Results 11 to 20 of about 355 (190)

On universal realizability in the left half-plane

open access: yesProyecciones (Antofagasta), 2023
A list Λ = {λ1, λ2,..., λn} of complex numbers is said to be realizable if it is the spectrum of a nonnegative matrix. Λ is said to be universally realizable (UR) if it is realizable for each possible Jordan canonical form allowed by Λ. In this paper, using companion matrices and applying a procedure by Šmigoc, we provide sufficient conditions for the ...
Alfaro, Jaime H., Soto, Ricardo L.
openaire   +2 more sources

Care and COVID 19: Lessons for liberals and neoliberals

open access: yesChild &Family Social Work, EarlyView., 2023
Abstract Within the liberal political traditions, care is regarded as a private matter, a problem of ethics rather than justice. Social justice is framed as an issue of economics (re/distribution), culture (recognition) and/or politics (representation).
Kathleen Lynch
wiley   +1 more source

Potential Universal Engineering Component: Tetracycline Response Nanoswitch Based on Triple Helix-Graphene Oxide. [PDF]

open access: yesMicromachines (Basel), 2022
The overuse of antibiotics can lead to the emergence of drug resistance, preventing many common diseases from being effectively treated. Therefore, based on the special composite platform of P1/graphene oxide (GO) and DNA triple helix, a programmable DNA
Wang L   +6 more
europepmc   +2 more sources

Nested Selves: Self‐Organization and Shared Markov Blankets in Prenatal Development in Humans

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract The immune system is a central component of organismic function in humans. This paper addresses self‐organization of biological systems in relation to—and nested within—other biological systems in pregnancy. Pregnancy constitutes a fundamental state for human embodiment and a key step in the evolution and conservation of our species. While not
Anna Ciaunica   +3 more
wiley   +1 more source

A Convenient Category of Domains [PDF]

open access: yes, 2007
topological spaces, generalising the usual ω-continuous dcppos of domain theory. Our category supports all the standard constructions of domain theory, including the solution of recursive domain equations.
Ingo Battenfeld   +6 more
core   +1 more source

Realizability Semantics of Parametric Polymorphism, General References, and Recursive Types [PDF]

open access: yes, 2009
We present a realizability model for a call-by-value, higher-order programming language with parametric polymorphism, general first-class references, and recursive types.
Støvring, Kristian   +5 more
core   +1 more source

Quasi-isometries and proper homotopy: The quasi-isometry invariance of proper 3-realizability of groups [PDF]

open access: yes, 2019
We recall that a finitely presented group G is properly 3-realizable if for some finite 2-dimensional CW-complex X with π1(X) ∼= G, the universal cover X has the proper homotopy type of a 3-manifold. This purely topological property is closely related
Quintero Toscano, Antonio Rafael   +3 more
core   +1 more source

Emergence of Constructor-Based Irreversibility in Quantum Systems: Theory and Experiment [PDF]

open access: yes, 2022
How irreversibility arises in a universe with time-reversal symmetric laws is a central problem in physics. In this Letter, we discuss a radically different take on the emergence of irreversibility, adopting the recently proposed constructor theory ...
Knoll, Laura T   +9 more
core   +1 more source

Universal realization

open access: yesJournal of Computer and System Sciences, 1979
AbstractA study is made of input-process machines, in the sense of Arbib and Manes, and their behavior. For a given input-process X: K → K the categories Mach(X) of machines and Beh(X) of behaviors are constructed, also a functor E: Mach(X) → Beh(X) which assigns to each machine its behavior.
openaire   +1 more source

Universal Influenza Vaccines, a Dream to Be Realized Soon [PDF]

open access: yesViruses, 2014
Due to frequent viral antigenic change, current influenza vaccines need to be re-formulated annually to match the circulating strains for battling seasonal influenza epidemics. These vaccines are also ineffective in preventing occasional outbreaks of new influenza pandemic viruses.
Han Zhang   +3 more
openaire   +3 more sources

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