Search results for " Classical"

Two examples related to conical energies

2022

In a recent article we introduced and studied conical energies. We used them to prove three results: a characterization of rectifiable measures, a characterization of sets with big pieces of Lipschitz graphs, and a sufficient condition for boundedness of nice singular integral operators. In this note we give two examples related to sharpness of these results. One of them is due to Joyce and M\"{o}rters, the other is new and could be of independent interest as an example of a relatively ugly set containing big pieces of Lipschitz graphs.

Monoclonal antibodies against components of the classical pathway of complement.

1989

Activation of the classical pathway of complement involves several binding and enzymatic cleavage processes. Binding and enzymatic activation results in the appearance of new structures in the individual components. This report describes the different activation steps for C1q, C1r, C1s, C4 and C2 and summarizes monoclonal antibodies reported so far which recognize either conserved epitopes or activation-dependent epitopes with particular emphasis on neoepitopes occurring during the activation cascade.

The Role of the Amygdala in the Extinction of Conditioned Fear

2006

The amygdala has long been known to play a central role in the acquisition and expression of fear. More recently, convergent evidence has implicated the amygdala in the extinction of fear as well. In rodents, some of this evidence comes from the infusion of drugs directly into the amygdala and, in particular, into the basolateral complex of the amygdala, during or after extinction learning. In vivo electrophysiology has identified cellular correlates of extinction learning and memory in the lateral nucleus of that structure. Human imaging experiments also indicate that amygdaloid activity correlates with extinction training. In addition, some studies have directly identified changes in mole…

A bécsi klasszikus dalirodalom a zeneiskolai szolfézsoktatásban = The role of Viennese classical songs in teaching solfeggio at music schools

2011

Hogyan neveljünk értő közönséget a komolyzenének?

2010

The unspoken pressure of tradition : East Asian classical musicians in western classical music

2013

Itäaasialaisia klassisia muusikoita käsittelevät artikkelit ovat olleet yleisiä eurooppalaisissa klassisen musiikin lehdissä siitä lähtien kun itäaasialaiset alkoivat yhä suuremmassa määrin voittaa kansainvälisiä musiikkikilpailuita ja luoda kansainvälistä uraa 1900-luvun viimeisinä vuosikymmeninä. Läntinen taidemusiikki on kansainvälistymässä aikana, jolloin pelot klassisen musiikin kuolemasta ovat myös päässeet otsikoihin Euroopassa. Itäaasialaiset muusikot työskentelevät kompleksisella kulttuurien kentällä, jossa heidän muusikkoutensa on jatkuvasti arvostelun alaisena. Tämän tutkimuksen tarkoitus oli saada selville, miten itäaasialaiset klassiset muusikot ja heidän kulttuurinen identitee…

“Natural wages dynamics in a Ricardian growth model”

2006

Ricardian growth models are generally built on the assumption of a constant natural wage. Such an assumption conceals the fact that classical economists were aware that in growing economies workers' normal pattern of consumption steadily rise both in terms of quantity and quality. In the first part of the chapter we gather some classical hints on the relationship between economic growth and natural wages in order to provide a rational reconstruction of the classical point of view on natural wage dynamics. In the second part of the chapter we propose a formal analysis of the dynamics of a Ricardian model with endogenous natural wage

Selective breeding for endurance running capacity affects cognitive but not motor learning in rats

2012

The ability to utilize oxygen has been shown to affect a wide variety of physiological factors often considered beneficial for survival. As the ability to learn can be seen as one of the core factors of survival in mammals, we studied whether selective breeding for endurance running, an indication of aerobic capacity, also has an effect on learning. Rats selectively bred over 23 generations for their ability to perform forced treadmill running were trained in an appetitively motivated discrimination-reversal classical conditioning task, an alternating T-maze task followed by a rule change (from a shift-win to stay-win rule) and motor learning task. In the discrimination-reversal and T-maze …

Intrinsic Lipschitz Graphs and Vertical β-Numbers in the Heisenberg Group

2016

The purpose of this paper is to introduce and study some basic concepts of quantitative rectifiability in the first Heisenberg group $\mathbb{H}$. In particular, we aim to demonstrate that new phenomena arise compared to the Euclidean theory, founded by G. David and S. Semmes in the 90's. The theory in $\mathbb{H}$ has an apparent connection to certain nonlinear PDEs, which do not play a role with similar questions in $\mathbb{R}^{3}$. Our main object of study are the intrinsic Lipschitz graphs in $\mathbb{H}$, introduced by B. Franchi, R. Serapioni and F. Serra Cassano in 2006. We claim that these $3$-dimensional sets in $\mathbb{H}$, if any, deserve to be called quantitatively $3$-rectifi…

Spectral multipliers and wave equation for sub-Laplacians: lower regularity bounds of Euclidean type

2018

Let $\mathscr{L}$ be a smooth second-order real differential operator in divergence form on a manifold of dimension $n$. Under a bracket-generating condition, we show that the ranges of validity of spectral multiplier estimates of Mihlin--H\"ormander type and wave propagator estimates of Miyachi--Peral type for $\mathscr{L}$ cannot be wider than the corresponding ranges for the Laplace operator on $\mathbb{R}^n$. The result applies to all sub-Laplacians on Carnot groups and more general sub-Riemannian manifolds, without restrictions on the step. The proof hinges on a Fourier integral representation for the wave propagator associated with $\mathscr{L}$ and nondegeneracy properties of the sub…