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1.
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
2.
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
3.
Chinh Duc Nguyen 《Teacher Development》2019,23(2):174-191
Language teachers’ struggles for professional legitimacy have emerged as an area of interest in the field of language teaching research. Grounded in Wenger’s concept of ‘trajectories of learning’, the current study explored the fight for legitimate status of two primary school English language teachers in Vietnam. Data for this article were collected through life-history interviews in which the two participating teachers were encouraged to tell stories about the early days of their teaching careers. The findings of the study reveal that the participants struggled for professional legitimacy during the early stage of their teaching careers. Beyond the school setting, the two teachers encountered negative attitudes towards their teaching profession as teaching languages to young learners was not highly valued in society. Based on the findings, the study pointed to the issue of power relations which, although regarded as a barrier to teachers’ professional legitimacy, is not adequately addressed in the concept of ‘trajectories of learning’. The study also revealed some implications for legitimising language teachers’ professional status. 相似文献
4.
Chinh Duc Nguyen 《Pedagogies: An International Journal》2017,12(3):237-255
This study explores six Vietnamese, English as a Foreign Language (EFL) teachers’ reflections on their experiences of English language learning during the early 1980s to the late 1990s. Data collected in narrative interviews with the participating teachers revealed a wide range of issues that arose during their EFL learning, central to which was the prevalence of grammar-focused practices in all EFL classes. From their perspectives as EFL teachers today, the participants see their learning experience as a way of learning to teach. In particular, they pinpoint the negative aspects of language teaching at that time in the hope that their teaching practice today will not repeat the same mistakes. However, they also reflect on positive aspects, especially their influential teachers, to inform their teaching. Based on the findings, the study suggests that language teachers’ experience of language learning should be considered part of reflective teaching as well as of teachers’ trajectories of learning to teach. 相似文献
5.
AbstractRecent significant changes in technology such as Artificial Intelligence (AI) and big data analysis have a wide impact in many areas of human societies, not least in education. Advances in efficiency of new technologies, with impacts in renewable energy and transport affected by environmental concerns and climate change mitigation, demand a reassessment and adjustment of the industrial structure of the economy. Technological advances enhancing creativity and analytical skills mean people must learn and adapt to a fast-changing economic environment. This paper present some key changes in Australian educational areas in recent years that are important and relevant to the subject of education innovation and philosophy to achieve outcomes in training and sustainable economic development, as anticipated by the community and government. Education courses and curricula in many countries have been transformed by technological advance. It is the swift incorporation of new technologies that best prepares students for the dynamics of economic and social change. Even though technological responsiveness is not a new phenomenon, it is established that the teaching methods found to be most successful include complementary and supplemental courses producing multi-skilled and creative graduates. These courses are delivered with significant emphasis upon self-development skills and are less focused upon traditional content. A move toward horizontal focus and a student-centric balance is the current trend, displacing vertical over-specialisation of learning. Yet, the central role of educator is seen as still appropriate and necessary where the aim is to equip graduates with creative and adaptive skills. 相似文献
6.
范文德 《华中科技大学学报(社会科学版)》2005,19(2):1-5
民族精神在民族的生存与发展取向中有着非常重要的作用。越南民族精神创造于越南整个历史过程并表现于越南文化传统的价值观中，它在越南为独立与民族解放而奋斗的过程中发挥了充分的作用。当前,民族精神对许多民族的改革与现代化至关重要。在全球化背景下，稳定保持与弘扬民族精神首先要保持与弘扬那些创造了民族文化同一性的传统价值观；其次要选择适宜于越南条件的模式，要积极地与世界融合，广泛参与与世界其他民族的对话，学习其精髓以丰富本民族的文化同一性。 相似文献
7.
Hoang Loc Phuoc Le Hieu Thanh Van Tran Hung Phan Thanh Chi Vo Duc Minh Le Phuong Anh Nguyen Dung The Pong-inwong Chakrit 《Education and Information Technologies》2022,27(3):4007-4035
Education and Information Technologies - Peer assessment has an important role in teaching and learning nowadays. However, the existing techniques tend to be limited due to a lack of a suitable... 相似文献
8.
When trainers or teachers in the field of initial vocational education explain abstract notions, refer to technical objects
or emphasize the specificities of technical skills, they often call forth concepts and practices different from those that
are directly salient in the training situations in which they engage. The aim of this paper is to contribute to a better understanding
of the empirical realities associated with such phenomena by promoting a discursive and interactional approach of what we
propose to term “analogical discourse”. Considering that analogies are performed and shared trough language and speech, we
propose that concepts and methodological tools borrowed from the field of linguistics can be profitably applied to the analysis
of analogical discourse. Not only can they reveal the dynamic and collective nature of analogies as they are performed, disseminated
and sometimes negotiated amongst participants, but they can also help reflect about the complexities of vocational learning
as it takes place in specific material, practical and socio-cultural environments. From that standpoint, the paper proposes
to see analogies not only as related to conceptual development and cognitive dimensions of learning, but as a substantial
contribution to the social, cultural and relational dimensions of it. 相似文献
9.
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
10.
The influence of membrane fouling on the retention of the trace organic contaminant sulfamethoxazole by a nanofiltration (NF)
process was investigated. Organic fouling caused a severe flux decline possibly due to pore blocking and adsorption directly
after the commencement of the fouling layer development. Such membrane-foulant interactions were absent for colloidal fouling,
which resulted in a more gradual flux decline. Membrane charge played a significant role in the separation process of inorganic
salts, where the retention was the highest in a caustic environment (high pH) due to more swollen membrane material caused
by the higher negative charge on the membrane. Organic fouling and a combination of colloidal and organic fouling led to a
significant increase in the membrane negative charge. The influence of membrane fouling on solute retention was dependent
on the fouling behaviour and the physicochemical properties of the model foulants, where the model foulants probably contributed
to an increase in the retention of charged solutes due to enhanced electrostatic interactions. Organic fouling caused an increase
in the retention of inorganic salts and sulfamethoxazole due to pore blocking. In contrast, colloidal fouling caused a decrease
in the retention of inorganic salts due to cake-enhanced concentration polarisation. However, the presence of a colloidal
fouling layer did not reduce the retention of sulfamethoxazole. A mixture of colloidal and organic matter improved the retention
of inorganic salts. A similar conclusion can be inferred for sulfamethoxazole at pH 4 when the compound exists in a neutral
form. 相似文献