Automating the configuration of the controls systems of the LHC experiments

The supervisory layer of the Large Hadron Collider (LHC) experiments is based on the Prozeßvisualisierungs- und Steuerungsystem (PVSS) [1] and the Joint COntrols Project (JCOP) Framework (FW) [2]. This controls framework includes a Finite State Machine (FSM) toolkit, which allows to operate the control systems according to a well-defined set of states and commands. During the FSM transitions of the detectors, it is required to re-configure parts of the control systems. All configuration parameters of the devices integrated into the control system are stored in the so-called configuration database. In this paper the JCOP FW FSM-Configuration database tool is presented. This tool ensures the availability of all required configuration data, for a given type of run of the experiment, in the PVSS sub-detector control applications. The chosen implementation strategy is discussed in the paper. The approach enables the standalone operation of different partitions of the detectors simultaneously while ensuring independent data handling

AUTOMATING THE CONFIGURATION OF THE CONTROLS SYSTEMS OF THE LHC EXPERIMENTS

The supervisory layer of the Large Hadron Collider (LHC) experiments is based on the Prozeßvisualisierungs- und Steuerungsystem (PVSS) [1] and the Joint COntrols Project (JCOP) Framework (FW) [2]. This controls framework includes a Finite State Machine (FSM) toolkit, which allows to operate the control systems according to a well-defined set of states and commands. During the FSM transitions of the detectors, it is required to re-configure parts of the control systems. All configuration parameters of the devices integrated into the control system are stored in the so-called configuration database. In this paper the JCOP FW FSM-Configuration database tool is presented. This tool ensures the availability of all required configuration data, for a given type of run of the experiment, in the PVSS sub-detector control applications. The chosen implementation strategy is discussed in the paper. The approach enables the standalone operation of different partitions of the detectors simultaneously while ensuring independent data handling

Sentiment classification of consumer generated online reviews using topic modeling

The development of the Internet and mobile devices enabled the emergence of travel and hospitality review sites, leading to a large number of customer opinion posts. While such comments may influence future demand of the targeted hotels, they can also be used by hotel managers to improve customer experience. In this article, sentiment classification of an eco-hotel is assessed through a text mining approach using several different sources of customer reviews. The latent Dirichlet allocation modeling algorithm is applied to gather relevant topics that characterize a given hospitality issue by a sentiment. Several findings were unveiled including that hotel food generates ordinary positive sentiments, while hospitality generates both ordinary and strong positive feelings. Such results are valuable for hospitality management, validating the proposed approach.info:eu-repo/semantics/acceptedVersio

Youth’s rights and mental health: the role of supportive relations in care

A rights-based approach calls for studies to explore further the extent to which rights’ fulfillment in residential care affects young people’s mental health. A focus on protective factors, such as supportive relations, can inform policies and practices in residential care which is critical for youths’ empowerment and adaptive outcomes. However, existing studies on social support are mainly descriptive and qualitative in nature or focus on the effect of support in mental health. This study builds upon and enhances existing knowledge by exploring the moderating role of social support from educators in residential care and the association between perceived rights and psychological difficulties. A sample of 366 adolescents (53% boys) in residential care (Mage = 14.82; SD = 1.81) were included in this study and completed self-reported measures on perceived rights, support in residential care and psychological difficulties. Social support moderated the relationship between the perception of rights regarding respectful system practices, autonomy and contact with family, as well as psychological difficulties. When greater social support was perceived by the adolescents, higher perceptions of respectful system practices and lower perceptions of autonomy and contact with family were associated with lower levels of psychological difficulties. Results provide evidence for the positive role of rights’ fulfillment in psychological functioning in residential care, as well as the protective role of supportive educators.info:eu-repo/semantics/publishedVersio

Heat exchange between two interacting nanoparticles beyond the fluctuation-dissipation regime

We show that the observed non-monotonic behavior of the thermal conductance between two nanoparticles when they are brought into contact is originated by an intricate phase space dynamics. Here it is assumed that this dynamics results from the thermally activated jumping through a rough energy landscape. A hierarchy of relaxation times plays the key role in the description of this complex phase space behaviour. Our theory enables us to analyze the heat transfer just before and at the moment of contact.Comment: 4 pages, 1 figure, approved for publication in Physical Review Letter

Biological activity of antitumoural MGBG: the structural variable

Abstract The present study aims at determining the structure-activity relationships (SAR’s) ruling the biological function of MGBG (methylglyoxal bis(guanylhydrazone)), a competitive inhibitor of S-adenosyl-l-methionine decarboxylase displaying anticancer activity, involved in the biosynthesis of the naturally occurring polyamines spermidine and spermine. In order to properly understand its biochemical activity, MGBG’s structural preferences at physiological conditions were ascertained, by quantum mechanical (DFT) calculations

O “Jogo dos Alimentos”: mudança atitudinal face à alimentação e ao sedentarismo em crianças do 1.º Ciclo

O presente estudo tem como objectivo testar o “Jogo dos Alimentos” que tem como suporte teórico o Modelo da Probabilidade da Elaboração. Destina-se à prevenção primária da obesidade em crianças a frequentarem o ensino básico, através da mudança atitudinal face à alimentação hiper calórica e ao sedentarismo. A sua aplicação em duas escolas mostra alterações positivas e significativas nas atitudes e intenção comportamental das crianças face à alimentação e à ocupação de tempos livres. Estudos futuros podem beneficiar com o aperfeiçoamento desta técnica, no âmbito do desenvolvimento de programas de intervenção nesta área, destinados a esta e a outras faixas etárias