cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Composition of Control Barrier Functions With Differing Relative Degrees for Safety Under Input Constraints
Creators: name: Rabiee, Pedram
name: Hoagg, Jesse B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a new approach for guaranteed safety subject to input constraints (e.g., actuator limits) using a composition of multiple control barrier functions (CBFs). First, we present a method for constructing a single CBF from multiple CBFs, which can have different relative degrees. This construction relies on a soft minimum function and yields a CBF whose $0$-superlevel set is a subset of the union of the $0$-superlevel sets of all the CBFs used in the construction. Next, we extend the approach to systems with input constraints. Specifically, we introduce control dynamics that allow us to express the input constraints as CBFs in the closed-loop state (i.e., the state of the system and the controller). The CBFs constructed from input constraints do not have the same relative degree as the safety constraints. Thus, the composite soft-minimum CBF construction is used to combine the input-constraint CBFs with the safety-constraint CBFs. Finally, we present a feasible real-time-optimization control that guarantees that the state remains in the $0$-superlevel set of the composite soft-minimum CBF. We demonstrate these approaches on a nonholonomic ground robot example.
description: 2024 American Control Conference (ACC)
Status versus growth: The distributional effects of school accountability policies
Creators: name: Ladd, Helen
name: Lauen, Douglas
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Although the federal No Child Left Behind program judges the effectiveness of schools based on their students’ achievement status, many policy analysts argue that schools should be measured, instead, by their students’ achievement growth. Using a ten-year student-level panel dataset from North Carolina, we examine how school-specific pressure associated with the two approaches to school accountability affects student achievement at different points in the prior-year achievement distribution. Achievement gains for students below the proficiency cut point emerge in response to both types of accountability systems. In contrast to prior research highlighting the possibility of educational triage, we find little or no evidence that schools in North Carolina ignore the students far below proficiency under either approach. Importantly, we find that the status, but not the growth, approach reduces the reading achievement of higher performing students, with the losses in the aggregate exceeding the gains at the bottom. Our analysis suggests that the distributional effects of accountability pressure depend not only on the type of pressure for which schools are held accountable (status or growth), but also the tested subject.
An experimental system for detection and localization of hemorrhage using ultra-wideband microwaves with deep learning
Creators: name: Hedayati, Eisa
name: Safari, Fatemeh
name: Verghese, George
name: Ciancia, Vito R.
name: Sodickson, Daniel K.
name: Dehkharghani, Seena
name: Alon, Leeor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Stroke is a leading cause of mortality and disability. Emergent diagnosis and intervention are critical, and predicated upon initial brain imaging; however, existing clinical imaging modalities are generally costly, immobile, and demand highly specialized operation and interpretation. Low-energy microwaves have been explored as low-cost, small form factor, fast, and safe probes of tissue dielectric properties, with both imaging and diagnostic potential. Nevertheless, challenges inherent to microwave reconstruction have impeded progress, hence microwave imaging (MWI) remains an elusive scientific aim. Herein, we introduce a dedicated experimental framework comprising a robotic navigation system to translate blood-mimicking phantoms within an anatomically realistic human head model. An 8-element ultra-wideband (UWB) array of modified antipodal Vivaldi antennas was developed and driven by a two-port vector network analyzer spanning 0.6-9.0 GHz at an operating power of 1 mw. Complex scattering parameters were measured, and dielectric signatures of hemorrhage were learned using a dedicated deep neural network for prediction of hemorrhage classes and localization. An overall sensitivity and specificity for detection >0.99 was observed, with Rayliegh mean localization error of 1.65 mm. The study establishes the feasibility of a robust experimental model and deep learning solution for UWB microwave stroke detection.
Philosophy within Data Science Ethics Courses
Creators: name: Colando, Sara
name: Hardin, Johanna
Publisher: name: arXiv
Year: 2023
Subjects: subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: There is wide agreement that ethical considerations are a valuable aspect of a data science curriculum, and to that end, many data science programs offer courses in data science ethics. There are not always, however, explicit connections between data science ethics and the centuries-old work on ethics within the discipline of philosophy. Here, we present a framework for bringing together key data science practices with ethics topics. The ethics topics were collated from sixteen data science ethics courses with public-facing syllabi and reading lists. We encourage individuals who are teaching data science ethics to engage with the philosophical literature and its connection to current data science practices, which are rife with potentially morally charged decision points.
Evidence for universal relations describing a gas with $p$-wave interactions
Creators: name: Luciuk, C.
name: Trotzky, S.
name: Smale, S.
name: Yu, Zhenhua
name: Zhang, Shizhong
name: Thywissen, J. H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Thermodynamics provides powerful constraints on physical and chemical systems in equilibrium. However, non-equilibrium dynamics depends explicitly on microscopic properties, requiring an understanding beyond thermodynamics. Remarkably, in dilute gases, a set of universal relations is known to connect thermodynamics directly with microscopic properties. So far, these "contact" relations have been established only for interactions with $s$-wave symmetry, i.e., without relative angular momentum. We report measurements of two new physical quantities, the "$p$-wave contacts", and present evidence that they encode the universal aspects of $p$-wave interactions through recently proposed relations. Our experiments use an ultracold Fermi gas of $^{40}$K, in which $s$-wave interactions are suppressed by polarising the sample, while $p$-wave interactions are enhanced by working near a scattering resonance. Using time-resolved spectroscopy, we study how correlations in the system develop after "quenching" the atoms into an interacting state. Combining quasi-steady-state measurements with new contact relations, we infer an attractive $p$-wave interaction energy as large as half the Fermi energy. Our results reveal new ways to understand and characterise the properties of a resonant $p$-wave quantum gas.
description: Minor corrections to methods & supplements
Manufacturing compromise: a study of gendered labour processes at a Chinese nickel refinery in Papua New Guinea
Creators: name: Kuo, I-Chang
Publisher: name: The Australian National University
Year: 2022

description: A general perception exists about Chinese import labour practices, and gender ideas carried out at home, and that these practices and beliefs conflict with the values harboured by the communities and workers in Papua New Guinea (PNG). I argue in this thesis that both parties (Chinese and Papua New Guinean employees) learn to compromise and adjust to collaborate, upholding, in particular, the values and regulations developed during the Australian administration. Additionally, because most local employees are half subsistence farmers and half workers, indigenous cultural values continue to influence Papua New Guinean employees' understandings of work and modify Chinese management's behaviour. Due to the unfamiliarity with local culture and mining regulations, the Mandarin Chinese compound term mohe ('friction and cooperation') encapsulates the different stages of work relations in this ethnic enclave where the Chinese and PNG states are absently present. In the process of learning to work together, Papua New Guinean and Chinese employees' experiences as refinery workers are results of how they negotiated with past understandings and conceded to new work situations. Because of their intercultural work experiences, refinery employees' reconfigurations of gender identities, including masculinities, are also impacted by the compromises they make throughout their employment.
Self-reported crying during the menstrual cycle: Sign of discomfort and emotional turmoilor erroneous beliefs?
Creators: name: Becht, M. C.
name: van Tilburg, M. A. L.
name: Vingerhoets, A. J. J. M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Crying is generally associated with distress and discomfort and is also part of the premenstrual syndrome in women. Therefore the present studies focused on crying fluctuations during the menstrual cycle. First, a retrospective cross-cultural study among women from 33 different countries (N= 2447) was conducted. Crying proneness reportedly increased before menstruation, with remarkable cross-cultural differences. Women using oral contraceptives (OC) largely reported the same pattern of results as women not using OC. In a second study, 82 Dutch students kept a crying and mood diary for two consecutive menstrual cycles. During no phase of the menstrual cycle, actual crying episodes nor crying proneness was increased, although significant changes in mood were reported. Given the large cross-cultural differences on the one hand, and the remarkable correspondence between the self-reports of those using OC and those who do not use OC on the other hand, it is concluded that the role of female sex hormone fluctuations in crying has to be questioned. Rather, it seems more likely that fluctuations in self-reported crying are based on implicit theories on the relation between menstrual cycle, mood, and crying
Effective-One-Body Numerical-Relativity waveform model for Eccentric spin-precessing binary black hole coalescence
Creators: name: Liu, Xiaolin
name: Cao, Zhoujian
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Waveform models are important to gravitational wave data analysis. People recently pay much attention to the waveform model construction for eccentric binary black hole coalescence. Several Effective-One-Body Numerical-Relativity waveform models of eccentric binary black hole coalescence have been constructed. But none of them can treat orbit eccentricity and spin-precessing simultaneously. The current paper focuses on this problem. The authors previously have constructed waveform model for spin-aligned eccentric binary black hole coalescence $\texttt{SEOBNRE}$. Here we extend such waveform model to describe eccentric spin-precessing binary black hole coalescence. We calculate the 2PN orbital radiation-reaction forces and the instantaneous part of the decomposed waveform for a general spinning precessing binary black hole system in effective-one-body (EOB) coordinates. We implement these results based on our previous $\texttt{SEOBNRE}$ waveform model. We have also compared our model waveforms to both SXS and RIT numerical relativity waveforms. We find good consistency between our model and numerical relativity. Based on our new waveform model, we analyze the impact of the non-perpendicular spin contributions on waveform accuracy. We find that the non-perpendicular spin contributions primarily affect the phase of the gravitational waveforms. For the current gravitational wave detectors, this contribution is not significant. The future detectors may be affected by such non perpendicular spin contributions. More importantly our $\texttt{SEOBNRE}$ waveform model, as the first theoretical waveform model to describe eccentric spin-precessing binary black hole coalescence, can help people to analyze orbit eccentricity and spin precession simultaneously for gravitational wave detection data.
description: 19 pages,12 figures
Sur les automorphismes bornés de corps munis d'opérateurs
Creators: name: Blossier, Thomas
name: Hardouin, Charlotte
name: Martin-Pizarro, Amador
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45, 12H05

description: We give an alternative proof, valid in all characteristics, of a result of Lascar characterising the bounded automorphisms of an algebraically closed field. We generalise this method to various fields equipped with operators.
description: in French, Work started during the programme Model Theory, Arithmetic Geometry and Number Theory, at MSRI on Spring 2014
Normative Judgement, Rationality, and Reflective Agency
Creators: name: Barrett, Hugh
Publisher: name: The Australian National University
Year: 2022

description: Normative judgements have distinctive features that call out for explanation. In this thesis I provide an explanation of these distinctive features by defending three main philosophical positions. First, I provide a novel analysis of normative concepts in terms of the concept of rationality. Secondly, I provide an account of the concept of rationality in terms of the role that it plays in the ascription of mental states. And, finally, I defend a cognitivist account of reflective agency, according to which self-governing agents regulate their own mental states by self-ascribing them. The overall picture I will be developing can be summarised as follows: normative judgements are judgements about rationality, which rationally constrain our attitudes because they rationally constrain the self-ascriptions by means of which we regulate those attitudes.
Sonnenfleckenzeichnung Nr. 271.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.11.2009, 13:45, erstellt von Anna Cairati
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Additional file 2 of Strategies for effective dissemination of research to United States policymakers: a systematic review
Creators: name: Ashcraft, Laura Ellen
name: Quinn, Deirdre A.
name: Brownson, Ross C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Additional File 2. Search Strategy.
Optimal trading ratios for pollution permit markets
Creators: name: Holland, Stephen
name: Yates, Andrew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: We analyze a novel method for improving the efficiency of pollution permit markets by optimizing the way in which emissions are exchanged through trade. Under full-information, it is optimal for emissions to exchange according to the ratio of marginal damages. However, under a canonical model with asymmetric information between the regulator and the sources of pollution, we show that these marginal damage trading ratios are generally not optimal, and we show how to modify them to improve efficiency. We calculate the optimal trading ratios for a global carbon market and for a regional nitrogen market. In these examples, the gains from using optimal trading ratios rather than marginal damage trading ratios range from substantial to trivial, which suggests the need for careful consideration of the structure of asymmetric information when designing permit markets.
Additional file 3 of Strategies for effective dissemination of research to United States policymakers: a systematic review
Creators: name: Ashcraft, Laura Ellen
name: Quinn, Deirdre A.
name: Brownson, Ross C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Additional File 3. Data Abstraction Form.
Persistence in voting behavior: stronghold dynamics in elections
Creators: name: Pérez, Toni
name: Fernández-Gracia, Juan
name: Ramasco, Jose J.
name: Eguíluz, Víctor M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Influence among individuals is at the core of collective social phenomena such as the dissemination of ideas, beliefs or behaviors, social learning and the diffusion of innovations. Different mechanisms have been proposed to implement inter-agent influence in social models from the voter model, to majority rules, to the Granoveter model. Here we advance in this direction by confronting the recently introduced Social Influence and Recurrent Mobility (SIRM) model, that reproduces generic features of vote-shares at different geographical levels, with data in the US presidential elections. Our approach incorporates spatial and population diversity as inputs for the opinion dynamics while individuals' mobility provides a proxy for social context, and peer imitation accounts for social influence. The model captures the observed stationary background fluctuations in the vote-shares across counties. We study the so-called political strongholds, i.e., locations where the votes-shares for a party are systematically higher than average. A quantitative definition of a stronghold by means of persistence in time of fluctuations in the voting spatial distribution is introduced, and results from the US Presidential Elections during the period 1980-2012 are analyzed within this framework. We compare electoral results with simulations obtained with the SIRM model finding a good agreement both in terms of the number and the location of strongholds. The strongholds duration is also systematically characterized in the SIRM model. The results compare well with the electoral results data revealing an exponential decay in the persistence of the strongholds with time.
description: Lecture Notes in Computer Science: Social Computing, Behavioral-Cultural Modeling, and Prediction (2015)
Definable choice for a class of weakly o-minimal theories
Creators: name: Laskowski, Michael C.
name: Shaw, Christopher S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C64

description: Given an o-minimal structure ${\mathcal M}$ with a group operation, we show that for a properly convex subset $U$, the theory of the expanded structure ${\mathcal M}'=({\mathcal M},U)$ has definable Skolem functions precisely when ${\mathcal M}'$ is valuational. As a corollary, we get an elementary proof that the theory of any such ${\mathcal M}'$ does not satisfy definable choice.
description: 11 pages
Sonnenfleckenzeichnung Nr. 150.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.06.2009, 10:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Thermodynamic Topological Classifications of Well-Known Black Holes
Creators: name: Mehmood, Aqsa
name: Shahzad, M. Umair
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we investigate the thermodynamic properties of black holes (BHs) that have non-trivial topological features in their phase diagrams. We consider three different models of BHs: (1) a class of BHs in dRGT massive gravity, which adds a mass term to general relativity; (2) a class of BHs in 5D Yang-Mills massive gravity, which combines dRGT massive gravity with a non-Abelian gauge field; and (3) a D-dimensional RN-AdS BH surrounded by Quintessence and a cloud of strings, which are strange forms of matter that change the thermodynamics of the BH. Our goal is to find the critical points of these BHs, which provide the location of first-order phase transitions and figure out their corresponding topological charges. Topological charges are numbers that show how complicated the BH topology is. Then, we look at these BHs as topological defects in the thermodynamic domain, which is the space of thermodynamic variables like pressure and temperature. We calculate winding numbers to analyze topology on a global and local scale at these defects, which are integers that indicate how many times a curve encircling the defect wraps around the origin. Our analysis reveals that the total topological charge is either equal to 0 or 1 for all models, meaning that the BHs have either a trivial or simple topology. In some cases, we see that the BH's topology belongs to a different thermodynamic topological class. This means that the BHs can go through topological phase transitions.
Computational modeling for the stochastic yarn variability of braided composites due to manufacturing processes
Creators: name: Balokas, Georgios
name: Kriegesmann, Benedikt
name: Czichon, Steffen
name: Rolfes, Raimund
Publisher: name: Zenodo
Year: 2018
Subjects: Braided textiles
uncertainties
random fields
multiscale modeling
Kriging

description: The several manufacturing stages a braided textile must go through until its completion, append random material defects in terms of geometry. These uncertainties are not only difficult to predict, but also hard to be minimized, and since they mostly occur in lower scales, they significantly affect the response of materials with such a heterogeneous nature. Realistic numerical, multiscale models should account for the variability of their representative volume elements, thus have the ability to include spatial randomness.
 In this work, novel modeling strategies are proposed for the consideration of geometrical uncertainties of 3D braided composites. The problem of distorted yarns due to high levels of compaction is simulated with a technique inspired from random inclusion studies, able to describe the yarn section of the mesoscale with a 1D random field. This approach can randomize sections of any shape. The problem of yarn waviness (stochastic deviations from the hypothetical perfect yarn trajectory) is dealt with a formulation based on Gaussian process modeling (a.k.a. Kriging), where 1D Gaussian random fields are appropriately tailored to match the systematic yarn path (trend). Statistical characteristics (e.g. correlation, variance etc.) gathered from physical samples can be included in the proposed approach in a straightforward manner, while several other advantages over older techniques are discussed.
 All modeling techniques discussed herein, are suitable for finite element simulations. Applications for a 3D braided multiscale model (based on previous work1 by the authors) are presented, emphasizing on the variability of the elastic tensor of the macroscale due to each type of uncertainty. The voxel method is used for the discretization of the imperfect volume element. The need for realistic uncertainty quantification is highlighted, while the coupling of manufacturing processes and structural mechanics is more crucial than ever.
Deterministic photon source of genuine three-qubit entanglement
Creators: name: Meng, Yijian
name: Chan, Ming Lai
name: Nielsen, Rasmus B.
name: Appel, Martin H.
name: Liu, Zhe
name: Wang, Ying
name: Bart, Nikolai
name: Wieck, Andreas D.
name: Ludwig, Arne
name: Midolo, Leonardo
name: Tiranov, Alexey
name: Sørensen, Anders S.
name: Lodahl, Peter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Deterministic photon sources allow long-term advancements in quantum optics. A single quantum emitter embedded in a photonic resonator or waveguide may be triggered to emit one photon at a time into a desired optical mode. By coherently controlling a single spin in the emitter, multi-photon entanglement can be realized. We demonstrate a deterministic source of three-qubit entanglement based on a single electron spin trapped in a quantum dot embedded in a planar nanophotonic waveguide. We implement nuclear spin narrowing to increase the spin dephasing time to $T_2^* \simeq 33$ ns, which enables high-fidelity coherent optical spin rotations, and realize a spin-echo pulse sequence for sequential generation of high-fidelity spin-photon and spin-photon-photon entanglement. The emitted photons are highly indistinguishable, which is a key requirement for subsequent photon fusions to realize larger entangled states. This work presents a scalable deterministic source of multi-photon entanglement with a clear pathway for further improvements, offering promising applications in photonic quantum computing or quantum networks.
Sonnenfleckenzeichnung Nr. 13.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 19.01.2009, 10:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Additional file 1 of Strategies for effective dissemination of research to United States policymakers: a systematic review
Creators: name: Ashcraft, Laura Ellen
name: Quinn, Deirdre A.
name: Brownson, Ross C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Additional File 1. PRISMA Checklist.
Sonnenfleckenzeichnung Nr. 78.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.04.2009, 08:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Ballot Box Planning: Rail Referenda Implementation
Creators: name: Gainsborough, Juliet
name: Lowe, Kate
name: Nguyen, Mai
name: Pendall, Rolf
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Metropolitan areas in the United States frequently finance new rail lines with local option taxes, and, as a result, rail plans and associated taxes often come before voters as ballot measures. Existing research finds that rail ballot measures are more likely to pass when taxes are linked to specific projects and planning has broad stakeholder involvement. Such studies, however, have not examined to what extent agencies implement voter-approved projects. This research fills this gap and finds the interrelated variables of ballot measure provisions, campaign supporters and strategies, and planned rail projects contribute to varied progress toward implementation in Denver, Houston, and Miami. In addition, a fourth variable, transit agency capacity, is critical for implementation and for securing federal support. Because electoral strategies may contribute to or mitigate implementation challenges, rail and regional advocates should weigh the long-term consequences of ambitious rail plans and consider transit agency capacity.
HOW DO DIFFERENCES IN PROPERTY TAXES WITHIN CITIES AFFECT URBAN SPRAWL?
Creators: name: Zenou, Yves
name: Song, Yan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: This article attempts a formal analysis of the connection between the differentiated property tax rates within urban areas and urban spatial pattern in U.S. cities. We first develop a duocentric-city model where the Central Business District (CBD) is located at the origin while the Suburban Business District (SBD) is at the other end of the city. We show that the ratio between the property tax in the suburbs and in the center has an ambiguous impact on the size of the city. We then test this model empirically to determine this sign by using a dataset of effective property tax rates we developed using GIS techniques for central cities and suburbs in 445 urbanized areas. The empirical analysis estimates the link between these two variables by controlling for variables such as population, income, agricultural rent, commuting cost, climate, crime, and employment structure. Results from the empirical analyses suggest that a lower property tax rate in the suburbs in comparison to the central city is associated with more expansive urban growth and greater level of decentralization of population and employment.
Singular Sets and the Lavrentiev Phenomenon
Creators: name: Gratwick, Richard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We show that non-occurrence of the Lavrentiev phenomenon does not imply that the singular set is small. Precisely, given a compact Lebesgue null subset of the line $E$ and an arbitrary superlinearity, there exists a smooth, strictly convex Lagrangian with this superlinear growth, such that all minimizers of the associated variational problem have singular set exactly $E$, but still admit approximation in energy by smooth functions.
description: 18 pages, to appear in Proc. Roy. Soc. Edinburgh Sect A
Smooth Crossover Between Weak and Strong Thermalization using Rigorous Bounds on Equilibration of Isolated Systems
Creators: name: Prazeres, Luis Fernando dos
name: de Oliveira, Thiago R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is usually expected and observed that non-integrable isolated quantum systems thermalize. However, for some non-integrable spin chain models, in a numerical study, initial states with oscillations that persisted for some time were found and the phenomenon was named weak thermalization. Later, it was argued that such oscillations will eventually decay suggesting that weak thermalization was about time scales and not the size of the fluctuations. Nevertheless, the analyses of the size of the fluctuations were more qualitative. Here, using exact diagonalization we analyze how the size of the typical fluctuation, after long enough time for equilibration to happen, scales with the system size. For that, we use rigorous mathematical upper bounds on the equilibration of isolated quantum systems. We show that weak thermalization can be understood to be due to the small effective dimension of the initial state. Furthermore, we show that the fluctuations decay exponentially with the system size for both weak and strong thermalization indicating no sharp transitions between these two regimes.
Sonnenfleckenzeichnung Nr. 144.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.06.2009, 07:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
On $A_p$-$A_\infty$ type estimates for square functions
Creators: name: Lacey, Michael T.
name: Li, Kangwei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We prove strong-type $A_p$-$A_\infty$ estimate for square functions, improving on the $ A_p$ bound due to Lerner. Entropy bounds, in the recent innovation of Treil-Volberg, are then proved. The techniques of proof include parallel stopping cubes, pigeon-hole arguments, and the approach to entropy bounds of Lacey--Spencer.
description: 12 pages. Final version, to appear in Math. Z
Sonnenfleckenzeichnung Nr. 116.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.05.2009, 07:15, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 95.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.04.2009, 07:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Non-Adaptive Coding for Two-Way Wiretap Channel with or without Cost Constraints
Creators: name: Hayashi, Masahito
name: Chen, Yanling
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper studies the secrecy results for the two-way wiretap channel (TW-WC) with an external eavesdropper under a strong secrecy metric. Employing non-adaptive coding, we analyze the information leakage and the decoding error probability, and derive inner bounds on the secrecy capacity regions for the TW-WC under strong joint and individual secrecy constraints. For the TW-WC without cost constraint, both the secrecy and error exponents could be characterized by the conditional Rényi mutual information in a concise and compact form. And, some special cases secrecy capacity region and sum-rate capacity results are established, demonstrating that adaption is useless in some cases or the maximum sum-rate that could be achieved by non-adaptive coding. For the TW-WC with cost constraint, we consider the peak cost constraint and extend our secrecy results by using the constant composition codes. Accordingly, we characterize both the secrecy and error exponents by a modification of Rényi mutual information, which yields inner bounds on the secrecy capacity regions for the general discrete memoryless TW-WC with cost constraint. Our method works even when a pre-noisy processing is employed based on a conditional distribution in the encoder and can be easily extended to other multi-user communication scenarios.
Additional file 1 of Optimising the mutation screening strategy in Marfan syndrome and identifying genotypes with more severe aortic involvement
Creators: name: Stengl, Roland
name: Bors, András
name: Ágg, Bence
name: Pólos, Miklós
name: Gabor Matyas
name: Molnár, Mária Judit
name: Fekete, Bálint
name: Csabán, Dóra
name: Andrikovics, Hajnalka
name: Merkely, Béla
name: Radovits, Tamás
name: Szabolcs, Zoltán
name: Benke, Kálmán
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Identified (likely) pathogenic mutations.
Sonnenfleckenzeichnung Nr. 281.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 23.11.2009, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Open tubular liquid-chromatography and the analysis of single neurons
Creators: name: Jorgenson, J.W.
name: de Wit, J.S.M.
name: White, J.G.
name: Kennedy, R.T.
name: Dluzneski, P.R.
name: St. Claire, III, R.L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: Liquid chromatography in open tubular columns (OTLC) offers a means of achieving separations of high resolving power within analysis times of minutes to hours. A theory which predicts the optimal dimensions for an open tubular column for a given set of analytical conditions has been developed [1]. This theory predicts that for a wide range of possible inlet pressures and analysis times the most efficient columns will result when the column inner diameter is between 1.5 and 3 μm. A column of 2 μm diameter and 2 meter length should be capable of producing a million theoretical plates for an analyte with a capacity factor of 10 (strongly retained) and a retention time of 100 minutes.
Sonnenfleckenzeichnung Nr. 121.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.05.2009, 07:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Classification of topological quantum matter with symmetries
Creators: name: Chiu, Ching-Kai
name: Teo, Jeffrey C. Y.
name: Schnyder, Andreas P.
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Topological materials have become the focus of intense research in recent years, since they exhibit fundamentally new physical phenomena with potential applications for novel devices and quantum information technology. One of the hallmarks of topological materials is the existence of protected gapless surface states, which arise due to a nontrivial topology of the bulk wave functions. This review provides a pedagogical introduction into the field of topological quantum matter with an emphasis on classification schemes. We consider both fully gapped and gapless topological materials and their classification in terms of nonspatial symmetries, such as time-reversal, as well as spatial symmetries, such as reflection. Furthermore, we survey the classification of gapless modes localized on topological defects. The classification of these systems is discussed by use of homotopy groups, Clifford algebras, K-theory, and non-linear sigma models describing the Anderson (de-)localization at the surface or inside a defect of the material. Theoretical model systems and their topological invariants are reviewed together with recent experimental results in order to provide a unified and comprehensive perspective of the field. While the bulk of this article is concerned with the topological properties of noninteracting or mean-field Hamiltonians, we also provide a brief overview of recent results and open questions concerning the topological classifications of interacting systems.
description: 10 tables and 14 figures. Accepted for publication in Rev. Mod. Phys
Sonnenfleckenzeichnung Nr. 58.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.03.2009, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Fantastic enzymes: Where and how to find them (webinar)
Creators: name: Ferrer, Manuel
name: Rodá, Sergi
name: Chow, Jennifer
name: Müller, Markus
name: Klement, Tobias
name: Molina-Espeja, Patricia
Publisher: name: Zenodo
Year: 2022
Subjects: enzymes
bioeconomy
metagenomics
sustainability
enzyme engineering
detergents
cosmetics
textiles

description: In the context of our project, we organised a webinar at which almost 200 participants assisted. It was aimed at everyone who cares about a greener and more sustainable future. The development of sustainable and resource-saving processes is a major focus of R&D&I work, also supported heavily by the European Commission as part of the Green Deal and the sustainability efforts. In this context, biotechnology is already acting as a facilitator to achieve a circular economy and a bioeconomy. We aim to achieve these goals with the identification, optimisation, production and application of innovative enzymes to support the transformation of various industrial sectors and their consumer products. In this webinar, we wanted to present the competences and topics we acquire or work on in FuturEnzyme to an interested international audience. With this CLIB Forum event, we want to emphasise and promote the need for collaboration between researchers, entrepreneurs, and manufacturers for a greener and more sustainable future. Furthermore, our webinar was also of interest for policy makers, funding bodies, investors and consumers. The FuturEnzyme project partners CSIC, Barcelona Supercomputing Center and the University of Hamburg presented their activities in the project and beyond to a wide range audience.
Sonnenfleckenzeichnung Nr. 98.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.05.2009, 10:15, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2009

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)