Akira Ishida

Publication List Details

Period

1991 - 2008

Number

21

Co-Authors

On the general action of boundary (super)string field theory (2008)

Ishida, Akira, Teraguchi, Shunsuke

We reconstruct boundary superstring field theory via boundary states. After a minor modification of the fermionic two-form, all the equations needed for Batalin-Vilkovisky formulation are simply...

Tachyon Vacuum Solution in Open String Field Theory with Constant B Field (2008)

Ishida, Akira, Kim, Chanju, Kim, Yoonbai, Kwon, O-Kab, Tolla, D. D.

We show that Schnabl's tachyon vacuum solution is an exact solution of the equation of motion of Witten's open bosonic string field theory in the background of constant antisymmetric two-form field....

Negative-Tension Branes and Tensionless 1/2 Brane in Boundary Conformal Field Theory (2008)

Ishida, Akira, Kim, Chanju, Kim, Yoonbai, Kwon, O-Kab

In the framework of boundary conformal field theory we consider a flat unstable D$p$-brane in the presence of a large constant electromagnetic field. Specifically, we study the case that the...

Lower Dimensional Branes in Boundary Conformal Field Theory (2008)

Ishida, Akira, Kim, Yoonbai, Kim, Chanju, Kwon, O-Kab

In the presence of constant background electromagnetic fields, we discuss three types of exactly marginal boundary tachyon operators for static kinks in boundary conformal field theory. Functional...

BPS Limit of Multi- D- and DF-strings in Boundary String Field Theory (2007)

Go, Gyungchoon, Ishida, Akira, Kim, Yoonbai

A BPS limit is systematically derived for straight multi- D- and DF-strings from the D3D3bar system in the context of boundary superstring field theory. The BPS limit is obtained in the limit of thin...

Homogeneous Rolling Tachyons in Boundary String Field Theory (2006)

Ishida, Akira, Kim, Yoonbai, Kouwn, Seyen

We study decay of a flat unstable D$p$-brane in the context of boundary string field theory action. Three types of homogeneous rolling tachyons are obtained without and with Born-Infeld type...

Tachyon condensation in unbalanced D-anti D system (2006)

Ishida, Akira, Uehara, Shozo, Yada, Tomoki

The tachyon condensation is studied in asymmetric D-anti D systems. Taking a system of two pairs of D5-anti D5 in type IIB superstring theory in the background of large N D5-branes, we show that one...

Tratamento cirúrgico do quadril displásico inveterado (2006)

Dobashi,Eiffel T., Kiyohara,Robinson Toshimitsu, Matsuda,Marcelo Mitsuro, Milani,Carlo, Kuwajima,Sérgio Satoshi, Ishida,Akira

Avaliamos 50 pacientes (57 quadris) com Displasia do desenvolvimento do Quadril Inveterada, divididos em 2 grupos de acordo com o tratamento aplicado. O grupo A foi constituído por 20 pacientes (24...

In vivo antitumor activity of the NF-{kappa}B inhibitor dehydroxymethylepoxyquinomicin in a mouse model of adult T-cell leukemia (2005)

Ohsugi, Takeo, Horie, Ryouichi, Kumasaka, Toshio, Ishida, Akira, Ishida, Takaomi, Yamaguchi, Kazunari, ...

Adult T-cell leukemia (ATL) is an aggressive neoplasm caused by human T-cell leukemia virus type I (HTLV-I). The nuclear transcription factor, NF-κB, is induced by HTLV-I and is central to the...

In vivo antitumor activity of the NF-{kappa}B inhibitor dehydroxymethylepoxyquinomicin in a mouse model of adult T-cell leukemia (2005)

Ohsugi, Takeo, Horie, Ryouichi, Kumasaka, Toshio, Ishida, Akira, Ishida, Takaomi, Yamaguchi, Kazunari, ...

Adult T-cell leukemia (ATL) is an aggressive neoplasm caused by human T-cell leukemia virus type I (HTLV-I). The nuclear transcription factor, NF-κB, is induced by HTLV-I and is central to the...

Rolling down to D-brane and tachyon matter (2003)

Ishida, Akira, Uehara, Shozo

We investigate the spatially inhomogeneous decay of an unstable D-brane and construct an asymptotic solution which describes a codimension one D-brane and the tachyon matter in boundary string field...

Gauge Fields on Tachyon Matter (2002)

Ishida, Akira, Uehara, Shozo

We study the rolling tachyon including the gauge fields in boundary string field theory. We show that there are no plane wave solutions for the gauge fields for large time. The disappearance of the...

Tratamento cirurgico da doenca de Legg-Calve-Perthes pela osteotomia de Salter: estudo de 37 quadris apos o fechamento das placas de crescimento. (1999)

Ishida, Akira.

O autor analisa os resultados clinicos e radiograficos de 32 pacientes (37 quadris) portadores da DLCP e submetidos a osteotomia de Salter no periodo de 1979 a 1992. Vinte e quatro pacientes eram do...

Aluminized Coatings on Titanium Alloys and TiAl Intermetallic Compound. (1998)

Takei, Atsushi, Ishida, Akira

An investigation of aluminized coatings on titanium alloys and TiAl intermetallic compound is presented. The aluminizing was carried out by pack cementation at temperatures between 1073 and 1273 K....

採石跡地における植生の回復および土壌の生成について (1994)

竹田, 泰雄, TAKEDA, Yasuo, 横田, 岳人, YOKOTA, Taketo, 石田, 朗, ISHIDA, Akira, ...

農林水産研究情報センターで作成したPDFファイルを使用している。

Estudo artrografico do quadril na doenca de Legg-Calve-erthes. (1991)

Ishida, Akira.

Doutor -- Escola Paulista de Medicina, Sao Paulo, 1991.

Left ventricular preload reserve in preterm infants with patent ductus arteriosus

Takahashi, Yasushi, Harada, Kenji, Ishida, Akira, Tamura, Masamichi, Takada, Goro

The left ventricular Frank-Starling response was studied in 15 preterm infants, less than 1500 g birth weight, and in 16 fullterm infants with patent ductus arteriosus. Left ventricular end diastolic...