Search results for "Object-oriented programming"

Secure integration of multiprotocol instant messenger

2017

Pidgin communicator is a multiprotocol instant messenger client, developed by open source community. It was originally a third party client of AIM (AOL Instant Messenger) protocol for Linux operating system founded in 1998. At present, its main goal is to provide common interface for every protocol it supports, so the user does not need care about protocol to use or peer's IM identifier, while he just want to talk with a Bob. The work focuses mainly on security and functionality aspects like password storage strategies, integration with plugins which provide privacy of communication. This paper shares experiences has been gained during the process of developing and replacement of existing c…

Bagging, bumping, multiview, and active learning for record linkage with empirical results on patient identity data

2011

Record linkage or deduplication deals with the detection and deletion of duplicates in and across files. For this task, this paper introduces and evaluates two new machine-learning methods (bumping and multiview) together with bagging, a tree-based ensemble-approach. Whereas bumping represents a tree-based approach as well, multiview is based on the combination of different methods and the semi-supervised learning principle. After providing a theoretical background of the methods, initial empirical results on patient identity data are given. In the empirical evaluation, we calibrate the methods on three different kinds of training data. The results show that the smallest training data set, …

Negative symptomatology: psychopharmacological strategies and methodological aspects for drug evaluation

1993

Reply: Valproate Treatment in Schizophrenia: Interaction of GABA with Dopamine?

2004

Search for newπ0-like particles produced in association with aτ-lepton pair

2014

We report on a search in e^+e^− annihilations for new π^0-like particles produced in association with a τ-lepton pair. These objects, with a similar mass and similar decay modes to π^0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data.

Studying Indirect Violation of CP, T and CPT in a B-factory

2000

In this work we analyze the observable asymmetries one can build from entangled B-meson states, in order to extract information on the parameters epsilon and delta which govern indirect violation of discrete symmetries. The traditionally proposed observables, based on flavour tags, are not helpful for the study of the Bd-system, where the tiny value of the width difference between physical states clears up such asymmetry effects. Our study makes instead use of CP tags in order to build new asymmetries where the different parameters can be separated out. For this separation, it is decisive to achieve a good time resolution in the measurement of entangled state decays. Nevertheless, even with…

Direct test of time reversal symmetry in the entangled neutral kaon system at a phi-factory

2013

We present a novel method to perform a direct T (time reversal) symmetry test in the neutral kaon system, independent of any CP and/or CPT symmetry tests. This is based on the comparison of suitable transition probabilities, where the required interchange of in out states for a given process is obtained exploiting the Einstein-Podolski-Rosen correlations of neutral kaon pairs produced at a phi-factory. In the time distribution between the two decays, we compare a reference transition like the one defined by the time-ordered decays (l(-), pi pi) with the T-conjugated one defined by (3 pi(0), l(+)). With the use of this and other T-conjugated comparisons, the KLOE-2 experiment at DA Phi NE co…

Results of the commissioning of the Pion Beam Factory at SIS/GSI

1999

We describe briefly the Pion Beam Factory recently installed at SIS/GSI and present the main results of the commissioning performed during September 1998.

ϵ′/ϵ effects from time integrated coherent decays of in a φ-factory

1991

We study the ϵ′/ϵ-effects from time integrated coherent decays of the K0 − K0-system in a φ-factory. A complete set of observables is presented. We paid special attention to backgrounds effects coming from the C = + state, both for Re(ϵ′/ϵ) and Im(ϵ′/ϵ).

Translingual Practices in Global Business : A Longitudinal Study of a Professional Communicative Repertoire

2018

This chapter draws on a longitudinal ethnographic study of a Finnish engineer’s communicative repertoire that develops in the process of professional migration. The participant first works as a factory intern in Germany, then as a project engineer and project manager in Finland, and latterly as an operations manager in China. Here, repertoire is viewed through dynamic and flexible translingual practices, in which people follow, appropriate and invent norms, combine and shuttle between languages, ways of speaking, semiotic resources and modalities in the transnational work space in order to meet, interact, make meaning and build relationships and, ultimately, do their jobs. The data selected…