2,726 research outputs found
Aggregated dynamic demand equations for specialistic-outpatient medical care:(Estimated from a time-series of cross-sections)
In this paper a dynamic model is presented which describes the development of the demand for specialistic medical care in The Netherlands, during the period 1960-1972. The "regionally correlated, time-wise auto-regressive" model is consistently estimated from a time-series of cross-sections, using a modified Aitken estimator. The dependent variables are the number of publicly insured patients referred from general care to specialistic care, and the amount of care consumed per patient referred. As independent variables we took demographic factors, the supply of different levels of medical care and the insurance system. The estimation results show a.o. important substitution possibilities between general and specialistic care, and a significant influence of supply and supply-related variables on the demand for specialistic care.</p
Sharing a Top Manager’s Experience with the Next Generation: The Use of Electronic Discussions and Short Video Fragments in Teaching
In: A.J. Kallenberg and M.J.J.M. van de Ven (Eds), 2002, The New Educational Benefits of ICT in Higher Education: Proceedings. Rotterdam: Erasmus Plus BV, OECR
ISBN 90-9016127-9This paper presents an effective educational method to transfer managerial knowledge to students. This method consists among other of online discussions between small groups of students and video clips of lectures. The set-up of the course and the ICT-tool used in the course were evaluated for two years through a questionnaire among the students. The results show that the applied e-learning concept is highly appreciated and serves as an effective tool to exchange knowledge
Are tearful individuals perceived as less competent? Probably not
What are the social signals of emotional tears? This question has fascinated scholars ever since Darwin. Studies have suggested several interpersonal effects of emotional tears. A recent study by Van de Ven, Meijs, and Vingerhoets (2017) presented evidence in three studies that tearful individuals are perceived as warmer, but also less competent than their non-tearful counterparts. However, the competence effect was relatively small, and a recent replication failed to find such an effect in two different populations while the warmth effect was replicated (Zickfeld & Schubert, 2018). This questions the generalizability of the effect of tears on perceived competence. To test whether individuals expressing emotional tears are really perceived as less competent and what boundary conditions such an effect might have, we specified a decision tree of three different studies in which we test differences between the original reference study and the replication. We replicated previous findings of the perceived (in)competence in Study 1 (n = 531) but observed a considerably smaller non-significant effect when proceeding to Study 2 (n = 471), which increased the number of stimuli. The earlier and now repeated replication failure can therefore likely be attributed to an increased variation in stimulus material. We conclude that there is not enough evidence to argue that one social outcome of tears signals a relative lack of competence as the effect seems to depend on the specific stimuli used.info:eu-repo/semantics/acceptedVersio
Which assessment tools address the categories of the Brief ICF Core Set for Hand Conditions?
Introduction
The purpose of this study was to explore whether assessment tools address aspects that are relevant according to the Brief ICF Core Set for Hand Conditions (BICF-CS).
Methods
Assessment tools meant to assess functioning and/or environmental factors in adults with hand conditions were reviewed. MEDLINE and CINAHL databases, previously published reviews, the book Clinical Assessment Recommendations of the ASHT, and websites of assessment tools were used for the content comparison and linking to the 23 categories of the BICF-CS. The updated version of the linking rules was applied by two reviewers.
Results
Forty-six assessment tools, known within the areas of hand therapy and hand surgery, were linked to the 23 categories of the BICF-CS. Regarding Body functions and body structures, the categories that were most frequently addressed were b730 “Muscle power functions,” b280 “Sensation of pain,” b710 “Mobility of joint functions,” and s730 “Structure of upper extremity.” Regarding Activities and Participation, d440 “Fine hand use” was addressed mostly and 25 assessment tools (with a total of 146 items) were linked to this category. Regarding Environmental Factors, only one assessment tool was identified that could be linked to two categories. Fifteen points of discussion were encountered in the linking process.
Conclusions
Content comparison of 46 assessment tools revealed that 19 of the 23 categories of the BICF-CS were addressed. The environmental factors were hardly addressed
R&D partnership portfolios and the inflow of technological knowledge
This article links research on parallel search and joint R&D to contribute a portfolio perspective to the study of knowledge flows within interfirm R&D partnerships. In a longitudinal analysis of firms engaged in R&D partnerships relating to information technology between 1975 and 1999, we show that the size of a firm's R&D partnership portfolio and its share of novel partners both have an inverted U-shaped effect on the inflow of technological knowledge from the firm's R&D partners. We also show how these direct effects vary as a function of the level of technological uncertainty within the portfolio
A SAURON view of galaxies
We have measured the two-dimensional kinematics and line-strength
distributions of 72 representative nearby early-type galaxies, out to
approximately one effective radius, with our panoramic integral-field
spectrograph SAURON. The resulting maps reveal a rich variety in kinematical
structures and linestrength distributions, indicating that early-type galaxies
are more complex systems than often assumed. We are building detailed dynamical
models for these galaxies, to derive their intrinsic shape and dynamical
structure, and to determine the mass of the supermassive central black hole.
Here we focus on two examples, the compact elliptical M32 and the E3 galaxy
NGC4365. These objects represent two extreme cases: M32 has very regular
kinematics which can be represented accurately by an axisymmetric model in
which all stars rotate around the short axis, while NGC4365 is a triaxial
galaxy with a prominent kinematically decoupled core, with an inner core that
rotates about an axis that is nearly perpendicular to the rotation axis of the
main body of the galaxy. Our dynamical models for these objects demonstrate
that two-dimensional observations are essential for deriving the intrinsic
orbital structure and dark matter content of galaxies.Comment: 7 pages (3 figures, full resolution Fig. 1 available at
http://www.strw.leidenuniv.nl/~verolme/M32.ps). Contributed talk to the
Athens Workshop on Galaxies and Chaos, Theory and Observations; Proceedings
to appear in "Galaxies and Chaos", eds. G. Contopoulos and N. Vogli
Populating the galaxy velocity dispersion - supermassive black hole mass diagram: A catalogue of (M_bh, sigma) values
An updated catalogue of 76 galaxies with direct supermassive black hole mass
measurements (M_bh) plus, when available, their host bulge's central velocity
dispersion (sigma_0) is provided. Fifty of these mass measurements are
considered reliable, while the others remain somewhat uncertain at this time.
An additional eight stellar systems, including one stellar cluster and three
globular clusters, are listed as hosting potential intermediate mass black
holes < 10^6 M_solar.
With this larger data set, the demographics within the M_bh-sigma_0 diagram
are briefly explored. Many barred galaxies are shown to be offset from the
M_bh-sigma_0 relation defined by the non-barred galaxies, in the sense that
their velocity dispersions are too high. Furthermore, including 88 AGN with
black hole mass estimates from reverberation mapping studies, we speculate that
barred AGN may follow this same general trend. We also show that some AGN with
sigma_0 < 100 km/s tend to reside up to 0.6 dex above the "barless"
M_bh-sigma_0 relation. Finally, it is shown that ``core galaxies'' appear not
to define an additional subdivision of the M_bh-sigma_0 diagram, although
improved methods for measuring sigma_0-values will be valuable.Comment: To appear in PASA, accepted on the 4th of July, 200
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