Results 31 to 40 of about 192,160 (247)
Natural Variation and Neuromechanical Systems [PDF]
, 2009 Natural variation plays an important but subtle and often ignored role in neuromechanical systems. This is especially important when designing for living or hybrid systems \ud which involve a biological or self-assembling component.
Alicea, Bradly
core +1 more source
FEBS Open Bio, EarlyView.The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer +7 more
wiley +1 more source
Stiffness and position control of a prosthetic wrist by means of an EMG interface [PDF]
, 2010 In this paper, we present a novel approach for decoding electromyographic signals from an amputee and for interfacing them with a prosthetic wrist. The model for the interface makes use of electromyographic signals from electrodes placed in agonistic and
Carloni, Raffaella +2 more
core +2 more sources
FEBS Open Bio, EarlyView.Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero +5 more
wiley +1 more source
Bioinspired Nanomaterials: Self Stiffening Artificial Muscles [PDF]
, 2014 Cytoskeletal organization and elasticity are greatly influenced by molecular stiffness and sterics as well as externally imposed and internally generated stresses or so it might be hypothesized.
Patra, Prabir
core
Freeform Fabrication of Ionomeric Polymer-Metal Composite Actuators [PDF]
, 2005 Ionomeric polymer-metal composite (IPMC) actuators are a type of soft electromechanically active material which offers large displacement, rapid motion with only ~1V stimulus.
Lipson, Hod, Malone, Evan
core +3 more sources
Materials Today, 2007 The various types of natural muscle are incredible material systems that enable the production of large deformations by repetitive molecular motions. Polymer artificial muscle technologies are being developed that produce similar strains and higher stresses using electrostatic forces, electrostriction, ion insertion, and molecular conformational ...
Mirfakhrai, Tissaphern +2 more
openaire +1 more source
Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix
Advanced Functional Materials, EarlyView.Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt +2 more
wiley +1 more source
, 2006 Ever since the word ‘ROBOT’ first appeared in a science\ud fiction in 1921, scientists and engineers have been trying\ud different ways to create it. Present technologies in\ud mechanical and electrical engineering makes it possible\ud to have robots in ...
Wang, Mr. L.
core
Negative Linear Compressibility
, 2015 While all materials reduce their intrinsic volume under hydrostatic (uniform) compression, a select few actually \emph{expand} along one or more directions during this process of densification.
Cairns, Andrew B., Goodwin, Andrew L.
core +1 more source