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Kazuo Sakamoto, Masatsugu Nozoe, Yoshitomo Tsutsui, Nobuhiro Suematsu, Toru Kubota, Masanori Okabe, Yusuke Yamamoto Division of Cardiology, Cardiovascular and Aortic Center, Saiseikai Fukuoka General Hospital, Fukuoka, Japan Abstract: Cardiac magnetic resonance imaging (MRI) is a useful tool for detecting the arrhythmogenic substrate in cardiac sarcoidosis. We herein present a case of bipolar radiofrequency catheter ablation for ventricular tachycardia (VT) complicated with cardiac sarcoidosis, guided by pre-procedural cardiac MRI. Neither echocardiography nor endocardial voltage mapping suggested a septal VT substrate. However, MRI alone detected intramural lesions in the septum. Although application of endocardial energy failed to treat the VT, bipolar ablation targeting the potential substrate identified by MRI successfully eliminated the VT. Even when no abnormalities are depicted on echocardiography and endocardial voltage mapping, intramural scar tissue identified by cardiac MRI could be critical for VT. Keywords: cardiac sarcoidosis, VT, MRI, bipolar ablation

The patients in this manuscript have given written informed consent to publication of their case details. We diagnosed the patient with dermatitis herpetiformis (DH). [Extracted from the article]

We have measured x-ray magnetic circular dichroism spectra at the Co and Pt L2,3-edges in Co80Pt20 perpendicular magnetization films, wherein the uniaxial magnetic anisotropy constant, Ku, significantly increases with decreasing film thickness, δ, and reaches 1.7×107 erg/cm3 for δ=3 nm. The anisotropy of the orbital magnetic moment (AOM) was estimated as a function of δ, and the relationship between AOM and Ku is discussed. When the thickness was reduced, the AOM for Pt 5d was nearly constant, whereas a weak increase was observed for Co 3d. Both AOMs are small in contrast to the large Ku, and any proportionality between AOM and Ku was hardly recognized. This result indicates that a large AOM is not always a necessary and sufficient condition for the appearance of perpendicular magnetization. [ABSTRACT FROM AUTHOR]

By using multireference single excitation configuration interaction calculations and multireference single and double excitation CI calculations, we consider the ¹Σ[sup +, sub u]. ¹Π[sub g], and ¹Π[sub u] excited states of the F[sub 2] molecule which lie between 4.3 and 14.1 eV above the ground state. The basis set is composed of 13s, 10p, 7d, and 2f contracted Gaussian-type functions, and covers molecular orbitals spanned by 4s, 4p, and 3d Rydberg orbitals. Of the ¹Σ[sup +, sub u] ¹Σ[sup +, sub u] + states, G is sometimes disregarded, presumably because it is not directly observed by optical measurements, but is inferred from perturbations in the visible and ultraviolet spectra. We find that G ¹Σ[sup +, sub u] arises from the shallow local minimum in the lowest ¹Σ[sup +, sub u] E potential curve, which also has a stable minimum corresponding to the state designated C¹ are Σ[sup +, sub u].The experimental excitation energies (T[sub 0] values) for G ¹Σ[sup + sub u] 12.81-12.87 eV according to electron energy loss spectroscopy, and our theoretical value is 13.06 eV. Agreement between the experiment and the calculation is quite close. The state has a mixed ionic-Rydberg character with an interesting Rydberg portion. The experimental and calculated TO values for C¹Σ[sup +1, sub u] are, respectively, 11.57 and 11.59 eV, suggesting that the present calculation for the state is reliable. Ambiguity found in experimental assignments of the vibrational levels for C ¹Σ[sup +, sub u] is settled here. The ¹Π [sub g] and ¹Π[sub u] states are also discussed. [ABSTRACT FROM AUTHOR]

A unique form of striations, pulse striations, has been observed in a glow discharge by means of a laser-triggered pulse. Unlike conventional striations in a discharge tube, pulse striations are generated near an anode placed in free space. Pulse striations are stereoscopic in shape, appear static, and have a relatively short lifetime of around 1 ms. The wavelength of striations was found to be a function of ambient pressure only, while the relationship between wavelength and pressure in pulse striations was similar to that between specific volume and pressure in the polytropic process of neutral gases. Goldstein's original equation is a function of pressure only and appears to describe more common striation phenomena than Goldstein's law, which is additionally dependent on the radius of the discharge tube. An upper limit of current density, above which striations do not occur, exists. A lower limit of current density was also found in addition to the optimum current density for initiating striations. Laser-triggered pulse striations may enable the easy control of striation duration. [ABSTRACT FROM AUTHOR]

The article studies the orbital contribution to perpendicular magnetic anisotropy in [Co.sub.80][Pt.sub.20] thin films using orbital magnetic moment (AOM). Findings reveal that AOM is not always necessary for the appearance of perpendicular magnetization.

As an application of the laser guided discharge, an electric discharge image marking process was tried. Marking using a discharge can be accomplished with a far smaller laser output power than that used for laser marking since the marking is accomplished by the electric discharge and only uses the laser to guide the discharge. Index Terms--Arc discharges, gas discharges, laser ablation, laser machining, laser materials-processing applications, vacuum arcs, vacuum breakdown.