Measuring the concentrations. Medical search. Frequent questions

For one month, researchers from the University of Helsinki and the Pegasor company located in Tampere measured ultrafine particle concentrations with independent measuring devices at the Pirkankatu monitoring station, which is part of the City of Tampere's air quality monitoring network. (tampere.fi)
There are currently no valid binding guideline or limit values for ultrafine particle concentrations. (tampere.fi)
In its proposal, the EU has not yet set limit values for ultrafine particle concentrations, as has already been set for other air pollutants. (tampere.fi)

We produce data sets for calibration of and comparison with sediment transport models, including wave parameters, suspended sediment concentration, and sediment flux. (usgs.gov)
Abstract: Profiles of suspended sediment concentration and velocity were measured over a 15-day period at a near-shore site off Santa Cruz, CA in Monterey Bay. (nerc.ac.uk)
Accurate measurement of suspended sediment concentration (SSC) in highly turbid environments has been a problem due to optical or acoustic signal saturation and attenuation. (tudelft.nl)

However, due to increasingly higher protein concentrations in TFF and other downstream processes, the general perception has been that conventional process UV absorbance measurements were no longer capable of tracking proteins at these concentration levels, even when using the smallest optical path lengths. (optek.com)
We have devised a simple immunofluorometric sandwich assay for measurements of the concentrations of APC-PCI complex, employing as the catcher, a monoclonal antibody that has a high affinity (K(D) = 4 x 10(-11) M) for a complexation-specific neoepitope that is expressed on PCI. (lu.se)
Hourly time-averaged near-bed concentrations of suspended sediment were calculated from three models and compared with the measurements. (nerc.ac.uk)
Estimates of the concentration at 1 cm above the bottom, C-a1, were obtained using the ABS measurements. (nerc.ac.uk)
C-1 calculated from these models compared well with measurements throughout the early and middle period of the storm, but underpredicted measured values during the latter part of the experiment. (nerc.ac.uk)
The goal of the measurements was to compare the particle concentrations measured using different methods and to examine how they compare to the recent target values. (tampere.fi)
During measurements lasting about one month, the hourly average values were exceeded twice, with peak concentrations exceeding 100,000 pcs/cm 3 . (tampere.fi)

Moreover, it has been shown that insulin, melanocyte-stimulating hormone and vasopressin can all cross the BBB and increase cerebrospinal fluid (CSF) as well as blood concentrations within 15-30 min after intranasal administration 8 . (nature.com)

There are still not enough long time series of particle concentrations, which also makes the assessment of epidemiological health hazards uncertain. (tampere.fi)

Many manufacturers of liquid products convert a measurement result such as density, sound velocity or refractive index into a more commonly used quantity, such as alcohol concentration in % v/v. Preset quantities or added custom quantities make this conversion possible. (anton-paar.com)
Another challenge when working with high protein concentrations are potential interferences caused by aggregates or the sometimes yellowish, or even brownish discoloration of proteins, observed at high concentrations, which may lead to significant measurement errors if not taken into account. (optek.com)
As a result of the warm weather on Saturday , high ozone concentrations were measured in Belgium, with the Uccle measurement network in Brussels recording levels that exceeded the European ozone concentration of 180 μg/m3. (brusselstimes.com)
At the Uccle measurement station in Brussels, a maximum hourly concentration of 181 μg/m3 was recorded at 20:00, surpassing the European information threshold, at which point the population must be informed of the levels recorded, according to the Interregional Environment Cell (Celine). (brusselstimes.com)
Background: The measurement of the serum concentration of fibroblast growth factor-23 (FGF-23) is beginning to be used as a diagnostic tool in renal phosphate wasting disorders. (uea.ac.uk)
Conclusion: The measurement of FGF-23 by both Immutopics assays is altered in the presence of low circulating concentrations of serum ferritin whereas with the Kainos intact assay this effect was not demonstrated. (uea.ac.uk)
A standard that would makes sense is Noise Equivalent Concentration Length (NECL), which is a measurement of how much gas over a path of a certain length can be detected above the intrinsic noise of the camera. (flir.com)
The NECL is easy to measure, is similar to another familiar measurement, and provides a simple way to compare the performance of different cameras. (flir.com)
OGI is a line-of-sight measurement, so it entails measuring the average absorption of the target wavelength over a given distance and using that to calculate concentration. (flir.com)
An older technique for leak detection, Method 21, also provides a concentration measurement in parts per million (ppm) using so-called "sniffers. (flir.com)
The limitation of this technique is that it is a spot measurement and can only provide the concentration in a particular place. (flir.com)
Equipped with a range switching function that always measures in the optimal range/resolution for dissolved oxygen concentrations ranging from low to high, allowing it to adapt to the specific measurement requirements of each process. (horiba.com)
The average concentration during the entire measurement period was approximately 4,900 pcs/cm 3 , with the daily average values varying between 3,000 and 8,000 pcs/cm 3 . (tampere.fi)
When preset concentration values are exceeded (for a threshold version), the detector's optical alarm signaling is activated, the built-in relays change their status and the information is transferred to a digital control module (for the measurement version the concentration value) - using a network in the industrial standard RS-485. (gazex.com)
The radon concentration in air at the workplace is determined primarily using an alpha track detector (integrating measurement) that is kept at the workplace for a minimum of two months, preferably three months, between the beginning of September and the end of May. (stuk.fi)
After this, if necessary, time-associated variations in the radon concentration can be analyzed by a so-called continuous radon measurement. (stuk.fi)
A key point in radon control at workplaces is that a reliable measurement method is used when determining the radon concentration. (stuk.fi)
The Picarro G2311-f flux gas concentration analyzer provides simultaneous, precise measurement of carbon dioxide (CO 2 ), methane (CH 4 ), and water (H 2 O) vapor at 10 Hz for eddy covariance, gradient, and eddy accumulation methodologies. (picarro.com)
Proportion of valid measurement time relative to the total measured time (time coverage) in the averaging period, expressed as percentage. (europa.eu)
The Picarro G2308 gas concentration analyzer provides simultaneous, precise measurement of nitrous oxide (N 2 O), methane (CH 4 ) at parts-per-billion (ppb), and water (H 2 O) vapor at parts-per-million (ppm) sensitivity with negligible drift for agriculture soil science, ecology, and emissions quantification. (picarro.com)
For example, if you were in an environment where the oxygen saturation was 7 mL/L but the oxygen concentration measured by the SBE43 was 0.28 mL/L, then your accuracy would effectively be +/- 50% of the measurement. (seabird.com)

The EPA's compilation of Air Pollutant Emissions Factors (known as AP-42), Section 2.4, provides typical concentrations of more than 40 NMOCs and inorganic compounds in MSW landfill gas. (cdc.gov)
In 2021, the WHO issued new and stricter non-binding guidelines values for pollutant concentrations. (tampere.fi)
Concentration or level of air polluting substance, here given as an aggregation of air pollutant concentration values from primary observation time series. (europa.eu)

Having observed an increased serum FGF-23 in three subjects with low circulating ferritin concentrations we investigated the association between low ferritin and raised serum FGF-23. (uea.ac.uk)
Serum ferritin should be measured when an elevated FGF-23 is obtained using the Immutopics C-terminal or intact FGF-23 assay to prevent misdiagnosis of the cause of this abnormality. (uea.ac.uk)
In the search for valid biomarkers in inflammatory diseases, cytokine serum concentrations are often measured by enzyme-linked immunosorbent assay and correlated to disease activity. (springeropen.com)
Studies of IL-33 serum concentrations in different diseases have been undertaken also recently in AD, proposing increased concentrations compared to healthy controls (Tamagawa-Mineoka et al. (springeropen.com)
Cholesterol is measured enzymatically in serum or plasma in a series of coupled reactions that hydrolyze cholesteryl esters and oxidize the 3-OH group of cholesterol. (cdc.gov)
HDL is measured directly in serum. (cdc.gov)

In filtration processes, the optimal approach to control a TFF process uses two UV sensors to monitor high protein concentrations in the retentate at an off-peak wavelength to verify the retentate concentration target, and low protein concentrations in the permeate at the peak wavelength with the highest sensitivity to supervise the membrane integrity. (optek.com)
Title : Inter-comparison of Low-cost Sensors for Measuring the Mass Concentration of Occupational Aerosols Personal Author(s) : Sousan, Sinan;Koehler, Kirsten;Thomas, Geb;Park, Jae Hong;Hillman, Michael;Halterman, Andrew;Peters, Thomas M. (cdc.gov)
PM 2.5 and PM 10 were measured using Nova Fitness SDS011 sensors, nitrogen dioxide (NO 2 ) and ammonia (NH 3 ) using Palmes tubes and odour annoyance was reported. (mdpi.com)
however, it has been a challenging task to attribute relative role of rice paddy in the spatial distribution , seasonal dynamics and interannual variation of atmospheric methane concentration as measured by spaceborne sensors," said Xiangming Xiao, a member of the Earth Observation and Modeling Facility at OU and a professor in the Department of Microbiology and Plant Biology who coordinated this interdisciplinary study . (phys.org)

EV GFAP and EV NfL were measured using an ultrasensitive assay in 72 TBI patients and 20 controls. (quanterix.com)

High maximum hourly concentrations were also reached in Flanders, where 177 μg/m3 was recorded in Aarschot, while in Wallonia, the highest level was 170 μg/m3, recorded at the Rixensart measuring point. (brusselstimes.com)
Concentrates larger than 20,000 pcs/cm 3 as an hourly average are also mentioned as high concentrations. (tampere.fi)

The study was performed according to the OECD Guideline for Testing of Chemicals 305 (Bioconcentration: Flow-through Fish Test) adopted on June 14, 1996 using two test material concentrations for exposure to Cyprinus carpio. (europa.eu)

Instruments which measure the density at a certain set temperature (e.g. 20 °C), such as DMA 501 I 1001 I 4101 I 4501 I 5001, DMA M, DSA 5000 M, SDA M (Soft Drink Analyzer M) or PBA (Packaged Beverage Analyzer) usually use conversion tables or conversion formulas of density and concentration at a certain temperature. (anton-paar.com)

That tells you the concentration of the methane in that area. (flir.com)
If you had a 1-m long tube filled with 100 percent methane, the concentration length would be 1 million ppm x m. (flir.com)
A University of Oklahoma-led study shows that paddy rice (both area and plant growth) is significantly related to the spatial-temporal dynamics of atmospheric methane concentration in monsoon Asia, where 87% of paddy rice fields are situated in the world. (phys.org)
By combining the annual paddy rice maps, rice plant growth data and atmospheric methane concentration (XCH4) data, researchers found strong spatial consistencies between rice paddy area and XCH4 and seasonal consistencies between rice plant growth and XCH4, including both single rice and double rice fields. (phys.org)
This OU-led study, "Fingerprint of rice paddies in spatial-temporal dynamics of atmospheric methane concentration in monsoon Asia," was published by Nature Communications . (phys.org)
Geli Zhang et al, Fingerprint of rice paddies in spatial-temporal dynamics of atmospheric methane concentration in monsoon Asia, Nature Communications (2020). (phys.org)
The team led by Hubertus Fischer, professor of experimental climate physics and member of the Oeschger Center for Climate Change Research has succeeded, in collaboration with Empa, in developing a new technique to jointly measure the greenhouse gases carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) as well as the carbon isotope composition of CO2. (lab-worldwide.com)

in areas where more than 10 per cent of the radon concentrations measured earlier exceeds the value of 300 Bq/m 3 . (stuk.fi)
The employer shall assure that no employee is exposed to an airborne concentration of formaldehyde which exceeds 0.75 parts formaldehyde per million parts of air (0.75 ppm) as an 8-hour TWA. (cornell.edu)

We developed a reliable method of measuring the effective F IO 2 in patients receiving supplemental oxygen. (rcjournal.com)
We used oxygen concentrations of 47% and 97%, and flow rates between 1 L/min and 8 L/min. (rcjournal.com)
Effective F IO 2 was derived from plots of the fractional concentrations of carbon dioxide versus oxygen. (rcjournal.com)
This is a dissolved oxygen monitor designed for low-flow applications, ideal for monitoring the concentration of dissolved oxygen in HF solutions during wet processes. (horiba.com)
What is the minimum dissolved oxygen concentration that can be accurately measured by the SBE 43 DO sensor? (seabird.com)
The lower limit of detection of dissolved oxygen concentration is going to be constrained by the accuracy specification, which is a ratio of the calculated oxygen saturation (initial accuracy: +/- 2% of saturation). (seabird.com)

At other landfills, states may operate ambient air monitoring stations near landfills to measure concentrations of some or all of EPA's criteria pollutants (carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter, and sulfur dioxide). (cdc.gov)

Concentration length is the average amount of gas in the air over a given distance, measured in parts per million per meter (ppm x m). (flir.com)

First, we developed a unique experimental setup and produced ∼2000 leaf samples at a wide concentration range of macronutrients (0.5-10 mg P per g, 1-50 mg K per g, or 2-40 mg Ca per g) and trace elements (0.05-0.4 mg Mn per g, 0.05-0.4 mg Fe per g, or 0.005-0.06 mg Zn per g) in multiple crops. (rsc.org)

The summed concentrations of 16 PAHs ranged from 8700 to 52 000 pg/m3 over the sampling area, and DDT, chlordane, and endosulfan concentrations were in the ranges of 2.7-9.9, 8.2-66, and 16-85 pg/m3, respectively. (uiowa.edu)
The data also showed that the concentrations measured with a passive atmospheric sampling system are in good agreement with those measured with an active, high-volume, sampling system. (uiowa.edu)
active, 1 day), and that both of these measured concentrations cover about 5 orders of magnitude, the agreement between these passive and active sampling methods is excellent. (uiowa.edu)
From a practical standpoint, selection of chemicals for monitoring is determined by weighing several factors, such as cost, chemical toxicity, and the availability of sampling methods that can reliably measure ambient air concentrations of a given chemical. (cdc.gov)
i) Unless the employer chooses to measure the exposure of each employee potentially exposed to formaldehyde , the employer shall develop a representative sampling strategy and measure sufficient exposures within each job classification for each workshift to correctly characterize and not underestimate the exposure of any employee within each exposure group. (cornell.edu)

Instruments which measure the density at ambient temperature, such as DMA 35, Snap 51 or inline process measuring systems, use polynomial functions based on tables of density and concentration at different temperatures. (anton-paar.com)
Ambient air monitoring measures levels of contamination in outdoor air, or in the air that people breathe. (cdc.gov)
The levels of pollution measured in the ambient air reflect the combined influences of many different nearby sources, and even some distant ones. (cdc.gov)
How are ambient air concentrations measured? (cdc.gov)
Ambient air concentrations are generally measured according to specifications set forth in an ambient air monitoring plan. (cdc.gov)
The revised Ambient Air Quality Directive would also oblige ultrafine particles to be measured. (tampere.fi)

The process analytical approach possible with optek instrumentation monitors low protein concentrations using the standard wavelength of 280 nm aiming at the main absorption peak while measuring high protein concentrations off-peak, i.e. at slightly longer wavelengths in the UV spectrum. (optek.com)
In chromatographic processes, a combination of both wavelengths in one dual-channel sensor can be used to track the whole elution process from the lowest protein concentrations required to determine the optimal cut points for fractionation up to the highest protein concentrations present in the elution peak. (optek.com)
Here, our aim was to determine if glial fibrillary acidic protein (GFAP) and neurofilament light (NfL) measured 1-year postinjury in EVs could distinguish patients from controls, and whether these biomarkers relate to TBI severity or recovery outcomes. (quanterix.com)
The dentine fluid and plasma were analysed for total protein and the relative concentrations of these two fluids compared. (elsevierpure.com)
There was no difference in protein concentration of samples collected from dentine or directly from the pulp following pulp exposure, indicating that dentine fluid may be used to determine the composition of pulp interstitial fluid. (elsevierpure.com)

Atmospheric concentrations of flame retardants, polycyclic aromatic hydrocarbons, and pesticides were measured using passive air samplers equipped with polyurethane foam disks to find spatial information in and around Chicago, Illinois. (uiowa.edu)

the use of administrative measures (i.e., policies and procedures and enforcement measures) to reduce the risk of exposure to pathogenic organisms. (cdc.gov)
Modification of the home environment is the primary measure to reduce allergen exposure. (medscape.com)
A comprehensive strategy should include determining the allergens to which the individual is sensitive and implementing specific avoidance measures to reduce exposure to the offending allergens. (medscape.com)
i) The employer shall periodically measure and accurately determine exposure to formaldehyde for employees shown by the initial monitoring to be exposed at or above the action level or at or above the STEL . (cornell.edu)
The exposure was concentration was maintained using HCO-40 as solubiliser. (europa.eu)

One kit, Human FGF-23[C-term] (Immutopics Inc, USA) measures total FGF-23 whereas the other two kits, Immutopics intact and FGF-23 ELISA (Kainos, Japan) are reported to measure only the biologically active intact molecule. (uea.ac.uk)
A single-molecule array was used to analyze concentrations of p-tau181 and NfL in participants' blood samples. (medscape.com)

For references , please go to https://www.eea.europa.eu/data-and-maps/data/external/cdiac-concentration-of-compounds-measured or scan the QR code. (europa.eu)

Under the EU project 'Beyond Epica', researchers have developed a new method under which greenhouse gas concentrations in 1.5 million-year-old ice can be measured even more accurately. (lab-worldwide.com)

The programs should attempt to measure as many of the chemicals detected in the soil gas and emissions as possible, but especially the most toxic chemicals with the highest concentrations and emission rates. (cdc.gov)
The test material showed no toxic potential at concentrations at or above the water solubility. (europa.eu)

For many years, it has been industry practice to gather process samples from product streams and measure them off-line, diluted to low concentrations, in the laboratory. (optek.com)
all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation no. (gazex.com)

We measured concentrations of SARS-CoV-2, influenza A and B virus, respiratory syncytial virus (RSV), mpox virus, human metapneumovirus, norovirus GII, and pepper mild mottle virus nucleic acids in wastewater solids at twelve wastewater treatment plants in Central California, USA. (nature.com)
Wastewater-based epidemiology uses concentrations of infectious disease targets in wastewater to understand disease occurrence in communities. (nature.com)
Given these findings, we implemented the Sewer Coronavirus Alert Network (SCAN) project to provide real time data on concentrations of SARS-CoV-2 RNA in wastewater solids samples in late 2020. (nature.com)

We used low-cost methods to measure air quality components and facilitated a dialogue between stakeholders about the results and solutions for cleaner air. (mdpi.com)
In NHANES 1999-2000, HDL-cholesterol was measured using two methods. (cdc.gov)

Cholesterol in the HDL-containing supernatant is measured as described above for total cholesterol. (cdc.gov)
Each workplace is measured with at least two detectors, unless the total area of the workplace is small (less than 100 m 2 ). (stuk.fi)

Ownership Concentration Measures Compared (December 5, 2019). (ssrn.com)
In the Tampere air quality monitoring network, ultrafine particles have been measured at the Pirkankatu and Epilä monitoring stations since 2019 with a device that measures the amount of electrical charge accumulated on the surface of the particles, from which the number concentration can also be calculated. (tampere.fi)
2019 ( https://www.who.int/nutrition/publications/UNICEF-WHOlowbirthweight-estimates-2019/en/ ). (who.int)

During high ozone concentrations, as a preventive measure, people who are particularly sensitive to air pollution, such as children, elderly people, people with respiratory problems, etc., should avoid unusual physical efforts and any outdoor exercise between noon and 22:00. (brusselstimes.com)
The high ozone concentrations are a result of pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources chemically reacting in the presence of sunlight. (brusselstimes.com)
As a daily average, less than 1,000 pcs/cm 3 is a low concentration, while a high concentration is more than 10,000 pcs/cm 3 . (tampere.fi)
On the other hand, they exceeded the high concentration level on approximately 35 days at both stations. (tampere.fi)
High-precision, low-drift operation makes it ideal for measuring localized fluxes over extended periods in agriculture and soil science, ecology, and emissions quantification applications. (picarro.com)
C. Next, the sample is evaluated whether the measured high value is in excess of the normal, historical values . (esipfed.org)

How to measure radon concentration at workplace? (stuk.fi)

The concentration and velocity data were collected with an Acoustic Backscattering System (ABS) and Acoustic Current Profiler (ACP) that were mounted on a bottom tripod. (nerc.ac.uk)

The plasma concentrations of APC-PCI complex is increased in hypercoagulative states such as deep venous thrombosis. (lu.se)
The method gives a linear dose-response curve (0.06-50 microg/l), has a low detection limit (0.06 microg/l) and no crossreactivity with native PCI at physiologic plasma concentrations. (lu.se)
0.10) between oxytocin plasma and CSF concentrations. (nature.com)
Elevated OXT plasma concentrations peaking at 10-40 min after intranasal administration of OXT (30 IU) have been documented in three male volunteers 11 . (nature.com)

This will improve the air quality and ozone concentrations will decrease to normal levels for the time of year. (brusselstimes.com)
Measured levels in Sweden are far below reported concentration of environmental impact. (janusinfo.se)

These findings suggest that blood-derived EV concentrations of GFAP and NfL drawn even 1 year after injury are higher in TBI patients compared to controls, and are related to injury severity and poor recovery outcomes, suggesting that TBIs alter the activity of these biomarkers, likely contributing to individual variability in recovery. (quanterix.com)
There has been an unprecedented interest in the modulatory effects of intranasal oxytocin on human social cognition and behaviour, however as yet no study has actually demonstrated that this modality of administration increases concentrations of the peptide in the brain as well as blood in humans. (nature.com)
To estimate the incremental cost of implementing policies for intensive control of blood glucose concentration and blood pressure for all patients with type 2 diabetes in England. (bmj.com)
The aim of this study was to discover if the forced inspired inert gas sinewave technique could be used to measure pulmonary blood flow, using nitrous oxide as the indicator gas, following inotropic stimulation of the heart by dobutamine, in the presence of a constant alveolar ventilation. (southwales.ac.uk)
The difference in the amount of gas inhaled and exhaled measures how effectively gas travels from the lungs into the blood. (medlineplus.gov)
Hepatic microsomal activities were measured, hepatic lipid peroxidation was determined, and blood was assayed for methemoglobin. (cdc.gov)

This compact assembly measures two UV wavelengths, pH, conductivity and temperature. (optek.com)

Pulmonary function tests are a group of tests that measure breathing and how well the lungs are functioning. (medlineplus.gov)

In rats given supplemented diets, liver Cu concentrations increased with increasing dose. (cdc.gov)

The national outbreak response team issued guidelines for classification of these contacts and control measures, including restrictions on leaving the country. (cdc.gov)

Lung volume can also be measured when you breathe nitrogen or helium gas through a tube for a certain period of time. (medlineplus.gov)
To measure diffusion capacity , you breathe a harmless gas, called a tracer gas, for a very short time, often for only one breath. (medlineplus.gov)
The concentration of the gas in the air you breathe out is measured. (medlineplus.gov)

This imaging technique, which relies on thermal cameras that measure changes in infrared (IR) radiation as it passes through gas, is still relatively new and no official standard exists to characterize how good a job any particular camera does at detecting leaks, or to say how small a leak a given camera can find. (flir.com)
Our devices are designed to comply with the standard for measuring the number concentrations of ultrafine particles. (tampere.fi)
is the concentration over the 15ug/m3 annual or 35 ug/m3 daily standard? (esipfed.org)

OGI works by measuring the IR radiation passing through a volume of gas. (flir.com)
If you're looking for natural gas leaks, it's a simple matter to use the IR camera to measure how much of the radiation is being absorbed by gas in a given volume of air. (flir.com)
The Radiation and Nuclear Safety Authority (STUK) supervises the radon concentrations at workplaces. (stuk.fi)

The concentration of the gas in a chamber attached to the tube is measured to estimate the lung volume. (medlineplus.gov)

The alpha track detector indicates the long-term average radon concentration. (stuk.fi)

The chemometric investigation developed into crop-specific predictive models that fitted chemical analyses of mineral concentrations by R 2 s of ∼0.9 and an RMSE of 5% of the concentration range. (rsc.org)
By measuring how much air you exhale, and how quickly you exhale, spirometry can evaluate a broad range of lung diseases. (medlineplus.gov)

Noise Equivalent Concentration Length is a useful method to measure the quality of a camera. (flir.com)
We describe a citizen science (CS) project in Venray, the Netherlands, where air quality was measured at livestock farms and surrounding residential premises. (mdpi.com)
The EU is the first major player in reforming the regulation of air quality measuring. (tampere.fi)

Understanding the spread of pollution and the potential risks it poses to deep-sea ecosystems is important for developing better conservation measures. (frontiersin.org)

How are the Measuring, Testing & Navigational Equipment Manufacturing in the UK industry's products and services performing? (ibisworld.com)

The concentrations were verified analytically using a HPLC method with UV detection. (europa.eu)

For each mechanical system consider the phase space equipped by the invariant Liouville measure (the phase volume) and conserving energy E. The microcanonical ensemble is just an invariant distribution over the surface of constant energy E obtained by Gibbs as the limit of distributions in phase space with constant density in thin layers between the surfaces of states with energy E and with energy E+ΔE. (wikipedia.org)
INTERNATIONAL ATOMIC ENERGY AGENCY, The Radiological Situation at the Atolls of Mururoa and Fangataufa Technical Report Volume 1 Radionuclide Concentrations Measured in the Terrestrial Environment of the Atolls, Radiological Assessment Reports Series No. , IAEA, Vienna (1998). (iaea.org)
They used T1-weighted MRI scans to measure gray matter volume. (medscape.com)

We anticipate that our technique will prove useful for directly measuring evolving concentration profiles, opening new possibilities for the direct interrogation of dynamic, material systems. (aiche.org)
Ice cores are an extremely important climate archive because only they contain the air of the past to directly measure past greenhouse gas concentrations. (lab-worldwide.com)

Can measure flow rates as low as 15 mL/min. (horiba.com)

Cognitively unimpaired participants responded to the Preclinical Alzheimer Cognitive Composite, a measure designed to detect early cognitive changes in cognitively normal patients with Alzheimer's disease pathology. (medscape.com)

Ultrafine particle concentrations3

Sediment concentration3

Measurements7

Cerebrospinal fluid1

Particle1

Measurement21

Pollutant3

Serum6

Sensors4

Assay1

Hourly2

Guideline1

Analyzer1

Methane7

Exceeds2

Oxygen6

Carbon1

Meter1

0.051

Sampling5

Ambient6

Protein5

Atmospheric1

Exposure5

Molecule2

Compounds1

Accurately1

Toxic2

Laboratory2

Wastewater3

Methods2

Total2

20193

High6

Workplace1

Data1

Plasma4

Levels2

Blood6

Temperature1

Pulmonary1

Dose1

Classification1

Breathe3

Standard3

Radiation3

Chamber1

Detector1

Range2

Quality3

Pollution1

Products1

Method1

Volume3

Directly2

Rates1

Cognitive1