cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analytical approach to chiral active systems: suppressed phase separation of interacting Brownian circle swimmers
Creators: name: Bickmann, Jens
name: Bröker, Stephan
name: Jeggle, Julian
name: Wittkowski, Raphael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We consider chirality in active systems by exemplarily studying the phase behavior of planar systems of interacting Brownian circle swimmers with a spherical shape. Continuing previous work presented in [G.-J. Liao, S. H. L. Klapp, Soft Matter, 2018, 14, 7873-7882], we derive a predictive field theory that is able to describe the collective dynamics of circle swimmers. The theory yields a mapping between circle swimmers and noncircling active Brownian particles and predicts that the angular propulsion of the particles leads to a suppression of their motility-induced phase separation, being in line with previous simulation results. In addition, the theory provides analytical expressions for the spinodal corresponding to the onset of motility-induced phase separation and the associated critical point as well as for their dependence on the angular propulsion of the circle swimmers. We confirm our findings by Brownian dynamics simulations and an analysis of the collective dynamics using a weighted graph-theoretical network. The agreement between results from theory and simulation is found to be good.
description: 10 pages, 3 figures
La spiritualité, une ressource aussi pour les soignants
Creators: name: Badoux Lépine, Alice
name: Schmidt-Valley, Déborah
Publisher: name: Unknown
Year: 0
Subjects: subject: spiritualité
subject: soignant
subject: soins palliatifs

description: Cette recherche pose la question de la spiritualité comme ressource pour les infirmiers travaillant en soins palliatifs. A l’hôpital, la spiritualité est évoquée dans les recueils de données mais ell est rarement prise en compte par les soignants. Par contre, dans les soins palliatifs, elle est plus présente et l’équipe l’inclut dans sa prise en charge. Mais dès qu’il s’agit de la spiritualité des soignants, le sujet devient tabou. Par peur du prosélytisme ou par souci de laïcité, elle a été complètement écartée des milieux de soins. Les données recueillies à l’aide d’entretiens auprès de trois infirmiers travaillant en soins palliatifs ont permis d’élaborer le cadre de référence. Celui-ci est constitué de six concepts : souffrance/burnout, ressources, spiritualité, cheminement et questionnement, clivage, authenticité. Ce travail met en évidence les ressources utilisées par les soignants interviewés et fait ressortir la place de la spiritualité parmi celles-ci. Il vise à faire prendre conscience aux professionnels de la santé, et en particulier aux infirmiers travaillant en soins palliatifs, que de s’intéresser à sa propre spiritualité offre une ressource non négligeable qui permet de donner du sens à leur travail et d’accompagner de façon plus authentique les patients.
Diffusion of topological charge in lattice QCD simulations
Creators: name: McGlynn, Greg
name: Mawhinney, Robert D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the autocorrelations of observables constructed from the topological charge density, such as the topological charge on a time slice or in a subvolume, using a series of hybrid Monte Carlo simulations of pure SU(3) gauge theory with both periodic and open boundary conditions. We show that the autocorrelation functions of these observables obey a simple diffusion equation and we measure the diffusion coefficient, finding that it scales like the square of the lattice spacing. We use this result and measurements of the rate of tunneling between topological charge sectors to calculate the scaling behavior of the autocorrelation times of these observables on periodic and open lattices. There is a characteristic lattice spacing at which open boundary conditions become worthwhile for reducing autocorrelations and we show how this lattice spacing is related to the diffusion coefficient, the tunneling rate, and the lattice Euclidean time extent.
description: 36 pages, 14 figures
$\mathbb{C}$-elliptic operators and $\mathrm{W}^{1,1}$-regularity for linear growth functionals
Creators: name: Wozniak, Piotr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we prove the higher Sobolev regularity of minimisers for convex integral functionals evaluated on linear differential operators of order one. This intends to generalise the already existing theory for the cases of full and symmetric gradients to the entire class of $\mathbb{C}$-elliptic operators therein including the trace-free symmetric gradient for dimension $n \geq 3$.
description: Minor changes, typos fixed in the published version
Représentations du rôle éducatif des soignants auprès de l'adolescent hospitalisé en milieu psychiatrique
Creators: name: Fafa, Naïma
Publisher: name: Unknown
Year: 0
Subjects: subject: adolescent
subject: soins infirmiers en psychiatrie
subject: hospitalisation
subject: rôle infirmier
subject: éducation du patient
subject: travail en équipe
subject: pluridisciplinarité
subject: formation infirmière

description: De type qualitatif et exploratoire, cette recherche a pour but d’explorer, dans un premier temps, les représentations qu’ont les soignants de leur rôle éducatif exercé en milieu psychiatrique auprès d’adolescents. Dans un deuxième temps, l'auteur propose des pistes de réflexion pour que les soignants puissent optimiser l’exercice de ce rôle éducatif. Le cadre de référence s’est construit à partir d’une approche théorique de l’adolescence, de l’éducation et du corps professionnel soignant en lien avec l’éducation. Principaux résultats obtenus : importance du rôle éducatif exercé par les soignants en milieu psychiatrique mais aussi difficulté de l’exercer de manière concertée au niveau de l’équipe, parfois aussi la difficulté d’assumer ce rôle de manière autonome. La formation initiale en soins infirmiers, ainsi que les cours et formations proposés au niveau institutionnel sont très pauvres, voire absents dans le domaine de l’éducation à l’adolescent. Ces difficultés peuvent engendrer une prise en charge éducative de l’adolescent par le soignant et l’équipe qui peut ne pas être optimale, et voire même destructurante pour l’adolescent. Les propositions infirmières élaborées à la fin de ce travail portent principalement sur l’importance pour le soignant d’être à la fois modèle et à la fois sujet confrontant, sur la valeur d’un projet éducatif cohérent et concerté au sein d’une équipe interdisciplinaire et sur la nécessité de développer la formation des soignants en lien avec l’éducation de l’adolescent.
Role of the $ρ(1450)$ in low-energy observables from an analysis in the meson dominance approach
Creators: name: Ávalos, Gustavo
name: Rojas, Antonio
name: Sánchez, Marxil
name: Toledo, Genaro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The $ρ(1450)$ vector meson ($ρ^\prime$) is becoming increasingly important to properly describe precision observables. We analyse a set of decay modes and cross sections, in the low-energy regime, to determine the role played by this meson. This is done through the extraction of the parameters for its description, in the context of the vector meson dominance model and its effective hadronic interactions, involving the low mass lying hadrons ($ρ$, $ω$ and $π$). In a first step, we determine the parameters of the model from ten decay modes which are insensitive to the $ρ^\prime$. Then, we consider the $ω\rightarrow 3π$ decay and exhibit the need to extend the description, by incorporating the $ρ^\prime$ and a contact term as prescribed by the Wess-Zumino-Witten anomaly. In a second step, we incorporate the data from the $e^+e^- \rightarrow 3π$ cross section (as measured by SND, CMD2, BABAR and BESIII) and then the $e^+e^- \rightarrow π^0 π^0 γ$ data (as measured by SND and CDM2) to further restrict the $ρ^\prime$ parameters validity region. As an application of the results, we compute the $e^+e^- \rightarrow 4π$ cross section for the so-called omega channel, measured by BABAR, and find a good description of the data considering the parameters found. As a byproduct, the coupling between $ρ$, $ω$ and $π$ ($g_{ρωπ}= 11.314 \pm 0.383$ GeV$^{-1}$) is found to be consistent with all the relevant observables, upon the inclusion of the $ρ^\prime$ and the contact term.
description: 26 pages, 14 figures. Text revisited and discussion extended. Format for figures and tables adjusted. Accepted for publication in PRD
title: Violence conjugale
title: accompagnement à domicile des nouvelles mères violentées au cours de leurs grossesses
titleType: Subtitle
Creators: name: Nzikou, Gaëlle
Publisher: name: Unknown
Year: 0
Subjects: subject: grossesse
subject: violence conjugale
subject: soins à domicile
subject: infirmière

description: La violence conjugale est un problème de santé publique présent dans toutes les couches de la société, dans toutes les cultures, dans tous les pays et sans distinction de religion. La femme enceinte y est malheureusement aussi touchée. Dans le suivi postpartum, l'infirmière est mise en présence de situations de soins, dont l'accompagnement à domicile peut être éprouvant . Cette recherche est une étude exploratoire de type qualitatif et elle a l'es intentions d'explorer les différents moyens personnels et professionnels que développent les infirmières dans des rencontres avec des femmes victimes de violences conjugales.
Toric Kato manifolds
Creators: name: Istrati, Nicolina
name: Otiman, Alexandra
name: Pontecorvo, Massimiliano
name: Ruggiero, Matteo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We introduce and study a special class of Kato manifolds, which we call toric Kato manifolds. Their construction stems from toric geometry, as their universal covers are open subsets of toric algebraic varieties of non-finite type. This generalizes previous constructions of Tsuchihashi and Oda, and in complex dimension 2, retrieves the properly blown-up Inoue surfaces. We study the topological and analytical properties of toric Kato manifolds and link certain invariants to natural combinatorial data coming from the toric construction. Moreover, we produce families of flat degenerations of any toric Kato manifold, which serve as an essential tool in computing their Hodge numbers. In the last part, we study the Hermitian geometry of Kato manifolds. We give a characterization result for the existence of locally conformally Kähler metrics on any Kato manifold. Finally, we prove that no Kato manifold carries balanced metrics and that a large class of toric Kato manifolds of complex dimension $\geq 3$ do not support pluriclosed metrics.
description: final version
A Ty1 cell-type-specific regulatory sequence is a recognition element for a constitutive binding factor.
Creators: name: Company, M
name: Errede, B
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: Ty transposable-element insertion mutations of Saccharomyces cerevisiae can cause cell-type-dependent activation of adjacent-gene expression. Several cis-acting regulatory regions within Ty1 are responsible for the effect of Ty1 on adjacent-gene expression. One of these is the block II sequence that was defined by its homology to mammalian enhancers and to the yeast a1-alpha 2 control site. Tandem copies of a 57-base-pair region encompassing block II caused an additive increase in expression of the CYC7 reporter gene in the absence of other Ty1 sequences. The activation of gene expression by the multiple repeats was abolished in a/alpha diploid cells. A specific complex between a constitutive factor in whole-cell extracts and the DNA regulatory element was observed. The protein-binding site for the constitutive factor coincided with the block II element. Base-pair substitutions within the binding site abolished the ability of the block II element to function as a component of the Ty1 activator and to form the factor-DNA complex. The correlation between complex formation and reporter gene expression indicates that factor binding to the cis-acting element is essential for this element to function as a component of the Ty1 activator.
Constitutive transcription of yeast ribosomal protein gene TCM1 is promoted by uncommon cis- and trans-acting elements.
Creators: name: Hamil, K G
name: Fried, H M
name: Nam, H G
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The DNA sequence UAST (TCGTTTTGTACGTTTTTCA) was found to mediate transcription of yeast ribosomal protein gene TCM1. UAST was defined as a transcriptional activator on the basis of loss of transcription accompanying deletions of all or part of UAST, orientation-independent restoration of transcription promoted by a synthetic UAST oligomer inserted either into TCM1 or into the yeast CYC1 gene lacking its transcriptional activation region, and diminished transcription following nucleotide alterations in UAST. UAST bound in vitro to a protein denoted TAF (TCM1 activation factor); TAF was concluded to be a transcriptional activator protein because nucleotide alterations in UAST that diminished transcription in vivo also diminished TAF binding in vitro. The sequence of UAST bore no obvious resemblance to UASrpg, the principal cis-acting element common to most yeast ribosomal protein genes. Likewise, TAF was distinguished from the UASrpg-binding protein TUF, since (i) TAF and TUF were chromatographically separable, (ii) binding of either TAF or TUF to its corresponding UAS was unaffected by an excess of UASrpg or UAST DNA, respectively, and (iii) photochemical cross-linking experiments showed that TAF was a protein of 147 kilodaltons (kDa), while TUF was detected as an approximately 120-kDa polypeptide, consistent with its known size. Cross-linking experiments also revealed that both UAST and UASrpg bound a second heretofore unobserved 82-kDa protein; binding of this additional protein appeared to require binding of TAF or TUF. On the basis of the biochemical characterization of TAF and a lack of sequence similarity between UAST and UASrpg, we suggest that transcription of TCM1 is mediated by a cis-acting sequence and at least one trans-acting factor different from the elements which promote transcription of most other ribosomal protein genes. A second trans-acting factor may be shared by TCM1 and other ribosomal protein genes; this factor could mediate coordinate regulation of these genes.
title: Au-dela des apparences
title: le vécu émotionnels des infirmières et infirmiers en soins palliatifs
titleType: Subtitle
Creators: name: Reymond, Anne
Publisher: name: Unknown
Year: 0
Subjects: subject: infirmière
subject: soins palliatifs
subject: émotion
subject: relation soignant-soigné

description: Cette recherche qualitative de type exploratoire porte sur le vécu émotionnel des infirmières et des infirmiers en unité de soins palliatifs, dans une perspective phénoménologique. Les outils d’investigation choisis dans une logique d’étude qualitative sont l’entrevue exploratoire et l’entretien semi-structuré. Les résultats de l’étude démontrent le vécu émotionnel intense et varié des personnes interviewées. Les normes émotionnelles instituées à l’hôpital comme au sein de la société influencent considérablement l’expression des émotions chez les soignants. Les infirmières et les infirmiers peuvent également être amenés à gérer leurs émotions à travers la mise en place de stratégies défensives, qui les empêchent de vivre leurs émotions et de rencontrer le malade en fin de vie au coeur de son intimité. Finalement, ces résultats permettent de s’interroger sur l’authenticité dans la relation soignant-soigné et les répercussions de ce contrôle émotionnel sur les soignants. Le vécu émotionnel des infirmières et des infirmiers en unité de soins palliatifs touche à un large champ de thèmes ou problématiques qui ne sont de loin pas tous traités de manière exhaustive dans cette étude. Au terme de ce travail des pistes de réflexion sont proposées qui pourraient constituer la base de nouvelles recherches. Le jury a relevé la rigueur méthodologique ainsi que la posture et le langage professionnels.
Extensive movement of LINES ONE sequences in beta-globin loci of Mus caroli and Mus domesticus.
Creators: name: Comer, M B
name: Hutchison, C A
name: Edgell, M H
name: Hardies, S C
name: Funk, F D
name: Casavant, N C
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: LINES ONE (L1) is a family of movable DNA sequences found in mammals. To measure the rate of their movement, we have compared the positions of L1 elements within homologous genetic loci that are separated by known divergence times. Two models that predict different outcomes of this analysis have been proposed for the behavior of L1 sequences. (i) Previous theoretical studies of concerted evolution in L1 have indicated that the majority of the 100,000 extant L1 elements may have inserted as recently as within the last 3 million years. (ii) Gene conversion has been proposed as an alternative to a history of prolific recent insertions. To distinguish between these two models, we cloned and characterized two embryonic beta-globin haplotypes from Mus caroli and compared them with those of M. domesticus. In 9 of 10 instances, we observed an L1 element to be present in one chromosome and absent at the same site in a homologous chromosome. This frequency is quantitatively consistent with the known rate of concerted evolution. Therefore, we conclude that gene conversion is not required for concerted evolution of the L1 family in the mouse. Furthermore, we show that the extensive movement of L1 sequences contributes to restriction fragment length polymorphism. L1 insertions may be the predominant cause of restriction fragment length polymorphisms in closely related haplotypes.
Traffic Engineering IV TREN 4/0
Creators: name: Ngobeni, Thabo Stephen
Publisher: name: Walter Sisulu University
Year: 2022
Subjects: Civil engineering not elsewhere classified
Transport engineering

description: Subject : Traffic Engineering IV Subject code : Tren4/0 Qualification : B.Tech Engineering: Civil (Transportation) Examiners : Mr Thabo Stephen Ngobeni Moderator : Mr D McQuirk Date : July 2019
(:unas) unassigned
Creators: name: (:Unkn) Unknown
Publisher: name: Universita' degli Studi di Salerno
Year: 2024

description: L’articolo ricostruisce la genesi del romanzo La Spiaggia di Cesare Pavese attraverso lo studio fi lologico del manoscritto e di altri corpora, conser vati presso il Centro Studi “Gozzano-Pavese” di Torino. Grazie all’analisi delle varianti d’autore, si avanzano per la prima volta nuove ipotesi inter pretative a partire dal titolo provvisorio, «Il cer chio del gioco», e da una copia del romanzo con dedica autografa a Mario Sturani.
description: The article traces the genesis of the novel La Spiaggia by Cesare Pavese through the philologi cal study of the manuscript and other corpora at the Centro Studi “Gozzano-Pavese” in Turin, un published until today. New theories about the novel interpretation are advanced starting from the original title, «Il cerchio del gioco», and from a copy of the novel with an original handwritten inscription to Mario Sturani.
On the experimental verification of the uncertainty principle of position and momentum
Creators: name: Schürmann, Thomas
name: Hoffmann, Ingo
name: Görlich, Winfrid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Historically, Kennard was the first to choose the standard deviation as a quantitative measure of uncertainty, and neither he nor Heisenberg explicitly explained why this choice should be appropriate from the experimental physical point of view. If a particle is prepared by a single slit of spatial width $Δx$, it has been shown that a finite standard deviation $σ_p<\infty$ can only be ensured if the wave-function is zero at the edge of $Δx$, otherwise it does not exist [8]. Under this circumstances the corresponding sharp inequality is $σ_p Δx\geq π\hbar$. This bound will be reconsidered from the mathematical point of view in terms of a variational problem in Hilbert space and will furthermore be tested in a 4f-single slit diffraction experiment of a laser beam. Our results will be compared with a laser-experiment recently given by Fernández-Guasti (2022) [9].
description: 7 pages, 4 figures
Rites funéraires et pratiques soignantes
Creators: name: Fahy, Pascaline
Publisher: name: Unknown
Year: 0
Subjects: subject: rite funéraire
subject: rôle infirmier
subject: accompagnement
subject: famille
subject: hôpital

description: Cette recherche a pour but d’explorer, à travers une démarche itérative, la place du rituel funéraire en milieu hospitalier et le rôle infirmier dans l’accompagnement des familles endeuillées. A l’intérieur de cette étude, deux concepts principaux sont développés : le lien entre rituel et deuil et la posture infirmière de l’ouverture sur le monde. A partir des entretiens, les résultats de la recherche mettent en évidence plusieurs aspects de l’accompagnement des proches en milieu hospitalier pouvant être développés afin de répondre de manière optimale aux besoins spécifiques des familles venant de perdre quelqu’un. Le jury a relevé l’intérêt de l’analyse qui débouche sur des propositions créatives.
Neuropathic Pain Associated With First Metatarsophalangeal Joint Osteoarthritis: Frequency and Associated Factors
Creators: name: Menz, Hylton
name: Allan, Jamie
name: Buldt, Andrew
name: Landorf, Karl
name: Cicuttini, FM
name: Roddy, E
name: Munteanu, Shannon
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 4201
subject: Allied health and rehabilitation science

description: Objective: To determine whether neuropathic pain is a feature of first metatarsophalangeal (MTP) joint osteoarthritis (OA). Methods: A total of 98 participants (mean ± SD age 57.4 ± 10.3 years) with symptomatic radiographic first MTP joint OA completed the PainDETECT questionnaire (PD-Q), which has 9 questions regarding the intensity and quality of pain. The likelihood of neuropathic pain was determined using established PD-Q cutoff points. Participants with unlikely neuropathic pain were then compared to those with possible/likely neuropathic pain in relation to age, sex, general health (Short Form 12 [SF-12] health survey), psychological well-being (Depression, Anxiety and Stress Scale), pain characteristics (self-efficacy, duration, and severity), foot health (Foot Health Status Questionnaire [FHSQ]), first MTP dorsiflexion range of motion, and radiographic severity. Effect sizes (Cohen's d coefficient) were also calculated. Results: A total of 30 (31%) participants had possible/likely neuropathic pain (19 possible [19.4%], 11 likely [11.2%]). The most common neuropathic symptoms were sensitivity to pressure (56%), sudden pain attacks/electric shocks (36%) and burning (24%). Compared to those with unlikely neuropathic pain, those with possible/likely neuropathic pain were significantly older (d = 0.59, P = 0.010), had worse SF-12 physical scores (d = 1.10, P < 0.001), pain self-efficacy scores (d = 0.98, P < 0.001), FHSQ pain scores (d = 0.98, P < 0.001), and FHSQ function scores (d = 0.82, P < 0.001), and had higher pain severity at rest (d = 1.01, P < 0.001). Conclusion: A significant proportion of individuals with first MTP joint OA report symptoms suggestive of neuropathic pain, which may partly explain the suboptimal responses to commonly used treatments for this condition. Screening for neuropathic pain may be useful in the selection of targeted interventions and may improve clinical outcomes. (Figure presented.).
Superfluid-like spin transport in the dynamic states of easy-axis magnets
Creators: name: Yun, Jongpil
name: Kim, Se Kwon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The existing proposals for superfluid-like spin transport have been based on easy-plane magnets where the U(1) spin-rotational symmetry is spontaneously broken in equilibrium, and this has been limiting material choices for realizing superfluid-like spin transport to restricted class of magnets. In this work, we lift this limitation by showing that superfluid-like spin transport can also be realized based on easy-axis magnets, where the U(1) spin-rotational symmetry is intact in equilibrium but can be broken in non-equilibrium. Specifically, we find the condition to engender a non-equilibrium easy-cone state by applying a spin torque to easy-axis magnets, which dynamically induces the spontaneous breaking of the U(1) spin-rotational symmetry and thereby can support superfluid-like spin transport. By exploiting this dynamic easy-cone state, we show theoretically that superfluid-like spin transport can be achieved in easy-axis magnets under suitable conditions and confirmed the prediction by micromagnetic simulations. We envision that our work broadens material library for realizing superfluid-like spin transport, showing the potential utility of dynamic states of magnets as venue to look for spin-transport phenomena that do not occur in static magnetic backgrounds.
description: 7 pages and 2 figures
On Reconstruction of Binary Images by Efficient Sample-based Parameterization in Applications for Electrical Impedance Tomography
Creators: name: Arbic, Paul R.
name: Bukshtynov, Vladislav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: An efficient computational approach for optimal reconstruction of binary-type images suitable for models in various applications including biomedical imaging is developed and validated. The methodology includes derivative-free optimization supported by a set of sample solutions with customized geometry generated synthetically. The reduced dimensional control space is organized based on contributions from individual samples and the efficient parameterization obtained from the description of the samples' geometry. The entire framework has an easy-to-follow design due to a nominal number of tuning parameters which makes the approach simple for practical implementation in various settings, as well as for adjusting it to new models and enhancing the performance. High efficiency in computational time is achieved through applying the coordinate descent method to work with individual controls in the predefined custom order. This technique is shown to outperform commonly used gradient-based and other derivative-free methods with applied PCA-based control space reduction in terms of both qualities of binary images and stability of obtained solutions when noise is present in the measurement data. The performance of the complete computational framework is tested in applications to 2D inverse problems of detecting inclusions or defective regions by the electrical impedance tomography (EIT). The results demonstrate the efficient performance of the new method and its high potential for improving the overall quality of the EIT-based procedures including biomedical applications.
description: 23 pages, 10 figures
Joint estimation of phase and phase diffusion for quantum metrology
Creators: name: Vidrighin, Mihai D.
name: Donati, Gaia
name: Genoni, Marco G.
name: Jin, Xian-Min
name: Kolthammer, W. Steven
name: Kim, M. S.
name: Datta, Animesh
name: Barbieri, Marco
name: Walmsley, Ian A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Phase estimation, at the heart of many quantum metrology and communication schemes, can be strongly affected by noise, whose amplitude may not be known, or might be subject to drift. Here, we investigate the joint estimation of a phase shift and the amplitude of phase diffusion, at the quantum limit. For several relevant instances, this multiparameter estimation problem can be effectively reshaped as a two-dimensional Hilbert space model, encompassing the description of an interferometer phase probed with relevant quantum states -- split single-photons, coherent states or N00N states. For these cases, we obtain a trade-off bound on the statistical variances for the joint estimation of phase and phase diffusion, as well as optimum measurement schemes. We use this bound to quantify the effectiveness of an actual experimental setup for joint parameter estimation for polarimetry. We conclude by discussing the form of the trade-off relations for more general states and measurements.
description: Published in Nature Communications. Supplementary Information available at http://www.nature.com/ncomms/2014/140404/ncomms4532/extref/ncomms4532-s1.pdf
Coordinate-space calculation of the window observable for the hadronic vacuum polarization contribution to $(g-2)_μ$
Creators: name: Chao, En-Hung
name: Meyer, Harvey B.
name: Parrino, Julian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The `intermediate window quantity' of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon allows for a high-precision comparison between the data-driven approach and lattice QCD. The existing lattice results, which presently show good consistency among each other, are in strong tension with the data-driven determination. In order to check for a potentially common source of systematic error of the lattice calculations, which are all based on the time-momentum representation (TMR), we perform a calculation using a Lorentz-covariant coordinate-space (CCS) representation. We present results for the isovector and the connected strange-quark contributions to the intermediate window quantity at a reference point in the $(m_π,m_K)$ plane, in the continuum and infinite-volume limit, based on four different lattice spacings. Our results are in good agreement with those of the recent TMR-based Mainz-CLS publication.
description: 35 pages, 6 figures, 6 tables
Identification of a Ty1 regulatory sequence responsive to STE7 and STE12.
Creators: name: Company, M
name: Errede, B
name: Adler, C
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: Ty1 activation of gene expression observed in haploid cell types of Saccharomyces cerevisiae requires the STE7 and STE12 gene products. An activator sequence within Ty1 that is responsive to these two regulators has been defined. Complex formation between a factor in whole-cell extracts and the DNA regulatory element showed the same dependence on the STE7 and STE12 gene products as did reporter gene expression. Base pair substitutions within the binding site abolished the ability to form the factor-DNA complex and to activate gene expression. The correlation between complex formation and reporter gene expression indicates that factor binding to the cis-acting element is essential for gene activation. Because the predicted protein for the STE7 gene product is homologous to protein kinases, we suggest that protein phosphorylation may directly or indirectly regulate formation of this DNA-protein complex.
Supersymmetry in quantum optics and in spin-orbit coupled systems
Creators: name: Tomka, Michael
name: Pletyukhov, Mikhail
name: Gritsev, Vladimir
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Light-matter interaction is naturally described by coupled bosonic and fermionic subsystems. This suggests that a certain Bose-Fermi duality is naturally present in the fundamental quantum mechanical description of photons interacting with atoms. We reveal submanifolds in parameter space of a basic light-matter interacting system where this duality is promoted to a supersymmetry (SUSY) which remains unbroken. We show that SUSY is robust with respect to decoherence and dissipation. In particular, a stationary density matrix at the supersymmetric lines in the parameter space has a degenerate subspace. A dimension of this subspace is given by the Witten index and thus topologically protected. As a consequence of this SUSY, dissipative dynamics at the supersymmetric lines is constrained by an additional conserved quantity which translates some part of information about an initial state into the stationary state subspace. We also demonstrate a robustness of this additional conserved quantity away from the supersymmetric lines. In addition, we demonstrate that the same SUSY structures are present in condensed matter systems with spin-orbit couplings of Rashba and Dresselhaus types, and therefore spin-orbit coupled systems at the SUSY lines should be robust with respect to various types of disorder and decoherences. Our findings suggest that optical and condensed matter systems at the SUSY points can be used for quantum information technology and can open an avenue for quantum simulation of the SUSY field theories.
description: 15 pages, 3 figures
title: Analyse psychodynamique du travail infirmier en établissement médico-social
title: souffrance au travail et stratégies défensives
titleType: Subtitle
Creators: name: Scarpellini, Niki
Publisher: name: Unknown
Year: 0
Subjects: subject: infirmière
subject: établissement médico-social
subject: conditions de travail
subject: souffrance
subject: adaptation

description: Le but de cette recherche est d’identifier des situations de souffrance au travail en EMS et de faire émerger les stratégies défensives déployées par les infirmières afin de demeurer en santé. Pour parvenir aux objectifs de recherche, deux collectifs d’enquête ont été rencontrés. Chaque collectif était composé de quatre infirmières travaillant dans un EMS de Suisse romande. Pour l’élaboration de cette recherche de type qualitative et associée au modèle empirico-inductif, l’approche novatrice de la psychodynamique du travail (PDT) a été retenue. L’analyse met en évidence que, malgré des conditions de travail assez favorables à leur santé mentale, les infirmières en EMS perçoivent peu la reconnaissance de leur travail. Les principales causes du manque de reconnaissance de leur pratique sont à rechercher dans des facteurs tant internes qu’externes aux institutions. L’accomplissement de soi, la construction identitaire des infirmières en sont menacés, d’où le déploiement, tant sur le plan individuel que collectif, de diverses stratégies défensives. Le jury a relevé l’originalité de la méthode et la rigueur de la démarche.
Molecular localization and developmental expression of the otu locus of Drosophila melanogaster.
Creators: name: Kalfayan, L J
name: Mulligan, P K
name: Mohler, J D
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The female-sterile ovarian tumor gene, otu, is located in cytological region 7F1 on the Drosophila melanogaster chromosome map. We have mapped the gene at the molecular level by using four dysgenic alleles and two revertant derivatives of these alleles as well as an ethyl methanesulfonate-induced allele. The insertional (dysgenic) changes were all associated with one restriction fragment, and its size was restored after phenotypic reversion. One ethyl methanesulfonate-induced allele had a deletion in the restriction fragment adjacent (distal) to the fragment altered in the insertional alleles. These two restriction fragments were immediately adjacent to the s38 chorion gene. Associated with the two altered restriction fragments were two RNA species, an abundant 3.2-kilobase (kb) poly(A)+ RNA and a minor 4.0-kb RNA. Several other less-abundant RNA species were detectable with more-sensitive single-stranded RNA probes. The otu gene was transcribed proximal to distal relative to the centromere; this was opposite to the direction of transcription of the adjacent s38 gene. During development, the 3.2-kb RNA was absent in larvae, first appeared in the pupal stages, and persisted in adult females, in which it was most prevalent in the ovaries. The DNA that hybridized to the 3.2-kb ovarian RNA hybridized to four different RNAs found in the testes but not in the rest of the adult male. These testis-enriched RNAs were transcribed from the same strand of DNA as the ovarian transcripts.
The length of the downstream exon and the substitution of specific sequences affect pre-mRNA splicing in vitro.
Creators: name: Furdon, P J
name: Kole, R
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: We have shown previously that truncation of the human beta-globin pre-mRNA in the second exon, 14 nucleotides downstream from the 3' splice site, leads to inhibition of splicing but not cleavage at the 5' splice site. We now show that several nonglobin sequences substituted at this site can restore splicing and that the efficiency of splicing depends on the length of the second (downstream) exon and not a specific sequence. Deletions in the first exon have no effect on the efficiency of in vitro splicing. Surprisingly, an intron fragment from the 5' region of the human or rabbit beta-globin intron 2, when placed 14 nucleotides downstream from the 3' splice site, inhibited all the steps in splicing beginning with cleavage at the 5' splice site. This result suggests that the intron 2 fragment carries a "poison" sequence that can inhibit the splicing of an upstream intron.
A general theory of regression adjustment for covariate-adaptive randomization: OLS, Lasso, and beyond
Creators: name: Liu, Hanzhong
name: Tu, Fuyi
name: Ma, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the problem of estimating and inferring treatment effects in randomized experiments. In practice, stratified randomization, or more generally, covariate-adaptive randomization, is routinely used in the design stage to balance the treatment allocations with respect to a few variables that are most relevant to the outcomes. Then, regression is performed in the analysis stage to adjust the remaining imbalances to yield more efficient treatment effect estimators. Building upon and unifying the recent results obtained for ordinary least squares adjusted estimators under covariate-adaptive randomization, this paper presents a general theory of regression adjustment that allows for arbitrary model misspecification and the presence of a large number of baseline covariates. We exemplify the theory on two Lasso-adjusted treatment effect estimators, both of which are optimal in their respective classes. In addition, nonparametric consistent variance estimators are proposed to facilitate valid inferences, which work irrespective of the specific randomization methods used. The robustness and improved efficiency of the proposed estimators are demonstrated through a simulation study and a clinical trial example. This study sheds light on improving treatment effect estimation efficiency by implementing machine learning methods in covariate-adaptive randomized experiments.
Acquisition and processing of a conditional dicentric chromosome in Saccharomyces cerevisiae.
Creators: name: Bloom, K
name: Hill, A
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: The introduction of a conditional centromere into chromosome III of Saccharomyces cerevisiae provided an opportunity to evaluate phenotypic and karyotypic consequences in cells harboring dicentric chromosomes upon entry into mitosis. A mitotic pause ensued, and monocentric derivatives of chromosome III were generated at a high frequency.
title: Conjuguer injonctions économiques et politiques à un cadre
title: l’expérience des acteurs infirmiers d’un réseau de santé ambulatoire du Canton de Vaud
titleType: Subtitle
Creators: name: Gentizon, Jenny
Publisher: name: Unknown
Year: 0
Subjects: subject: droit d'asile
subject: droit à la santé
subject: économie de la santé
subject: rôle infirmier
subject: politique sanitaire

description: Le réseau FARMED (réseau de soins pour personnes requérantes d’asile, canton de Vaud) est soucieux de conjuguer injonctions économiques et politiques qui concernent les personnes requérantes d’asile ; il se veut un système sanitaire novateur, sans équivalent pour les citoyens suisse. Une étude socio-anthropologique a relevé des incohérences qui interpellent les finalités du réseau de santé FARMED. L'auteur a choisi d’inscrire le présent travail de recherche dans le continuum de cette étude afin de faire valoir un positionnement professionnel en regard de plusieurs éléments relatifs au réseau FARMED. Elle examine l’articulation « compétences relationnelles – éthique et satisfaction au travail »en regard de la problématique d’un réseau de santé ambulatoire dont bénéficient les requérants d’asile. La recherche est abordée sous l’angle de la méthodologie hypothético-déductive et la technique des entretiens semi-structurés. Le jury a relevé la clarté de la démarche, la qualité de la documentation utilisée et de la méthode de recherche.
Class II box consensus sequences in the HLA-DR alpha gene: transcriptional function and interaction with nuclear proteins.
Creators: name: Brown, A M
name: Sherman, P A
name: Moore, T L
name: Basta, P V
name: Ting, J P
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: The promoter regions of class II major histocompatibility complex genes contain two highly conserved sequences, the X and Y boxes, which may be involved in the control of class II gene expression. In this study, we correlate in vivo functional assays for cis-acting regulatory elements in the HLA-DR alpha gene with in vitro binding assays for trans-acting regulatory proteins. Mutagenesis and transient transfection analyses indicated that both the X and Y boxes were important for HLA-DR alpha promoter function in a B lymphoblastoid cell line. Although specific nuclear protein interactions with the X consensus sequence were not apparent, the Y box, which contained an inverted CCAAT sequence, did bind specifically to at least one nuclear protein. This Y box-binding protein was present in nuclear extracts of all cell types examined, including human B and T cells and HeLa cells. The molecular mass of the protein, as determined by photoactivated protein-DNA cross-linking, was approximately 40 to 50 kilodaltons. Mutagenesis of the Y box that decreased protein binding also decreased promoter activity, implying that protein binding to this DNA sequence is important for DR alpha promoter function.
Interactions between yeast photolyase and nucleotide excision repair proteins in Saccharomyces cerevisiae and Escherichia coli.
Creators: name: Smith, F W
name: Sancar, G B
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: The PHR1 gene of Saccharomyces cerevisiae encodes a DNA photolyase that catalyzes the light-dependent repair of pyrimidine dimers. In the absence of photoreactivating light, this enzyme binds to pyrimidine dimers but is unable to repair them. We have assessed the effect of bound photolyase on the dark survival of yeast cells carrying mutations in genes that eliminate either nucleotide excision repair (RAD2) or mutagenic repair (RAD18). We found that a functional PHR1 gene enhanced dark survival in a rad18 background but failed to do so in a rad2 or rad2 rad18 background and therefore conclude that photolyase stimulates specifically nucleotide excision repair of dimers in S. cerevisiae. This effect is similar to the effect of Escherichia coli photolyase on excision repair in the bacterium. However, despite the functional and structural similarities between yeast photolyase and the E. coli enzyme and complementation of the photoreactivation deficiency of E. coli phr mutants by PHR1, yeast photolyase failed to enhance excision repair in the bacterium. Instead, Phr1 was found to be a potent inhibitor of dark repair in recA strains but had no effect in uvrA strains. The results of in vitro experiments indicate that inhibition of nucleotide excision repair results from competition between yeast photolyase and ABC excision nuclease for binding at pyrimidine dimers. In addition, the A and B subunits of the excision nuclease, when allowed to bind to dimers before photolyase, suppressed photoreactivation by Phr1. We propose that enhancement of nucleotide excision repair by photolyases is a general phenomenon and that photolyase should be considered an accessory protein in this pathway.
Unveiling a crystalline topological insulator in a Weyl semimetal with time-reversal symmetry
Creators: name: Arrachea, Liliana
name: Aligia, Armando A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a natural generalization of the lattice model for a periodic array of two layers, A and B, of spinless electrons proposed by Fu [Phys. Rev. Lett. 106, 106802 (2011)] as a prototype for a crystalline insulator. This model has time-reversal symmetry and broken inversion symmetry. We show that when the intralayer next-nearest-neighbor hoppings ta2, a = A, B vanish, this model supports a Weyl semimetal phase for a wide range of the remaining model parameters. When the effect of ta2 is considered, topological crystalline insulating phases take place within the Weyl semimetal one. By mapping to an effective Weyl Hamiltonian we derive some analytical results for the phase diagram as well as for the structure of the nodes in the spectrum of the Weyl semimetal.
description: 8 pages, 8 figures
Exciting the TTV Phases of Resonant Sub-Neptunes
Creators: name: Choksi, Nick
name: Chiang, Eugene
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: There are excesses of sub-Neptunes just wide of period commensurabilities like the 3:2 and 2:1, and corresponding deficits narrow of them. Any theory that explains this period ratio structure must also explain the strong transit timing variations (TTVs) observed near resonance. Besides an amplitude and a period, a sinusoidal TTV has a phase. Often overlooked, TTV phases are effectively integration constants, encoding information about initial conditions or the environment. Many TTVs near resonance exhibit non-zero phases. This observation is surprising because dissipative processes that capture planets into resonance also damp TTV phases to zero. We show how both the period ratio structure and the non-zero TTV phases can be reproduced if pairs of sub-Neptunes capture into resonance in a gas disc while accompanied by a third eccentric non-resonant body. Convergent migration and eccentricity damping by the disc drives pairs to orbital period ratios wide of commensurability; then, after the disc clears, secular forcing by the third body phase-shifts the TTVs. The scenario predicts that resonant planets are apsidally aligned and possess eccentricities up to an order of magnitude larger than previously thought.
description: Accepted to MNRAS. Added discussion in Section 4 on stochastic and near-resonant forcing. Appendix A1 clarifies how disk damping timescales are chosen