The little versified treatise on the elements of Buddhist logic, often referred to as the Hetucakra?amaru, is usually attributed to Dignāga. It is only available in a Tibetan translation and quotations from a few of its verses are extant in Sanskrit sources. On the basis of a novel interpretation that is based on a critical edition of the text, we argue that there is a good reason why its title was Hetucakra?amaru - a ?amaru is a two-headed drum. The “heads” of the drum are circular and they refer to the sapak?a and vipak?a conditions of the logical reason (hetu). These “wheels” can be turned clock-wise and counter clock-wise. The nine positions that are located on the wheels do remind one of a dharmacakra, which has a center and eight positions that are placed around it as if it were a compass. We illustrate our interpretation of the text by means of various diagrams. 相似文献
The application of GIS in the public security industry is generally called “Police Geographic Information System (PGIS)” in Mainland China. Although China’s PGIS play important roles in protecting public safety and smart policing, no publications on this subject are found in English. This paper provides an overview of the four main development stages of PGIS in public security agencies in mainland China: the early exploration stage; the multi-department PGIS system development stage; the centralization stage; and the spread and improvement stage. Successful GIS applications and practices in local police departments are also introduced in this paper. At the end of this paper, three problems and challenges faced in the development of PGIS are introduced, involving the current PGIS application depth; the support of crime mapping and crime analysis theoretical research on policing practices; and the introduction and localization of mature foreign crime analysis and prediction technology. Additionally, we point out that the implementation of smart policing strategies under the context of big data has created favorable conditions for subsequent crime analysis, research, and application, encouraging police departments to more frequently take initiative by cooperating with research institutions in crime analysis and prediction technology research. These new opportunities will inevitably promote the rapid development of PGIS and the geography of crime in China.