7,236 research outputs found
Physics Analysis Expert PAX: First Applications
PAX (Physics Analysis Expert) is a novel, C++ based toolkit designed to
assist teams in particle physics data analysis issues. The core of PAX are
event interpretation containers, holding relevant information about and
possible interpretations of a physics event. Providing this new level of
abstraction beyond the results of the detector reconstruction programs, PAX
facilitates the buildup and use of modern analysis factories. Class structure
and user command syntax of PAX are set up to support expert teams as well as
newcomers in preparing for the challenges expected to arise in the data
analysis at future hadron colliders.Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics
(CHEP03), La Jolla, Ca, USA, March 2003, 7 pages, LaTeX, 10 eps figures. PSN
THLT00
Estruturação de base cartográfica para apoio ao inVEST.
Editores técnicos: MarcÃlio José Thomazini, Elenice Fritzsons, PatrÃcia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos
Potentially preventable readmissions - narrowing identification of patients at risk of unplanned readmission
Anti- and Protumorigenic Effects of PPAR γ
Peroxisome proliferator-activated receptor-γ (PPARγ) is a member of the nuclear receptor superfamily of ligand-activated transcription factors that plays an important role in the control of gene expression linked to a variety of physiological processes, including cancer. Ligands for PPARγ include naturally occurring fatty acids and the thiazolidinedione class of antidiabetic drugs. Activation of PPARγ in a variety of cancer cells leads to inhibition of growth, decreased invasiveness, reduced production of proinflammatory cytokines, and promotion of a more differentiated phenotype. However, systemic activation of PPARγ has been reported to be protumorigenic in some in vitro systems and in vivo models. Here, we review the available data that implicate PPARγ in lung carcinogenesis and highlight the challenges of targeting PPARγ in lung cancer treatments
Between Horizontality and Centralisation: Organisational Form and Practice in the Finns Party
This article provides the first comprehensive analysis of the Finns Party’s (Perussuomalaiset [PS]) formal organisation and how it operates in practice. Following the framework of this thematic issue, to what extent does the PS’s organisation follow the mass-party model and how centralised is the party in its internal decision-making? Analysis of party documents, association registries, and in-depth interviews with 24 party elite representatives reveal that the PS has developed a complex organisational structure and internal democracy since 2008. However, the power of members in regard to the party’s internal decision-making remains limited, despite the party’s leadership having facilitated a more horizontal and inclusionary organisational culture after 2017. The study reveals how the party combines radically democratic elements of its leadership selection and programme development with a very high level of centralisation of formal power in the party executive, and how the party organisationally relies on a vast and autonomous but heterogeneous network of municipal associations. The article also discusses how PS elites perceive the advantages of having a wide and active organisation characterised by low entry and participation requirements, and how party-adjacent online activism both complements and complicates the functioning of the formal party organisation
Maximal variance reduction for stochastic propagators with applications to the static quark spectrum
We study a new method -- maximal variance reduction -- for reducing the
variance of stochastic estimators for quark propagators. We find that while
this method is comparable to usual iterative inversion for light-light mesons,
a considerable improvement is achieved for systems containing at least one
infinitely heavy quark. Such systems are needed for heavy quark effective
theory. As an illustration of the effectiveness of the method we present
results for the masses of the ground state and excited states of
mesons and baryons. We compare these results with the experimental
spectra involving quarks.Comment: 31 pages with 7 postscript file
Multiple Parton Interactions, top--antitop and W+4j production at the LHC
The expected rate for Multiple Parton Interactions (MPI) at the LHC is large.
This requires an estimate of their impact on all measurement foreseen at the
LHC while opening unprecendented opportunities for a detailed study of these
phenomena. In this paper we examine the MPI background to top-antitop
production, in the semileptonic channel, in the early phase of data taking when
the full power of --tagging will not be available. The MPI background turns
out to be small but non negligible, of the order of 20% of the background
provided by W+4j production through a Single Parton Interaction. We then
analyze the possibility of studying Multiple Parton Interactions in the W+4j
channel, a far more complicated setting than the reactions examined at lower
energies. The MPI contribution turns out to be dominated by final states with
two energetic jets which balance in transverse momentum, and it appears
possible, thanks to the good angular resolution of ATLAS and CMS, to separate
the Multiple Parton Interactions contribution from Single Parton Interaction
processes. The large cross section for two jet production suggests that also
Triple Parton Interactions (TPI) could provide a non negligible contribution.
Our preliminary analysis suggests that it might be indeed possible to
investigate TPI at the LHC.Comment: Typos fixed. Published in JHE
Physicality and Cooperative Design
CSCW researchers have increasingly come to realize that material work setting and its population of artefacts play a crucial part in coordination of distributed or co-located work. This paper uses the notion of physicality as a basis to understand cooperative work. Using examples from an ongoing fieldwork on cooperative design practices, it provides a conceptual understanding of physicality and shows that material settings and co-worker’s working practices play an important role in understanding physicality of cooperative design
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