Motion Capture Dataset for Practical Use of AI-based Motion Editing and Stylization

In this work, we proposed a new style-diverse dataset for the domain of motion style transfer. The motion dataset uses an industrial-standard human bone structure and thus is industry-ready to be plugged into 3D characters for many projects. We claim the challenges in motion style transfer and encourage future work in this domain by releasing the proposed motion dataset both to the public and the market. We conduct a comprehensive study on motion style transfer in the experiment using the state-of-the-art method, and the results show the proposed dataset's validity for the motion style transfer task

環境音と意味知識の発達との関係：5歳児がインタラクションを通して学ぶもの

It is widely believed among researchers and the general public that a close relationship exists between listening to sounds and language acquisition. However, few studies have presented evidence of this relationship, and none have focused on the effects of collaboration with and among children, which might improve their language-learning abilities. This study tried to determine the extent to which nursery school children could expand their semantic knowledge in their first language by collaborating in a small group after listening to sounds. Twenty-four nursery school children participated in this study. They were divided into eight groups and were asked to listen carefully to two sets of previously prepared sounds, each consisting of four distinct types of sounds. Both sets were developed to tell one story. After listening to all the sound sets, the children were asked to discuss and recall the order and content of each set. They were allowed to speak freely in a peer group and occasionally received positive feedback from the researcher. The results show that all the groups actively discussed and then clearly recalled the order and content of the story by working together. This finding implies that preschool children will likely also expand their semantic knowledge in a second language if input is properly delivered.音と言語獲得との関係は深いと信じられているが、実際には、そのエビデンスを示すものはほとんどない。本研究では、5歳児らが、環境音に耳をすませ、注意を向け、小グループでの話し合いの中で、言語力を伸ばしていくことを確認した。5歳児らは、ピア（仲間）とのインタラクションの中で、聴いた音を再確認し、聴いた音に対して発話する力を高めていくことができた。この研究は、母語のみならず、第二言語における習得にも応用できるかもしれない

Non-local spin correlation as a signature of Ising anyons trapped in vacancies of the Kitaev spin liquid

In the Kitaev chiral spin liquid, Ising anyons are realized as Majorana zero modes bound in $Z_2$ fluxes, which, however, are thermal excitations with finite decay rates. On the other hand, a lattice vacancy traps a $Z_2$ flux even in the ground state, resulting in the stable realization of a Majorana zero mode in the $Z_2$ flux. We demonstrate that spin-spin correlation functions between two vacancy sites exhibit long-range correlation arising from the fractionalized character of Majorana zero modes, in spite of the strong decay of bulk spin correlations. Remarkably, this non-local spin correlation does not decrease as the distance between two vacancy sites increases, signaling teleportation of Majorana zero modes. Furthermore, we clarify that the non-local correlation can be detected electrically via the measurement of non-local conductance between two vacancy sites, which is also utilized for the readout of Majorana qubits. These findings pave the way to the measurement-based quantum computation with Ising anyons trapped in vacancies of the Kitaev spin liquid.Comment: 6 pages + 4 figures, and a Supplemental Materia

Study on Structural Changes in Tibial Cancellous Bone with Mechanical Loading After Short-term Immobilization in Rats

Summary　This study aimed to investigate effects of exercise and immobilization just before the exercise on bone remodeling processes.　In experiment 1, rats were used as materials, and were divided into three groups: an exercise after immobilization group that performed 4-week-exercise after 4-day-immobilization （IM-EX）， an exercise group that accomplished 4-week-exercise （EX）， and a control that was fed normally for four weeks （CO）. In experiment 2, rats were also divided into three groups: an exercise after immobilization group that performed 1-week-exercise after 2-day-immobilization （IM-EX）， an exercise group that accomplished 1-week-exercise （EX）， and a control that was fed normally for one week（ CO）. Rats in each group were euthanized at the end of experimental period, tibiae were excised from them and those specimens were observed histologically and morphometrically.　Density and thickness of the bone trabeculae increased at primary cancellous bone from immediately after starting of experiments in IM-EX of the experiment 1 and 2. As for secondary cancellous bone, IM-EX of experiment 1 showed remarkable decrease of bone mass once after four days immobilization, and it was necessary for four weeks to reached to the same level as EX by exercise. On the other hand, in IM-EX of experiment 2, the bone mass hardly changed by two-day-immobilization but decreased temporarily after 2 and 4 days of exercise period, and then, it already recovered up to level than EX after 7 days. Many osteoblasts showed positive reaction to immunostaining of RANKL, and many TRAP positive cells were also recognized, in IM-EX of experiment 2. And, bone matrixes indicated positive reactions to immunostaining of TGF-β， in each groups.　Through the results mentioned above, it was suggested that active bone formation could be brought by the exercise following the short-term immobilization, because factors like TGF-β that promoted differentiation and activation of the osteoblasts were released from the bone matrix by acute bone resorption.Abstract　This study aimed to investigate effects of exercise and immobilization just before exercise on bone remodeling processes. Rats were used as materials, structures of their tibiae were observed through experiment 1 and 2, and following data were obtained.　It was nessesory for four weeks that bone mass of the 4-week-exercise after 4-day-immobillization group recovered to the level that of the 4-week-exercise group. The bone mass of the 1-week-exercise after 2- dayimmobilization group decreased at once, but reached higher level than 1-week-exercise group after one week of the experiment. Many RANKL and TRAP positive cells were observed after 2 days of the experiment in the1-week-exercise after 2-day-immobillization group, compared to the control, and the bone matrixes indicated positive reactions to TGF-βimmunostaining.　Then, it was suggested that the bone resorption activated, differentiation and activation factors like TGF-β were released from the bone matrixes into bone marrow, and then, this could brought active bone formation, by the exercise following the immobilization

Grindability of Dental Cast Ti-Zr Alloys

The purpose of this study was to improve the grindability of titanium by alloying with zirconium. The grindability of dental cast Ti-Zr alloy