Experimental DML over digital repositories in Japan

In this paper the authors show an overview of Virtual Digital Mathematics Library in Japan (DML-JP), contents of which consist of metadata harvested from institutional repositories in Japan and digital repositories in the world. DML-JP is, in a sense, a subject specific repository which collaborate with various digital repositories. Beyond portal website, DML-JP provides subject-specific metadata through OAI-ORE. By the schema it is enabled that digital repositories can load the rich metadata which were added by mathematicians

Status of mathematical publication in Japan: SPARC Japan and institutional repositories play an essential role

When we use MathSciNet, we can find a number of mathematical journals published in Japan. However, it is uncertain how many different titles of mathematical journals are published and how many articles appeared in them. We should have been aware of this fact. For example, about 10 titles of major mathematical journals, which are supported by SPARC Japan, IR of Kyoto University Library, and IR of the University of Tokyo Library, account for approximately 5 to 10 percent of articles in certain research fields in the world (Figure 1). Also, we can note from this figure that the number of articles published in Japan is not far behind the number published by Springer and Elsevier. From these facts, it is clear that SPARC Japan and institutional repositories play an important role for mathematical publications in the world. These major journals contain about 1000 articles each. However, according to MathSciNet, there are over 100 titles of mathematical journals and university bulletins containing less than 200 articles each. Including these titles, contributions of Japanese mathematical publication to the world will achieve more recognition

Safety of smoke generated by Japanese moxa upon combustion

AbstractIntroductionMoxibustion is an ancient method of traditional medicine (along with acupuncture) using moxa, or processed mugwort leaves. Both the smoke and heat generated by burning moxa are considered to have therapeutic effects. However, recently there have been reports of harmful substances released in smoke from everyday objects such as scented candles or incense. Therefore it appeared to be important to evaluate the safety of products resulting from the combustion of moxa.MethodsWe used three types of commonly used moxa. Experiments were conducted by lighting moxa which had been classified according to their level of refinement. Gases released were collected after igniting moxa. A gas chromatograph mass spectrometer (GC/MS) was used for both qualitative and quantitative analysis. Standard conditions for Japanese therapeutic environments were employed.Results1,3-butadiene was present from the smoke at the highest level of concentrations of substances governed by assorted indoor air quality and environmental standards (1,3-butadiene, benzene, toluene, ethylbenzene, and xylene) and fell below maximum values. Also, simulation in an indoor environment with 1,3-butadiene was safely within indoor environmental standards.ConclusionOur simulation results have shown that quantities of harmful substances released upon combustion of moxa during normal clinical therapy of Japan are below maximum levels. Hence are safe for both patient and practitioner. However we detected few amounts of harmful substances released from moxa. These harmful substances are invariably generated upon combustion, although varieties and quantities vary according to substance. So measures to maintain an appropriately safe work environment must be practiced, even though safety was confirmed