This research looks at Russia’s policy following Hamas’ terrorist attack on Israel on October 7th, 2023, and the subsequent Israeli retaliation. For years, Russia pursued a policy in the Middle East that sought to transform it into a pragmatic or “equidistant” actor that dealt with all relevant stakeholders without aligning closely with any. However, in the months since the Hamas attacks, Russia has taken a visibly pro-Palestinian side and sacrificed good relations with Israel. This research assesses these developments in the context of Russia’s post-Ukraine War diplomatic isolation.

Jan van Eyck (ca. 1390–1441), heralded as the founder of early Netherlandish painting, is renowned for his miraculous depictions of the natural world in oil paint that changed the course of western European painting. The Crucifixion and Last Judgment by van Eyck entered the Metropolitan Museum in 1933, and they have been the focus of constant study ever since. Admittedly, they are unusual in many ways for the oeuvre of Jan van Eyck and a significant number of mysteries have remained unsolved. For example, what was their original appearance and function? Were they always joined as a diptych (as we see them today), the wings of a triptych, or perhaps the doors of a tabernacle or reliquary shrine? Are the biblical texts in pastiglia that embellish the inner coves of the original frames Van Eyck’s concept or later additions? The reconsideration of these questions is the result of new technical examinations of the paintings and their frames. Our aim is to discover Van Eyck’s art—its facture, meaning, and function—within the context of its own time, and with particular regard to the circumstances of the commission. The challenging question to keep in mind is to what extent Jan van Eyck would necessarily engage different pictorial strategies – including varied spatial concepts, compositional modes, and figural expression – in order to serve the narrative and even the iconic essence of the image. Unravelling these mysteries enables a deeper understanding and appreciation of the paintings for modern viewers.

To better understand the fear of floating phenomenon in exchange rate regime evolution, this paper advances the method to identify state dependence and establish four new findings and explanations. One, the introduction of state dependence into a multinomial discrete choice model and calculation of marginal effect corresponding to the parameter estimation are important to correctly explain the exchange rate regimes evolution. Two, both spurious and true state dependence factors can explain the fear of floating phenomenon. Three, the estimations of capital account openness are contrary to the prediction of classical theories but are consistent with the fear of floating phenomenon in developing economies. Finally, the degree of financial market development cannot affect the regime choices directly, but its non-linear impact mechanism can further strengthen the explanatory power of this study.

本次讲座的重点在于如何与人工智能高效互动，以增加科研效率。我们将通过实例探讨Scopus AI和研知两个数据库的使用，向大家详细介绍：如何提出具有针对性的问题？如何得到较为满意的答案？如何更好的利用AI提供的信息？在使用这类AI产品的时候，我们需要注意哪些问题？

一 什么是文学和艺术

二 为什么要有文学和艺术

1 尼采：存在之无聊

2 海德格尔：此在根本上就是操心

3 “操心之神”于《浮士德》

三  尼采和音乐

四  无聊和艺术——兼论艺术的本质

五  结语：用音乐克服“可怕的”生命