Evaluation of an assistive exosuit for alleviating neck and shoulder muscle fatigue during prolonged flexed neck posture.

Introduction: Neck pain affects 203 million people globally and is prevalent in various settings due to factors like poor posture, lack of exercise, and occupational hazards. Therefore, addressing ergonomic issues with solutions like a wearable robotic device is crucial. This research presents a novel assistive exosuit, characterized by its slim and lightweight structure and intuitive control without the use of hands, designed to mitigate muscle fatigue in the neck and shoulders during prolonged flexed neck posture.

TRPV1 regulates inflammatory process in the tongue of surgically induced xerostomia mouse.

Background: The aim of study is to investigate the role of transient receptor potential cation channel subfamily V member 1 (TRPV1) on xerostomia-induced inflammatory response in vivo.

Methods: Parotid, submandibular, and lingual gland were removed for xerostomia induction. The expression of inflammatory cytokines, TRPV1, NFkB, and MAPK in xerostomia was evaluated and compared in both TRPV1 wild and knockout mice.

Eigen damping constant of spin waves in ferromagnetic nanostructure.

Though varying in nature, all waves share traits in a way that they all follow the superposition principle while also experiencing attenuation as they propagate in space. And thus it is more than common that a comprehensive investigation of one type of wave leads to a discovery that can be extended to all kinds of waves in other fields of research. In the field of magnetism, the wave of interest corresponds to the spin wave (SW).

Unidirectional Magnon-Driven Domain Wall Motion Due to the Interfacial Dzyaloshinskii-Moriya Interaction.

We demonstrate a unidirectional motion of a quasiparticle without explicit symmetry breaking along the space-time coordinate of the particle motion. This counterintuitive behavior originates from a combined action of two intrinsic asymmetries in the other two directions. We realize this idea with the magnon-driven motion of a magnetic domain wall in thin films with interfacial asymmetry.

Relation between switching time distribution and damping constant in magnetic nanostructure.

It is widely known that the switching time is determined by the thermal stability parameters and external perturbations such as magnetic field and/or spin polarized current in magnetic nano-structures. Since the thermal stability parameter and switching time are crucial values in the design of spin-transfer torque magnetic random access memory, the measurement of the switching time is important in the study of the switching behavior of ferromagnetic nano-structures. In this study, we focus on the distribution of the switching time.

Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect.

We present a combined theoretical and experimental study, investigating the origin of the enhanced nonadiabaticity of magnetic vortex cores. Scanning transmission x-ray microscopy is used to image the vortex core gyration dynamically to measure the nonadiabaticity with high precision, including a high confidence upper bound. We show theoretically, that the large nonadiabaticity parameter observed experimentally can be explained by the presence of local spin currents arising from a texture induced emergent Hall effect.

Revisiting the Topographic Anatomy of the Marginal Mandibular Branch of Facial Nerve Relating to the Surgical Approach.

Background: The marginal mandibular branch (Mbr) of the facial nerve is vulnerable to damage during rhytidoplasty, surgical reduction of the mandibular angle, parotidectomy, and excision of the submandibular gland.

Objectives: The authors sought to map the Mbr and determine the relationship between the number of Mbr offshoots and the course of the Mbr.

Methods: The Mbr was examined in 29 hemifaces from 12 embalmed and 4 fresh cadavers (10 males, 6 females; mean age, 73.

Prediction of giant spin motive force due to Rashba spin-orbit coupling.

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through a spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer torque. While this feedback effect is usually weak and thus ignored, we predict that in Rashba spin-orbit coupling systems with a large Rashba parameter α(R), the coupling generates the spin-dependent electric field [±(α(R)m(e)/eħ)(z[over ^]×∂m/∂t)], which can be large enough to modify the magnetization dynamics significantly.

Clinical analysis of surgical approaches for orbital floor fractures.

Objective: To identify the optimal surgical method for managing blowout fractures of the inferior orbital wall by analyzing the location and type of fracture based on computed tomographic findings and medical records.

Methods: Medical records of 102 patients with pure inferior blowout fractures who were treated between June 1996 and December 2005 were reviewed regarding fracture type and location and surgical approach.

Results: Ocular symptoms persisted in 14 of the 102 cases after surgery, and revision procedures were performed in 11 of those cases.

The differences of blowout fracture of the inferior orbital wall between children and adults.

Objectives: To review the clinical features and recovery period of patients with blowout fractures of the inferior orbital wall treated surgically and to examine the differences between children and adults.

Design: A retrospective study.

Setting: Department of Otorhinolaryngology, Maryknoll General Hospital, Busan, Korea.