cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectrum of Hidden-Charm, Open-Strange Exotics in the Dynamical Diquark Model
Creators: name: Giron, Jesse F.
name: Lebed, Richard F.
name: Martinez, Steven R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observation by BESIII and LHCb of states with hidden charm and open strangeness ($c\bar c q\bar s$) presents new opportunities for the development of a global model of heavy-quark exotics. Here we extend the dynamical diquark model to encompass such states, using the same values of Hamiltonian parameters previously obtained from the nonstrange and hidden-strange sectors. The large mass splitting between $Z_{cs}(4000)$ and $Z_{cs}(4220)$ suggests substantial SU(3)$_{\rm flavor}$ mixing between all $J^P \! = \! 1^+$ states, while their average mass compared to that of other sectors offers a direct probe of flavor octet-singlet mixing among exotics. We also explore the inclusion of $η$-like exchanges within the states, and find their effects to be quite limited. In addition, using the same diquark-mass parameters, we find $P_c(4312)$ and $P_{cs}(4459)$ to fit well as corresponding nonstrange and open-strange pentaquarks.
description: 12 pages. Version accepted for publication at Phys. Rev. D. Includes reference update
The Doubly-heavy Tetraquarks ($qq'\bar{Q}\bar{Q'}$) in a Constituent Quark Model with a Complete Set of Harmonic Oscillator Bases
Creators: name: Noh, Sungsik
name: Park, Woosung
name: Lee, Su Houng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have improved our previous variational method based constituent quark model by introducing a complete set of 3-dimensional harmonic oscillator bases as the spatial part of the total wave function. To assess the validity of our approach, we compared the binding energy, thus calculated with the exact value for the hydrogen model. After fitting to the masses of the ground state hadrons, we apply our new method to analyze the doubly-heavy tetraquark states $qq'\bar{Q}\bar{Q'}$ and compared the result for the binding energies with that from other works. We also calculated the ground state masses of $T_{sc} (ud\bar{s}\bar{c})$ and $T_{sb} (ud\bar{s}\bar{b})$ with $(I,S) = (0,1), (0,2)$. We found that $T_{bb} (ud\bar{b}\bar{b})$ and $us\bar{b}\bar{b}$, both with $(I,S) = (0,1)$, are stable against the two lowest threshold meson states with binding energies $-145$ MeV and $-42$ MeV, respectively. We further found that $T_{cb} (ud\bar{c}\bar{b})$ is near the lowest threshold. The spatial sizes for the tetraquarks are also discussed.
description: 20 pages, 10 figures
Gravitational lensing by an extended mass distribution
Creators: name: Turyshev, Slava G.
name: Toth, Viktor T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We continue our investigation of the optical properties of the solar gravitational lens (SGL). We treat the Sun as an extended axisymmetric body and model its gravitational field using zonal harmonics. We consider a point source that is positioned at a large but finite distance from the Sun and, using our new angular eikonal method, we established the electro-magnetic (EM) field on the image plane in the focal region behind the SGL and derive the SGL's impulse response in the form of its point-spread function (PSF). The expression that we derive describes the extended Sun in all regions of interest, including the regions of strong and weak interference and the region of geometric optics. The result is in the form of a single integral with respect to the azimuthal angle of the impact parameter, covering all lensing regimes of the SGL. The same expression can be used to describe gravitational lensing by a compact axisymmetric mass distribution, characterized by small deviations from spherical symmetry. It is valid in all lensing regimes. We also derive results that describe the intensity of light observed by an imaging telescope in the focal region. We present results of numerical simulations showing the view by a telescope that moves in the image plane toward the optical axis. We consider imaging of both point and extended sources. We show that while point sources yield a number of distinct images consistent with the caustics due to zonal harmonics of a particular order (e.g., Einstein cross), extended sources always result in the formation of an Einstein ring. These results represent the most comprehensive wave-theoretical treatment of gravitational lensing in the weak gravitational field of a compact axisymmetric gravitating object.
description: 22 pages, 5 figures
Tetromino tilings and the Tutte polynomial
Creators: name: Jacobsen, Jesper Lykke
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider tiling rectangles of size 4m x 4n by T-shaped tetrominoes. Each tile is assigned a weight that depends on its orientation and position on the lattice. For a particular choice of the weights, the generating function of tilings is shown to be the evaluation of the multivariate Tutte polynomial Z\_G(Q,v) (known also to physicists as the partition function of the Q-state Potts model) on an (m-1) x (n-1) rectangle G, where the parameter Q and the edge weights v can take arbitrary values depending on the tile weights.
description: 8 pages, 6 figures
A note on the determination of light quark masses
Creators: name: Deandrea, A.
name: Nehme, A.
name: Talavera, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a model-independent determination of the quantity B_0(m_d-m_u). Our approach rests only on chiral symmetry and data from the decay of the eta into three neutral pions. Since the low-energy prediction at next-to-leading order fails to reproduce the experimental results, we keep the strong interaction correction as an unknown parameter. As a first step, we relate this parameter to the quark mass difference using data from the Dalitz plot. A similar relation is obtained using data from the decay width. Combining both relations we obtain B_0(m_d-m_u)=(4495+/-440) MeV^2. The preceding value, combined with lattice determinations, leads to the values m_u(2 GeV)=(2.9+/-0.8) MeV and m_d(2 GeV)=(4.7+/-0.8) MeV.
description: 8 pages, 1 figure, updated version with all detailed formulas, title slighly changed
Elementary Excitations of Quantum Critical 2+1 D Antiferromagnets
Creators: name: Nazario, Zaira
name: Santiago, David I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It has been proposed that there are degrees of freedom intrinsic to quantum critical points that can contribute to quantum critical physics. We point out that this conclusion is quite general below the upper critical dimension. We show that in 2+1 D antiferromagnets skyrmion excitations are stable at criticality and identify them as the critical excitations. We found exact solutions composed of skyrmion and antiskyrmion superpositions, which we call topolons. We include the topolons in the partition function and renormalize by integrating out small size topolons and short wavelength spin waves. We obtain correlation length exponent nu=0.9297 and anomalous dimension eta=0.3381.
description: 4 pages
Η αρχή της αντανάκλασης στο υπερβολικό επίπεδο
Creators: name: Γιαννίτση, Χριστίνα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αρχή της Αντανάκλασης.
Λήμμα του Ahlfors
Υπερβολικό Μιγαδικό Επίπεδο
Refllection Principle
Ahlfors Lemma
Complex Hyperbolic Plane

description: Κύριος στόχος της εργασίας είναι να παρουσιάσει αναλυτικά το Λήμμα του Ahlfors και την Αρχή της Αντανάκλασης για το υπερβολικό μιγαδικό επίπεδο. Ξεκινάμε ορίζοντας την υπερβολική μετρική στον μοναδιαίο δίσκο, και στην συνέχεια γενικεύουμε τον ορισμό σε υπερβολικούς τόπους. Αναφέρουμε το γενικευμένο Λήμμα Schwarz-Pick, την Αρχή της Σύγκρισης, και τη βασική θεωρία των Θεμελιωδών τόπων. Στο κύριο μέρος υπολογίζουμε την καμπυλότητα της υπερβολικής μετρικής και αποδεικνύουμε αναλυτικά το Λήμμα του Ahlfors και την Αρχή της Αντανάκλασης. Στο τελευταίο μέρος παρουσιάζουμε ορισμένες εφαρμογές τους που αφορούν την μονοτονία της μετρικής, την ευκλείδεια και υπερβολική κυρτότητα και καμπυλότητα, και τον υπολογισμό της υπερβολικής μετρικής ως λύση συνήθους διαφορικής εξίσωσης. Τέλος βλέπουμε κάποια από τα προηγούμενα αποτελέσματα, όπως αυτά ισχύουν στην σφαίρα του Riemann
description: The main purpose of this thesis is to discuss in detail the Ahlfors Lemma and the Reflection Principle on the complex hyperbolic plane. We begin by defining the hyperbolic metric on the complex unit disc, and then we generalize this definition on hyperbolic domains. We present the Generalized Schwarz-Pick Lemma, the Comparison Principle and some basic theory for Fundamental domains. On our main chapter, we calculate the curvature of the hyperbolic metric and give detailed proofs of the Ahlfors Lemma and the Reflection Principle. On our final chapter, we present certain applications, regarding the monotonicity of the hyperbolic metric, Euclidean and hyperbolic curvature and convexity as well as the hyperbolic metric as the maximal solution to an ordinary differential equation. Finally, we examine some of these results on Riemann's Sphere
Where the Blue Stragglers Roam: Searching for a Link Between Formation and Environment
Creators: name: Leigh, Nathan
name: Sills, Alison
name: Knigge, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The formation of blue stragglers is still not completely understood, particularly the relationship between formation environment and mechanism. We use a large, homogeneous sample of blue stragglers in the cores of 57 globular clusters to investigate the relationships between blue straggler populations and their environments. We use a consistent definition of "blue straggler" based on position in the color-magnitude diagram, and normalize the population relative to the number of red giant branch stars in the core. We find that the previously determined anti-correlation between blue straggler frequency and total cluster mass is present in the purely core population. We find some weak correlations with central velocity dispersion and with half-mass relaxation time. The blue straggler frequency does not show any trend with any other cluster parameter. Even though collisions may be expected to be a dominant blue straggler formation process in globular cluster cores, we find no correlation between the frequency of blue stragglers and the collision rate in the core. We also investigated the blue straggler luminosity function shape, and found no relationship between any cluster parameter and the distribution of blue stragglers in the color-magnitude diagram. Our results are inconsistent with some recent models of blue straggler formation that include collisional formation mechanisms, and may suggest that almost all observed blue stragglers are formed in binary systems.
description: Important changes to tables and figures have been made in the included erratum. Our results remain unchanged
Measuring trajectories of environmental noise
Creators: name: Szańkowski, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In classical mechanics, a natural way to simplify a many-body problem is to ``replace'' some of the elements of the composite system with surrogate \textit{force fields}. In the realm of quantum mechanics, however, such a description is rarely compatible with the formalism of the theory. Nevertheless, the quantum version of external field models---the so-called \textit{noise representations}---can be employed in certain circumstances. The mathematics behind these models indicate that the appearing fields typically exhibit random fluctuations, hence, the name \textit{noise field} is more apt. In principle, measuring a classical force field is a trivial task; all that is needed is a probe equipped with an accelerometer that can be moved around while taking the measure of forces that affect it. Unfortunately, an analogous method cannot work in the quantum case. As indicated by the theory, the result of any measurement performed on the quantum system affected by a noise field always appears as an average over fluctuations, therefore, it is impossible to observe the noise fluctuations by measuring the state of the probe. Here, we demonstrate that this limitation can be circumvented and that it is possible to expose the noise field fluctuations to direct observation. This allows one to sample the noise trajectories (stochastic realizations), store them, and later use them to simulate the dynamics of open quantum systems affected by the noise.
description: 9 pages, 2 figures
title: End-of-life practices in 11 German intensive care units
title: Results from the ETHICUS-2 study
titleType: Subtitle
Creators: name: Denke, C.
name: Jaschinski, U.
name: Riessen, R.
name: Bercker, S.
name: Spies, C.
name: Ragaller, M.
name: Weiss, M.
name: Dey, K.
name: Michalsen, A.
name: Briegel, J.
name: Pohrt, A.
name: Sprung, C. L.
name: Avidan, A.
name: Hartog, C. S.
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Intensive care units
subject: Withholding life-sustaining treatments
subject: Cardiopulmonary resuscitation
subject: Advance directives
subject: Region
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: End-of-life care is common in German intensive care units (ICUs) but little is known about daily practice. Objectives: To study the practice of end-of-life care. Methods: Prospectively planned, secondary analysis comprising the German subset of the worldwide Ethicus-2 Study (2015-2016) including consecutive ICU patients with limitation of life-sustaining therapy or who died. Results: Among 1092 (13.7%) of 7966 patients from 11 multidisciplinary ICUs, 967 (88.6%) had treatment limitations, 92 (8.4%) died with failed CPR, and 33 (3%) with brain death. Among patients with treatment limitations, 22.3% (216/967) patients were discharged alive from the ICU. More patients had treatments withdrawn than withheld (556 [57.5%] vs. 411 [42.5%], p < 0.001). Patients with treatment limitations were older (median 73 years [interquartile range (IQR) 61-80] vs. 68 years [IQR 54-77]) and more had mental decision-making capacity (12.9 vs. 0.8%), advance directives (28.6 vs. 11.2%), and information about treatment wishes (82.7 vs 33.3%, all p < 0.001). Physicians reported discussing treatment limitations with patients with mental decision-making capacity and families (91.3 and 82.6%, respectively). Patient wishes were unknown in 41.3% of patients. The major reason for decision-making was unresponsiveness to maximal therapy (34.6%). Conclusions: Treatment limitations are common, based on information about patients' wishes and discussion between stakeholders, patients and families. However, our findings suggest that treatment preferences of nearly half the patients remain unknown which affects guidance for treatment decisions.
Additional file 1 of Transcriptome sequencing and differential expression analysis of natural and BTH-treated wound healing in potato tubers (Solanum tuberosum L.)
Creators: name: Jiang, Hong
name: Li, Xue
name: Ma, Li
name: Ren, Yingyue
name: Bi, Yang
name: Prusky, Dov
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
Enhanced Direct and Indirect Genetic Algorithm Approaches for a Mall Layout and Tenant Selection Problem
Creators: name: Aickelin, Uwe
name: Dowsland, Kathryn
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: During our earlier research, it was recognised that in order to be successful with an indirect genetic algorithm approach using a decoder, the decoder has to strike a balance between being an optimiser in its own right and finding feasible solutions. Previously this balance was achieved manually. Here we extend this by presenting an automated approach where the genetic algorithm itself, simultaneously to solving the problem, sets weights to balance the components out. Subsequently we were able to solve a complex and non-linear scheduling problem better than with a standard direct genetic algorithm implementation.
Symmetry breaking at high temperatures in large N gauge theories
Creators: name: Chaudhuri, Soumyadeep
name: Rabinovici, Eliezer
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Considering marginally relevant and relevant deformations of the weakly coupled $(3+1)$-dimensional large $N$ conformal gauge theories introduced in arXiv:2011.13981, we study the patterns of phase transitions in these systems that lead to a symmetry-broken phase in the high temperature limit. These deformations involve only the scalar fields in the models. The marginally relevant deformations are obtained by varying certain double trace quartic couplings between the scalar fields. The relevant deformations, on the other hand, are obtained by adding masses to the scalar fields while keeping all the couplings frozen at their fixed point values. At the $N\rightarrow\infty$ limit, the RG flows triggered by these deformations approach the aforementioned weakly coupled CFTs in the UV regime. These UV fixed points lie on a conformal manifold with the shape of a circle in the space of couplings. In certain parameter regimes a subset of points on this manifold exhibits thermal order characterized by the spontaneous breaking of a global $\mathbb Z_2$ or $U(1)$ symmetry and Higgsing of a subset of gauge bosons at all nonzero temperatures. We show that the RG flows triggered by the marginally relevant deformations lead to a weakly coupled IR fixed point which lacks the thermal order. Thus, the systems defined by these RG flows undergo a transition from a disordered phase at low temperatures to an ordered phase at high temperatures. This provides examples of both inverse symmetry breaking and symmetry nonrestoration. For the relevant deformations, we demonstrate that a variety of phase transitions are possible depending on the signs and magnitudes of the masses (squared) added to the scalar fields. Using thermal perturbation theory, we derive the approximate values of the critical temperatures for all these phase transitions. All the results are obtained at the $N\rightarrow\infty$ limit.
description: 40 pages
Becoming Self-Compassionate Step by Step — a Field Study on the Effect of Long-Distance Walking on Self-Compassion in Hikers Traveling the Camino Francés
Creators: name: Steininger, Yves
name: Braun, Andreas
name: Morgenroth, Olaf
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Self-compassion
subject: Long-distance walking
subject: Exercise
subject: Measurement of change
subject: Field study
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Objectives: The present longitudinal field study investigated whether hiking the Camino Frances strengthened self-compassion and tested covered distance, hikers' motives, and walking alone vs. with other hikers as predictors of the increase. Method: In the prospective main study with 104 hikers, 67.3% female, M = 36.3 years (SD = 14.2), change was measured by the difference between the first measurement taken on the way and the second measurement at arrival. Additionally, 21 participants, 52.4% female, M = 34.3 years (SD = 14), were recruited upon arrival and reported their actual and their retrospectively rated self-compassion at the start of their tour. Two follow-ups were conducted after 3 weeks and 6 months. Participants completed the Self-Compassion Scale (SCS) along with measures for mood and life satisfaction. Results: An increase in self-compassion was observed with d = 0.22 (p = 0.024) in the prospective data, and d = 0.56 (p = 0.018) in the retrospective data, which persisted throughout the follow-ups. In the prospective study, self-compassion was a stronger predictor of mood across time than vice versa. The increase in self-compassion was stronger in participants who walked longer distances (beta = .25) and underwent a critical life event (beta = .21). Conclusions: The results suggest long-distance walking as a promising additional means to strengthen self-compassion that could be integrated into compassion training programs. Future research should replicate the observed change across settings and related constructs, determine its causes, and investigate the interdependence of walking and meditation practices in stimulating self-compassion.
Thermal annealing study of swift heavy-ion irradiated zirconia
Creators: name: Costantini, Jean-Marc
name: Kahn-Harari, Andrée
name: Beuneu, Francois
name: Couvreur, François
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Sintered samples of monoclinic zirconia (alpha-ZrO2) have been irradiated at room temperature with 6.0-GeV Pb ions in the electronic slowing down regime. X-ray diffraction (XRD) and micro-Raman spectroscopy measurements showed unambiguously that a transition to the 'metastable' tetragonal phase (beta-ZrO2) occurred at a fluence of 6.5x10^12 cm-2 for a large electronic stopping power value (approx 32.5 MeV $μ$m-1). At a lower fluence of 1.0x10^12 cm-2, no such phase transformation was detected. The back-transformation from beta- to alpha-ZrO2 induced by isothermal or isochronal thermal annealing was followed by XRD analysis. The back-transformation started at an onset temperature around 500 K and was completed by 973 K. Plots of the residual tetragonal phase fraction deduced from XRD measurements versus annealing temperature or time are analyzed with first- or second-order kinetic models. An activation energy close to 1 eV for the back-transformation process is derived either from isothermal annealing curves, using the so-called "cross-cut" method, or from the isochronal annealing curve, using a second-order kinetic law. Correlation with the thermal recovery of ion-induced paramagnetic centers monitored by EPR spectroscopy is discussed. Effects of crystallite size evolution and oxygen migration upon annealing are also addressed.
Relativistic Frozen Density Embedding calculations of solvent effects on the NMR shielding constants of transition metal nuclei
Creators: name: Olejniczak, Malgorzata
name: Antusek, Andrej
name: Jaszunski, Michal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nuclear Magnetic Resonance (NMR) shielding constants of transition metals in solvated complexes are computed at the relativistic density functional theory (DFT) level. The solvent effects evaluated with subsystem-DFT approaches are compared with the reference solvent shifts predicted from supermolecular calculations. Two subsystem-DFT approaches are analyzed -- in the standard frozen density embedding (FDE) scheme the transition metal complexes are embedded in an environment of solvent molecules whose density is kept frozen, in the second approach the densities of the complex and of its environment are relaxed in the "freeze-and-thaw" procedure. The latter approach improves the description of the solvent effects in most cases, nevertheless the FDE deficiencies are rather large in some cases.
The precessing jets of classical nova YZ Reticuli
Creators: name: McLoughlin, Dominic
name: Blundell, Katherine M.
name: Lee, Steven
name: McCowage, Chris
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The classical nova YZ Reticuli was discovered in July 2020. Shortly after this we commenced a sustained, highly time-sampled coverage of its subsequent rapid evolution with time-resolved spectroscopy from the Global Jet Watch observatories. Its H-alpha complex exhibited qualitatively different spectral signatures in the following weeks and months. We find that these H-alpha complexes are well described by the same five Gaussian emission components throughout the six months following eruption. These five components appear to constitute two pairs of lines, from jet outflows and an accretion disc, together with an additional central component. The correlated, symmetric patterns that these jet/accretion disc pairs exhibit suggest precession, probably in response to the large perturbation caused by the nova eruption. The jet and accretion disc signatures persist from the first ten days after brightening -- evidence that the accretion disc survived the disruption. We also compare another classical nova (V6568 Sgr) that erupted in July 2020 whose H-alpha complex can be described analogously, but with faster line-of-sight jet speeds exceeding 4000 km/s. We suggest that classical novae with higher mass white dwarfs bridge the gap between recurrent novae and classical novae such as YZ Reticuli.
Understanding of discrimination against people with Albinism in East Africa
Creators: name: Burke, Jean Robinson
Publisher: name: Australian Catholic University
Year: 2013
Subjects: Albinism
Tanzania
Africa
Violence

description: Data collected to build knowledge and understanding of discrimination against people with Albinism in East Africa in order to guide effective responses and strategies to address this. Data are in English and in Swahili. Data: Bibliography of articles, books etc on the topic (not limited to those copied for the research). Set of articles from Tanzanian newspaper websites. One set is English, one is Swahili. Excel file with summary of articles, bibliography. Sources: newspaper websites (i.e. IPPmedia group, Mwananchi communications, Majira P/L) Data format: Excel file with list of news articles. Word documents (news articles including text and photos). Excel file with list of the articles. Bibliography in Endnote (can be provided in word doc). Private individuals named in the original articles have not given consent to be identified. They would need to be anonymised for any published research. Some people mentioned in the articles are a vulnerable group.
Former Training Relieves the Later Development of Behavioral Inflexibility in an Animal Model Overexpressing the Dopamine Transporter
Creators: name: Edemann-Callesen, Henriette
name: Glienke, Maximilian
name: Akinola, Esther Olubukola
name: Lieser, Maike Kristin
name: Habelt, Bettina
name: Hadar, Ravit
name: Bernhardt, Nadine
name: Winter, Christine
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Dopamine irregularities
subject: Animal model
subject: Cognitive deficits
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: A range of dopamine-dominating neuropsychiatric disorders present with cognitive deficits. In accordance, the dopamine transporter overexpressing rat model (DAT-tg rat) displays cognitive deficits by means of behavioral inflexibility and learning disabilities. It remains to be investigated when cognitive deficits emerge, due to the inherent DA irregularities, during the life course of the DAT-tg rat and what may relieve symptoms. The Morris water maze (MWM) was used to assess cognitive abilities in three cohorts of DAT-tg rats. In the first cohort, the development of cognitive deficits was assessed by repeatedly testing animals in the MWM at postnatal day (PND) 35, 60, and 90. In the second and third cohort, pharmacological interventions and transcranial direct current stimulation (tDCS) were tested in adult animals to understand what drives, and thus relieves, the deficits. Minor differences were observed between DAT-tg rats and control rats at PND 35 and 60, whereas cognitive deficits fully emerged at PND 90. A high dosage of methylphenidate diminished both behavioral inflexibility and improved learning abilities in adult rats. Interestingly, rats subjected early in life to the MWM also displayed improved behavioral flexibility as compared to rats naive to the paradigm. Cognitive deficits gradually develop over time and fully emerge in adulthood. Pharmacological modulation of the ubiquitous DAT overexpression overall improves deficits in adult rats, whereas early training decreases later development of behavioral inflexibility. Thus, former training may constitute a preventive avenue that alters some aspects of cognitive deficits resulting from inherent DA abnormalities.
Turbulent Convection in Stellar Interiors. I. Hydrodynamic Simulation
Creators: name: Meakin, Casey A.
name: Arnett, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We describe the results of three-dimensional (3D) numerical simulations designed to study turbulent convection in the stellar interiors, and compare them to stellar mixing-length theory (MLT). Simulations in 2D are significantly different from 3D, both in terms of flow morphology and velocity amplitude. Convective mixing regions are better predicted using a [dynamic boundary condition] based on the bulk Richardson number than by purely local, static criteria like Schwarzschild or Ledoux. MLT gives a good description of the velocity scale and temperature gradient for a mixing length of $\sim 1.1 H_p$ for shell convection, however there are other important effects that it does not capture near boundaries. Convective "overshooting" is best described as an elastic response by the convective boundary, rather than ballistic penetration of the stable layers by turbulent eddies. We find that the rate at which material entrainment proceeds at the boundaries is consistent with analogous laboratory experiments as well as simulation and observation of terrestrial atmospheric mixing. In particular, the normalized entrainment rate E=$u_E/σ_H$, is well described by a power law dependence on the bulk Richardson number $Ri_B = Δb L/σ_H^2$ for the conditions studied, $20\lesssim Ri_B \lesssim 420$. We find $E = A Ri_B^{-n}$, with best fit values, $\log A = 0.027 \pm 0.38$, and $n = 1.05 \pm 0.21$. We discuss the applicability of these results to stellar evolution calculations.
description: 32 pages(emulateapj), 26 figures, 6 tables. Submitted to ApJ. Comments will be warmly welcomed. For version with full resolution figures and related pre-prints goto http://celsus.as.arizona.edu/preprints/
An exploratory study of therapist attachment and working alliance bonds
Creators: name: McKee, Gerard Mercier
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to examine whether therapists' responses to the Adult Attachment Questionnaire (AAQ, Hazan & Shaver, 1987) and the Adult Attachment Scale (AAS; Collins & Read, 1990) would be predictive of the strength of client and therapist reported Bond scores on the Working Alliance Inventory-Short Form (WAI-S; Tracey & Kokotovic, 1989). A total of 40 Lower Mainland of British Columbia therapists participated in Phase 1 of the study by completing the AAQ, the AAS and a demographic questionnaire. A total of 10 of these therapists participated in Phase 2 of the study. Each of the Phase 2 therapists recruited three clients to participate in the study. Immediately following the third session, both therapists and clients completed the WAI-S. Clients also completed the AAQ and a short demographic questionnaire. Although an uneven distribution of attachment types in the sample precluded any formal statistical analysis, visual examination of therapists' responses to the attachment measures suggests that therapists who chose the Secure AAQ description obtained higher mean scores on the AAS Close and Depend dimensions and lower AAS Anxiety dimension scores than therapists who chose the insecure AAQ descriptions. Correlation matrices were compiled to examine the strength of relationships among the standings of therapists on the AAS dimensions, on therapist ratings of the WAI-S and client ratings of the WAI-S. No significant correlations were found in relation to therapists' AAS dimension scores and therapist or client WAI-S ratings. Significant correlations were found for both client and therapist WAI-S interscale ratings and between client and therapist WAI-S ratings. A t-test was carried out to examine high and low WAI-S Bond ratings of clients in relation to therapists' WAI-S ratings. Significant differences were found between the WAI-S Bond ratings of therapists whose clients were identified as having high WAI-S Bond ratings and the WAI-S Bond ratings of therapists whose clients were identified as having low WAI-S ratings. The study found no evidence that attachment information in general predicts the strength of working alliance bonds. However, support was found for the predictive ability of the AAS Depend dimension. The Depend dimension scores of therapists whose clients reported higher WAI-S Bond strength were significantly different from the Depend dimension scores of therapists whose clients reported lower WAI-S Bond strength.
Null Frenet-Serret Dynamics
Creators: name: Capovilla, Riccardo
name: Guven, Jemal
name: Rojas, Efrain
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the Frenet-Serret geometry of null curves in a three and a four-dimensional Minkowski background. We develop a theory of deformations adapted to the Frenet-Serret frame. We exploit it to provide a Lagrangian description of the dynamics of geometric models for null curves.
description: 5 pages, no figures, RevTex. Dedicated to Mike Ryan on his sixtieth birthday
Το Θεώρημα 90 του Χίλμπερτ
Creators: name: Στεφανίδου, Δήμητρα Χριστίνα Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Συνομολογική Θεωρία Ομάδων
Θεωρία Galois
Χίλμπερτ
Group Cohomology
Galois Theory
Hilbert

description: Σκοπός της παρούσας εργασίας είναι να εξετάσουμε το Θεώρημα 90 του Hilbert για πεπερασμένες επεκτάσεις σωμάτων. Στο Κεφάλαιο 1 αναφέρουμε τα στοιχεία της Θεωρίας Galois που είναι απαραίτητα για την απόδειξη του A Θεωρήματος 90 του Hilbert. Αποδεικνύουμε το A Θεώρημα 90 του Hilbert συναρτήσει της norm ως εφαρμογή του Θεωρήματος του R.Dedekind(1831-1916) περί γραμμικής ανεξαρτησίας των στοιχείων ομάδας Galois. Στο Κεφάλαιο 2 αναφέρουμε τα στοιχεία από την Ομολογική Άλγεβρα και τη Συνομολογική Θεωρία Ομάδων που είναι απαραίτητα για την απόδειξη της συνομολογικής έκφρασης του Θεωρήματος 90 του Hilbert (Β Θεώρημα), την οποία παραθέτουμε σε αυτό το Κεφάλαιο. Στο Κεφάλαιο 3 αναφέρουμε εφαρμογές του Α Θεωρήματος στην επίλυση Διοφαντικών εξισώσεων που γενικεύουν μία ιδέα της Olga Taussky το 1970
description: The aim of this thesis is to examine Hilbert’s Theorem 90 for finite field extensions. In Chapter 1 we present some basic results of Galois Theory which are used to prove Hilbert’s A Theorem 90. We prove Hilbert’s Theorem 90 (Theorem A) by using norm as an application of R.Dedekind ‘s (1831-1916) Theorem on linear independence of Galois group characters. In Chapter 2 we present what we are going to need from Homological Algebra and Group Cohomology to prove the cohomology version of Hilbert’s Theorem 90 ( Theorem B) , which we provide in this Chapter. In Chapter 3 we use Theorem A to solve Diophantine equations that generalize an idea of Olga Taussky in 1970
Comment on: "Electromagnetically induced left-handedness in optically excited four-level atomic media"
Creators: name: Kästel, Jürgen
name: Fleischhauer, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the recent proposal by Thommen and Mandel (Phys. Rev. Lett. {\bf 96}, 053601 (2006)) for electromagnetically induced negative refraction. Although the main conclusion of the paper -- the possibility to achieve negative refraction in an experimentally accessible atomic scheme -- remains valid, we show that the weak-excitation approximation used is invalid in the parameter regime studied and leads to quantitatively incorrect predictions. We show that negative refraction is always accompanied by absorption rather than by gain, and that the maximum value of the refraction-absorption ratio is of order unity.
description: 1 page, one figure, comment on Phys. Rev. Lett. {\bf 96}, 053601 (2006)
Elicitation: Colors and numbers
Creators: name: Quenchuya Abell, Thosen
name: Robertson, Allegra
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: ame

description: Los colores y los números.

See corresponding field notes on pages 28 and 24.

Busque las notas correspondientes en las páginas 28 y 24.
On the narrowband detection properties of high-redshift Lyman-alpha emitters
Creators: name: Hayes, Matthew
name: Ostlin, Goran
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Numerous surveys are underway or planned that aim to exploit the Lyman-alpha emission line as a probe of the distant universe. We investigate the reliability of such high-z Lya studies and the validity of the conclusions that are based upon them. We examine whether reliable Lya fluxes (F_Lya) and equivalent widths (W_Lya) can be estimated from narrowband imaging surveys and whether any observational biases may be present. We have developed software to simulate the observed line and continuum properties of synthetic LAEs in the distant universe by adopting various typical observational techniques. This was used to investigate how detected F_Lya and W_Lya vary with properties of the host or IGM: internal dust reddening; intervening Lya absorption systems; the presence of underlying stellar populations. None of the techniques studied are greatly susceptible to underlying stellar populations or the contribution of nebular gas. We find that techniques that use one off-line filter on the red side of Lya result in highly inaccurate measurements of W_Lya. Adopting two off-line filters to estimate continuum at Lya is an improvement but is still unreliable when dust extinction is considered. Techniques that employ single narrow- and broad-band filters with the same central wavelength are not susceptible to internal dust, but IGM Lya absorption can cause W_Lya to be overestimated by factors of up to 2: at z=6, the median W_Lya is overestimated by ~25%. The most robust approach is a SED fitting technique that fits E(B-V) and burst-age from synthetic models - broadband observations are needed that sample the UV continuum slope, 2175AA dust feature, and the 4000AA discontinuity. We also notice a redshift-dependent incompleteness that results from DLA systems close to the target LAEs, amounting to ~10% at z=6.
description: Accepted for publication in Astronomy and Astrophysics
Additional file 2 of Elevated plasma triglyceride concentration and risk of adverse clinical outcomes in 1.5 million people: a CALIBER linked electronic health record study
Creators: name: Patel, Riyaz S.
name: Pasea, Laura
name: Soran, Handrean
name: Downie, Paul
name: Jones, Richard
name: Hingorani, Aroon D.
name: Neely, Dermot
name: Denaxas, Spiros
name: Hemingway, Harry
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Virology

description: Additional file 2: Table S1. Baseline characteristics of the study population by age group. Table S2. Hazard ratios for all variables in the multivariable models. Table S3. Kaplan Meier point estimates (%) at 1 and 5 years for each clinical outcome stratified by baseline TG and age >40 and ≤40 years. Table S4. Kaplan Meier point estimates at 1 and 5 years for each clinical outcome stratified by baseline TG and prior pancreatitis. Table S5. Hazard ratios and 95% confidence intervals from multivariable cox regression models using patients peak triglyceride record over 12 months. Table S6. Hazard ratios and 95% confidence intervals from multivariable cox regression models using complete-cases only (complete-cases n=505,579 overall and n= 446,091 for the subset of diabetes-free patients). Figure S1. Kaplan Meier curves for association of triglycerides and clinical outcomes stratified by age >40 and ≤40 years. Figure S2. Hazard ratios for triglyceride values and clinical outcomes, adjusted for age and sex and stratified by Age ≤ 40 or > 40 years. Figure S3. Kaplan Meier curves for association of triglycerides and clinical outcomes stratified by prior pancreatitis. Figure S4. Hazard ratios for triglyceride values and clinical outcomes, adjusted for age and sex and stratified by prior pancreatitis. Figure S5. Multivariable adjusted association between triglycerides and each endpoint. Triglyceride level was fitted in the model using restricted cubic splines (3 knot points).
Remarks on Resonant Scalars in the AdS/CFT Correspondence
Creators: name: Banados, M.
name: Schwimmer, A.
name: Theisen, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The special properties of scalars having a mass such that the two possible dimensions of the dual scalar respect the unitarity and the Breitenlohner-Freedman bounds and their ratio is integral (``resonant scalars'') are studied in the AdS/CFT correspondence. The role of logarithmic branches in the gravity theory is related to the existence of a trace anomaly and to a marginal deformation in the Conformal Field Theory. The existence of asymptotic charges for the conformal group in the gravity theory is interpreted in terms of the properties of the corresponding CFT.
description: 16 pages, 1 figure
Single Ion Thermal Wave Packet Analyzed Via Time-Of-Flight Detection
Creators: name: Stopp, Felix
name: Ortiz-Gutiérrez, Luis
name: Lehec, Henri
name: Schmidt-Kaler, Ferdinand
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A single $^{40}$Ca ion is confine in the harmonic potential of a Paul trap and cooled to a temperature of a few mK, with a wave packet of sub-m spatial and sub-m/s velocity uncertainty. Deterministically extracted from the Paul trap, the single ion is propagating over a distance of 0.27 m and detected. By engineering the ion extraction process on the initial wave packet, theoretically modeling the ion trajectories, and studying experimentally the time-of-flight distribution, we directly infer the state of the previously trapped ion. This analysis allows for accurate remote sensing of the previous motional excitation in the trap potential, both coherently or incoherently. Our method paves a way to extract, manipulate and design quantum wave packets also outside of the Paul trap.
Υπολογισμοί στην αντιμεταθετική άλγεβρα και αλγεβρική γεωμετρία με το Macaulay2: ένας οδηγός χρήσης με παραδείγματα
Creators: name: Αρβανιτάκης, Δημήτριος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αντιμεταθετική άλγεβρα
Αλγεβρική γεωμετρία
Ακέραιος προγραμματισμός
Macaulay2
Commutative algebra
Algebraic geometry

description: Σκοπός της διπλωματικής εργασίας ήταν η παρουσίαση ενός οδηγού χρήσης του λογισμικού Macaulay2 το οποίο αναπτύχθηκε για να βοηθήσει στην έρευνα των πεδίων της αντιμεταθετικής άλγεβρας και της αλγεβρικής γεωμετρίας. Παρουσιάσαμε αναλυτικές οδηγίες εγκατάστασης του προγράμματος Macaulay2 για τα Windows10, ενώ στη συνέχεια περιγράψαμε το περιβάλλον λειτουργίας του και τις βασικότερες εντολές του. Επιπλέον δείξαμε πώς το Macaulay2 μπορεί να χρησιμοποιηθεί στην αντιμεταθετική άλγεβρα, στην αλγεβρική γεωμετρία και σε προβλήματα του ακέραιου προγραμματισμού
description: The aim of this thesis was to present a manual of Macaulay2 which is a software system devoted to supporting research in commutative algebra and algebraic geometry. We presented detailed instructions for installing of Macaulay2 on Windows10. We also descrided its environment and its basic commands. Furthermore we showed how Macaulay2 can be used in commutative algebra, algebraic geometry and in problems of integer programming
The effects of experience and test revision on the rate of practitioners’ clerical errors on the WISC-R and WISC-III
Creators: name: Klassen, Robert Mark
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to investigate the effect of test revision and examiner experience on the rate of examiner clerical error on the Wechsler Intelligence Scale for Children - Revised (WISC-R) and the Wechsler Intelligence Scale for Children - Third Edition (WISC-III). A total of seven school psychologists provided a sample of 252 protocols: 18 from each psychologist for the WISC-R, and 18 from each psychologist for the WISC-III. The errors tabulated consisted of clerical errors only, that is, addition of subtest raw and scaled scores, computation of chronological age, transformation from tables of raw score to scaled scores, and transformation of scaled scores to IQ scores. Clerical errors were found on 38% of WISC-R protocols, and 42% of WISC-III protocols. Errors caused by incorrect addition of raw scores were the most common error type. No significant difference was found between the two tests for any of the types of clerical errors. A positive but statistically non-significant correlation was found between examiners’ years of experience on the WISC-R and number of errors made. On the WISC-III only, a comparison was made between the clerical error rate at the beginning of usage of the test, and the clerical error rate in two time periods in the 12 months following the beginning of usage of the test. With overall errors, no significant difference was found between the three time periods. However, examiners made significantly more Full Scale IQ-changing errors at the beginning of WISC-III administration than they did in the third six-month time period. It was suggested that test publishers provide clear directions on the actual protocol to test users to help lower the rate of clerical errors. It was also suggested that because of the high rate of clerical errors at the beginning of the use of the WISC-III, practitioners need formal retraining on a test when it is revised.