cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A note on the action with the Schwarzian at the stretched horizon
Creators: name: Ali, Mohd
name: Suneeta, Vardarajan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we discuss the quantization of an interesting model of Carlip which appeared recently. It shows a way to associate boundary degrees of freedom to the stretched horizon of a stationary non-extremal black hole, as has been done in JT gravity for near-extremal black holes. The path integral now contains an integral over the boundary degrees of freedom, which are time reparametrizations of the stretched horizon keeping its length fixed. These boundary degrees of freedom can be viewed as elements of $Diff(S^1)/S^1$, which is the coadjoint orbit of an ordinary coadjoint vector under the action of the Virasoro group. From the symplectic form on this manifold, we obtain the measure in the boundary path integral. Doing a one-loop computation about the classical solution, we find that the one-loop answer is not finite, signalling that either the classical solution is unstable or there is an indefiniteness problem with this action, similar to the conformal mode problem in quantum gravity. Upon analytically continuing the field, the boundary partition function we get is independent of the inverse temperature and does not contribute to the thermodynamics at least at one-loop. This is in contrast to the study of near-extremal black holes in JT gravity, where the entire contribution to thermodynamics is from boundary degrees of freedom.
description: 40 pages
GSRFormer: Grounded Situation Recognition Transformer with Alternate Semantic Attention Refinement
Creators: name: Cheng, Zhi-Qi
name: Dai, Qi
name: Li, Siyao
name: Mitamura, Teruko
name: Hauptmann, Alexander G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Grounded Situation Recognition (GSR) aims to generate structured semantic summaries of images for "human-like" event understanding. Specifically, GSR task not only detects the salient activity verb (e.g. buying), but also predicts all corresponding semantic roles (e.g. agent and goods). Inspired by object detection and image captioning tasks, existing methods typically employ a two-stage framework: 1) detect the activity verb, and then 2) predict semantic roles based on the detected verb. Obviously, this illogical framework constitutes a huge obstacle to semantic understanding. First, pre-detecting verbs solely without semantic roles inevitably fails to distinguish many similar daily activities (e.g., offering and giving, buying and selling). Second, predicting semantic roles in a closed auto-regressive manner can hardly exploit the semantic relations among the verb and roles. To this end, in this paper we propose a novel two-stage framework that focuses on utilizing such bidirectional relations within verbs and roles. In the first stage, instead of pre-detecting the verb, we postpone the detection step and assume a pseudo label, where an intermediate representation for each corresponding semantic role is learned from images. In the second stage, we exploit transformer layers to unearth the potential semantic relations within both verbs and semantic roles. With the help of a set of support images, an alternate learning scheme is designed to simultaneously optimize the results: update the verb using nouns corresponding to the image, and update nouns using verbs from support images. Extensive experimental results on challenging SWiG benchmarks show that our renovated framework outperforms other state-of-the-art methods under various metrics.
description: ACM Multimedia 2022 (Oral), Code: https://github.com/zhiqic/GSRFormer
ClassSTRONG: Classical simulations of Strong Field processes
Creators: name: Ciappina, M. F.
name: Pérez-Hernández, J. A.
name: Lewenstein, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A set of Mathematica functions is presented to model classically two of the most important processes in strong field physics, namely high-order harmonic generation (HHG) and above-threshold ionization (ATI). Our approach is based on the numerical solution of the Newton-Lorentz equation of an electron moving on an electric field and takes advantage of the symbolic languages features and graphical power of Mathematica. Similarly as in the Strong Field Approximation (SFA), the effects of atomic potential on the motion of electron in the laser field are neglected. The SFA has proven to be an essential tool in strong field physics in the sense that it is able to predict with great precision the harmonic (in the HHG) and energy (in the ATI) limits. We have extended substantially the conventional classical simulations, where the electric field is only dependent on time, including spatial nonhomogeneous fields and spatial and temporal synthesized fields. Spatial nonhomogeneous fields appear when metal nanosystems interact with strong and short laser pulses and temporal synthesized fields are routinely generated in attosecond laboratories around the world. Temporal and spatial synthesized fields have received special attention nowadays because they would allow to exceed considerably the conventional harmonic and electron energy frontiers. Classical simulations are an invaluable tool to explore exhaustively the parameters domain at a cheap computational cost, before massive quantum mechanical calculations, absolutely indispensable for detailed analysis, are performed.
Study on the comparison of antioxidant peptide (carnosine) level between CPKurobuta and using High Performance Liquid Chromatography (HPLC) Three Crossbred Pork (Large-White x Landrace x Duroc)
Creators: name: Jutamart Kongkapan And Tiranun Srikanchai
Publisher: name: Faculty of Agriculture
Year: 2020
Subjects: carnosine, antioxidant, CP Kurobuta, Longissimus dorsi, HPLC

description: Khon Kaen Agriculture Journal, 48, 6, 1396-1405
Infektionsrate von Osteosynthesematerial nach elektiv-orthopädischen und traumatologischen Indexoperationen
Creators: name: Kinzel, Sabrina
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 610 Medical sciences Medicine

description: 11 % der untersuchten Implantate zeigten ein signifikantes Bakterienwachstum in klinisch inapparenten Patienten. Als häufigste Mikroorganismen wurden Staphylokokken nachgewiesen. Diese stellen ebenfalls den häufigsten Erreger periprothetischer Infektionen dar. Es blieb weiterhin unklar, ob Patienten mit nachgewiesener Implantatkolonisation ein erhöhtes Risiko für PPI bei einer nachfolgenden TEP-Versorgung zeigen. Nichtsdestotrotz sollte die Tatsache der signifikant höheren Kolonisationsrate im Bereich des Kniegelenks bei einer geplanten Prothesenimplantation berücksichtigt werden.
Stroke survivors’ perceptions of participating in a high repetition arm training trial early after stroke
Creators: name: Hammerbeck, Ulrike
name: Hargreaves, Mary
name: Hollands, Kristen L.
name: Tyson, Sarah
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The study explored the acceptability of high repetition arm training as part of a randomised controlled trial, early after stroke, when fatigue levels and emotional strain are often high. 36 sub-acute stroke survivors (61 years+/-15) attended for assessment sessions at 3, 6, and 12 weeks after stroke. Individuals were randomised to receive 6 high repetition arm training sessions between 3 and 6 weeks (intervention) or the control group. Semi-structured interviews were conducted at trial completion. Interview transcripts were analysed through framework analysis conducted independently by 2 researchers. Stroke survivors participated despite high levels of fatigue because they hoped for personal benefit or to potentially benefit future patients. Benefits reported from participation included physical improvements, psychological benefit, improved understanding of their condition as well as a feeling of hope and distraction. The arm training at three weeks after stroke, aiming for 420 movement repetitions was not considered to be too intensive or too early, and most individuals felt lucky to have been, or would have preferred to be in the early training group. High repetition arm training early after stroke was acceptable to participants. Study participation was generally viewed as a positive experience, suggesting that early intervention may not only be physically beneficial but also psychologically.Implications for rehabilitationStroke survivors report that high repetition arm training early after stroke is acceptable.Participation in rehabilitation research early after stroke provides stroke survivors with hope and meaning despite the high prevalence of fatigue.Complex information needs to be repeated and provided in a number of formats early after stroke. Stroke survivors report that high repetition arm training early after stroke is acceptable. Participation in rehabilitation research early after stroke provides stroke survivors with hope and meaning despite the high prevalence of fatigue. Complex information needs to be repeated and provided in a number of formats early after stroke.
Metasurface Holographic Optical Traps for Ultracold Atoms
Creators: name: Huang, Xiaoyan
name: Yuan, Weijun
name: Holman, Aaron
name: Kwon, Minho
name: Masson, Stuart J.
name: Gutierrez-Jauregui, Ricardo
name: Asenjo-Garcia, Ana
name: Will, Sebastian
name: Yu, Nanfang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose metasurface holograms as a novel platform to generate optical trap arrays for cold atoms with high fidelity, efficiency, and thermal stability. We developed design and fabrication methodologies to create dielectric, phase-only metasurface holograms based on titanium dioxide. We experimentally demonstrated optical trap arrays of various geometries, including periodic and aperiodic configurations with dimensions ranging from 1D to 3D and the number of trap sites up to a few hundred. We characterized the performance of the holographic metasurfaces in terms of the positioning accuracy, size and intensity uniformity of the generated traps, and power handling capability of the dielectric metasurfaces. Our proposed platform has great potential for enabling fundamental studies of quantum many-body physics, and quantum simulation and computation tasks. The compact form factor, passive nature, good power handling capability, and scalability of generating high-quality, large-scale arrays also make the metasurface platform uniquely suitable for realizing field-deployable devices and systems based on cold atoms.
Cosmology: the search for twenty-four (or more) functions
Creators: name: Barrow, John D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We enumerate the 4(1+F)+2S independent arbitrary functions of space require to describe a general relativistic cosmology containing an arbitrary number of non-interacting fluid (F) and scalar fields (S). Results are also given for arbitrary space dimension and for higher-order gravity theories, where the number increases to 16+4F+2S. Both counts are subject to assumptions about whether the dark energy is a cosmological constant. A more detailed analysis is provided when global homogeneity is assumed and the functions become constants. This situation is also studied in the case where the flat and open universes have compact spatial topologies. This changes the relative generalities significantly and places new constraints on the types of expansion anisotropy that are permitted. The most general compact homogeneous universes containing Friedmann models are spatially flat and described by 8+4F+2S constants. Comparisons are made with the simple 6-parameter lambda-CDM model and physical interpretations provided for the parameters needed to describe the most general cosmological models.
description: 12 pages, no figs, typos corrected, extra discussion in Sec. V and in refs
Binary neutron star mergers in Einstein-scalar-Gauss-Bonnet gravity
Creators: name: East, William E.
name: Pretorius, Frans
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Binary neutron star mergers, which can lead to less massive black holes relative to other known astrophysical channels, have the potential to probe modifications to general relativity that arise at smaller curvature scales compared to more massive compact object binaries. As a representative example of this, here we study binary neutron star mergers in shift-symmetric Einstein-scalar-Gauss-Bonnet gravity using evolutions of the full, nonperturbative evolution equations. We find that the impact on the inspiral is small, even at large values of the modified gravity coupling (as expected, as neutron stars do not have scalar charge in this theory). However, postmerger there can be strong scalar effects, including radiation. When a black hole forms, it develops scalar charge, impacting the ringdown gravitational wave signal. In cases where a longer-lived remnant star persists postmerger, we find that the oscillations of the star source levels of scalar radiation similar to the black hole formation cases. In remnant stars, we further find that at coupling values comparable to the maximum value for which black hole solutions of the same mass exist, there is significant nonlinear enhancement in the scalar field, which if sufficiently large leads to a breakdown in the evolution, seemingly due to loss of hyperbolicity of the underlying equations.
description: 12 pages, 10 figures; revised to match PRD version
Transverse and lateral confinement effects on the oscillations of a free cylinder in a viscous flow
Creators: name: Gianorio, Luciano
name: D'Angelo, Maria Veronica
name: Cachile, Mario
name: Hulin, Jean-Pierre
name: Auradou, Harold
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The different types of instabilities of free cylinders (diameter $D$, length $L$) have been studied in a viscous flow (velocity $U$) between parallel vertical walls of horizontal width $W$ at a distance $H$: the influence of the confinement parameters $D/H$ and $L/W$ has been investigated. As $D/H$ increases, there is a transition from stable flow to oscillations transverse to the walls and then to a fluttering motion with oscillations of the angle of the axis with respect to the horizontal. The two types of oscillations may be superimposed in the transition domain. The frequency $f$ of the transverse oscillations is independent of the lateral confinement $L/W$ in the range: 0.055 \le L/W \le 0.94$ for a given cylinder velocity $V_{cx}$ and increases only weakly with $V_{cx}$. These results are accounted for by assuming a 2D local flow over the cylinder with a characteristic velocity independent of $L/W$ for a given $V_{cx}$ value. The experimental values of $f$ are also independent of the transverse confinement $D/H$. The frequency $f_f$ of the fluttering motion is significantly lower than $f$: $f_f$ is also nearly independent of the cylinder diameter and of the flow velocity but decreases significantly as $L/W$ increases. The fluttering instability is then rather a 3D phenomenon involving the full length of the cylinder and the clearance between its ends and the side walls.
An area law for entanglement from exponential decay of correlations
Creators: name: Brandao, Fernando G. S. L.
name: Horodecki, Michal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Area laws for entanglement in quantum many-body systems give useful information about their low-temperature behaviour and are tightly connected to the possibility of good numerical simulations. An intuition from quantum many-body physics suggests that an area law should hold whenever there is exponential decay of correlations in the system, a property found, for instance, in non-critical phases of matter. However, the existence of quantum data-hiding state--that is, states having very small correlations, yet a volume scaling of entanglement--was believed to be a serious obstruction to such an implication. Here we prove that notwithstanding the phenomenon of data hiding, one-dimensional quantum many-body states satisfying exponential decay of correlations always fulfil an area law. To obtain this result we combine several recent advances in quantum information theory, thus showing the usefulness of the field for addressing problems in other areas of physics.
description: 8 pages, 3 figures. Short version of arXiv:1206.2947 Nature Physics (2013)
Salome!! Sarah Bernhardt, Oscar Wilde, and the Drama of Celebrity
Creators: name: Marcus, Sharon
Publisher: name: Columbia University
Year: 2011
Subjects: French language in literature
Fame
Comparative literature
Theater

description: Oscar Wilde’s Salome, composed in French in 1891, represents both an episode in the history of celebrity and a dramatization of celebrity’s theatrical structure. The play first entered the orbit of stardom when Sarah Bernhardt, internationally hailed as the world’s greatest actress, agreed to play the title role in 1892; its author had long been a celebrity, known as much for his artfully crafted persona as for his published writings. Bernhardt, Wilde, and Salome, a play in which almost every character is both fan and idol, were all defined by the volatile conjunctions shared by theatricality and celebrity: the asymmetrical interdependence of actors and audiences, stars and acolytes, exhibition and attention, distance and proximity, absolutism and democracy, exemplarity and impudence, worship and desecration, and presence and representation.
Topological synchronisation or a simple attractor?
Creators: name: Caby, Theophile
name: Gianfelice, Michele
name: Saussol, Benoit
name: Vaienti, Sandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: A few recent papers introduced the concept of topological synchronisation. We refer in particular to \cite{TS}, where the theory was illustrated by means of a skew product system, coupling two logistic maps. In this case, we show that the topological synchronisation could be easily explained as the birth of an attractor for increasing values of the coupling strength and the mutual convergence of two marginal empirical measures. Numerical computations based on a careful analysis of the Lyapunov exponents suggest that the attractor supports an absolutely continuous physical measure (acpm). We finally show that for some unimodal maps such acpm exhibit a multifractal structure.
TV Editorials: A Last Whimper
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1988
Subjects: Television and literature
Mass media and public opinion
Editorials

description: We do not wish to let the death of television editorials go unnoticed. Quietly, they are slipping into the sea of television commercialism, with no markers at the site. With them hand-in-hand goes their partner, the editorial reply by opposing viewpoints, but they lived a useful if pedestrian life, and someone should speak a proper eulogy.
title: Für die Uebertragung der deutschen Erbkaiserwürde an das österreichische Kaiserhaus; [1849]
title: Votum des constitutionell-monarchischen Vereins zu Augsburg ; [Augsburg, den 12. Januar 1849]
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
Monojets and mono-photons from light higgsino pair production at LHC14
Creators: name: Baer, Howard
name: Mustafayev, Azar
name: Tata, Xerxes
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Naturalness arguments imply the existence of higgsinos lighter than 200-300 GeV. However, because these higgsinos are nearly mass degenerate, they release very little visible energy in their decays, and signals from electroweak higgsino pair production typically remain buried under Standard Model backgrounds. Moreover, gluinos, squarks and winos may plausibly lie beyond the reach of the LHC14, so that signals from naturalness-inspired supersymmetric models may well remain hidden via conventional searches. We examine instead prospects for detecting higgsino pair production via monojets or mono-photons from initial state radiation. We find typical signal-to-background rates at best at the 1 % level, leading to rather pessimistic conclusions regarding detectability via these channels.
description: 10 pages plus 4 .eps figures; updated version to conform with published version
The use of wearable sensors to assess and treat the upper extremity after stroke: a scoping review
Creators: name: Kim, Grace J.
name: Parnandi, Avinash
name: Eva, Sharon
name: Schambra, Heidi
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Plant Biology

description: To address the gap in the literature and clarify the expanding role of wearable sensor data in stroke rehabilitation, we summarized the methods for upper extremity (UE) sensor-based assessment and sensor-based treatment. The guideline outlined by the preferred reporting items for systematic reviews and meta-analysis extension for scoping reviews was used to complete this scoping review. Information pertaining to participant demographics, sensory information, data collection, data processing, data analysis, and study results were extracted from the studies for analysis and synthesis. We included 43 articles in the final review. We organized the results into assessment and treatment categories. The included articles used wearable sensors to identify UE functional motion, categorize motor impairment/activity limitation, and quantify real-world use. Wearable sensors were also used to augment UE training by triggering sensory cues or providing instructional feedback about the affected UE. Sensors have the potential to greatly expand assessment and treatment beyond traditional clinic-based approaches. This capability could support the quantification of rehabilitation dose, the nuanced assessment of impairment and activity limitation, the characterization of daily UE use patterns in real-world settings, and augment UE training adherence for home-based rehabilitation.IMPLICATIONS FOR REHABILITATIONSensor data have been used to assess UE functional motion, motor impairment/activity limitation, and real-world use.Sensor-assisted treatment approaches are emerging, and may be a promising tool to augment UE adherence in home-based rehabilitation.Wearable sensors may extend our ability to objectively assess UE motion beyond supervised clinical settings, and into home and community settings. Sensor data have been used to assess UE functional motion, motor impairment/activity limitation, and real-world use. Sensor-assisted treatment approaches are emerging, and may be a promising tool to augment UE adherence in home-based rehabilitation. Wearable sensors may extend our ability to objectively assess UE motion beyond supervised clinical settings, and into home and community settings.
Influence of additive fermented cassava pulp with residues from noodle factory on nutritive values, feed intake, and nutrient digestibility in beef cattle
Creators: name: Tanitpan Pongjongmit, Thitima Norrapoke
Publisher: name: Faculty of Agriculture
Year: 2020
Subjects: residues from noodle factory, cassava pulp, feed intake, nutrient digestibility

description: Khon Kaen Agriculture Journal, 48, 6, 1406-1413
Presentations of the webinar "Implementation of Data Analytics for a sustainable and climate-resilient Agriculture 4.0"
Creators: name: VitiGEOSS Partners
Publisher: name: Zenodo
Year: 2022

description: Presentations delivered during the webinar "Implementation of Data Analytics for a sustainable and climate-resilient Agriculture 4.0" celebrated on June 2022 as part of the European Green Week
description: The VitiGEOSS project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 869565.
Challenges in applying human factors approaches to health service design
Creators: name: JUN, Gyuchan Thomas
name: ALTUNA, Ander
name: WARD, James
name: BHAMRA, Ran
name: ROGERS, Stephen
name: DUTT, Amalin
name: SHAH, Priyal
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: A participatory systems approach is a fundamental characteristic of the human
factors and ergonomics discipline. However, the appropriate application of relevant
methods is challenging in healthcare, since there is very limited time for staff to participate and their knowledge on design methods is usually very limited. An action research was carried out in a health service design project commissioned by a local health service commissioner. The aim of this paper is to examine and discuss challenges in applying the participatory systems approach.
The Profession of the Author: Abstraction, Advertising, and Jane Eyre
Creators: name: Marcus, Sharon
Publisher: name: Columbia University
Year: 1995
Subjects: Abstraction in literature
Advertising in literature
Comparative literature
English literature

description: Since its publication in 1847, Jane Eyre has been read by its detractors and admirers as the portrayal of a willful female subject who claims her own identity. Readers have failed to note, however, that the most basic and encompassing marker of that identity, her name, tends to emerge when her will is most in abeyance. In this essay, I analyze abstraction through close readings of scenes of speech, writing, and advertising in Jane Eyre and through a consideration of Charlotte Bronte's dealings in the Victorian literary market. The concept of abstraction is crucial to understanding the relation of writing to female subjectivity in Jane Eyre and in Bronte's literary career because it mediates between apparently contradictory categories: embodiment and invisibility, self-effacement and self-advertisement, femininity and professional identity, fragmentation and wholeness, and profit and loss.
Quality of everyday rehabilitation in the home care – a question of relational coordination?
Creators: name: ALBERTSEN, K.
name: WIEGMAN, IM
name: LIMBORG, HJ
name: THÖRNFELDT, C
name: BJØRNER, J
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: Almost all municipalities in Denmark have within the latest years implemented a kind or everyday rehabilitation in the home care. The aim of this study was to explore how the relational coordination in the home care teams was related to the employee’s experience of job and quality of care. Analyses of qualitative and quantitative data from 5 municipalities indicate that if everyday rehabilitation is to succeed, it is crucial that the care workers perceive shared goals and knowledge, mutual respect and problem solving communication, particularly within their own professional group and toward the group leaders.
Universal quantum behaviors of interacting fermions in 1D traps: from few particles to the trap thermodynamic limit
Creators: name: Angelone, Adriano
name: Campostrini, Massimo
name: Vicari, Ettore
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the ground-state properties of trapped fermion systems described by the Hubbard model with an external confining potential. We discuss the universal behaviors of systems in different regimes: from few particles, i.e. in dilute regime, to the trap thermodynamic limit. The asymptotic trap-size (TS) dependence in the dilute regime (increasing the trap size l keeping the particle number N fixed) is described by a universal TS scaling controlled by the dilute fixed point associated with the metal-to-vacuum quantum transition. This scaling behavior is numerically checked by DMRG simulations of the one-dimensional (1D) Hubbard model. In particular, the particle density and its correlations show crossovers among different regimes: for strongly repulsive interactions they approach those of a spinless Fermi gas, for weak interactions those of a free Fermi gas, and for strongly attractive interactions they match those of a gas of hard-core bosonic molecules. The large-N behavior of systems at fixed N/l corresponds to a 1D trap thermodynamic limit. We address issues related to the accuracy of the local density approximation (LDA). We show that the particle density approaches its LDA in the large-l limit. When the trapped system is in the metallic phase, corrections at finite l are O(l^{-1}) and oscillating around the center of the trap. They become significantly larger at the boundary of the fermion cloud, where they get suppressed as O(l^{-1/3}) only. This anomalous behavior arises from the nontrivial scaling at the metal-to-vacuum transition occurring at the boundaries of the fermion cloud.
description: 20 pages
The bovine milk fat globule membrane: Liquid ordered domain formation and anticholesteremic effects during digestion
Creators: name: Tai, Patrick
name: Golding, Matt
name: Singh, Harjinder
name: Everett, David
Publisher: name: AgResearch
Year: 2023
Subjects: Nutritional science

description: The milk fat globule membrane (MFGM) has undergone a renaissance in nutritional sciences. Recent understanding of how heterogenous, lateral milk polar lipids assemblies, enriched with sphingomyelin and cholesterol, form a liquid-ordered (Lo) phase, call assumptions about milk fat digestion into question. Clinical studies on the anticholesteremic effect of milk polar lipids, fundamental research on the structure and properties of Lo domains, and hypotheses on the sphingomyelin and cholesterol interactions that lead to the establishment of Lo structures are critically reviewed. Whereas previous reviews delivered overviews on such topics, this review critically considers the interplay of structure, digestion, and composition.
Diversified Ruderman-Kittel-Kasuya-Yosida Interactions in a Nonsymmorphic Crystal
Creators: name: Zhang, Zhongyi
name: Qin, Shengshan
name: Fang, Chen
name: Hu, Jiangping
name: Zhang, Fu-chun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that there are diversified Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions between magnetic impurities, mediated by itinerant electrons, in a centrosymmetric crystal respecting a nonsymmorphic space group. We take the $P4/nmm$ space group as an example. We demonstrate that the different type of interactions, including the Heisenberg-type, the Dzyaloshinskii-Moriya (DM)-type, the Ising-type and the anisotropic interactions, can appear in accordance with the positions of the impurities in the real space. Their strengths strongly depend on the location of the itinerant electrons in the reciprocal space. The diversity stems from the position-dependent site groups and the momentum-dependent electronic structures guaranteed by the nonsymmorphic symmetries. Our study unveils the role of the nonsymmorphic symmetries in affecting magnetism, and suggests that the nonsymmorphic crystals can be promising platforms to design magnetic interactions.
description: 11pages, 5 figures
What do gravitational wave detectors say about polymer quantum effects?
Creators: name: Garcia-Chung, Angel
name: Carney, Matthew F.
name: Mertens, James B.
name: Parvizi, Aliasghar
name: Rastgoo, Saeed
name: Tavakoli, Yaser
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We compute the expected response of detector arms of gravitational wave observatories to polymerized gravitational waves. The mathematical and theoretical features of these waves were discussed in our previous work. In the present manuscript, we find both perturbative analytical, and full nonperturbative numerical solutions to the equations of motion of the detector arms using the method of geodesic deviations. These results show the modifications to both frequency and amplitude of the signal measured by the detector. Furthermore, we study the detectability of these signals in LISA by analyzing the modes in the frequency space.
description: 25 pages, 5 figures, v2: a few new comments added, matches the JCAP published version
Thermals in stratified regions of the ISM
Creators: name: Rodriguez-Gonzalez, Ary
name: Raga, Alejandro C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a model of a "thermal" (i.e., a hot bubble) rising within an exponentially stratified region of the ISM. This model includes terms representing the ram pressure braking and the entrainment of environmental gas into the thermal. We then calibrate the free parameters associated with these two terms through a comparison with 3D numerical simulations of a rising bubble. Finally, we apply our "thermal" model to the case of a hot bubble produced by a SN within the stratified ISM of the Galactic disk.
description: 14 pages, 5 figures
Experts Or Phrase Makers?
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1989
Subjects: Educational leadership--Moral and ethical aspects
Public opinion
Mass media

description: In a single week recently I was called by six different news organizations and asked to comment on a variety of matters relating to press issues: one radio station, one television network, a wire service, two newspapers and one journalism student from a different university. The subjects were: the demise of the Los Angeles Herald Examiner; television reenactments, docudramas and simulations; the Janet Malcolm-Joseph McGinniss affair (still) and campaign commercials. It was not an unusual week. Ever since I became dean of the Journalism School in September, 1988, everyone, it seems, wants my opinion on everything. This comes as a jolt to someone who grew up in a time when no one listened to children, became an adult when no one listened to women, and then entered this business where people don't listen to anyone except their boss if they want to get ahead.
Standardized work processes: the role of programmed and lateral mechanisms of coordination
Creators: name: PRÆTORIUS, Thim
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: This paper finds that standardized work processes should be considered as a bundle of coordination mechanisms—plans and rules, objects, routines, roles and
proximity—rather than a coordination mechanism of its own. The bundle builds the
accountability, predictability and common understanding needed to coordinate. This
implies that the coordination potential rests on those underlying coordination mechanisms, thereby lending theoretical insights to the traditional view on standardized work processes. The research builds on an in-depth, qualitative analysis of hospital care pathways.
Pepsin-induced coagulation of casein micelles: Effect of whey proteins and heat treatment
Creators: name: Yang, Mengxiao
name: Ye, Aiqian
name: Yang, Zhi
name: Everett, David
name: Gilbert, Elliot Paul
name: Singh, Harjinder
Publisher: name: AgResearch
Year: 2023
Subjects: Food sciences

description: The effect of whey proteins and heat treatment (90 °C, 5 min) on pepsin-induced hydrolysis of κ-casein, and subsequent coagulation of casein micelles, was investigated at pH 6.3 and 6.0 using reverse-phase HPLC, oscillatory rheology, and confocal laser scanning microscopy. Whey proteins did not affect the hydrolysis of κ-casein but retarded the coagulation process. Heat treatment did not affect the hydrolysis kinetics in whey protein (WP)-free samples, but slightly impaired the hydrolysis rate in WP-containing samples. The coagulation process of WP-free samples was little affected by heat-treatment. However, compared with unheated WP-contained sample at the same pH, the coagulation process of the heated sample was retarded at pH 6.3 but enhanced at pH 6.0. The curd in heated samples with smaller pores had higher water holding capacity. This knowledge provides further understanding on the role of whey proteins and heat treatment on the coagulation mechanisms of milk under gastric conditions.
Scandal Women: Cut the Hypocrisy
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1998
Subjects: Women employees
Political corruption
Women--Political activity--Public opinion
Sex scandals

description: The serious working women I talk to agree. Kathleen Willey is the last straw. We're mad as hell, and no one is saying what we are saying to each other. We are outraged and enraged by the entire cast of characters in the White House scandal, from the apologists to the pundits, but especially all of the supposed president's women headlined in the Clinton sex scandal, those claiming sexual harassment and those consenting adults who invited sexual engagement and then exploited it.
Work environment, Lean and agriculture
Creators: name: ANDERSSON, Karin
name: EKLUND, Jörgen
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: Lean has become the predominant management concept in industry, but its effect on the work environment is debated. Lean has now reached farms and garden
nurseries. This paper aims to identify consequences for the physical and psychosocial work environment when Lean was applied in micro-businesses in the agricultural sector. Observations, a questionnaire and interviews were used as methods. It was concluded that the psychosocial work environment became more structured and less stressful. The physical work environment was partly improved by less transportation on the farm. However, consideration of the physical work environment was insufficient.
Lessons from the Corridors of College Success Initiative: An Introduction
Creators: name: Karp, Melinda Jane Mechur
name: Lundy-Wagner, Valerie
Publisher: name: Columbia University
Year: 2015
Subjects: Community colleges--Research
Educational change
Community college students--Education
Community colleges
Educational sociology
Education--Sociological aspects

description: Collective impact is a new place-based model of educational and social intervention that aims to shift responsibility for improvement in outcomes from individual organizations to entire systems that affect the lives of people in a particular location.

CCRC’s Corridors of College Success Series provides insights into collective impact efforts in the postsecondary sector, drawing on qualitative research in five communities participating in the Ford Foundation’s Corridors of College Success initiative. The Ford Foundation supported these communities as they planned, organized, and applied a collective impact or place-based approach in order to improve pathways into and through college and into family-sustaining careers for low-income and first-generation students and other vulnerable populations.

This brief provides an introduction to the collective impact model and the Corridors of College Success initiative. Subsequent briefs in the series will focus on key areas of concern for practitioners, policymakers, funders, and researchers engaging in place-based collective work—including implementation issues, “backbone” organizations, postsecondary engagement in collective impact, funders and funding, and community voice.
Massive Parallelization of STED Nanoscopy Using Optical Lattices
Creators: name: Yang, Bin
name: Przybilla, Frédéric
name: Mestre, Michael
name: Trebbia, Jean-Baptiste
name: Lounis, Brahim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recent developments in stimulated emission depletion (STED) microscopy achieved nanometer scale resolution and showed great potential in live cell imaging. Yet, STED nanoscopy techniques are based on single point-scanning. This constitutes a drawback for wide field imaging, since the gain in spatial resolution requires dense pixelation and hence long recording times. Here we achieve massive parallelization of STED nanoscopy using wide-field excitation together with well-designed optical lattices for depletion and a fast camera for detection. Acquisition of large field of view super-resolved images requires scanning over a single unit cell of the optical lattice which can be as small as 290 nm*290nm. Interference STED (In-STED) images of 2.9 μm* 2.9 μm with resolution down to 70 nm are obtained at 12.5 frames per second. The development of this technique opens many prospects for fast wide-field nanoscopy.
Operationalization, measurement, and health indicators of sedentary behavior in individuals with cerebral palsy: a scoping review
Creators: name: Xiong, Julia
name: Reedman, Sarah E.
name: Kho, Michelle E.
name: Timmons, Brian W.
name: Verschuren, Olaf
name: Gorter, Jan Willem
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: To explore the operationalization and measurement of sedentary behavior (SB) in individuals with cerebral palsy (CP). We searched five databases from 2011 to 2020 for primary studies of experimental, qualitative, longitudinal, or observational designs measuring SB or postures typically characterized as sedentary (sitting, reclining, lying). We screened 1112 citations and selected 47 studies. SB was operationalized through muscle activation, energy expenditure or oxygen consumption in typically sedentary postures (n = 9), and through thresholds and postures used by accelerometers, activity monitors, and a questionnaire to measure time spent in SB (n = 25). Seven out of the eight studies that measured energy expenditure found ≤1.5 metabolic equivalents of task (METs) for sitting and lying. While different accelerometer thresholds were used to measure SB, the behavior (SB) was consistently operationalized as sitting and lying. Little consistency existed in the subpopulation, instruments and cut-points for studies on validity or reliability of tools for measuring SB (n = 19). Sitting and lying are considered sedentary postures, which is defined as ≤1.5 METs in individuals with CP. There is variability in the tools used to measure SB in individuals with CP. Therefore, consensus on the definition and reporting of SB is needed.Implications for rehabilitationAlthough sedentary behavior (SB) is increased in individuals with cerebral palsy (CP) compared to the typically developing population, there is no standard definition for SB for these individuals; this makes it difficult to synthesize data across studies.Sitting and lying are ≤1.5 METs in individuals with CP, suggesting we only need to measure posture to show change in SB.The commonly used accelerometer cut-point in the typically developing population of ≤100 counts per minute generally has excellent reliability across multiple devices in ambulatory children with CP. Although sedentary behavior (SB) is increased in individuals with cerebral palsy (CP) compared to the typically developing population, there is no standard definition for SB for these individuals; this makes it difficult to synthesize data across studies. Sitting and lying are ≤1.5 METs in individuals with CP, suggesting we only need to measure posture to show change in SB. The commonly used accelerometer cut-point in the typically developing population of ≤100 counts per minute generally has excellent reliability across multiple devices in ambulatory children with CP.
Protocols for Rydberg entangling gates featuring robustness against quasi-static errors
Creators: name: Fromonteil, Charles
name: Bluvstein, Dolev
name: Pichler, Hannes
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We introduce a novel family of protocols for entangling gates for neutral atom qubits based on the Rydberg blockade mechanism. These protocols realize controlled-phase gates through a series of global laser pulses that are on resonance with the Rydberg excitation frequency. We analyze these protocols with respect to their robustness against calibration errors of the Rabi frequency or shot-to-shot laser intensity fluctuations, and show that they display robustness in various fidelity measures. In addition, we discuss adaptations of these protocols in order to make them robust to atomic-motion-induced Doppler shifts as well.
Anisotropic inflation in non-minimal kinetic coupling model
Creators: name: Goodarzi, Parviz
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study anisotropic inflation in non-minimal derivative coupling model where the scalar field non-minimally coupled to the $U(1)$ gauge fields and derivative of the scalar field non-minimally coupled to the Einstein tensor. Within the framework we find power-law anisotropic solutions in this model when both the inflaton potential and the gauge kinetic function are power-law type in the high friction regime. We show the ratio of anisotropy to the expansion rate is nearly constant, small and proportional to the slow-roll parameters of the theory. As a demonstration, we consider numerically calculation of the model to show that the behavior of anisotropy by changing the parameters of the model for quadratic inflationary potential. There is anisotropic attractor solution for a wide range of values of the model parameters. We show both numerically and analytically that there are two phases of inflation, similar to those an anisotropic inflation in minimal coupling model, isotropic and anisotropic phase. We can change the number of e-folds corresponding to each phase of slow roll inflation by changing the gauge coupling constant or non-minimal derivative coupling constant. There are the best agreement with the numerically solutions and analytically solutions in this investigation.
description: 25 pages, 13 figures
Climate services for vineyard adaptation
Creators: name: VitiGEOSS Partners
Publisher: name: Zenodo
Year: 2023

description: Presentation delivered during the VitiGEOSS webinar "Climate services for vineyard adaptation" taking place on March 2023
description: The VitiGEOSS project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 869565.