Sentences with phrase «nanotax at high concentrations»

EGF and TGF - alpha were found at higher concentrations in the milk of mothers who delivered prematurely compared with those who delivered at term.
«Instead of promoting infection, at higher concentrations, BX795 actually helped cells clear the infection.»
«Clay can tend to immobilize molecules, and we think at these higher concentrations, clay is holding onto the prions so they're not bioavailable,» Dorak says.
And so did the scent of chemicals from the armpit, called axillary secretions, some of which are found at higher concentrations in male mammals than in females.
«This work demonstrates that mined watersheds contribute disproportionately to summer baseflow through the Appalachian region, so that mine - derived pollutants are at higher concentrations, and are transported farther downstream, during these low flow times of year.
This suggests that unlike all the other tastes we've cracked so far, salt perception has two parts: some receptor that's involved in making salt attractive, and a second receptor, or other biological process, that makes it unattractive at high concentrations.
For example, I use melanzane alla Parmigiana [eggplant parmesan] to explain osmosis, the process during which solvents like water move through a semipermeable membrane from an area where solutes like salt are at lower concentration to an area where they are at higher concentration.
«Funk basically covers anything «weird» in beer that might be interesting or pleasant in small amounts but off - putting at higher concentrations.»)
If perchlorates are widespread on Mars at high concentrations, then pockets of liquid water might also be widespread below the planet's surface.
After more than six years of research, the research team led by María Soengas, head of CNIO's Melanoma Group, showed that RAB7 acts as an orchestra director, determining the fate of melanoma cells: at high concentrations of RAB7, cellular autodigestion is very active, and this allows tumor cells to obtain energy, prevent the accumulation of toxic components and thus divide and proliferate; when RAB7 is reduced, cells use endosomes to recycle metastatic proteins, favouring their dispersal throughout the body.
It seems likely that the highly localised heating on the surface of nanoparticles somehow disrupts hydrogen bonding within the ethanol — water mixture, allowing greater separation of ethanol from water molecules at higher concentrations of ethanol.
To maintain the solubility constant, which, however, slightly differs for the phases precipitated in different pH ranges, the solubility concentration of calcium ions is specifically lower at higher concentrations of carbonate (higher pH).
«At high concentrations» of VX - 770, when combined with VX - 809, «there is a very strong inhibition» of how well the protein functions, Gentzsch says.
«The blend - stock can be mixed into gasoline at higher concentrations than ethanol's current limit of 10 percent; plus it can be added to diesel and jet fuel.
But at higher concentrations, and under the right conditions, melittin molecules group together into rings creating large pores in membranes, weakening a cell's protective barrier and causing the entire cell to swell and pop like a balloon.
Herbivore activity was greater at lower elevations and higher temperatures and at high concentrations of foliar P, with up to 20 % of foliar productivity diverted to herbivores over the year.
Thus, for the longer sequences, even a single protein can begin the aggregation process, especially at high concentrations.
Physicists of Ludwig - Maximilians - Universitaet (LMU) in Munich now show that, at high concentrations, a crucial protein can assemble into ring - shaped filaments that constrict the cell, giving rise to two daughter cells.
Commonly, scientists use various strategies to improve DMFC performance at high concentrations of methanol.
At intermediate drug concentrations, drug - resistant strains start to dominate, and at high concentrations, HIV can not grow.
At high concentrations, the pheromone affects the insects» nervous systems, and can also slow their growth and reproduction.
Any accidental release of fluorine could also be an issue: Fluorine is a toxic and corrosive gas and, at high concentrations, can retard plant growth and damage teeth and bones.
The hybrid material adsorbed and removed the dye, even at high concentrations, with 94 % efficiency.
Using a funnel to capture the rising odor, they determined that the musty smell peaked at the highest concentrations of the carbonyl compound 1 - octen -3-one.
Chemotherapy usually requires the delivery of multiple toxic drugs at high concentrations, and we could deliver all of these drugs in one injection at much lower dosages.
To the researchers» surprise, the bees also preferred sugar syrup laced with glyphosate — the active ingredient in Monsanto's Roundup herbicide — at 10 parts per billion, but not at higher concentrations.
These circuits ensure that salt is appealing to humans at low concentrations, but not at high concentrations.
These molecules derailed SIV in test - tube studies and can remain in the blood at high concentrations.
Collins said at higher concentrations three of the TAMLs impaired development, indicating that they should be avoided for use in water treatment.
The scientists also have demonstrated in animals that the PKal molecular pathway can induce retinal edema through mechanisms that are independent of the VEGF pathway, which at normal levels helps to build and maintain blood vessels but at high concentrations can induce abnormal vessel growth and contribute to DME.
In contrast, high TRF2 expression observed at higher concentration (80μM) in clonospheres (Fig 2f) corresponded to the presence of low DSB foci in clonospheres (Fig 2b).
Antibiotics can be categorized based on whether they directly kill bacteria (bactericidal) or slow growth / prevent cell division (bacteriostatic); however, the distinction between the two categories may be a bit of a gray area as some bacteriostatic reagents can kill bacteria when used at high concentrations (and vice versa).
Elevated TRF2 expression in clonospheres at high concentration of Bleomycin may contribute to increased expression of stem cell factors.
Similar indolone compounds had been found to inhibit cell death but were toxic at higher concentrations.
Since we know the Gal4 - UAS system is sensitive to temperature and in fact, expression levels of these transgenes differ at 22 °C and 25 °C, Drosophila GBPs might also suppress ILP secretion from the insulin - producing cells when expressed at high concentrations.
«At the highest concentrations of salt, none of the zooplankton survived.
Among all of the organisms tested in our experiment, only one showed any sign of compounded stress when the two contaminants were combined, and this only occurred at our highest concentrations of both contaminants.
At the highest concentration of the salt alternative and the two highest concentrations of NaCl, we observed lethal effects on the zooplankton of our communities.
Our hypothesis is that endocannabinoids are enriched at high concentration within tips of the growing axons.
True that it does have physiological effects that at high concentrations can lead to death (oxygen also has this characteristic).
He is also the author of 12 patents for the preparation of aqueous suspensions at high concentration of particulate, for the therapy and photodynamic diagnosis of tumors, for the conservation of the cultural heritage, for the setup of a new process for the treatment of textile industrial waste, for production of emulsions from Bio Crude Oil, for production of nanoparticles and novel nano - coatings via flame - spraying, and using homogeneous and heterogeneous solutions.
Although some bacteria - associated cues induce oviposition at specific concentrations, the same cues at higher concentrations (e.g., tetradecanoic acid), or other cues produced by either the same or different bacteria (e.g., hexadecanoic acid methyl ester), deter oviposition.
[1] It's exhibited longer sustained periods of availability of curcuminoid at high concentration levels that provides the body potent antioxidant protection.
despite its controversy in mainstream medicine that antioxidants counteract chemotherapy, at the high concentrations achieved intravenously, vitamin C acts as a prooxidant and is toxic to tumor cells.
Additionally, while the lower infusion rates caused a significant increase in protein synthesis, further increases at the higher concentration levels showed smaller additional benefits.
At lower concentrations lemon displayed bacteriostatic activity (slow bacterial growth), but bacteriocidal activity (kill bacteria) at higher concentrations [22].
It's highly toxic to algae and other aquatic organisms, and has been detected at high concentrations in earthworms.
For those not consuming brown rice, gamma oryzanol is found at high concentrations in rice bran oil (especially when not subject to alkali refining), which has the highest phytosterol content among cooking oils.
A range of NSAIDs, but not paracetamol or non-acidic NSAIDs which have a favourable gastrointestinal tolerability profile, uncoupled oxidative phosphorylation in vitro at micromolar concentrations and inhibited respiration at higher concentrations.
At lower concentrations they can act as pheromone and endocrine disruptors, while at higher concentrations they can be acutely toxic to invertebrates.
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