On Nietzsche’s Criticism Towards Common Sense Realism in Human, All Too Human I, 11

The paper explores Nietzsche's observations on language in Human, All Too Human I, 11; reflects on the anti-realist position that Nietzsche defends in that aphorism; and focuses on the role she plays in his later investigation on Western culture and its anthropology. As will be argued, Nietzsche's criticism towards common sense realism is consistent with some pragmatist epistemologies developed during the late-nineteenth and early-twentieth century. This treat of " timeliness " does not limit Nietzsche's originality on the topic. In fact, the idea that philosophy can contrast the metaphysical commitment of common sense can be seen as the theoretical tool that allows Nietzsche to operate on the development of European culture and society

The CMS High Level Trigger

The CMS experiment has been designed with a 2-level trigger system: the Level 1 Trigger, implemented on custom-designed electronics, and the High Level Trigger (HLT), a streamlined version of the CMS offline reconstruction software running on a computer farm. A software trigger system requires a tradeoff between the complexity of the algorithms running on the available computing power, the sustainable output rate, and the selection efficiency. Here we will present the performance of the main triggers used during the 2012 data taking, ranging from simpler single-object selections to more complex algorithms combining different objects, and applying analysis-level reconstruction and selection. We will discuss the optimisation of the triggers and the specific techniques to cope with the increasing LHC pile-up, reducing its impact on the physics performance.Comment: PIC2013 conferenc

Pragmatism, Perspectivism, Anthropology. A Consistent Triad

The paper defends the idea that Jamesian pragmatism, Nietzschean perspectivism, and philosophical anthropology represent a consistent triad, for the similarities and connections between the first two positions rest in their engagement with the anthropological question. As will be argued, a) pragmatism is concerned with anthropology and that it deals with a fundamental issue of Nietzsche’s late thought; b) the problem of the type of man (der Typus Mensch) is involved in Nietzsche’s questioning the value of truth, and perspectivism is an alternative view to Platonic and Christian metaphysics which arises from the same phenomenalist conception of knowledge defended by James ; c) Nietzsche’s interest in developing a philosophy that affirms the perspectival character of existence is primarily anthropological, and this is in fact the pragmatic criterion of validity that one can attribute to Nietzschean perspectivism

What Does it Mean to Orient Oneself in Science? On Ernst Mach’s Pragmatic Epistemology

The paper aims to investigate some aspects of Ernst Mach’s epistemology in the light of the problem of human orientation in relation to the world (Weltorientierung), which is a main topic of Western philosophy since Kant. As will be argued, Mach has been concerned with that problem, insofar as he developed an original pragmatist epistemology. In order to support my argument, I firstly investigate whether Mach defended a nominalist or a realist account of knowledge and compare his view to those elaborated by other pragmatist thinkers, such as W. James, H. Vaihinger and H. Poincaré. Secondly, the question of what does it mean, for Mach, to orient ourselves in science is addressed. Finally, it will be argued that, although Mach tried to keep his epistemology restricted to a mere operational and economical account of science, that question involves the wider plane of practical philosophy

Performance of the online track reconstruction and impact on hadronic triggers at the CMS High Level Trigger

The trigger systems of the LHC detectors play a crucial role in determining the physics capabilities of the experiments. A reduction of several orders of magnitude of the event rate is needed to reach values compatible with the detector readout, offline storage and analysis capabilities. The CMS experiment has been designed with a two-level trigger system: the Level 1 (L1) Trigger, implemented on custom-designed electronics, and the High Level Trigger (HLT), a streamlined version of the CMS reconstruction and analysis software running on a computer farm. The software-base HLT requires a trade-off between the complexity of the algorithms, the sustainable output rate, and the selection efficiency. This is going to be even more challenging during Run II, with a higher centre-of-mass energy, a higher instantaneous luminosity and pileup, and the impact of out-of-time pileup due to the 25 ns bunch spacing. The online algorithms need to be optimised for such a complex environment in order to keep the output rate under control without impacting the physics efficiency of the online selection. Tracking, for instance, will play an even more important role in the event reconstruction. In this poster we will present the performance of the online track and vertex reconstruction algorithms, and their impact on the hadronic triggers that make use of b-tagging and of jets reconstructed with the Particle Flow technique. We will show the impact of these triggers on physics performance of the experiment, and the latest plans for improvements in view of the Run II data taking in 2015.Comment: arXiv admin note: substantial text overlap with arXiv:1403.150

A note on the moment map on compact K\"ahler manifolds

We consider compact K\"ahler manifolds acted on by a connected compact Lie group $K$ of isometries in Hamiltonian fashion. We prove that the squared moment map $\|\mu\|^2$ is constant if and only if the manifold is biholomorphically and $K$-equivariantly isometric to a product of a flag manifold and a compact K\"ahler manifold which is acted on trivially by $K$. The authors do not know whether the compactness of $M$ is essential in the main theorem; more generally it would be interesting to have a similar result for (compact) symplectic manifolds.Comment: 4 page

A Hamiltonian stable minimal Lagrangian submanifold of projective space with non-parallel second fundamental form

In this note we show that Hamiltonian stable minimal Lagrangian submanifolds of projective space need not have parallel second fundamental form.Comment: 7 page