Search results for "formula"
showing 10 items of 755 documents
Monotonicity Formulas for Harmonic Functions in RCD(0,N) Spaces
2023
We generalize to the RCD(0,N) setting a family of monotonicity formulas by Colding and Minicozzi for positive harmonic functions in Riemannian manifolds with nonnegative Ricci curvature. Rigidity and almost rigidity statements are also proven, the second appearing to be new even in the smooth setting. Motivated by the recent work in Agostiniani et al. (Invent. Math. 222(3):1033–1101, 2020), we also introduce the notion of electrostatic potential in RCD spaces, which also satisfies our monotonicity formulas. Our arguments are mainly based on new estimates for harmonic functions in RCD(K,N) spaces and on a new functional version of the ‘(almost) outer volume cone implies (almost) outer metric…
La reformulación del discurso en español en comparación con el alemán
2009
Estudio de la reformulación y los marcadores de reformulación desde una perspectiva contrastiva alemán-español: oder, beziehungsweise, das heisst, und zwar, nämlich, also, o sea, es decir, esto es, a saber, o.
Thermodynamics and Biophysics of Biomedical Nanosystems Applications and Practical Considerations
2019
This book highlights the recent advances of thermodynamics and biophysics in drug delivery nanosystems and in biomedical nanodevices. The up-to-date book provides an in-depth knowledge of bio-inspired nanotechnological systems for pharmaceutical applications. Biophysics and thermodynamics, supported by mathematics, are the locomotive by which the drug transportation and the targeting processes will be achieved under the light of the modern pharmacotherapy. They are considered as scientific tools that promote the understanding of physicochemical and thermotropic functionality and behavior of artificial cell membranes and structures like nanoparticulate systems. Therefore, this book focusses …
Contributo allo studio dell'eccezione nel processo civile. 1) Concetti e principi generali
2013
La storia della teoria dell’eccezione, scrive Schwalbach, mostra una serie ininterrotta di malintesi. Ed in effetti l’istituto, dalla sua lontana origine nel processo formulare romano ad oggi, è stato caratterizzato da complesse e spesso contraddittorie evoluzioni e trasformazioni, parallelamente al mutare del contesto storico-sociale ed allo sviluppo della scienza giuridica. Tuttavia, scomparso il pretore e il mondo romano, scomparsa la visione medievale dell’impero e della compilazione giustinianea, l’istituto è, tuttavia, sopravvissuto legando indissolubilmente il suo significato alla teoria dell’azione. Definire l’eccezione vuol dire definire, innanzitutto, definire l’azione, osserva Co…
Calculation of the conformational dependence of valence and Rydberg states in n-tetrasilane
1999
Abstract Previous CIS/6-31G ∗∗ and CASSCF/6-31G ∗ calculations of valence excited states of n -tetrasilane accounted qualitatively for the observed conformational dependence of condensed-phase UV absorption spectra. In an attempt to understand this result, we have performed CIS calculations with a larger basis set (MC-311G(2d) on Si, 6-311G on H, and 2s, 2p, and 2d diffuse orbitals at molecular center of mass). The first two excited states are of valence character at all dihedral angles if the molecule is isolated. When it is embedded in a rare gas cluster, the lowest four states are of valence character, and the results are nearly identical with those obtained without diffuse orbitals in t…
Il bene dell'intelletto. La pratica fenomenologica di educazione alla ricerca del vero
2016
Una scuola buona ha il compito di formare persone adeguatamente colte. Qui tale compito viene inteso come educazione del pensare, ossia formazione dell'intelligenza e della ragione. La prima tesi argomentata nel saggio è che l'aspetto determinante di quest'opera formativa è costituita dalla coltivazione dell'intelligenza, intesa come capacità del soggetto di vedere. L'impegno maggiore del saggio è però nell'interpretare la fenomenologia come una pratica di ricerca del senso costituita al fondo da un affinamento dell'intelligenza.
Functional a posteriori error equalities for conforming mixed approximations of elliptic problems
2014
In vitro evaluation of glycol chitosan based formulations as oral delivery systems for efflux pump inhibition.
2017
Recently, we have reported that glycol chitosan (GCS) was able to reverse the P- glycoprotein (P-gp) efflux pump. The objective of the present study was to evaluate the potential of two GCS-based dosage forms (aqueous solution or nanoparticle suspension) for oral administration of the P-gp substrate Rho-123. A further aim of the present study was to assess the effect of the glycol chitosan-4-thiobutylamidine thiomer (GCS-TBA) on P-gp activity considering that the corresponding thiomer of chitosan series is a well-known P-gp inhibitor. Pre-treatment of Caco-2 cell monolayer with a GCS solution or GCS-based nanoparticles increased the absorptive transport of Rho-123 across the monolayer of 1.…
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
1996
Resumen basado en el de la publicación Resumen en inglés La evolución histórica del principio de Le Chatelier está relacionada con su uso en el aula de química. La aparente simplicidad en la cual el principio de Le Chatelier fue formulado por primera vez y el éxito logrado en la implementación de algunos procesos industriales importantes le dio un reconocimiento inicial que aún perdura. Sin embargo, desde el comienzo de este siglo, diferentes autores han señalado el carácter limitado de la regla cualitativa y su formulación vaga y ambigua. Además, la termodinámica dada por el Principio de Le Chatelier en algunas formulaciones cuantitativas limitan su aplicabilidad. Sin embargo, la mayoría d…
An implicit mesh discontinuous Galerkin formulation for higher-order plate theories
2019
In this work, a discontinuous Galerkin formulation for higher-order plate theories is presented. The starting point of the formulation is the strong form of the governing equations, which are derived in the context of the Generalized Unified Formulation and the Equivalent Single Layer approach from the Principle of Virtual Displacements. To express the problem within the discontinuous Galerkin framework, an auxiliary flux variable is introduced and the governing equations are rewritten as a system of first-order partial differential equations, which are weakly stated over each mesh element. The link among neighboring mesh elements is then retrieved by introducing suitably defined numerical …