Results 11 to 20 of about 13,108,497 (315)

Second-order Darboux displacements [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2003
The potentials for a one dimensional Schroedinger equation that are displaced along the x axis under second order Darboux transformations, called 2-SUSY invariant, are characterized in terms of a differential-difference equation. The solutions of the Schroedinger equation with such potentials are given analytically for any value of the energy.
Samsonov, B. F.   +3 more
openaire   +2 more sources

A second order logic of existence [PDF]

open access: yes, 1969
Publisher's, offprint versionA. N. Prior in [9] has suggested an approach towards a second order logic of existence where, following medieval logicians, we distinguish “between predicates (like ‘is red’, ‘is hard’, etc.) which entail existence, and ...
Cocchiarella, Nino
core   +1 more source

Second-Order Democratic Aggregation [PDF]

open access: yes, 2018
Aggregated second-order features extracted from deep convolutional networks have been shown to be effective for texture generation, fine-grained recognition, material classification, and scene understanding. In this paper, we study a class of orderless aggregation functions designed to minimize interference or equalize contributions in the context of ...
Tsung-Yu Lin   +2 more
openaire   +2 more sources

The Coming Multi-Order World [PDF]

open access: yes, 2016
The article shows that the current international system is changing towards a completely new form of international system, conceptualized as a multi-order system. The suggestion for a multi-order world stands in contrast to three current narratives about
Flockhart, Trine
core   +1 more source

Second-Order Consistencies

open access: yesJournal of Artificial Intelligence Research, 2011
In this paper, we propose a comprehensive study of second-order consistencies (i.e., consistencies identifying inconsistent pairs of values) for constraint satisfaction. We build a full picture of the relationships existing between four basic second-order consistencies, namely path consistency (PC), 3-consistency (3C), dual consistency (DC) and 2 ...
Christophe Lecoutre   +2 more
openaire   +5 more sources

No local cancellation between directionally opposed first-order and second-order motion signals

open access: yes, 2000
Despite strong converging evidence that there are separate mechanisms for the processing of first-order and second-order motion, the issue remains controversial. Qian, Andersen and Adelson (J.
Scott-Samuel, NE   +4 more
core   +1 more source

Pure Second-Order Logic with Second-Order Identity

open access: yesNotre Dame Journal of Formal Logic, 2010
Pure second-order logic is second-order logic without functional or first-order variables. In "Pure Second-Order Logic," Denyer shows that pure second-order logic is compact and that its notion of logical truth is decidable. However, his argument does not extend to pure second-order logic with second-order identity.
openaire   +3 more sources

SECOND-ORDER INVARIANTS AND HOLOGRAPHY [PDF]

open access: yesInternational Journal of Modern Physics D, 2012
Motivated by recent works on the role of the holographic principle in cosmology, we relate a class of second-order Ricci invariants to the IR cutoff characterizing the holographic dark energy density. The choice of second-order invariants provides an invariant way to account the problem of causality for the correct cosmological cutoff, since the ...
Luongo, Orlando   +2 more
openaire   +3 more sources

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

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