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The supraorbital and supratrochlear nerves for ipsilateral corneal neurotization: anatomical study
Shogo Kikuta,Bulent Yalcin,Joe Iwanaga,Koichi Watanabe,Jingo Kusukawa,R. Shane Tubbs 대한해부학회 2020 Anatomy & Cell Biology Vol.53 No.1
Neurotrophic keratitis is a rare corneal disease that is challenging to treat. Corneal neurotization (CN) is among the developing treatments that uses the supraorbital (SON) or supratrochlear (STN) nerve as a donor. Therefore, the goal of this study was to provide the detailed anatomy of these nerves and clarify their feasibility as donors for ipsilateral CN. Both sides of 10 fresh-frozen cadavers were used in this study, and the SON and STN were dissected using a microscope intra- and extraorbitally. The topographic data between the exit points of these nerves and the medial and lateral angle of the orbit were measured, and nerve rotation of these nerves toward the ipsilateral cornea were attempted. The SON and STN were found on 19 of 20 sides. The vertical and horizontal distances between the exit point of the SON and that of the STN, were 7.3±2.1 mm (vertical) and 4.5±2.3 mm, respectively. The mean linear distances between the medial angle and the exit points of each were 22.2±3.0 mm and 14.5±1.9 mm, respectively, and the mean linear distances between the lateral angle and the exit points of the SON and STN were 34.0±2.7 mm and 36.9±2.5 mm, respectively. These nerves rotated ipsilaterally toward the center of the orbit easily. A better understanding of the anatomy of these nerves can contribute to the development and improvement of ipsilateral CN.
Dielectric Anomaly in the Region IV of Rochelle Salt - Ammonium Rochelle Salt Mixed Crystals
Toshio Kikuta,Noriyuki Nakatani,Ryosuke Kawabe,Toshinari Yamazaki 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.IV
Temperature dependence of the dielectric constant along the a axis has been measured at various concentrations in the regions III and IV of mixed crystals of Rochelle salt and ammonium Rochelle salt. In the region IV, the dielectric anomaly along the a axis grows to be remarkable with the concentration of Rochelle salt, while the polar axis is still b. The free energy function which has two types of the transition parameters is constructed to consider the thermodynamic treatment in the region IV. The dielectric anomaly along the a axis in the region IV is successfully expressed by the free energy function.HC
Crystal Structure of Telluric Acid Ammonium Phosphate (TAAP) in the Paraelectric Phase
Toshio Kikuta,Daisuke Hamatake,Noriyuki Nakatani,Toshinari Yamazaki 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.1
Crystal structure of monoclinic telluric acid ammonium phosphate (TAAP) has been studied by an X-ray diffraction method in the paraelectric phase at 333 K and in the ferroelectric phase at room temperature. It is conrmed that the space group in the paraelectric phase is P2/n. Comparison of the results between the two temperatures suggests that the plane which is made by the PO4 tetrahedron linked by hydrogen bonds has an important role for the ferroelectric phase transition. This plane is almost parallel to the direction of spontaneous polarization.
Triangles of the neck: a review with clinical/surgical applications
Shogo Kikuta,Joe Iwanaga,Jingo Kusukawa,R,Shane Tubbs 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.2
The neck is a geometric region that can be studied and operated using anatomical triangles. There are many triangles of the neck, which can be useful landmarks for the surgeon. A better understanding of these triangles make surgery more efficient and avoid intraoperative complications. Herein, we provide a comprehensive review of the triangles of the neck and their clinical and surgical applications.
Shogo Kikuta,Skyler Jenkins,Jingo Kusukawa,Joe Iwanaga,Marios Loukas,R. Shane Tubbs 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.3
The ansa cervicalis is a neural loop in the neck formed by connecting the superior root from the cervical spinal nerves (C1–2) and the inferior root descending from C2–C3. It has various anatomical variations and can be an important acknowledgment in specific operations of the neck region. This is a review the anatomy, variations, pathology and clinical applications of the ansa cervicalis.
Toshio Kikuta,Noriyuki Nakatani,Toshinari Yamazaki 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.51 No.2I
The change in the domain pattern was observed when the influence of an electric field perpendicular to the ferroelectric axis in triglycine sulfate crystals was investigated. With the charged carbon decoration method, the domain pattern turned out quite changed from a lenticular domain pattern perpendicular to the c axis into a rigid striped one parallel to the c axis. The direction of the stripe, on which the strongest influence of the perpendicular electric field has been found, seems to have a peculiar nature.
An anatomical study of the lingual nerve in the lower third molar area
Shogo Kikuta,Joe Iwanaga,Jingo Kusukawa,R,Shane Tubbs 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.2
The lingual nerve (LN) is a branch of the mandibular division of the trigeminal nerve, and its injury is one of the major complications during oral surgery. This study aims to investigate the anatomy of the LN in the lower third molar area. Twenty sides from ten fresh-frozen adult cadaveric Caucasian heads were examined to measure the diameter of the LN. The mean diameter of the LN was 2.20±0.37 mm (range, 1.61–2.95 mm). There were no statistically significant differences in the measurements between sexes, sides, or tooth status (dentulous or edentulous). Understanding the anatomical features of the LN is essential for performing any surgical procedure in the oral region.
A Multiple Inheritance Analysis of the Internally-Headed Relative Clause in Japanese
( Chiharu Uda Kikuta ) 한국언어정보학회 1998 국제 워크샵 Vol.1998 No.-
This paper proposes a mutliple inheritance type-hierarchical analysis of the Japanese "Internally-Headed Relative Clause" (IHRC) in Head-driven Phrase Structure Grammar (HPSG). It has been a long standing issue whether the IHRC shares syntactic properties with the EHRC or it is basically a clausal complement structure. This paper claims that such bipartite debate is misguided. It is undeniable that IHRC is similar to EHRC in one respect, and to clausal complement clause in another. defining it categorically as either one only distorts the reality. It will be proposed, therefore, that IHRC is a subtype of both a relative clause and a clausal complement. The hybrid structure of IHRC is quite a marked type of multiple inheritance, and I claim that this accounts for the restrictive availability of IHRC and its unstability as an independent grammatical construction. as well as for the IHRC`s intermediacy between the EHRC and the clausal complement structure. This discussion is done on Japanese alone; however, the analysis with minor modifications will accommodate the Korean IHRC as well.