Results 101 to 110 of about 1,905,484 (359)

Vitamin D Binding Protein, a Ligand of Integrin beta 1, Motivates Both Tumor Cells and Schwann Cells to Promote Perineural Invasion in Pancreatic Ductal Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
Group‐specific component protein (GC) promotes perineural invasion (PNI) in pancreatic ductal adenocarcinoma (PDAC) by activating Schwann cell dedifferentiation and by enhancing tumor–Schwann cell chemoattraction, independently of vitamin D transport. Integrin β1 (ITGB1) functions as a GC receptor in both cancer cells and Schwann cells.
Shan Zhang   +15 more
wiley   +1 more source

A Soft‐Tip Hydraulically Steerable Catheter for Enhanced Flexibility and Safety in Vascular Interventions

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a hydraulically steerable catheter with a soft tip in vascular procedures. The steering soft tip achieves a minimal diameter of 2.6 mm and supports a 180° bend. Real‐time shape and position tracking, facilitated by segmentation and endpoint detection techniques, improves navigation.
Jingyi Kang   +9 more
wiley   +1 more source

Insect‐Inspired Resilient Machines

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a decentralized resilient control for legged robots, enabling self‐organized locomotion and rapid adaptation to extreme leg loss within seconds. It encodes the self‐embodied resilience strategies observed in stick insects and relies on neural dynamics with synaptic plasticity, minimal sensory feedback, and dynamic robot–environment ...
Thirawat Chuthong   +3 more
wiley   +1 more source

Sickle Cell Anemia (Homozygous S) with Aseptic Necrosis of Femoral Head [PDF]

open access: bronze, 1956
Kouichi R. Tanaka   +2 more
openalex   +1 more source

The role of “cell therapy” in osteonecrosis of the femoral head

open access: yesActa Orthopaedica, 2015
Background and purpose — The value of core decrompression for treatment of osteonecrosis of the femoral head (ONFH) is unclear. We investigated by a literature review whether implantation of autologous bone marrow aspirate, containing high concentrations
C. Papakostidis   +3 more
semanticscholar   +1 more source

Birmingham Mid-Head Resection Periprosthetic Fracture.

open access: yes, 2014
Total hip arthroplasty in the young leads to difficult choices in implant selection. Until recently bone conserving options were not available for younger patients with deficient femoral head bone stock.
Aqil, A   +4 more
core   +1 more source

Sliding Guide System Concept for 3D Motion of the Hip Joint in Walking Assist Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
The human hip joint has three degrees of freedom. However, most current walking assist robots only support flexion–extension. As the human femoral head is almost a perfect sphere, the sliding guide system employs two guide plates that contour spherical surfaces.
Naoto Saito   +2 more
wiley   +1 more source

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