共查询到20条相似文献，搜索用时 843 毫秒
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故事教学,采用大家都喜欢的故事为教学材料,语言丰富,教学方法多样不仅学生爱学,教师也爱教。 相似文献
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Your evidence constrains your rational degrees of confidenceboth locally and globally. On the one hand, particular bitsof evidence can boost or diminish your rational degree of confidencein various hypotheses, relative to your background information.On the other hand, epistemic rationality requires that, forany hypothesis h, your confidence in h is proportional to thesupport that h receives from your total evidence. Why is itthat your evidence has these two epistemic powers? I argue thatvarious proposed accounts of what it is for something to bean element of your evidence set cannot answer this question.I then propose an alternative account of what it is for somethingto be an element of your evidence set.
- 1 Introduction
- 2 Theelements of one's evidence set are propositions
- 3 Which kindsof propositions are in one's evidence set?
- 3.1 Doxastic accountsof evidence
- 3.2 Non-doxastic accountsof evidence
- 4 Elaboratingand defending the LIE
- 2 Theelements of one's evidence set are propositions
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《科学大众》2002,(11)
Air pressure is the force exerted on you by the weightof tiny particles of air (air molecules). Although airmolecules are invisible, they still have weight and take upspace. Since there's a lot of "empty" space between airmolecules, air can be compressed to fit in a smallervolume. 相似文献
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The Metaverse is not a radical departure. It is an incremental evolution. Previous virtual worlds, like Second Life, have laid the groundwork for the development of the Metaverse by providing valuable insights into virtual environments and social interactions. Studies of these earlier platforms contribute to a more nuanced understanding of what the Metaverse is, and what it is not. Based on studies of virtual worlds and by applying inductive processes of reflection and abstraction, we propose a framework that supports the identification of attributes that help differentiate the Metaverse from previous virtual worlds from a user experience perspective. We demonstrate the value of the framework by comparing the Metaverse to Second Life. Our framework and comparative analysis ground the current discussions about the Metaverse deeper in the established discourse on virtual worlds. They also shed light on the potential impact of the Metaverse, the special role of its immersiveness and help us to identify lessons learned that can inform the Metaverse's further development. 相似文献
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Nye MJ 《Endeavour》1999,23(4):148-154
There is a long tradition within scientific communities that encourages governments, patrons and citizens to enlist scientific expertise in the service of the public good. However, since the 17th century, scientists who have engaged in public political controversy have often been judged harshly by scientific colleagues, as well as by political adversaries. Some prominent scientists were politically active in Germany, France and England during the 1920s and 1930s; controversial stands were taken by the British physicist P.M.S. Blackett and the American chemist Linus C. Pauling against their countries' nuclear weapons policy following the Second World War. 相似文献
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Ben R. Martin 《普罗米修斯》2016,34(1):7-24
In recent decades, many universities have been moving in the direction of a more hierarchical and centralised structure, with top-down planning and reduced local autonomy for departments. Yet, the management literature over this period has stressed the numerous benefits of flatter organisational structures, decentralisation and local autonomy for sections or departments. What might explain this paradox? And why have academics remained strangely quiet about this, meekly accepting their fate? This proposition paper critically examines the dangers of centralised top-down management, increasingly bureaucratic procedures, teaching to a prescribed formula, and research driven by assessment and performance targets, illustrating these with a number of specific examples. It discusses a number of possible forces driving these worrying developments, and concludes by asking whether academics may be in danger of suffering the fate of the boiled frog. 相似文献
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《科学大众》2015,(6)
<正>蜂蜜水大家都知道,但是你知道,为什么大家爱喝蜂蜜水吗?蜂蜜水对人有哪些好处呢?Read on and let me tell you the wonders of honey and warm water.1.Watch Your Weight Melt Away Yes,drinking water and honey can help you lose weight.Get the thoughts about the sugar aspect of honey out of your head,as that is one of its benefi ts.The sugar in honey is a natural sugar which provides a healthy source of calories. 相似文献
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Innovating firms are likely to face several challenges and experience different types of barriers. In this paper we argue that it is necessary to distinguish between two kinds of barriers to innovation. The first corresponds to what we describe as revealed barriers and reflects the degree of difficulty of the innovation process and the learning experience consequent on the firm engaging in innovation activity. The second type of impediment, which we label deterring barriers, encompasses the obstacles that prevent firms from committing to innovation. We use data from the 4th UK Community Innovation Survey (CIS4) to investigate the relationship between firms’ engagement in innovation and their assessment of the barriers to innovation. We show that the relationship is curvilinear in the case of costs and market barriers. These results have important implications for innovation policy and innovation management. 相似文献
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Algorithms are progressively transforming human experience, especially, the interaction with businesses, governments, education, and entertainment. As a result, people are growingly seeing the outside world, in a sense, through the lens of algorithms. Despite the importance of algorithmic experience (AX), few studies had been devoted to investigating the nature and processes through which users perceive and actualize the potential for algorithm affordance. This study proposes the Algorithm Acceptance Model to conceptualize the notion of AX as part of the analytic framework for human-algorithm interaction. It then tests how AX shapes the satisfaction with and acceptance of algorithm services. The results show that AX is inherently related to human understanding of fairness, transparency, and other conventional components of user-experience, indicating the heuristic roles of transparency and fairness regarding their underlying relations of user experience and trust. AX can influence the user perception of algorithmic systems in the context of algorithm ecology, offering useful insights into the design of human-centered algorithm systems. The findings provide initial and robust support for the proposed Algorithm Acceptance Model. 相似文献
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What is so bad about Internet content regulation? 总被引：1，自引：0，他引：1
John Weckert 《Ethics and Information Technology》2000,2(2):105-111
Legislation was recently introduced into theAustralian parliament to regulate the Internet. Thiscreated a storm of protest from within the computerindustry, where arguments against the legislationranged from those based on technical difficulties tothose based on moral considerations, particularly offreedom of speech and freedom to access information.This paper is primarily concerned with the moralaspects of Internet regulation, but within theparameters of current technology. It will argue thatsuch regulation can be justified, despite the factthat given the current technology there will bedifficulties with enforcement, and reduction inInternet performance. 相似文献
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Whereas recent scholarly research has provided many insights about universities engaging in commercial activities, there is still little empirical evidence regarding the opposite phenomenon of companies disseminating scientific knowledge. Our paper aims to fill this gap and explores the motivations of firms that disclose research outcomes in a scientific format. Besides considering a dimension internal to the firm, we focus particularly on knowledge sourcing from academic institutions and the appropriability regime. We conduct an econometric analysis with firm-level data from the fourth edition of the French innovation survey (CIS) and matched scientific publications for a sample of 2512 R&D performing firms from all manufacturing sectors. This analysis provides evidence that firms are more likely to adopt academic principles if they need to access scientific knowledge that is considered important for their innovation development, whereas the mere existence of collaborative links with academic institutions is not a strong determinant. Furthermore, the results suggest that the inclination of firms to publish is sensitive to the level of knowledge spillovers in a sector and the effectiveness of legal appropriation instruments. 相似文献
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What Are the New Implications of Chaos for Unpredictability? 总被引：1，自引：0，他引：1
From the beginning of chaos research until today, the unpredictabilityof chaos has been a central theme. It is widely believed andclaimed by philosophers, mathematicians and physicists alikethat chaos has a new implication for unpredictability, meaningthat chaotic systems are unpredictable in a way that other deterministicsystems are not. Hence, one might expect that the question ‘Whatare the new implications of chaos for unpredictability?’has already been answered in a satisfactory way. However, thisis not the case. I will critically evaluate the existing answersand argue that they do not fit the bill. Then I will approachthis question by showing that chaos can be defined via mixing,which has never before been explicitly argued for. Based onthis insight, I will propose that the sought-after new implicationof chaos for unpredictability is the following: for predictingany event, all sufficiently past events are approximately probabilisticallyirrelevant.
- Introduction
- Dynamical Systems and Unpredictability
- 2.1 Dynamical systems
- 2.2 Natural invariant measures
- 2.3Unpredictability
- 2.2 Natural invariant measures
- 2.1 Dynamical systems
- Chaos
- 3.1 Defining chaos
- 3.2 Definingchaos via mixing
- 3.1 Defining chaos
- Criticism of Answers in the Literature
- 4.1 Asymptotic unpredictability?
- 4.2 Unpredictability dueto rapid or exponential divergence?
- 4.3 Macro-predictabilityand Micro-unpredictability?
- 4.2 Unpredictability dueto rapid or exponential divergence?
- 4.1 Asymptotic unpredictability?
- A General New Implication ofChaos for Unpredictability
- 5.1Approximate probabilistic irrelevance
- 5.2 Sufficiently pastevents are approximately probabilisticallyirrelevant for predictions
- 5.1Approximate probabilistic irrelevance
- Conclusion
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Maienschein J Smith G 《Isis; an international review devoted to the history of science and its cultural influences》2008,99(2):318-321
This essay opens up the question of what difference the history of science makes. What is the value of the history of science, beyond its role as an academic pursuit that we historians of science know and love? It introduces the set of essays that follow as explorations that grew out of a seminar on this topic and that arise from the authors' particular concerns both that historians of science do not work hard enough to make their work of value and that others do not know of the potential. That seminar, at the Marine Biological Laboratory, was funded for nineteen years by the Dibner Institute and last year by Brent Dibner. It will continue and carry such discussions forward in new ways as the Arizona State University-Marine Biological Laboratory History of Biology Seminar Series. This set of focused essays seeks to invite lively discussion and response. 相似文献