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141.
In this response to Stern's (2005) (see reocord 2005-16136-010) discussion of Klugkist, Laudy, and Hoijtink (2005), model inference based on posterior probabilities on the parameter space is discussed. Furthermore, the authors respond to Stern's example in which all possible orderings are included via a short discussion of exploratory versus theory-based modeling. Finally, the authors show that the Bayesian approach is flexible and can deal with many types of constraints. This is illustrated using a model with constraints on the differences between means. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
142.
Leigh Irene W.; Smith I. Leon; Bebeau Muriel J.; Lichtenberg James W.; Nelson Paul D.; Portnoy Sanford; Rubin Nancy J.; Kaslow Nadine J. 《Canadian Metallurgical Quarterly》2007,38(5):463
This article describes characteristics of alternative assessment models deployed in the measurement of professional competencies across the professional life span based on the work of the American Psychological Association Task Force on the Assessment of Competence in Professional Psychology. Assessments of knowledge, decision making, performance and personal attributes, as well as integrated practice-based skills and tasks are described and compared on the basis of their validity, feasibility and practicality, fidelity, and relevance at difference stages of professional development. It is acknowledged that no single assessment can evaluate all competencies and that assessments can be combined in complementary ways. Assessments deployed in the nursing, dental, and medical professions are reviewed and contrasted with current practices in psychology. At the licensure level, differences in the assessments deployed among the 4 healthcare professions are described, and their candidate fees and number of candidates assessed annually are documented. Ideas for developing new assessments in psychology are discussed on the basis of the needs and financial resources available to psychology and the experiences of other healthcare professions. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
143.
The present study aimed to assess the effects of aging and awareness on conditional discrimination learning within an eyeblink conditioning procedure by using a consecutive age-groups design (20-35 years, 36-50 years, 51-65 years, 66-80 years). Increasing age was associated with a decline in overall eyeblink conditioned response (CR) frequency and a deficit in conditional discrimination learning in the 2 older groups. Awareness of stimulus contingencies affected discrimination performance but not overall CR rates in younger subjects. Older subjects did not achieve eyeblink conditional discrimination learning, regardless of awareness. Discrimination performance correlated with measures of declarative memory. The pattern of results is discussed with respect to the involvement of hippocampal-cerebellar interactions and awareness in the mediation of age-related conditioning changes. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
144.
145.
Iñigo Arozarena Belén Ayestarán María Cantalejo Montserrat Navarro Marta Vera Irene Abril Ana Casp 《European Food Research and Technology》2002,214(4):303-309
The anthocyanin composition of Tempranillo, Garnacha and Cabernet Sauvignon grapes over two vintages was studied. Samples were obtained during berry ripening from two vineyards that differed by producing fruit of high and low quality. The proportions of the individual compounds remained practically constant within a single vineyard along the sampling period, the changes in the anthocyanin composition being principally quantitative. Different multivariate statistical methods showed that the anthocyanin profile was primarily determined by variety. This genetic dependence was particularly verified when the sums of the non-acylated glucosides, the acetates and the p-coumaryl derivatives, were analysed. The mean relative content corresponding to these three anthocyanin fractions was always the same within each variety, independently either of the vineyard or the vintage year considered. Relating to the individual compounds, several permanent qualitative differences between vineyards in each variety were also found, although the difference in the total anthocyanin concentration was always much higher. 相似文献
146.
Analysis of the polar extracts from kancolla seeds led to the isolation of five betaines: glycine betaine, trigonelline, trigonelline methylester, trigonelline glucosylester and 3-carboxy-1-(2-sulfoethyl)-pyridinium, the last two of which have not previously been reported in the literature. All structures were elucidated from spectroscopic [NMR (1H, 13C, COSY, HOHAHA, HMQC, HMBC)] and mass spectrometric data (ESI-MS). 相似文献
147.
Manuele Dabalà Irene Calliari Alessandra Variola 《Journal of Materials Engineering and Performance》2004,13(2):237-240
Super duplex stainless steels (SDSS) have been widely used as structural materials for chemical plants (especially in those
engaged in phosphoric acid production), in the hydrometallurgy industries, and as materials for offshore applications due
to their excellent corrosion resistance in chloride environments, compared with other commercial types of ferritic stainless
steels. These alloys also possess superior weldability and better mechanical properties than austenitic stainless steels.
However, due to their two-phase structure, the nature of which is very dependent on their composition and thermal history,
the behavior of SDSS regarding localized corrosion appears difficult to predict, especially in chloride environments. To improve
their final properties, the effect of the partition of the alloying elements between the two phases, and the composition and
microstructure of each phase are the key to understanding the localized corrosion phenomena of SDSS. This paper concerns the
effects of the SDSS microstructure and heat treatment on the SDSS corrosion resistance in aqueous solutions, containing different
amounts of NaCl at room temperature. 相似文献
148.
Massimo La Deda Mauro Ghedini Iolinda Aiello Irene De Franco 《Inorganic chemistry communications》2004,7(12):1273-1276
This communication reports the synthesis of polymetallic species formed by a zinc-tetraphenolporphyrinate core (ZnTPP(OH)4, 1) and peripheral gallium-quinaldinate fragments. The photophysical analysis of 1 and of the model compound , R, shows an appreciable overlap between the absorption spectra of 1 and the emission spectra of R, suggesting the presence of a donor–acceptor energy-transfer process. Contrarily, the obtained results indicated that energy transfer does not occur, hence these polymetallic complexes work as double emitting species, for which the colour of luminescence depends on the excitation energy. 相似文献
149.
Irene Martín Teresa GarcíaVioleta Fajardo María RojasNicolette Pegels Pablo E. HernándezIsabel González Rosario Martín 《Meat science》2009
A real-time polymerase chain reaction assay using primers targeting the porcine-specific mitochondrial 12S rRNA gene and universal eukaryotic primers amplifying a conserved fragment of the nuclear 18S rRNA gene has been developed for the detection and quantification of porcine DNA in food and feedstuffs. The 18S rRNA primers were used as endogenous control for the total content of PCR-amplifiable DNA in the sample. The assay was tested on DNA extracted from raw and heat-treated binary mixtures of porcine tissues in a plant matrix, and on DNA extracted from reference feedstuff samples. Analysis of experimental mixtures demonstrated the suitability of the assay for the detection and quantification of porcine DNA in mixtures containing as little as 0.1%. 相似文献
150.
This study examines the diffusion of small methylated and hydroxylated siloxanes through solutions of polymer and crosslinker molecules. The diffusivity of the siloxanes was calculated for bulk diffusion and for surface segregation. Our simulations demonstrate that there is significant interaction between 3,3-dimethylhexahydroxytrisiloxane (hexa-OH-TS) and the polar solvent components of the paint matrix at 298 K. The nature of these associations is largely due to hydrogen bonding between the siloxane and the polar solvent molecules. At 573 K the diffusivity of solvent molecules is sufficiently high to disrupt interactions. The smaller number of hydroxyl groups in 1,5-dihydroxyhexamethyltrisiloxane (hexa-Me-TS) results in a weaker interaction with the polar solvent. Surface segregation studies indicate that there is a slight increase in the concentration of hexa-OH-TS in the surface layer of the system as a result of curing and relaxation processes. However, for hexa-Me-TS there is in fact a decrease in the surface concentration of the siloxane relative to the bulk concentration. 相似文献