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See detailPricing Perspective for SWIPT in OFDM-based Multi-User Wireless Cooperative Systems
Gautam, Sumit UL; Lagunas, Eva UL; Vuppala, Satyanarayana UL et al

Scientific Conference (2019, April)

We propose a novel formulation for joint maximization of total weighted sum-spectral efficiency and weighted sum-harvested energy to study Simultaneous Wireless Information and Power Transfer (SWIPT) from ... [more ▼]

We propose a novel formulation for joint maximization of total weighted sum-spectral efficiency and weighted sum-harvested energy to study Simultaneous Wireless Information and Power Transfer (SWIPT) from a pricing perspective. Specifically, we consider that a transmit source communicates with multiple destinations using Orthogonal Frequency Division Multiplexing (OFDM) system within a dual-hop relay-assisted network, where the destination nodes are capable of jointly decoding information and harvesting energy from the same radio-frequency (RF) signal using either the time-switching (TS) or power-splitting (PS) based SWIPT receiver architectures. Computation of the optimal solution for the aforementioned problem is an extremely challenging task as joint optimization of several network resources introduce intractability at high numeric values of relays, destination nodes and OFDM sub-carriers. Therefore, we present a suitable algorithm with sub-optimal results and good performance to compute the performance of joint data processing and harvesting energy under fixed pricing methods by adjusting the respective weight factors, motivated by practical statistics. Furthermore, by exploiting the binary options of the weights, we show that the proposed formulation can be regulated purely as a sum-spectral efficiency maximization or solely as a sum-harvested energy maximization problem. Numerical results illustrate the benefits of the proposed design under several operating conditions and parameter values. [less ▲]

Detailed reference viewed: 119 (16 UL)
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See detailPrikaz knjige - Dermot Hodson: Governing the Euro Area in Good Times and Bad
Tkalec, Igor UL

in Mali Levijatan (2017), 4

Detailed reference viewed: 66 (7 UL)
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See detailPriLok:Citizen-protecting distributed epidemic tracing
Esteves-Verissimo, Paulo UL; Decouchant, Jérémie UL; Volp, Marcus UL et al

E-print/Working paper (2020)

Contact tracing is an important instrument for national health services to fight epidemics. As part of the COVID-19 situation, many proposals have been made for scaling up contract tracing capacities with ... [more ▼]

Contact tracing is an important instrument for national health services to fight epidemics. As part of the COVID-19 situation, many proposals have been made for scaling up contract tracing capacities with the help of smartphone applications, an important but highly critical endeavor due to the privacy risks involved in such solutions. Extending our previously expressed concern, we clearly articulate in this article, the functional and non-functional requirements that any solution has to meet, when striving to serve, not mere collections of individuals, but the whole of a nation, as required in face of such potentially dangerous epidemics. We present a critical information infrastructure, PriLock, a fully-open preliminary architecture proposal and design draft for privacy preserving contact tracing, which we believe can be constructed in a way to fulfill the former requirements. Our architecture leverages the existing regulated mobile communication infrastructure and builds upon the concept of "checks and balances", requiring a majority of independent players to agree to effect any operation on it, thus preventing abuse of the highly sensitive information that must be collected and processed for efficient contact tracing. This is enforced with a largely decentralised layout and highly resilient state-of-the-art technology, which we explain in the paper, finishing by giving a security, dependability and resilience analysis, showing how it meets the defined requirements, even while the infrastructure is under attack. [less ▲]

Detailed reference viewed: 43 (3 UL)
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See detailPRIMA 2017: Principles and Practice of Multi-Agent Systems - 20th International Conference, Nice, France, October 30 - November 3, 2017 Proceedings
An, Bo; Bazzan, Ana L. C.; Leite, João et al

Scientific Conference (2017)

Detailed reference viewed: 84 (5 UL)
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See detailLa prima direttiva UE di diritto penale sulla tratta di esseri umani
Simonato, Michele UL; Spiezia, Filippo

in Cassazione penale (2011), (9), 3197

Detailed reference viewed: 115 (1 UL)
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See detailLa Prima Guerra mondiale come attestato di idoneità: Sull’arte dell’economia bellica e sull’affare della poesia
Heimböckel, Dieter UL

in De Giovanni, Flora; Perrone Capano, Lucia (Eds.) “L’eccezionalità del presente”. Scrivere la Grande Guerra (2016)

Detailed reference viewed: 40 (1 UL)
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See detailPrimacy effects in attention, recall and judgment patterns of simultaneously presented student information: Evidence from an eye-tracking study
Hörstermann, Thomas UL; Pit-Ten Cate, Ineke UL; Krolak-Schwerdt, Sabine UL et al

in Hughes, Gary (Ed.) Student Achievement: Perspectives, Assessment and Improvement Strategies (2016)

Social cognition research has demonstrated that processes of memory and judgment formation are not only affected by information type but also by the sequence in which this information is received. These ... [more ▼]

Social cognition research has demonstrated that processes of memory and judgment formation are not only affected by information type but also by the sequence in which this information is received. These sequence (i.e. primacy and recency) effects are of special interest if the first or last information activates a social category, as this may increase the risk of stereotypical biases in decision making. This may be especially pertinent to the educational domain as studies have shown teachers´ judgments are influenced not only by students´ academic achievement but also their social background. Therefore, this study investigated primacy effects in the assessment of student performance. This study not only assessed the impact of sequence on memory and judgment, but also measured attention via eye-tracking techniques, hence offering a more detailed test of the assumption of the primacy effect (i.e. increased attention to the first piece of information). Forty participants were presented four student descriptions, containing information on the student’s grades, standardized test results, working behavior and social background. For half of the participants, social background information was presented in the top left position on the screen and grade information in the top right position. For the other half these positions were switched. The sequence of information was therefore not predefined by the experimenter, but left to the participant, however, given the left-to-right and top-to-bottom orientation common in Western European languages, the information in the top-left position was expected to draw initial attention of participants. After reading each student description, participants recommended a fitting secondary school track and later recalled student information. The design of the study is a 2×2 factorial design, with the position order (social background vs. grades in top-left position) as a between-subject factor and type of information (social background vs. grades) as a within-subject factor. According our expectations, eye-movements (i.e. fixations during the first second of presentation), showed a significant effect of the position order. Information in the top-left position received not only more initial attention, but also more attention throughout, than the same information positioned in the top-right position, thus indicating a primacy effect in attention. This result was only partially reflected in the recall data, and no differences resulted in the accuracy of judgments. The results confirmed that the positioning of simultaneously presented information leads to a primacy effect in attention, but does not produce primacy effects in subsequent memory and judgments. In regard to the common structure of various dossiers and records, which first list a student’s name and personal information, these findings imply that such structure may maximize teachers’ attention to social background information, stating a potential source of social disparities in educational systems. [less ▲]

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See detailPrimary and recurrent glioma patient-derived orthotopic xenografts (PDOX) represent relevant patient avatars for precision medicine
Golebiewska, Anna UL; Hau, Ann-Christin; Oudin, Anais et al

E-print/Working paper (2020)

Patient-derived cancer models are essential tools for studying tumor biology and preclinical interventions. Here, we show that glioma patient-derived orthotopic xenografts (PDOXs) enable long-term ... [more ▼]

Patient-derived cancer models are essential tools for studying tumor biology and preclinical interventions. Here, we show that glioma patient-derived orthotopic xenografts (PDOXs) enable long-term propagation of patient tumors and represent clinically relevant patient avatars. We created a large collection of PDOXs from primary and recurrent gliomas with and without mutations in IDH1, which retained histopathological, genetic, epigenetic and transcriptomic features of patient tumors with no mouse-specific clonal evolution. Longitudinal PDOX models recapitulate the limited genetic evolution of gliomas observed in patient tumors following treatment. PDOX-derived standardized tumor organoid cultures enabled assessment of drug responses, which were validated in mice. PDOXs showed clinically relevant responses to Temozolomide and to targeted treatments such as EGFR and CDK4/6 inhibitors in (epi)genetically defined groups, according to MGMT promoter and EGFR/CDK status respectively. Dianhydrogalactitol, a bifunctional alkylating agent, showed promising potential against glioblastoma. Our study underlines the clinical relevance of glioma PDOX models for translational research and personalized treatment studies. [less ▲]

Detailed reference viewed: 79 (1 UL)
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See detailPrimary energy used in centralized and decentralized ventilation systems measured in field tests in residential buildings
Merzkirch, Alexander UL; Maas, Stefan UL; Scholzen, Frank UL et al

in Proceedings of the 26th AIVC Conference, Effective Ventilation in high performance buildings (2015, September)

Ventilation systems can save heat energy by using heat recovery, but consume electrical energy to power the fans. In practice, the energy efficiency of those systems can be lower than expected, when ... [more ▼]

Ventilation systems can save heat energy by using heat recovery, but consume electrical energy to power the fans. In practice, the energy efficiency of those systems can be lower than expected, when compared to the nominal values provided by the manufacturer. In this paper, results of a comprehensive field tests with 20 centralized and 60 decentralized ventilation systems for residential buildings and the calculation of the primary energy savings of those devices are presented. Factors like volume flow unbalances, shortcuts, temperature change rates and specific fan power have been addressed by tracer gas technology and other means and been used as input factors to calculate the primary energy balance of those devices. Every system showed positive primary energy savings. The mean value for centralized systems was 2.92 Wh/m3 with a high standard deviation of 2.23 Wh/m3, while the decentralized systems showed higher savings of around 4.75 Wh/m3 with a standard deviation of 0.01 to 0.15 Wh/m3. In general, the calculated savings in field tests were significantly lower compared to the case of using nominal values as input parameters. [less ▲]

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See detailPrimary vision and facial emotion recognition in early Parkinson's disease
Hipp, Géraldine; Diederich, Nico UL; Pieria, Viannina et al

in Journal of the Neurological Sciences (2014), 338

Background: In early stages of idiopathic Parkinson's disease (IPD), lower order vision (LOV) deficits including reduced colour and contrast discrimination have been consistently reported. Data are less ... [more ▼]

Background: In early stages of idiopathic Parkinson's disease (IPD), lower order vision (LOV) deficits including reduced colour and contrast discrimination have been consistently reported. Data are less conclusive concerning higher order vision (HOV) deficits, especially for facial emotion recognition (FER). However, a link between both visual levels has been hypothesized. Objective: To screen for both levels of visual impairment in early IPD. Methods: We prospectively recruited 28 IPD patients with disease duration of 1.4 +/− 0.8 years and 25 healthy controls. LOV was evaluated by Farnsworth-Munsell 100 Hue Test, Vis-Tech and Pelli-Robson test. HOV was examined by the Ekman 60 Faces Test and part A of the Visual Object and Space recognition test. Results: IPD patients performed worse than controls on almost all LOV tests. The most prominent difference was seen for contrast perception at the lowest spatial frequency (p = 0.0002). Concerning FER IPD patients showed reduced recognition of “sadness” (p = 0.01). “Fear” perception was correlated with perception of low contrast sensitivity in IPD patients within the lowest performance quartile. Controls showed a much stronger link between “fear” perception” and low contrast detection. Conclusion: At the early IPD stage there are marked deficits of LOV performances, while HOV performances are still intact, with the exception of reduced recognition of “sadness”. At this stage, IPD patients seem still to compensate the deficient input of low contrast sensitivity, known to be pivotal for appreciation of negative facial emotions and confirmed as such for healthy controls in this study. [less ▲]

Detailed reference viewed: 104 (1 UL)
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See detailPrime Brokerage under AIFMD
Zetzsche, Dirk Andreas UL

in Zetzsche, Dirk Andreas (Ed.) The AIFM Directive (2012)

Detailed reference viewed: 73 (1 UL)
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See detailThe prime divisors of the number of points on abelian varieties
Perucca, Antonella UL

in Journal de Theorie des Nombres de Bordeaux (2015)

Detailed reference viewed: 75 (2 UL)
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See detailPrime note sulla proprietà fondiaria del monastero di S. Maria del Lentasio di Milano nel secolo XIII
Salemme, Timothy UL

in Nuova Rivista Storica (2008), 92(1), 93-114

Detailed reference viewed: 33 (0 UL)
See detailPrime Processing in orthographical and phonological priming: When the mask doesn’t mask the prime but the target does.
Delord, Sandrine; Holender, Daniel; Reuter, Robert UL

Scientific Conference (1998, September)

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See detail(Prime-)Brokerage
Zetzsche, Dirk Andreas UL

in The AIFM Directive (2020)

Detailed reference viewed: 7 (0 UL)
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See detail(Prime-)Brokerage under AIFMD
Zetzsche, Dirk Andreas UL

in Zetzsche, Dirk Andreas (Ed.) The AIFM Directive (2015)

Detailed reference viewed: 53 (2 UL)
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See detailA primer on relative weights analysis. Illustrations of its utility for management researchers
Stadler, Matthias UL; Cooper-Thomas, Helena D.; Greiff, Samuel UL

in Psychological Test and Assessment Modeling (2017)

Detailed reference viewed: 61 (1 UL)
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See detailLa primera evaluación de la escuela y los conflictos entre las escuelas de Primaria y de Secundaria de Luxemburgo en torno a 1850
Voss, Peter UL

in Lenz, Thomas; Tröhler, Daniel (Eds.) Trayectorias del desarrollo de los sistemas educativos mediatices y el ambito publico en Luxemburgo (2015)

Detailed reference viewed: 86 (7 UL)
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See detailPrimi approdi della Cassazione italiana al Bill of Social Right made in Europe: uno sguardo all'europeizzazione dei diritti tra Lussemburgo e Strasburgo, passando per Lisbona
Simonato, Michele UL; Mattei, Alberto

in Europeanrights.eu - Osservatorio sul rispetto dei diritti fondamentali in Europa (2010), (20), 1-10

Detailed reference viewed: 48 (3 UL)