cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analytical reconstruction of isotropic turbulence spectra based on the Gaussian transform
Creators: name: Wohlbrandt, Attila
name: Hu, Nan
name: Guerin, Sebastien
name: Ewert, Roland
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The Random Particle Mesh (RPM) method used to simulate turbulence-induced broadband noise in several aeroacoustic applications is extended to realise isotropic turbulence spectra. With this method turbulent fluctuations are synthesised by filtering white noise with a Gaussian filter kernel that in turn gives a Gaussian spectrum. The Gaussian function is smooth and its derivatives and integrals are again Gaussian functions. The Gaussian filter is efficient and finds wide-spread applications in stochastic signal processing. However in many applications Gaussian spectra do not correspond to real turbulence spectra. Thus in turbo-machines the von Kármán, Liepmann, and modified von Kármán spectra are more realistic model spectra. In this note we analytically derive weighting functions to realise arbitrary isotropic solenoidal spectra using a superposition of weighted Gaussian spectra of different length scales. The analytic weighting functions for the von Kármán, the Liepmann, and the modified von Kármán spectra are derived subsequently. Finally a method is proposed to discretise the problem using a limited number of Gaussian spectra. The effectivity of this approach is demonstrated by realising a von Kármán velocity spectrum using the RPM method.
description: Preprint, submitted to Computers & Fluids
Results evaluation in special and intercultural education
Creators: name: Cottini, Lucio
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2016

description: La valutazione dei risultati nella didattica speciale e interculturale.
description: Form@re - Open Journal per la formazione in rete, Vol. 16 No. 3 (2016): Results evaluation in special and intercultural education
MPEC 2024-R162 : 2014 FN33
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
MPEC 2024-R163 : 2016 CE137
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Reflecting through the designing: a brief analysis of the teacher’s planning process
Creators: name: Anello, Francesca
Publisher: name: Form@re - Open Journal per la formazione in rete
Year: 2016

description: The aim of this work is to study the conditions in which teachers plan and execute educational actions in the classroom and to find out which difficulties they encountered during the development of the planned teaching action. The “concrete operations” that 15 teachers in the Palermo area had accomplished, were highlighted before, during and after every structured activity to promote the pupils’ oral expression. Specifically, the research, which is collocated in the case study, had the function of verifying forty descriptors. These were grouped in the five cardinal points of the ADDIE model (Analysis, Design, Development, Implementation, Evaluation), with a motivated group of teachers that were formed during the action-research. To check intentions and behaviors of teachers, tools for self-analysis were built, individual notes and shared reports of the practice were used. The teachers found that the proposed projected device, initially, designed with 40 descriptors was not practical and chose only 20 of these. A simplified and flexible model is now available for the didactical preparation of the activities. Riflettere attraverso la progettazione: breve analisi del processo di programmazione didattica dell’insegnante L’obiettivo del contributo è indagare le condizioni in cui gli insegnanti pianificano e realizzano un intervento in classe, e quali difficoltà incontrano nelle fasi di sviluppo dell’azione didattica programmata. Sono state evidenziate le “operazioni concrete” che 15 insegnanti del territorio di Palermo hanno compiuto prima, durante e dopo un’attività strutturata per promuovere negli alunni l’espressione orale. Nello specifico la ricerca, che si colloca nella tipologia dello studio di caso, si è occupata di verificare la funzionalità di 40 descrittori, raggruppati nei cinque punti cardine del modello ADDIE (Analysis, Design, Development, Implementation, Evaluation), con un gruppo motivato di insegnanti che si erano formati durante una ricerca-azione. Per precisare intenzioni e comportamenti dei docenti sono stati costruiti strumenti di autoanalisi e ci si è avvalsi della scrittura individuale e del resoconto condiviso della pratica. Gli insegnanti hanno trovato poco funzionale il dispositivo progettuale con 40 descrittori inizialmente proposti e ne hanno scelti 20; ora è disponibile un modello semplificato e flessibile per la progettazione delle attività didattiche.
description: Form@re - Open Journal per la formazione in rete, Vol. 16 No. 3 (2016): Results evaluation in special and intercultural education
40Ar/39Ar ages of lunar impact glasses: Relationships among Ar diffusivity, chemical composition, shape, and size
Creators: name: Zellner, N. E. B.
name: Delano, J. W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Lunar impact glasses, quenched melts produced during cratering events on the Moon, have the potential to provide not only compositional information about both the local and regional geology of the Moon but also information about the impact flux over time. We present in this paper the results of 73 new 40Ar/39Ar analyses of well-characterized, inclusion-free lunar impact glasses and demonstrate that size, shape, chemical composition, fraction of radiogenic 40Ar retained, and cosmic ray exposure (CRE) ages are important for 40Ar/39Ar investigations of these samples. Specifically, analyses of lunar impact glasses from the Apollo 14, 16, and 17 landing sites indicate that retention of radiogenic 40Ar is a strong function of post-formation thermal history in the lunar regolith, size, and chemical composition. Based on the relationships presented in this paper, lunar impact glasses with compositions and sizes sufficient to have retained 90% of their radiogenic Ar during 750 Ma of cosmic ray exposure at time-integrated temperatures of up to 290 K have been identified and are likely to have yielded reliable 40Ar/39Ar ages of formation. Additionally, ~50% of the identified impact glass spheres have formation ages of <500 Ma, while ~75% of the identified lunar impact glass shards and spheres have ages of formation <2000 Ma. The observed age-frequency distribution of lunar impact glasses may reflect two processes: (i) diminished preservation due to spontaneous shattering with age; and (ii) preservation of a remnant population of impact glasses from the tail end of the terminal lunar bombardment having 40Ar/39Ar ages up to 3800 Ma. A protocol is described for selecting and analyzing lunar impact glasses.
description: Please contact Zellner (nzellner@albion.edu) for data tables and other supplemental information
Phenomenology of Automatism. Habit and Situational Typification in Husserl
Creators: name: Ferencz-Flatz, Christian
Publisher: name: Phenomenology and Mind
Year: 2016

description: This paper tries to document Husserl’s reflections on the problem of “situations” in his later manuscripts of the 1930s. These reflections are centered on the phenomenon of “typificiation”, which plays an important part in Husserl’s genetic phenomenology. Thus, the paper starts by sketching out a general presentation of “typification” in its relation to expectation and habit. By defining situation as “the intentional living unity of horizontal context and subjective potentiality”, the paper then tries to follow Husserl’s exposition of three essential aspects of situational typification: a.) the habituality of interest; b.) normality and c.) periodicity.
description: Phenomenology and Mind, No 6 (2014): Mind, Habits and Social Reality
(102873) Charles Forbes Sealy
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Compliant Mechanism Synthesis Using Nonlinear Elastic Topology Optimization with Variable Boundary Conditions
Creators: name: Alacoque, Lee R.
name: Bhattacharyya, Anurag
name: James, Kai A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: In topology optimization of compliant mechanisms, the specific placement of boundary conditions strongly affects the resulting material distribution and performance of the design. At the same time, the most effective locations of the loads and supports are often difficult to find manually. This substantially limits topology optimization's effectiveness for many mechanism design problems. We remove this limitation by developing a method which automatically determines optimal positioning of a prescribed input displacement and a set of supports simultaneously with an optimal material layout. Using nonlinear elastic physics, we synthesize a variety of compliant mechanisms with large output displacements, snap-through responses, and prescribed output paths, producing designs with significantly improved performance in every case tested. Compared to optimal designs generated using best-guess boundary conditions used in previous studies, the mechanisms presented in this paper see performance increases ranging from 47%-380%. The results show that nonlinear mechanism responses may be particularly sensitive to boundary condition locations and that effective placements can be difficult to find without an automated method.
description: 30 pages, 14 figures, 4 tables. Version 2: Corrected an error in the formulation of the strain energy interpolation scheme, leading to minor changes in the results. International Journal for Numerical Methods in Engineering. 2025
A flag vector of a 3-sphere that is not the flag vector of a 4-polytope
Creators: name: Brinkmann, Philip
name: Ziegler, Günter M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B05, 52B11, 52B40

description: We present a first example of a flag vector of a polyhedral sphere that is not the flag vector of any polytope. Namely, there is a unique 3-sphere with the parameters $(f_0,f_1,f_2,f_3;f_{02})=(12,40,40,12;120)$, but this sphere is not realizable by a convex 4-polytope. The 3-sphere, which is 2-simple and 2-simplicial, was found by Werner (2009); we present results of a computer enumeration which imply that the sphere with these parameters is unique. We prove that it is non-polytopal in two ways: First, we show that it has no oriented matroid, and thus it is not realizable; this proof was found by computer, but can be verified by hand. The second proof is again a computer-based oriented matroid proof and shows that for exactly one of the facets this sphere does not even have a diagram based on this facet. Using the non-polytopality, we finally prove that the sphere is not even embeddable as a polytopal complex.
description: 12 pages; extended version with new results, in particular that the sphere is not embeddable
A class of Discontinuous Galerkin methods for nonlinear variational problems
Creators: name: Grekas, Georgios
name: Koumatos, Konstantinos
name: Makridakis, Charalambos
name: Vikelis, Andreas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: (Primary) 65N30, 49J45

description: In the context of Discontinuous Galerkin methods, we study approximations of nonlinear variational problems associated with convex energies. We propose element-wise nonconforming finite element methods to discretize the continuous minimisation problem. Using $Γ$-convergence arguments we show that the discrete minimisers converge to the unique minimiser of the continuous problem as the mesh parameter tends to zero, under the additional contribution of appropriately defined penalty terms at the level of the discrete energies. We finally substantiate the feasibility of our methods by numerical examples.
Habit and Mind. On the Teleology of Mental Habits
Creators: name: Zhok, Andrea
Publisher: name: Phenomenology and Mind
Year: 2016

description: In the following pages we shall discuss the notion of habit in sight of its role in the constitution of meaning. We make use of Wittgenstein’s analysis of rule following to show the crucial role played by habits in the establishment of verbal meanings. Then, we show how habits can be established according to the Peircian model of abduction. The generalizing power of abduction (and habit) is explained in terms of teleological motivation, whose roots we expose by means of Husserl’s analyses on passive synthesis. Finally, we draw the conclusion that the notion of habit may lead to a “non-naturalistic naturalization” of mind, that is, a “naturalization” opposed to both objectivistic and reductionist accounts of mind.
description: Phenomenology and Mind, No 6 (2014): Mind, Habits and Social Reality
(102887) Unknown Potter
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Proximity Driven Enhanced Magnetic Order at Ferromagnetic Insulator / Magnetic Topological Insulator Interface
Creators: name: Li, Mingda
name: Chang, Cui-Zu
name: Kirby, Brian. J.
name: Jamer, Michelle
name: Cui, Wenping
name: Wu, Lijun
name: Zhu, Yimei
name: Heiman, Don
name: Li, Ju
name: Moodera, Jagadeesh
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic exchange driven proximity effect at a magnetic insulator / topological insulator (MI/TI) interface provides a rich playground for novel phenomena as well as a way to realize low energy dissipation quantum devices. Here we report a dramatic enhancement of proximity exchange coupling in the MI / magnetic-TI EuS / Sb$_{2-x}$V$_x$Te$_3$ hybrid heterostructure, where V doping is used to drive the TI (Sb$_{2}$Te$_3$) magnetic. We observe an artificial antiferromagnetic-like structure near the MI/TI interface, which may account for the enhanced proximity coupling. The interplay between the proximity effect and doping provides insights into controllable engineering of magnetic order using a hybrid heterostructure.
description: 5 pages, 4 figures
Coarse Grain Spectral Analysis of the grass for delta Scuti stars
Creators: name: Forteza, Sebastià Barceló
name: Pascual-Granado, Javier
name: Suárez, Juan Carlos
name: Hernández, Antonio García
name: Lares-Martíz, Mariel
Publisher: name: Zenodo
Year: 2022

description: delta Scuti stars are far from being understood as much as solar-like pulsators. One of the open questions on these stars started with the first long-run observations of CoRoT from space. To observe the so-called grass (i.e. the low-amplitude signature of their power spectra), long duration, high photometric precision and high duty cycle light curves are needed which are impossible to gather from ground-based observatories. Its origin is still a long-standing debate but the presence of a flat plateau may be related with extrinsic or intrinsic processes of this kind of stars such as fast rotation. Here we deeply study the grass not only analysing the reliable harmonic variations but using the Coarse Grain Spectral Analysis (CGSA) to characterize its fractal signature. We applied this methodology to a sample of well-known delta Scuti stars observed by TESS space telescope approximately for a year. Our results point to a dependence of the grass with rotation and also with time.
On absolute linear Harbourne constants
Creators: name: Dumnicki, Marcin
name: Harrer, Daniel
name: Szpond, Justyna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14C20, 52C30, 05B30

description: In the present note we study absolute linear Harbourne constants. These are invariants which were introduced in order to relate the lower bounds on the selfintersection of negative curves on birationally equivalent surfaces to the complexity of the birational map between them. We provide various lower and upper bounds on Harbourne constants and give their values for the number of lines $s$ of the form $p^{2r}+p^r+1$ for any prime number $p$ and also for all values of $s$ up to $31$. This extends considerably earlier results of the third author.
description: 16 pages, includes a SINGULAR script, v2. simplified proof of the main result
(102891) Frederick William Govier
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
IMPLEMENTING A DEPRESSION SCREENING PROTOCOL IN A PRIMARY CARE PRACTICE
Creators: name: Stroh, Alison
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: Background: Major Depressive Disorder (MDD), a life-threatening psychiatric illness, is the most significant global cause of disability, with approximately 300 million people affected (Maurer, Raymond, & Davis, 2018). When the signs and symptoms are unrecognized or left untreated, MDD increases the risk of medical comorbidities, particularly heart disease, stroke, Alzheimer’s disease, obesity, and diabetes (Maurer, Raymond, & Davis, 2018). Untreated MDD also increased the risk of suicide by 0.5-4% compared to the general population, and completed suicides are the 10th leading cause of death in the United States (Maurer, Raymond, & Davis, 2018).      Objective: To assist a midsize patient-centered medical home (PCMH) in North Carolina to integrate and sustain a standardized screening protocol for MDD using the PHQ-9.      Methods: Develop a standardized depression screening protocol algorithm to initiate depression screening in a primary care practice. Measure rate of screening by each provider involved in the project and determine if the subsequent management of the patient with a positive screen was appropriate. Determine if provider satisfaction increased with a standardized protocol for depression screening.      Results: During this quality improvement project, 65 adults aged 18-65, were assessed for the signs and symptoms of depression using the PHQ-9. A total of 107 patients fit the inclusion       criteria for screening for a screening rate of 60.74%. As a result of this screening, 3 patients scored at or above the threshold of 10 on the PHQ-9 screening tool and adherence to the implemented protocol was observed. Screening rates for patients between the ages of 18-65 attending either a new patient or yearly physical appointment, approximately 17% of the total patient population at this primary care practice, increased from 1.59% to 60.49%.  All three providers that participated in the project acknowledged that their satisfaction with depression screening improved.      Conclusion: This quality improvement project has shown that implementing a depression screening protocol in a primary care setting can improve patient outcomes and improve provider satisfaction.
Phenomenological Considerations of Habit: Reason, Knowing and Self-Presence in Habitual Action
Creators: name: McGuirk, James
Publisher: name: Phenomenology and Mind
Year: 2016

description: Paul Ricoeur claims in Freedom and Nature that delimiting the domain of habit is deeply challenging, owing to the fact that we tend not to know exactly what it is that we are asking about. Habit, he says, is not like acting, sensing or perceiving but is more akin to a way of sensing, perceiving and so on. It has to do with settled or dispositional ways of engaging the world that provides a form to our world relations. But what is the status of these ways of acting etc.? In ordinary discourse, habits are often thought of as good or bad and even as important to shaping our personal and social identities. But they tend also to be thought of as actions in which the free exercise of reason is deeply attenuated, as automatic responses conditioned over time which are triggered by the environment such that we act ‘before we know what we are doing’. In what follows, I want to offer some reflections about the nature of the relationship between habitual action, reason and knowledge. I will draw mostly on the phenomenological tradition in asking the question whether habits denote performances in which thinking is absent or whether they involve a spontaneity in which the embodied and embedded subject comes to expression as subject. In doing so, I will (1) sketch an outline of the largely negative view of habit that tends to dominate specialized and ordinary understandings of the matter before, (2) looking to phenomenological insights that offer a more positive view by integrating the notion of habit with discussions of embodiment and hermeneutic consciousness. Here, I will refer to the work of Merleau-Ponty and Ricoeur, for whom habit is an irreplaceable way of knowing the world. My claim is that these phenomenological resources are not only important in establishing the centrality of habit for identity formation, as Husserl and Merleau-Ponty do, but that they entail a unique form of knowing or exercise of reason which is dynamic, attentive and imaginative.
description: Phenomenology and Mind, No 6 (2014): Mind, Habits and Social Reality
(102893) Charles Crocker
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
MPEC 2024-R164 : 2023 QL7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Husserl's Concept of Position-taking and Second Nature
Creators: name: Arango, Alejandro
Publisher: name: Phenomenology and Mind
Year: 2016

description: I argue that Husserl’s concept of position-taking, Stellungnahme, is adequate to understand the idea of second nature as an issue of philosophical anthropology. I claim that the methodological focus must be the living subject that acts and lives among others, and that the notion of second nature must respond to precisely this fundamental active character of subjectivity. The appropriate concept should satisfy two additional desiderata. First, it should be able to develop alongside the biological, psychological, and social individual development. Second, it should be able to underlie the vast diversity of human beings within and across communities. As possible candidates, I contrast position-taking with two types of habit-like concepts: instinct and habitus, on the one hand, and customary habits, on the other. I argue that position-taking represents the active aspect of the subject while the habit-like concepts are passive. A subject’s position-takings and ensuing comportments are tied together by motivations, which evince a certain consistency, and for this reason are expression of the subject’s identity. I conclude by nuancing the relation between Stellungnahme and passivity. Passivity is deemed necessary to action but subservient to it; position-taking is thought to be prior to passivity.
description: Phenomenology and Mind, No 6 (2014): Mind, Habits and Social Reality
title: Nasomaxillary Hypoplasia: A Case of Binder Phenotype
Creators: name: Priyadharshinee, Gayathri
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Head & neck imaging
subject: Foetal imaging
subject: Head and neck
subject: Ultrasound
subject: Education
subject: Congenital
subject: Obstetrics
subject: Clinical Cases

description: Clinical History: 27-year-old primigravida with spontaneous conception presented for routine anomaly ultrasound scan. There is no significant family history of birth defects or consanguinity.

description: 27 years, female
Measuring chemical abundances in AGN from infrared nebular lines: HII-CHI-Mistry-IR for AGN
Creators: name: Pérez-Díaz, Borja
name: Pérez-Montero, Enrique
name: Fernández-Ontiveros, Juan Antonio
name: Vílchez, Jose M.
Publisher: name: Zenodo
Year: 2022

description: Future and on-going infrared and radio observatories such as JWST, METIS or ALMA will increase the amount of rest-frame IR spectroscopic data for galaxies by several orders of magnitude. While studies of the chemical composition of the ISM based on optical observations have been widely spread over decades for SFG and, more recently, for AGN, similar studies need to be performed using IR data. This regime can be especially useful in the case of AGN given that it is less affected by temperature and dust extinction, traces higher ionic species and can also provide robust estimations of the chemical abundance ratio N/O. We present a new tool based on a bayesian-like methodology (HII-CHI-Mistry-IR) to estimate chemical abundances from IR emission lines in AGN. We use a sample of 58 AGN with IR spectroscopic data retrieved from the literature, composed by 43 Seyferts, 8 ULIRGs, 4 LIRGs and 3 LINERs, to probe the validity of our method. The estimations of the chemical abundances based on IR lines in our sample are later compared with the corresponding abundances derived from the optical emission lines in the same objects. This tool takes advantage of photoionization models, characterized by the chemical abundance ratios O/H and N/O and the ionization parameter U, to compare their predicted emission-line fluxes with a set of observed values. Instead of matching single emission lines, the code uses some specific emission-line ratios sensitive to the above free parameters. We report mainly solar and also subsolar abundances for O/H in the nuclear region for our sample of AGN, whereas N/O clusters around solar values. We find a discrepancy between the chemical abundances derived from IR and optical emission lines, being the latter higher than the former. This discrepancy, also reported by previous studies of the composition of the ISM in AGN from IR observations, is independent from the gas density or the incident radiation field to the gas, and it is likely associated with dust obscuration and/or temperature stratification within the gas nebula.
Tunable Splitting of the Ground-State Degeneracy in 1D Parafermionic Wires
Creators: name: Chen, Chun
name: Burnell, F. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Systems with topologically protected ground-state degeneracies are currently of great interest due to their potential applications in quantum computing. In practise this degeneracy is never exact, and the magnitude of the ground-state degeneracy splitting imposes constraints on the timescales over which information is topologically protected. In this Letter we use an instanton approach to evaluate the splitting of topological ground-state degeneracy in quasi-1D systems with parafermion zero modes, in the specific case where parafermions are realized by inducing a superconducting gap in pairs of fractional quantum Hall edges. We show that, like 1D topological superconducting wires, this splitting has an oscillatory dependence on the chemical potential, which arises from an intrinsic Berry phase that produces interference between distinct instanton tunneling events. These Berry phases can be mapped to chiral phases in a (dual) quantum clock model using a Fradkin-Kadanoff transformation. Comparing our low-energy spectrum to that of phenomenological parafermion models allows us to evaluate the real and imaginary parts of the hopping integral between adjacent parafermionic zero modes as a function of the chemical potential.
description: Updated version containing analysis of spatially varying fluctuations
Computer simulation of Poisson's ratio of soft polydisperse discs at zero temperature
Creators: name: Narojczyk, Jakub
name: Wojciechowski, Krzysztof W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A simple algorithm is proposed for studies of structural and elastic properties in the presence of structural disorder at zero temperature. The algorithm is used to determine the properties of the polydisperse soft disc system. It is shown that the Poisson's ratio of the system essentially depends on the size polydispersity parameter - larger polydispersity implies larger Poisson's ratio. In the presence of any size polidispersity the Poisson's ratio increases also when the interactions between the particles tend to the hard potential.
description: 8th International Conference on Intermolecular and Magnetic Interactions in Matter, Naleczow, POLAND, SEP 08-10, 2005
title: Cyclo-oxygenase 2 is expressed in the wall brain AVM vessels and associates with inflammation – a putative mediator of vessel wall remodeling in brain AVMs
Creators: name: Keränen, Sara
name: Suutarinen, Santeri
name: Laakkkonen, Johanna
name: Guo, Diana
name: Pawlikowska, Ludmila
name: Jahromi, Behnam Rezai
name: Rauramaa, Tuomas
name: Krings, Timo
name: Koivisto, Timo
name: Lawton, Michael T.
name: Radovanovic, Ivan
name: Kim, Helen
name: Faughnan, Marie
name: Frösen, Juhana
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Objective: Arteriovenous malformations in the brain (bAVM) may rupture causing severe disability or death. Currently there is no medical therapy to prevent AVM hemorrhage. BAVMs are characterized by abnormally high flow that has been shown to trigger degenerative expansive remodelling in other vessels.[for full text, please go to the a.m. URL]
description: 70. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Skandinavischen Gesellschaft für Neurochirurgie
Strong IR Cancellation in Heavy Quarkonium and Precise Top Mass Determination
Creators: name: Kiyo, Y.
name: Mishima, G.
name: Sumino, Y.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Combining recent perturbative analyses on the static QCD potential and the quark pole mass, we find that, for the heavy quarkonium states $c\bar{c}$, $b\bar{b}$ and $t\bar{t}$, (1) ultra-soft (US) corrections in the binding energies are small, and (2) there is a stronger cancellation of IR contributions than what has been predicted by renormalon dominance hypothesis. By contrast, for a hypothetical heavy quarkonium system with a small number of active quark flavors ($n_l\approx 0$), we observe evidence that renormalon dominance holds accurately and that non-negligible contributions from US corrections exist. In addition, we examine contributions of renormalons at $u=- 1$. As an important consequence, we improve on a previous prediction for possible achievable accuracy of top quark $\overline{\rm MS}$--mass measurement at a future linear collider and estimate that in principle 20--30~MeV accuracy is reachable.
description: 17 pages, 7 figures, 3 tables; Revisions in ver.2: We added (i) a more conservative error estimate of m_t determination, (ii) discussion on u=+1 and u=-1 renormalons, (iii) interpretation of PS-scheme
Intermittent optical frequency measurements to reduce the dead time uncertainty of frequency link
Creators: name: Hachisu, Hidekazu
name: Ido, Tetsuya
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The absolute frequency of the $^{87}{\rm Sr}$ lattice clock transition was evaluated with an uncertainty of $1.1\times 10^{-15}$ using a frequency link to the international atomic time (TAI). The frequency uncertainty of a hydrogen maser used as a transfer oscillator was reduced by homogeneously distributed intermittent measurement over a five-day grid of TAI. Three sets of four or five days measurements as well as systematic uncertainty of the clock at $8.6\times 10^{-17}$ have resulted in an absolute frequency of $^{87}{\rm Sr}\ {}^1S_0 - {}^3P_0$ clock transition to be 429 228 004 229 872.85 (47) Hz.
Symmetries of Fano varieties
Creators: name: Esser, Louis
name: Ji, Lena
name: Moraga, Joaquín
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J45, 14J50 (Primary), 14E07, 14M10 (Secondary)

description: We study Fano varieties endowed with a faithful action of a symmetric group, as well as analogous results for Calabi--Yau varieties, and log terminal singularities. We show the existence of a constant $m(n)$, so that every symmetric group $S_k$ acting on an $n$-dimensional Fano variety satisfies $k \leq m(n)$. We prove that $m(n)> n+\sqrt{2n}$ for every $n$. On the other hand, we show that $\lim_{n\to \infty} m(n)/(n+1)^2 \leq 1$. However, this asymptotic upper bound is not expected to be sharp.
 We obtain sharp bounds for certain classes of varieties. For toric varieties, we show that $m(n)=n+2$ for $n\geq 4$. For Fano quasismooth weighted complete intersections, we prove the asymptotic equality $\lim_{n\to \infty} m(n)/(n+1)=1$. Among the Fano weighted complete intersections, we study the maximally symmetric ones and show that they are closely related to the Fano--Fermat varieties, i.e., Fano complete intersections in $\mathbb P^N$ cut out by Fermat hypersurfaces.
 Finally, we draw a connection between maximally symmetric Fano varieties and boundedness of Fano varieties. For instance, we show that the class of $S_8$-equivariant Fano $4$-folds forms a bounded family. In contrast, the $S_7$-equivariant Fano $4$-folds are unbounded.
description: 32 pages, 3 tables
When the Facts “Call Down Vengeance”. Feeling of Revenge, Sensibiility to Injustices and (A Hint At) Retributive Justice in Scheler’s Formalismus
Creators: name: Guccinelli, Roberta
Publisher: name: Phenomenology and Mind
Year: 2016

description: The aim of this paper is to provide an elucidation of what, at first sight, appears as a specific and negative affective phenomenon, namely that of revenge, which although its sinister popularity risks constantly to be muddled with a simple state of excitement deprived of intentionality or with a kind of “ justice without justice”. The understanding of the nature of revenge and of impulse of revenge allows to enlighten a peculiar feeling’s class, to which revenge in a certain sense belongs to, and to investigate the meaning and the sense of Scheler’s ambiguous term “Vergeltung” in order to attribute to retributive model of justice, by a comparison with revenge, its correct role and place in the world of Scheler’s. Our back-idea is the one, according to which, refining sensibility to injustices can contribute to a primary form of identity, namely that of our living body.
description: Phenomenology and Mind, No 5 (2013): The Place of Values in a World of Norms
Requiredness. An Argument for Value-Realism
Creators: name: De Monticelli, Roberta
Publisher: name: Phenomenology and Mind
Year: 2016

description: What is An analysis of Requiredness? This paper presents three versions of an argument in defence of a form of value-realism. The argument is based on a principle of nonreducibility of integral wholes to sums, as informally developed by Gestalt theorists, systematically worked out by Husserl in his III Logical Investigation on wholes and parts, and exploited by Max Scheler’s theory of material and axiological apriori.
description: Phenomenology and Mind, No 5 (2013): The Place of Values in a World of Norms
Values, Normativity and Facts
Creators: name: Ferrarello, Susi
Publisher: name: Phenomenology and Mind
Year: 2016

description: This paper has three goals: 1. To describe the relationship between values, facts and norms. 2. To consider if norms are a constituent part of the essence of values. 3. To define the boundaries of the axiology. To reach these goals I will present an historical-phenomenological reconstruction of the relationship between values, norms and fact. Starting from Brentano and his school I will focus on those disciples that directly or indirectly borrowed and improved Brentano’s idea of analogy.
description: Phenomenology and Mind, No 5 (2013): The Place of Values in a World of Norms
(102857) Frederick Albert Higgitt
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Measurement of radial velocities and velocity dispersions using MEGARA data
Creators: name: Zamora, Sandra
name: Beltrán, Ángeles Díaz
Publisher: name: Zenodo
Year: 2022

description: Cross-correlation techniques have been applied since 1974 (see Simkin) in order to calculate objects’ redshift and velocity dispersions from the center and the width of the cross-correlation peak respectively. In 1979, Tonry and Davis detailed a correlation analysis based in the Fourier Method. It provides a determination of cross correlation function operationally straightforward and with an internal error measure of the correlation peak. In this work, we have adapted this method to implement it to very high spectral resolution data in red wavelengths and have developed a python package that can be used to calculate it automatically. We present an example of the correlation function using observations from MEGARA instrument at the 10.4-m GTC. We have used HR-I setup (VPH863-HR grating) that cover a wavelength range between 8380 and 8882 A and provide a velocity dispersion limit around 14.6 km/s (FWHM).The algorithms developed in this work will be published soon and will be available in the standard Python distribution channels.
title: Periodontitis and gingival bleeding associate with intracranial aneurysms and risk of aneurysmal subarachnoid haemorrhage
Creators: name: Hallikainen, Joona
name: Lindgren, Antti
name: Savolainen, Jarno
name: Selander, Tuomas
name: Jula, Antti
name: Närhi, Matti
name: Koivisto, Timo
name: Kellokoski, Jari
name: Ylöstalo, Pekka
name: Suominen, Anna Liisa
name: Frösen, Juhana
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Objective: Oral bacteria DNA has been found in intracranial aneurysms (IA) and high prevalence of periodontitis reported in case series of IA patients. Since periodontitis predisposes to the development and progression of other aneurysms, we investigated whether periodontitis or gingival inflammation[for full text, please go to the a.m. URL]
description: 70. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Skandinavischen Gesellschaft für Neurochirurgie
Norms without Values. Philosophical Reﬂections on Carl Schmitt’s Tyranny of Values
Creators: name: Premoli De Marchi, Paola
Publisher: name: Phenomenology and Mind
Year: 2016

description: In his work on The Tyranny of Values (1954) Carl Schmitt argues that the use of values to justify norms necessarily leads to fanaticism and violence, and therefore must be rejected. This paper aims to show Schmitt’s philosophical assumptions that result from the view of man as dangerous and selfish, and of value as dependent from human will and not from some objective knowledge. As Scheler objected to Weber, the rejection of objective values cannot defend man from arbitrariness and irrationality. Schmitt himself tried to justify norms with the sovereign’s decision, but later realized that this way is not sufficient.
description: Phenomenology and Mind, No 5 (2013): The Place of Values in a World of Norms
Trapped ion scaling with pulsed fast gates
Creators: name: Bentley, C. D. B.
name: Carvalho, A. R. R.
name: Hope, J. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fast entangling gates for trapped ions offer vastly improved gate operation times relative to implemented gates, as well as approaches to trap scaling. Gates on neighbouring ions only involve local ions when performed sufficiently fast, and we find that even a fast gate between distant ions with few degrees of freedom restores all the motional modes given more stringent gate speed conditions. We compare pulsed fast gate schemes, defined by a timescale faster than the trap period, and find that our proposed scheme has less stringent requirements on laser repetition rate for achieving arbitrary gate time targets and infidelities well below $10^{-4}$. By extending gate schemes to ion crystals, we explore the effect of ion number on gate fidelity for coupling neighbouring pairs of ions in large crystals. Inter-ion distance determines the gate time, and a factor of five increase in repetition rate, or correspondingly the laser power, reduces the infidelity by almost two orders of magnitude. We also apply our fast gate scheme to entangle the first and last ions in a crystal. As the number of ions in the crystal increases, significant increases in the laser power are required to provide the short gate times corresponding to fidelity above 0.99.
description: 29 pages, 10 figures
(102861) Sylvia Joyce [Cutbush]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Spin relaxation in hole-doped transition metal dichalcogenide monolayer and bilayer with the crystal defects
Creators: name: Habe, Tetsuro
name: Koshino, Mikito
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the electronic spin relaxation effect in the hole-doped monolayer and bilayer transition-metal dichalcogenides in the presence of the crystal defects. We consider realistic models of the lattice vacancy and actually estimate the spin relaxation rate using the multi-orbital tight-binding model. In the monolayer, the spin-relaxation time is found to be extremely long compared to the momentum relaxation time, and this is attributed to the fact that the spin hybridization in the band structure is suppressed by the mirror reflection symmetry. The bilayer TMD has a much shorter spin relaxation time in contrast, and this is attributed to stronger spin hybridization due to the absence of the mirror symmetry.
description: 5 pages, 5 figures