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Takei Mari,Nin Charles,Iizuka Tomona,Pawlikowski Marine,Selva Marie-Ange,Chantran Yannick,Nakajima Yurie,Zheng Jingkang,Aizawa Tomoyasu,Ebisawa Motohiro,Sénéchal Hélène,Poncet Pascal 대한천식알레르기학회 2022 Allergy, Asthma & Immunology Research Vol.14 No.3
The Capsicum genus belongs to the Solanaceae family. Bell or chili peppers are consumed worldwide, but allergy to Capsicum is rare. It is involved in the celery-birch-mugwort-spice syndrome and cross-reactivities were reported with latex. Several allergens have been described, but only 2 are referenced in the World Health Organization/International Union of Immunological Societies allergen data bank, a thaumatin-like protein and a profilin. A patient allergic to bell/chili pepper, peach, orange and Japanese cedar pollen was clinically and biologically analyzed including direct and competitive immunoblots and basophil activation tests (BATs) with allergenic source extracts and recombinant gibberellin-regulated proteins (GRPs). The patient was shown to be sensitized to Cap a 7, the GRP of Capsicum annuum newly described herein. Cross-reactivities were demonstrated between various GRPs from bell/chili pepper, peach, orange and Japanese cedar pollen either in native form in the different extracts or as recombinant allergens. A similar immunoglobulin E reactivity was found also in Capsicum chinense and against snakin-1, the GRP from potato. The patient showed a positive BAT with recombinant Cry j 7, Pru p 7 and Cap a 7, but not with recombinant snakin-1. Despite the ubiquitous nature of GRPs in plants and the immunochemical cross-reactivity observed between different GRPs, clinically relevant sensitization to this protein family seems restricted to some allergenic sources, often associated with Cupressaceae pollen allergy, and to some patients, therefore reflecting very specific and peculiar mechanisms of conditional sensitization.
Doh, D. H.,Jo, H. J.,Hwang, T. G.,Koo, B. Y.,Takei, M.,Tanaka, T.,Uemura, T. Taylor Francis 2009 Chemical engineering communications Vol.196 No.12
<P> An adaptive stereoscopic-PIV system has been constructed for flow analyses around a cylinder body (length = 60 mm, diameter = 10 mm, polystyrene). The body is floated by the swirling flows in a vertical pipe with a length of 1100 mm and an inner diameter of 100 mm. Four optical sensors (LEDs) were installed onto the pipe wall to detect the posture of the cylinder body. The constructed stereoscopic-PIV system is activated by the signals of the optical sensors when the cylinder is in the upright posture. The measurement system consists of two cameras, a Nd-Yag laser, and a host computer. Flow characteristics around the floating cylinder body and the motional characteristics of the body itself are investigated when the body is in the upright posture. It has been verified that the motion of the floating cylinder becomes stable when the azimuthal velocity component (W component) of the swirl flow is maintained at stable states.</P>
Flow Analysis around a Floating Cylinder in a Swirl Flow with a Stereoscopic-PIV
Doh D.H(도덕희),Hwang T.G(황태규),Tanaka K(다나카 코지),Takei M(타께이 마사) 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
The flow characteristics around a floating cylinder in a swirling flow field in a vertical pipe with a length of 600㎜ and an inner diameter of 100mm is investigated by the use of the Stereoscopic-PIV system. The measurement system consists of two cameras, a Nd-Yag laser and a host computer. Optical sensors(LEDs) were used to detect the location of the floating cylinder and to activate the Stereoscopic-PIV system. A conditional sampling Stereoscopic-PIV system was developed in which the flow fields around the floating cylinder are measured at the events of the activations. It has been verified that the motion of the floating cylinder becomes stable when the azimuthal velocity component of the swirl flow is maintained at stable states.
Nanoscale Bipolar and Complementary Resistive Switching Memory Based on Amorphous Carbon
Yang Chai,Yi Wu,Takei, Kuniharu,Hong-Yu Chen,Shimeng Yu,Chan, Philip C. H.,Javey, Ali,Wong, H.-S Philip IEEE 2011 IEEE transactions on electron devices Vol.58 No.11
<P>There has been a strong demand for developing an ultradense and low-power nonvolatile memory technology. In this paper, we present a carbon-based resistive random access memory device with a carbon nanotube (CNT) electrode. An amorphous carbon layer is sandwiched between the fast-diffusing top metal electrode and the bottom CNT electrode, exhibiting a bipolar switching behavior. The use of the CNT electrode can substantially reduce the size of the active device area. We also demonstrate a carbon-based complementary resistive switch (CRS) consisting of two back-to-back connected memory cells, providing a route to reduce the sneak current in the cross-point memory. The bit information of the CRS cell is stored in a high-resistance state, thus reducing the power consumption of the CRS memory cell. This paper provides valuable early data on the effect of electrode size scaling down to nanometer size.</P>
Nakajima, K.,Yin, X.,Takei, Y.,Seog, D.H.,Homma, N.,Hirokawa, N. Cell Press 2012 Neuron Vol.76 No.5
KIF5 (also known as kinesin-1) family members, consisting of KIF5A, KIF5B, and KIF5C, are microtubule-dependent molecular motors that are important for neuronal function. Among the KIF5s, KIF5A is neuron specific and highly expressed in the central nervous system. However, the specific roles of KIF5A remain unknown. Here, we established conditional Kif5a-knockout mice in which KIF5A protein expression was postnatally suppressed in neurons. Epileptic phenotypes were observed by electroencephalogram abnormalities in knockout mice because of impaired GABA<SUB>A</SUB> receptor (GABA<SUB>A</SUB>R)-mediated synaptic transmission. We also identified reduced cell surface expression of GABA<SUB>A</SUB>R in knockout neurons. Importantly, we identified that KIF5A specifically interacted with GABA<SUB>A</SUB>R-associated protein (GABARAP) that is known to be involved in GABA<SUB>A</SUB>R trafficking. KIF5A regulated neuronal surface expression of GABA<SUB>A</SUB>Rs via an interaction with GABARAP. These results provide an insight into the molecular mechanisms of KIF5A, which regulate inhibitory neural transmission.