High-speed photoelastic tomography for axisymmetric stress fields in a soft material: temporal evolution of all stress components

This study presents a novel approach for reconstructing all stress components of the dynamic axisymmetric fields of a soft material using photoelastic tomography (PT) and a high-speed polarization camera. This study focuses on static and dynamic Hertzian contact as an example of transient stress field reconstructions. For the static Hertzian contact (a solid sphere pressed against a gel block), all stress components in the urethane gel, which has an elastic modulus of 47.4 kPa, were reconstructed by PT using the measured photoelastic parameters. The results were compared with theoretical solutions and showed good agreement. For the dynamic Hertzian contact (a sphere impacting gel), a high-speed polarization camera was used to reconstruct the transient stress field within the gel. PT was used to quantitatively measure the shear and axial stress waves and showed different propagation speeds on the substrate. The technique allowed the simultaneous measurement of stress fields ranging from $O(10^{-1})$ to $O(10^1)$ kPa during large deformations, demonstrating its accuracy in capturing rapidly changing stress tensor components in dynamic scenarios. The scaling laws of the calculated impact force agreed with theoretical predictions, validating the accuracy of PT for measuring dynamic axisymmetric stress fields in soft materials.Comment: 16 pages, 15 figure

Validity and reliability of the Family Empowerment Scale for caregivers of adults with mental health issues

This is the peer reviewed version of the following article: Kageyama, Kageyama, M., Nakamura, Y., Kobayashi, S. and Yokoyama, K. (2016), Validity and reliability of the Family Empowerment Scale for caregivers of adults with mental health issues. J. Psychiatr. Ment. Health Nurs., 23: 521-531. doi:10.1111/jpm.12333, which has been published in final form at https://doi.org/10.1111/jpm.12333. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions

Validity and reliability of the Japanese version of the Therapeutic Factors Inventory–19 : A study of family peer education self-help groups

This is the peer reviewed version of the following article: Kageyama, M., Nakamura, Y., Kobayashi, S. and Yokoyama, K. (2016), Therapeutic Factors Inventory–19. Japan Journal of Nursing Science, 13: 135-146. doi:10.1111/jjns.12098, which has been published in final form at https://doi.org/10.1111/jjns.12098. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions

Changes in Families’ Caregiving Experiences through Involvement as Participants then Facilitators in a Family Peer-Education Program for Mental Disorders in Japan

This is the peer reviewed version of the following article: Kageyama, M., Yokoyama, K., Nakamura, Y. and Kobayashi, S. (2017), Changes in Families’ Caregiving Experiences through Involvement as Participants then Facilitators in a Family Peer‐Education Program for Mental Disorders in Japan. Fam. Proc., 56: 408-422. doi:10.1111/famp.12194, which has been published in final form at https://doi.org/10.1111/famp.12194. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions

Violence Towards Family Caregivers by Their Relative with Schizophrenia in Japan

This is a post-peer-review, pre-copyedit version of an article published in Psychiatric Quarterly. The final authenticated version is available online at: https://doi.org/10.1007/s11126-017-9537-4

Rate of Family Violence Among Patients With Schizophrenia in Japan

Kageyama, M., Yokoyama, K., Nagata, S., Kita, S., Nakamura, Y., Kobayashi, S., & Solomon, P. (2015). Rate of Family Violence Among Patients With Schizophrenia in Japan. Asia Pacific Journal of Public Health, 27(6), pp. 652–660. © 2015 APJPH. DOI: 10.1177/101053951559506

Isolated congenital megacystis without intestinal obstruction: A mild variant of chronic intestinal pseudoobstruction syndrome?

Megacystis is frequently involved with chronic intestinal pseudoobstruction syndrome; however, isolated megacystis without intestinal obstruction is extremely rare. We present the case of a female patient with isolated congenital megacystis without severe intestinal obstruction. In this case, barium enema did not reveal any significant findings; however, histologic evaluation of her rectum showed hypoganglionosis of the submucous and myenteric plexuses. These findings indicate that this case may be a mild variant of chronic intestinal pseudoobstruction syndrome. The presence of megacystis should alert the physician to the possibility of chronic intestinal pseudoobstruction syndrome. © 2011 Elsevier Inc. All rights reserved