Haruhisa Hayashi

We developed an AR molecular graphics application for chemical education at secondary level. Flash which can execute on all platforms is used as a programming language for software development for smartphone, which the possession rate of which in junior and senior high school students is high. By developing and mounting the AR function, students can examine molecular graphics in 3D or when they look at a marker printed in a text or a handout just to read. To develop the web interface for making molecular data, the teacher can use molecular graphics in 3D easily when necessary.

In April 2013, the University of Hyogo was transformed into the municipal university corporation. Therefore, the business-use systems for financial, traveling-expenses, personal affairs and salary, which was using the prefectual system by exclusive-use PCs, s introduced newly. Furthermore, the cost of such a change would be considerable, we have discussed the burden sharing with the Hyogo prefecture. In this paper, we explain the design and introduction of new systems.

兵庫県立大学では，教育および研究のインフラとなる情報システム (ネットワークシステム・情報処理教育システム・遠隔授業システム・学生情報システム・図書システム) のリプレイスをおこない，2009 年 3 月から運用を開始した．これら新システムの構築と移行などに関して報告する．We planned to replace some information systems (such as network system, information processing education system, distance learning system, student information system and library information system) as infrastructure of academic activities for the University of Hyogo, and have started these operation at March 2009. In this paper, we report our construction and switchover to new systems.

2004 年 4 月に県立大学が統合し発足した兵庫県立大学は，6 つのキャンパスや研究所などが広く県内に点在している．これに伴い，独自 DV 方式により各キャンパスを結ぶ双方向配信可能な遠隔授業システムを導入した．本稿ではこの遠隔授業システムの運用評価と，新システム導入に向けた課題点・改善点などを報告する．The University of Hyogo was inaugurated by integrating prefectural universities in April 2004 would consist of six campuses and some laboratories, scattered across Hyogo Prefecture. Therefore, we introduced the Distance Learning System using digital video over IP, with interactive communications between each campus. We report our evaluation of this system and improvement in the next system.

Firefly luciferase is a well-known enzyme that participates in the bioluminescence reaction. Recently, it was reported that this enzyme also exhibits enantioselective thioester formation activity of 2-arylpropanoic acid such as ketoprofen. However, the enantiodifferential mechanism was still unknown. Therefore to clarify the reason of enantioselective thioester formation toward ketoprofen, we have performed molecular dynamics (MD) simulations for three kinds of firefly luciferase / acyl-AMP intermediate analogue complexes. Targeted substrates were N-acylsulfamate derivatives of R-ketoprofen, S-ketoprofen and 3-benzoylphenylacetic acids. Our results show that the dynamic behavior of Ser200 and Ser201 around the asymmetric carbon atom in the complexes is quite different.

In controlling spam mails, it is important not only to reduce spam mails, but also to deliver non-spam mails. It is also important to lower the cost in small and medium enterprises. The anti-spam method using greylisting only after working hours and throttling was implemented at Technology Research Institute of Osaka Prefecture. And we tried to reduce spam mails without maintenance of white list and database. In this paper, we describe the usefullness of this method from questionnaire survey and mail log analysis. After that, we report the result that we tried to reduce spam mails in the university laboratory with this method.

It is known that RNA modified with the pyrenyl group (pyren-RNA) which uses the pyrene moiety as a fluorescent chromophore shows a remarkable increase in fluorescence when the double helix is formed with the complementary strand RNA, compared to the single strand pyrene-RNA, and that this phenomenon is not seen with DNA. For the purpose of designing a sequence recognition probe based on these phenomena, detailed data of the pyrenyl moiety in the pyrene-RNA and pyrene-DNA of double stranded structures are observed with MD simulation. In addition, the influence of mismatched combination of base in the complementary strand was examined. As a result, it was revealed that in the full-match double stranded pyrene-DNA the pyrene moiety stays inside the helix but in the full-match double stranded pyrene-RNA pyrene was thrusted out of the helix. Mismatch sequence in the pyrene-RNAdouble strand influenced the behavior of the pyrenyl moiety when the mismatch position was located close to the pyrene modified position.

By using the public/commercial wide-area and broadband network (EoMPLS and ATM-MPLS etc) as the campus intranet, it seems as though the scattered campuses are in the same Local Area Network. We constructed the computer network system using such a network, to receive the same service for all users in each campus. In the educational institution, the utilization of such network service is expected to apply the distance learning with high quality video and sound. Therefore we show two cases of the system implementation and operation using the wide-area and broadband network with the educational institution.

Greylisting is known as one of the highest effective method within anti-seam method. However, it has issues that requires the maintenance of the list, and forces delivery delay of e-mails. So, we tried to resolve those issues by transfering e-mails without retransmission request during working hours. And also we used throttling to try to reduce spam mails during working hours. In this paper, we report on the controlling spa mails with greylisting and throttling, and it's effectiveness.

The University of Hyogo was inaugurated by integrating three prefectural universities in April 2004. Using the 'Hyogo Information Highway' network as the campus intranet, we constructed the Student Information System, the Library System, the Computer System for Education, and the Distance Learning System (DV and H.323). In this paper, we report our reconstruction, implementation and operation of those systems.

"Modrast-P", which we have developed, has distinctive functions for displaying molecular models, especially, the capacity to display models clipped by single or double plane(s). This function is useful to show inner structures of inclusion complexes or active sites of bio-molecules, which are otherwise hidden by outer parts of molecules. However, Modrast-P was dependent on hardware and OS, so we improved this program using GTK+, which was one of the toolkits of the X Window System, and named it "Modrast-P with GTK+". For the clipping function, the operations to specify the clipping plane are facilitated with GUI (graphical user interface). In addition, some useful functions such as animation and numerical analysis for results of Molecular Dynamics (MD) simulation with AMBER have been implemented.

AMBER (Assisted Model Building with Energy Refinement) is a powerful tool for simulations of bio-molecules and so on. To simulate DNA molecules with new residues that are not registered in the AMBER database, it is necessary to register them on this database by using one of the AMBER modules, PREP. However, the format of the PREP input file is very complicated, and it is hard to make by hand. Therefore, in this work, in order to make the PREP input file interactively with visualization, we add a function to our molecular structural display system, "Modrast-P". By using this function, the PREP input file can be made easily and efficiently.

A support program for AMBER was developed on the basis of the biomolecular graphics program “Modrast-P". This program has three features, which are : 1) Setting up of input files for AMBER. It is easy and efficient to make input files for AMBER modules (Figure 1) by using interactive and graphical operations. 2) Molecular modeling for building the initial structure of the molecule for molecular dynamics calculation by use of the extended function of Modrast-P. 3) Animations of atomic trajectory files from molecular dynamics simulations, calculations of atom-to-atom distances and the extraction of potential energies from output files in order to draw graphs for getting quantitative information, are possible.As an example use of this program, the structure of DNA containing anthraquinone groups was simulated (Figures 2,3).This program runs on any UNIX workstations and personal computers where PC-UNIX, such as Linux, are installed.