cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Deformable Model for Magnetic Vortex Pinning
Creators: name: Burgess, Jacob A. J.
name: Losby, Joseph E.
name: Freeman, Mark R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A two-parameter analytical model of the magnetic vortex in a thin disk of soft magnetic material is constructed. The model is capable of describing the change in evolution of net vortex state magnetization and of core position when the vortex core interacts with a magnetic pinning site. The model employs a piecewise, physically continuous, magnetization distribution obtained by the merger of two extensively used one-parameter analytical models of the vortex state in a disk. Through comparison to numerical simulations of ideal disks with and without pinning sites, the model is found to accurately predict the magnetization, vortex position, hysteretic transitions, and 2-D displacement of the vortex in the presence of pinning sites. The model will be applicable to the quantitative determination of vortex pinning energies from measurements of magnetization.
description: 27 pages, 7 figures, including supplementary information, ancillary files:3 supplementary movies
Elastic enhancement factor as a quantum chaos probe
Creators: name: Kharkov, Yaroslav A.
name: Sokolov, Valentin V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent development of the resonance scattering theory with a transient from the regular to chaotic internal dynamics inspires renewed interest to the problem of the elastic enhancement phenomenon. We reexamine the question what the experimentally observed value of the elastic enhancement factor can tell us about the character of dynamics of the intermediate system. Noting first a remarkable connection of this factor with the time delays variance in the case of the standard Gaussian ensembles we then prove the universal nature of such a relation. This reduces our problem to that of calculation of the Dyson's binary form factor in the whole transition region. By the example of systems with no time-reversal symmetry we then demonstrate that the enhancement can serve as a measure of the degree of internal chaos.
description: 5 pages, 1 figure, The version accepted for publication in Phys. Lett. B
Quantum Rabi hexagonal ring in an artificial magnetic field
Creators: name: Li, Lin-Jun
name: Feng, Li-Lu
name: Dai, Jia-Hao
name: Zhang, Yu-Yu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present exotic quantum phases in a quantum Rabi hexagonal ring, which is derived by an analytical solution. We find that an artificial magnetic field applied in the ring induces an effect magnetic flux in the even and odd subring. It gives rise to two chiral quantum phases besides a ferro-superradiant and an antiferro-superradiant phases. With analogy to the magnetic system, two chiral phases are distinguished by the magnetization orientation in the $xy$ plane in two subrings, which correspond to skyrmion structures with different vorticity. In such chiral phases, photons in the subrings triangle flow in the same or opposite directions by comparing to the current in the hexagonal ring, which depend on the signs of the induced magnetic flux in the subrings. Interestingly, the critical exponents of the excitation energy in two chiral phases are the same as that of the subring triangle, exhibiting subring-size dependent critical exponents. Our analysis can be straightforwardly extended to a larger lattice size with subrings of a triangular or hexagonal structure, predicting a novel universality class of superradiant phase transitions. An implementation of the system considered is an exciting prospect in quantum many-body simulations of light-matter interactions in future.
description: 7 pages,4 figures
Implications of NSI constraints from ANTARES and IceCube on a simplified $Z^\prime$ model
Creators: name: Cabarcas, J. M.
name: Parada, Alexander
name: Quintero-Poveda, Nestor
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recently the neutrino experiments ANTARES and IceCube have released new constraints to the non-standard neutrino interaction (NSI) parameter $ε^d_{μτ}$ (flavor off-diagonal). These new constraints are stronger than those obtained from a combination of COHERENT and neutrino oscillation data. In the light of the recent constraints from ANTARES and IceCube data on the NSI parameter $ε^d_{μτ}$, in this work, we study the new physics implications on the parameter space of a simplified $Z^\prime$ model with lepton flavor violating ($μτ$) couplings. For a $Z^\prime$ boson with a mass heavier than the $τ$ lepton, our results show that ANTARES and IceCube can provide additional constraints to such a new physics scenario with $μτ$ couplings, when compared to bounds from low-energy flavor physics. Moreover, these neutrino experiments can exclude a similar region than ATLAS experiment, showing the potential to provide complementary information to the one obtained from direct searches at the Large Hadron Collider. The impact of the expected sensitivity at DUNE and Belle II experiments is also studied.
description: 7 pages, 2 figures (3 plots). V3: Final version matching with the version published in Phys. Lett. B. Analysis improved, conclusions modified, References added
FASE 1 DE MODELADO DE ESTRUCTURAS CRISTALINA
Creators: name: Monita, Jorge
Publisher: name: figshare
Year: 2023
Subjects: Other information and computing sciences not elsewhere classified

description: In this document, describes the work carried out during the stay from September to Decem-
 ber 2021.
 The project is intended for the Polytechnic University of Victoria, for didactic way about
 the crystallography.
 The app of visualization of crystalline structures is focused on learning the behavior of
 atoms within different structures and how they make up different types of network to have a
 better compression of the structure shown.
 In the period, work was carried out on the projection of seven by fourteen bravais nets
 having the functionality of rotation of the structure for a greater appreciation of these and
 other characteristics that help to contemplate the characteristics of the developed structures.
Ludwig Linsmayer, Politische Kultur im Saargebiet 1920–1932. Symbolische Politik, verhinderte Demokratisierung, nationalisiertes Kulturleben in einer abgetrennten Region, 1992
Creators: name: Ackermann, Volker
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 21, Nr. 3 (1994)
title:  Gli eroi son tutti giovani e belli. Il cinema degli eroi tra memoria coloniale, condanna del fascismo e nuovi e vecchi modelli di genere (1949-1954)
Creators: name: Giuliani  , Gaia
Publisher: name: RomaTrE-Press
Year: 2019

description: In questo mio contributo mi concentro su come l’identità razziale degli italiani, articolata in modo compiuto dal fascismo come il risultato della convergenza tra mediterraneità e bianchezza, venga a tradursi, nel dopoguerra, in una sua versione ‘repubblicana’, ancora debitrice nei confronti del fascismo di alcuni suoi elementi strutturali, ma anche profondamente riarticolata a partire dal nuovo contesto storico, politico e sociale. Tale identità verrà indagata in modo più specifico a partire dalle costruzioni della bellezza maschile e femminile incarnate dai grandi modelli popolari: i divi e le dive del cinema definito ‘degli eroi’ (1949-1954).
description: Cinema e identità italiana
Impact of angular differential imaging on circumstellar disk images
Creators: name: Milli, J.
name: Mouillet, D.
name: Lagrange, A. M.
name: Boccaletti, A.
name: Mawet, D.
name: Chauvin, G.
name: Bonnefoy, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Direct imaging of circumstellar disks requires high-contrast and high-resolution techniques. The angular differential imaging (ADI) technique is one of them, initially developed for point-like sources but now increasingly applied to extended objects. This new field of application raises many questions because the disk images reduced with ADI depend strongly on the amplitude of field rotation and the ADI data reduction strategy. Both of them directly affect the disk observable properties. Our aim is to characterize the applicability and biases of some ADI data reduction strategies for different disk morphologies. A particular emphasis is placed on parameters mostly used for disks: their surface brightness, their width for a ring, and local features such as gaps or asymmetries. We first present a general method for predicting and quantifying those biases. In a second step we illustrate them for some widely used ADI algorithms applied to typical debris disk morphologies: inclined rings with various inner/outer slopes and width. Last, our aim is also to propose improvements of classical ADI to limit the biases on extended objects. Simulated disks seen under various observing conditions were used to reduce ADI data and quantify the resulting biases. These conclusions complements previous results from NaCo L' real-disk images of HR4796A. ADI induces flux losses on disks. This makes this technique appropriate only for low- to medium-inclination disks. A theoretical criterion is derived to predict the amount of flux loss for a given disk morphology, and quantitative estimates of the biases are given in some specific configurations. These biases alter the disk observable properties, such as the slopes of their surface brightness or their radial/azimuthal extent. Additionally, this work demonstrates that ADI can very easily create artificial features without involving astrophysical processes.
Breakdown of Conventional Winding Number Calculation in One-Dimensional Lattices with Interactions Beyond Nearest Neighbors
Creators: name: Alisepahi, Amir Rajabpoor
name: Sarkar, Siddhartha
name: Sun, Kai
name: Ma, Jihong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Topological insulators hold promises to realize exotic quantum phenomena in electronic, photonic, and phononic systems. Conventionally, topological indices, such as winding numbers, have been used to predict the number of topologically protected domain-wall states (TPDWSs) in topological insulators, a signature of the topological phenomenon called bulk-edge correspondence. Here, we demonstrate theoretically and experimentally that the number of TPDWSs in a mechanical Su-Schrieffer-Heeger (SSH) model can be higher than the winding number depending on the strengths of beyond-nearest-neighbor interactions, revealing the breakdown of the winding number prediction. Alternatively, we resort to the Berry connection to accurately characterize the number and spatial features of TPDWSs in SSH systems, further confirmed by the Jackiw-Rebbi theory proving that the multiple TPDWSs correspond to the bulk Dirac cones. Our findings deepen the understanding of complex network dynamics and offer a generalized paradigm for precise TPDWS prediction in potential applications involving localized vibrations, such as drug delivery and quantum computing.
Limits of privacy amplification against non-signalling memory attacks
Creators: name: Arnon-Friedman, Rotem
name: Ta-Shma, Amnon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The task of privacy amplification, in which Alice holds some partially secret information with respect to an adversary Eve and wishes to distill it until it is completely secret, is known to be solvable almost optimally both in the classical and quantum world. Unfortunately, when considering an adversary who is only limited by non-signalling constraints such a statement cannot be made in general. We here prove that under the natural assumptions of time-ordered non-signalling system, which allow past subsystems to signal future subsystems (using the device's memory for example), super-polynomial privacy amplification by any hashing is impossible. This is in great relevance when considering practical device independent key distribution protocols which assume a super-quantum adversary.
description: 12 pages, 5 figures
Catherine Benoît, Les étangs de la Dombes au Moyen âge, XIIIe-XVe siècles. Approche ethno-historique d'un système agro-piscicole, 1992
Creators: name: Lohrmann, Dietrich
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 22, Nr. 1 (1995)
A partitioned model order reduction approach to rationalise computational expenses in multiscale fracture mechanics
Creators: name: Kerfriden, Pierre
name: Goury, Olivier
name: Rabczuk, Timon
name: Bordas, Stephane Pierre-Alain
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We propose in this paper an adaptive reduced order modelling technique based on domain partitioning for parametric problems of fracture. We show that coupling domain decomposition and projection-based model order reduction permits to focus the numerical effort where it is most needed: around the zones where damage propagates. No \textit{a priori} knowledge of the damage pattern is required, the extraction of the corresponding spatial regions being based solely on algebra. The efficiency of the proposed approach is demonstrated numerically with an example relevant to engineering fracture.
description: Submitted for publication in CMAME
title:  1924: Maciste pro o contro Mussolini? Corrispondenze tra divismo cinematografico e potere politico
Creators: name: Lotti  , Denis
Publisher: name: RomaTrE-Press
Year: 2019

description: Il film Maciste imperatore è distribuito nel 1924, anno cruciale per il rafforzamento del regime fascista. Per lanciare la medesima pellicola è pubblicata una vignetta satirica che mette in relazione diretta il protagonista, il forzuto Maciste (Bartolomeo Pagano), con il primo ministro Benito Mussolini. Perché fu possibile una simile associazione? Tenteremo perciò di dare una risposta plausibile e nel contempo proveremo a individuare elementi e indizi di contatto tra due realtà – quella cinematografica e quella politica italiane – all’epoca molto più intrecciate di quanto la storiografia contemporaneista sia solita considerare.
description: Cinema e identità italiana
Meta-optimized Contrastive Learning for Sequential Recommendation
Creators: name: Qin, Xiuyuan
name: Yuan, Huanhuan
name: Zhao, Pengpeng
name: Fang, Junhua
name: Zhuang, Fuzhen
name: Liu, Guanfeng
name: Sheng, Victor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or model augmentation for generating contrastive pairs to find a proper augmentation operation for different datasets, which makes the model hard to generalize. Additionally, since insufficient input data may lead the encoder to learn collapsed embeddings, these CL methods expect a relatively large number of training data (e.g., large batch size or memory bank) to contrast. However, not all contrastive pairs are always informative and discriminative enough for the training processing. Therefore, a more general CL-based recommendation model called Meta-optimized Contrastive Learning for sequential Recommendation (MCLRec) is proposed in this work. By applying both data augmentation and learnable model augmentation operations, this work innovates the standard CL framework by contrasting data and model augmented views for adaptively capturing the informative features hidden in stochastic data augmentation. Moreover, MCLRec utilizes a meta-learning manner to guide the updating of the model augmenters, which helps to improve the quality of contrastive pairs without enlarging the amount of input data. Finally, a contrastive regularization term is considered to encourage the augmentation model to generate more informative augmented views and avoid too similar contrastive pairs within the meta updating. The experimental results on commonly used datasets validate the effectiveness of MCLRec.
description: 11 Pages,8 figures,SIGIR2023
International Conference on Advances in Software Engineering (ASOFT 2020)
Creators: name: ASOFT
Publisher: name: Zenodo
Year: 2020
Subjects: security, privacy,Software security

description: Submit Your Articles..!!! International Conference on Advances in Software Engineering (ASOFT 2020)
 October 24-25, 2020, Sydney, Australia
 https://asoft2020.org/
 Important Dates
 Submission Deadline : August 01, 2020
 Contact Us
 Here's where you can reach us: asoft@asoft2020.org or asoftcon@yahoo.com
 submission link : https://asoft2020.org/submission/index.php
title:  «Ho servito il Re, il Duce e il Presidente della Repubblica». Vittorio De Sica anni Cinquanta
Creators: name: Masecchia  , Anna
Publisher: name: RomaTrE-Press
Year: 2019

description: A partire dal Secondo Dopoguerra, Vittorio De Sica ha decisamente incarnato un certo tipo di italianità. I ruoli interpretati dall’attore hanno prodotto una figura proteiforme, in bilico tra la costruzione di una nuova identità nazionale e la conferma di un carattere italiano dai tratti spesso discutibili. Alla fine degli anni Quaranta, De Sica, regista del neorealismo, si è fatto invece interprete consapevole di un cinema che voleva contribuire a “fare (nuovamente) gli italiani”: il maestro Perboni di Cuore (Duilio Coletti, 1948) oppure il Leo laico e progressista di Lo straniero di San Marino (Michal Waszyński, 1948) sono protagonisti di una Italia in ricostruzione, che vuole fare i conti sia con la Storia sia con il presente. Il 1952 è però, com’è noto, un anno di svolta. Da allora in poi, aitanti Carabinieri, Principi del foro, istrionici politicanti e padri immaturi e incapaci di guidare la “prima generazione” saranno materia per De Sica di nuove e significative prove attoriali.
description: Cinema e identità italiana
Memento: Facilitating Effortless, Efficient, and Reliable ML Experiments
Creators: name: Pullar-Strecker, Zac
name: Chang, Xinglong
name: Brydon, Liam
name: Ziogas, Ioannis
name: Dost, Katharina
name: Wicker, Jörg
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Running complex sets of machine learning experiments is challenging and time-consuming due to the lack of a unified framework. This leaves researchers forced to spend time implementing necessary features such as parallelization, caching, and checkpointing themselves instead of focussing on their project. To simplify the process, in this paper, we introduce Memento, a Python package that is designed to aid researchers and data scientists in the efficient management and execution of computationally intensive experiments. Memento has the capacity to streamline any experimental pipeline by providing a straightforward configuration matrix and the ability to concurrently run experiments across multiple threads. A demonstration of Memento is available at: https://wickerlab.org/publication/memento.
Cliona euryphylle Topsent 1888
Creators: name: Trejo, Alejandra
name: Carballo, José Luis
name: Segovia, Johanna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Clionaida
Clionaidae
Cliona
Cliona euryphylle

description: Cliona euryphylle Topsent, 1888
Figure 9, Table 9
Examined material. MUHNES-91-43 — El Arco (13°30’50.9”N, 89°47’33.1”W) depth 6 m, A. Trejo (20. VII.2018).
Description. Boring sponge of calcareous substrate, with a surface area of 5 x 3 cm. Color in life is bright yellow, it turns pale yellow when preserved in alcohol. It has oval oscular papillae of 2–4 mm in diameter slightly protruding from the surface (Figure 9A). The skeleton consists of tylostyles and spiraster. Tylostyles have a wellformed head, are straight and with a pointed termination, measuring between 149–354.8 µm. Spiraster are short, stout and with many thick spines (Figure 9B–C). The sponge was collected on calcareous algae at a depth of 6 m, and it was possible to observe it thanks to the oscular papillae that protruded from the surface.
Ecological notes. The species was found over calcareous algae surrounded by turf and coarse sand.
Distribution and previous records. The species was described by Topsent in 1888 from the Gulf of Mexico, later it was reported in New Zealand (Bergquist 1968; Kelly et al. 2009). For the Eastern Tropical Pacific, it has been reported from the states of Sonora, Sinaloa, Nayarit, Jalisco and Baja California Sur in México (Carballo et al. 2008), also from Costa Rica (Pacheco et al. 2018) and previously from Punta Amapala, El Salvador (Trejo & Segovia 2024). Here we extend its distribution to Los Cóbanos (Table 12).
Remarks. The specimen is similar to the description made by Carballo et al. (2008) and Pacheco et al. (2018) for C. euryphylle from the Mexican and Central America Pacific, with tylostyles and spirasters as the only spicules present. Another species with these characteristics is C. flavifodina Rützler, 1974, but its spirasters are much longer (up to 75 µm) and may have three to four undulations than in our sample which only has one.
description: Published as part of Trejo, Alejandra, Carballo, José Luis & Segovia, Johanna, 2025, New records and checklist of sponges from El Salvador (Eastern Tropical Pacific), pp. 99-125 in Zootaxa 5613 (1) on page 113, DOI: 10.11646/zootaxa.5613.1.4, http://zenodo.org/record/15216236
Visibility graphs of critical and off-critical time series for absorbing state phase transitions
Creators: name: Moraes, Juliane T.
name: Ferreira, Silvio C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: It is possible to investigate emergence in many real systems using time-ordered data. However, classical time series analysis is usually conditioned by data accuracy and quantity. A modern method is to map time series onto graphs and study these structures using the toolbox available in complex network analysis. An important practical problem to investigate the criticality in experimental systems is to determine whether an observed time series is associated with a critical regime or not. We contribute to this problem by investigating the mapping called visibility graph (VG) of a time series generated in dynamical processes with absorbing-state phase transitions. Analyzing degree correlation patterns of the VGs, we are able to distinguish between critical and off-critical regimes. One central hallmark is an asymptotic disassortative correlation on the degree for series near the critical regime in contrast with a pure assortative correlation observed for noncritical dynamics. We are also able to distinguish between continuous (critical) and discontinuous (noncritical) absorbing state phase transitions, the second of which is commonly involved in catastrophic phenomena. The determination of critical behavior converges very quickly in higher dimensions, where many complex system dynamics are relevant.
description: 9 pages, 9 figures
title: Characterization and modulation of CCR6/CCL20-mediated
immunosurveillance in malignant melanoma
Creators: name: Martin-Garcia, Diego
Publisher: name: Heidelberg University Library
Year: 2019

description: Chemokine ligand 20 (CCL20) expressed in the epidermis is a potent impetus for the recruitment of subsets of DCs, B-cells and memory T-cells expressing its exclusive receptor chemokine receptor 6 (CCR6) into the skin. CCL20 and a corresponding CCR6-expressing immune cell infiltrate have been detected in chronic inflammatory skin diseases and several malignancies, including melanoma. Yet, the functional contribution of the CCR6/CCL20 axis for the immune control of melanoma remains controversial. The characterization of CCR6-guided immune cell subsets and their functional contribution for the immune control of melanoma comprises the main focus of this project. We evaluated the homeostatic and inducible secretion of CCL20 by different murine and human melanoma cell lines by ELISA. Both murine (B16, Ret) and human (A375, C32) melanoma cell lines are capable of up-regulating CCL20 secretion upon stimulation with pro-inflammatory cytokines in vitro . In order to determine the functional relevance of CCR6 on local tumor growth, B16/F1 melanoma cells retrovirally transduced with a vector that constantly overexpresses CCL20 (B16-CCL20) were injected subcutaneously in C57BL/6 wt mice and congenic CCR6-knockout (CCR6-/-) mice. While animals in both groups developed local tumors, we observed a significantly reduced tumor growth in CCR6-/- mice. By contrast, Wt and CCR6-/- control groups did not display differences in tumor growth rate. Our results suggest that CCL20 interactions in the microenvironment of cutaneous melanoma may be an essential factor for local tumor growth, although the precise mechanisms require further investigation.
Auszug aus dem Geschäftsberichte des Provinzial-Museums 1905/06.
Creators: name: Reuß, K.
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2019

description: -
description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 6 (1907): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder
Deliverable 1.6 Beneficiaries Dataset - 1st Call
Creators: name: Bright Development Studio, S.A.
Publisher: name: Zenodo
Year: 2020
Subjects: blockchain
startups
end-users
fintech
ict
retail
beneficiaries
dataset
open call 1

description: This report compiles the Open Dataset containing the list of beneficiaries, project description and funds of BlockStart's open call #1 (Ideation Kick-off, Prototype and Pilot stages), which took place from March until October 2020. All profiles of the 20 DLT Developers who participated in Ideation Kick-off (10 of them also participated in Prototype stage, and 5 of them took part in Pilot stage) are included on this section of BlockStart’s website: www.blockstart.eu/our-startups/ All profiles of the 25 SME Adopters who participated in BlockStart open call #1 (10 in the Ideation Kick-off, and 18 took part in Pilot stage - with 3 participating in both the Ideation Kick-off and the Pilot stage: Eldro Technologie, Latitudo40 and Vawlt) are included on this section of BlockStart’s website: www.blockstart.eu/our-adopters/
title: Geschlechtliche und sexuelle Vielfalt in Thüringer Biologiebüchern: eine diskriminierungssensible Schulbuchanalyse
Creators: name: Gläßer, Dorothea
Publisher: name: Friedrich-Schiller-Universität Jena
Year: 2019
Subjects: subject: Diskriminierung
subject: Schulbuch
subject: Schulbuchanalyse
subject: Sexualerziehung
subject: Vielfalt
subject: Inhaltsanalyse
subject: Thüringen
subject: LSBTI, Geschlechterkonstruktionen, Geschlechter, Heteronormativität
subject: 150

description: In dieser Schulbuchanalyse wurden Thüringer Biologiebücher für die achte Klasse in Hinblick auf Konstruktionen von Geschlecht und Sexualität sowie heterosexistische Diskriminierungsformen untersucht. Dabei wurde angenommen, dass sexuelle Vielfalt präsenter als geschlechtliche Vielfalt sei, eine Thematisierung jedoch vorrangig aus einer Außenperspektive auf LSBTI erfolge. Aus zehn aktuell in Thüringen zugelassenen Biologiebüchern wurden Kapitel zu Sexualaufklärung exzerpiert und einer qualitativen Inhaltsanalyse nach Mayring (2010) unterzogen. Dafür wurden zwei separate Kategoriensysteme erstellt, deren Reliabilität in einer Zweitkodierung überprüft wurde. Anhand des ersten Kategoriensystems wurden Darstellungsformen differenziert (r = .85-.95). Für das inhaltliche Kategoriensystem wurden geschlossene Leitfragen zu geschlechtergerechter Sprache, Geschlechterkonstruktionen, Geschlechterrollen und stereotypen, geschlechtlicher Vielfalt, sexueller Vielfalt und LSBTI-Perspektiven erstellt (r =.61-.75). Eine Kodierung mit Ja/Nein/nicht interpretierbar erfolgte sowohl auf Darstellungs- als auch auf Kapitelebene. In neun Büchern wurde Homosexualität thematisiert, in sieben Bisexualität, in sechs Trans*-Identität und in fünf Büchern Inter*-Identität. Trotz einer zunehmenden Sichtbarmachung von LSBTI wurde deutlich, dass dies vornehmlich aus einer heteronormativen Perspektive heraus geschieht. In allen untersuchten Büchern fanden sich Beispiele für eine Verbesonderung oder indirekte Diskriminierung von LSBTI. In ergänzenden Interviews mit zwei Thüringer Lehrkräften wurde deutlich, dass Art und Umfang einer Thematisierung von geschlechtlicher/sexueller Diversität stark von der einzelnen Lehrkraft abhänge.
Spinorial Representation of Surfaces into 4-dimensional Space Forms
Creators: name: Bayard, Pierre
name: Lawn, Marie-Amelie
name: Roth, Julien
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C27, 53C40

description: In this paper we give a geometrically invariant spinorial representation of surfaces in four-dimensional space forms. In the Euclidean space, we obtain a representation formula which generalizes the Weierstrass representation formula of minimal surfaces. We also obtain as particular cases the spinorial characterizations of surfaces in $\R^3$ and in $S^3$ given by T. Friedrich and by B. Morel
description: 21 pages
title:  Divismo e mélo secondo Michelangelo Antonioni
Creators: name: Busni , Simona
Publisher: name: RomaTrE-Press
Year: 2019

description: Il saggio si propone di analizzare il fenomeno del divismo popolare degli anni Cinquanta partendo da Michelangelo Antonioni, con particolare riferimento alla primissima fase del suo cinema e ai personaggi femminili che popolano quei film, rientranti nel filone del ‘mélo modernista’. In che modo lo sguardo di Antonioni si rapporta agli stilemi di un melodramma in forma ‘rigenerata’ e alle peculiarità ontologiche di una tipologia divismo particolarmente influenzata dai mutamenti dell’identità femminile italiana?
description: Cinema e identità italiana
On the generation of ultra-bright and low energy spread electron beams in laser wakefield acceleration in a uniform plasma
Creators: name: Xu, Xinlu
name: Dalichaouch, Thamine N.
name: Liu, Jiaxin
name: Ma, Qianyi
name: Pierce, Jacob
name: Miller, Kyle
name: Yan, Xueqing
name: Mori, Warren B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The quality of electron beams produced from plasma-based accelerators, i.e., normalized brightness and energy spread, has made transformative progress in the past several decades in both simulation and experiment. Recently, full-scale particle-in-cell (PIC) simulations have shown that electron beams with unprecedented brightness ($10^{20}\sim10^{21}~\mathrm{A}/\mathrm{m}^2/\mathrm{rad}^2$) and $0.1\sim 1$ MeV energy spread can be produced through controlled injection in a slowly expanding bubble that arises when a particle beam or laser pulse propagates in density gradient, or when a particle beam self-focuses in uniform plasma or has a superluminal flying focus. However, in previous simulations of work on self-injection triggered by an evolving laser driver in a uniform plasma, the resulting beams did not exhibit comparable brightnesses and energy spreads. Here, we demonstrate through the use of large-scale high-fidelity PIC simulations that a slowly expanding bubble driven by a laser pulse in a uniform plasma can indeed produce self-injected electron beams with similar brightnesses and energy spreads as for an evolving bubble driven by an electron beam driver. We consider laser spot sizes roughly equal to the matched spot sizes in a uniform plasma and find that the evolution of the bubble occurs naturally through the evolution of the laser. The effects of the electron beam quality on the choice of physical as well as numerical parameters, e.g. grid sizes and field solvers used in the PIC simulations are presented. It is found that this original and simplest injection scheme can produce electron beams with beam quality exceeding that of the more recent concepts.
Scalar Decay into Gravitinos in the Presence of D-term SUSY Breaking
Creators: name: Endo, Motoi
name: Hamaguchi, Koichi
name: Terada, Takahiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Scalar decay into gravitinos is studied in the presence of D-term supersymmetry (SUSY) breaking. The gravitinos produced by the decay of coherent oscillations of scalar fields, such as moduli and inflatons, cause cosmological problems. We show the general formula for the partial decay rate of the scalar into two gravitinos. Applying it to a concrete model of D-term SUSY breaking, we find that D-term SUSY breaking can suppress gravitino production.
description: 23 pages, 1 table, 3 figures; minor changes for version 2
Flavor Oscillations in Core-Collapse Supernovae
Creators: name: Balantekin, A. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Core collapse supernovae are unique laboratories to study many aspects of neutrino physics. The vicinity of the proto-neutron star in a core-collapse supernova is characterized by large matter and neutrino densities. A salient feature of this region is the impact of neutrino-neutrino interactions. Properties of the ensuing non-linear many-neutrino system are examined with a particular emphasis on its collective behavior and its symmetries. The impact of neutrino properties and interactions on the r-process nucleosynthesis that may take place in the supernova environment is discussed.
description: Talk at Neutrino 2012, Kyoto, Japan, June 3-9, 2012. 7 pages, one figure
Mini-quenching of $z=4-8$ galaxies by bursty star formation
Creators: name: Dome, Tibor
name: Tacchella, Sandro
name: Fialkov, Anastasia
name: Ceverino, Daniel
name: Dekel, Avishai
name: Ginzburg, Omri
name: Lapiner, Sharon
name: Looser, Tobias J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The recent reported discovery of a low-mass $z=5.2$ and an intermediate-mass $z=7.3$ quenched galaxy with JWST/NIRSpec is the first evidence of halted star formation above $z\approx 5$. Here we show how bursty star formation at $z=4-8$ gives rise to temporarily quenched, or mini-quenched galaxies in the mass range $M_{\star} = 10^7-10^9 \ M_{\odot}$ using four models of galaxy formation: the periodic box simulation IllustrisTNG, the zoom-in simulations VELA and FirstLight and an empirical halo model. The main causes for mini-quenching are stellar feedback, lack of gas accretion onto galaxies and galaxy-galaxy interactions. The abundance of (mini-)quenched galaxies agrees across the models: the population first appears below $z\approx 8$, after which their proportion increases with cosmic time, from $\sim 0.5-1.0$% at $z=7$ to $\sim 2-4$% at $z=4$, corresponding to comoving number densities of $\sim 10^{-5}$ Mpc$^{-3}$ and $\sim 10^{-3}$ Mpc$^{-3}$, respectively. These numbers are consistent with star formation rate duty cycles inferred for VELA and FirstLight galaxies. Their star formation histories (SFHs) suggest that mini-quenching at $z=4-8$ is short-lived with a duration of $\sim 20-40$ Myr, which is close to the free-fall timescale of the inner halo. However, mock spectral energy distributions of mini-quenched galaxies in IllustrisTNG and VELA do not match JADES-GS-z7-01-QU photometry, unless their SFHs are artificially altered to be more bursty on timescales of $\sim 40$ Myr. Studying mini-quenched galaxies might aid in calibrating sub-grid models governing galaxy formation, as these may not generate sufficient burstiness at high redshift to explain the SFH inferred for JADES-GS-z7-01-QU.
description: 13 pages, 5 figures, 5 tables
Topological order: from long-range entangled quantum matter to an unification of light and electrons
Creators: name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In primary school, we were told that there are four states of matter: solid, liquid, gas, and plasma. In college, we learned that there are much more than four states of matter. For example, there are ferromagnetic states as revealed by the phenomenon of magnetization and superfluid states as defined by the phenomenon of zero-viscosity. The various phases in our colorful world are so rich that it is amazing that they can be understood systematically by the symmetry breaking theory of Landau. In this paper, we will review the progress in last 20 -- 30 years, during which we discovered that there are even more interesting phases that are beyond Landau symmetry breaking theory. We discuss new "topological" phenomena, such as topological degeneracy, that reveal the existence of those new phases - topologically ordered phases. Just like zero-viscosity defines the superfluid order, the new "topological" phenomena define the topological order at macroscopic level. As a new type of order, topological order requires a new mathematical frame work, such as fusion category and group cohomology, to describe it. More recently, we find that, at microscopical level, topological order is due to long-range quantum entanglements, just like fermion superfluid is due to fermion-pair condensation. Long-range quantum entanglements lead to many amazing emergent phenomena, such as fractional quantum numbers, fractional/non-Abelian statistics, and perfect conducting boundary channels. Long-range quantum entanglements can even provide a unified origin of light and electrons (or more generally, gauge interactions and Fermi statistics): light waves (gauge fields) are fluctuations of long-range entanglements, and electrons (fermions) are defects of long-range entanglements.
description: A gentle review of topological order. 43 pages 22 figures
Physics lab courses under digital transformation: A tri-national survey among university lab instructors about the role of new digital technologies and learning objectives
Creators: name: Lahme, Simon Zacharias
name: Klein, Pascal
name: Lehtinen, Antti
name: Müller, Andreas
name: Pirinen, Pekka
name: Rončević, Lucija
name: Sušac, Ana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Physics lab courses permanently undergo transformations, in recent times especially to adapt to the emergence of new digital technologies and the Covid-19 pandemic in which digital technologies facilitated distance learning. Since these transformations often occur within individual institutions, it is useful to get an overview of these developments by capturing the status quo of digital technologies and the related acquisition of digital competencies in physics lab courses. Thus, we conducted a survey among physics lab instructors (N=79) at German, Finnish, and Croatian universities. The findings reveal that lab instructors already use a variety of digital technologies and that the pandemic particularly boosted the use of smartphones/tablets, simulations, and digital tools for communication/collaboration/organization. The participants generally showed a positive attitude toward using digital technologies in physics lab courses, especially due to their potential for experiments and students' competence acquisition, motivational effects, and contemporaneity. Acquiring digital competencies is rated as less important than established learning objectives, however, collecting and processing data with digital tools was rated as an important competency that students should acquire. The instructors perceived open forms of labwork and particular digital technologies for specific learning objectives (e.g., microcontrollers for experimental skills) as useful for reaching their learning objectives. Our survey contributes to the reflection of what impact the emergence of digital technologies in our society and the Covid-19 pandemic had on physics lab courses and reveals first indications for the future transformation of hands-on university physics education.
description: 23 pages, 8 figures, and 7 tables; minor improvements based on the review, newly added Tab. 7 and Fig. 8, questionnaire excluded from the appendix as it will be published as supplemental material
Frustration-induced inherent instability and growth oscillations in pollen tubes
Creators: name: Pietruszka, Mariusz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: In a seed plant a pollen tube is a vessel that transports male gamete cells to an ovule to achieve fertilization. It consists of one elongated cell, which exhibits growth oscillations, until it bursts completing its function. Up till now, the mechanism behind the periodic character of the growth has not been fully understood. An attempt to understand these oscillations lead us to an attractive scenario: We show that the mechanism of pressure-induced symmetry frustration occuring in the wall at the perimeter of cylindrical and approximately hemispherical parts of a growing pollen cell, together with the addition of cell wall material, suffices to release and sustain mechanical self-oscillations and cell extension in pollen tubes. At the transition zone where symmetry frustration occurs and one cannot distinguish either of the involved symmetries, a kind of 'entangled state' appears where either single or both symmetry(ies) can be realized by the system. We anticipate that testifiable predictions made by the model may deliver, after calibration, a new tool to estimate turgor pressure from oscillation period of the growing cell. Since the mechanical principles apply to all turgor regulated walled cells including those of plant, fungal and bacterial origin, the relevance of this work is not limited to the case of the pollen tube.
description: 35 pages, 7 figures
Stretched exponentials and tensionless glass in the plaquette Ising model
Creators: name: Lipowski, Adam
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using Monte Carlo simulations we show that the autocorrelation function $C(t)$ in the d=3 Ising model with a plaquette interaction has a stretched-exponential decay in a supercooled liquid phase. Such a decay characterizes also some ground-state probability distributions obtained from the numerically exact counting of up to 10^450 configurations. A related model with a strongly degenerate ground state but lacking glassy features does not exhibit such a decay. Althoug the stretched exponential decay of C(t) in the three-dimensional supercooled liquid is inconsistent with the droplet model, its modification that considers tensionless droplets might explain such a decay. An indication that tensionless droplets might play some role comes from the analysis of low-temperature domains that compose the glassy state. It shows that the energy of a domain of size l scales as l^1.15, hence these domains are indeed tensionless .
description: extended version, Phys.Rev. E (accepted)
Deliverable 1.7 Beneficiaries Dataset - 2nd Call
Creators: name: Bright Development Studio, S.A.
Publisher: name: Zenodo
Year: 2021
Subjects: blockchain
startups
end-users
fintech
ict
retail
beneficiaries
dataset
open call 2

description: This report compiles the Open Dataset containing the list of beneficiaries, project description and funds of BlockStart's open call #2 (Ideation Kick-off, Prototype and Pilot stages), which took place from November 2020 until June 2021. All profiles of the 20 DLT Developers who participated in Ideation Kick-off (10 of them also participated in Prototype stage, and 5 of them took part in Pilot stage) are included on this section of BlockStart’s website: www.blockstart.eu/our-startups/ All profiles of the 20 SME Adopters who participated in BlockStart open call #2 (10 in the Ideation Kickoff, and 16 took part in Pilot stage - with 6 participating in both the Ideation Kick-off and the Pilot stage: Azzur Portugal, B4Bi, BioDAC, EmergencyHelp, Innova Solutions, Plastic Free Certification) are included on this section of BlockStart’s website: www.blockstart.eu/our-adopters/
Serfdom as a Category in Historical Analysis
Creators: name: Jha, Vishwa Mohan
Publisher: name: Zenodo
Year: 2011
Subjects: serfdom

description: Vishwa Mohan Jha, "Serfdom as a Category in Historical Analysis," Radha Krishna Choudhary Memorial Lecture, Mithila ltihas Sansthan, Darbhanga, Second Biennial National Conference, April 2-3, 2011.
A novel evaluation framework for energy losses in low voltage distribution grids
Creators: name: Ma, Chenije
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: system efficiency
subject: energy losses
subject: distributed generation
subject: low voltage grids
subject: machine learning
subject: 600
subject: Erneuerbare Energien
subject: Niederspannungsnetz
subject: Energieeffizienz
subject: Energieverlust
subject: Dezentrale Elektrizitätserzeugung
subject: Maschinelles Lernen

description: Zugleich: Dissertation, Universität Kassel, 2020