High‐boron and High‐alumina Middle Byzantine (10th–12th Century ce) Glass Bracelets: A Western Anatolian Glass Industry

The trace element boron is present in most ancient glasses as an impurity, and high boron (≥ 300 ppm) marks raw material sources that are geologically specific and relatively uncommon. Recent analyses of Byzantine glass with high boron contents suggest that glass‐making was not limited to the traditional regions of the Levant and Egypt, and a production origin in or near western Anatolia is proposed. Glass bracelets from ?i?n al‐Tīnāt in southern Turkey give fresh evidence for the production and circulation of high‐boron glasses that closely correlates with object typology. The patterning of findspots suggests that high‐boron glass was closely connected to the Byzantine world.     

Die subjektive Objektivität der mittelalterlichen Medizin

The problem of ‘reality’ and ‘realism’ is rarely discussed in medieval medical texts, although medieval medicine is based on objectivity. There are three reasons why medieval physicians were so sure about their image of human nature: the convincing model of humoral pathology, the undoubted truth of tradition, and the suggestive similarities between worldly things and their presumed divine purpose. Thus, individual cases were only examples of the common theory of medicine and were by no means able to change it.     

Romantischer Dilettantismus — Johann Wilhelm Ritter und die Begründung der Elektrochemie

In this paper the psychological and historical problems of the german philosophy of nature at the time about 1800 are described. During this time the romantic philosopher and scientist of nature Ritter developed a new scientific branch of knowledge: the electrochemistry. Ritter represents exemplarily the type of a romantic dilettante. In this period, the problem of dilettantism got a new validity, especially by Goethe and Schiller: it was recognized as a positive power of human. In the romantic dilettantism of Ritter three aspects are shown: 1st, romantic dilettantes are intellectual flaneurs; 2nd, romantic dilettantes confront facts and general provisions, which up to this moment are supposed to be paradox, and obtain by this method a synthesis; 3rd, romantic dilettantes favour the intuitive power.     

Die Komplementarität von interner und externer Wissenschaftsgeschichte

In studies of the history of science two apparently diverging ‘ideal types’ can be distinguished. The internal analysis relies on methodology and on the philosophy of science and concentrates on the cognitive system and on the sequence of theories. The external analysis relies on sociology, the history of institutions, biographies, etc. and concentrates on the social system and on the interrelationship between science and society. Neither of the two approaches can claim to cover the whole truth and to give the only possible (causal) explanation, The cognitive content of scientific theories and the social process of bringing about and using them are by their very nature complementary.     

Von der Naturgeschichte zur Naturwissenschaft Die Naturwissenschaften als eigenes Fachgebiet an der Universität Jena

Since 1790, the term Naturwissenschaften occurs in the lecture lists of the University of Jena published in the Allgemeine Literatur-Zeitung of Jena. Naturwissenschaften is used as a title for lectures previously listed under the headings of Philosophie or Naturgeschichte. The introduction of the concept of Naturwissenschaften is interesting for several reasons: Firstly, at that time it is not the usual label in this context, and one therefore has to ask whether it already implies the connotations that are associated with the modern concept of Naturwissenschaften, i. e. science in the modern sense. Secondly, the lecture lists of the University of Jena give insight into the various changes in the established ordering scheme for academic lectures that lead to the introduction of the term Naturwissenschaften, thus contributing to a better understanding of both the history of this concept and of the development of the university faculties as we know them. A close look at the concept of Naturwissenschaften as it was used around 1800 may, thirdly, help to understand the use made of this concept in philosophy, especially in the philosophy of nature of this period.     

Wisse die Wege! Hildegard von Bingen zum 900. Geburtstag

Hildegard is regarded as one of the most important women of the Middle Ages. Her contemporaries from all over the world wrote letters to her searching for help and prayer. Universally working she wrote works about medicine, natural history, compositions of chants for the honour of God and his creation and more than three hundred letters to people all over the world including the popes and the emperor. Hildegard's work and the way she understood herself were strongly marked by vision and prophecy. Her works were of divine origin by vision and audition. Her aim was the religious interpretation of the whole universe and a Christian life in the sense of the bible. Heaven and earth, faith and natural science, medicine and religion, the human existence in all its facts and potentials, everything was a mirror of divine love to her. In her first work Scivias ("Know the Ways") she is considering on the history of creation and salvation, from the origin of the world and of man over Christ's salvation to the fulfillment at the end of times. In the centre is standing the human being as microcosm reflecting the whole world in all conditions and laws. Man is the main work of god, reflecting in his doing and thinking God's love. Man has to know the ways that means to live the life of love in all consequences including reproduction by creating a new human being for the praise of God.     

近年来中国旅游开发与管理态势研究

本文对处于产业结构剧烈转型时期的中国旅游业的发展态势进行了较深入的阐述,这一观察主要从旅游区(点)和旅游资源的开发与管理这一特定角度切入,重点从假日峰值压力、旅游目的地营销、旅游规划、旅游产品创新、旅游支持系统等几个方面加以讨论。     

试论虚谷绘画风格的形成和发展

虚谷是晚清“海派”名家之一,以其冷隽奇峭的画风震人心弦。本通过对其人生过程的梳理,分析和论述了他的思想、心态及审美追求对其画风形成发展的影响和作用。     

古玉器的无损检测体系

目前古玉辨伪只是根据目视的经验来鉴别古玉材质。由于其种类繁多,产地各异,再加各种沁色,有时难以分辨真伪。10种无损检测方法的应用,根据客观的测试数据可以可靠地分辨古玉材的真伪。