Results 121 to 130 of about 1,519,388 (324)

A permutation method for network assembly.

open access: yesPLoS ONE, 2020
We present a method for assembling directed networks given a prescribed bi-degree (in- and out-degree) sequence. This method utilises permutations of initial adjacency matrix assemblies that conform to the prescribed in-degree sequence, yet violate the ...
Shawn A Means   +2 more
doaj   +1 more source

Fiedler Vectors and Elongation of Graphs: A Threshold Phenomenon on a Particular Class of Trees

open access: yes, 2012
Let $G$ be a graph. Its laplacian matrix $L(G)$ is positive and we consider eigenvectors of its first non-null eigenvalue that are called Fiedler vector.
Lefèvre, Julien
core   +1 more source

Shape‐Morphing Nanoengineered Hydrogel Ribbons as Hemostats

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a self‐assembling, shape‐morphing nanoengineered hydrogel ribbon system that rapidly forms porous aggregates in situ for efficient hemostasis in trauma and surgical applications. Abstract Rapid and effective hemorrhage control remains a major challenge in trauma and surgical care, particularly for complex or noncompressible wounds.
Ryan Davis Jr   +9 more
wiley   +1 more source

Edge-gracefulness of the composition of paths with null graphs

open access: yesDiscrete Mathematics, 2002
A graph \(G= (V,E)\) with vertex set \(V\) and edge set \(E\) is said to be a \((p,q)\)-graph if \(|V|= p\) and \(|E|= q\). Given two graphs \(G\) and \(H\), the composition of \(G\) and \(H\), denoted by \(G\circ H\), is the graph with vertex set \(V(G)\times V(H)\) in which \((u_1,v_1)\) is adjacent with \((u_2,v_2)\) if and only if \((u_1,u_2)\in E ...
Shiu, Wai Chee   +2 more
openaire   +2 more sources

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

open access: yesAdvanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi   +5 more
wiley   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

open access: yesAdvanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox   +4 more
wiley   +1 more source

>0.05 Is Good: The NORD-h Protocol for Several Hypothesis Analysis Based on Known Risks, Costs, and Benefits [PDF]

open access: yesJournal of Preventive Medicine and Public Health
Statistical testing in medicine is a controversial and commonly misunderstood topic. Despite decades of efforts by renowned associations and international experts, fallacies such as nullism, the magnitude fallacy, and dichotomania are still widespread ...
Alessandro Rovetta   +1 more
doaj   +1 more source

On the null-spaces of acyclic and unicyclic singular graphs

open access: yesLinear Algebra and its Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nath, Milan, Sarma, Bhaba Kumar
openaire   +1 more source

Ultrasound‐Triggered Gelation for Restoring Biomechanical Properties of Degenerated Functional Spinal Units

open access: yesAdvanced Healthcare Materials, EarlyView.
This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans   +11 more
wiley   +1 more source

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