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Takashi Takata,Yasusei Kudo,Hiroko Hatano,kuko Ogawa,Samadarani Siriwardena,Shoïro Kitajima,Masae Kitagawa,Mutsumi Miyauchi 대한구강악안면병리학회 2007 대한구강악안면병리학회지 Vol.31 No.2
Oral squamous cel1 carcinoma(OSCC) is the most common malignancy of head neck region. Typically OSCC cells s how persist ent invasion that frequently leads to local recurrence and distant lymphatic metastasls However, molecular mechanisms of invasion of OSCC remain poorly understood. Her e we identifi ed periostin, interferon induced transmembrane protein l (IF1TM1) and wingless-type MMTV integration site family, member 5B(WNT5B) , as invasion promoting molecules in OSCC by comparing gene expression profiles between a parent OSCC cell line(MSCC-l) and its highly invasive clone(MSCC-1nvl). Overexpression of periostin, IFITMl and WNT5B mRNAs were confirmed in MSCC-1nvl by RT-PCR. Transfection of these molecules promoted invasion of OSCC cells Moreover , siRNA t r eatment of these molecules suppressed invasion of cancer cells in vitro I nter estingly, Periostin, 1F1TMl and WNT5B were highly expressed in OSCCs in comparison with nonnal tissues. 1n an orthotopic mouse model of OSCC, periostin-overexpressing cells metas tasized spontaneously to cervical lymph nodes and t o t he lung through their aggressive invasiveness. These findings suggest that peri ostin, IFITMl and WNT5B play important roles for invasion and of OSCC and can be prognostic markers and therapeutic t argets of OSCC.
Development of Throw Type Automatic Photographing Device
Sho Katayama,Takashi Takimoto 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
In disaster, it is important to photographs and video from the sky. Aerial photographing devices such as helium gas balloons and helicopters have ever been used for information gathering activities at that time. However, these devices have a high risk because they are strongly affected by air stream at low airspace. As the new photographing device improving the above problem, in this paper, we have developed a throw type photographing device packaged in a plastic capsule egg, and proposed an automatic photographing system. The photographing device is controlled by the control circuit with an accelerometer and takes a photograph when it reaches the top of air. The accelerometer is used to calculate the time that the device until photographing. Moreover, we take aerial photographs in practice and show the effectiveness of the proposed system.
A Study on Spin-rate Measurement Using a Uniquely Marked Moving Ball
Sho Furuno,Kazuyuki Kobayashi,Tomoyuki Okubo,Yosuke Kurihara 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
A method is proposed for measuring the spin rate of a ball moving through 3D space. The method uses only one high-speed camera and a uniquely marked ball. Five lines, each one a different color, are painted on the??ball’s equator and on its perpendicular great circle, enabling measurement of both the rotational angular velocity (spin rate) and translational velocity. The proposed measurement algorithm consists of two steps. The first step is to measure the translational velocity, for which we developed a new semi-automatic translational speed measurement algorithm. The second step is to measure the ball spin rate employing a unique marker tracking method using a spin rate estimation algorithm based on a rotation matrix. Simulations and experiments were carried out to show the validity of the method, and reasonable results were obtained.
Studyon Human body Motion Interface
Sho Yokota,Hiroshi Hashimoto,Yasuhiro Ohyama,Jin-Hua SHE,Daisuke Chugo,Hisato Kobayashi,Pierre Blazevic 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
The joystick is the operation interface of electric wheelchair. The user needs to operate it in accordance with machine’s operational procedure specifications. Therefore the joystick is convenience operation system for the system side rather than the user side We focus on the body motions which humans have, and tryto realize a new type of interface which replaces conventional joystick. There is a body motion which comes from in stinctive adjustment functions to control changes of body shape caused by voluntary actions. We use this kind of motion as an interface and call it HBMI(Human Body Motion Inerface). In this paper, we set a prototype based on the experiment for deriving a suitable measurement to detect human body motion. The evaluation of HBMI by using SD method is also presented.
Effects of Intrinsic Noise in Temperature-compensated Models for Circadian Rhythms
Sho Ichikawa,Yohei Ito,Gen Kurosawa,Kenko Uchida 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Circadian rhythms, which are observed in most of organisms, e.g. bacteria, fungi, plants, and animals, are self-sustained oscillations with about 24 hours period and a remarkable temperature compensation property. By using the temperature-compensated and robust temperature-compensated deterministic models for circadian rhythms, we perform the stochastic simulations based on the Gillespie’ method by changing temperature over a wide range, and discuss how the deterministic temperature compensation properties fluctuate over the range of temperature in the stochastic setting reflecting the intrinsically noisy environments. In order to strengthen the inference from the stochastic simulations, we also execute a qualitative analysis based on the linear noise approximation.