Results 21 to 30 of about 148 (92)

Appropriate Methodology of Statistical Tests According to Prior Probability and Required Objectivity [PDF]

open access: yes, 2011
In contrast to its common definition and calculation, interpretation of p-values diverges among statisticians. Since p-value is the basis of various methodologies, this divergence has led to a variety of test methodologies and evaluations of test results.
Konishi, Tomokazu
core   +3 more sources

Item Response Modeling of Multivariate Count Data With Zero Inflation, Maximum Inflation, and Heaping [PDF]

open access: yes, 2017
Questionnaires that include items eliciting count responses are becoming increasingly common in psychology. This study proposes methodological techniques to overcome some of the challenges associated with analyzing multivariate item response data that ...
Brooke E. Magnus   +5 more
core   +2 more sources

A pilot study of magnetic resonance fingerprinting in Parkinson's disease

open access: yesNMR in Biomedicine, Volume 33, Issue 11, November 2020., 2020
Magnetic resonance fingerprinting (MRF)‐based T1 and T2 mapping can help identify Parkinson's disease patients based on regional relaxation time, but differs from standard mapping results. Disease severity could not be associated with relaxation times. T1 relaxation times differed most in cortical grey matter rather than in the basal ganglia. Parkinson'
Vera Catharina Keil   +10 more
wiley   +1 more source

Differential-mode EMI reduction in a multiphase DCM flyback converter [PDF]

open access: yes, 2009
Switched converters are a source of electromagnetic interference (EMI) due to the hard switching and abrupt edges in the current and voltage waveforms.
Cobos Márquez, José Antonio   +3 more
core   +2 more sources

Follow-up Imaging of Disk Candidates from the Disk Detective Citizen Science Project: New Discoveries and False Positives in WISE Circumstellar Disk Surveys [PDF]

open access: yes, 2018
The Disk Detective citizen science project aims to find new stars with excess 22 m emission from circumstellar dust in the All WISE data release from the Wide-field Infrared Survey Explorer.
Bans, Alissa S.   +19 more
core   +4 more sources

Epidemiology of simultaneous medullary and papillary thyroid carcinomas (MTC/PTC): An Italian multicenter study [PDF]

open access: yes, 2019
Background: The concomitant presence of papillary thyroid cancer (PTC) and medullary TC (MTC) is rare. In this multicentric study, we documented the epidemiological characteristics, disease conditions and clinical outcome of patients with simultaneous ...
Appetecchia, M.   +8 more
core   +1 more source

An Analysis of a Heuristic Procedure to Evaluate Tail (in)dependence

open access: yesJournal of Probability and Statistics, Volume 2014, Issue 1, 2014., 2014
Measuring tail dependence is an important issue in many applied sciences in order to quantify the risk of simultaneous extreme events. A usual measure is given by the tail dependence coefficient. The characteristics of events behave quite differently as these become more extreme, whereas we are in the class of asymptotic dependence or in the class of ...
Marta Ferreira   +2 more
wiley   +1 more source

Characterization of Phase and Emulsion Behavior, Surfactant Retention, and Oil Recovery for Novel Alcohol Ethoxycarboxylate Surfactants [PDF]

open access: yes, 1998
This semi-annual technical progress report describes work performed at Clark Atlanta University under DOE Grant No. DE-FG26-97FT97278 during the period October 01, 1997 to April 01, 1998 which covers the first six months of the project.
Moeti, Lebone T., Sampath, Ramanathan
core   +3 more sources

Revisiting convergence and divergence: support for older people in Europe [PDF]

open access: yes, 2004
Recent commentators have distinguished ‘weak’ from ‘strong’ family societies, arguing that older people in less family-oriented societies receive less support from family members than those in countries with strong family ties (e.g.
Cecilia Tomassini   +16 more
core   +1 more source

Highly Accurate Timestamping for Ethernet‐Based Clock Synchronization

open access: yesJournal of Computer Networks and Communications, Volume 2012, Issue 1, 2012., 2012
It is not only for test and measurement of great importance to synchronize clocks of networked devices to timely coordinate data acquisition. In this context the seek for high accuracy in Ethernet‐based clock synchronization has been significantly supported by enhancements to the Network Time Protocol (NTP) and the introduction of the Precision Time ...
Patrick Loschmidt   +3 more
wiley   +1 more source

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