Tunable temperature induced magnetization jump in a GdVO3 single crystal

We report a novel feature of the temperature induced magnetization jump observed along the a-axis of the GdVO3 single crystal at temperature TM = 0.8 K. Below TM, the compound shows no coercivity and remanent magnetization indicating a homogenous antiferromagnetic structure. However, we will demonstrate that the magnetic state below TM is indeed history dependent and it shows up in different jumps in the magnetization only when warming the sample through TM. Such a magnetic memory effect is highly unusual and suggesting different domain arrangements in the supposedly homogenous antiferromagnetic phase of the compound.Comment: 17 pages, 8 Figure

Clonal hematopoiesis with JAK2V617F promotes pulmonary hypertension with ALK1 upregulation in lung neutrophils

博士（医学）福島県立医科大

原爆の記憶と観音像 ―広島・長崎の公園の事例から―

本稿は、広島と長崎の公園に建立された観音像の事例から、原爆の記憶について論じたものである。観音像は「原爆死者」や「原爆災禍」の記憶を伝える造形物であり、二面的な記憶を想起させる。一方は原爆投下という「社会的な出来事」と原爆による「集団的で匿名の死者」の記憶であり、もう一方は近親者など「顔の分かる死者」の記憶である。本稿では、原爆災禍と集団的な原爆死者の記憶を想起させる役割を「モニュメント」、個人的な死者の記憶を想起させる役割を「墓標」と定義し、爆心地の公園に建立された観音像の分析を行う。墓地とも関わりの深い仏像は、家族や友人など顔を思い出すことのできる死者を記憶し、慰霊するために立てられることが多く、「墓標」としての役割が強いが、仏像の中でも観音像は、近代的な思想の中で神聖化された「母性」の象徴とされることでモニュメンタルな意味を持つことがある。近代的な「母性」の象徴としての観音は、「軍国主義」に対して「新しい国家」のアレゴリーとして捉えられ、「平和」の象徴となった。つまり観音像には、「墓標」と「モニュメント」双方の意味が内在されているのである。原爆によって一瞬にして焼け野原となった広島と長崎の爆心地付近は公園として整備され、毎年8月には大規模な平和記念式典が行われている。行政によって作られた公園は、原爆災禍の記憶を伝える巨大な「モニュメント」ともいえる。しかし、公園となっている場所は、多くの人々の命が失われた場所であり、式典が行われる日は彼らの命日である。式典当日、公園内の観音像の参拝者から聞き取り調査をおこなった結果、観音像によって原爆で亡くなった親族の記憶や、かつての暮らしの記憶が思い出されていることが明らかになった。公園という公共空間の観音像も、その場所の記憶や遺骨との関係性によって、個人的な死者の記憶を想起させる「墓標」の意味を含んでいる。しかし、碑文によって説明を行なう「原爆碑」とは異なり、観音像のもつ意味は変化しやすいため、対面的な死者の記憶をもつ人間がいなくなった時、その意味が変化すると考えられる。This paper discusses how the statues of Kannon (Avalokitesvara) in the peace parks that were established in the hypocenters in Hiroshima and Nagasaki have helped to pass on the memory of the “atom bomb dead” and the “atom bomb disaster.” The statues of Kannon that have been erected there serve as one form of monument. I consider that there are two directions in the “memory” thus represented. One is the “social event” of the atomic bombing and memory directed toward the “collective anonymous dead,” and the other is memory directed toward the “dead with names.” In this analysis, the statue of Kannon, representing memory in the social and anonymous direction, is classified as a monument, and memory in the individual direction is classified as a grave marker.
As an object of Buddhist belief, the statue of Buddha is often established for the worship and remembrance of the dead whose faces their friends and families can still remember and for whom the meaning of grave marker is stronger. However, among all the images of Buddha, the statue of Kannon has also come to be a monument, as a symbol in latter-day thought of “motherhood” as well as a monument conveying the tragic memory of the atom bomb as an allegory of “peace” and “post-war Japan.”
The peace parks, developed after the war in the hypocenters of Hiroshima and Nagasaki that instantly became burnt-out areas due to the atom bombs, are where today large-scale peace memorial ceremonies are held every August. I have interviewed people who have come to pray during the August ceremonies. As a result, I have learned about their family members who died on the sites of the peace parks. Because the current peace parks are the places where their relatives lost their lives, the days of the peace memorial ceremonies have also become for the families the days for family commemoration of the anniversary of their deaths. The peace parks established by the nation have also become huge “monuments” to tell the memory of the collective dead to the countless number of people who visit there. However, different from a monument written in characters, the statues of Kannon in the parks have also become grave markers to evoke the memory of the individual dead. This meaning of the statues of Kannon may change, and may eventually come to express folk beliefs in Buddha, or another allegory of “peace” as a part of the larger monument complex, when living persons no longer have a memory of the individuals who perished there

Intrinsic pinning property of FeSe0.5Te0.5

The intrinsic pinning properties of FeSe0.5Te0.5, which is the superconductor with Tc of about 14 K, were studied by the analysis of magnetization curves by the extended critical state model. In the magnetization measurements by SQUID magnetometer, the external magnetic fields were applied parallel and perpendicular to c-axis of the sample. The critical current density Jc's under the perpendicular field of 1 T were estimated by using the Kimishima model as about 1.6 x 10^4, 8.8 x 10^3, 4.1 x 10^3, and 1.5 x 10^3 A/cm2 at 5, 7, 9, and 11 K, respectively, and the temperature dependence of Jc could be fitted with the exponential law of Jc(0)xexp(-{\alpha}T /Tc) up to 9 K and power law of Jc(0)x(1-T / Tc)n near Tc.Comment: 19 pages, 7 figure

幻の夜郎国(其の二) : 悲劇の英雄像

The article is a sequel to the previous article "An Illusory Country Yelang : On the Myth of Zhuwang." Since the Writing of the orevious article, further research has been made in China. Based on the reports of the latest study conducted in China, this article introduces various legends concerning Zhuwang trans-mitted in defferent tribes and Zhuwang\u27s shrines located in various parts of the country. Although a few comments have beenadded, the purpose of this article is to provide correct data for other researchers. The analysis will be reported in future pubications. Received Nov. 30,199

A Case of Traumatic Cyclodialysis Followed by Ultrasound Biomicroscopy

We report a case of persistent traumatic cyclodialysis treated bygoniophotocoagulation and observed by ultrasound biomicroscopy (UBM) throughout the course.A 16 year-old male was struck in his right eye by a rocket firework. After the injury,hypotony continued for 4 months and he was referred to Hiroshima University Hospital. Atthat time, the best visual acuity in his right eye was 0.2 and the intraocular pressure was6 mmHg. Three hundred and sixty degrees of cyclodialysis, partial peripheral anteriorsynechia, hypotony maculopathy and subretinal proliferative tissue were observed.Cyclodialysis was obvious by UBM. From 4 months after the injury goniophotocoagulation wasperformed six times in 2 months. Intraocular pressure recovered 6 months after the injuryand reattachment of cyclodialysis and disappearance of the suprachoroidal space wereconfirmed by UBM. UBM was useful in observing cyclodialysis throughout the course