Gender bias in
the measurement properties of the Centre for Epidemiologic Studies Depression Scale (CES - D)
We searched the following databases from 1990 to April 2012 (initial search to November 2010; update search to April 2012) to find studies on
measurement properties of instruments, assessing externalizing mental health problems in immigrant ethnic minority youths: MEDLINE, EMbase, PsycINFO, Cochrane Library.
Measurement properties of instruments assessing permanent functional impairment of the spine: a systematic review protocol
Overall, the quality of the studies assessing
measurement properties of PA questionnaires was rather poor.
In the future, more attention should be paid to the methodology of studies assessing
measurement properties of PA questionnaires and the quality of reporting.
Not exact matches
Another important
measurement of Google's ads business changed this quarter as it started reporting Network
properties growth in impressions versus clicks to reflect the way advertisers buy programmatic ads.
«AREA will be working with local boards to look at the existing rules and agree on the implementation and enforcement
of a provincial standard
of measurement for residential
properties, including condominiums, for the benefit
of all consumers.»
A Wavelet Time - Frequency Perspective», Thomas Conlon, Brian Lucey and Gazi Salah Uddin examine the inflation - hedging
properties of gold over an extended period at different
measurement frequencies (investment horizons) in four economies (U.S., UK, Switzerland and Japan).
In quantum mechanics, the idea
of probability only applies to groups
of systems and not to individual systems; in particular, no
measurement exists for the supposed probability
property for an individual system.
Recent results have indeed been able to show that probabilistic predictions in quantum mechanicslogically follow, without any additional postulates, from the description
of individual quantum systems, with the aid
of the wave function, which can be expressed, as we have seen, in a completely non-probabilistic way and the assumption that the objective
properties of the system can be obtained by
measurements with certainty.
The evidence includes the precise
measurements of four fundamental forces that are responsible for all
properties and changes affecting matter.
For this reason I doubt the possibility
of measurement in space which is heterogeneous as to its
properties in different parts.
Moreover, all
of this common knowledge
of the so - called primary
properties is based on
measurements in terms
of units: centimeter, gram, second, with operational definitions which are recipes for voluntary actions.
From this base, he can move to a formal definition
of the projective
properties of straightness and flatness in the derivations
of PR IV, 3, apply those notions to the doctrine
of strains (PR IV, 4), demonstrating that the shrinking
of a set
of linear relations into the microcosm
of a strain seat does not distort those relations, and hence that the
measurement of a strain locus in the presentational immediacy
of the measurer says something objective about the contemporaneous world (PR IV, 5).
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Property Documentation
In a set
of papers posted online August 4 at arXiv.org, scientists with the Dark Energy Survey reported new
measurements of the universe's
properties, including the amount
of matter (both dark and normal) and how clumpy that matter is (SN: 9/2/17, p. 32).
This fuzziness is not due to poor
measurement; it is an intrinsic
property of particles on the quantum scale.
To be clear, it's not just that physicists don't know what the
properties are; the
properties literally only come into being at the time
of the
measurement.
In entanglement, two particles become twinned in such a way that the
measurement of one always determines the
properties of the other, no matter how far apart they may be.
The CRaTER observations have validated the models and the ground - based
measurements, meaning that lightweight shielding materials could safely be used for long missions, provided their structural
properties can be made adequate to withstand the rigors
of spaceflight.
«Quantum mechanics has this famous feature where some
properties of quantum particles are not just unknown before they are measured, but fundamentally do not exist in a definitive state prior to the act
of measurement,» he says.
TAKING MEASURE New units based on fundamental
properties of the universe will make
measurements more precise.
The exact size
of RR245 is not yet exactly known, as its surface
properties need further
measurement.
Previously, the most precise
measurement of the constant was indirect, relying on a
measurement of the electron's magnetic
properties and using complex theoretical calculations to infer the constant's value.
•
Measurement of water absorption and transport
properties of fabrics under different sweating levels
In particle physics, the discovery
of the Higgs boson and
measurements of its
properties give equally compelling evidence that their «standard model»
of elementary particles and force - generating symmetries explains everything it's supposed to.
Quantum effects give rise to some
of the most useful and promising
properties of materials: they define standard units
of measurement, give rise to superconductivity, and describe quantum computers.
Using a variety
of geophysics
measurements and laboratory experiments, researchers are capable
of gaining some degree
of insight into material
properties under certain pressure conditions without actually being able to make direct observations.
Outfitted with specialised instruments, the buoy functions as an unmanned research platform for continuous
measurements of solar radiation absorption and other critical
properties of Arctic snow and ice.
Researchers from Norway and China have collaborated on developing an autonomous buoy with instruments that can more precisely measure the optical
properties of Arctic sea ice while also taking
measurements of ice thickness and temperature.
The
measurements give information on how «squishy» the soil is at any given point, making it possible to infer a great deal
of information about the soil
properties, such as its water content or texture.
Histological
measurements revealed that specific arrangements
of reflective guanine platelets in the fish's skin produce angle - dependent polarization modifications for polarocrypsis in the open ocean, suggesting a mechanism for natural selection to shape reflectance
properties in this complex environment.
Published in ACS Nano, a journal
of the American Chemical Society, the study coupled atomic - scale characterization and electrical
property measurements with theory - based simulation.
By combining data from two high - energy accelerators, nuclear scientists have refined the
measurement of a remarkable
property of exotic matter known as quark - gluon plasma.
Aalto University researchers have developed a
measurement technique called Scanning Droplet Adhesion Microscopy (SDAM) to understand and characterize the wetting
properties of superhydrophobic materials.
Capture
of all the transmitted electrons allows quantitative
measurement of materials
properties, such as internal electric and magnetic fields, which are important for use
of the materials in memory and electronics applications.
The approach taken by the JET Collaboration to achieve it, by combining efforts
of several groups
of theorists and experimentalists, shows how to make other precise
measurements of properties of the quark gluon plasma in the future.»
Measurements at CERN, most recently by the BASE experiment (link is external), have already compared the same
properties of protons and antiprotons to high precision.
In a paper published in Annals
of Physics in January, the researchers propose two main ingredients that are sufficient to account for all
properties of quantum
measurements, including the uniqueness
of the outcome
of each individual run.
The constants c, e, and h are entangled with one another in a tight web
of interconnections that spans the microworld, in the sense that all
measurements of atomic and nuclear
properties must ultimately be expressed in terms
of these and a small handful
of other numbers.
To perform the teleportation, Alice takes advantage
of one more strange
property of quantum mechanics: that
measurement not only reveals something about a system, it also changes its state.
The study, published April 10, 2017 in the Proceedings
of the National Academy
of Sciences, combined
measurements of fin shape from hundreds
of specimens
of the Labridae family with fin mechanical
properties and neural responses recorded from eight different Labrid species, commonly known as wrasses.
Budimirovic says the current study updated the 2013 recommendations by using a more systematic approach that classified existing outcome measures as either being able to detect shorter - term changes (measures in FXS placebo - controlled trials lasting less than 12 months) or longer - term changes (lasting longer than 12 months) changes and by grading the measures» quantitative
properties using the COnsensus - based Standards for the selection
of health
Measurement Instruments (COSMIN) system, an initiative that aims to improve how health measurement tools ar
Measurement Instruments (COSMIN) system, an initiative that aims to improve how health
measurement tools ar
measurement tools are selected.
Having three detectors also enables researchers to make a rough
measurement of the wave's polarization — a
property that indicates how the black holes» orbital plane (the plane on which they rotate around each other) is orientated with respect to Earth.
Philipp Hauke and Peter Zoller from the Department
of Theoretical Physics at the University
of Innsbruck and the Institute for Quantum Optics and Quantum Information (IQOQI) at the Austrian Academy
of Sciences in collaboration with Markus Heyl from the Technical University
of Munich, and Luca Tagliacozzo from ICFO — The Institute
of Photonic Sciences have found a new way to detect certain
properties of many - particle entanglement independent
of the size
of the system and by using standard
measurement tools.
«With this method in hand, we're able to show that time - resolved
measurements of elastic
properties on dynamic materials are possible on short timescales.»
The researchers used a combination
of advanced electronic structure calculations, magnetic
property measurements, and revolving scanning transmission electron microscopy (revolving STEM) to see what was happening at the atomic scale in NiFeCrCo.
These
measurements were key to discovering the elusive
properties of the dust.
So, for example, by measuring
properties of the dark energy, we can learn whether Lawrence is right or wrong, and those
measurements are going to be taken over the next decade.
All the team's proposed tests hinged on being able to make
measurements of the quantum system at some intermediate time; but the physics books said that doing so would destroy the quantum
properties of the system before the final, postselection step could be carried out.