Photoluminescence and photoluminescence excitation spectra from AlN doped with Gd3+

The photoluminescence (PL) spectra from Al0.98Gd0.02N andAl0.87Gd0.13N consisting of Gd3+ related 3.95 eV sharp emis-sion lines and other bands, and the PL excitation (PLE) spec-tra from 3 to 7 eV have been investigated by using a highly linear polarized synchrotron radiation light source. The Gd related 3.95 eV sharp lines in the PL spectra are similar to those in other cathodoluminescence (CL) and PL research. However, the broad emission bands around 3.95 eV lineswhich are normally found in other CL works are not ob- served. Other broad emission bands are clearly observed in the energy region of 1.5 ~ 3.5 eV. PLE spectra monitored at both the 3.95 eV sharp line and the broad emission band ofAl0.98Gd0.02N clearly indicate that these emission processes are host excitations which are reflected by an AlN-like band structure and crystalline anisotropy. On the other hand, the PLE and optical reflectance spectra of Al0.87Gd0.13N reveal an unclear band structure with a long band tail in the lower en-ergy side

Molecular tumorigenesis of the skin

Skin tumors are supposed to develop through accumulations of genetic and/or epigenetic events in normal cells of the skin. Among them, we focus on common skin tumors, including benign, seborrheic keratosis, and malignant, squamous cell carcinoma and melanoma. Many important molecules have been detected on the molecular tumorigenesis of each of them to date, and some drugs targeted for their molecules have been already developed. We review updates on the molecular tumorigenesis of these tumors with our current works

[23-1]English Summaries of the Papers Contributed to Tonan Ajia Kenkyu (The Southeast Asian Studies) Vol.23, No.3 (Special Issue for Don Daeng : An Integrated Village Study in Northeast Thailand)

Tonan Ajia Kenkyu (The Southeast Asian Studies) = 東南アジア研究 (Japanese Journal of Southeast Asian Studies)[1]EDITOR'S NOTE … Hayao FUKUI[2]A Brief Look at the Village … Yoshihiro Kaida, Masuo Kuchiba[3]Typology of Rice Cultivation … Shuichi MIYAGAWA, Toshiro KURODA, Hiroyuki MATSUFUJI, Tomoo HATTORI[4]Instability of Rice culture … Yoshihiro KAIDA, Kazutoshi HOSHIKAWA, Yasuyuki KOHNO[5]POPULATION (I) … Hayao FUKUI[6]The Process of Emigration in Search of Good Land to Mo Nua Village, Udonthani Province … Yukio HAYASHI[7]An Economic Analysis of Endogenous Rural Economic Evolution and its Policy Implications … Hiroshi Tsujii[8]Kin Relationships and Kin Cooperation for Farming and Consumption … Masuo KUCHIBA, Takahiro TAKEMURA[9]Daily Activity Survey (1) … Satoshi KOIKE, Shinji SUWA, Haruo NOMA[10]Sharing of Merit and the Associated Social Relationships of Funeral Rites … Yukio HAYASHI[11]AN OVERVIEW ON NATURE, AGRICULTURE AND ECONOMY … Hayao FUKU

A Two-tier Overlay Publish/Subscribe System for Sensor Data Stream Using Geographic Based Load Balancing

AINA 2013: 27th International Conference on Advanced Information Networking and Applications Workshops, Mar 25-28, 2013, Barcelona, SpainPublish/Subscribe mechanism is one of key technologies for handling real-time data stream in decentralized environments. While recent studies have showed that publish/subscribe systems should support not only data filtering but also in-network data processing, scalability issue is addressed due to data concentrations on specific nodes. To solve the scalability issue, we propose a Publish/Subscribe system consisting of two-tier overlay network: one overlay network is designed as a geographic overlay network, which is used to maintain fundamental information, on the other hand, data transfer networks are constructed to perform in-network data processing and dynamic load balancing. By using these two networks, we could implement geographic based dynamic subscription reallocation mechanism. This mechanism enables to achieve scalability and avoid data/load concentrations on large-scale Publish/Subscribe systems. We present an evaluation of the our approach through simulation. We compare our approach to another DHT based Publish/Subscribe system, focusing on data transfer during subscription. Our results show that our dynamic subscription reallocation approach avoids data concentration to specific node