cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transition from Coherent Cores to Surrounding Cloud in L1688
Creators: name: Choudhury, Spandan
name: Pineda, Jaime E.
name: Caselli, Paola
name: Offner, Stella S. R.
name: Rosolowsky, Erik
name: Friesen, Rachel K.
name: Redaelli, Elena
name: Chacón-Tanarro, Ana
name: Shirley, Yancy
name: Punanova, Anna
name: Kirk, Helen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stars form in cold dense cores showing subsonic velocity dispersions. The parental molecular clouds display higher temperatures and supersonic velocity dispersions. The transition from core to cloud has been observed in velocity dispersion, but temperature and abundance variations are unknown. We aim to study the transition from cores to ambient cloud in temperature and velocity dispersion using a single tracer. We use NH3 (1,1) and (2,2) maps in L1688 from the Green Bank Ammonia Survey, smoothed to 1', and determine the physical properties from fits. We identify the coherent cores and study the changes in temperature and velocity dispersion from cores to the surrounding cloud. We obtain a kinetic temperature map tracing the extended cloud, improving from previous maps tracing mostly the cores. The cloud is 4-6 K warmer than the cores, and shows a larger velocity dispersion (diff. = 0.15-0.25 km/s). Comparing to Herschel-based measurements, we find that cores show kinetic temperature $\approx$1.8 K lower than the dust temperature; while the gas temperature is higher than the dust temperature in the cloud. We find an average p-NH3 fractional abundance (with respect to H2) of $(4.2\pm0.2) \times 10^{-9}$ towards the coherent cores, and $(1.4\pm0.1) \times 10^{-9}$ outside the core boundaries. Using stacked spectra, we detect two components, one narrow and one broad, towards cores and their neighbourhoods. We find the turbulence in the narrow component to be correlated to the size of the structure (Pearson-r=0.54). With these unresolved regional measurements, we obtain a turbulence-size relation of $σ_{v,NT}\propto r^{0.5}$, similar to previous findings using multiple tracers. We discover that the subsonic component extends up to 0.15 pc beyond the typical coherent boundaries, unveiling larger extents of the coherent cores and showing gradual transition to coherence over ~0.2 pc.
description: 37 pages, 33 figures, 1 table. Accepted for publication in A&A
Elicitation of "Cut and Break" videos
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-140309-09: Elicitation of the Max Planck Institute's "Cut and Break" videos. Verdena describes video clips in Hupa: CB20, CB21, and CB23 to CB27. Reference: Bohnemeyer, J., Bowerman, M., & Brown, P. (2001). Cut and break clips. In S. C. Levinson, & N. J. Enfield (Eds.), Manual for the field season 2001 (pp. 90-96). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.874626.
Il problema (est)etico della rappresentazione: Poor People di William T. Vollmann
Creators: name: Carrara, Giuseppe
Publisher: name: ENTHYMEMA
Year: 2019
Subjects: Vollmann; Poor people; non-fiction; fototesti; reportage.

description: Attraverso il confronto fra Let Us Now Praise Famous Men di James Agee e Walker Evans e Poor People di William T. Vollmann, l’articolo si propone di mostrare come quest’ultimo rifletta e cerchi di risolvere i problemi etici, politici e formali della rappresentazione documentaria. In particolare, si analizzano le modalità attraverso le quali viene problematizzato il processo di mediazione e di fruizione e lo specifico della retorica adottata da Vollmann per rendere conto dell’esperienza di un’alterità subalterna. Through the comparison between James Agee’s and Walker Evans’s Let Us Now Praise Famous Men and William T. Vollmann’s Poor People, this essay focuses on ethical, political and aesthetic problems concerning documentary representation. Namely I analyse the ways in which Vollmann puts the mediation process into question and the rhetoric through which the experience of otherness is depicted in a work of literary non-fiction.
description: ENTHYMEMA, No 23 (2019)
Terahertz rectennas on flexible substrates based on one-dimensional metal-insulator-graphene diodes
Creators: name: Hemmetter, Andreas
name: Yang, Xinxin
name: Wang, Zhenxing
name: Otto, Martin
name: Uzlu, Burkay
name: Andree, Marcel
name: Pfeiffer, Ullrich
name: Vorobiev, Andrei
name: Stake, Jan
name: Lemme, Max C.
name: Neumaier, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Flexible energy harvesting devices fabricated in scalable thin-film processes are important components in the field of wearable electronics and the Internet of Things. We present a flexible rectenna based on a one-dimensional junction metal-insulator-graphene diode, which offers low-noise power detection at terahertz (THz) frequencies. The rectennas are fabricated on a flexible polyimide film in a scalable process by photolithography using graphene grown by chemical vapor deposition. A one-dimensional junction area reduces the junction capacitance and enables operation in the D-band (110 - 170 GHz). The rectenna on polyimide shows a maximum voltage responsivity of 80 V/W at 167 GHz in free space measurements and minimum noise equivalent power of 80 pW/$\sqrt{\text{Hz}}$.
description: 20 pages, 4 figures, 1 table
Damped Lyman-alpha Absorbers from Sloan Digital Sky Survey DR16Q with Gaussian processes
Creators: name: Ho, Ming-Feng
name: Bird, Simeon
name: Garnett, Roman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We present a new catalogue of Damped Lyman-$α$ absorbers from SDSS DR16Q, as well as new estimates of their statistical properties. Our estimates are computed with the Gaussian process models presented in Garnett et al. (2017); Ho et al. (2020) with an improved model for marginalising uncertainty in the mean optical depth of each quasar. We compute the column density distribution function (CDDF) at $2 < z < 5$, the line density ($\textrm{d} N/ \textrm{d} X$), and the neutral hydrogen density ($Ω_{\textrm{DLA}}$). Our Gaussian process model provides a posterior probability distribution of the number of DLAs per spectrum, thus allowing unbiased probabilistic predictions of the statistics of DLA populations even with the noisiest data. We measure a non-zero column density distribution function for $N_{\textrm{HI}} < 3 \times 10^{22} \,\textrm{cm}^{-2}$ with $95\%$ confidence limits, and $N_{\textrm{HI}} \lesssim 10^{22} \,\textrm{cm}^{-2}$ for spectra with signal-to-noise ratios $> 4$. Our results for DLA line density and total hydrogen density are consistent with previous measurements. Despite a small bias due to the poorly measured blue edges of the spectra, we demonstrate that our new model can measure the DLA population statistics when the DLA is in the Lyman-$β$ forest region. We verify our results are not sensitive to the signal-to-noise ratios and redshifts of the background quasars although a residual correlation remains for detections from $z_{\textrm{QSO}} < 2.5$, indicating some residual systematics when applying our models on very short spectra, where the SDSS spectral observing window only covers part of the Lyman-$α$ forest.
description: 21 pages, 19 figures, 9 tables. Minor changes to match version published in MNRAS. Codes are available at https://github.com/jibanCat/gp_dla_detection_dr16q_public
Kissing Dolores
Creators: name: Palleau-Papin, Françoise
Publisher: name: ENTHYMEMA
Year: 2019
Subjects: Photography; Drawing; Self-portraiture; Cross-dressing; Pictorialism; Fotografia; Disegno; Autoritratto; Travestitismo; Pittorialismo

description: In The Book of Dolores, a series of self-portraits in photography and drawings with accompanying text, William T. Vollmann pictures himself as a cross-dresser. He uses various techniques that emphasize the pictorial approach of photography, to create an uncanny icon of femininity. As an attempt to reach the other side, not just of gender, but of life, his negative prints in particular seem to reveal a ghostly presence. In TheBook of Dolores, una serie di autoritratti fotografici e disegnati e accompagnati da un testo scritto, William T. Vollmann si ritrae come un travestito. Utilizza diverse tecniche che enfatizzano l’approccio pittorialista alla fotografia per creare un’icona perturbante della femminilità. Tentativi di raggiungere l’altro lato, non solo del genere, ma anche della vita, i suoi negativi, in particolare, sembrano rivelare una presenza spettrale.
description: ENTHYMEMA, No 23 (2019)
Inflaton Decay through Supergravity Effects
Creators: name: Endo, Motoi
name: Kawasaki, Masahiro
name: Takahashi, Fuminobu
name: Yanagida, T. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We point out that supergravity effects enable the inflaton to decay into all matter fields, including the visible and the supersymmetry breaking sectors, once the inflaton acquires a non-vanishing vacuum expectation value. The new decay processes have great impacts on cosmology; the reheating temperature is bounded below; the gravitinos are produced by the inflaton decay in a broad class of the dynamical supersymmetry breaking models. We derive the bounds on the inflaton mass and the vacuum expectation value, which severely constrain high-scale inflations such as the hybrid and chaotic inflation models.
description: 18 pages, 4 figures. v2: a version published in PLB
Universal Scaling Behavior of Clustering Coefficient Induced by Deactivation Mechanism
Creators: name: Tian, Liang
name: Zhu, Chen-Ping
name: Shi, Da-Ning
name: Gu, Zhi-Ming
name: Zhou, Tao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a model of network growth that generalizes the deactivation model previously suggested for complex networks. Several topological features of this generalized model, such as the degree distribution and clustering coefficient, have been investigated analytically and by simulations. A scaling behavior of clustering coefficient $C \sim 1/M$ is theoretically obtained, where $M$ refers to the number of active nodes in the network. We discuss the relationship between the recently observed numerical behavior of clustering coefficient in the coauthor and paper citation networks and our theoretical result. It shows that both of them are induced by deactivation mechanism. By introducing a perturbation, the generated network undergoes a transition from large- to small-world, meanwhile the scaling behavior of $C$ is conserved. It indicates that $C \sim 1/M$ is a universal scaling behavior induced by deactivation mechanism.
description: 8 pages, 9 figures. To be published in Physical Review E
Efficient Error Prediction for Differentially Private Algorithms
Creators: name: Nelson, Boel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Differential privacy is a strong mathematical notion of privacy. Still, a prominent challenge when using differential privacy in real data collection is understanding and counteracting the accuracy loss that differential privacy imposes. As such, the accuracy/privacy trade-off of differential privacy needs to be balanced on a case-by-case basis. Applications in the literature tend to focus solely on analytical accuracy bounds, not include data in error prediction, or use arbitrary settings to measure error empirically. To fill the gap in the literature, we propose a novel application of factor experiments to create data aware error predictions. Basically, factor experiments provide a systematic approach to conducting empirical experiments. To demonstrate our methodology in action, we conduct a case study where error is dependent on arbitrarily complex tree structures. We first construct a tool to simulate poll data. Next, we use our simulated data to construct a least squares model to predict error. Last, we show how to validate the model. Consequently, our contribution is a method for constructing error prediction models that are data aware.
description: ARES version
Μεταβλητότητα, εξυγίανση, αποκατάσταση τοπίου. Το Παλίμψηστο του ορεινού όγκου Ωραιοκάστρου
Creators: name: Μπακογιώργου, Μερόπη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μεταβλητότητα, εξυγίανση, αποκατάσταση τοπίου
Ορεινός όγκος Ωραιοκάστρου
Παλίμψηστο
Landscape variability
remediation, restoration
Mountainous region of Oreokastro
Palimpsest

description: Στην παρούσα μεταπτυχιακή διπλωματική εργασία επιχειρείται η περιγραφή και η ανάλυση του φυσικού τοπίου της ορεινής περιοχής του δήμου Ωραιοκάστρου Θεσσαλονίκης. Το τοπίο αυτό εξελίχθηκε με την πάροδο των ετών, μετά από ανθρωπογενείς παρεμβάσεις, όπως κατασκευή πολεμικών εγκαταστάσεων κατά τη διάρκεια του Α΄ Παγκοσμίου Πολέμου, εξόρυξη φυσικών πόρων από λατομεία, δημιουργία χυτά ή μετά από φυσικές διαταραχές όπως αύξηση πληθυσμών ξυλοφάγων εντόμων ή πυρκαγιές. Αναλύονται οι έννοιες του τοπίου, τα προβλήματα που δημιουργούνται σε αυτό, καθώς και η ανάγκη και οι αρχές προστασίας του. Τα προβλήματα που αφορούν το περιβάλλον χρήζουν άμεσης αντιμετώπισης με επεμβάσεις αποκατάστασης και αναβάθμισης του φυσικού τοπίου στο πλαίσιο της αειφορίας. Η περιοχή του ορεινού όγκου Ωραιοκάστρου, του όρους ‘Σιβρί’, αποτελεί την περιοχή μελέτης. Στην περιοχή αυτή γίνεται η έρευνα για τον εντοπισμό των παραπάνω θεμάτων. Αναλύονται οι περιβαλλοντικές επιπτώσεις στο δασικό κυρίως τοπίο, από τις δραστηριότητες των λατομείων, καθώς και επιπτώσεις στο τοπίο μετά από πυρκαγιά ή εμφάνιση φυσικών εχθρών. Γίνεται αξιολόγηση της υφιστάμενης κατάστασης στην περιοχή μελέτης και προτείνονται μέτρα για την αποκατάσταση και αναβάθμιση του ορεινού τοπίου
description: This dissertation thesis attempts the description and analysis of the natural landscape of the mountainous region of Oreokastro of Thessaloniki. This landscape has evolved, over the years, after human intervention, such as construction of war facilities during the First World War, extraction of natural resources in quarries, or natural disturbances, such as an increase of the population of woodcut insects or forest fires. It analyzes, the landscape meanings, with its problems and the need and principles for its protection. These problems require immediate treatment with rehabilitation, restoration and upgrading the natural landscape in the context of sustainable development. The mountainous region of Oreokastro, with the name ‘Sivri’, constitutes the research area. In this area research is carried out to identify the above issues. The environmental impacts on the landscape of the quarrying, forest fires, population increase of harmful insects are analyzed. The current situation in the study area is being evaluated and measures are being proposed in order to restore and upgrade the mountainous landscape
A critical incidents study : the process of differentiation within the family of procreation
Creators: name: Dionne, Robert F.
Publisher: name: University of British Columbia
Year: 2008

description: The purpose of this study was to investigate what facilitates and hinders the process of differentiation of parents within their family of procreation. Participants of this study were involved in a parenting workshop which was based upon Bowen's Family System Theory and his concept of differentiation. Using a critical incidents approach, participants completed daily logs of their experiences from which a category system detailing the process of differentiation was created. The category system suggests both the criteria for facilitating successful differentiation and the opposing criteria for hindering successful differentiation. A review of the literature revealed that no prior research of this nature has been conducted. As well, the literature also revealed that very little use has been made of Family System's Theory in terms of parenting programs. The dearth of literature suggests that more research is required in applying Family System’s Theory to programmatic attempts at helping families adjust over their developmental lifespan. The research suggested that criteria for successfully facilitating the process towards greater differentiation involved behaviours indicating: Being Responsible, Acceptance of Difference, Control of Anxiety, Awareness of Triangles, Awareness of Self, and Fostering Connection.
clesperanto: Open-source, GPU-accelerated image processing across programming languages and software ecosystems
Creators: name: Haase, Robert
Publisher: name: F1000 Research Limited
Year: 2022

description: The optimised computing power of graphics processing units (GPUs) is changing the way we do image analysis in the life sciences. Not just new deep learning approaches but also GPU-accelerated classical image processing techniques are becoming available to end-users with minimal coding skills. This ongoing revolution is an opportunity to synchronise image processing operations and workflows as many of them have to be rewritten for new GPU-based computing architectures. The clesperanto project is paving the path for image-analysts working with Fiji, Icy, ImageJ, Matlab, napari, Jython, Python and others to use the same language for formulating their scientific image analysis workflows in a cross-platform fashion and thus, connects the communities of multiple software ecosystems.
Strong Monogamy of Bipartite and Genuine Multipartite Entanglement: The Gaussian Case
Creators: name: Adesso, Gerardo
name: Illuminati, Fabrizio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We demonstrate the existence of general constraints on distributed quantum correlations, which impose a trade-off on bipartite and multipartite entanglement at once. For all N-mode Gaussian states under permutation invariance, we establish exactly a monogamy inequality, stronger than the traditional one, that by recursion defines a proper measure of genuine N-partite entanglement. Strong monogamy holds as well for subsystems of arbitrary size, and the emerging multipartite entanglement measure is found to be scale invariant. We unveil its operational connection with the optimal fidelity of continuous variable teleportation networks.
description: 4 pages, 2 figures. Final version, published in PRL
LAXPC instrument onboard AstroSat: Five exciting years of new scientific results specially on X-ray Binaries
Creators: name: Yadav, J. S.
name: Agrawal, P. C.
name: Misra, Ranjeev
name: Roy, Jayashree
name: Pahari, Mayukh
name: Manchanda, R. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: With its large effective area at hard X-rays, high time resolution and having co-aligned other instruments, AstroSat/LAXPC was designed to usher in a new era in rapid variability studies and wide spectral band measurements of the X-ray binaries. Over the last five years, the instrument has successfully achieved to a significant extent these Science goals. In the coming years, it is poised to make more important discoveries. This paper highlights the primary achievements of AstroSat/LAXPC in unraveling the behavior of black hole and neutron star systems and discusses the exciting possibility of the instrument's contribution to future science.
description: 18 pages, 12 figures, 1 table, Accepted for publication in The Journal of Astrophysics and Astronomy
Transcription of the first Pear Film narration
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-140309-10: Transcription of the real-time narration of the Pear Film (file VP-240208-03), from the start of the file up to 2:00.
Μελέτη δομικών και μαγνητικών ιδιοτήτων ενώσεων σπάνιων γαιών με τη μέθοδο DFT
Creators: name: Λάμπρου, Λαμπρινή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: υπολογιστικές μέθοδοι
μέθοδος συναρτησιοειδούς πυκνότητας
μαγνήτες σπάνιων γαιών
DFT
VASP
rare earth magnets

description: Στην παρούσα εργασία μελετώνται οι δομικές και οι μαγνητικές ιδιότητες των ενώσεων MmxSm1-xCo5 για x=0, x=0.1, x=0.5 και x=1, με τη μέθοδο DFT. Η εργασία χωρίζεται σε δύο μέρη. Στο πρώτο μέρος, που αποτελεί τη θεωρητική εισαγωγή της παρούσας εργασίας, παρουσιάζονται οι τέσσερις εμπορικές κατηγορίες μόνιμων μαγνητών και γίνεται μια σύντομη αναφορά στις βασικές μαγνητικές τους ιδιότητες. Στη συνέχεια, παρουσιάζονται οι κυριότεροι μαγνήτες σπάνιων γαιών και η αναγκαιότητα εύρεσης νέων μαγνητών με λιγότερο ακριβές σπάνιες γαίες. Στην τελευταία παράγραφο αυτού του μέρους, περιγράφονται οι βασικές αρχές της μεθόδου DFT, η οποία αποτελεί το υπολογιστικό εργαλείο με το οποίο πραγματοποιήθηκε η παρούσα μελέτη. Στο δεύτερο μέρος, παρουσιάζεται η εφαρμογή των προαναφερθέντων στην υπολογιστική ανάλυση που πραγματοποιήθηκε για τη μελέτη της αντικατάστασης του Sm από το υλικό Mm, ένα κράμα σπάνιων γαιών χαμηλού κόστους στην ένωση SmCo5, καθιερωμένη σε εφαρμογές μόνιμων μαγνητών υψηλής απόδοσης. Αναλύονται λεπτομερώς οι υπολογιστικές παράμετροι και η κατασκευή των ατομιστικών μοντέλων που χρησιμοποιήθηκαν. Τα αποτελέσματα αυτής της εργασίας αποσκοπούν στο να δώσουν σημαντικές πληροφορίες σχετικά με τη δυνατότητα κατασκευής καινοτόμων μόνιμων μαγνητών από φθηνότερα και εμπορικώς προσβάσιμα υλικά
description: In this project we will study the structural and magnetic properties of the compounds MmxSm1-xCo5 for x=0, x=0.1, x=0.5 and x=1, with the DFT method. The project is divided into two parts. In the first part, that contains the theoretical introduction of this project, the four most commercial categories of permanent magnets are presented, as well as a brief report to their basic magnetic properties. Next, the major rare earth magnets are presented, as well as the necessity of finding new magnets with less expensive rare earths. In the last paragraph of this part, we are describing the basic principles of the DFT method which constitutes the computing tool the current study was held with. In the second part, we are presenting the implementation of the above in the computing analysis that was held for the study of the of replacement of Sm with the Mm material, an alloy of inexpensive rare earths in the SmCo5 compound, which is implemented on permanent, high efficiency magnet applications. We will thoroughly examine the computing parameters and the construction of the atomistic models that were used. The results of this project aim to give important information regarding the capability of constructing new, permanent magnets from less expensive and commercially accessible materials
description: Σε συνεργασία με το Ινστιτούτο Τεχνολογίας Γκρενόμπλ (Γαλλία), το ΕΚΕΦΕ Δημόκριτος, και το CNRS (Centre National de la Researche Scientifique, Γαλλία)
Zero-temperature generalized phase diagram of the 4d transition metals under pressure
Creators: name: Cazorla, C.
name: Alf`e, D.
name: Gillan, M. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use an accurate implementation of density functional theory (DFT) to calculate the zero-temperature generalized phase diagram of the 4$d$ series of transition metals from Y to Pd as a function of pressure $P$ and atomic number $Z$. The implementation used is full-potential linearized augmented plane waves (FP-LAPW), and we employ the exchange-correlation functional recently developed by Wu and Cohen. For each element, we obtain the ground-state energy for several crystal structures over a range of volumes, the energy being converged with respect to all technical parameters to within $\sim 1$ meV/atom. The calculated transition pressures for all the elements and all transitions we have found are compared with experiment wherever possible, and we discuss the origin of the significant discrepancies. Agreement with experiment for the zero-temperature equation of state is generally excellent. The generalized phase diagram of the 4$d$ series shows that the major boundaries slope towards lower $Z$ with increasing $P$ for the early elements, as expected from the pressure induced transfer of electrons from $sp$ states to $d$ states, but are almost independent of $P$ for the later elements. Our results for Mo indicate a transition from bcc to fcc, rather than the bcc-hcp transition expected from $sp$-$d$ transfer.
description: 28 pages and 10 figures. Submitted to Phys. Rev. B
EDEN-RICAPPS STUDY: MODELS TO PREDICT POOR OUTCOMES IN EMERGENCY DEPARTMENT  IN PATIENTS OVER 65 YEARS
Creators: name: García-Gutierrez, Susana
Publisher: name: Zenodo
Year: 2024
Subjects: emergency medicine
triage systems
elderly
predictive models

description: This is the protocol of the EDEN-RICAPPS study, a collaborative project between SEMES (Spanish Society of Emergency Medicine) and RICAPPS (Research Network on Chronicity, Primary Care and Health Promotion). Its main objectives are to create models of poor outcome for people over 65 years of age attending emergency departments.
Fluctuation theorems for harmonic oscillators
Creators: name: Joubaud, Sylvain
name: Garnier, Nicolas
name: Ciliberto, Sergio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study experimentally the thermal fluctuations of energy input and dissipation in a harmonic oscillator driven out of equilibrium, and search for Fluctuation Relations. We study transient evolution from the equilibrium state, together with non equilibrium steady states. Fluctuations Relations are obtained experimentally for both the work and the heat, for the stationary and transient evolutions. A Stationary State Fluctuation Theorem is verified for the two time prescriptions of the torque. But a Transient Fluctuation Theorem is satisfied for the work given to the system but not for the heat dissipated by the system in the case of linear forcing. Experimental observations on the statistical and dynamical properties of the fluctuation of the angle, we derive analytical expressions for the probability density function of the work and the heat. We obtain for the first time an analytic expression of the probability density function of the heat. Agreement between experiments and our modeling is excellent.
Strong-field triple ionization of atoms with $p^3$ valence shell
Creators: name: Prauzner-Bechcicki, Jakub S.
name: Efimov, Dmitry K.
name: Mandrysz, Michał
name: Zakrzewski, Jakub
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interaction of strong pulsed femtosecond laser field with atoms having three equivalent electrons in the outer shell ($p^3$ configuration, e.g. nitrogen) is studied via numerical integration of a time-dependent Schrödinger equation on a grid approach. Single, double and triple ionization yields originating from a completely antisymmetric wave function are calculated and extracted using a restricted-geometry model with the soft-core potential and three active electrons. The direct triple ionization channel is found to produce a larger yield than the channel connected with single and then direct double ionization. Compared against earlier results investigating the $n s^ 2 n p^1$ configuration, we propose that the differences found here might in fact be accessible through electron's momentum distribution.
description: 5 pages, 3 figures
Legendre transformation and information geometry for the maximum entropy theory of ecology
Creators: name: Pessoa, Pedro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Here I investigate some mathematical aspects of the maximum entropy theory of ecology (METE). In particular I address the geometrical structure of METE endowed by information geometry. As novel results, the macrostate entropy is calculated analytically by the Legendre transformation of the log-normalizer in METE. This result allows for the calculation of the metric terms in the information geometry arising from METE and, by consequence, the covariance matrix between METE variables.
description: Typos fixed
Volume of the quantum mechanical state space
Creators: name: Andai, Attila
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53C20; 81Q99

description: The volume of the quantum mechanical state space over $n$-dimensional real, complex and quaternionic Hilbert-spaces with respect to the canonical Euclidean measure is computed, and explicit formulas are presented for the expected value of the determinant in the general setting too. The case when the state space is endowed with a monotone metric or a pull-back metric is considered too, we give formulas to compute the volume of the state space with respect to the given Riemannian metric. We present the volume of the space of qubits with respect to various monotone metrics. It turns out that the volume of the space of qubits can be infinite too. We characterize those monotone metrics which generates infinite volume.
description: 17 pages
Mott transition and dimerization in the one-dimensional SU$(n)$ Hubbard model
Creators: name: Buchta, K.
name: Legeza, Ö.
name: Szirmai, E.
name: Sólyom, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The one-dimensional SU$(n)$ Hubbard model is investigated numerically for $n=2,3,4$, and 5 at half filling and $1/n$ filling using the density-matrix renormalization-group (DMRG) method. The energy gaps and various quantum information entropies are calculated. In the half-filled case, finite spin and charge gaps are found for arbitrary positive $U$ if $n > 2$. Furthermore, it is shown that the transition to the gapped phase at $U_{\rm c}=0$ is of Kosterlitz-Thouless type and is accompanied by a bond dimerization both for even and odd $n$. In the $1/n$-filled case, the transition has similar features as the metal-insulator transition in the half-filled SU(2) Hubbard model. The charge gap opens exponentially slowly for $U>U_{\rm c}=0$, the spin sector remains gapless, and the ground state is non-dimerized.
description: 9 pages, 12 figures
An Important Properties of Entanglement: Pairwise Entanglement can Only be Transferred by Entangled Pair
Creators: name: Xi, Xiao-Qiang
name: Liu, W. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Basing on the calculation of all the pairwise entanglement in the $n$ ($n \leq 6$)-qubit Heisenberg XX open chain with system impurity, we find an important result: pairwise entanglement can only be transferred through entangled pair. The non-nearest pairwise entanglement will has the possibility to exist as long as there has even number qubit in their middle. This point means that we can get longer distance entanglement in solid system.
description: 4 pages, 5 figures
The experience of stress in high school teachers: appraisals of threat
Creators: name: McGillivray, Laurie M.
Publisher: name: University of British Columbia
Year: 2008

description: The purpose of this study was to expand our understanding of the meaning of work-related stress, from the perspective of high school teachers, with a focus on threat appraisals. Data were collected through in-depth interviews with a volunteer sample of 8 high school teachers (5 men and 3 women). Background information was also recorded based on previous research and theories of teacher stress. The initial interview focused on a school-related situation that the teacher considered to be stressful, and which had occurred in the previous 2 weeks. In the second interview the teacher was asked to confirm or disconfirm the researcher's basic understanding of the story's themes and to clarify and expand on specific statements. I analysed transcripts verbatim in order to allow the meaning units to emerge from the data. Data analysis followed Giorgi's (1975) steps for qualitative analysis. The eight themes that emerged were: (a) the experience of conflict, with a subtheme of inner conflict; (b) the experience of power, with the subtheme of control; (c) the experience of anger and frustration; (d) the experience of autonomy; (e) the experience of role conflict; (f) the experience of support; (g) the experience of efficacy, and (h) the experience of workload pressure. The second part of the analysis involved asking the data a question (Alexander, 1988). The focus was on finding threat appraisals and determining what was at stake for the teacher (Lazarus & Folkman, 1984). All participants showed evidence of threat (and loss) appraisals related to the common themes. There were individual differences in terms of what was at stake and in terms of the dominance of particular common themes. However, the dominant appraisals for individuals did relate to the common themes. The results of this study indicate that teachers experience similar stressors but that what is appraised as threatening for individuals differs in three ways:(a) different themes are dominant for individuals, (b)appraisals of threat (and loss) weave throughout common themes in unique individual patterns, and (c) for a particular theme, what is at stake is unique to the individual. The implications of this research are that teaching and stress must be understood at an individual and a systemic level in order for effective coping strategies to be found. In addition to the common stressors within the profession, there is an appraisal process that involves personal meanings interacting with that environment. It is incumbant upon the teaching and counselling professions to assist teachers in raising awareness of the existence and interactive nature of these components, in order for personal resources to be more adequately accessed and appropriate coping strategies found.
Electric-field-induced spin spiral state in bilayer zigzag graphene nanoribbons
Creators: name: Prayitno, Teguh Budi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigated the emergence of spin spiral ground state induced by the electric field in the bilayer zigzag graphene nanoribbons for the ferromagnetic edge states. To do that, we employed the generalized Bloch theorem to create flat spiral alignments for all the magnetic moments of carbon atoms at the edges within a constraint scheme approach. While the small ribbon width can preserve the ferromagnetic ground state, the large one shows the spiral ground state starting from a certain value of the electric field. We also pointed out that the spiral ground state is caused by the reduction of spin stiffness. In this case, the energy scale exhibits a subtle nature that can only be considered at the low temperature. For the last discussion, we also revealed that the spin spiral ground state appears more rapidly when the thickness increases. Therefore, we justify that the large ribbon width and large thickness can generate many spiral states induced by the electric field.
HUDF 1619 - a candidate polar-ring galaxy in the Hubble Ultra Deep Field
Creators: name: Reshetnikov, V. P.
name: Dettmar, R. -J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A good candidate for a polar-ring galaxy has been detected in the Hubble Ultra Deep Field (HUDF). The galaxy HUDF 1619 (V~25 mag, z~1) is the most distant object of this type known to date. A large-scale structure crosses the highly warped disk of the main galaxy seen almost edge-on at an angle of about 70 grad. The luminosity of this structure (the possible polar ring) reaches \~1/3 of the luminosity of the central galaxy. A strong absorption lane is seen in the region where this structure is projected onto the disk of the central object. There are two galaxies of comparable luminosity adjacent to HUDF 1619 (in projection). One of them may be the donor galaxy in the interaction which gave rise to the ring structure.
description: 5 pages, 4 figures
Transcription of "Pingu in the Ice Cave"
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-140309-08: Transcription of the narration of "Pingu in the Ice Cave" (file VP-181008-04), from 3:17 to 4:27.
Dyadic coping, daily marital tension, and overall marital adjustment in stepfamily couples
Creators: name: Maris, Catherine L.
Publisher: name: University of British Columbia
Year: 2008

description: This investigation explored the relation between marital outcomes and daily coping in stepfamily couples. Two types of marital outcomes were examined: overall marital adjustment and daily marital tension. Specifically, it was hypothesized that respondent and spouse coping would each explain unique variance in marital adjustment and in daily marital tension levels. In addition, the association between marital outcomes and specific interactions of respondent and spouse coping strategies was examined. Seventy-eight couples participated in all phases of the study, which included a 45-minute structured telephone interview and a structured one-week diary. Marital adjustment was assessed by means of the Dyadic Adjustment Scale (Spanier, 1976). Daily coping was measured using the Revised Ways of Coping Scale (Folkman, Lazarus, Dunkel-Schetter, DeLongis, & Gruen, 1986). Marital tension was also assessed on a daily basis. Analyses revealed no significant associations between marital adjustment and respondent or spouse coping. Respondent marital tension was found to explain a significant amount of the variation in day-to-day marital tension. However, no significant independent effects of either spouse coping or respondent and spouse coping interactions were found.
A superburst candidate in EXO 1745-248 as a challenge to thermonuclear ignition models
Creators: name: Altamirano, Diego; Keek, L.; Cumming, A.; Sivakoff, Gregory Robert; Heinke, Craig O.; Wijnands, Rudy; Degenaar, Nathalie; Homan, Jeroen; Pooley, David
Publisher: name: University of Alberta Libraries
Year: 2012

Abstract
Το πένθος. Ποιμαντική και Ψυχολογική προσέγγιση.
Creators: name: Ζερβός, Στυλιανός Σεβαστιανός Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Θάνατος
Μορφές πένθους
Ποιμαντική και ψυχολογική προσέγγιση
Death
Kinds of mourning
Pastoral and psychological approach

description: Σκοπός της παρούσης διπλωματικής ήταν η σύνταξη ενός διεπιστημονικού εγχειριδίου για το πένθος, το οποίο θα μπορούσε να λειτουργήσει ως βοήθημα για τον ποιμένα, αλλά και για οποιονδήποτε άλλον θα ήθελε να λάβει ή να παράσχει βοήθεια. Για την επίτευξη αυτού του στόχου, επιχειρήθηκε ένας συγκερασμός της βιοψυχολογικής γνώσης, με την Πατερική διδασκαλία και εμπειρία, ο οποίος βασίστηκε κυρίως σε βιβλιογραφική έρευνα, αλλά και σε άντληση σχετικών στοιχείων από συνεδρίες με πενθούντες. Παρουσιάστηκαν τα είδη και τα αίτια του θανάτου, μέσα από το πρίσμα, αφενός της θεολογίας και αφετέρου της ιατρικής επιστήμης. Αναλύθηκε η φιλοσοφία ζωής και η συνεπαγόμενη στάση έναντι του θανάτου. Δόθηκε ο ορισμός του πένθους και αναπτύχθηκαν οι ποικίλες μορφές του. Έγινε, επίσης, πραγμάτευση των μορφών και των εκφράσεων θρήνου, στην Αγ. Γραφή, αλλά και των αντίστοιχων στα διάφορα πεδία της σύγχρονης καθημερινότητας. Αναπτύχθηκε η συμβολή της Χριστιανικής μνήμης θανάτου, στη διαμόρφωση στάσης έναντι της επίγειας και της μεταθανάτιας ζωής. Ιδιαίτερη, δε, βαρύτητα, δόθηκε στην βιολογική παράμετρο του πένθους, ενώ η όλη ανάλυση έκλεισε, με την προβολή της σημασίας των ομάδων αυτοβοήθειας και της μελέτης της ιστορίας του Ιώβ
description: The purpose of the present dissertation was the drawing up of an interdisciplinary manual on how to deal with mourning, which might assist not only a preacher in his work, but also anyone who should feel the need to receive or to offer help. In order to reach this goal, a conflation of bio-psychological insight and understanding along with the Patristic teachings and experience has been attempted, primarily based on bibliographical research, but also on relevant data originating in sessions with bereaved people. The kinds and causes of death - viewed through the perspectives of theology, on the one hand, and medicine, on the other - along with an analysis of the philosophy of life and the concomitant stance on death are presented. The definition of mourning is given, while its manifold kinds are expounded on. Herewith, various kinds and expressions of mourning and lamentation, as they appear in the Bible, as well as in various fields of modern everyday life, are treated. The contribution of the Christian concept of “memento mori” in the mundane and posthumous life has also been developed, in aid of a better and more comprehensive understanding of ‘mourning’. Special attention has been drawn to the biological parameter of mourning, while the discussions, at the end, are wrapped up by projecting the significance of self-help groups and the study of the story of Job
William T. Vollmann letto dall’Italia
Creators: name: Bocchiola, Massimo
name: Briasco, Luca
name: Durastanti, Claudia
name: Santoni, Vanni
Publisher: name: ENTHYMEMA
Year: 2019
Subjects: Massimo Bocchiola; Luca Briasco; Claudia Durastanti; Vanni Santoni; William T. Vollmann

description: Per testimoniare la diffusione e la fortuna di Vollmann in Italia, Massimo Bocchiola, traduttore di Fathers and Crows(1992; Venga il tuo regno, 2011), Luca Briasco, editor di Minimum Fax, Claudia Durastanti, scrittrice, e Vanni Santoni, scrittore ed editor, intervengono con un loro personale contributo da lettori di Vollmann. In order to discuss Vollmann’s reception in Italy, Massimo Bocchiola, translator of Fathers and Crows (1992; Venga il tuo regno, 2011), Luca Briasco, editor at Minimum Fax, Claudia Durastanti, writer, and Vanni Santoni, writer and editor, participate with their personal point of view as Vollmann’s readers.
description: ENTHYMEMA, No 23 (2019)
Danger Theory: The Link between AIS and IDS?
Creators: name: Aickelin, Uwe
name: Bentley, Peter
name: Cayzer, Steve
name: Jungwon, Kim
name: McLeod, Julie
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We present ideas about creating a next generation Intrusion Detection System based on the latest immunological theories. The central challenge with computer security is determining the difference between normal and potentially harmful activity. For half a century, developers have protected their systems by coding rules that identify and block specific events. However, the nature of current and future threats in conjunction with ever larger IT systems urgently requires the development of automated and adaptive defensive tools. A promising solution is emerging in the form of Artificial Immune Systems. The Human Immune System can detect and defend against harmful and previously unseen invaders, so can we not build a similar Intrusion Detection System for our computers.
Scrupulously Avoid the Desire for Results. Interview with William T. Vollmann
Creators: name: McClure, Max
Publisher: name: ENTHYMEMA
Year: 2019
Subjects: William T. Vollmann; Interview

description: A shorter version of this interview was published in The Claw, Fall 2009, Vol 2, No 1. © by Max McClure. Reprinted by permission.
description: ENTHYMEMA, No 23 (2019)
Local field effects in ultrafast light-matter interaction measured by pump-probe spectroscopy of monolayer MoSe$_{\boldsymbol 2}$
Creators: name: Rodek, Aleksander
name: Hahn, Thilo
name: Kasprzak, Jacek
name: Kazimierczuk, Tomasz
name: Nogajewski, Karol
name: Połczyńska, Karolina
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Kuhn, Tilmann
name: Machnikowski, Paweł
name: Potemski, Marek
name: Wigger, Daniel
name: Kossacki, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a novel approach to ultrafast resonant pump-probe spectroscopy we investigate the spectral shape and dynamics of absorption features related to the A exciton in an hBN/MoSe$_2$/hBN van der Waals heterostructure. While in a pure two-level system a pump-probe experiment measures the occupation or the polarization dynamics, depending on the time ordering of the pulse pair, in the transition metal dichalcogenide (TMD) system both quantities get thoroughly mixed by strong exciton-exciton interaction. We find that for short positive delays the spectral lines experience pronounced changes in their shape and energy and they relax to the original situation on a picosecond time scale. For negative delays distinctive spectral oscillations appear indicating the first-time observation of perturbed free induction decay for a TMD system. The comparison between co-circular and cross-circular excitation schemes further allows us to investigate the rapid inter-valley scattering. By considering a three-level system as a minimal model including the local field effect, excitation induced dephasing and scattering between the excited states we explain all phenomena observed in the experiment with excellent consistency. Our handy model can be even further reduced to two levels in the case of a co-circular excitation, for which we derive analytic expressions to describe the detected signals. This allows us to trace back the spectral shapes and shifts to the impact of local field effect and excitation induced dephasing thus fully reproducing the complex behavior of the observed effects.
Dynamical vs. Auxiliary Fields in Gravitational Waves around a Black Hole
Creators: name: Asnin, Vadim
name: Kol, Barak
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The auxiliary/dynamic decoupling method of hep-th/0609001 applies to perturbations of any co-homogeneity 1 background (such as a spherically symmetric space-time or a homogeneous cosmology). Here it is applied to compute the perturbations around a Schwarzschild black hole in an arbitrary dimension. The method provides a clear insight for the existence of master equations. The computation is straightforward, coincides with previous results of Regge-Wheeler, Zerilli and Kodama-Ishibashi but does not require any ingenuity in either the definition of variables or in fixing the gauge. We note that the method's emergent master fields are canonically conjugate to the standard ones. In addition, our action approach yields the auxiliary sectors.
description: 26 pages