In this paper we compare EUV Imaging Telescope (EIT) waves with simultaneous phenomena seen in H in order to address the question of what an EIT wave is. We surveyed the events associated with solar flares larger than GOES M-class in 1999-2002. The H data are taken with the Flare-monitoring Telescope (FMT) at the Hida Observatory of Kyoto University. Among 14 simultaneous observations of EIT waves and H, 11 were found to have filament eruptions, three were associated with Moreton waves, and one was found to have only filament oscillations. This shows that we cannot see clear wave fronts in H even if EIT waves exist, but that it is possible to recognize invisible waves by means of filament oscillations. The nature of filament oscillations and Moreton waves associated with EIT waves is examined in detail, and it is found that the filament oscillations were caused by EIT waves.

We present a systematic study of the dc-resistivity, Hall effect, and magnetoresistance in the normal state of quasi two-dimensional (2D) heavy fermion superconductors CeMIn 5 (M: Rh and Co) under pressure. Here the electronic system evolves with pressure from an antiferromagnetic (AF) metal, through a highly unconventional non-Fermi liquid, and finally into a Fermi-liquid state. The novelty of these materials is best highlighted when compared with LaMIn 5 , a system with similar electronic structures, which shows a nearly temperature independent Hall coefficient and a magnetoresisitance which is well described by the classical Kohler's rule. In sharp contrast, in CeMIn 5 , the amplitude of the Hall coefficient increases dramatically with decreasing temperature, reaching at low temperatures a value significantly larger than 1=ne, where n is the carrier number. Furthermore, the magnetoresistance is characterized by T-and H-dependence which clearly violate Kohler's rule. We found that the cotangent of the Hall angle cot  H varies as T 2 , and the magnetoresistance is well scaled by the Hall angle as Á xx = xx / tan 2  H . These non-Fermi liquid properties in the electron transport are remarkably pronounced when the AF fluctuations are enhanced in the vicinity of the quantum critical point. We lay particular emphasis on the striking resemblance of these anomalous magnetotransport with those of the high-T c cuprates. We argue that features commonly observed in quasi 2D heavy fermion and cuprates very likely capture universal features of strongly correlated electron systems in the presence of strong AF fluctuations, holding the promise of bridging our understanding of heavy fermion systems and high-T c cuprates.

Bridging TEVAR is a useful adjunct in treating AEF patients with shock. One-stage surgery consisting of resection of the aneurysm and oesophagus, in situ reconstruction of the descending aorta and omental flap installation provided a better outcome in the AEF surgical strategy compared with conservative treatment.

Although age 80 years or older was the risk factor for hospital mortality in operation for acute type A aortic dissection, the long-term survival of the hospital survivors and the level of activity of daily life were acceptable. Aggressive surgical treatment could be a reasonable option for selected elderly patients.

Although a comparative study was not performed, 1-stage surgery consisting of resection of an aneurysm and esophagus, in situ reconstruction of the descending aorta, and omental flap installation provided a better outcome in the treatment for AEF. Bridging TEVAR to the open surgery is a useful adjunct in patients with AEF with hemorrhagic shock. Later reconstruction of the esophagus can be performed in the survivors.

In quasi-two-dimensional Ce͑Ir, Rh͒In 5 system, it has been suggested that the phase diagram contains two distinct domes with different heavy-fermion superconducting states. Here, we report the systematic pressure dependence of the electron transport properties in the normal state of CeRh 0.2 Ir 0.8 In 5 and CeIrIn 5 , which locates in first and second superconducting domes, respectively. We observed non-Fermi liquid behavior at low temperatures in both compounds, including nonquadratic T dependence of the resistivity, large enhancement of the Hall coefficient, and the violation of the Kohler rule in the magnetoresistance. We show that the cotangent of the Hall angle cot ⌰ H varies as T 2 , and the magnetoresistance is quite scaled well by the Hall angle as ⌬ xx / xx ϰ tan 2 ⌰ H . The observed transport anomalies are common features of CeMIn 5 ͑M = Co, Rh, and Ir͒ and high-T c cuprates, which suggest that the anomalous transport properties observed in CeIrIn 5 are mainly governed by the antiferromagnetic spin fluctuations not by the Ce-valence fluctuations, which have been proposed to be the possible origin for the second superconducting dome.

Early outcomes following graft replacement of Kommerell's diverticulum and in-situ aberrant subclavian artery reconstruction were acceptable. In terms of long-term outcomes, symptomatic improvement and an excellent patency rate among reconstructed aberrant subclavian arteries suggest that in-situ surgical repair is an effective treatment option.

Aggressive direct reperfusion of the carotid artery before the aortic repair may reduce neurological complications in patients with preoperative brain malperfusion secondary to acute aortic dissection.