cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sonnenfleckenzeichnung Nr. 22248.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.06.1966, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22354.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.11.1966, erstellt von Antoine Zelenka
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Using an object-oriented database management system to store clinical information
Creators: name: Ghosh, Taranga
Publisher: name: University of Utah
Year: 2012
Subjects: Object-Orented databases
Clinical Information Systems

description: This thesis explores the use of an object-oriented database system to implement the Event Model of clinical information.  It also extends the basic model by the use of object-oriented information modeling techniques.  An attempt has been made to show that the expressive capabilities of object-oriented database systems facilitates a natural and direct implementation of the Event Model.  Database design was guided by two ideas:  (1) that there is an underlying structure to all clinical data and (2) that objects residing within the database should provide interfaces to a variety or services.  These services include decision support, information delivery and data exchange.  The clinical domain explored was laboratory medicine.  Common decision-support queries were run against the laboratory data stored in the object-oriented database.  These queries were then expressed in the relational database language SQL; the two sets of queries were compared with each other.  Several conclusions may be drawn from this work.  The size of the conceptual space of medical information requires the building of a medical concepts database to support the constrain of Event schema.  The use of an object-oriented programming language can provide a simple way of implementing the taxonomic nature of clinical data and of enforcing referential integrity constraints present in the model.
Additional file 1 of New tool for sustainable treatments: agar spray—research and practice
Creators: name: Giordano, Ambra
name: Caruso, Maria Rita
name: Lazzara, Giuseppe
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Biotechnology
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

description: Additional file 1: Figure S1. ATR-FTIR spectra of paper specimens. Paper non treated (a), paper after Agar Spray (b), paper after Agar in semi solid state (c) and Agar (d) itself.
Determination of total oxidant status by dietary assessment and association with blood and urine biomarkers
Creators: name: Artz, Tamara Lee
Publisher: name: University of Utah
Year: 2012
Subjects: biomarkers, diet, dietary assessment, oxidant status, Oxidative stress

description: Oxidant status may influence conception after in vitro fertilization, maternal health during pregnancy, and fetal outcomes including birthweight. However, few reports exist of oxidant status in women of childbearing potential. Oxidant status may be influenced by the intake of antioxidant vitamins, minerals, and phytochemicals. The purpose of this study was to examine the intake of antioxidant vitamins and minerals, measure biomarkers of oxidative stress, and evaluate the association between them. We conducted a cross-sectional study of dietary and supplement intake and measurements for biomarkers of oxidative status (malondialdehyde (MDA), glutathione (GSH), and 8- isoprostane) in women of childbearing potential. Intake was measured using a food frequency questionnaire and an overall index of dietary quality was generated (the Healthy Eating Index-2005). Additionally, a new, integrated index of oxidant stress from dietary variables, the diet oxy-score, was calculated with intake for specific antioxidant vitamins and minerals. The total oxidant status from the biomarkers was created by integrating the measured values of MDA, GSH, GSH/GSSG ratio, and 8-isoprostane into one index. Oxidative status measured with biomarkers was correlated in a biologically plausible direction with the dietary index of oxidative status, the Healthy Eating Index- 2005, zinc, manganese, vitamin E, !-carotene, iron, and selenium. The observed correlations suggest that appropriate diet and supplementary zinc, manganese, vitamin E, B carotene, iron, and selenium intake may be an effective strategy for augmenting oxidantstatus in women of childbearing potential.
Wave function of the Universe as a sum over eventually inflating universes
Creators: name: Rajeev, Karthik
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a proposal to define the wave function of the Universe as a sum over spacetimes that eventually inflate. In the minisuperspace model, we explicitly show that a simple family of initial conditions, parametrized by a positive real number $a_0$, can be imposed to realise this prescription. The resulting wave function is found to be proportional to the Hartle-Hawking wave function and its dependence on $a_0$ is only through an overall phase factor. Motivated by this observation, we ask whether it is possible to analytically extend $a_0$ to an extended region $\bar{\mathcal{D}}$ in complex $a_0-$plane, while retaining the Hartle-Hawking form of the wave function. We use the condition for convergence of path integral and a recent theorem due to Kontsevich and Segal, further extended by Witten, to explicitly find $\bar{\mathcal{D}}$. Interestingly, a special point on the boundary of $\bar{\mathcal{D}}$ recovers the exact no-boundary wave function. Following that, we show that our prescription leads to a family of quantum states for the perturbations, which give rise to scale-invariant power spectra. If we demand, as an extra ingredient to our prescription, a matching condition at the "no-boundary point" in $\bar{\mathcal{D}}$, we converge on a unique quantum state for the perturbations.
description: 16 pages, 3 figures, published version
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.12.1966, erstellt von Gisèle Kesteloot, Observatoire Royal de Belgique in Uccle
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage in Uccle.
Instrument: Merz-Grubb Refraktor Teleskop (Öffnung 160 mm, f = 2450 mm, projiziertes Sonnenbild D = 25 cm)
НАУЧНО-ТЕОРЕТИЧЕСКИЕ ОСНОВЫ РАЗВИТИЯ ДЕЯТЕЛЬНОСТИ ПО ПРИНЦИПУ STEAM-ОБРАЗОВАНИЯ В СИСТЕМЕ ДОШКОЛЬНОГО ОБРАЗОВАНИЯ
Creators: name: Кадырова, Фатима
Publisher: name: Zenodo
Year: 2024

description: В данной статье рассмотрены мнения о научно-теоретической основе развития деятельности по принципу STEAM-образования в системе дошкольного образования.
Electronic control and switching of entangled spin state using anisotropy and exchange in the three-particle paradigm
Creators: name: Switzer, Eric D.
name: Zhang, Xiao-Guang
name: Rahman, Talat S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the control and switching of the entangled spin states of multi-spin particle qubit coupled to an electron using a three-particle spin model described by $S_i$ ($i=1,2,3$), in which $S_1=\tfrac{1}{2}$ is an electron and $S_{2,3}$ can have any spin with both exchange coupling and magnetic anisotropy. We derive a general formula for the existence of a switching (DJ) resonance for any spin $S_{2,3}$. We further contrast the entanglement switching mechanisms for the $S_{2,3}=\tfrac{1}{2}$ and $S_{2,3}=1$ spin models. We find that while the onsite magnetic anisotropy in the case of $S_{2,3}>\tfrac{1}{2}$ allows full control of their spin states via interaction with $S_1$, in order to achieve acceptable control of a Bloch vector within the $S_{2,3}=\tfrac{1}{2}$ model, additional mechanisms, such as anisotropic exchange coupling, are required.
Design and scale-up of a novel biomimetic mixing system for a closed bioreactor
Creators: name: Garfield, Jayden Ryan
Publisher: name: University of Utah
Year: 2013
Subjects: Biomimicry
Bioreactor, Design
Particle Image Velocimetry
Stem Cell

description: The technologies and processes used in large scale cell bioprocessing, namely the impeller based stirred suspension bioreactor, were designed for the growth of robust and often immortal cell lines to produce protein based therapeutics. The turbulent fluid environment created by such systems was not designed to accommodate the delicate nature of stem cell suspension culture - in particular, to maintain the low shear stress and homogeneity required to retain an undamaged cell and unaltered phenotype. While new bioreactor designs have been developed to address the unique environmental needs of stem cell cultures, industrial volume scale-up is still unavailable. In this work, a novel biomimetic mixing mechanism utilizing a silicone diaphragm and an alternating actuation mechanism has been designed and developed to produce adequate fluid mixing while maintaining a low shear stress environment. The unique design, characterized on a bench-top scale, has been scaled-up over a range of volumes from 100 - 3000 ml. Using particle image velocimetry, the fluid dynamics created by the novel mixing mechanism were qualitatively and quantitatively analyzed. The mixing mechanism produced adequate fluid mixing within the vessel while maintaining mean shear stress levels more than 100 times lower than seen in impeller based spinner flasks. Furthermore, the mixing profile and mean shear stress levels remained well below requirement levels regardless of reactor volume. In conclusion, we have developed a novel mixing system which overcomes shear stress limitations of current stirred suspension reactors in volumes ranging from 100-3000 ml.
Expressivity and Generalization: Fragment-Biases for Molecular GNNs
Creators: name: Wollschläger, Tom
name: Kemper, Niklas
name: Hetzel, Leon
name: Sommer, Johanna
name: Günnemann, Stephan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Although recent advances in higher-order Graph Neural Networks (GNNs) improve the theoretical expressiveness and molecular property predictive performance, they often fall short of the empirical performance of models that explicitly use fragment information as inductive bias. However, for these approaches, there exists no theoretic expressivity study. In this work, we propose the Fragment-WL test, an extension to the well-known Weisfeiler & Leman (WL) test, which enables the theoretic analysis of these fragment-biased GNNs. Building on the insights gained from the Fragment-WL test, we develop a new GNN architecture and a fragmentation with infinite vocabulary that significantly boosts expressiveness. We show the effectiveness of our model on synthetic and real-world data where we outperform all GNNs on Peptides and have 12% lower error than all GNNs on ZINC and 34% lower error than other fragment-biased models. Furthermore, we show that our model exhibits superior generalization capabilities compared to the latest transformer-based architectures, positioning it as a robust solution for a range of molecular modeling tasks.
Active learning with MaskAL reduces annotation effort for training Mask R-CNN
Creators: name: Blok, Pieter M.
name: Kootstra, Gert
name: Elghor, Hakim Elchaoui
name: Diallo, Boubacar
name: van Evert, Frits K.
name: van Henten, Eldert J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The generalisation performance of a convolutional neural network (CNN) is influenced by the quantity, quality, and variety of the training images. Training images must be annotated, and this is time consuming and expensive. The goal of our work was to reduce the number of annotated images needed to train a CNN while maintaining its performance. We hypothesised that the performance of a CNN can be improved faster by ensuring that the set of training images contains a large fraction of hard-to-classify images. The objective of our study was to test this hypothesis with an active learning method that can automatically select the hard-to-classify images. We developed an active learning method for Mask Region-based CNN (Mask R-CNN) and named this method MaskAL. MaskAL involved the iterative training of Mask R-CNN, after which the trained model was used to select a set of unlabelled images about which the model was most uncertain. The selected images were then annotated and used to retrain Mask R-CNN, and this was repeated for a number of sampling iterations. In our study, MaskAL was compared to a random sampling method on a broccoli dataset with five visually similar classes. MaskAL performed significantly better than the random sampling. In addition, MaskAL had the same performance after sampling 900 images as the random sampling had after 2300 images. Compared to a Mask R-CNN model that was trained on the entire training set (14,000 images), MaskAL achieved 93.9% of that model's performance with 17.9% of its training data. The random sampling achieved 81.9% of that model's performance with 16.4% of its training data. We conclude that by using MaskAL, the annotation effort can be reduced for training Mask R-CNN on a broccoli dataset with visually similar classes. Our software is available on https://github.com/pieterblok/maskal.
description: 30 pages, 10 figures, 3 tables
Effect of modified nucleosides on the structure of the anticodon domain of Escherichia coli tRNALys
Creators: name: Sundaram, Mallikarjun
Publisher: name: University of Utah
Year: 2012
Subjects: Escherichia coli
tRNA(Lys), Nucleosides, Anticodon domain
Biochemistry

description: The hypermodified nucleosides 5-(methylaminomethyl)-2-thiouridine (mnm/5s/2U) and N-[(9-beta-D-Ribofuranosyl-9H-purin-6-yl)carbamoyl)]-O-tert-butyidimethylsilyl-1-threonine-trimethlsilylethyl ester (t/6A) were synthesized as their phosphoramidites. The protected phosphoramidites were incorporated into the 17-nucleotide anticodon stemloop hairpin of Escherichia coli transfer ribonucleicacid lysine (E. coli tRNA/Lys ) with only modest changes in the automated oligonucleotide synthesis protocol to accomodate the sulfur and amine side chain of mnm/5s/2U and the threonine side chain of t/6A.  Nuclear magnetic resonance (NMR) spectroscopy was used to determine the solution structures of an RNA oligonucleotide comprising the 17-nucleotide anticodon domain of native E. coli tRNA Lys containing the three modified nucleosides, mnm/5s/2 U34, t 6 A37 and psi-39. The structural effects of nucleoside modification on the anticodon domain were determined by comparison of the anticodon stem-loop (ASL) structures of tRNA Lys -mnm/5/s/2 U,psi-39; tRNA/Lys-t/6A37,psi-39; and tRNA/Lys-mnm/5s/2U34,t/6A37,psi-39.  The hypermodified mnm/5s/2U nucleoside stabilizes the canonical U-turn between U33 and the wobble nucleoside and concomitantly stabilizes stacking within the UUU anticodon. A stable U-turn is clearly indicated by a 31\ P NMR resonance shifted by more than 1.0 ppm downfield from the typical A-helical range. Sequential NOE connectivity is observed between the anticodon nucleosides 34-36 indicating contiguous stacking within the anticodon and a break between 33 and 34 as expected for the turn.  The bulky side chain of t/6A is pushed away from the 5 ' side of stem-loop hairpin on account of steric hindrance. This result in bringing the 35-p-36 towards U33, thus is stabilizing the mnm/5s/2U34-induced U-turn.  Although there is still appreciable C2 ' -endo character for the anticodon residues, the NOEs show that the anticodon has adopted a structure more similar to that of tRNA/Phe compared to the unmodified tRNA/Lys hairpin. The results from NMR experiments and CD experiments indicate that there is no direct interaction between the side chains of t/6A37 and mnm/5s2U34. Contrary to earlier claims, the anticodon loop structure of native E. coli tRNA/Lys is not unusual.
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.12.1966, erstellt am Kandilli Observatorium Istanbul
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Bleistift, erstellt als Zeichnung nach eigener Vorlage am Istanbul Kandilli Rasathanesi, Çengelköy (Istanbul). Instrument: Refraktor Teleskop (Öffnung 200 mm, f = 3070 mm, projiziertes Sonnenbild D = 25 cm).
Instrumentennachweis gemäss Kandilli Observatory Istanbul, Report from Solar Institute, in: Solar Physics, 1968, Vol. 3, Issue 3, pp.491-492, DOI: https://doi.org/10.1007/BF00171622
Role of the symmetry energy slope in neutron stars: exploring the model-dependency
Creators: name: Lopes, Luiz L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using six different parametrizations of the quantum hadrodynamics (one of which is original), I study how different values of the symmetry energy slope ($L)$ affect some microscopic and macroscopic properties of neutron stars, such as the proton fraction, the maximum mass, the radius of the canonical 1.4$M_\odot$ star and its dimensionless tidal parameter $Λ$. I show that while most quantities present the same qualitative results, the tidal parameter can increase or decrease with the slope, depending on the model. Moreover, special attention is given to the minimum mass that enables the direct URCA process to occur in neutron stars' interiors ($M_{DU})$. Assuming the weak constraint $M_{DU}~>~1.35M_\odot$, we see that the maximum value of $L$ that satisfies it lies between 79 and 86 MeV. A range of only 7 MeV. Therefore, $M_{DU}$ is an easy way to impose upper bounds to the slope.
description: 7 pages + Appendix. Similar to the published version
Deep learning in automated ultrasonic NDE -- developments, axioms and opportunities
Creators: name: Cantero-Chinchilla, Sergio
name: Wilcox, Paul D.
name: Croxford, Anthony J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The analysis of ultrasonic NDE data has traditionally been addressed by a trained operator manually interpreting data with the support of rudimentary automation tools. Recently, many demonstrations of deep learning (DL) techniques that address individual NDE tasks (data pre-processing, defect detection, defect characterisation, and property measurement) have started to emerge in the research community. These methods have the potential to offer high flexibility, efficiency, and accuracy subject to the availability of sufficient training data. Moreover, they enable the automation of complex processes that span one or more NDE steps (e.g. detection, characterisation, and sizing). There is, however, a lack of consensus on the direction and requirements that these new methods should follow. These elements are critical to help achieve automation of ultrasonic NDE driven by artificial intelligence such that the research community, industry, and regulatory bodies embrace it. This paper reviews the state-of-the-art of autonomous ultrasonic NDE enabled by DL methodologies. The review is organised by the NDE tasks that are addressed by means of DL approaches. Key remaining challenges for each task are noted. Basic axiomatic principles for DL methods in NDE are identified based on the literature review, relevant international regulations, and current industrial needs. By placing DL methods in the context of general NDE automation levels, this paper aims to provide a roadmap for future research and development in the area.
description: Accepted version to be published in NDT & E International
Sonnenfleckenzeichnung Nr. 22232.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.06.1966, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Runtime Verification on Abstract Finite State Models
Creators: name: Jevitha, KP
name: Jayaraman, Bharat
name: Sethumadhavan, M
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: Performance (cs.PF)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Finite-state models are ubiquitous in the study of concurrent systems, especially controllers and servers that operate in a repetitive cycle. In this paper, we show how to extract finite state models from a run of a multi-threaded Java program and carry out runtime verification of correctness properties. These properties include data-oriented and control-oriented properties; the former express correctness conditions over the data fields of objects, while the latter are concerned with the correct flow of control among the modules of larger software. As the extracted models can become very large for long runs, the focus of this paper is on constructing reduced models with user-defined abstraction functions that map a larger domain space to a smaller one. The abstraction functions should be chosen so that the resulting model is property preserving, i.e., proving a property on the abstract model carries over to the concrete model. The main contribution of this paper is in showing how runtime verification can be made efficient through online property checking on property-preserving abstract models. The property specification language resembles a propositional linear temporal logic augmented with simple datatypes and operators. Classic concurrency examples and larger case studies (Multi-rotor Drone Controller, OAuth Protocol) are presented in order to demonstrate the usefulness of our proposed techniques, which are incorporated in an Eclipse plug-in for runtime visualization and verification of Java programs.
description: 44 pages
Non-zero momentum requires long-range entanglement
Creators: name: Gioia, Lei
name: Wang, Chong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a quantum state in a lattice spin (boson) system must be long-range entangled if it has non-zero lattice momentum, i.e. if it is an eigenstate of the translation symmetry with eigenvalue $e^{iP}\neq1$. Equivalently, any state that can be connected with a non-zero momentum state through a finite-depth local unitary transformation must also be long-range entangled. The statement can also be generalized to fermion systems. Some non-trivial consequences follow immediately from our theorem: (1) several different types of Lieb-Schultz-Mattis-Oshikawa-Hastings (LSMOH) theorems, including a previously unknown version involving only a discrete $\mathbb{Z}_n$ symmetry, can be derived in a simple manner from our result; (2) a gapped topological order (in space dimension $d>1$) must weakly break translation symmetry if one of its ground states on torus has nontrivial momentum - this generalizes the familiar physics of Tao-Thouless; (3) our result provides further evidence of the "smoothness" assumption widely used in the classification of crystalline symmetry-protected topological (cSPT) phases.
description: 12 pages, 5 figures; RevTex4.2; Accepted in PRX
Sonnenfleckenzeichnung Nr. 22334.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.10.1966, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt
Stacking-dependent exciton multiplicity in WSe$_2$ bilayers
Creators: name: Li, Zhijie
name: Förste, Jonathan
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Urbaszek, Bernhard
name: Baimuratov, Anvar S.
name: Gerber, Iann C.
name: Högele, Alexander
name: Bilgin, Ismail
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Twisted layers of atomically thin two-dimensional materials realize a broad range of novel quantum materials with engineered optical and transport phenomena arising from spin and valley degrees of freedom and strong electron correlations in hybridized interlayer bands. Here, we report experimental and theoretical studies of WSe$_2$ homobilayers obtained in two stable configurations of 2H ($60^\circ$ twist) and 3R ($0^\circ$ twist) stackings by controlled chemical vapor synthesis of high-quality large-area crystals. Using optical absorption and photoluminescence spectroscopy at cryogenic temperatures, we uncover marked differences in the optical characteristics of 2H and 3R bilayer WSe$_2$ which we explain on the basis of beyond-DFT theoretical calculations. Our results highlight the role of layer stacking for the spectral multiplicity of momentum-direct intralayer exciton transitions in absorption, and relate the multiplicity of phonon sidebands in the photoluminescence to momentum-indirect excitons with different spin valley and layer character. Our comprehensive study generalizes to other layered homobilayer and heterobilayer semiconductor systems and highlights the role of crystal symmetry and stacking for interlayer hybrid states.
Considerations for Implementing Group-Level Prenatal Health Interventions in Low-Resource Communities: Lessons Learned from Haiti
Creators: name: Abrams, Jasmine A.
name: Forte, Janett
name: Bettler, Clarie
name: Maxwell, Morgan
Publisher: name: Maryland Shared Open Access Repository
Year: 2018
Subjects: CenteringPregnancy
group prenatal care
global health
international, patient education
vulnerable populations
quality improvement

description: Haiti’s high maternal and infant mortality rates evidence an urgent need for implementation of evidence-based strategies. A potential cost-effective strategy to mitigate high maternal and infant mortality rates is group prenatal care, an innovative model that combines antenatal clinical assessment with pregnancy education. Despite research demonstrating the effectiveness of this model in high-resource settings, less is known about the challenges of implementing it in low-resource settings. The purpose of this article is to provide recommendations for overcoming challenges of implementing group prenatal care in low-resources communities globally. Challenges addressed include language, literacy, space, cultural appropriateness of intervention content, and sociopolitical climate. Using examples from work conducted in Haiti, this information can be used to assist practitioners and researchers with overcoming challenges of implementing models of group care in international low-resource communities.
description: http://rdcu.be/FZbd
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.12.1966, erstellt von Simona Nicolescu, Observatorium Bukarest
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage am Astronomischen Observatorium Bukarest, Solarsektor, Rumänien. Instrument: Zeiss-Refraktor (Öffnung 130mm, f = 1950mm, projiziertes Sonnenbild D = 25cm)
Topological chiral and nematic superconductivity by doping Mott insulators on triangular lattice
Creators: name: Huang, Yixuan
name: Sheng, D. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The mechanism of the unconventional topological superconductivity (TSC) remains a long-standing issue. We investigate the quantum phase diagram of the extended $t$-$J$-$J_χ$ model including spin chiral interactions on triangular lattice based on the state-of-the-art density matrix renormalization group simulations. We identify distinct classes of superconducting phases characterized by nonzero topological Chern numbers $C=1$ and $2$, and a nematic d-wave superconducting phase with a zero Chern number. The TSC states are shown to emerge from doping either a magnetic insulator or chiral spin liquid, which opens new opportunities for experimental discovery. In addition, we further classify the $C=2$ class of TSC phases into an isotropic and a nematic TSC phases, and present evidence of continuous quantum phase transitions from the nematic TSC phase to both isotropic TSC and nematic d-wave phases. These results provide new insight into the mechanism of TSC with an emphasis on the role played by hole dynamics, which changes spin background and drives a topological phase transition at a hole doping level around $3\%$ upon doping a magnetic insulator to enable the emergence of the TSC.
description: 11+16 pages, 7+16 figures
A flexible and low-cost open-source IPMC mezzanine for ATCA boards based on OpenIPMC
Creators: name: Calligaris, Luigi
name: Cascadan, Andre
name: Ardila-Perez, Luis Eduardo
name: Pesaresi, Mark
name: Fedi, Giacomo
name: Peck, Andrew
name: Gastler, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This work presents the development of an Intelligent Platform Management Controller mezzanine in a Mini DIMM form factor for use in electronic boards compliant to the PICMG Advanced Telecommunication Computing Architecture (ATCA) standard. The module is based on an STMicroelectronics STM32H745 microcontroller running the OpenIPMC open-source software. The mezzanine has been successfully tested on a variety of ATCA boards being proposed for the upgrade of the experiments at the HL-LHC, with its design and firmware being distributed under open-source hardware license.
description: 6+1 pages
Sonnenfleckenzeichnung Nr. 22297.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.08.1966, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22328.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.10.1966, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22305.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.09.1966, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Efficient realization of quantum primitives for Shor's algorithm using PennyLane library
Creators: name: Antipov, A. V.
name: Kiktenko, E. O.
name: Fedorov, A. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Efficient realization of quantum algorithms is among main challenges on the way towards practical quantum computing. Various libraries and frameworks for quantum software engineering have been developed. Here we present a software package containing implementations of various quantum gates and well-known quantum algorithms using PennyLane library. Additoinally, we used a simplified technique for decomposition of algorithms into a set of gates which are native for trapped-ion quantum processor and realized this technique using PennyLane library. The decomposition is used to analyze resources required for an execution of Shor's algorithm on the level of native operations of trapped-ion quantum computer. Our original contribution is the derivation of coefficients needed for implementation of the decomposition. Templates within the package include all required elements from the quantum part of Shor's algorithm, specifically, efficient modular exponentiation and quantum Fourier transform that can be realized for an arbitrary number of qubits specified by a user. All the qubit operations are decomposed into elementary gates realized in PennyLane library. Templates from the developed package can be used as qubit-operations when defining a QNode.
description: 20 pages, 9 figures
Sonnenfleckenzeichnung Nr. 22273.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.07.1966, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Reconciling LSND and super-Kamiokande data through the dynamical Lorentz symmetry breaking in a four-Majorana fermion model
Creators: name: Gomes, Y. M. P.
name: Neves, M. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a model of Majorana fermions with quartic self-couplings. These Majorana fermions acquire masses via a type II seesaw mechanism in which the physical eigenstates are identified as a light Majorana fermion and another heavy Majorana fermion. On a physical basis, the quartic self-couplings involve axial currents of these Majorana fermions, and also the interaction of the axial current for the light particle with the heavy particle one. We introduce two auxiliaries gauge fields in this model, and we study the stability conditions of the correspondent effective potential of the model. The ground state of the effective potential introduces two 4-vectors as scales of vacuum expected values, and consequently, the dynamical Lorentz symmetry breaking (DLSB) emerges in the model. We use the expansion of the effective action to calculate the effective Lagrangian up to second order in the auxiliary fields as fluctuations around the ground state. This mechanism generates dynamics for the auxiliary gauge fields, mixed mass terms, longitudinal propagation, and Chern-Simons term through radiative corrections. After the diagonalization, the two gauge fields gain masses through an analogous type II seesaw mechanism in which a gauge boson has a light mass, and the other one acquires a heavy mass. In this scenario of Lorentz symmetry breaking, we obtain the correspondent dispersion relations for the Majorana fermions and the gauge boson fields. Posteriorly, we analyze the neutrino's oscillations in the presence of a DLSB parameter, in the transition $ν_{e} \rightarrow ν_μ$. We discuss the parameter space of this transition and show that the DLSB can conciliate the LSND and super-Kamiokande results.
description: 13 pages, 6 figures, published version in the Physical Review D
Identification of hadronic tau lepton decays using a deep neural network
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons ($τ_\mathrm{h}$) that originate from genuine tau leptons in the CMS detector against $τ_\mathrm{h}$ candidates that originate from quark or gluon jets, electrons, or muons. The algorithm inputs information from all reconstructed particles in the vicinity of a $τ_\mathrm{h}$ candidate and employs a deep neural network with convolutional layers to efficiently process the inputs. This algorithm leads to a significantly improved performance compared with the previously used one. For example, the efficiency for a genuine $τ_\mathrm{h}$ to pass the discriminator against jets increases by 10-30% for a given efficiency for quark and gluon jets. Furthermore, a more efficient $τ_\mathrm{h}$ reconstruction is introduced that incorporates additional hadronic decay modes. The superior performance of the new algorithm to discriminate against jets, electrons, and muons and the improved $τ_\mathrm{h}$ reconstruction method are validated with LHC proton-proton collision data at $\sqrt{s} =$ 13 TeV.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TAU-20-001 (CMS Public Pages)
Sonnenfleckenzeichnung Nr. 22272.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.07.1966, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22312.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.09.1966, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Two-loop tensor integral coefficients in OpenLoops
Creators: name: Pozzorini, Stefano
name: Schär, Natalie
name: Zoller, Max F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new and fully general algorithm for the automated construction of the integrands of two-loop scattering amplitudes. This is achieved through a generalisation of the open-loops method to two loops. The core of the algorithm consists of a numerical recursion, where the various building blocks of two-loop diagrams are connected to each other through process-independent operations that depend only on the Feynman rules of the model at hand. This recursion is implemented in terms of tensor coefficients that encode the polynomial dependence of loop numerators on the two independent loop momenta. The resulting coefficients are ready to be combined with corresponding tensor integrals to form scattering probability densities at two loops. To optimise CPU efficiency we have compared several algorithmic options identifying one that outperforms naive solutions by two orders of magnitude. This new algorithm is implemented in the OpenLoops framework in a fully automated way for two-loop QED and QCD corrections to any Standard Model process. The technical performance is discussed in detail for several $2\to2$ and $2\to 3$ processes with up to order $10^5$ two-loop diagrams. We find that the CPU cost scales linearly with the number of two-loop diagrams and is comparable to the cost of corresponding real-virtual ingredients in a NNLO calculation. This new algorithm constitutes a key building block for the construction of an automated generator of scattering amplitudes at two loops.
description: v2: version accepted by JHEP; references and minor clarifications added
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.10.1966, erstellt von Dursun Koçer an der Universitätssternwarte Istanbul
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1966

description: Bleistiftzeichnung mit Tinte und Bleistift, erstellt als Zeichnung nach eigener Vorlage am Istanbul Universitesi Observatuari, Beyazit (Istanbul). Instrument: Zeiss Refraktor Teleskop (Öffnung 130 mm, f = 2000 mm, projiziertes Sonnenbild D = 25 cm)