Coulomb breakup reactions of 11^{11}Li in the coupled-channel 9^9Li~+~nn~+~nn three-body model

We investigate the three-body Coulomb breakup of a two-neutron halo nucleus $^{11}$Li. We use the coupled-channel $^9$Li + $n$ + $n$ three-body model, which includes the coupling between last neutron states and the various $2p$-$2h$ configurations in $^9$Li due to the tensor and pairing correlations. The three-body scattering states of $^{11}$Li are described by using the combined methods of the complex scaling and the Lippmann-Schwinger equation. The calculated breakup cross section successfully reproduces the experiments. The large mixing of the s-state in the halo ground state of $^{11}$Li is shown to play an important role in explanation of shape and strength of the breakup cross section. In addition, we predict the invariant mass spectra for binary subsystems of $^{11}$Li. It is found that the two kinds of virtual s-states of $^9$Li-$n$ and $n$-$n$ systems in the final three-body states of $^{11}$Li largely contribute to make low-lying peaks in the invariant mass spectra. On the other hand, in the present analysis, it is suggested that the contributions of the p-wave resonances of $^{10}$Li is hardly confirmed in the spectra.Comment: 26 pages, 11 figures, 2 tables, submitted to Phys. Rev.

Di-neutron correlations in 6He through Coulomb breakup reactions

The internal correlations of binary subsystems not only in the ground state but also in excited states of 6He are investigated through the Coulomb breakup reaction. For the excited states, to investigate the internal correlations, the twodimensional energy distributions of the E1 strength are calculated with respect to the relative energy in the binary subsystems, and the importance of the final state interactions are discussed. For the ground state, the E1 strength distributions are calculated by using two types of wave functions with and without strong di-neutron correlations, and the contributions from the di-neutron correlations are investigated

Verification of Rorschach Indicators of Sexual Abuse

We attempted to find Rorschach indicators of sexual abuse. In the present study, we investigated the propriety of 4 indicators that we reported in 2001 and more precise indicators of sexual abuse through statistical analysis of Rorschach records of 108 female psychiatric patients with a history of sexual abuse and 48 female psychiatric patients without it. We defined the sex locations on the Rorschach cards and took notice of the particular responses for them. Eighty-two of the 108 (76%) sexually abused patients and 1 of the 48 (2%) non-abused patients gave the sex response, inanimate movement response (m) or m tendency for the sex locations. Aggression and hostile responses were scored by Müstein’s Rorschach hostility scale; the scores for the abused was 19.99 ± 15.96 and for the non-abused, 12.37 ± 8.57. Number of form-color (FC) response equal to or lower than the total of color-form (CF) response and pure color (C) response (FC ≤ CF + C) was shown in 95 of the 108 (88%) abused and 30 of the 48 (63%) non-abused. Among these 3 items, the differences between the 2 groups were remarkably significant (P < 0.001). It becomes obvious that the 3 indicators as shown below are valid for finding sexual abuse histories for differential diagnosis: i) a host of aggression and hostile content; ii) loss of control in color responses, for example FC ≤ CF + C; and iii) the sex responses, m or m tendency for sex locations

Coulomb Breakup Reactions in Complex-Scaled Solutions of the Lippmann-Schwinger Equation

We propose a new method to describe three-body breakups of nuclei, in which the Lippmann-Schwinger equation is solved combining with the complex scaling method. The complex-scaled solutions of the Lippmann-Schwinger equation (CSLS) enables us to treat boundary conditions of many-body open channels correctly and to describe a many-body breakup amplitude from the ground state. The Coulomb breakup cross section from the 6He ground state into 4He+n+n three-body decaying states as a function of the total excitation energy is calculated by using CSLS, and the result well reproduces the experimental data. Furthermore, the two-dimensional energy distribution of the E1 transition strength is obtained and an importance of the 5He(3/2-) resonance is confirmed. It is shown that CSLS is a promising method to investigate correlations of subsystems in three-body breakup reactions of the weakly-bound nuclei.Comment: 12 pages, 6 figures, submitted to Progress of Theoretical Physics; section 2.4 added, 2 equations added, 1 equation replace

Discordant Immune Marker Expression Between Preoperatively Biopsied and Matched Surgically Resected Specimens in Patients With Oral Squamous Cell Carcinoma

Programmed cell death ligand 1 (PD-L1) expression and tumor-associated immune cell (TAIC) density can be the biomarkers of survival outcome and for predicting the efficacy of immune checkpoint inhibitors in oral squamous cell carcinoma (OSCC), but whether single biopsy accurately reflects the values of these parameters in resected specimens is unclear. To clarify this, we evaluated the concordance of immune marker expression (PD-L1, PD-1, CD3, CD4, CD8, and CD68) between 39 paired biopsied and surgically resected specimens obtained from patients with OSCC at Kobe City Medical Center General Hospital between July 2011 and January 2016. Immune marker expression was assessed using immunohistochemistry. PD-L1 expression was consistent between the biopsied and surgically resected specimens in only 76.9% of cases. TAIC density was significantly lower in biopsied than in surgically resected specimens. There was considerable discordance in immune marker expression between biopsied and surgically resected specimens. We should take into consideration that PD-L1 positivity and TAIC density would be underestimated by single small biopsies compared to the estimations by surgically resected specimens

がん患者を受け持った学生の周手術期看護実習前後における自尊感情の変化に関連する要因の検討 : 看護実践力の変化を中心に

本研究では、周手術期にあるがん息者を受け持った看護学生の実習前後の看護実践力の変化が、自尊感情を変化させる要因となるか否かを検討することを目的とした。関東圏の私立A短期大学看護学科において成人看護学実習Iを履修した3年生98名に、看護実践力尺度と自尊感情尺度を用いて、成人看護学実習I初日と最終日の2回にわたり、調査を実施した。実習前後の自尊感情の変化から低下群、変化なし群、上昇群に分け、看護実践力との関係を検討した。 　その結果、自尊感情3群別における実習前後の看護実践力について有意差がみられず、実習前後の看護実践力の変化が自尊感情を低下させる要因となることは示されなかった。一方、自尊感情が低下した群では、学内演習における看護過程で取り上げた胃癌忠者のみを実習でも受け持つた割合が有意に低くなったことから、実習でよく遭遇する疾患を演習や実習オリエンテーションで取り上げることが、実習前後での自尊感情の向上に資する可能性が示唆された

Magnetic properties of the S=1/2S=1/2 distorted diamond chain at T=0

We explore, at T=0, the magnetic properties of the $S=1/2$ antiferromagnetic distorted diamond chain described by the Hamiltonian {\cal H} = \sum_{j=1}^{N/3}{J_1 ({\bi S}_{3j-1} \cdot {\bi S}_{3j} + {\bi S}_{3j} \cdot {\bi S}_{3j+1}) + J_2 {\bi S}_{3j+1} \cdot {\bi S}_{3j+2} + J_3 ({\bi S}_{3j-2} \cdot {\bi S}_{3j} + {\bi S}_{3j} \cdot {\bi S}_{3j+2})} \allowbreak - H \sum_{l=1}^{N} S_l^z with $J_1, J_2, J_3\ge0$, which well models ${\rm A_3 Cu_3 (PO_4)_4}$ with ${\rm A = Ca, Sr}$, ${\rm Bi_4 Cu_3 V_2 O_{14}}$ and azurite $\rm Cu_3(OH)_2(CO_3)_2$. We employ the physical consideration, the degenerate perturbation theory, the level spectroscopy analysis of the numerical diagonalization data obtained by the Lanczos method and also the density matrix renormalization group (DMRG) method. We investigate the mechanisms of the magnetization plateaux at $M=M_s/3$ and $M=(2/3)M_s$, and also show the precise phase diagrams on the $(J_2/J_1, J_3/J_1)$ plane concerning with these magnetization plateaux, where $M=\sum_{l=1}^{N} S_l^z$ and $M_s$ is the saturation magnetization. We also calculate the magnetization curves and the magnetization phase diagrams by means of the DMRG method.Comment: 21 pages, 29 figure

Association between shift work and the risk of death from biliary tract cancer in Japanese men

Background: There is increasing evidence suggesting that shift work involving night work may increase cancer risk. Methods: We examined the association between working rotating shifts and the risk of death from biliary tract cancer among Japanese men who participated in the Japan Collaborative Cohort Study. Of the 46, 395 men recruited, 22, 224 men aged 40-65 at baseline (1988-1990) who reported working full-time or were self-employed were included in the present analysis. The study subjects were followed through December 31, 2009. Information regarding occupation and lifestyle factors was collected using a self-administered questionnaire. Cox proportional hazard models were used to estimate the hazard ratio (HR) and 95 % confidence interval (CI) for the risk of death from biliary tract cancer in relation to shift work. Results: During a mean 17-year follow-up, we observed 94 biliary tract cancer deaths, including 23 deaths from gallbladder cancer and 71 deaths from extrahepatic bile duct cancer. Overall, shift work was associated with a statistically non-significant increase in the risk of biliary tract cancer, with an HR of 1.50 (95 % CI: 0.81-2.77), among rotating shift workers. When the analysis was limited to extrahepatic bile duct cancer, a significant association appeared, with a multivariable-adjusted HR of 1.93 (95 % CI: 1.00-3.72) for rotating shift workers. Conclusion: Our data indicate that shift work may be associated with increased risk of death from extrahepatic bile duct cancer in this cohort of Japanese men. The association with gallbladder cancer remains unclear because of the small number of deaths