Results 1 to 10 of about 4,863,072 (283)

"Si Mis Papas Estuvieran Aquí": Unaccompanied Youth Workers' Emergent Frame of Reference and Health in the United States. [PDF]

open access: yesJ Health Soc Behav, 2023
Relying on in-depth interviews and ethnographic data in Los Angeles, California, this study examines the health experiences of unaccompanied, undocumented Latin American-origin immigrant youth as they come of age as low-wage workers. Findings demonstrate
Canizales SL.
europepmc   +2 more sources

Disparity Indices and Overweight: Frame of Reference [PDF]

open access: yesHealth Equity, 2019
Purpose: The purpose of this study was to compare state rankings of body mass index (BMI) among three different indices of income disparities (i.e., low-, middle-, and high-income thresholds) and BMI.
Wendell C. Taylor   +2 more
doaj   +2 more sources

Microarcsecond instability of the celestial reference frame [PDF]

open access: bronze, 1998
The fluctuation of the angular positions of reference extragalactic radio and optical sources under the influence of the irregular gravitational field of visible Galactic stars is considered.
M. V. Sazhin   +3 more
openalex   +5 more sources

Impact of the terrestrial reference frame on the determination of the celestial reference frame

open access: yesGeodesy and Geodynamics, 2019
Currently three up-to-date Terrestrial Reference Frames (TRF) are available, the ITRF2014 from IGN, the DTRF2014 from DGFI-TUM, and JTRF2014 from JPL. All use the identical input data of space-geodetic station positions and Earth orientation parameters ...
Maria Karbon   +2 more
doaj   +4 more sources

The Absolute Frame of Reference [PDF]

open access: yesSSRN Electronic Journal, 2020
The manuscript found the formula to calculate the real velocity of the earth and the maximum velocity in the universe, the values of the quantities after calculation as follows:V_earth = 1.852819296∗10^8 m/s.C_max = 4.8507438399∗10^8 m/s.In order to calculate the above results, the manuscript has built a reference frame transformation suitable for ...
Khac Son, Ninh
openaire   +5 more sources

Dynamics of a quantum reference frame [PDF]

open access: yesNew Journal of Physics, 2007
We analyze a quantum mechanical gyroscope which is modeled as a large spin and used as a reference against which to measure the angular momenta of spin-1/2 particles. These measurements induce a back-action on the reference which is the central focus of our study.
Poulin, David, Yard, Jon
openaire   +8 more sources

A two-point boundary value problem on a Lorentz manifold arising in A. Poltorak's concept of reference frame [PDF]

open access: yes, 2006
In A. Poltorak's concept, the reference frame in General Relativity is a certain manifold equipped with a connection. The question under consideration here is whether it is possible to join two events in the space-time by a time-like geodesic if they are joined by a geodesic of the reference frame connection that has a time-like initial vector.
Gliklikh Yu.E   +5 more
arxiv   +4 more sources

Insight into Others’ Minds: Spatio-Temporal Representations by Intrinsic Frame of Reference [PDF]

open access: yesFrontiers in Human Neuroscience, 2014
Recent research has seen a growing interest in connections between domains of spatial and social cognition. Much evidence indicates that processes of representing space in distinct frames of reference (FOR) contribute to basic spatial abilities as well ...
Yanlong eSun, Hongbin eWang
doaj   +2 more sources

Regular Formal Evaluation Sessions are Effective as Frame-of-Reference Training for Faculty Evaluators of Clerkship Medical Students. [PDF]

open access: yesJ Gen Intern Med, 2015
Hemmer PA   +8 more
europepmc   +2 more sources

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