cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tunable Coulomb blockade in nanostructured graphene
Creators: name: Stampfer, C.
name: Guettinger, J.
name: Molitor, F.
name: Graf, D.
name: Ihn, T.
name: Ensslin, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on Coulomb blockade and Coulomb diamond measurements on an etched, tunable single-layer graphene quantum dot. The device consisting of a graphene island connected via two narrow graphene constrictions is fully tunable by three lateral graphene gates. Coulomb blockade resonances are observed and from Coulomb diamond measurements a charging energy of ~3.5 meV is extracted. For increasing temperatures we detect a peak broadening and a transmission increase of the nanostructured graphene barriers.
Probing Secret Interactions of Astrophysical Neutrinos in the High-Statistics Era
Creators: name: Esteban, Ivan
name: Pandey, Sujata
name: Brdar, Vedran
name: Beacom, John F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Do neutrinos have sizable self-interactions? They might. Laboratory constraints are weak, so strong effects are possible in astrophysical environments and the early universe. Observations with neutrino telescopes can provide an independent probe of neutrino self ("secret") interactions, as the sources are distant and the cosmic neutrino background intervenes. We define a roadmap for making decisive progress on testing secret neutrino interactions governed by a light mediator. This progress will be enabled by IceCube-Gen2 observations of high-energy astrophysical neutrinos. Critical to this is our comprehensive treatment of the theory, taking into account previously neglected or overly approximated effects, as well as including realistic detection physics. We show that IceCube-Gen2 can realize the full potential of neutrino astronomy for testing neutrino self-interactions, being sensitive to cosmologically relevant interaction models. To facilitate forthcoming studies, we release nuSIProp, a code that can also be used to study neutrino self-interactions from a variety of sources.
description: 10 pages + Appendix. Code available at https://github.com/ivan-esteban-phys/nuSIprop . Minor clarifications added, matches version accepted by Phys. Rev. D
Condaminea macrophylla Poeppig 1845
Creators: name: Delprete, Piero G.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Condaminea
Condaminea macrophylla

description: Condaminea macrophylla Poeppig (1845: 30).
Type:— PERU. Loreto, Prov. Maynas, near Yurimaguas, May 1830 (fl), E.F. Poeppig 2463 (lectotype W [W0049016], designated by Delprete (1999: 116); photos at A, F, MO, NY, VEN; isolectotype fragment at F). Image of the W lectotype available at: https:// herbarium.univie.ac.at/database/detail.php?ID=418725
description: Published as part of Delprete, Piero G., 2020, A new revision of Capirona (Rubiaceae, Ixoroideae, Condamineeae), with a new combination and additional notes on typification of the names involved, pp. 101-106 in Phytotaxa 443 (1) on page 102, DOI: 10.11646/phytotaxa.443.1.9, http://zenodo.org/record/13878321
Stephan Wolting, Bretter, die Kulturkulissen markierten. Das Danziger Theater am Kohlenmarkt, die Zoppoter Waldoper und andere Theaterinstitutionen im Danziger Kulturkosmos zur Zeit der Freien Stadt und in den Jahren des Zweiten Weltkriegs
Creators: name: Loew, Peter Oliver
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
A capacitive displacement system for studying the piezoelectric strain and its temperature variation
Creators: name: Fu, Desheng
name: Kakihara, Eiki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A capacitive displacement system was constructed to measure the electric-field-induced piezoelectric strain in the simple form of either a bulk or thin film. The system can determine an AC displacement of 2 pm precisely by using a lock-in detection, and can measure the large displacement within a range of $\pm$ 25 $μ$m with a sub-nanometer resolution. The system can also be used to measure the variation in strain within a temperature range of 210 - 450 K, allowing the evaluation of the temperature coefficient of a piezoelectric constant and the studies on the effects of a phase transition on the piezoelectric response. Experimental results on quartz, PZT ceramics and thin films, and BaTiO$_3$ confirm the capabilities of the developed system.
description: 11 pages, 8 figures
Pressure-energy correlations in liquids. I. Results from computer simulations
Creators: name: Bailey, Nicholas P.
name: Pedersen, Ulf R.
name: Gnan, Nicoletta
name: Schrøder, Thomas B.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that a number of model liquids at fixed volume exhibit strong correlations between equilibrium fluctuations of the configurational parts of (instantaneous) pressure and energy. We present detailed results for thirteen systems, showing in which systems these correlations are significant. These include Lennard-Jones liquids (both single- and two-component) and several other simple liquids, but not hydrogen-bonding liquids like methanol and water, nor the Dzugutov liquid which has significant contributions to pressure at the second nearest neighbor distance. The pressure-energy correlations, which for the Lennard-Jones case are shown to also be present in the crystal and glass phases, reflect an effective inverse power-law potential dominating fluctuations, even at zero and slightly negative pressure. An exception to the inverse-power law explanation is a liquid with hard-sphere repulsion and a square-well attractive part, where a strong correlation is observed, but only after time-averaging. The companion paper [arXiv:0807.0551] gives a thorough analysis of the correlations, with a focus on the Lennard-Jones liquid, and a discussion of some experimental and theoretical consequences.
description: Some changes corresponding to those made in proof of the accepted article
Tomasz Jasiński, Najstarsze kroniki i roczniki krzyżackie dotyczące Prus
Creators: name: Arnold, Udo
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
ConsisRec: Enhancing GNN for Social Recommendation via Consistent Neighbor Aggregation
Creators: name: Yang, Liangwei
name: Liu, Zhiwei
name: Dou, Yingtong
name: Ma, Jing
name: Yu, Philip S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Social recommendation aims to fuse social links with user-item interactions to alleviate the cold-start problem for rating prediction. Recent developments of Graph Neural Networks (GNNs) motivate endeavors to design GNN-based social recommendation frameworks to aggregate both social and user-item interaction information simultaneously. However, most existing methods neglect the social inconsistency problem, which intuitively suggests that social links are not necessarily consistent with the rating prediction process. Social inconsistency can be observed from both context-level and relation-level. Therefore, we intend to empower the GNN model with the ability to tackle the social inconsistency problem. We propose to sample consistent neighbors by relating sampling probability with consistency scores between neighbors. Besides, we employ the relation attention mechanism to assign consistent relations with high importance factors for aggregation. Experiments on two real-world datasets verify the model effectiveness.
Secure Nested Codes for Type II Wiretap Channels
Creators: name: Liu, Ruoheng
name: Liang, Yingbin
name: Poor, H. Vincent
name: Spasojevic, Predrag
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper considers the problem of secure coding design for a type II wiretap channel, where the main channel is noiseless and the eavesdropper channel is a general binary-input symmetric-output memoryless channel. The proposed secure error-correcting code has a nested code structure. Two secure nested coding schemes are studied for a type II Gaussian wiretap channel. The nesting is based on cosets of a good code sequence for the first scheme and on cosets of the dual of a good code sequence for the second scheme. In each case, the corresponding achievable rate-equivocation pair is derived based on the threshold behavior of good code sequences. The two secure coding schemes together establish an achievable rate-equivocation region, which almost covers the secrecy capacity-equivocation region in this case study. The proposed secure coding scheme is extended to a type II binary symmetric wiretap channel. A new achievable perfect secrecy rate, which improves upon the previously reported result by Thangaraj et al., is derived for this channel.
description: To appear in the Proceedings of the 2007 IEEE Information Theory Workshop on Frontiers in Coding Theory, Lake Tahoe, CA, September 2-6, 2007
Plans, schemas and affect
Creators: name: Snodgrass, Jacalyn D.
Publisher: name: University of British Columbia
Year: 2010

description: It has previously been suggested that a person's behavior in a place is mediated by his or her plans, and by his or her emotional response to the place; but the possible interactive effects of these influences have not been explored. Not only may a particular mood be the goal of a plan, but the process of planning may also produce changes in the planner's mood. It is here argued that a person's emotional response to a place is influenced by the extent of the alterations the place requires be made in his or her plans. It has been generally assumed that a person's liking of a place is decreased if it does not fit his or her plan, but the experiments reported here indicate that some incongruity may actually increase liking of a place if the person is able to modify the plans. Three experiments examined the effects of planning on two dimensions of mood--pleasure and arousal--and for liking of places. In experiment one, subjects who had just completed planning a route for completing a list of errands reported higher arousal than subjects who had judged the time required to complete the same errands. In experiment two, subjects who executed their own plan reported higher pleasure than subjects who executed a plan they had been given. In experiment three, subjects who had to alter their plans to accommodate the unexpected features of a place reported higher arousal and pleasure, and increased liking of the place over subjects who did not have to re-plan. These results suggest that the process of planning has measureable effects on mood and that these effects influence place-liking.
Quantum States of a Skyrmion in a 2D Antiferromagnet
Creators: name: Derras-Chouk, A.
name: Chudnovsky, E. M.
name: Garanin, D. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum states of a skyrmion in a 2D antiferromagnetic lattice are obtained by quantizing the scaling parameter of Belavin-Polyakov model. Skyrmion classical collapse due to violation of the translational invariance of the continuous spin-field model by the lattice is replaced in quantum mechanics by transitions between discrete energy levels of the skyrmion. Rates of transitions due to the emission of magnons are computed. Ways of detecting quantization of skyrmion states are discussed.
description: 7 PR pages, 5 figure captions, 2 tables
Historia Torunia. Bd. 3, T. 1: W czasach zaboru pruskiego (1793-1920)
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Jan Powierski, Prusowie, Mazowsze i sprowadzenie Krzyżaków do Polski
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Irradiation-induced confinement in a quasi-one-dimensional metal
Creators: name: Enayati-Rad, A.
name: Narduzzo, A.
name: Rullier-Albenque, F.
name: Horii, S.
name: Hussey, N. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The anisotropic resistivity of PrBa$_2$Cu$_4$O$_8$ has been measured as a function of electron irradiation fluence. Localization effects are observed for extremely small amounts of disorder corresponding to electron mean-free-paths of order 100 unit cells. Estimates of the localization corrections suggest that this anomalous localization threshold heralds a crossover to a ground state with pronounced one-dimensional character in which conduction electrons become confined to a small cluster of chains.
description: 4 pages, 4 figures
Historia Pomorza. Bd. 2: Do roku 1815. T. 3: Pomorze Zachodnie w latach 1648-1815
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
EXPLORAÇÃO ESPACIAL CONTEMPORÂNEA - EMPRESAS ESPACIAIS, INOVAÇÕES TECNOLÓGICAS E OS HORIZONTES CÓSMICOS DA HUMANIDADE
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: Exploração espacial
Empresas espaciais
Estações comerciais
Inovações tecnológicas
Propulsão espacial
Mapeamento cósmico
Exoplanetas habitáveis
Colonização de Marte
Sustentabilidade orbital
Futuro da exploração cósmica

description: Este artigo aborda a evolução dinâmica no campo da exploração espacial, com foco na ascensão das empresas espaciais, o papel central das estações comerciais, avanços na propulsão espacial e diversas facetas da exploração cósmica. Desde a transformação nas dinâmicas tradicionais entre governos e empresas até inovações tecnológicas como foguetes reutilizáveis e naves movidas a energia solar, a narrativa traça um panorama amplo da exploração espacial contemporânea. A análise abrange temas como mapeamento cósmico tridimensional, exploração de Titã, trajes espaciais avançados, busca por exoplanetas habitáveis e a desafiadora colonização de Marte. Além disso, destaca a importância da sustentabilidade orbital diante do aumento da atividade espacial. O artigo oferece uma visão abrangente sobre o estado atual e futuro da exploração espacial, delineando o papel crucial das empresas espaciais na construção de um novo horizonte cósmico para a humanidade.

 

This article addresses dynamic evolution in the field of space exploration, focusing on the rise of space companies, the central role of commercial stations, advances in space propulsion, and various facets of cosmic exploration. From the transformation in traditional dynamics between governments and companies to technological innovations such as reusable rockets and solar-powered spacecraft, the narrative paints a broad panorama of contemporary space exploration. The analysis covers topics such as three-dimensional cosmic mapping, exploration of Titan, advanced spacesuits, the search for habitable exoplanets and the challenging colonization of Mars. Furthermore, it highlights the importance of orbital sustainability in the face of increased space activity. The article offers a comprehensive overview of the current and future state of space exploration, outlining the crucial role of space companies in building a new cosmic horizon for humanity.
Pressure-energy correlations in liquids. II. Analysis and consequences
Creators: name: Bailey, Nicholas P.
name: Pedersen, Ulf R.
name: Gnan, Nicoletta
name: Schrøder, Thomas B.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an analysis and discuss consequences of the strong correlations of the configurational parts of pressure and energy in their equilibrium fluctuations at fixed volume reported for simulations of several liquids in the companion paper [arXiv:0807.0550]. The analysis concentrates specifically on the single-component Lennard-Jones system. We demonstrate that the potential may be replaced, at fixed volume, by an effective power-law, but not because only short distance encounters dominate the fluctuations. Indeed, contributions to the fluctuations are associated with the whole first peak of the RDF, as we demonstrate by an analysis of the spatially resolved covariance matrix. The reason the effective power-law works so well depends on going beyond single-pair effects and on the constraint of fixed volume. In particular, a better approximation to the potential includes a linear term, which contributes to the mean values of potential energy and virial, but not to their fluctuations. We also study the T=0 limit of the crystalline phase, where the correlation coefficient becomes very close, but not equal, to unity. We then consider four consequences of strong pressure-energy correlations: (1) analyzing experimental data for supercritical Ar we find 96% correlation; (2) we discuss the significance acquired by the correlations for viscous van der Waals liquids approaching the glass transition: For strongly correlating viscous liquids knowledge of just one of the eight frequency-dependent thermoviscoelastic response functions basically implies knowledge of them all; (3) we re-interpret aging simulations of ortho-terphenyl carried out by Mossa {\it et al.} in 2002, showing their conclusions follow from the strongly correlating property; and (4) we discuss correlations in model biomembranes.
description: Some changes corresponding to those made in the proof of the accepted article
Capirona decorticans Spruce 1859
Creators: name: Delprete, Piero G.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Capirona
Capirona decorticans

description: Capirona decorticans Spruce (1859: 200).
Type:— PERU. San Martín, Tarapoto, [October] 1855 – [May] 1856 (fl, fr), R. Spruce 4202 (first-step lectotype designated by Kirkbride (1985: 50), second-step lectotype K [K000111193, collected in October 1855], designated by Andersson & Taylor (1994: 4); isolectotypes BM [2 sheets, BM001008813, BM 001008814], BR [2 sheets, 000000549080, 000000549113], E [E00285411], F [2 sheets, No. 587480, No. 768236], G [2 sheets, G00389809, G00389810], K [4 sheets, K000111194, K000111195, K000111197, K000111198], LD [1210334], MA [MA220956 fragment], MPU [MPU 021284], NY [00131001], P [2 sheets, P01900504, P01900505], RB [No. RB 17354], TCD [TCD 0005637]).
description: Published as part of Delprete, Piero G., 2020, A new revision of Capirona (Rubiaceae, Ixoroideae, Condamineeae), with a new combination and additional notes on typification of the names involved, pp. 101-106 in Phytotaxa 443 (1) on page 102, DOI: 10.11646/phytotaxa.443.1.9, http://zenodo.org/record/13878321
Suppression of lithium depletion in young low-mass stars from fast rotation
Creators: name: Constantino, Thomas
name: Baraffe, Isabelle
name: Goffrey, Thomas
name: Pratt, Jane
name: Guillet, Thomas
name: Vlaykov, Dimitar
name: Amard, Louis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We compute rotating 1D stellar evolution models that include a modified temperature gradient in convection zones and criterion for convective instability inspired by rotating 3D hydrodynamical simulations performed with the MUSIC code. In those 3D simulations we found that convective properties strongly depend on the Solberg-Høiland criterion for stability. We therefore incorporated this into 1D stellar evolution models by replacing the usual Schwarzschild criterion for stability and also modifying the temperature gradient in convection zones. We computed a grid of 1D models between 0.55 and 1.2 stellar masses from the pre-main sequence to the end of main sequence in order to study the problem of lithium depletion in low-mass main sequence stars. This is an ideal test case because many of those stars are born as fast rotators and the rate of lithium depletion is very sensitive to the changes in the stellar structure. Additionally, observations show a correlation between slow rotation and lithium depletion, contrary to expectations from standard models of rotationally driven mixing. By suppressing convection, and therefore decreasing the temperature at the base of the convective envelope, lithium burning is strongly quenched in our rapidly rotating models to an extent sufficient to account for the lithium spread observed in young open clusters.
description: 11 pages, 5 figures; accepted for publication in Astronomy & Astrophysics
Fluctuation theorem for entropy production during effusion of a relativistic ideal gas
Creators: name: Cleuren, B.
name: Willaert, K.
name: Engel, A.
name: Broeck, C. Van den
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The probability distribution of the entropy production for the effusion of a relativistic ideal gas is calculated explicitly. This result is then extended to include particle and anti-particle pair production and annihilation. In both cases, the fluctuation theorem is verified.
description: 6 pages, no figures
"Nasza ojczyzna stała się dla nas obcym państwem ...". Niemcy w Polsce 1945-1950. Wybór dokumentów. Tom II: Polska Centralna. Województwo Śląskie.
Creators: name: Hofmann, Andreas R.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Prior-Guided Multi-View 3D Head Reconstruction
Creators: name: Wang, Xueying
name: Guo, Yudong
name: Yang, Zhongqi
name: Zhang, Juyong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recovery of a 3D head model including the complete face and hair regions is still a challenging problem in computer vision and graphics. In this paper, we consider this problem using only a few multi-view portrait images as input. Previous multi-view stereo methods that have been based, either on optimization strategies or deep learning techniques, suffer from low-frequency geometric structures such as unclear head structures and inaccurate reconstruction in hair regions. To tackle this problem, we propose a prior-guided implicit neural rendering network. Specifically, we model the head geometry with a learnable signed distance field (SDF) and optimize it via an implicit differentiable renderer with the guidance of some human head priors, including the facial prior knowledge, head semantic segmentation information and 2D hair orientation maps. The utilization of these priors can improve the reconstruction accuracy and robustness, leading to a high-quality integrated 3D head model. Extensive ablation studies and comparisons with state-of-the-art methods demonstrate that our method can generate high-fidelity 3D head geometries with the guidance of these priors.
description: 13 pages, 14 figures
Phantom thick brane in 5D bulk
Creators: name: Dzhunushaliev, Vladimir
name: Folomeev, Vladimir
name: Myrzakul, Shynaray
name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A model of a thick brane in 5D bulk supported by two phantom scalar fields is considered. The comparison with a thick brane supported by two usual scalar fields is carried out. The distinctions between a thick brane supported by one usual scalar field and our model have been pointed out.
description: unessential changes
Potential Feature of CombinedAB5-Type Metal Hydride Tank andPEMFC as a Safer System forHydrogen Fueling in Bangladesh
Creators: name: Salam, Md. Abdus
name: Islam, Md Tauhidul
name: Ahmed, Kawsar
name: Uddin, Md. Sahab
name: Habib, Md. Shehan
name: Abdullah, Bawadi
Publisher: name: figshare
Year: 2021
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 30601 Catalysis and Mechanisms of Reactions

description: Metal hydrides are very much reported as a potential safe option for high-density hydrogen
storage materials. A combined system of proton-exchange membrane hydrogen fuel cell
(PEMFC) and metal hydride (MH) tanks is designed to investigate their characteristics and
performances as hydrogen storage and stable power supply system. An AB5-type (LaCe)
Ni5 material containing three MH tanks is selected for investigation. Endothermic
dehydrogenation of metal hydride controls the hydrogen evolution rates during a
discharging period, which reduces the risk of accidents. The MH tank charged at a
20°C water bath sustains and supplies hydrogen for a longer time of 240 min. The
performances of the MH tank at a water bath of 20°C and 10-bar conditions
correspond to the optimum condition of hydrogen storage at the MH tank of Pragma
Industries. The performances of the combined system were investigated in different
working conditions. The system sustains and supplies hydrogen to PEMFC for 240,
160, 130, and 110 min for the working loads of 250, 500, 1,000, and 2,000 W,
accordingly. It is concluded that hydrogen consumption frequency increases for higher
load demand.
Multiple Access Channels with Generalized Feedback and Confidential Messages
Creators: name: Tang, Xiaojun
name: Liu, Ruoheng
name: Spasojevic, Predrag
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper considers the problem of secret communication over a multiple access channel with generalized feedback. Two trusted users send independent confidential messages to an intended receiver, in the presence of a passive eavesdropper. In this setting, an active cooperation between two trusted users is enabled through using channel feedback in order to improve the communication efficiency. Based on rate-splitting and decode-and-forward strategies, achievable secrecy rate regions are derived for both discrete memoryless and Gaussian channels. Results show that channel feedback improves the achievable secrecy rates.
description: To appear in the Proceedings of the 2007 IEEE Information Theory Workshop on Frontiers in Coding Theory, Lake Tahoe, CA, September 2-6, 2007
Stellar Obliquities in Long-period Exoplanet Systems (SOLES) I: The Spin-Orbit Alignment of K2-140 b
Creators: name: Rice, Malena
name: Wang, Songhu
name: Howard, Andrew W.
name: Isaacson, Howard
name: Dai, Fei
name: Wang, Xian-Yu
name: Beard, Corey
name: Behmard, Aida
name: Brinkman, Casey
name: Rubenzahl, Ryan A.
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Obliquity measurements for stars hosting relatively long-period giant planets with weak star-planet tidal interactions may play a key role in distinguishing between formation theories for shorter-period hot Jupiters. Few such obliquity measurements have been made to date due to the relatively small sample of known wide-orbiting, transiting Jovian-mass planets and the challenging nature of these targets, which tend to have long transit durations and orbit faint stars. We report a measurement of the Rossiter-McLaughlin effect across the transit of K2-140 b, a Jupiter-mass planet with period $P=6.57$ days orbiting a $V=12.6$ star. We find that K2-140 is an aligned system with projected spin-orbit angle $λ=0.5\pm9.7$ degrees, suggesting a dynamically cool formation history. This observation builds towards a population of tidally detached giant planet spin-orbit angles that will enable a direct comparison with the distribution of close-orbiting hot Jupiter orbital configurations, elucidating the prevalent formation mechanisms of each group.
description: Accepted for publication in AJ; 8 pages, 4 figures
Slawen und Deutsche im südlichen Ostseeraum vom 11. bis 16. Jahrhundert. Archäologische, historische und sprachwissenschaftliche Beispiele aus Schleswig-Holstein, Mecklenburg und Pommern
Creators: name: Lübke, Christian
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Monadelphanthus floridus H. Karsten 1860
Creators: name: Delprete, Piero G.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Monadelphanthus
Monadelphanthus floridus

description: Monadelphanthus floridus H. Karsten (1860: 67, tab. 33).
Type:— COLOMBIA. Meta, Llano de San Martín, s.d. (fr), H. Karsten s.n. (lectotype W-Rchb. [No. 1889-0124281], designated by Kirkbride (1985: 50); isolectotype LE n.v.).
description: Published as part of Delprete, Piero G., 2020, A new revision of Capirona (Rubiaceae, Ixoroideae, Condamineeae), with a new combination and additional notes on typification of the names involved, pp. 101-106 in Phytotaxa 443 (1) on page 103, DOI: 10.11646/phytotaxa.443.1.9, http://zenodo.org/record/13878321
Decomposition of Multiple Coverings into More Parts
Creators: name: Aloupis, G.
name: Cardinal, J.
name: Collette, S.
name: Langerman, S.
name: Orden, D.
name: Ramos, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: We prove that for every centrally symmetric convex polygon Q, there exists a constant alpha such that any alpha*k-fold covering of the plane by translates of Q can be decomposed into k coverings. This improves on a quadratic upper bound proved by Pach and Toth (SoCG'07). The question is motivated by a sensor network problem, in which a region has to be monitored by sensors with limited battery lifetime.
Dynamic plasmonic color generation enabled by functional materials
Creators: name: Neubrech, Frank
name: Duan, Xiaoyang
name: Liu, Na
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Displays are an indispensable medium to visually convey information in our daily life. Although conventional dye-based color displays have been rigorously advanced by world leading companies, critical issues still remain. For instance, color fading and wavelength-limited resolution restrict further developments. Plasmonic colors emerging from resonant interactions between light and metallic nanostructures can overcome these restrictions. With dynamic characteristics enabled by functional materials, dynamic plasmonic coloration may find a variety of applications in display technologies. In this review, we elucidate basic concepts for dynamic plasmonic color generation and highlight recent advances. In particular, we devote our review to a selection of dynamic controls endowed by functional materials, including magnesium, liquid crystals, electrochromic polymers, and phase change materials. We also discuss their performance in view of potential applications in current display technologies.
"Unsere Heimat ist uns ein fremdes Land geworden ...". Die Deutschen östlich von Oder und Neiße 1945-1950. Dokumente aus polnischen Archiven. Bd. 2: Zentralpolen. Wojewodschaft Schlesien (Oberschlesien)
Creators: name: Hofmann, Andreas R.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Wilm Hosenfeld, "Ich versuche jeden zu retten". Das Leben eines deutschen Offiziers in Briefen und Tagebüchern
Creators: name: Wiaderny, Bernard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Fermi Level Fluctuations, Reduced Effective Masses and Zeeman Effect during Quantum Oscillations in Nodal Line Semimetals
Creators: name: Kar, Satyaki
name: Saha, Anupam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We probe quantum oscillations in nodal line semimetals (NLSM) by considering a NLSM continuum model under strong magnetic field and report the characteristics of the Landau level spectra and the fluctuations in the Fermi level as the field in a direction perpendicular to the nodal plane is varied through. Based on the results on parallel magnetization, we demonstrate the growth of quantum oscillation with field strength as well as its constancy in period when plotted against 1/B. We find that the density of states which show series of peaks in succession, witness bifurcation of those peaks due to Zeeman effect. For field normal to nodal plane, such bifurcations are discernible only if the electron effective mass is considerably smaller than its free value, which usually happens in these systems. Though a reduced effective mass $m^*$ causes the Zeeman splitting to become small compared to Landau level spacing, experimental results indicate a manyfold increase in the Lande $g$ factor which again amplifies the Zeeman contribution. We also consider magnetic field in the nodal plane for which the density of state peaks do not repeat periodically with energy anymore. The spectra become more spread out and the Zeeman splittings become less prominent. We find the low energy topological regime, that appears with such in-plane field set up, to shrink further with reduced $m^*$ values. However, such topological regime can be stretched out in case there are smaller Fermi velocities for electrons in the direction normal to the nodal plane.
description: To appear in JPCM
An extremely wide and very low-mass pair with common proper motion. Is it representative of a nearby halo stream?
Creators: name: Scholz, R. -D.
name: Kharchenko, N. V.
name: Lodieu, N.
name: McCaughrean, M. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) We describe the discovery of an extremely wide pair of low-mass stars with a common large proper motion and discuss their possible membership in a Galactic halo stream crossing the Solar neighbourhood. (...) The late-type (M7) dwarf SSSPM J2003$-$4433 and the ultracool subdwarf SSSPM J1930$-$4311 (sdM7) sharing the same very large proper motion of about 860 mas/yr were found in the same sky region with an angular separation of about 6\degr. From the comparison with other high proper motion catalogues we have estimated the probability of a chance alignment of the two new large proper motions to be less than 0.3%. From the individually estimated spectroscopic distances of about $38^{+10}_{-7}$ pc and $72^{+21}_{-16}$ pc, respectively for the M7 dwarf and the sdM7 subdwarf, and in view of the accurate agreement in their large proper motions we assume a common distance of about 50 pc and a projected physical separation of about 5 pc. The mean heliocentric space velocity of the pair $(U,V,W)=(-232, -170, +74)$ km/s, based on the correctness of the preliminary radial velocity measurement for only one of the components and on the assumption of a common distance and velocity vector, is typical of the Galactic halo population. The large separation and the different metallicities of dwarfs and subdwarfs make a common formation scenario as a wide binary (later disrupted) improbable, although there remains some uncertainty in the spectroscopic classification scheme of ultracool dwarfs/subdwarfs so that a dissolved binary origin cannot be fully ruled out yet. It seems more likely that this wide pair is part of an old halo stream. (...)
description: 5 pages, 4 figures, accepted for publication in Astronomy and Astrophysics
$α$-cluster structures above double shell closures via double-folding potentials from chiral effective field theory
Creators: name: Bai, Dong
name: Ren, Zhongzhou
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: $α$-cluster structures above double shell closures are among the cornerstones for nuclear $α$-cluster physics. Semi-microscopic cluster models (SMCMs) are important theoretical models to study their properties. A crucial ingredient of SMCM is the effective potential between the alpha cluster and the doubly magic nucleus. We derive new double-folding potentials between $α$ clusters and doubly magic nuclei from soft local chiral nucleon-nucleon potentials given by chiral effective field theory ($χ$EFT) at the next-to-next-to-leading order. The $α$-cluster structures in ${}^{8}\text{Be}$, ${}^{20}\text{Ne}$, ${}^{44,52}\text{Ti}$, and ${}^{212}\text{Po}$ are explored to validate these new double-folding potentials. The $α$ decay of ${}^{104}\text{Te}$ is also studied in the light of recent experimental results. Our study shows that double-folding potentials from $χ$EFT are the new reliable effective potentials for the SMCM approach to $α$-cluster structures above double shell closures, with both conceptual and phenomenological merits.
description: 9 pages, 2 figures; accepted by Physical Review C
Achieving Zero Hunger goal: Food Security in Post COVID-19 Era in Bangladesh
Creators: name: Salam, Md. Abdus
name: Islam, Md Tauhidul
name: Ahmed, Kawsar
name: Uddin, Md. Sahab
name: Habib, Md. Shehan
Publisher: name: figshare
Year: 2021
Subjects: subject: 111201 Cancer Cell Biology
subject: FOS: Clinical medicine
subject: 111202 Cancer Diagnosis
subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: 111703 Care for Disabled
subject: FOS: Health sciences

description: Bangladesh has a commendable progress in achieving SDG goals, specially poverty alleviation
and hunger eradication. Since 2020, COVID-19 pandemic has imposed a great uncertainty in the
economy, food security throughout the whole world. To combat the contagiousness nature of this
pandemic, countries had to adopt general holidays or lock down for quite a long period. In this
pandemic, we had to face lock down to save lives. So, ensuring food security has become a great
challenge. In this paper, we have analyzed the achievements of Bangladesh to ensure food
security and reach Sustainable Development Goal (SDG) 2: Zero Hunger. We have discussed the
challenges and steps of government to achieve this goal and ensure food security in both normal
situation and pandemic situation. We have also recommended immediate and long-term steps to
be taken in achieving and sustaining food security in Post COVID-19 era so that we can achieve
our sustainable development goal of hunger eradication.
Vignysa Bouche 1970
Creators: name: Gérard, Sylvain
name: Marchán, Daniel Fernández
name: Navarro, Alejandro Martinez
name: Hedde, Mickaël
name: Decaëns, Thibaud
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Clitellata
Crassiclitellata
Hormogastridae
Vignysa

description: Genus Vignysa Bouché, 1970
TYPE SPECIES. — Lumbricus teres Dugès, 1828: 289.
DIAGNOSIS. — Small-to-medium-sized species without cutaneous pigmentation. Prostomium prolobous. Transversal furrows on segments I-II. Setae closely paired. Male pores in 15/16 with well-developed porophores. Spermathecal pores in 9/10, 10/11, simple. Nephridial pores aligned. Clitellum between XIV and XXIX (1/2 XXX). Two gizzards in VI-VII. Typhlosole lyre- or Y-shaped. Two pairs of spermathecae, disc-shaped or tubular. Two pairs of seminal vesicles in XI-XII. Nephridial bladders fish-hook shaped with caeca from the first segments.
Vignysa callasensis n. sp.
Vignysa teres
50 km
Vignysa vedovinii
INCLUDED SPECIES. — Vignysa teres (Dugès, 1828: 289); Vignysa vedovinii Rota, 1994: 27; Vignysa callasensis Gérard, Decaëns & Marchán, n. sp.
DIVERSITY AND DISTRIBUTION. — This genus currently comprises three species occurring in Southeastern France, from Montpellier (Hérault, Occitanie) to the north of Fréjus (Var, Occitanie), and from the Mediterranean Sea to the 44th north parallel (Fig. 8).
description: Published as part of Gérard, Sylvain, Marchán, Daniel Fernández, Navarro, Alejandro Martinez, Hedde, Mickaël & Decaëns, Thibaud, 2023, Resampling Bouché's historical localities reveals three new species and helps identifying a new genus of earthworms (Oligochaeta, Hormogastridae and Lumbricidae) in Southeastern France, pp. 749-768 in Zoosystema 45 (23) on pages 758-759, DOI: 10.5252/zoosystema2023v45a23, http://zenodo.org/record/10275978
Das Denkmal im nördlichen Ostmitteleuropa im 20. Jahrhundert. Politischer Kontext und nationale Funktion
Creators: name: Grabowski, Sabine
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Der Kampf um das Gedächtnis. Öffentliche Gedenktage in Mitteleuropa
Creators: name: Grabowski, Sabine
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Friedmann Thermodynamics and the Geometry of the Universe
Creators: name: Bayin, Selcuk S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a recent article we have introduced Friedmann thermodynamics, where certain geometric parameters in Friedmann models are treated like their thermodynamic counterparts (temperature, entropy, Gibbs potential etc.). This model has the advantage of allowing us to determine the geometry of the universe by thermodynamic stability arguments. In this article we review connections between thermodynamics, geometry and cosmology.
description: Key note speech delivered in the International Conference on Efficiency, Costs, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS'95 and ASME
What Makes Sound Event Localization and Detection Difficult? Insights from Error Analysis
Creators: name: Nguyen, Thi Ngoc Tho
name: Watcharasupat, Karn N.
name: Lee, Zhen Jian
name: Nguyen, Ngoc Khanh
name: Jones, Douglas L.
name: Gan, Woon Seng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Sound event localization and detection (SELD) is an emerging research topic that aims to unify the tasks of sound event detection and direction-of-arrival estimation. As a result, SELD inherits the challenges of both tasks, such as noise, reverberation, interference, polyphony, and non-stationarity of sound sources. Furthermore, SELD often faces an additional challenge of assigning correct correspondences between the detected sound classes and directions of arrival to multiple overlapping sound events. Previous studies have shown that unknown interferences in reverberant environments often cause major degradation in the performance of SELD systems. To further understand the challenges of the SELD task, we performed a detailed error analysis on two of our SELD systems, which both ranked second in the team category of DCASE SELD Challenge, one in 2020 and one in 2021. Experimental results indicate polyphony as the main challenge in SELD, due to the difficulty in detecting all sound events of interest. In addition, the SELD systems tend to make fewer errors for the polyphonic scenario that is dominant in the training set.
description: Accepted for the 6th Workshop on Detection and Classification of Acoustic Scenes and Events (DCASE), 2021
Capirona leiophloea Benoist 1921
Creators: name: Delprete, Piero G.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Capirona
Capirona leiophloea

description: Capirona leiophloea Benoist (1921: 367).
Type:— FRENCH GUIANA. Near Camp Godebert, before 20 December 1920 (fl buds), H. Wachenheim 215 (lectotype P [P00723568], designated by Kirkbride (1985: 50); isolectotypes F [No. 540841], K [K00017358]).
description: Published as part of Delprete, Piero G., 2020, A new revision of Capirona (Rubiaceae, Ixoroideae, Condamineeae), with a new combination and additional notes on typification of the names involved, pp. 101-106 in Phytotaxa 443 (1) on page 103, DOI: 10.11646/phytotaxa.443.1.9, http://zenodo.org/record/13878321
Two-Pulse Propagation in Media with Quantum-Mixed Ground States
Creators: name: Clader, B. D.
name: Eberly, J. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We examine fully coherent two-pulse propagation in a lambda-type medium, under two-photon resonance conditions and including inhomogeneous broadening. We examine both the effects of short pulse preparation and the effects of medium preparation. We contrast cases in which the two pulses have matched envelopes or not, and contrast cases in which ground state coherence is present or not. We find that an extended interpretation of the Area Theorem for single-pulse self-induced transparency (SIT) is able to unify two-pulse propagation scenarios, including some aspects of electromagnetically-induced transparency (EIT) and stimulated Raman scattering (SRS). We present numerical solutions of both three-level and adiabatically reduced two-level density matrix equations and Maxwell's equations, and show that many features of the solutions are quickly interpreted with the aid of analytic solutions that we also provide for restricted cases of pulse shapes and preparation of the medium. In the limit of large one-photon detuning, we show that the two-level equations commonly used are not reliable for pulse Areas in the 2$π$ range, which allows puzzling features of previous numerical work to be understood.
description: 28 pages, 7 figures. Replaced with version accepted in PRA
Simple and secure quantum key distribution with biphotons
Creators: name: Bregman, I.
name: Aharonov, D.
name: Ben-Or, M.
name: Eisenberg, H. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The best qubit one-way quantum key distribution (QKD) protocol can tolerate up to 14.1% in the error rate. It has been shown how this rate can be increased by using larger quantum systems. The polarization state of a biphoton can encode a three level quantum system - a qutrit. The realization of a QKD system with biphotons encounters several problems in generating, manipulating and detecting such photon states. We define those limitations and find within them a few protocols that perform almost as well as the ideal qutrit protocol. One advantage is that these protocols can be implemented with minor modifications into existing single photon systems. The security of one protocol is proved for the most general coherent attacks and the largest acceptable error rate for this protocol is found to be around 17.7%. This is the first time, to the best of our knowledge, that the security of qutrit QKD protocols is rigorously analyzed against general attacks.
description: 4 pages, 4 figures, calculation error corrected, new Fig. 4, 2 new Refs. and 2 omitted