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Sebastien Fitch 《The International Journal of Art & Design Education》2018,37(2):244-252
In recent decades, the field of art education has seen an increasing interest in issues of social justice and social reconstruction which has led to pre‐service art educators often being encouraged to include potentially controversial topics in their pedagogy. Surprisingly, however, there seems to have been little concurrent discussion concerning the inherent risks involved in introducing polemical themes within the classroom. Indeed, despite its obvious importance, the subject of censorship is often given little attention in art education circles, save for when it has already become an active problem, such as when an instructor is accused of censorship by a student, or when forces outside the classroom seek to involve themselves in pedagogical decisions. In this article, I describe my experience creating and implementing an undergraduate pre‐service art education course on the subject of censorship. I begin by examining my students’ reactions to some of the themes explored, and then explain how discussing cases of art censorship and controversy can serve as a platform for introducing students to the key role that context plays in how we perceive, value and react to artworks. Finally, I make the argument that by including censorship as a subject within their curriculum, teachers can help students better to navigate the psychological, moral and ethical complexities of contemporary art making. 相似文献
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西准噶尔萨吾尔地区地处新疆阿勒泰地区吉木乃县及塔城地区和丰县。酸性侵入岩在区内较发育，其研究对于准噶尔地区后碰撞构造一岩浆演化时限的厘定具有重要的意义。塔斯特岩体是萨吾尔地区重要的复式花岗岩体，与区内铜、金矿化关系密切。塔斯特岩体锆石LA-ICPMS年龄为337±4Ma（1δ），形成于早石炭世。结合已有的地球化学特征研究，这一年龄显示西准噶尔地区在早石炭世已处于后碰撞环境。本文获得的塔斯特岩体成岩年龄是目前在准噶尔地区获得的最老的后碰撞花岗岩锆石U-Pb年龄之一，为准噶尔地区后碰撞构造-岩浆演化时限的厘定提供了新的证据。 相似文献
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This paper deals with the synchronization of a chain of nonlinear and uncertain models of nonidentical oscillators. Using Lyapunov's theory of stability, a dynamical controller guaranteeing the synchronization of the oscillators is determined. The problem of synchronization is transformed into a problem of asymptotic stabilization for a nonlinear system and then is formulated as a system of linear matrix inequalities where the parameter variations of the two oscillators and their differences are modeled by polytopic matrices. The theoretical result is successfully applied to an array of transistor-based oscillators used in “smart antenna” systems. 相似文献
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Paul D Saias L Pedinotti JC Chabert M Magnifico S Pallandre A De Lambert B Houdayer C Brugg B Peyrin JM Viovy JL 《Biomicrofluidics》2011,5(2):24102
A broad range of microfluidic applications, ranging from cell culture to protein crystallization, requires multilevel devices with different heights and feature sizes (from micrometers to millimeters). While state-of-the-art direct-writing techniques have been developed for creating complex three-dimensional shapes, replication molding from a multilevel template is still the preferred method for fast prototyping of microfluidic devices in the laboratory. Here, we report on a "dry and wet hybrid" technique to fabricate multilevel replication molds by combining SU-8 lithography with a dry film resist (Ordyl). We show that the two lithography protocols are chemically compatible with each other. Finally, we demonstrate the hybrid technique in two different microfluidic applications: (1) a neuron culture device with compartmentalization of different elements of a neuron and (2) a two-phase (gas-liquid) global micromixer for fast mixing of a small amount of a viscous liquid into a larger volume of a less viscous liquid. 相似文献
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新疆北部东天山十里坡地区近年来新发现了与玄武岩有关的自然铜矿化这一新类型。自然铜的赋矿地层-马头滩组中的赋矿玄武岩锆石LA-ICPMS年龄为307±4Ma，对应于晚石炭世，显示该套赋矿地层属于上石炭统。从该区自然铜赋矿火山岩所限定的时间看，成矿背景应属于后碰撞环境。东天山十里坡地区自然铜矿化的构造背景、成矿系统和矿化类型与峨眉山玄武岩自然铜矿化和美国基威诺铜矿床均存在差异，自然铜矿化的成因可能也存在差异。 相似文献
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In this introduction, we review the arguments that underpin the rationale for the special section, and provide a structured sequence for the contents of the six selected papers that comprise the section. 相似文献
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Sebastien Pesce 《Journal of Philosophy of Education》2014,48(3):474-489
When trying to help teachers cope with the critical situations they face in classrooms, public policies are mainly concerned with improving initial teacher training. I claim in this article that the role of lifelong learning should no longer be undermined and that the design of teachers' training should be supported by a thorough examination of the cognitive processes involved. A faulty view of cognition may explain both our emphasis on initial training and most of the difficulties faced in designing teachers' training. Searching existing alternative metaphors of cognition and investigating new ones constitutes a way of coping with these problems: first to design new forms of training, second to understand the processes involved in innovative training methods that have already been implemented. My focus in this article is precisely the ‘metaphor of cognition’ that underlies innovative teacher training methods. This metaphor is based on Peirce's pragmaticism, and it describes teachers' training as a process of taking and changing habits. This article mainly investigates the links between Peirce's later semiotics, Merleau‐Ponty's Phenomenology of Perception and Varela's theory of enaction, in order to propose a threefold definition of ‘habit’ and define the notion of ‘educational gesture’, which constitutes a translation of the concept of habit in the field of education and training. 相似文献
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Marcela Munera William Bertucci Sebastien Duc Xavier Chiementin 《Sports biomechanics / International Society of Biomechanics in Sports》2016,15(4):409-428
Whole body vibration (WBV) is used as a training method but its physical risk is not yet clear. Hence, the aim of this study is to assess the exposure to WBV by a measure of acceleration at the lower limb under dynamic and static postural conditions. The hypothesis of this paper is that this assessment is influenced by the frequency, position, and movement of the body. Fifteen healthy males are exposed to vertical sinusoidal vibration at different frequencies (20–60 Hz), while adopting three different static postures (knee extension angle: 180°, 120° and 90°) or performing a dynamic half-squat exercise. Accelerations at input source and at three joints of the lower limb (ankle, knee, and hip) are measured using skin-mounted accelerometers. Acceleration values (g) in static conditions show a decrease in the vibrational dose when it is measured at a more proximal location in the lower extremity. The results of the performed statistical test show statistically significant differences (p < 0.05) in the transmissibility values caused by the frequency, the position, and to the presence of the movement and its direction at the different conditions. The results confirm the initial hypothesis and justify the importance of a vibration assessment in dynamic conditions. 相似文献
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Marcela Munera William Bertucci Sebastien Duc Xavier Chiementin 《Journal of sports sciences》2018,36(13):1465-1475
Vibration in cycling has been proved to have undesirable effects over health, comfort and performance of the rider. In this study, 15 participants performed eight 6-min sub-maximal pedalling exercises at a constant power output (150W) and pedalling cadence (80 RPM) being exposed to vibration at different frequencies (20, 30, 40, 50, 60, 70 Hz) or without vibration. Oxygen uptake (VO2), heart rate (HR), surface EMG activity of seven lower limb muscles (GMax, RF, BF, VM, GAS, SOL and TA) and 3-dimentional accelerations at ankle, knee and hip were measured during the exercises. To analyse the dynamic response, the influence of the pedalling movement was taken into account. The results show that there was not significant influence of vibrations on HR and VO2 during this pedalling exercise. However, muscular activity presents a significant increase with the presence of vibration that is influenced by the frequency, but this increase was very low (< 1%). Also, the dynamic response shows an influence of the frequency as well as an influence of the different parts of the pedalling cycle. Those results help to explain the effects of vibration on the human body and the influence of the rider/bike interaction in those effects. 相似文献
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