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41.
In two experiments, rats were given intermixed or blocked preexposure to two similar compound stimuli, AX and BX. Following preexposure, conditioning trials took place in which AX (Experiment 1) or a novel compound stimulus NX (Experiment 2) was paired with a food-unconditioned stimulus in an appetitive Pavlovian preparation. Animals that were given alternated preexposure showed lower generalization from AX to BX (Experiment 1) and from NX to a new compound, ZX (Experiment 2), than animals that were given blocked preexposure, a perceptual learning and a perceptual learning transfer effect, respectively. 相似文献
42.
PhD graduates hold the highest education degree, are trained to conduct research and can be considered a key element in the
creation, commercialization and diffusion of innovations. The impact of PhDs on innovation and economic development takes
place through several channels such as the accumulation of scientific capital stock, the enhancement of technology transfers
and the promotion of cooperation relationships in innovation processes. Although the placement of PhDs in industry provides
a very important mechanism for transmitting knowledge from universities to firms, information about the characteristics of
the firms that employ PhDs is very scarce. The goal of this paper is to improve understanding of the determinants of the demand
for PhDs in the private sector. Three main potential determinants of the demand for PhDs are considered: cooperation between
firms and universities, R&D activities of firms and several characteristics of firms, size, sector, productivity and age.
The results from the econometric analysis show that cooperation between firms and universities encourages firms to recruit
PhDs and point to the existence of accumulative effects in the hiring of PhD graduates. 相似文献
43.
Concerns regarding whether a sufficient supply of school psychologists exists have been evident for decades. Studies have predicted that school psychology would face a critical personnel shortage that would peak in 2010, but continue into the foreseeable future. The current study is a 10‐year follow‐up investigation based on previously published personnel shortage projections. Data derived from the National Association of School Psychologists 2009–2010 national study were used to examine current personnel shortages as well as to project the extent to which personnel shortages are likely to continue. Findings indicate that the field of school psychology continues to experience a personnel shortage that will continue through 2025. Additionally, greater rates of retirements are projected for the field for school psychologists who are males, who possess a doctoral degree, and for university faculty. Analyses based on the U.S. Census Regions indicate that notable differences are likely to occur in the match between the supply of and demand for school psychologists based on geographical location. Implications are discussed relating to the recruitment and retention of school psychologists and to the services they deliver. 相似文献
44.
Crowdsourcing interactions: using crowdsourcing for evaluating interactive information retrieval systems 总被引:1,自引:0,他引:1
Guido Zuccon Teerapong Leelanupab Stewart Whiting Emine Yilmaz Joemon M. Jose Leif Azzopardi 《Information Retrieval》2013,16(2):267-305
In the field of information retrieval (IR), researchers and practitioners are often faced with a demand for valid approaches to evaluate the performance of retrieval systems. The Cranfield experiment paradigm has been dominant for the in-vitro evaluation of IR systems. Alternative to this paradigm, laboratory-based user studies have been widely used to evaluate interactive information retrieval (IIR) systems, and at the same time investigate users’ information searching behaviours. Major drawbacks of laboratory-based user studies for evaluating IIR systems include the high monetary and temporal costs involved in setting up and running those experiments, the lack of heterogeneity amongst the user population and the limited scale of the experiments, which usually involve a relatively restricted set of users. In this paper, we propose an alternative experimental methodology to laboratory-based user studies. Our novel experimental methodology uses a crowdsourcing platform as a means of engaging study participants. Through crowdsourcing, our experimental methodology can capture user interactions and searching behaviours at a lower cost, with more data, and within a shorter period than traditional laboratory-based user studies, and therefore can be used to assess the performances of IIR systems. In this article, we show the characteristic differences of our approach with respect to traditional IIR experimental and evaluation procedures. We also perform a use case study comparing crowdsourcing-based evaluation with laboratory-based evaluation of IIR systems, which can serve as a tutorial for setting up crowdsourcing-based IIR evaluations. 相似文献
45.
Irene Trullas Oriol R. Fusalba Angels Fito Jose M. Sallan 《Journal of Marketing for HIGHER EDUCATION》2013,23(2):266-281
In the current context, the need for marketing in institutions of higher education is undeniable. The specification of the student not merely as a ‘customer’ means that traditional marketing no longer has sufficient capacity to explain the behavior of the student body. In this study, a four-level relationship marketing model is tested to check the influence of perceived organizational support (POS) and perceived employability on identification with the institution and the perceived price-quality ratio and how these influence student satisfaction. In addition, the constructs prior to POS and perceived employability are identified, which are explicit enough to enable specific marketing actions to be carried out. As POS is a construct defined for the labor market, its use applied to relational marketing comes up as something innovative.To this end, Likert scales have been designed and validated to measure these constructs. The results of this test show how the perception of organizational support depends on the relationship of the student body with the administration and management of the center. Likewise, the perception of employability depends on the perceived reputation and the perception of the promotion of employability. Furthermore, it is confirmed that satisfaction is positively related to identification and the perceived price-quality ratio, which in turn are positively related to organizational support and perceived employability. 相似文献
46.
The importance of a scientific journal is usually established by considering the number of citations received by the papers that the journal publishes. In this way, the number of citations received by a scientific journal can be considered as a measure of the total production of the journal. In this paper, in order to obtain measures of the efficiency in the production process, the approach provided by stochastic frontier analysis (SFA) is considered, and econometric models are proposed. These models estimate a frontier production, which is the maximum achievable number of citations to the journal based on its resources. The efficiency can then be measured by considering the difference between the actual production and the estimated frontier. This approach is applied to the measurement of the productive efficiency of the journals of the JCR social sciences edition database, which belong simultaneously to the areas of “economics” and “social sciences, mathematical methods”. 相似文献
47.
Maria Jose Gonzalez 《Infancia y Aprendizaje》2013,36(48):7-24
ResumenEl presente estudio intenta analizar, desde una perspectiva psicolinguistica, el desarrollo fonológico de niños castellanoparlantes de la ciudad de Málaga, en función de variables como el sexo, el nivel sociocultural y edad de los sujetos, atendiendo, por otra parte, a la influencia de características dialectales del habla andaluza.Tras la elaboración y administración de una prueba de screening, en condiciones de imitación, se registraron las producciones correctas y distintos procesos de simplificación del habla (sustitución, relativos a la estructura de la sílaba y asimilatorios), no encontrándose diferencias significativas con respecto al sexo, aunque sí en cuanto al nivel sociocultural y a la edad de los sujetos.Cabe destacar que la influencia del modelo lingüístico andaluz podría enmascarar los patrones evolutivos del desarrollo fonológico infantil. Sin embargo, el hecho de que los sujetos malagueños presenten porcentajes bajos en pronunciación correcta en edades avanzadas, en algunas categorías de fonemas, es debido a la influencia de variantes dialectales, más a que presenten patrones evolutivos más tardíos en cuanto a su capacidad de representación fonológica. 相似文献
48.
Factors Affecting Student Choice of Career in Science and Engineering: parallel studies in Australia,Canada, China,England, Japan and Portugal 总被引:1,自引:1,他引:0
Brian E. Woolnough Yuying Guo Maria Salete Leite Maria Jose de Almeida Tae Ryu Zhen Wang 《Research in Science & Technological Education》2013,31(1):105-121
This paper describes parallel studies carried out in six countries which investigated the factors which influence school students towards careers and higher educational studies in the physical sciences or technology. The studies consisted of a common questionnaire survey, supplemented by student interviews. It reveals differences between scientists and non scientists in regard to their preferred learning styles, to the broad factors which were influential in their career choice and to their self perception against different personality types. Many factors are common across a wide range of countries. Implications of these findings for schools, higher education and government are discussed. 相似文献
49.
Allan B. de Guzman Andrei Angelo R. Cruz Angela Laurice G. Cruz Robert Edward D. Cruz Jose Mari Niño L. Cuarto 《Educational gerontology》2013,39(8):673-686
The continually rising percentage of the elderly population and the demand for geriatric nursing care are dramatically related. While it is true that most undergraduate programs prepare nurses for the care of geriatric patients, most receive limited academic preparation in the nursing curriculum (Williams & Mezey, 2000). This is particularly true in the Philippines where there is no stand-alone geriatric nursing course. This phenomenological study purports to capture the lived experiences of Filipino nursing students' dilemmas in geriatric care. Five Filipino senior nursing students and three clinical faculty from a comprehensive university in the Philippines were purposely chosen for the study. A two-part instrumentation was used. The first is the robotfoto, a Dutch term which means a cartographic sketch of the subject (Kelchtermans & Ballet, 2002). The second was a semi-structured face-to-face interview that was recorded with the consent of the participants. The full texts were phenomenologically reduced using a repertory grid to observe both cool and warm analyses, which facilitates the identification of unique conceptual clusters. Findings of this study have described the elements that define student dilemmas in geriatric care. The emerged Students' Dilemmas in Geriatrics Causality Quadrant (SDGCQ), which consists of (a) Foundational Deficit, (b) Psychological Deficit, (c) Relational-Attitudinal Deficit, and (d) Occupational Deficit, are valuable discussion points for needed reforms in the present-day nursing curriculum. 相似文献
50.
José Albors-Garrigós Jose Luis Hervas-OliverAuthor VitaePatricia MárquezAuthor Vitae 《International Journal of Information Management》2009
For traditional industries it is a real challenge, not only to achieve a clear product differentiation, but also to provide adequate services in order to ensure value and customer fidelity. 相似文献