cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Prompt-based Zero-shot Relation Extraction with Semantic Knowledge Augmentation
Creators: name: Gong, Jiaying
name: Eldardiry, Hoda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In relation triplet extraction (RTE), recognizing unseen relations for which there are no training instances is a challenging task. Efforts have been made to recognize unseen relations based on question-answering models or relation descriptions. However, these approaches miss the semantic information about connections between seen and unseen relations. In this paper, We propose a prompt-based model with semantic knowledge augmentation (ZS-SKA) to recognize unseen relations under the zero-shot setting. We present a new word-level analogy-based sentence translation rule and generate augmented instances with unseen relations from instances with seen relations using that new rule. We design prompts with weighted virtual label construction based on an external knowledge graph to integrate semantic knowledge information learned from seen relations. Instead of using the actual label sets in the prompt template, we construct weighted virtual label words. We learn the representations of both seen and unseen relations with augmented instances and prompts. We then calculate the distance between the generated representations using prototypical networks to predict unseen relations. Extensive experiments conducted on three public datasets FewRel, Wiki-ZSL, and NYT, show that ZS-SKA outperforms other methods under zero-shot setting. Results also demonstrate the effectiveness and robustness of ZS-SKA.
description: 14 pages, 5 figures
Projective measurements are sufficient for recycling nonlocality
Creators: name: Steffinlongo, Anna
name: Tavakoli, Armin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Unsharp measurements are widely seen as the key resource for recycling the nonlocality of an entangled state shared between several sequential observers. Contrasting this, we here show that nonlocality can be recycled using only standard projective measurements, without using quantum ancillas. Focusing on the CHSH inequality, we determine the optimal trade-off in the Bell parameters for a maximally entangled two-qubit state in the presence of shared classical randomness. We then find that non-maximally entangled states make possible larger sequential violations, which contrasts the standard CHSH scenario. Furthermore, we show that nonlocality can be recycled even when only using projective measurements and local randomness. We discuss the implications of our results for experimental implementations of sequential nonlocality.
description: Updated version. Typo corrected
SPT indices emerging from translation invariance in two dimensional quantum spin systems
Creators: name: Jappens, Tijl
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider SPT-phases with on-site $G$ (where $G$ is any finite group) symmetry for two-dimensional quantum spin systems. We then impose translation invariance in one direction and observe that on top of the $H^3(G,\mathbb{T})$-valued index constructed in \cite{ogata2021h3gmathbb}, an additional $H^2(G,\mathbb{T})$-valued index emerges. We also show that if we impose translation invariance in two directions, on top of the expected $H^3(G,\mathbb{T})\oplus H^2(G,\mathbb{T})\oplus H^2(G,\mathbb{T})$ valued index, an additional $H^1(G,\mathbb{T})$-valued index emerges.
Biphenyl-based liquid crystal precursors with alkanoate and hydroxyl group
Creators: name: Keon-Soo Jang
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: We synthesized a series of 4′-hydroxy-[1,1′-biphenyl]-4-yl alkanoate with a potentially reactive functional hydroxyl group as a LC precursor, which facilitates reaction with other chemical groups to tailor biphenyl-based liquid crystals (LCs) for specific applications. Several liquid crystalline materials were also synthesized based on these LC precursors to show high probability to generate various potential LCs. With increasing chain length, the melting point decreased and Rf (retardation factor: migration distance of substance ÷ migration distance of solvent front) of the synthesized LC precursor increased. This LC precursor series provides a useful first synthesis step to design tunable biphenyl/ester-based LCs.
Syntaktische Profile für Interpretationen jenseits der Textoberfläche
Creators: name: Andresen, Melanie
name: Begerow, Anke
name: Franken, Lina
name: Gaidys, Uta
name: Koch, Gertraud
name: Zinsmeister, Heike
Publisher: name: Zenodo
Year: 2020

description: Präsentation gehalten bei der DHd 2020 in Paderborn, Abstract:
 Melanie Andresen, Anke Begerow, Lina Franken, Uta Gaidys, Gertraud Koch, Heike Zinsmeister (2020): Syntaktische Profile für Interpretationen jenseits der Textoberfläche. DHd2020, Paderborn, Book of Abstracts. DOI: 10.5281/zenodo.3666690. S. 219–223.
title: Expansion of a family of phenanthridinium-based heterocyclic derivatives
Creators: name: Eadie, Roslyn
Publisher: name: University of Glasgow
Year: 2011
Subjects: subject: Heterocycles, Phenanthridinium, Derivatives

description: This thesis focuses on the expansion of a family of phenanthridine derivatives; 5-(2-aminoethyl)-phenanthridinium chlorides (AEPs), 2,3-dihydro-1H-imidazo[1,2-f]phenanthridiniums (DIPs) and 1,2,3,12b-tetrahydroimidazo[1,2-f]phenanthridines (TIPs), and their possible applications. AEPs and DIPs with extended alkyl chains were synthesised and investigated for indications of possible surfactant-like behaviour through the use of 1H NMR spectroscopy. Correlations between the shift in the water signal and the concentrations of the AEPs with an alkyl chain length of 11, 12 and 14 carbons in deutero-chloroform showed positive results for micelle formation. Preliminary studies of their use in inorganic-organic molecular systems as tube growth components were also performed. Incorporation of two crown ether moieties, 4-aminobenzo-18-crown-6 and trans-di(aminobenzo)-18-crown-6, into the frameworks was achieved. Complexation of potassium in the crown attachment of the TIP monomer was observed via 1H NMR and fluorescence spectroscopy. Structurally diverse primary aryl amines were used as reactants to gain further insight into their effect on the product isolated as a result of the steric and electronic effects from aryl substituents, neighbouring hydroxyls and pyridine nitrogen atoms. UV-vis and 1H NMR spectroscopy enabled analysis and reaction monitoring which revealed that excessively electron withdrawing groups and sterically hindered amines do not allow for isolation of the common TIP structure but enter into one of two pathways for the formation of the DIP and AEP structures. Finally, a range of TIPs and DIPs were synthesised which incorporate different functionalities, providing a platform for further derivitisation or use.
Impact of nuclear deformation on collective flow observables in relativistic U+U collisions
Creators: name: Magdy, Niseem
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A Multi-Phase Transport (AMPT) model is used to investigate the efficacy of several flow observables to constrain the initial-state deformation of the Uranium nuclei in U$+$U collisions at nucleon-nucleon center-of-mass energy $\sqrt{\textit{s}_{NN}}$ = 193 GeV. The multiparticle azimuthal cumulant method is used to investigate the sensitivity of (I) a set of quantities that are sensitive to both initial- and final-state effects as well as (II) a set of dimensionless quantities that are more sensitive to initial-state effects to the Uranium nuclei quadrupole shape deformation. We find that the combined use of the flow harmonics, flow fluctuations and correlations, linear and non-linear flow correlations to the quadrangular flow harmonic, and the correlations between elliptic flow and the mean-transverse momentum could serve to constrain the nuclear deformation of the Uranium nuclei. Therefore, a comprehensive set of measurements of such observables can provide a quantifying tool for the quadrupole shape deformation via data-model comparisons.
description: 9 pages and 4 figures
Multistream Gaze Estimation with Anatomical Eye Region Isolation by Synthetic to Real Transfer Learning
Creators: name: Mahmud, Zunayed
name: Hungler, Paul
name: Etemad, Ali
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel neural pipeline, MSGazeNet, that learns gaze representations by taking advantage of the eye anatomy information through a multistream framework. Our proposed solution comprises two components, first a network for isolating anatomical eye regions, and a second network for multistream gaze estimation. The eye region isolation is performed with a U-Net style network which we train using a synthetic dataset that contains eye region masks for the visible eyeball and the iris region. The synthetic dataset used in this stage is procured using the UnityEyes simulator, and consists of 80,000 eye images. Successive to training, the eye region isolation network is then transferred to the real domain for generating masks for the real-world eye images. In order to successfully make the transfer, we exploit domain randomization in the training process, which allows for the synthetic images to benefit from a larger variance with the help of augmentations that resemble artifacts. The generated eye region masks along with the raw eye images are then used together as a multistream input to our gaze estimation network, which consists of wide residual blocks. The output embeddings from these encoders are fused in the channel dimension before feeding into the gaze regression layers. We evaluate our framework on three gaze estimation datasets and achieve strong performances. Our method surpasses the state-of-the-art by 7.57% and 1.85% on two datasets, and obtains competitive results on the other. We also study the robustness of our method with respect to the noise in the data and demonstrate that our model is less sensitive to noisy data. Lastly, we perform a variety of experiments including ablation studies to evaluate the contribution of different components and design choices in our solution.
description: 15 pages, 7 figures, 14 tables. This work has been accepted to the IEEE Transactions on Artificial Intelligence $\copyright$ 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses
Dynamical quantum phase transitions from random matrix theory
Creators: name: Pérez-García, David
name: Santilli, Leonardo
name: Tierz, Miguel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We uncover a novel dynamical quantum phase transition, using random matrix theory and its associated notion of planar limit. We study it for the isotropic XY Heisenberg spin chain. For this, we probe its real-time dynamics through the Loschmidt echo. This leads to the study of a random matrix ensemble with a complex weight, whose analysis requires novel technical considerations, that we develop. We obtain three main results: 1) There is a third order phase transition at a rescaled critical time, that we determine. 2) The third order phase transition persists away from the thermodynamic limit. 3) For times below the critical value, the difference between the thermodynamic limit and a finite chain decreases exponentially with the system size. All these results depend in a rich manner on the parity of the number of flipped spins of the quantum state conforming the fidelity.
description: v2: 60 pages, 18 figures, published version
Mechanism and kinetics of the atmospheric degradation of 2-formylcinnamaldehyde with O3 and hydroxyl OH radicals – a theoretical study
Creators: name: D. Thangamani
name: R. Shankar
name: S. Vijayakumar
name: P. Kolandaivel
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: In the present investigation, the reaction mechanism and kinetics of 2-formylcinnamaldehyde (2-FC) with O3 and hydroxyl OH radicals were studied. The reaction of 2-FC with O3 radical are initiated by the formation of primary ozonide, whereas the reaction of 2-FC with the hydroxyl OH radical are initiated by two different ways: (1). H-atom abstraction by hydroxyl OH radical from the –CHO and –CH = CHCHO group of 2-FC (2). Hydroxyl OH addition to the –CH = CHCHO group to the ring-opened 2-FC. These reactions lead to the formation of an alkyl radical. The reaction pathways corresponding to the reactions between 2-FC with O3 and hydroxyl OH radicals have been analysed using density functionals of B3LYP and M06-2X level of methods with the 6-31+G(d,p) basis set. Single-point energy calculations for the most favourable reactive species are determined by B3LYP/6-311++G(d,p) and CCSD(T)/6-31+G(d,p) levels of theory. From the obtained results, the hydroxyl OH addition at C8 position of 2-FC are most favourable than the C9 position of 2-FC. The subsequent reactions of the alkyl radicals, formed from the hydroxyl OH addition at C8 position, are analysed in detail. The individual and overall rate constant for the most favourable reactions are calculated by canonical variational transition theory with small-curvature tunnelling corrections over the temperature range of 278–350 K. The calculated theoretical rate constants are in good agreement with the available experimental data. The Arrhenius plot of the rate constants with the temperature are fitted and the atmospheric lifetimes of the 2-FC with hydroxyl OH radical reaction in the troposphere calculate for the first time, which can be applied to the study on the atmospheric implications. The condensed Fukui function has been verified for the most favourable reaction sites. This study can be regarded as an attempt to investigate the O3-initiated and hydroxyl OH-initiated reaction mechanisms of 2-FC in the atmosphere.
Sasaki-Einstein 7-manifolds and Orlik's conjecture
Creators: name: Cuadros, Jaime
name: Lope, Joe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We calculate the homology groups of certain 2-connected 7-manifolds admitting quasi-regular Sasaki-Einstein metrics. These manifolds are links that arise as Thom-Sebastiani sums of chain type singularities and cycle type singularities. Among these links, we found 52 new examples of Sasaki-Einstein rational homology 7-spheres and 124 new examples of Sasaki-Einstein 2-connected 7-manifolds homeomorphic to connected sums of $S^{3} \times S^{4}.$ Furthermore, we found that manifolds of the form $k \#\left(S^{3} \times S^{4}\right)$ admit Sasaki-Einstein metrics for 22 different values of $k.$ We also describe the diffeomorphism type of certain families of homotopy 9-spheres admitting positive Ricci curvature. These manifolds are branched covers of $S^{11}$ branched over Sasaki-Einstein rational homology 7-spheres.
description: We correct some minor typos and add a subsection updating results of Boyer et al. on the diffeomorphism type of homotopy 9-spheres admitting positive Ricci curvature. These manifolds are branched covers of $S^{11}$ branched over Sasaki-Einstein rational homology 7-spheres
Anisotropic linear and nonlinear charge-spin conversion in topological semimetal SrIrO3
Creators: name: Lao, Bin
name: Liu, Peitao
name: Zheng, Xuan
name: Lu, Zengxing
name: Li, Sheng
name: Zhao, Kenan
name: Gong, Liguang
name: Tang, Tao
name: Wu, Keyi
name: Shi, You-guo
name: Sun, Yan
name: Chen, Xing-Qiu
name: Li, Run-Wei
name: Wang, Zhiming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Over the past decade, utilizing spin currents in the linear response of electric field to manipulate magnetization states via spin-orbit torques (SOTs) is one of the core concepts for realizing a multitude of spintronic devices. Besides the linear regime, recently, nonlinear charge-spin conversion under the square of electric field has been recognized in a wide variety of materials with nontrivial spin textures, opening an emerging field of nonlinear spintronics. Here, we report the investigation of both linear and nonlinear charge-spin conversion in one single topological semimetal SrIrO3(110) thin film that hosts strong spin-orbit coupling and nontrivial spin textures in the momentum space. In the nonlinear regime, the observation of crystalline direction dependent response indicates the presence of anisotropic surface states induced spin-momentum locking near the Fermi level. Such anisotropic spin textures also give rise to spin currents in the linear response regime, which mainly contributes to the fieldlike SOT component. Our work demonstrates the power of combination of linear and nonlinear approaches in understanding and utilizing charge-spin conversion in topological materials.
description: 18 pages, 5 figures
Room temperature spin-orbit torque efficiency and magnetization switching in SrRuO3-based heterostructures
Creators: name: Li, Sheng
name: Lao, Bin
name: Lu, Zengxing
name: Zheng, Xuan
name: Zhao, Kenan
name: Gong, Liguang
name: Tang, Tao
name: Wu, Keyi
name: Li, Run-Wei
name: Wang, Zhiming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin-orbit torques (SOTs) from transition metal oxides (TMOs) in conjunction with magnetic materials have recently attracted tremendous attention for realizing high-efficient spintronic devices. SrRuO3 is a promising candidate among TMOs due to its large and tunable SOT-efficiency as well as high conductivity and chemical stability. However, a further study for benchmarking the SOT-efficiency and realizing SOT-driven magnetization switching in SrRuO3 is still highly desired so far. Here, we systematically study the SOT properties of high-quality SrRuO3 thin film heterostructuring with different magnetic alloys of both IMA and PMA configuration by the harmonic Hall voltage technique. Our results indicate that SrRuO3 possesses pronounced SOT-efficiency of about 0.2 at room temperature regardless of the magnetic alloys, which is comparable to typical heavy metals (HMs). Furthermore, we achieve SOT-driven magnetization switching with a low threshold current density of 3.8x10^10 A/m^2, demonstrating the promising potential of SrRuO3 for practical devices. By making a comprehensive comparison with HMs, our work unambiguously benchmarks the SOT properties and concludes the advantages of SrRuO3, which may bring more diverse choices for SOT applications by utilizing hybrid-oxide/metal and all-oxide systems.
description: 16 pages, 4 figures, 1 table
Multilinguale Herausforderungen in der Sacherschließung
Creators: name: Fallert, Sarah
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Information Retrieval
subject: Mehrsprachigkeit
subject: Inhaltserschließung
subject: Indexierung
subject: Schlagwörter
subject: Evaluation
subject: Logfile-Analyse
subject: Retrievaltest
subject: information retrieval
subject: multilinguality
subject: subject cataloging
subject: indexing
subject: subject headings
subject: evaluation
subject: transaction log analysis
subject: retrieval test
subject: 020 Bibliotheks- und Informationswissenschaften

description: In einer Zeit, in der vermehrt automatische Verfahren der Inhaltserschließung eingesetzt und (weiter)entwickelt werden, leistet die vorliegende Studie einen Beitrag zur Diskussion um die Bedeutung der intellektuellen Sacherschließung beim Information Retrieval in einem multilingualen Kontext. Am Fallbeispiel des Online-Katalogs des Ibero-Amerikanischen Instituts wird in einem Retrievaltest die Beteiligung der überwiegend deutschsprachigen Schlagworte aus einem lokalen Thesaurus beim Auffinden von Dokumenten evaluiert. In der Studie werden 80 aus einem Logfile gewonnene Suchanfragen getestet, die in zwei gleich große Purpose Samples unterteilt wurden: ein deutsch- und ein fremdsprachiges. Ein zentrales Ergebnis der Analyse ist, dass die Indexierung mit lokalen Schlagworten für einen erheblichen Anteil der zu den Suchanfragen aufgefundenen Dokumenten verantwortlich ist. Es lassen sich jedoch unter Berücksichtigung der Multilingualität der Suchanfragen deutliche Unterschiede mit Blick auf die Bedeutung der lokalen Schlagworte ausmachen. Auch das Verhältnis der intellektuellen Sacherschließung zur automatischen Indexierung von Elementen der Kataloganreicherung (Inhaltsverzeichnisse, Volltexte o.Ä.) wird näher beleuchtet und Stärken und Schwächen der verschiedenen Erschließungsformen werden diskutiert. Abschließend werden Möglichkeiten aufgezeigt, das Potential der lokalen Schlagworte insbesondere für fremdsprachige Suchanfragen stärker einzusetzen, um die zeit- und damit kostenintensive intellektuelle Sacherschließung sinnvoll nachzunutzen.
Template-based Program Synthesis using Stellensätze
Creators: name: Goharshady, Amir Kafshdar
name: Hitarth, S.
name: Mohammadi, Fatemeh
name: Motwani, Harshit J
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Template-based synthesis, also known as sketching, is a localized approach to program synthesis in which the programmer provides not only a specification, but also a high-level ``sketch'' of the program. The sketch is basically a partial program that models the general intuition of the programmer, while leaving the low-level details as unimplemented ``holes''. The role of the synthesis engine is then to fill in these holes such that the completed program satisfies the desired specification. In this work, we focus on template-based synthesis of polynomial imperative programs with real variables, i.e.~imperative programs in which all expressions appearing in assignments, conditions and guards are polynomials over program variables. While this problem can be solved in a sound and complete manner by a reduction to the first-order theory of the reals, the resulting formulas will contain a quantifier alternation and are extremely hard for modern SMT solvers, even when considering toy programs with a handful of lines. Moreover, the classical algorithms for quantifier elimination are notoriously unscalable and not at all applicable to this use-case.
 In contrast, our main contribution is an algorithm, based on several well-known theorems in polyhedral and real algebraic geometry, namely Putinar's Positivstellensatz, the Real Nullstellensatz, Handelman's Theorem and Farkas' Lemma, which sidesteps the quantifier elimination difficulty and reduces the problem directly to Quadratic Programming (QP). Alternatively, one can view our algorithm as an efficient way of eliminating quantifiers in the particular formulas that appear in the synthesis problem. The resulting QP instances can then be handled quite easily by SMT solvers. Notably, our reduction to QP is sound and semi-complete, i.e.~it is complete if polynomials of a sufficiently high degree are used in the templates...
Evaluation of quantum dot cytotoxicity: interpretation of nanoparticle concentrations versus intracellular nanoparticle numbers
Creators: name: Manshian, Bella B.
name: Abuelmagd M. Abdelmonem
name: Kantner, Karsten
name: Pelaz, Beatriz
name: Klapper, Markus
name: Tironi, Catarina Nardi
name: Parak, Wolfgang J.
name: Himmelreich, Uwe
name: Soenen, Stefaan J.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: While substantial progress has been achieved in the design of more biocompatible nanoparticles (NP), detailed data are required on the precise interactions of NPs and their environment for more reliable interpretation of toxicity results. Therefore, this study aims to investigate the interaction of two quantum dots (QDs) of the same core material CdSe/ZnS coated with two different amphiphilic polymers, with two well-established mammalian cell lines representing possible sites of QD accumulation. Results are linked to either extracellular QD concentrations (given dose) or cellular QD levels (number of internalized particles). In this study, QD internalization, effects on cellular homeostasis, and consequent inflammatory and cytoskeletal alterations caused by these QDs were explored. Fluorescence imaging techniques, including; image-based flow cytometry, confocal microscopy and high-content imaging with the InCell analyzer were used in a multiparametric methodology to evaluate cell viability, induction of oxidative stress, mitochondrial health, cell cytoskeletal functionality and changes in cellular morphology. Gene expression arrays were also carried out on 168 key genes involved in the cytoskeletal architecture and inflammatory pathway accompanied with the analysis of focal adhesions as key markers for actin-mediated signaling. Our results show distinct differences between the PMA and PTMAEMA-stat-PLMA coated QDs, which could mainly be attributed to differences in their cellular uptake levels. The toxicity profiles of both QD types changed drastically depending on whether effects were expressed in terms of given dose or internalized particles. Both QDs triggered alterations to important but different genes, most remarkably the up-regulation of tumor suppression and necrosis genes and the down regulation of angiogenesis and metastasis genes at sub-cytotoxic concentrations of these QDs.
Non-degenerate surface pair density wave in the Kagome superconductor CsV$_3$Sb$_5$ -- application to vestigial orders
Creators: name: Yu, Yue
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: On the Sb-layer of the Kagome superconductor CsV$_3$Sb$_5$, pair density wave states have been observed. When the high-temperature charge orderings are treated as static backgrounds, these PDW states exhibit the same wavevector in the effective 2D Brillouin zone. Interestingly, these PDW states break the same symmetry on the surface. Considering the presence of this non-degenerate PDW, we investigate the implications for the possible existence of a vestigial charge-4e phase with a non-zero center-of-mass momentum. To distinguish between different vestigial phases, we propose scanning tunneling microscopy experiments. We aim to provide insights into the nature of the vestigial phases and their distinct characteristics in CsV$_3$Sb$_5$. This research sheds light on the interplay between PDW states, charge orderings, and superconductivity of the Kagome superconductor.
Tannic acid alleviates bulk and nanoparticle Nd2O3 toxicity in pumpkin: a physiological and molecular response
Creators: name: Guangcai Chen
name: Chuanxin Ma
name: Arnab Mukherjee
name: Musante, Craig
name: Jianfeng Zhang
name: White, Jason C.
name: Dhankher, Om Parkash
name: Baoshan Xing
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: The effect of dissolved organic matter (DOM) on nanoparticle toxicity to plants is poorly understood. In this study, tannic acid (TA) was selected as a DOM surrogate to explore the mechanisms of neodymium oxide NPs (Nd2O3 NPs) phytotoxicity to pumpkin (Cucurbita maxima). The results from the tested concentrations showed that 100 mg L−1 Nd2O3 NPs were significantly toxic to pumpkin in term of fresh biomass, and the similar results from the bulk particles and the ionic treatments were also evident. Exposure to 100 mg L−1 of Nd2O3 NPs and BPs in 1/5 strength Hoagland’s solution not only significantly inhibited pumpkin growth, but also decreased the S, Ca, K and Mg levels in plant tissues. However, 60 mg L−1 TA significantly moderated the observed phytotoxicity, decreased Nd accumulation in the roots, and notably restored S, Ca, K and Mg levels in NPs and BPs treated pumpkin. TA at 60 mg L−1 increased superoxide dismutase (SOD) activity in both roots (17.5%) and leaves (42.9%), and catalase (CAT) activity (243.1%) in the roots exposed to Nd2O3 NPs. This finding was confirmed by the observed up-regulation of transcript levels of SOD and CAT in Nd2O3 NPs treated pumpkin analyzed by quantitative reverse transcription polymerase chain reaction. These results suggest that TA alleviates Nd2O3 BPs/NPs toxicity through alteration of the particle surface charge, thus reducing the contact and uptake of NPs by pumpkin. In addition, TA promotes antioxidant enzymatic activity by elevating the transcript levels of genes involved in ROS scavenging. Our results shed light on the mechanisms underlying the influence of DOM on the bioavailability and toxicity of NPs to terrestrial plants.
Predicting toxic potencies of metal oxide nanoparticles by means of nano-QSARs
Creators: name: Yunsong Mu
name: Fengchang Wu
name: Zhao, Qing
name: Ji, Rong
name: Qie, Yu
name: Zhou, Yue
name: Hu, Yan
name: Chengfang Pang
name: Hristozov, Danail
name: Giesy, John P.
name: Baoshan Xing
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: Background: The enormous physicochemical and structural diversity of metal oxide nanoparticles (MeONPs) poses significant challenges to the testing of their biological uptake, biodistribution, and effects that can be used to develop understanding of key nano-bio modes of action. This has generated considerable uncertainties in the assessment of their human health and environmental risks and has raised concerns about the adequacy of their regulation. In order to surpass the extremely resource intensive case-by-case testing, intelligent strategies combining testing methods and non-testing predictive modeling should be developed. Methods: The quantitative structure-activity relationship (QSARs) in silico tools can be instrumental in understanding properties that affect the potencies of MeONPs and in predicting toxic responses and thresholds of effects. Results: The present study proposes a predictive nano-QSAR model for predicting the cytotoxicity of MeONPs. The model was applied to test the relationships between 26 physicochemical properties of 51 MeONPs and their cytotoxic effects in Escherichia coli. The two parameters, enthalpy of formation of a gaseous cation (▵Hme+) and polarization force (Z/r), were elucidated to make a significant contribution for the toxic effect of these MeONPs. The study also proposed the mechanisms of toxic potency in E. coli through the model, which indicated that the MeONPs as well as their released metal ions could collectively induce DNA damage and cell apoptosis. Significance: These findings may provide an alternative method for prioritizing current and future MeONPs for potential in vivo testing, virtual prescreening and for designing environmentally benign nanomaterials.
Derivation of generalized Einstein's equations of gravitation in some non-inertial reference frames based on the theory of vacuum mechanics
Creators: name: Wang, Xiao-Song
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: When solving the Einstein's equations for an isolated system of masses, V. Fock introduces harmonic reference frame and obtains an unambiguous solution. Further, he concludes that there exists a harmonic reference frame which is determined uniquely apart from a Lorentz transformation if suitable supplementary conditions are imposed. It is known that wave equations keep the same form under Lorentz transformations. Thus, we speculate that Fock's special harmonic reference frames may have provided us a clue to derive the Einstein's equations in some special class of non-inertial reference frames. Following this clue, generalized Einstein's equations in some special non-inertial reference frames are derived based on the theory of vacuum mechanics. If the field is weak and the reference frame is quasi-inertial, these generalized Einstein's equations reduce to Einstein's equations. Thus, this theory may also explain all the experiments which support the theory of general relativity. There exist some differences between this theory and the theory of general relativity.
description: 14 pages, 0 figures, LATEX2e. arXiv admin note: text overlap with arXiv:1806.07724
title:  Enrico Catellani: un internazionalista al Comando supremo durante la Grande Guerra
Creators: name: Sossai, Mirko
Publisher: name: RomaTrE-Press
Year: 2019

description: In anni recenti si è manifestato un rinnovato interesse nei confronti della tragica vicenda umana nonché del contributo intellettuale di un grande e per lungo tempo dimenticato internazionalista: Enrico Catellani. Professore all’Università di Padova, la “capitale al fronte” durante la Grande Guerra, servì come esperto di diritto bellico al Comando supremo: a distanza di un secolo da quegli eventi, è interessante soffermarsi sulla posizione di Catellani rispetto allo jus in bello, a partire dal suo pamphlet sulle violazioni del diritto di guerra pubblicato nel 1917.
description: Diritto internazionale e valori umanitari
Scattering Expansion for Localization in One Dimension
Creators: name: Culver, Adrian B.
name: Sathe, Pratik
name: Roy, Rahul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a perturbative approach to disordered systems in one spatial dimension that accesses the full range of phase disorder and clarifies the connection between localization and phase information. We consider a long chain of identically disordered scatterers and expand in the reflection strength of any individual scatterer. As an example application, we show analytically that in a discrete-time quantum walk, the localization length can depend non-monotonically on the strength of phase disorder (whereas expanding in weak disorder yields monotonic decrease). More generally, we obtain to all orders in the expansion a particular non-separable form for the joint probability distribution of the transmission coefficient logarithm and reflection phase. Furthermore, we show that for weak local reflection strength, a version of the scaling theory of localization holds: the joint distribution is determined by just three parameters.
description: 5+2 pages, 2 figures; expanded conclusion, minor corrections, published version
Rainbow powers of a Hamilton cycle in G(n,p)
Creators: name: Bell, Tolson
name: Frieze, Alan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35

description: We show that the threshold for having a rainbow copy of a power of a Hamilton cycle in a randomly edge colored copy of $G_{n,p}$ is within a constant factor of the uncolored threshold. Our proof requires $(1+\varepsilon)$ times the minimum number of colors.
description: 9 pages
Quantity and quality of natural organic matter influence the ecotoxicity of titanium dioxide nanoparticles
Creators: name: Seitz, Frank
name: Rosenfeldt, Ricki R.
name: Müller, Marie
name: Lüderwald, Simon
name: Schulz, Ralf
name: Bundschuh, Mirco
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Nanoparticles’ fate is amongst other parameters determined by the quantity and quality of natural organic matter (NOM). Consequently, the ecotoxicity of nanoparticles is modified, while only little information is available on the NOM characteristics triggering this interplay. This study systematically examined how NOM quantity and quality influences the acute ecotoxicity of titanium dioxide nanoparticles (nTiO2) towards Daphnia magna. Therefore, two nTiO2 products (A-100 and P25; ∼100 nm) were investigated in combination with seven NOM types of variable quality at four levels each (up to 4.00 mg total organic carbon/L). The results showed that – independent of the applied nTiO2 product and NOM type – nTiO2 ecotoxicity decreased up to a factor of >18 with increasing NOM concentration. More importantly, increasing levels of aromaticity and hydrophobicity of the NOM decreased the magnitude of toxic effects caused by nTiO2, which was again independent of the nTiO2 product tested. In the light of the ubiquitary presence of NOM, the ecotoxicological risk of nTiO2 in surface waters with high NOM loads is likely moderate. However, interactions of nTiO2 and NOM in combination with other natural or chemical stressors are not well-understood but seem to be fundamental for a reliable risk assessment of nanoparticles.
title: 01_1387
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Repeating fast radio bursts produced by a strange star interacting with its planet in an eccentric orbit
Creators: name: Nurmamat, Nurimangul
name: Huang, Yong-Feng
name: Geng, Jin-Jun
name: Kurban, Abdusattar
name: Li, Bing
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: FRB 180916 is an important repeating fast radio burst (FRB) source. Interestingly, the activity of FRB 180916 shows a well-regulated behavior, with a period of 16.35 days. The bursts are found to occur in a duty circle of about 5 days in each period. In this study, we suggest that the bursts of FRB 180916 are produced by a strange star interacting with its planet. The planet moves in a highly eccentric orbit around its compact host, with the periastron only slightly beyond the tidal disruption radius. As a result, the planet will be partially disrupted every time it passes through the periastron. The stripped material from the planet will be accreted by the strange star, falling to the polar cap region along the magnetic field lines and accumulated there. It will finally lead to a local collapse when the crust at the polar region is overloaded, triggering an FRB. The observed 16.35 day period corresponds to the orbital motion of the planet, and the 5 day duty circle is explained as the duration of the partial disruption near the periastron. The energy released in each local collapse event can be as high as $\sim 10^{42}~\rm {erg}$, which is large enough to account for typical FRBs even if the radiation efficiency is extremely low.
description: 21 pages, 2 figure, Accepted for publication in EPJ C
Lagrangian multi-sections and their toric equivariant mirror
Creators: name: Oh, Yong-Geun
name: Suen, Yat-Hin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: The SYZ conjecture suggests a folklore that "Lagrangian multi-sections are mirror to holomorphic vector bundles". In this paper, we prove this folklore for Lagrangian multi-sections inside the cotangent bundle of a vector space, which are equivariantly mirror to complete toric varieties by the work of Fang-Liu-Treumann-Zaslow. We also introduce the Lagrangian realization problem, which asks whether one can construct an unobstructed Lagrangian multi-section with asymptotic conditions prescribed by a tropical Lagrangian multi-section. We solve the realization problem for tropical Lagrangian multi-sections over a complete 2-dimensional fan that satisfy the so-called $N$-generic condition with $N\geq 3$. As an application, we show that every rank 2 toric vector bundle on the projective plane is mirror to a Lagrangian multi-section.
description: 31 pages, 7 figures. We add the details of the gluing analysis in Section 5 and an Appendix for Nadler generation result for immersed Lagrangians. The Comments are welcome!
Scattering Expansion for Localization in One Dimension: from Disordered Wires to Quantum Walks
Creators: name: Culver, Adrian B.
name: Sathe, Pratik
name: Roy, Rahul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a perturbative approach to disordered systems in one spatial dimension that accesses the full range of phase disorder and clarifies the connection between localization and phase information. We consider a long chain of identically disordered scatterers and expand in the reflection strength of any individual scatterer. We apply this expansion to several examples, including the Anderson model, a general class of periodic-on-average-random potentials, and a two-component discrete-time quantum walk, showing analytically in the latter case that the localization length can depend non-monotonically on the strength of phase disorder (whereas expanding in weak disorder yields monotonic decrease). More generally, we obtain to all orders in the expansion a particular non-separable form for the joint probability distribution of the transmission coefficient logarithm and reflection phase. Furthermore, we show that for weak local reflection strength, a version of the scaling theory of localization holds: the joint distribution is determined by just three parameters.
description: 25+19 pages, 9 figures, longer version of arXiv:2210.07999; minor corrections, published version
Poseidon 533/2 Cruise Report
Creators: name: Löb, Jonas
name: Köhler, Janna
Publisher: name: Universität Bremen
Year: 2019

description: Las Palmas (Gran Canaria) 25. March - Ponta Delgada (Azores) 1. April 2019; POS 533/2 - Energy Transfer III The Poseidon cruise POS533/2 was part of the observational program of the TRR181, an interdisciplinary research program of the Deutsche Forschungsgemeinschaft (DFG). The overarching aim of the TRR181 ?Energy transfers in atmosphere and ocean? is the energetically consistent representation of the oceanic and atmospheric energy cycles in climate models. After POS516 (2017) and POS523 (2018) the cruise POS533/2 was the third expedition to the area south of the Azores within the TRR181. Tidal forcing excites so-called internal tides at steep topography such as seamounts and the continental shelf. These internal tides have the form of underwater waves that may travel hundreds of kilometers across ocean basins. Along their paths, the waves lose their energy by a range of processes and interactions, but the how and where is mostly unknown. South of the Azores seamounts generate very energetic internal tides which radiate energy towards the Cap Verde Islands. During POS516 and POS523 we conducted a spatial survey to better understand the fluxes and dissipation of the internal tides. A mooring measuring time series of temperature and current velocities was redeployed at 30°29'N, 30°12'W during POS523 in May 2018. Its data will be used to study the temporal variability in the energy of the internal tides. With the successful retrieval of this mooring, the goal of POS533/2 was fully achieved.
title: Circonscription de Port-Lyautey-Banlieue
title: Circonscription de Port-Lyautey-Banlieue
Creators: name: :Unkn
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: subject: Urbanisme
subject: Plan d'aménagement

description: Cartographie
description: BESM-carto_1956-69-p038_069-02
description: 38
description: 69
description: Bulletin économique et social du Maroc
description: Source: Maison méditerranéenne des sciences de l'homme, Cité numérique de la Méditerranée (Cinumed), Bibliothèque nationale du Royaume du Maroc (BNRM)
description: Source: Bulletin économique et social du Maroc
description: Source: Bulletin économique et social du Maroc (BESM) > BESM (Cartographie)
description: Relation: https://cinumed.mmsh.univ-aix.fr/idurl/1/81771
description: Coverage: Maroc
description: Coverage: Kénitra
description: Coverage: XXe siècle
description: Temporal: XXe siècle
description: Bibliographic citation: « Circonscription de Port-Lyautey-Banlieue », In Bulletin économique et social du Maroc (BESM), n° 69, 1956
description: Provenance: Maison méditerranéenne des sciences de l'homme, Cité numérique de la Méditerranée (Cinumed), Bibliothèque nationale du Royaume du Maroc (BNRM)
description: Provenance: https://cinumed.mmsh.univ-aix.fr/