Oscillation criteria are obtained for solutions of forced and unforced second order neutral differential equations with positive and negative coefficients. These criteria generalize those of Manojlović, Shoukaku, Tanigawa and Yoshida (2006).

It has recently been reported that molecular targeting drugs fail to overcome the “oncogene/oncogenic signaladdiction” of cancer cells. Tumor tissue is composed of heterogeneous cancer cells, so that the therapeutic response is difficult to predict. Recent advance in cancer research has strongly suggests that cancer stem cells contribute to the formation and maintenance of the heterogeneous cel...

1 Department of Computer Science, Graduate School of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan 2 Computational Biology Research Center (CBRC), National Institute of Advanced Industrial Science and Technology (AIST), 2-43 Aomi, Koto-ku, Tokyo 135-0064, Japan 3 Department of Intelligence Science and Technology, Graduate School of Informatics, Kyot...

Author details Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan. Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno-shi, Hyogo Japan. Department of Radiation Oncology, Kobe Minimally Invasive Cancer Center, Kobe University Hospital ...

In recent years, the studies on the enhancement of the prediction capability of the sheet metal forming simulations have increased remarkably. Among the used models in the finite element simulations, the yield criteria and hardening models have a great importance for the prediction of the formability and springback. The required model parameters are determined by using the several test results,...

AUTHORS’ NOTE: The authors would like to express their gratitude to Toshiko KIKKAWA of Keio University for her invaluable support and constructive suggestions throughout the course of this work. This game was designed while taking part in the course “Information Literacy,” taught by Yuhei YAMAUCHI, of The University of Tokyo. The authors are grateful for the cooperation of the group members who...

Introduction
 The meticulously arranged hierarchical structure of the biliary tree is pivotal for liver function. This divided into intra and extrahepatic components. anatomic variations are notoriously common with studies reporting in 20% to 55% population different parts world. may result misdiagnosis serious injury system during surgical procedures. Thus, accurate knowledge essential in...