The importance of correcting for health-related survey non-response when estimating health expectancies: Evidence from The HUNT Study [PDF]
Demographic ResearchBACKGROUND: Most studies on health expectancies rely on self-reported health from surveys to measure the prevalence of disabilities or ill health in a population.
Fred Schroyen
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Handling Attrition in Longitudinal Studies: The Case for Refreshment Samples [PDF]
, 2013 Panel studies typically suffer from attrition, which reduces sample size and can result in biased inferences. It is impossible to know whether or not the attrition causes bias from the observed panel data alone.
Deng, Yiting +4 more
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Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source
Dental attrition in a South Indian skull
Australasian Orthodontic Journal, 1990 The skull of a twentieth-century man presented by chance and was recognised as an example of attritional occlusion. It was photographed and x-rayed and seemed to be a worthy supplement to Begg’s classic work.
Scheck Samuel
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Modification of Mantle Cargo by Turbulent Ascent of Kimberlite
Frontiers in Earth Science, 2019 Kimberlite magmas transport cratonic mantle xenoliths and diamonds to the Earth's surface. However, the mechanisms supporting the successful and efficient ascent of these cargo-laden magmas remains enigmatic due to the absence of historic eruptions ...
Thomas J. Jones +2 more
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Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
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Attrition of Households and Individuals in Panel Surveys [PDF]
Attrition is mostly caused by not contacted or refusing sample members. On one hand it is well-known that reasons to attrite due to non-contact are different from those that are due to refusal.
Oliver Lipps
core
Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger +2 more
wiley +1 more source
Cross-Country Income Mobility Comparisons Under Panel Attrition: The Relevance of Weighting Schemes [PDF]
This paper aims to present an assessment of the effects of panel attrition on income mobility comparisons for some EU-countries by using the European Community Household Panel (ECHP).
Carolina Navarro +2 more
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Capturing "attrition intensifying" structural traits from didactic interaction sequences of MOOC learners [PDF]
, 2014 This work is an attempt to discover hidden structural configurations in learning activity sequences of students in Massive Open Online Courses (MOOCs). Leveraging combined representations of video clickstream interactions and forum activities, we seek to
Dillenbourg, Pierre +3 more
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