cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards an EBRAINS service for brain wave analysis: Cobrawap
Creators: name: Lupo, Cosimo
name: Bernava, Irene
name: Gutzen, Robin
name: Pastorelli, Elena
name: Capone, Cristiano
name: De Luca, Chiara
name: Allegra Mascaro, Anna Letizia
name: Resta, Francesco
name: Manasanch, Arnau
name: Karvounari, Sofia
name: Mathioulaki, Eleni
name: Pavone, Francesco Saverio
name: Sanchez-Vives, Maria V.
name: Mattia, Maurizio
name: Grun, Sonja
name: Davison, Andrew
name: Paolucci, Pier Stanislao
name: Denker, Michael
name: De Bonis, Giulia
Publisher: name: Zenodo
Year: 2022

description: The current variety of data from neuronal recordings, collected with heterogeneous experimental techniques and setups, poses the challenge to consistently compare data across experiments, species, and spatio-temporal scales, and to provide standardized metrics for model validation and calibration. In the context of brain wave analysis, Cobrawap (Collaborative Brain Wave Analysis Pipeline) is a successful tool, built to achieve these goals. Aiming at a wider diffusion and at facilitating the usage of this tool for an extended community of users, we are pointing at providing Cobrawap as a service accessible through the EBRAINS web portal, leveraging computational resources from High-Performance Computing (HPC) platforms belonging to the FENIX-ICEI federation.
Agents-Based Modeling for a Transactive Energy Trading Blockchain Framework
Creators: name: Boumaiza, A.
name: Sajjad, M.
name: Sanfilippo, A.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1847-1849
description: The growing interest for decentralized production of renewables calls for new energy trade approaches. An energy blockchain platform enables a decentralized energy market, eliminating the need of an intermediary trust entity. We propose to explore the design of an energy blockchain platform in the Qatari context using an ABM simulation framework with real-world data from households in Doha. The aim of this paper is to illustrate the essential components and functioning of a blockchain system and implement a generic ABM simulation framework for energy exchange. A major novel contribution of this work is the development of a virtual environment to test and validate the secure and equitable energy trading among participants using a simplified agent modeling approach to analyze the impacts of peer-to-peer energy trading on market operational performance.
Q-factor enhancement in all-dielectric anisotropic nanoresonators
Creators: name: Liu, Wei
name: Miroshnichenko, Andrey E.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is proposed and demonstrated that Q-factor of optical resonators can be significantly enhanced by introducing an extra anisotropic cladding. We study the optical resonances of all-dielectric core-shell nanoresonators and reveal that radially anisotropic claddings can be employed to squeeze more energy into the core area, leading to stronger light confinement and thus significant Q-factor enhancement. We further show that the required homogenous claddings of unusual anisotropy parameters can be realized through all-dielectric multi-layered isotropic structures, which offers realistic extra flexibilities of resonance manipulations for optical resonators.
description: 20 pages, 5 figures and Comments Welcomed
Spin squeezing in dipolar spinor condensates
Creators: name: Kajtoch, Dariusz
name: Witkowska, Emilia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of dipolar interactions on the level of squeezing in spin-1 Bose-Einstein condensates by using the single mode approximation. We limit our consideration to the $\mathfrak{su}(2)$ Lie subalgebra spanned by spin operators. The biaxial nature of dipolar interactions allows for dynamical generation of spin-squeezed states in the system. We analyze the phase portraits in the reduced mean-filed space in order to determine positions of unstable fixed points. We calculate numerically spin squeezing parameter showing that it is possible to reach the strongest squeezing set by the two-axis countertwisting model. We partially explain scaling with the system size by using the Gaussian approach and the frozen spin approximation.
The digital layer: alternative data for regional and innovation studies
Creators: name: Abbasiharofteh, Milad
name: Krüger, Miriam
name: Kinne, Jan
name: Lenz, David
name: Resch, Bernd
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: The lack of large-scale data revealing the interactions among firms has constrained empirical studies. Utilizing relational web data has remained unexplored as a remedy for this data problem. We constructed a Digital Layer by scraping the inter-firm hyperlinks of 600,000 German firms and linked the Digital Layer with several traditional indicators. We showcase the use of this developed dataset by testing whether the Digital Layer data can replicate several theoretically motivated and empirically supported stylized facts. The results show that the intensity and quality of firms’ hyperlinks are strongly associated with the innovation capabilities of firms and, to a lesser extent, with hyperlink relations to geographically distant and cognitively close firms. Finally, we discuss the implications of the Digital Layer approach for an evidence-based assessment of sectoral and place-based innovation policies.
The super-super exchange mechanism in iron-based antiperovskite chalco-halides
Creators: name: Liu, Kai
name: Lu, Zhong-Yi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By using the first-principles electronic structure calculations, we have systematically studied the magnetism in three recently synthesized iron-based antiperovskite chalco-halides: Ba$_3$(FeS$_4$)Cl, Ba$_3$(FeS$_4$)Br, and Ba$_3$(FeSe$_4$)Br. These compounds consist of edge-sharing Ba$Q_6$ ($Q$=Cl or Br) octahedra intercalated with isolated Fe$X_4$ ($X$=S or Se) tetrahedra. We find that even though the shortest distances between the nearest-neighboring Fe atoms in these three compounds already exceed 6 Å, much larger than the bond length of a chemical bonding, they all remarkably show antiferromagnetic (AFM) coupling along $b$ axis with very weak spin-spin correlation along $a$ axis. Our study shows that the mechanism underlying this novel AFM coupling is such a new type of exchange interaction between the nearest-neighboring Fe-based super-moments mediated by Ba cations, which we call the super-super exchange interaction, in which each magnetic Fe atom partially polarizes its four nearest-neighboring $X$ atoms to form a super-moment through $p$-$d$ orbital hybridization and the $X$ atoms in neighboring Fe$X_4$ tetrahedra along $b$ axis antiferromagnetically couple with each others through the intermediate Ba cations. Different from the conventional superexchange, here it is cations rather than anions that mediate two neighboring super-moments. According to the calculated strength of the AFM coupling, we predict that among these compounds the highest AFM phase transition temperature $T_N$ may reach 110 K in Ba$_3$(FeSe$_4$)Br, in comparison with the observed $T_N$s of 84 K in Ba$_3$(FeS$_4$)Br and 95 K in Ba$_3$(FeS$_4$)Cl.
description: 6 pages, 6 figures, 2 tables. Comments are welcome
Matilde Serao
Creators: Trivelli, Anita
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: An Italian writer and journalist who was born in Patrasso, Greece, to a Greek mother and Neapolitan father, an anti-Bourbon exile, Matilde Serao’s relentless and eclectic writing was distinguished by her extraordinarily committed professionalism. She cofounded several newspapers in Rome and Naples with Edoardo Scarfoglio, whom she married in 1885. For years, they were the most brilliant and followed couple in Italian journalism. After divorcing her husband, Serao established her own daily, the Neapolitan Il Giorno (1904), which she headed until her death. She was the first Italian woman, and until recently the only woman, to run a newspaper in Italy.
Energy Model for a Rural Region in Germany - Methodology
Creators: name: Leonhard, M.-C.
name: Te Heesen, H.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1850-1854
description: To reduce greenhouse gas emissions for rural regions in Germany, the share of renewable energy must increase within the next years. For this purpose, we developed the energy model simulation software UCB SEnMod (UCB Sector Coupling Energy Model), which simulates an energy system with 100 % renewable energy. Hourly values represent the demand for heat, electricity, and the traffic sector, as well as the production applications, wind energy, photovoltaics, hydropower, bioenergy, and solar thermal energy. Because of the fluctuations in the generation of electric power, a storage system is included. The simulation software SEnMod links the energy generation, energy consumption, and energy storage devices to cover the energy demand by energy production. Surplus or shortfall of the demand is compensated by trading between the regions.
Spatial dependence in patient migration flows
Creators: name: Piedra-Peña, Juan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Virology

description: This study analyses whether higher efficiency performance of Ecuadorian hospitals attracts larger inflows of interregional patients to a given hospital and assesses the existence of spatial dependence in the patient migration network. We develop an innovative two-stage approach. In the first stage, we use conditional order-m estimations to obtain robust hospital efficiency. In the second stage, we apply a spatial Durbin interaction model to estimate the effect of hospital efficiency on patient migration flows and disentangle the spillover effects. We identify the positive effect of specialized hospitals’ efficiency in attracting patients from other regions alongside spillover effects in the migration dyad.
Convolutional Neural Networks Applied to Sky Images for Short-Term Solar Irradiance Forecasting
Creators: name: Paletta, Q.
name: Lasenby, J.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1834-1837
description: Despite considerable advances in the estimation of the solar resource, there is still a need for better solar forecasting to improve its integration into the energy supply. Fish-eye cameras are emerging in-situ meteorological sensors that have already demonstrated promising and interesting results for high temporal resolution and very short-term solar forecasting. However, current approaches to model the cloud cover dynamics from sky images still lack precision regarding the spatial configuration of clouds, their temporal dynamics and their physical interaction with solar radiation. The work described here aims at bringing innovative insights via a novel approach to irradiance forecasting using the Deep Learning framework, which constitutes an effective environment for a richer modelling of the cloud cover and its dynamics. The study shows that Convolutional Neural Networks (CNNs) are able to successfully estimate future irradiance from a sequence of past images of the sky. The corresponding 10-min forecast skill based on the Mean Square Error reaches 40% when evaluated on a set of 4000 unseen samples and shows an additional 10% performance improvement on the skill score, when past data of the same day are used to train the model. This outlines the need to incorporate historical data of the day in short term forecasting.
Infinite sharply multiply transitive groups
Creators: name: Tent, Katrin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20B22

description: The finite sharply $2$-transitive groups were classified by Zassenhaus in the 1930's. They essentially all look like the group of affine linear transformations $x\mapsto ax+b$ for some field (or at least near-field) $K$. However, the question remained open whether the same is true for infinite sharply $2$-transitive groups. There has been extensive work on the structures associated to such groups indicating that Zassenhaus' results might extend might extend to the infinite setting. For many specific classes of groups, like Lie groups, linear groups, or groups definable in o-minimal it was indeed proved that all examples inside the given class arise in this way as affine groups. However, it recently turned out that the reason for the lack of a general proof was the fact that there are plenty of sharply $2$-transitive groups which do not arise from fields or near-fields! In fact, it is not too hard to construct concrete examples (see below). In this note, we survey general sharply $n$-transitive groups and describe how to construct examples not arising from fields.
description: Survey, to appear in Jahresbericht der DMV
Do serving and ex-serving personnel of the UK armed forces seek help for perceived stress, emotional or mental health problems?
Creators: name: Stevelink, Sharon A. M.
name: Jones, Norman
name: Jones, Margaret
name: Dyball, Daniel
name: Khera, Charandeep K.
name: Pernet, David
name: MacCrimmon, Shirlee
name: Murphy, Dominic
name: Hull, Lisa
name: Greenberg, Neil
name: MacManus, Deirdre
name: Goodwin, Laura
name: Sharp, Marie-Louise
name: Wessely, Simon
name: Rona, Roberto J.
name: Fear, Nicola T.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Background: UK armed forces personnel are at risk of occupational psychological injury; they are often reluctant to seek help for such problems. Objective: We aimed to examine and describe sources of support, prevalence and associates of help-seeking among UK serving and ex-serving personnel. Method: A total of 1450 participants who self-reported a stress, emotional or mental health problem in the past 3 years were sampled from a health and wellbeing study and subsequently completed a telephone interview comprising measures of mental disorder symptoms, alcohol misuse and help-seeking behaviour. Results: Seven per cent of participants had not sought any help, 55% had accessed medical sources of support (general practitioner or mental health specialist), 46% had received formal non-medical (welfare) support and 86% had used informal support. Gender, age, perceived health, functional impairment, social support, deployment, alcohol and comorbidity impacted upon the choice of help source. Conclusions: This study found that the majority of those with perceived mental health problems sought some form of help, with over half using formal medical sources of support. • In contrast to previous studies of help-seeking in serving and ex-serving personnel, and the public perception, this study found that the majority of those with perceived mental health problems sought some form of help.• Over half used formal medical sources of support.• Younger males who reported lower levels of social support were less likely to seek support.
Signature of a polyamorphic transition in the THz spectrum of vitreous GeO2
Creators: name: Cunsolo, Alessandro
name: Li, Yan
name: Kodituwakku, Chaminda N.
name: Wang, Shibing
name: Antonangeli, Daniele
name: Bencivenga, Filippo
name: Battistoni, Andrea
name: Verbeni, Roberto
name: Tsutsui, Satoshi
name: Baron, Alfred Q. R.
name: Mao, Ho-Kwang
name: Bolmatov, Dima
name: Cai, Yong Q.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The THz spectrum of density fluctuations, $S(Q, ω)$, of vitreous GeO$_2$ at ambient temperature was measured by inelastic x-ray scattering from ambient pressure up to pressures well beyond that of the known $α$-quartz to rutile polyamorphic (PA) transition. We observe significant differences in the spectral shape measured below and above the PA transition, in particular, in the 30-80 meV range. Guided by first-principle lattice dynamics calculations, we interpret the changes in the phonon dispersion as the evolution from a quartz-like to a rutile-like coordination. Notably, such a crossover is accompanied by a cusp-like behavior in the pressure dependence of the elastic response of the system. Overall, the presented results highlight the complex fingerprint of PA phenomena on the high-frequency phonon dispersion.
description: 18 pages, 5 figures
Civic engagement and socio-economic proximity in urban areas
Creators: name: Andriani, Luca
name: Angelini, Pier Paolo
name: Filippetti, Andrea
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Diversity boosts innovation and creativity in urban contexts, but it can also undermine civicness by negatively impacting individuals’ trust of other citizens, also hampering economic and institutional performance. By employing a spatial analysis approach using geocoded data from 5776 residents in three major urban Italian areas, we explore whether sharing geographical space in a context of socio-economic difference (in terms of income and education) affects individuals’ choices to be civically engaged. The evidence reveals that the geographical proximity of an individual to others with different socio-economic characteristics decreases their civic engagement. A key challenge when designing urban policies is to reconcile the positive effects of diversity as it influences different economic–societal aspects, with the associated social tensions.
First Steps towards Energy-Positive Territorial Collectivites in the French Overseas Departments: Optimal Mix of Electric Mobility, Photovoltaics and Energy Storage in Reunion Island
Creators: name: Guérin De Montgareuil, A.
name: Ingar, I.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1838-1846
description: The Reunion Department, one of the local administrative bodies in Reunion Island, consumes a lot of electricity and aims to become an energy positive and carbon free institution. To reach its objective, it set up a program for the energy management and for the use of renewable energy, particularly from photovoltaics, in its property assets. Nevertheless, its vehicle fleet consumes a lot of fossil fuels, and the Department wants to explore the technical and financial feasibility of the conversion of this fleet to electricity, with the requirements of producing this energy with photovoltaics and not relying on the existing fossil fuel power plants. This study proposes a method to approach this kind of problem, which will arise in many various territories in the near future. It is shown that the sunny climate of Reunion allows the setup of a system covering all the needs of an electric fleet, with photovoltaics and energy storage systems compensating the intermittency of the photovoltaic production. Photovoltaics have to be sized for the season with the least solar resource to avoid big interseasonal electricity storage. The profitability of the system depends a lot on the ability of the Reunion Department to benefit from the international costs of photovoltaics and storage systems and on its possibility to use the overproduction of electricity, for example for the cooling of the buildings of the Department during summer. In the most favourable cases, the conversion to electric mobility looks technically and financially feasible.
Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko
Creators: name: Lin, Zhong-Yi
name: Lai, I. -L.
name: Su, C. -C.
name: Ip, W. -H.
name: Lee, J. -C.
name: Wu, J. -S.
name: Vincent, J. -B.
name: La Forgia, F.
name: Sierks, H.
name: Barbieri, C.
name: Lamy, P. L.
name: Rodrigo, R.
name: Koschny, D.
name: Rickman, H.
name: Keller, H. U.
name: Agarwal, J.
name: A'Hearn, M. F.
name: Barucci, M. A.
name: Bertaux, J. -L.
name: Bertini, I.
name: Bodewits, D.
name: Cremonese, G.
name: Da Deppo, V.
name: Davidsson, B.
name: Debet, S.
name: De Cecco, M.
name: Fornasier, S.
name: Fulle, M.
name: Groussin, O.
name: Gutierrez, P. J.
name: Guttler, C.
name: Hviid, S. F.
name: Jorda, L.
name: Knollenberg, J.
name: Kovacs, G.
name: Kramm, J. -R.
name: Kuhrt, E.
name: Kuppers, M.
name: Lara, L. M.
name: Lazzarin, M.
name: Lopez-Moreno, J. J.
name: Lowry, S.
name: Marzari, F.
name: Michalik, H.
name: Mottola, S.
name: Naletto, G.
name: Oklay, N.
name: Pajola, M.
name: Rozek, A.
name: Thomas, N.
name: Tubiana, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We analyze the physical properties and dynamical origin of a curved jet of comet 67P/Churyumov-Gerasimenko that was observed repeatedly in several nucleus rotations starting on May 30 and persisting until early August, 2015. We simulated the motion of dust grains ejected from the nucleus surface under the influence of the gravity and viscous drag effect of the expanding gas flow from the rotating nucleus. The formation of the curved jet is a combination of the size of the dust particles (~0.1-1 mm) and the location of the source region near the nucleus equator. This enhances the spiral feature of the collimated dust stream after the dust is accelerated to a terminal speed on the order of m/s.
description: 5pages, 5 figures
Machine Learning Driven Optimization of a Hybrid Electrical and Thermal System
Creators: name: Dallapiccola, M.
name: Trentin, F.
name: Barchi, G.
name: Dipasquale, C.
name: Fedrizzi, R.
name: Moser, D.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1820-1825
description: With the diffusion of electric heating and cooling devices, coupling the electric and thermal systems in the residential sector is becoming attractive and could help to increase photovoltaic penetration. The heating and cooling needs of buildings correspond to an important component of the total energy consumption of the residential sector. Thus, it is important to properly design the thermal and electric systems accounting of the interactions from the first phases of the design process. In the design phase, detailed models implemented in dynamic simulation tools can be used for the sizing process of system components, but they hardly can be adopted in optimization algorithms due to the computational time required for each simulation. This is particularly true for multi-objective optimization algorithms, where usually a wide number of simulations is required. In this work, TRNSYS was used to train a machine learning model that is used in a multi-objective optimization with the final goal of improving the design of the thermal system and optimizing the KPIs of a coupled photovoltaic plus battery system.
Heterogeneous diffusion, viscosity and the Stokes Einstein relation in binary liquids
Creators: name: Schober, H. R.
name: Peng, H. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the origin of the breakdown of the Stokes-Einstein relation (SER) between diffusivity and viscosity in undercooled melts. A binary Lennard-Jones system, as a model for a metallic melt, is studied by molecular dynamics. A weak breakdown at high temperatures can be understood from the collectivization of motion, seen in the isotope effect. The strong breakdown at lower temperatures is connected to an increase in dynamic heterogeneity. On relevant timescales some particles diffuse much faster than the average or than predicted by the SER. The van-Hove self correlation function allows to unambiguously identify slow particles. Their diffusivity is even less than predicted by the SER. The time-span of these particles being slow particles, before their first conversion to be a fast one, is larger than the decay time of the stress correlation. The contribution of the slow particles to the viscosity rises rapidly upon cooling. Not only the diffusion but also the viscosity shows a dynamically heterogeneous scenario. We can define a "slow" viscosity. The SER is recovered as relation between slow diffusivity and slow viscosity.
Psychophysiological stress response and memory in borderline personality disorder
Creators: name: Duesenberg, Moritz
name: Wolf, Oliver T.
name: Metz, Sophie
name: Roepke, Stefan
name: Fleischer, Juliane
name: Elias, Valentina
name: Renneberg, Babette
name: Otte, Christian
name: Wingenfeld, Katja
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Background: Previously, we found that patients with borderline personality disorder (BPD) but not healthy controls (HC) showed improved memory retrieval after hydrocortisone administration. Objective: In this study, we examined whether increases in endogenous cortisol after psychosocial stress are associated with memory function in patients with BPD and in healthy individuals. Methods: We recruited 49 female patients with BPD and 49 female HC. All participants were exposed to a psychosocial stressor, the Trier Social Stress Test (TSST) and a control condition (Placebo (P-)TSST) in randomized order. Salivary cortisol, alpha amylase (sAA) and blood pressure were measured in response to stress. Subsequently, we examined free recall of a previously learned word list, autobiographical memory, and working memory. Results: We found a stress*time*group interaction effect for the cortisol response and for sAA to stress, which is mainly triggered by a slightly different increase in cortisol between groups from pre to post TSST. Furthermore, BPD patients showed a less pronounced increase in diastolic blood pressure compared to HC after stress. There was no effect of stress on memory performance in any tests, either in healthy controls or in patients with BPD. Conclusion: Our results suggest a slightly blunted response of the HPA axis and the sympathetic nervous system to stress in BPD compared to healthy women. In contrast to hydrocortisone administration, psychosocial stress did not improve memory retrieval in BPD patients. This might be explained by lower cortisol concentrations and parallel increases in norepinephrine and negative affect after stress. • Previously, we found that patients with BPD showed improved memory retrieval after hydrocortisone. • Here, we examined the effects of psychosocial stress on memory in patients with BPD. • Patients with BPD had a blunted response of the sympathetic nervous system to stress. • There were only small differences in cortisol release between BPD patients and healthy controls. • Psychosocial stress did not improve memory retrieval in BPD patients.
Understanding and controlling the evolution of nanomorphology and crystallinity of organic bulk-heterojunction blends with solvent vapor annealing
Creators: name: Harreiß, Christina
name: Langner, Stefan
name: Wu, Mingjian
name: Berlinghof, Marvin
name: Rechberger, Stefanie
name: Will, Johannes
name: Conroy, Michele
name: BANGERT, URSEL
name: Unruh, Tobias
name: Brabec, Christoph J.
name: Spiecker, Erdmann
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Solvent vapor annealing (SVA) has been shown to significantly improve the device performance of organic bulk-heterojunction solar cells, yet the mechanisms linking nanomorphology, crystallinity of the active layer, and performance are still largely missing. Here, the mechanisms are tackled by correlating the evolution of nanomorphology, crystallinity, and performance with advanced transmission electron microscopy methods systematically. Model system of DRCN5T:PC71BM blends are SVA treated with four solvents differing in their donor and acceptor solubilities. The choice of solvent drastically influences the rate at which the maximum device efficiency establishes, though similar values can be achieved for all solvents. The donor solubility is identified as a key parameter that controls the kinetics of diffusion and crystallization of the blend molecules, resulting in an inverse relationship between optimal annealing time and donor solubility. For the highest efficiency, optimum domain size and single-crystalline nature of DRCN5T fibers are found to be crucial. Moreover, the π–π stacking orientation of the crystallites is directly revealed and related to the nanomorphology, providing insight into the charge carrier transport pathways. Finally, a qualitative model relating morphology, crystallinity, and device efficiency evolution during SVA is presented, which may be transferred to other light-harvesting blends.
Magnetic structure of the magnetocaloric compound AlFe2B2
Creators: name: Cedervall, Johan
name: Andersson, Mikael Svante
name: Sarkar, Tapati
name: Delczeg-Czirjak, Erna K.
name: Bergqvist, Lars
name: Hansen, Thomas C.
name: Beran, Premysl
name: Nordblad, Per
name: Sahlberg, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The crystal and magnetic structures of AlFe2B2 have been studied with a combination of X-ray and neutron diffraction and electronic structure calculations. The magnetic and magnetocaloric properties have been investigated by magnetisation measurements. The samples have been produced using high temperature synthesis and subsequent heat treatments. The compound crystallises in the orthorhombic crystal system Cmmm and it orders ferromagnetically at 285 K through a second order phase transition. At temperatures below the magnetic transition the magnetic moments align along the crystallographic $a$-axis. The magnetic entropy change from 0 to 800 kA/m was found to be -1.3 J/K kg at the magnetic transition temperature.
The Potential of PV Module Tilt and Technology for Tuning Daily Energy Yield across the Year
Creators: name: Govaerts, J.
name: Horvath, I.T.
name: Manganiello, P.
name: Poortmans, J.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1826-1830
description: In the future, with costs for PV modules rapidly declining and an expected increase of PV penetration in energy production, the cost for PV installations may be impacted more and more by balancing costs of storage, load management, and curtailment, rather than the currently dominating hardware components (PV modules and BOS components) and their installation. While the impact of the temperature coefficient has been investigated and published, in this paper we want to also include the impact of tilt. With our physics-based bottom-up modeling approach, taking into account coupled optical, thermal and electrical effects we quantify with high accuracy PV production throughout the year. The modeling allows a very fine time granularity, but here in particular, we want to look at daily and seasonal energy yield (rather than intra-day generation). Additionally, we want to focus more on the locations with a high potential mismatch between PV generation (with a traditional system optimized for yearly energy yield) and electricity/energy consumption throughout the year. As such, Ottawa is chosen for its high potential with high relative irradiance and very low temperatures in winter. With its climate data, energy yield then simulated as a function of the tilt of the module, as well as its technology, in the form of its temperature coefficient. The parameters of the modules are extracted from commercial datasheets in order to be as relevant as possible. For a tilt optimized towards yearly energy yield, a module with a high temperature coefficient can result already in an improved energy yield over the winter season of 1% compared to a module with a low temperature coefficient, and an additional 1% in winter and in fall if also the low-light behaviour is increased for the high temperature coefficient module. If the tilt is also considered for optimization, we indicate how further improvements may be possible, though simulations towards this end are still being streamlined and results taking into account both effects of temperature coefficient and tilt will be produced in the coming months.
Optimization of a 4.6-kW Residential Hybrid Solar Photovoltaic (PV) System - A Case Study
Creators: name: Viljoen, M.
name: Bekker, J.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1831-1833
description: This paper presents design considerations and results for a hybrid solar system installed at a residence in Vanderbijlpark, South Africa. Design considerations include the choice of inverter, solar panels as well as the arrangement and mounting of the solar panels. Results presented illustrate the effect of the solar system for different scenarios typical of hybrid inverter behaviour in that energy can be utilized from the utility grid, solar panels or from the battery pack. Furthermore, energy not utilized by loads can be stored back into the grid under certain settings within the inverter. Electrical energy utilization and storage needs to be optimized for specific circumstances, for which illustrations are given. Suitable conclusions are reached, and suggestions made.
Reduction of Required Storage Capacities for a 100% Renewable Energy Supply in Germany, if New PV Systems are Installed With East-West Tracking Systems at Increased Elevation Angles
Creators: name: Krauter, S.
name: Rustemovic, D.
name: Khatibi, A.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1818-1819
description: Due to the strong reduction of PV prices, storage plays a dominating role in overall system costs. A steeper elevation angle would result in a more balanced seasonal PV yield, at the cost of PV yield reductions during summer, but allowing reduced storage capacities. Additionally, the effect of a single-axis tracking system has been investigated, generating more electricity during the morning and evening hours, thus reducing daily storage requirements. The necessary PV size and storage capacities required for the German energy supply (1,500 TWh after electrification of all sectors) via 100% renewable energies and a 50% solar share have been calculated via the HOMER Pro software, considering the bridging of periods of "dark lulls“ in winter, using costs of 2030 (Table 1). Results: The increase of module elevation angles above the typical 30° leads to a reduction of investment and supply costs. The optimum is reached at a cost reduction of -1.5% for an elevation angle at the latitude of the installation site. An explanation is that high elevation angles are favorable for clear winter days, but not at all for the critical days with diffuse irradiance only, so the battery capacity must be increased. For the same reason, tracking systems do not offer any cost advantage (at least for the ones without an option for horizontal positioning during diffuse days).
Quantum state tomography via reduced density matrices
Creators: name: Xin, Tao
name: Lu, Dawei
name: Klassen, Joel
name: Yu, Nengkun
name: Ji, Zhengfeng
name: Chen, Jianxin
name: Ma, Xian
name: Long, Guilu
name: Zeng, Bei
name: Laflamme, Raymond
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum state tomography via local measurements is an efficient tool for characterizing quantum states. However it requires that the original global state be uniquely determined (UD) by its local reduced density matrices (RDMs). In this work we demonstrate for the first time a class of states that are UD by their RDMs under the assumption that the global state is pure, but fail to be UD in the absence of that assumption. This discovery allows us to classify quantum states according to their UD properties, with the requirement that each class be treated distinctly in the practice of simplifying quantum state tomography. Additionally we experimentally test the feasibility and stability of performing quantum state tomography via the measurement of local RDMs for each class. These theoretical and experimental results advance the project of performing efficient and accurate quantum state tomography in practice.
description: 10 pages, 10 figures. All comments are welcome!
Triggering Demand-Side-Management: Correlation of Electricity Prices, Share of Renewables, CO2-Contents, and Grid-Frequency in the German Electricity Grid
Creators: name: Krauter, S.
name: Zhang, L.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1815-1817
description: To provide a simple instrument to operate residential Load-Shifting or Demand-Side-Management systems, the measurement of the actual grid frequency seems to be an appropriate method. Due to the present inflexibility and the lack of sufficient throttling capabilities of lignite and nuclear power plants, a surplus of electricity generation occurs during periods of high wind and solar power generation. While the specific CO2- emission is decreasing then due to the increased share of Renewables, the grid frequency is increasing (to a certain limit). Using the grid frequency as an indicator to switch-on and off certain loads (loads that do not require power permanently (e.g. dishwashers, washing machines, dryers, fridges and freezers, heaters) could provide a simple, inexpensive demand-side management indicator to lower specific CO2emssions and costs (if a dynamic consumption tariff is available). To check the truthfulness of that hypothesis, the grid and frequency data of the German grid of the year 2018 have been collected and a the correlation between grid frequency, power surplus, share of renewables vs. CO2-contents and price at the European energy exchange (EEX) have been calculated. The results show: Correlation between frequency and share of renewables is quite low (r = 0.155) due to the fact that primary grid control quickly compensates deviations from the 50 Hz nominal frequency. There is a good anti-correlation (r = - 0.687) between the EEXprices and the share of renewables in the grid. Over the years, correlation between electricity trading prices (EEX) and CO2 emissions is quite good (r =0.665), within the one year (2018) that correlation almost doesn’t exist, possibly due to the inflexibility of the bulky lignite power plants that even operate at negative prices.
Amino-functionalized ceramic capillary membranes for controlled virus retention
Creators: name: Bartels, Julia
name: Souza, Marina N.
name: Schaper, Amelie
name: Árki, Pál
name: Kroll, Stephen
name: Rezwan, Kurosch
Publisher: name: ASC Publications
Year: 2016
Subjects: subject: Adsorption
subject: Ceramics
subject: Filtration
subject: Fluxes
subject: Membranes
subject: Mimenima
subject: 660

description: A straightforward chemical functionalization strategy using aminosilanes for high-flux yttria-stabilized zirconia capillary membranes is presented (macroporous, d50 = 144 nm, open porosity =49%, membrane flux ∼150 L/(m(2)hbar)). Three different aminosilanes with one, two or three amino groups per silane molecule, namely 3-aminopropyltriethoxysilane (APTES), N-(2-aminoethyl)-3-aminopropyltriethoxysilane (AE-APTES) and N-(3-trimethoxysilylpropyl)diethylenetriamine (TPDA), are used to generate the amino-functionalized membranes. With a higher number of amino groups per silane molecule increased loading capacities between 0.44 and 1.01 accessible amino groups/nm(2) membrane are achieved. Streaming potential measurements confirm that the zeta-potential of the membrane surface is converted from negative (non-functionalized) to positive (amino-functionalized). By operation in dead-end filtration mode using the model virus MS2 (diameter = 25 nm, IEP = 3.9) the virus retention capacity of the amino-functionalized membranes is significantly increased and log reduction values (LRVs) of up to 9.6 ± 0.3 (TPDA) are obtained whereas a LRV < 0.3 is provided by the non-functionalized membranes. Long-term dead-end filtration experiments for 1 week reveal a high stability of immobilized aminosilanes (TPDA), being robust against leaching. By iterative backflushing with desorption buffer MS2-loaded membranes are successfully regenerated being reusable for a new filtration cycle. The presented functionalization platform is highly promising for controlled virus retention.
Letter from J. R. Ackerley to John Betjeman, [June 1940-July 1940?]
Creators: name: Ackerley, J. R. (Joe Randolph), 1896-1967
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Ackerley, J. R. (Joe Randolph), 1896-1967
valueUri: http://id.worldcat.org/fast/12552
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172

description: Part of a collection of letters to John Betjeman from Joe Randolph "J. R." Ackerley (writer and literary editor of the BBC's weekly magazine The Listener, and open homosexual). Ackerley asks Betjeman where they should meet for lunch.
Fermi LAT Stacking Analysis of Swift Localized Gamma-ray Bursts
Creators: name: LAT Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We perform a comprehensive stacking analysis of data collected by the Fermi Large Area Telescope (LAT) of gamma-ray bursts (GRB) localized by the Swift spacecraft, which were not detected by the LAT but which fell within the instrument's field of view at the time of trigger. We examine a total of 79 GRBs by comparing the observed counts over a range of time intervals to that expected from designated background orbits, as well as by using a joint likelihood technique to model the expected distribution of stacked counts. We find strong evidence for subthreshold emission at MeV to GeV energies using both techniques. This observed excess is detected during intervals that include and exceed the durations typically characterizing the prompt emission observed at keV energies and lasts at least 2700 s after the co-aligned burst trigger. By utilizing a novel cumulative likelihood analysis, we find that although a burst's prompt gamma-ray and afterglow X-ray flux both correlate with the strength of the subthreshold emission, the X-ray afterglow flux measured by Swift's X-ray Telescope (XRT) at 11 hr post trigger correlates far more significantly. Overall, the extended nature of the subthreshold emission and its connection to the burst's afterglow brightness lend further support to the external forward shock origin of the late-time emission detected by the LAT. These results suggest that the extended high-energy emission observed by the LAT may be a relatively common feature but remains undetected in a majority of bursts owing to instrumental threshold effects.
description: Contact Authors: D. Kocevski, danielkocevski@nasa.gov; J. Chiang, jchiang@slac.stanford.edu; J. Racusin, judith.racusin@nasa.gov; 39 page, 13 figures, 1 Table, Accepted to ApJ
Electric Grid Planning for a Net-Zero-City with Massive PV Production
Creators: name: Pflugradt, N.
name: Muntwyler, U.
Publisher: name: WIP
Year: 2020
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 1809-1810
description: In times of accelerating climate change, increasing electrification of heating and mobility and rapidly sinking PV costs, it becomes more and more critical for utility companies to provide an electricity grid that can cope with the future challenges. As a research project the future electricity load of a small swiss town was analyzed in detail for every single building for different scenarios and the impact on the grid was calculated. It was shown that the additional costs for the grid for going net-zero with the entire city is surprisingly small, if a good combination of curtailment, decentralized storage and detailed advanced planning is used. On the other hand, trying to brute-force a net-zero city right now without these components would require upgrading more than 25% of all cables and nearly all substations.
Geschichtliches Verständnis der Kirche und kirchliches Verständnis der Geschichte
Creators: name: Poulat, Émile
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 7 Nr. 8/9 (1971): Concilium: Internationale Zeitschrift für Theologie, Band 7, Heft 8/9