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341.
The OECD social indicators for 2001 were critically reviewed by analysing their interrelationships across all OECD countries during the late 1990s. First, findings were provided covering the underlying structure of subsets of indicators by similarity in content as suggested by the OECD. Second, an analysis of the selected key indicators yielded five social dimensions, which were interpretedas conceptual constructs underlying the set of OECDsocial indicators at the level of the entire OECD area. Third, the relationships of each indicator withthese social dimensions were observed to aid choosing of appropriate indicators for making and evaluating social policies. Fourth, the OECDcountries were ranked according to their overall social welfare, as defined by the OECD social indicators, basedon the scores of the countries on the social dimensions. Fifth, similarities among the OECD countries were examined and it was found that the countries formed six bipolar country dimensions. The findings showed that an easily interpretable structure underlies the OECD social indicators. The paper clarified the use of the OECD social indicators for 2001 as a tool for planning and decision-making and for cross-national analyses of social policies. 相似文献
342.
343.
Antonio?J.?Rojas?TejadaEmail author Oscar?M.?Lozano?Rojas 《Social indicators research》2005,74(2):369-394
Background: The Item Response Theory (IRT) has advantages for measuring Health Related Quality of Life (HRQOL) as opposed to the Classical
Tests Theory (CTT). Objectives: To present the results of the application of a polytomous model based on IRT, specifically, the Rating Scale Model (RSM),
to measure HRQOL with the EORTC QLQ-C30. Methods: 103 terminal cancer patients cared for by the home services of the Servicio Andaluz de Salud (Andalusian Health Service)
(Andalusia, Spain) participated. These patients responded to the adapted Spanish version of the EORTC QLQ-C30. The application
was carried out individually in the patients’ homes. Results: The results show that there is an adequate global fit between the data and the IRT model applied. The analysis of the items
shows that for 31 of the 33 items there is a good fit. The items which measure the general perception of health and the perception
of quality of life present a lack of fit. The study of the response categories of the items (by means of Category Probability
Curves) indicates that all the alternatives work extremely well. Conclusions:The EORTC QLQ-C30 presents good metric qualities, under the RSM, ratifying the feasibility to measure HRQOL already shown
in other studies carried out with CTT. 相似文献
344.
Thomas Corneli?en 《Social indicators research》2004,67(3):377-377
Authors Index
Index of Authors Volume 67, 2004 相似文献345.
Sh?ichi F. Sakagami Kazuo Hoshikawa Hiromi Fukuda 《Researches on Population Ecology》1984,26(2):363-378
Summary Overwintering of two social halictine bees,Lasioglossum duplex (Dalla Torre) andL. problematicum (Blüthgen), was studied. InL. duplex many females stay near the old nests, each female preparing a hibernaculum separated from the natal nest. InL. problematicum most females overwinter communally within the natal nest. This difference in overwintering habits relates to the social structure
in the next spring.L. duplex is nearly always solitary in spring although later becoming eusocial, whereas many nests ofL. problematicum are polygynous, beginning in early spring.L. duplex overwinters much deeper (
) in the soil than doesL. problematicum (
), but both species are safe from drops in soil temperature, which is above 0°C even in midwinter, and the bees' supercooling
points are lower than −6°C. This cold resistance and the storage of sufficient food in the crop are reflected in the winter
survival, which is much higher (79%) than the rate of successful nests in the spring active phase (25%).
Bionomics of the eusocial halictine beeLasioglossum duplex VII.
Contribution No. 2654 from the Inst. Low Temp. Sci. 相似文献
346.
A generalization of Macula’s disjunct matrices 总被引:1,自引:0,他引:1
Ping?Zhao Kefeng?Diao Kaishun?WangEmail author 《Journal of Combinatorial Optimization》2011,22(4):495-498
As a generalization of the novel construction of disjunct matrices by Macula (Discrete Math. 162:311–312, 1996), we construct a new family of disjunct matrices and discuss its error-tolerant property. 相似文献
347.
In this paper we consider a semi-online scheduling problem with rejection on two uniform machines with speed 1 and s≥1, respectively. A sequence of independent jobs are given and each job is characterized by its size (processing time) and
its penalty, in the sense that, jobs arrive one by one and can be either rejected by paying a certain penalty or assigned
to some machine. No preemption is allowed. The objective is to minimize the sum of the makespan of schedule, which is yielded
by all accepted jobs and the total penalties of all rejected ones. Further, two rejection strategies are permitted thus an
algorithm can propose two different schemes, from which the better solution is chosen. For the above version, we present an
optimal semi-online algorithm H that achieves a competitive ratio ρ
H
(s) as a piecewise function in terms of the speed ratio s. 相似文献
348.
Prof. Dr. Ralf Diedrich Prof. Dr. Stefan Dierkes Dr. Hans-Christian Gr?ger 《Zeitschrift für Betriebswirtschaft》2011,81(6):657-675
Drukarczyk and Lobe argue that the value of a company depends on individual preferences for leveraged or unleveraged companies if debt and credit interest rates after personal taxes differ. Consequentially they derive two preference-dependent valuation formulas. Based on these results an increasing amount of literature proposing preference-dependent valuation formulas emerged. We claim that this has to be viewed critically. In order to show that even in a world of different debt and credit interest rates after personal taxes a market value can be determined we develop a new version of the Tax CAPM. Based on this model the market value of leveraged and unleveraged companies is derived. Finally we show that the corresponding valuation function significantly differs from the preference-dependent valuation formulas. 相似文献
349.
350.
Evidence-based practice depends in part on knowledge derived from relevant research. For any given topic, there are likely
to be many, potentially relevant studies; a careful appraisal and synthesis of the results of these studies is needed to understand
the state of the empirical evidence. Meta-analysis is widely used to combine results of quantitative studies; yet this method
is unfamiliar to many people and, as a result, meta-analyses are often uncritically accepted. In this article, we argue that
meta-analysis is only one component of a good research synthesis. We critique a recent metaanalysis on the effectiveness of
long-term psychodynamic psychotherapy, showing that this metaanalysis failed to meet current standards for the conduct and
reporting of systematic research reviews and meta-analyses. We demonstrate the use of AMSTAR, a straightforward tool for assessing
the quality of systematic reviews and meta-analyses. 相似文献