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  • 早川 滋雄, 森 政義, 渡邊 信明, 藤井 敬三, 荒川 和夫, 森下 憲雄
    Journal of the Mass Spectrometry Society of Japan
    2001年 49 巻 4 号 144-149
    発行日: 2001年
    公開日: 2007/10/16
    ジャーナル フリー
    A trapezoidal peak shape of dissociative ions is observed in the charge inversion mass spectra. The relation between the kinetic energy release (KER) and the peak shape was simulated. Dissociation with a specific KER value having very narrow distribution for both ionic and neutral species affords the trapezoidal peak shape in a mass spectrum. The KER value was evaluated from the full width at half maximum (FWHM) of the trapezoidal peak associated with the CH3O- ions formed from CH3OH+ ions in the charge inversion mass spectrum. The KER value showed the good agreement with that evaluated from the velocity distribution of H atom formed from the photo-dissociation of neutral methanol. This agreement demonstrated that the excited neutral methanol dissociated predominantly into the methoxy radical and the hydrogen atom, and that charge inversion mass spectrometry gave the dissociation of energy-selected neutral species.
  • 源河 亨
    科学哲学
    2014年 47 巻 2 号 87-103
    発行日: 2014/12/20
    公開日: 2015/11/08
    ジャーナル フリー
        According to the Sibleyan account, descriptive aesthetic judgments are warranted by aesthetic perception. I defend this account by using a philosophical theory of perceptual experience, that is, Fregean intentionalism. I will then suggest an anti-realistic account of aesthetic properties, which claims that perceivable aesthetic properties are not realistic properties supervening on sets of non-aesthetic sensible properties (e.g. color, shape, etc.) of objects, but some kind of “modes of presentation” of such properties. Proving this argument, I demonstrate how the philosophy of perception can be useful for considering problems in aesthetics.
  • 小草 泰
    科学哲学
    2011年 44 巻 1 号 1_17-1_33
    発行日: 2011年
    公開日: 2011/10/13
    ジャーナル フリー
        A pretty big debate has been going on in the recent philosophy of mind as to whether the phenomenal character of a perceptual experience is exhausted by (or reduced to) its intentional content. On the one hand, Representationalists often argue on the ground of the so-called ‘transparency of experience’ that the phenomenal character of an experience is exhausted by its intentional content. On the other hand, qualia theorists object that there are non-intentional features of experiences (‘qualia’). But, in my view, the debate itself is wrong-headed in this respect: it presupposes that intentional contents of experiences can be explained without mentioning their phenomenal characters, but this presupposition is groundless. In this paper, I argue, by reconsidering the ‘transparency of experience’ thesis, that a more appropriate view on the relationship between intentional contents and phenomenal characters of experiences is a pretty much different one than that shared by both sides of the debate.
  • 前田 高弘
    科学基礎論研究
    2009年 37 巻 1 号 29-38
    発行日: 2009/11/25
    公開日: 2017/08/01
    ジャーナル フリー
    It is often thought a difficult task to find a place for qualia in the physical world. The reason for this may be that qualia seem to be essentially intrinsic qualities so they cannot be captured entirely in terms of their causal-functional roles. This is the typical way in which qualia are thought to be physicalistically problematic. In this paper I rethink that very problem of qualia by means of metaphysical considerations concerning properties in general. The relevant question in the metaphysics of properties is whether properties have essences which determine their identities independently of their dispositional aspects. (Such essences are called 'quiddities'.) Indeed, the problem of qualia would take a different shape depending on the answer to that metaphysical question. I show this with reference to three main views on that question, namely, quidditism, the causal theory, and the identity theory. In closing, I make a brief remark about what these considerations imply for the relationship between physicalism and qualia.
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