154 research outputs found
A Layered Notch filter for High- Frequency Dynamic Isolation
An efficient method of isolation from high-frequency vibrations i
The evaluation of (social-)psychological comfort in clothing, a possible approach
This paper presents the first results of a PhD research on psychological comfort of
clothing. In order to understand and conceptualize the psychological aspects of clothing
comfort, a variation of the Delphi Method was used to seek opinions from experts. This
method was chosen because of its consensus-building features. The results were obtained from
a qualitative text analysis, conducted over the expertsâ responses to the first round of questions.
The analytic process shed some light on the formation of the psychological comfort concept as
well as the potential attributes to be evaluated when assessing this comfort dimension.This work is supported by FEDER funds through the Competitivity Factors Operational Programme -
COMPETE and by national funds through FCT â Foundation for Science and Technology within the
scope of the project POCI-01-0145-FEDER-007136.
The first author would also like to gratefully acknowledge the support from the Araucaria Foundation
of ParanĂĄ State and the Federal University of Technology, specially, the Fashion Design Department
and the Office of Research and Graduate Studies.info:eu-repo/semantics/publishedVersio
How Well Do We (and Will We) Know Solar Neutrino Fluxes and Oscillation Parameters?
Assuming neutrino oscillations occur, the pp electron neutrino flux is
uncertain by at least a factor of two, the flux by a factor of
five, and the flux by a factor of forty-five. Calculations of the
expected results of future solar neutrino experiments (SuperKamiokande, SNO,
BOREXINO, ICARUS, HELLAZ, and HERON) are used to illustrate the extent to which
these experiments will restrict the range of the allowed neutrino mixing
parameters. We present an improved formulation of the ``luminosity constraint''
and show that at 95\% confidence limit this constraint establishes the best
available limits on the rate of creation of pp neutrinos in the solar interior
and provides the best upper limit to the neutrino flux.Comment: 37 pages, uuencoded Z-compressed postscript file (with figures);
Submitted to Physical Review
Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande
A search for day-night variations in the solar neutrino flux resulting from
neutrino oscillations has been carried out using the 504 day sample of solar
neutrino data obtained at Super-Kamiokande. The absence of a significant
day-night variation has set an absolute flux independent exclusion region in
the two neutrino oscillation parameter space.Comment: 11 pages, 3 figures, submitted to PRL, single-spacin
A decade of theory as reflected in Psychological Science (2009â2019)
The dominant belief is that science progresses by testing theories and moving towards theoretical consensus. While itâs implicitly assumed that psychology operates in this manner, critical discussions claim that the field suffers from a lack of cumulative theory. To examine this paradox, we analysed research published in Psychological Science from 2009â2019 (N = 2,225). We found mention of 359 theories in-text, most were referred to only once. Only 53.66% of all manuscripts included the word theory, and only 15.33% explicitly claimed to test predictions derived from theories. We interpret this to suggest that the majority of research published in this flagship journal is not driven by theory, nor can it be contributing to cumulative theory building. These data provide insight into the kinds of research psychologists are conducting and raises questions about the role of theory in the psychological sciences
Solar Neutrinos and the Principle of Equivalence
We study the proposed solution of the solar neutrino problem which requires a
flavor nondiagonal coupling of neutrinos to gravity. We adopt a
phenomenological point of view and investigate the consequences of the
hypothesis that the neutrino weak interaction eigenstates are linear
combinations of the gravitational eigenstates which have slightly different
couplings to gravity, and , , corresponding to a
difference in red-shift between electron and muon neutrinos, . We perform a analysis of the latest available solar
neutrino data and obtain the allowed regions in the space of the relevant
parameters. The existing data rule out most of the parameter space which can be
probed in solar neutrino experiments, allowing only for small values of the mixing angle () and for large mixing (). Measurements of the -neutrino energy spectrum in the SNO and
Super-Kamiokande experiments will provide stronger constraints independent of
all considerations related to solar models. We show that these measurements
will be able to exclude part of the allowed region as well as to distinguish
between conventional oscillations and oscillations due to the violation of the
equivalence principle.Comment: 20 pages + 4 figures, IASSNS-AST 94/5
Standardising Clinical Caremaps: Model, Method and Graphical Notation for Caremap Specification
Standardising care can improve patient safety and outcomes, and reduce the cost of providing healthcare services. Caremaps were developed to standardise care, but contemporary caremaps are not standardised. Confusion persists in terms of terminology, structure, content and development process. Unlike existing methods in the literature, the approach, model and notation presented in this chapter pays special attention to incorporation of clinical decision points as first-class citizens within the modelling process. The resulting caremap with decision points is evaluated through creation of a caremap for women with gestational diabetes mellitus. The proposed method was found to be an effective way for comprehensively specifying all features of caremaps in a standardised way that can be easily understood by clinicians. This chapter contributes a new standardised method, model and notation for caremap content, structure and development
Key components of learning ecologies: a Delphi assessment
This is the accepted version of the following article: GonzĂĄlezâSanmamed, M. , MuñozâCarril, P. and SantosâCaamaño, F. (2019), Key components of learning ecologies: A Delphi assessment. Br J Educ Technol, 50: 1639-1655, which has been published in final form at https://doi.org/10.1111/bjet.12805. This article may be used for
non-commercial purposes in accordance with the Wiley Self-Archiving Policy (http://www.wileyauthors.com/self-archiving)The educational landscape has changed in recent years, requiring reflection about new pedagogical methods and theories. There are three important perspectives as drivers of pedagogical reflection: lifelong and lifeâwide learning, the idea of learning as a social construct in which internal elements and changing external factors converge, and the recognition of technology as a resource that can promote ubiquitous and expanded learning. Learning ecology has been proposed as a conceptual and empirical framework, but its still emergent nature along with its multidimensionality and complexity require further exploration. The Delphi study we present as part of a broader research project aims to identify the components of learning ecologies. Three panel rounds with international experts were carried out, after which two important dimensions emerged in the structure of learning ecologies. The first is related to intrinsic âlearning dispositions,â which is made up of three categories: the subject's ideas about learning, their motivations and expectations. The second dimension, called âlearning processes,â comprises four components: relationships, resources, actions and context. The identification of the components of learning ecologies and their influence on formal, nonâformal and informal training processes will provide guidance for educational policies and help to better organize training programmesWe thank the Spanish Ministry of Economy and Competitiveness for their support of our study under a research project entitled âHow the best University Teachers Learn: Impact on Learning Ecologies on Quality of Teachingâ (ECO4LEARNâHE) (Reference: EDU2015â67907âR)S
Where do we stand with solar neutrino oscillations?
We determine the neutrino parameters for MSW and vacuum oscillations (active
and sterile neutrinos) that are allowed by the separate, and collective,
imposition of the constraints from total event rates in the chlorine, GALLEX,
SAGE, and SuperKamiokande experiments (504 days), the SuperKamiokande electron
energy spectrum, and the SuperKamiokande zenith-angle dependence. The small
mixing angle MSW solution is acceptable at the 7% C.L. (8% for sterile nu's)
and the vacuum solution is acceptable at the 6% C.L. . The best-fit global MSW
solution for active neutrinos is: Delta m^2 = 5 x 10^-6 eV^2, sin^2 (2 theta) =
5.5 x 10^{-3} (and for sterile neutrinos: Delta m^2 = 4 x 10^-6 eV^2, sin^2 (2
theta) = 7 x 10^-3). For vacuum oscillations, the best-fit solution is: Delta
m^2 = 6.5 x 10^-11 eV^2, sin^2 (2 theta) = 0.75 . An arbitrary combination of
undistorted (no oscillations) pp, 7Be, 8B, and CNO neutrino fluxes is
inconsistent with the combined data sets at the 3.5 sigma C.L., independent of
astrophysical considerations. We use improved calculations of solar model
fluxes, neutrino absorption cross sections and energy spectra, and a detailed
evaluation of regeneration effects.Comment: LaTeX file. Added Figure comparing with SuperK spectrum. Predictions
for LENS experiment. Viewgraphs and related information at
http://www.sns.ias.edu/~jn
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