Results 101 to 110 of about 170,018 (311)

Sentinel lymph node in early stage ovarian cancer; a literature review [PDF]

open access: yes, 2018
Although sentinel lymph node mapping has been widely implemented in gynecological malignancies in order to minimize the number of unnecessary lymph node dissections and to diminish postoperative morbidity rate, little is known about ovarian cancer ...
Bacalbasa, Nicolae   +4 more
core   +3 more sources

An Implanted Tooth That Can Feel

open access: yesAdvanced Science, EarlyView.
To endow the implanted tooth with masticatory perception, herein we demonstrate that a 3D‐printed piezoelectric‐core/robust‐sheath implanted tooth can rebuild the sensing feedback, serving as “mechanoreceptors” in converting the mechanical chewing force to electrical signals, and up to brain through surrounding alveolar nerve system.
Yaru Cao   +13 more
wiley   +1 more source

Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics

open access: yesAdvanced Science, EarlyView.
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai   +15 more
wiley   +1 more source

Frailty: An overlooked red flag in sports surgery

open access: yesJournal of Experimental Orthopaedics
Frailty can be defined as a decline in physiological and biological reserves that does not correlate directly with chronological age. While the general understanding of what geriatricians and orthopaedic surgeons should know about frailty has been ...
Yavuz Şahbat   +2 more
doaj   +1 more source

Initial investigation into patellofemoral morphology in hemophilic arthritis patients

open access: yesFrontiers in Surgery
BackgroundHemophilic arthritis (HA) is associated with significant changes in the morphology of mature knee joints due to abnormal growth plate development.
Haohao Wang   +6 more
doaj   +1 more source

Maths in Medicine: How to Survive a Science Fair

open access: yes, 2016
When talking to secondary school students, first impressions are crucial. Accidentally say something that sounds boring and you'll lose them in seconds. A physical demonstration can be an eye-catching way to begin an activity or spark off a conversation ...
Pearce, Philip, Shearer, Tom
core  

Surface reconstruction, premelting, and collapse of open-cell nanoporous Cu via thermal annealing

open access: yes, 2018
We systematic investigate the collapse of a set of open-cell nanoporous Cu (np-Cu) with the same porosity and shapes, but different specific surface area, during thermal annealing, via performing large-scale molecular dynamics simulations.
Deng, H. Q.   +6 more
core   +1 more source

Inherently Disordered Auxetic Metamaterials

open access: yesAdvanced Science, EarlyView.
Inherently disordered auxetic metamaterials based on random chiral Delaunay triangulations are designed and investigated using numerical simulations and experimental tests. These disordered frameworks exhibit orthotropic behavior and a large negative Poisson's ratio (ca.
Matteo Montanari   +3 more
wiley   +1 more source

Ligament reconstruction for the chronic instability of the traumatic thumb carpometacarpal joint

open access: yesActa Orthopaedica et Traumatologica Turcica, 2021
Objectives: We evaluated the results of ligament reconstruction performed for chronic instability of the traumatic thumb carpometacarpal joint.\nMethods: Seven male patients with traumatic instability of the thumb carpometacarpal joint underwent ligament
Ibrahim Akmaz   +3 more
doaj  

Senomorphic Small Extracellular Vesicles Delivered by a Tissue‐Adhesive α‐Lipoic‐Acid Hydrogel Enable Immuno‐Rejuvenation for Bone‐Tendon Interface Regeneration

open access: yesAdvanced Science, EarlyView.
This work identifies M1 macrophage‐mediated inflammation as a key driver of BMSC senescence and bone microstructural deterioration at the enthesis. A tissue‐adhesive hydrogel delivering senomorphic small extracellular vesicles suppresses this inflammatory‐senescent cascade and enhances BMSC resilience by inhibiting the cGAS‐STING‐NF‐κB pathway.
Lingzhi Kong   +8 more
wiley   +1 more source

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