Replacing points by compacta in neural network approximation     

Paul C. Kainen 《Journal of The Franklin Institute》2004,341(4):391-399

It is shown that cartesian product and pointwise-sum with a fixed compact set preserve various approximation-theoretic properties. Results for pointwise-sum are proved for F-spaces and so hold for any normed linear space, while the other results hold in general metric spaces. Applications are given to approximation of L_p-functions on the d-dimensional cube, 1?p<∞, by linear combinations of half-space characteristic functions; i.e., by Heaviside perceptron networks.  相似文献   

Copyright or copyleft?: An analysis of property regimes for software development   总被引：3，自引：0，他引：3  

Paul B. de Laat   《Research Policy》2005,34(10):1511-1532

Two property regimes for software development may be distinguished. Within corporations, on the one hand, a Private Regime obtains which excludes all outsiders from access to a firm's software assets. It is shown how the protective instruments of secrecy and both copyright and patent have been strengthened considerably during the last two decades. On the other, a Public Regime among hackers may be distinguished, initiated by individuals, organizations or firms, in which source code is freely exchanged. It is argued that copyright is put to novel use here: claiming their rights, authors write ‘open source licenses’ that allow public usage of the code, while at the same time regulating the inclusion of users. A ‘regulated commons’ is created. The analysis focuses successively on the most important open source licenses to emerge, the problem of possible incompatibility between them (especially as far as the dominant General Public License is concerned), and the fragmentation into several user communities that may result.  相似文献   

Towards a truer multicultural science education: how whiteness impacts science education     

Le  Paul T.  Matias  Cheryl E. 《Cultural Studies of Science Education》2019,14(1):15-31

Cultural Studies of Science Education - The hope for multicultural, culturally competent, and diverse perspectives in science education falls short if theoretical considerations of whiteness are...  相似文献   

Enhancement and constraint: student-mothers’ experiences of higher vocational education,emotion and time     

Paul H. Smith 《Cambridge Journal of Education》2019,49(2):163-179

Student-mothers who study vocationally related higher education programmes are a relatively under-researched group. Specifically, there is a paucity of research into the emotions that these learners experience. This article discusses a qualitative investigation that examined the emotional narratives that a group of vocational student-mothers offered. They were studying for a foundation degree for teaching assistants at a university in the North of England. The student-mothers were largely found to have experienced positive emotions. However, familial and workplace guilt had also been encountered. These emotions emanated from notions about how family and workplace time should be used. Student-mothers managed this cognitive dissonance by stressing the reciprocal relationships that existed between their studies, family lives and school work. However, for many of these learners familial and workplace guilt was a strong and continuing emotion.  相似文献   

Student performances on the science processes of recording data,analyzing data,drawing conclusions,and providing evidence     

Paul J. Germann  Roberta J. Aram 《科学教学研究杂志》1996,33(7):773-798

The National Committee on Science Education Standards and Assessment (1994 draft) viewed several science processes as important to an understanding of science as inquiry: formulating usable questions, planning experiments, conducting systematic observations, interpreting and analyzing data, drawing conclusions, communicating, and coordinating and implementing a full investigation. This study is one of three undertaken to develop research rubrics for a performance assessment of science processes and to evaluate seventh-grade science students' ability to perform them. Specifically, this article focuses on the processes of recording data, analyzing data, drawing conclusions, and providing evidence. A total of 364 students field tested the Alternative Assessment of Science Process Skills. Their responses were used to develop a research rubric, and then this rubric was used to determine response patterns that could inform both instruction and assessment of science process skills. Only 61% of students performed the activity and recorded data successfully. Sixty-nine percent of students did not attend to the hypothesis in drawing their conclusions. Eighty-one percent did not provide specific evidence for their conclusions. These results were discussed in light of relevant theories and models as well as their implications for instruction and assessment. © 1996 John Wiley & Sons, Inc.  相似文献   

Business Giving,the Tsunami and Corporates as Rock Stars: Some Implications for Arts Funding?     

Jenny Harrow  Paul Palmer  Mariana Bogdanova 《Cultural Trends》2006,15(4):299-323

Financial and cultural aspects of corporate giving by UK and non-UK companies in response to the December 2004 South Asia Tsunami disaster are explored in this article. Literatures on corporate giving rationales, concepts of disaster and donor activity in disasters provide an underpinning. The article seeks to make connections between this high profile if short-lived business giving and the funding of the arts that is sought from business; and to draw tentative lessons for arts funding when seeking business support. The giving accounts in the wake of the Tsunami from a non-probability sample1 1. A probability sample is one in which each person (or company in this case) in the population has an equal chance (probability) of being selected. In a non-probability sample some people (in this case, companies) have a greater chance than others of being selected. For this study the availability of public information on the companies was the deciding factor on being selected. View all notes of 56 UK companies and 16 non-UK companies were examined. Reported online to the UK charity Business in the Community, these accounts were accessed in February 2005 and scrutinized thematically. Concurrently, company financial profiles to accompany giving figures were constructed. Although linkages between donation levels and financial performance were lacking, emerging themes included the role of employees, influencing company giving and creating a climate of expectation of firms' contributions. These developments may have important implications for business funding for the arts, where leading philanthropists are prominent as individuals in the giving landscapes; but employees' collective involvement is not marked. Alternatively, cultivation of employees as would-be donors, indirectly via their firms, may be a more secure, if lower level route to funding for some arts organizations than dependence on high profile business leaders. The article considers alternative scenarios for company giving in disaster contexts, including as a sustained and lasting giving theme or as company support as a ‘one-off’ event, rock-star style. The likely development of employee power as a key element in company giving is explored; and its wider meanings for funding in arts settings, (where the giver as rock star heroine/hero is also prominent) are considered.  相似文献   

Analysis to design: A technical training submethodology     

Paul L. Garavaglia 《Performance Improvement》1993,32(2):26-30

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When we teach,what gets learned? Today's crisis in corporate training     

Paul G. Whitmore 《Performance Improvement》1993,32(10):23-29

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Using a checksheet as a guide for high-involvement training     

Paul E. Brauchle  David W. Wright 《Performance Improvement》1995,34(3):4-8

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Training needs assessment: Fact or fiction?     

Paul G. Renard  Pomeroy Sinnock 《Performance Improvement》1990,29(8):12-15

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