Impurity effects in one dimensional spin nematic liquid

We study impurity effects in the spin nematic phase of the $S=1/2$ $J_1$-$J_2$ frustrated spin chain under an external magnetic field by using the infinite density matrix renormalization group and the bosonization. It is found that local magnetization almost saturates around the impurity and the entanglement entropy nearly vanishes at the corresponding bonds, not only when the magnetic interactions near the impurity are weakened but also when they are strengthened compared to those in the bulk. Then, we examine spin correlations and Friedel oscillations induced by the impurity. The bosonization provides a qualitative understanding of the characteristic behaviors of the magnetization. We also discuss impacts of the impurity on experiments by focusing on NMR spectra.Comment: 13 page

Di-higgs enhancement by neutral scalar as probe of new colored sector

We study a class of models in which the Higgs pair production is enhanced at hadron colliders by an extra neutral scalar. The scalar particle is produced by the gluon fusion via a loop of new colored particles, and decays into di-Higgs through its mixing with the Standard Model Higgs. Such a colored particle can be the top/bottom partner, such as in the dilaton model, or a colored scalar which can be triplet, sextet, octet, etc., called leptoquark, diquark, coloron, etc., respectively. We examine the experimental constraints from the latest Large Hadron Collider (LHC) data, and discuss the future prospects of the LHC and the Future Circular Collider up to 100TeV. We also point out that the 2.4$\sigma$ excess in the $b\bar b\gamma\gamma$ final state reported by the ATLAS experiment can be interpreted as the resonance of the neutral scalar at 300GeV.Comment: 27 pages, 10 figures (v1); references added, 28 pages (v2); minor modifications, published version (v3

Development of Diachronic Terminology from Japanese Statutory Corpora

This paper reports our ongoing research on the development of diachronic legal terminology, which deals with temporal changes in legal terms. We started by compiling statutory corpora for them. Focusing on articles that define legal terms, we defined a set of regular expression rules. Our experimental result showed that we successfully extracted legal terms, their explanations, and their relations. Our terminology consists of 26,661 terms and 35,201 relations, in which the precision of the relations was 88.0\% with 100 samples chosen at random. Graphical output will enrich our understanding of the dynamics of legal terms

ICR News 2022

This Annual Report covers from 1 January to 31 December 202

Basal Cell Carcinoma of the Head and Neck

Basal cell carcinoma (BCC) is a malignant neoplasm derived from nonkeratinizing cells that originate from the basal layer of the epidermis and is the most frequent type of skin cancer in humans, with cumulative exposure to ultraviolet radiation as an important risk factor. BCC occurs most frequently at sun-exposed sites, with the head and neck being common areas. Tumors can be classified as nodular, superficial, morpheaform, infiltrating, metatypic, and fibroepithelioma of Pinkus. Several treatment options such as surgical excision and nonsurgical procedures are available. The choice of treatment should be determined based on the histological subtype of a lesion, cost, its size and location, patient age, medical condition of the patient, treatment availability, and the patient's wishes. The aim of any therapy selected for BCC treatment involving the head and neck is to ensure complete removal, the preservation of function, and a good cosmetic outcome