Sentences with phrase «used at concentrations»

The IHC was done following the same protocol as for the confocal experiments, except that the McSA1 and pab27576 were used at a concentration of 1:1000.

Not exact matches

This report uses custom Statistics Canada data to take a closer look at the concentration and distribution of wealth in Canada.
Mr. Fitzpatrick says that «we would not react patiently to a German who excused his reluctance to use force in 1942 to free concentration camp inmates if he argued that he was convinced at the time that he could do more good by working within the system to end Nazi control than by risking his own arrest and imprisonment in an armed strike to free a few dozen inmates scheduled for the gas chambers on a single morning.»
I insist that the Church would not condemn guerrilla action taken to free concentration camp inmates facing Nazi gas chambers, or the use of force by a civilian to stop killings such as those that took place at Columbine High School, or in a situation such as my example of a man killing infants in a nursery.
We use baking soda at a less than 5 % concentration so it's not irritating on skin.
The «Gourmet Series», will be unveiled at ISM 2013 in Cologne, comprises of six varieties of fruit pieces made using Taura's unique Ultra Rapid Concentration (URC) technology and designed to be -LSB-...]
Concentrations of carotenoids and retinoids in serum samples collected at baseline and analyzed by using HPLC (22) are presented in Table 2.
Rice used for protein manufacturing is carefully scrutinized and tested at the lowest levels tests will allow because when the concentrated protein is fractioned out, the naturally occurring heavy metal concentration can also increase.
It is probably true to some extent that the remarkable habits of discipline acquired during her years of competitive skating stood Tenley in good stead at Harvard; all medical students could use a capacity for seven or eight hours of intense concentration and a habit of getting up at 4 in the morning.
We used the same idea to learn about concentrations and made treasure maps at the same time, which were great for starting to learn about directions.
Even with the use of over the counter medications, which are relatively safe, may at some concentration level pose danger to the breastfed child.
SCIENTIST Hydrochloric acid is found in toilet cleaners at concentration 100 times higher than what's used in fracking!
In 2001, the U.S. Environmental Protection Agency («EPA») concluded that appropriate use of DEET at concentrations of up to 30 % posed no significant risk to children or adults but that DEET should not be used on children younger than 2 months of age because of increased skin permeability.
Another strategy is to make alternative versions of terminal oxidases, enzymes in the membrane that transfer electrons to oxygen, which use oxygen more efficiently or are better at scavenging oxygen when its concentration is low.
When elevating calcium ion concentration directly at the presynaptic terminal with the use of caged calcium, cleavage of SNAP - 25 by botulinum toxin A (BoNT / A) produced a strong reduction in the calcium sensitivity for release, whereas cleavage of syntaxin using BoNT / C1 and synaptobrevin using tetanus toxin (TeNT) produced an all - or - nothing block without changing the kinetics of remaining vesicles.
His calculations, based on 2008 figures for the concentration of CO2 in the atmosphere, show that even assuming a lower estimate of forest carbon content, total and equivalent CO2 would level out at 476 parts per million, even if we stopped all fossil fuel use immediately.
This synergy allows the drugs to be used at lower concentrations, thereby reducing toxicity, and could «increase the chances that only the virus is reactivated,» Verdin says.
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.
Bronte Tilbrook at CSIRO in Hobart, Tasmania, Australia, measured the concentration of aragonite — a form of calcium carbonate used by some creatures to build shells — at over 200 locations on the reef.
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.
The most heavily used herbicide in the United States, atrazine, makes hermaphrodites of male frogs at concentrations commonly found in the environment, according to a study published in the 16 April issue of the Proceedings of the National Academy of Sciences.
Nor did the EPA show the best understanding of toxicology in urging BP in a directive to use dispersants with a «toxicity value less than» a certain cutoff: in toxicology, a chemical that produces harm at low concentrations, say, five parts per million, is more deadly than those that kill at 10 parts per million.
Migraine sufferers have significantly higher sodium concentrations in their cerebrospinal fluid than people without the condition, according to the first study to use a technique called sodium MRI to look at migraine patients.
But the concentrations used in Vietnam, at 40 litres per hectare, were 20 to 100 times those employed in normal agriculture.
Using this method, we have detected target DNA at concentrations as low as 500 femtomolar with a point mutation selectivity factor of ∼ 100,000:1.
The treatment uses tiny droplets of fat, called nanoliposomes, which are coated in protein fragments that are able to stop amyloid protein accumulating into plaques, even at low concentrations.
The underwater application means the dispersant can be used at a lower concentration, in a oil - to - dispersant ratio of 50 - to - 1.
«There can be different combinations of materials that can be used in these two layers that can lead to higher efficiencies at lower concentrations,» Ghasemi says.
A proposal we had co-authored with Chet Spicer (Battelle, Columbus, Ohio) to directly measure gaseous halogen concentrations by using atmospheric pressure chemical ionization (APCI) mass spectrometry in the early arctic spring was gratuitously funded at the eleventh hour, and Finlayson - Pitts asked me to participate in the field work despite the fact that I had no previous experience in field research.
The high concentration of these artefacts suggests significant activity at the sites and that they were regularly used by early hominins.
Using high - affinity anti-interferon - antibodies isolated from patients with a syndrome called APECED, the researchers were able to detect interferon - at attomolar concentrations, equivalent to just quadrillionths of a gram per milliliter of sample.
Lead author Hilary Dugan, a limnologist at the University of Wisconsin - Madison and former Cary Institute of Ecosystem Studies Postdoctoral Fellow, explains, «We compiled long - term data, and compared chloride concentrations in North American lakes and reservoirs to climate and land use patterns, with the goal of revealing whether, how, and why salinization is changing across broad geographic scales.
Using hollow - core optical fibre as a sensitive gas cell, researchers in Japan have devised a relatively simple and affordable sensor for monitoring biomarkers in human breath at low concentrations.
Using Earth - based telescopes to study sunlight reflected from the planet, the team found concentrations as high as 45 parts per billion near three geological features at a specific time: summer in the northern hemisphere of Mars in the Earth year 2003.
Commonly, scientists use various strategies to improve DMFC performance at high concentrations of methanol.
Working with FENG Yan, a doctoral student, and LIU Hui, an assistant professor, YANG used selective electrocatalysts to run a DMFC at methanol concentrations up to 15 M, an alternative method for solving the methanol crossover in DMFCs.
Mr van der Zanden used a range of instruments to measure the concentration and speed of sand particles in the water, he also examined changes in the underlying sand layer, and measured the water pressure at various points in the wave flume.
This process is already used to detect blood at crime scenes and to determine the concentrations of different components of biological samples.
«Most previous studies have focused on using one technique at a time, even though we have evidence that there are alterations in the brain in autism in terms of structure, white - matter connectivity, and brain chemical concentrations.
This new probe is extremely sensitive and was used at very low concentrations to correctly identify every positive amyloidosis sample when compared to the traditional clinical tests.
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.
To prove their concept of this multiplex spectral microgel analysis within a microfluidic flow, the team used «different barcodes corresponding to different emissions at specific wavelengths and the fluorescence intensity of known microRNA concentration,» which was measured for calibrations of the specific microRNA being explored.
Researchers at the University of Edinburgh and the MRC Laboratory for Molecular Biology in Cambridge used molecular analysis to find that concentrations of magnesium rose and fell in a 24 - hour cycle in all cell types, and that this impacts on the cells» internal clocks.
One study hints at subtle neural and behavioral anomalies in dentists, who collectively use 300 metric tons of mercury in amalgams each year and who often have two to five times the typical concentration of mercury in their urine.
They then used a statistical method called the maximum likelihood technique, which helped them work out what processing of inputs at a cell's receptors would provide the best estimate of the chemical concentration.
«From our laboratories at the Departamento de Ingeniería del Terreno (DIT) we analysed the response of the new material, with different concentrations of used tire rubber, in order to find the best composition,» says Carlos Hidalgo Signes, also of the UPV.
Collins said at higher concentrations three of the TAMLs impaired development, indicating that they should be avoided for use in water treatment.
After acetylation by treatment with 0.1 m triethanolamine 0.25 % acetic anhydride, pH 8.0, the tissue was prehybridized (prehybridization solution: 0.75 m NaCl, 25 mm PIPES, 25 mm EDTA, 5 × Denhardt's reagent, 0.2 % SDS, 250 μg / ml Escherichia coli tRNA, and 500 μg / ml salmon testis DNA, pH 6.8) at room temperature for 5 h. Riboprobes were incubated for 10 min at 85 °C before application onto the sections and used for hybridization at a final concentration of 500 ng / ml.
At the concentrations typically used for decontaminating water, none of the TAMLs impaired embryo development.
Scientists have long used ground - based monitoring stations, like the federal observatory at Mauna Loa, Hawaii, to track greenhouse gas concentrations close to Earth's surface.
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