1,910 research outputs found

    Pinocchio in Littleton

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    In this Article, Professor Kell proposes a substantial change in policy direction in the wake of school shootings and other tragedies involving young people\u27s abilities to make mature decisions. First, the Article questions the current state of the law which exclusively deems young people to be mature based on birthdays and bad acts, rather than on any concept of demonstrated or earned levels of responsibility. Next, an alternative legal framework is envisioned recognizing young people as increasingly competent citizens who must develop psychosocial maturity, including learning how to judge and utilize advice from others such as parents and peers, weigh risks, and forgo short-term gain for longer-term satisfaction. This alternative framework is then applied to identify initial steps toward legal reform in the contexts of education, employment, community, and government. In conclusion, the Article calls for the development of new stories, framed by law, to foster opportunities for young people to mature and exercise their decision-making abilities

    Voices Lost and Found: Training Ethical Lawyers for Children

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    Symposium: Law and the New American Family Held at Indiana University School of Law Apr. 4, 199

    An investigation of the impact of bounded rationality on the decarbonisation of Kenya's power system

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    How can we transition to a low-carbon energy supply to limit the effects of climate change? The methodology of quantitative energy models can have an impact on the advice inferred. We compare Kenya’s electricity system transition to 2050 with a 2-model inter-comparison. To explore the uncertainty, we use an agent-based simulation model (MUSE) and an optimisation model (OSeMOSYS)

    Color television study Final report, Nov. 1965 - Mar. 1966

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    Color television camera for transmission from lunar and earth orbits and lunar surfac

    Die Vorstellungen der Verbände zur Berufsausbildung

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    Quickly fading afterimages: hierarchical adaptations in human perception

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    Afterimages result from a prolonged exposure to still visual stimuli. They are best detectable when viewed against uniform backgrounds and can persist for multiple seconds. Consequently, the dynamics of afterimages appears to be slow by their very nature. To the contrary, we report here that about 50% of an afterimage intensity can be erased rapidly--within less than a second. The prerequisite is that subjects view a rich visual content to erase the afterimage; fast erasure of afterimages does not occur if subjects view a blank screen. Moreover, we find evidence that fast removal of afterimages is a skill learned with practice as our subjects were always more effective in cleaning up afterimages in later parts of the experiment. These results can be explained by a tri-level hierarchy of adaptive mechanisms, as has been proposed by the theory of practopoiesis.Comment: 3 pages, 3 figure

    Comments on the optical lineshape function: Application to transient hole-burned spectra of bacterial reaction centers

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    Citation: Reppert, M., Kell, A., Pruitt, T., & Jankowiak, R. (2015). Comments on the optical lineshape function: Application to transient hole-burned spectra of bacterial reaction centers. Journal of Chemical Physics, 142(9), 7. doi:10.1063/1.4913685The vibrational spectral density is an important physical parameter needed to describe both linear and non-linear spectra of multi-chromophore systems such as photosynthetic complexes. Low-temperature techniques such as hole burning (HB) and fluorescence line narrowing are commonly used to extract the spectral density for a given electronic transition from experimental data. We report here that the lineshape function formula reported by Hayes et al. [J. Phys. Chem. 98, 7337 (1994)] in the mean-phonon approximation and frequently applied to analyzing HB data contains inconsistencies in notation, leading to essentially incorrect expressions in cases of moderate and strong electron-phonon (el-ph) coupling strengths. A corrected lineshape function L(omega) is given that retains the computational and intuitive advantages of the expression of Hayes et al. [J. Phys. Chem. 98, 7337 (1994)]. Although the corrected lineshape function could be used in modeling studies of various optical spectra, we suggest that it is better to calculate the lineshape function numerically, without introducing the mean-phonon approximation. New theoretical fits of the P870 and P960 absorption bands and frequency-dependent resonant HB spectra of Rb. sphaeroides and Rps. viridis reaction centers are provided as examples to demonstrate the importance of correct lineshape expressions. Comparison with the previously determined el-ph coupling parameters [Johnson et al., J. Phys. Chem. 94, 5849 (1990); Lyle et al., ibid. 97, 6924 (1993); Reddy et al., ibid. 97, 6934 (1993)] is also provided. The new fits lead to modified el-ph coupling strengths and different frequencies of the special pair marker mode, omega(sp), for Rb. sphaeroides that could be used in the future for more advanced calculations of absorption and HB spectra obtained for various bacterial reaction centers. (c) 2015 AIP Publishing LLC
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