Purpose: Due to failures that occur during intubation, some authors advocate that intubation should always be done with a video laryngoscope. What makes the implementation of this recommendation difficult, especially ...
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As global population rises,accompanied by escalating environmental pollution and climate change,numerous countries find themselves grappling with an acute scarcity of natural freshwater resources^([1]).Seawater desali...
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As global population rises,accompanied by escalating environmental pollution and climate change,numerous countries find themselves grappling with an acute scarcity of natural freshwater resources^([1]).Seawater desalination presents a compelling solution to this looming crisis,especially considering the oceans are Earth’s largest water reservoir^([2]).
The compact tension (CT) and tensile specimens of the AISI 4140 steel in cold rolling condition (untreated steel) were austempered by immersing it into the salt bath at 362℃ for 60 minutes. The tensile strength prope...
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A novel approach is presented by integrating images-driven deep learning(DL)with high entropy oxides(HEOs)analysis.A fully convolutional neural network(FCN)is used to interpret experimental scanning transmission elect...
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A novel approach is presented by integrating images-driven deep learning(DL)with high entropy oxides(HEOs)analysis.A fully convolutional neural network(FCN)is used to interpret experimental scanning transmission electron microscopy(STEM)images ofHEO of various *** FCN model is designed to predict column heights(CHs)and elemental distributions from single,experimentally acquired STEM images of complex(Mn,Fe,Ni,Cu,Zn)_(3)O_(4) HEO nanoparticles(NPs)at atomic *** model’s ability to predict elemental distributions was tested across various crystallographic *** was found that the model could effectively adapt to different atomic configurations and operational *** of the significant outcomes was the identification of substantial elemental inhomogeneities in all experimental NPs,which highlighted the random and complex nature of element distribution within *** developed FCNDL method can be applied to assist experimental HEO and beyond NP analysis in various operating conditions.
Exoskeletons can improve human mobility, but discomfort remains a significant barrier to their widespread adoption. This paper presents a comfort-centered mechatronics design of portable hip exoskeletons, comprising o...
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Individual cells have directionality. Cell orientation leads to tissue orientation. The orientation of cells and tissues is related to their functions. Cell orientation depends on neighboring cells and the surrounding...
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Cells differ by type not only in shape but also in mechanical, electrical, and magnetic properties. Cells can be sorted using these properties. Based on each principle, devices for cell sorting have been designed. Thi...
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Cell shape changes depending on the surrounding environment: mechanical fields (gravitational and fluid forces), electric fields, magnetic fields, electrochemical interactions at interfaces, etc. Deformation responses...
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Cell shape and deformability are related to cell function. For the purpose of cell sorting, a channel with diagonal grooves on the bottom was designed. Cells suspension was poured into a channel created by micromachin...
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Aged individuals and astronauts experience bone loss despite rigorous physical *** mechanoresponse is in-part regulated by mesenchymal stem cells(MSCs)that respond to mechanical *** delivery of low intensity vibration...
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Aged individuals and astronauts experience bone loss despite rigorous physical *** mechanoresponse is in-part regulated by mesenchymal stem cells(MSCs)that respond to mechanical *** delivery of low intensity vibration(LIV)recovers MSC proliferation in senescence and simulated microgravity models,indicating that age-related reductions in mechanical signal delivery within bone marrow may contribute to declining bone *** answer this question,we developed a 3D bone marrow analog that controls trabecular geometry,marrow mechanics and external *** finite element(FE)models were developed to quantify strain environment within hydrogels during *** marrow analogs with gyroid-based trabeculae of scaffold volume fractions(SV/TV)corresponding to adult(25%)and aged(13%)mice were printed using polylactic acid(PLA).MSCs encapsulated in migration-permissive hydrogels within printed trabeculae showed robust cell populations on both PLA surface and hydrogel within a *** 14 days of LIV treatment(1 g,100 Hz,1 h/day),cell proliferation,type-I collagen(Collagen-I)and filamentous actin(F-actin)were quantified for the cells in the hydrogel *** LIV increased all measured outcomes,FE models predicted higher von Mises strains for the 13%SV/TV groups(0.2%)when compared to the 25%SV/TV group(0.1%).While LIV increased collagen-I volume 34%more in 13%SV/TV groups when compared to 25%SV/TV groups,collagen-I and F-actin measures remained lower in the 13%SV/TV groups when compared to 25%SV/TV counterparts,indicating that both LIV-induced strains and scaffold volume fraction(*** scaffold surface)affect cell behavior in the hydrogel ***,bone marrow analogs offer a robust and repeatable platform to study bone mechanobiology.
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