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  1. Há 1 dia · No state paid its share of taxes to support the government, and some paid nothing. A few states did meet the interest payments toward the national debt owed by their citizens, but nothing greater, and no interest was paid on debts owed foreign governments. By 1786, the United States was facing default on its outstanding debts.

  2. Há 59 minutos · Abstract. The chapter on market structures in the context of power systems provides a detailed examination of the diverse market forms that characterise the energy sector. Developed and modern power systems, essential for today’s and future societies, exhibit a range of market structures, each with distinct characteristics and implications.

  3. Há 59 minutos · Publish with us. Policies and ethics. In this chapter, we address the theory of consumers, which is a fundamental concept in the field of engineering of power systems economics. The utility function is key in the development of the theory of consumers. It represents the preferences and satisfaction of...

  4. Há 59 minutos · Abstract. In the paper (Sarti et al. in Biol Cyb 98:33–48, 2008), Jean Petitot together with the authors of the present paper describe the functional geometry of the visual cortex as the symplectization of a contact form to describe the family of cells sensitive to position, orientation and scale. In the present paper, as a “homage” to ...

  5. Há 59 minutos · But, for the semiotician, the central contribution of Jean Petitot’s work was to dare to build a bridge between the exact sciences and the human sciences, by attempting and succeeding in a mathematization of semiotic concepts using the theory of René Thom who, himself, praised this pioneering bypass operation.

  6. Há 59 minutos · Note that it is the most general form of the two-band model for the mixed valence situation. In manganites (see Chap. 7), we deal with the two-band degenerate Hubbard model, which can be reduced within some range of parameters region to the orbital t–J model and describes the Kugel–Khomskii physics of orbital ordering [] together with the beautiful physics of orbital ferrons in the ...