cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sul Baudelaire di Walter Benjamin Dalla teoria della traduzione alla sociologia della letteratura
Creators: name: D'Urso, Andrea
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Baudelaire; Benjamin; sociologia della letteratura; materialismo dialettico; poesia

description: I vivaci studi italiani degli scritti di Benjamin sulla poesia di Baudelaire (editi da Solmi nel 1962) hanno spesso trascurato l’importanza di allargare la propria prospettiva all’edizione francese del 1974 (Payot), contenente tre importanti saggi noti in Germania dalla fine degli anni ’60. Poiché tali testi sono stati finalmente tradotti in italiano solo nel 2006 (Einaudi) e ripubblicati nel 2012 in un’edizione più articolata (Neri Pozza), ci proponiamo di rilanciare un nostro studio a partire dalla versione italiana, per mostrare come essi gettino le basi della sociologia materialista della letteratura di Benjamin, ancora insufficientemente esplorata. Formatasi proprio muovendo dalla pratica traduttiva dei Quadri parigini, essa ha analizzato il ruolo della bohème, del flâneur e della modernità nell’eroismo lirico di Baudelaire all’apogeo del capitalismo.
description: ENTHYMEMA, No 13 (2015)
Persistence of hydrodynamic envelope solitons: detection and rogue wave occurrence
Creators: name: Slunyaev, Alexey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The observation of a wave group persisting for more than 200 periods in the direct numerical simulation of nonlinear unidirectional irregular water waves in deep water is discussed. The simulation conditions are characterized by parameters realistic for broad-banded waves in the sea. The group is identified by the solution of the associated scattering problem for the nonlinear Schrödinger equation as the intense envelope soliton with remarkably stable parameters. Most of extreme waves occur on top of this group, resulting in higher and longer rogue wave events.
title: Polymeric Peptide Mimics for Protein Delivery
Creators: name: Backlund, Coralie
Publisher: name: University of Massachusetts Amherst
Year: 2018
Subjects: subject: biological engineering
subject: biomaterials
subject: immunoprophylaxis and therapy
subject: polymer chemistry

description: The plasma membrane is a major obstacle in the development and use of biomacromolecules for intracellular applications. Consequently, proteins with intracellular targets represent an enormous, yet under studied avenue for therapeutics. Extended research has aimed at facilitating intracellular delivery of exogenous proteins using protein transduction domains (PTDs), which allow transport of bioactive molecules into cells. Synthetic polymers, inspired by PTDs, provide a well-controlled platform to vary molecular architecture for structure activity relationship studies. Specifically, this thesis focuses on the use of ring-opening metathesis, a facile and efficient polymerization technique, through which we can vary structural parameters to optimize delivery of non-covalently encapsulated proteins. The aim was to characterize, optimize, and utilize PTD mimics (PTDMs) for functional protein delivery. Fluorescently labeled cargo were used to elucidate the predominant cellular entry mechanism for the PTDMs and were compared to their ability to deliver protein into cells. A series of polymers was designed around the most membrane active polymers to explore the incorporation of guanidine and hydrophobic moieties, yielding a PTDM capable of high protein delivery into a variety of cell types. The PTDM was then explored for use as a vaccine delivery reagent into immune cells. The ability to have a specific response with the cargo of interest verifies cytosolic delivery using the PTDMs and provides valuable insight into their use to affect intracellular pathways.
Fragmentation cross sections of Fe^{26+}, Si^{14+} and C^{6+} ions of 0.3-10 A GeV on polyethylene, CR39 and aluminum targets
Creators: name: Cecchini, S.
name: Chiarusi, T.
name: Giacomelli, G.
name: Giorgini, M.
name: Kumar, A.
name: Mandrioli, G.
name: Manzoor, S.
name: Margiotta, A. R.
name: Medinaceli, E.
name: Patrizii, L.
name: Popa, V.
name: Qureshi, I. E.
name: Sirri, G.
name: Spurio, M.
name: Togo, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present new measurements of the total and partial fragmentation cross sections in the energy range 0.3-10 A GeV of 56Fe, 28Si and 12C beams on polyethylene, CR39 and aluminum targets. The exposures were made at BNL, USA and HIMAC, Japan. The CR39 nuclear track detectors were used to identify the incident and survived beams and their fragments. The total fragmentation cross sections for all targets are almost energy independent while they depend on the target mass. The measured partial fragmentation cross sections are also discussed.
description: 8 pages, 6 EPS figures. Submitted to Nucl. Phys. A
Radial Gradients in Dust-to-Gas Ratio Lead to Preferred Region for Giant Planet Formation
Creators: name: Chachan, Yayaati
name: Lee, Eve J.
name: Knutson, Heather A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Rosseland mean opacity of dust in protoplanetary disks is often calculated assuming the interstellar medium (ISM) size distribution and a constant dust-to-gas ratio. However, the dust size distribution and the dust-to-gas ratio in protoplanetary disks are distinct from those of the ISM. Here, we use simple dust evolution models that incorporate grain growth and transport to calculate the time evolution of mean opacity of dust grains as a function of distance from the star. Dust dynamics and size distribution are sensitive to the assumed value of the turbulence strength $α_{\rm t}$ and the velocity at which grains fragment $v_{\rm frag}$. For moderate-to-low turbulence strengths of $α_{\rm t} \lesssim 10^{-3}$ and substantial differences in $v_{\rm frag}$ for icy and ice-free grains, we find a spatially non-uniform dust-to-gas ratio and grain size distribution that deviate significantly from the ISM values, in agreement with previous studies. The effect of a non-uniform dust-to-gas ratio on the Rosseland mean opacity dominates over that of the size distribution. This spatially varying -- that is non-monotonic -- dust-to-gas ratio creates a region in the protoplanetary disk that is optimal for producing hydrogen-rich planets, potentially explaining the apparent peak in gas giant planet occurrence rate at intermediate distances. The enhanced dust-to-gas ratio within the ice line also suppresses gas accretion rates onto sub-Neptune cores, thus stifling their tendency to undergo runaway gas accretion within disk lifetimes. Finally, our work corroborates the idea that low mass cores with large primordial gaseous envelopes (`super-puffs') originate beyond the ice line.
description: accepted to ApJ, 21 pages, 14 figures; added runaway gas accretion prescription and a discussion on accretion heating
Pietas, mitezza, felicità dello sguardo. Per un’etica debole della letteratura
Creators: name: Menzio, Pino
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Filosofia della letteratura; etica della letteratura; pensiero debole

description: Il pensiero debole si è caratterizzato sin dall’inizio per una marcata connotazione etica, che riguarda non solo le persone e l’ambiente, ma anche le cose. In termini più diretti (Vattimo, Rovatti) o in forma più mediata (Dal Lago) tale atteggiamento ha uno stretto rapporto con l’esperienza letteraria, che ne costituisce uno fra i principali punti di partenza. Ciò rende particolarmente agevole ri-applicare tali proposte etiche alla letteratura.
From the beginning, one of the most important features of Weak Thought is its pronounced ethical character, which concerns not only human beings and environment, but also things. In a direct way (Vattimo, Rovatti) or in a more mediate form (Dal Lago) this attitude has a close relationship with literary experience, which is one of its main starting points. It is thus very easy to re-apply these ethical propositions to literature.
description: ENTHYMEMA, No 13 (2015)
Autonomous Person-Specific Following Robot
Creators: name: Chan, Wesley P.
name: Radmard, Sina
name: Hew, Zhao Quan
name: Morris, Jon
name: Croft, Elizabeth
name: Van der Loos, H. F. Machiel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Following a specific user is a desired or even required capability for service robots in many human-robot collaborative applications. However, most existing person-following robots follow people without knowledge of who it is following. In this paper, we proposed an identity-specific person tracker, capable of tracking and identifying nearby people, to enable person-specific following. Our proposed method uses a Sequential Nearest Neighbour with Thresholding Selection algorithm we devised to fuse together an anonymous person tracker and a face recogniser. Experiment results comparing our proposed method with alternative approaches showed that our method achieves better performance in tracking and identifying people, as well as improved robot performance in following a target individual.
America's Forests: 1994 Health Update
Creators: name: Service, Forest
name: Service, Forest
Publisher: name: Unknown
Year: 1994
Subjects: Land Economics/Use
Research and Development/Tech Change/Emerging Technologies
Resource /Energy Economics and Policy

description: Excerpt from the report Introduction: About one-third of our Nation's land area is forested. These forests provide us with a wealth of economic, social, and environmental benefits. Healthy forests are forests capable of sustaining these benefits into the future. Yet, a healthy forest is not a static forest or one without dead and dying trees. Rather, forests are constantly changing as a result of natural forces, such as insects, disease, weather, fire, and human activities that affect them directly or indirectly. When these changes occur at a rate or in a direction that threaten the values we place on the forests, forest health concerns arise. This report highlights forest health concerns that the USDA Forest Service is closely watching at this time because of their current or potential ecological, economic, and social significance. In cooperation with State Foresters and others, the Forest Service is undertaking special management or research efforts to address many of these concerns.
Curvature invariants of static spherically symmetric geometries
Creators: name: Deser, S.
name: Ryzhov, A. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct all independent local scalar monomials in the Riemann tensor at arbitrary dimension, for the special regime of static, spherically symmetric geometries. Compared to general spaces, their number is significantly reduced: the extreme example is the collapse of all invariants ~ Weyl^k, to a single term at each k. The latter is equivalent to the Lovelock invariant L_k. Depopulation is less extreme for invariants involving rising numbers of Ricci tensors, and also depends on the dimension. The corresponding local gravitational actions and their solution spaces are discussed.
description: 14 pages
Magnetic reconnection between loops accelerated by a nearby filament eruption
Creators: name: Li, Leping
name: Peter, Hardi
name: Chitta, Lakshmi Pradeep
name: Song, Hongqiang
name: Ji, Kaifan
name: Xiang, Yongyuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic reconnection modulated by non-local disturbances in the solar atmosphere has been investigated theoretically, but rarely observed. In this study, employing Ha and extreme ultraviolet (EUV) images and line of sight magnetograms, we report acceleration of reconnection by adjacent filament eruption. In Ha images, four groups of chromospheric fibrils are observed to form a saddle-like structure. Among them, two groups of fibrils converge and reconnect. Two newly reconnected fibrils then form, and retract away from the reconnection region. In EUV images, similar structures and evolution of coronal loops are identified. Current sheet forms repeatedly at the interface of reconnecting loops, with width and length of 1-2 and 5.3-7.2 Mm, and reconnection rate of 0.18-0.3. It appears in the EUV low-temperature channels, with average differential emission measure (DEM) weighed temperature and EM of 2 MK and 2.5*10^27 cm-5. Plasmoids appear in the current sheet and propagate along it, and then further along the reconnection loops. The filament, located at the southeast of reconnection region, erupts, and pushes away the loops covering the reconnection region. Thereafter, the current sheet has width and length of 2 and 3.5 Mm, and reconnection rate of 0.57. It becomes much brighter, and appears in the EUV high-temperature channels, with average DEM-weighed temperature and EM of 5.5 MK and 1.7*10^28 cm-5. In the current sheet, more hotter plasmoids form. More thermal and kinetic energy is hence converted. These results suggest that the reconnection is significantly accelerated by the propagating disturbance caused by the nearby filament eruption.
description: 17 pages, 9 figures, accepted for publication in ApJ
Effiziente Simulation zwei- und dreidimensionaler Filmströmungen mit WaveMaker
Creators: name: Rietz, Manuel
name: Kneer, Reinhold
name: Scheid, Benoit
name: Rohlfs, Wilko
Publisher: name: RWTH Aachen University
Year: 2019

description: Jahrestreffen der ProcessNet-Fachgruppen Wärme- und Stoffübertragung, Trocknungstechnik und Mischvorgänge, Essen, Germany, 18 Mar 2019 - 20 Mar 2019; 1 Seite (2019).
Multiple relativistic outbursts of GRS 1915+105: radio emission and internal shocks
Creators: name: Miller-Jones, J. C. A.
name: McCormick, D. G.
name: Fender, R. P.
name: Spencer, R. E.
name: Muxlow, T. W. B.
name: Pooley, G. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 5-GHz MERLIN radio images of the microquasar GRS 1915+105 during two separate outbursts in 2001 March and 2001 July, following the evolution of the jet components as they move outwards from the core of the system. Proper motions constrain the intrinsic jet speed to be >0.57c, but the uncertainty in the source distance prevents an accurate determination of the jet speed. No deceleration is observed in the jet components out to an angular separation of about 300mas. Linear polarisation is observed in the approaching jet component, with a gradual rotation in position angle and a decreasing fractional polarisation with time. Our data lend support to the internal shock model whereby the jet velocity increases leading to internal shocks in the pre-existing outflow before the jet switches off. The compact nuclear jet is seen to re-establish itself within two days, and is visible as core emission at all epochs. The energetics of the source are calculated for the possible range of distances; a minimum power of 1-10 per cent of the Eddington luminosity is required to launch the jet.
description: 18 pages, 14 figures, accepted for publication in MNRAS. For higher-resolution versions of Figures 3, 5, and 12, see http://remote.science.uva.nl/~jmiller/grs1915/figures.html
Photon surfaces in less symmetric spacetimes
Creators: name: Koga, Yasutaka
name: Igata, Takahisa
name: Nakashi, Keisuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate photon surfaces and their stability in a less symmetric spacetime, a general static warped product with a warping function acting on a Riemannian submanifold of codimension two. We find a one-dimensional pseudopotential that gives photon surfaces as its extrema regardless of the spatial symmetry of the submanifold. The maxima and minima correspond to unstable and stable photon surfaces, respectively. It is analogous to the potential giving null circular orbits in a spherically symmetric spacetime. We also see that photon surfaces indeed exist for the spacetimes which are solutions to the Einstein equation. The parameter values for which the photon surfaces exist are specified. As we show finally, the pseudopotential arises due to the separability of the null geodesic equation, and the separability comes from the existence of a Killing tensor in the spacetime. The result leads to the conclusion that photon surfaces may exist even in a less symmetric spacetime if the spacetime admits a Killing tensor.
description: 21 pages, no figure
Cytoprotective effects of ginsenoside RD on apoptosis-associated cell death in the isolated human pancreatic islets
Creators: name: Kaviani, Maryam
name: Keshtkar, Somayeh
name: Azarpira, Negar
name: Hossein Aghdaei, Mahdokht
name: Geramizadeh, Bita
name: Karimi, Mohammad Hossein
name: Yaghobi, Ramin
name: Esfandiari, Elaheh
name: Shamsaeefar, Alireza
name: Nikeghbalian, Saman
name: Al-Abdullah, Ismail H.
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2019
Subjects: apoptosis
culture
Ginsenoside Rd
human pancreatic islets
insulin
transplantation

description: Ginsenoside Rd (GS-Rd), one of the main pharmacologically active components of ginseng, has shown the potential to stabilize mitochondrial membrane integrity and decrease apoptotic death in neuronal and non-neuronal cells. The present study aimed to evaluate the effect of this bioactive molecule on the apoptosis-associated cell death in human pancreatic islets. In this regard human pancreatic islets were isolated and grouped for the treatment with GS-Rd. The isolated islets were treated with different concentrations of GS-Rd. After 24 and 72 h of incubation, the islets were evaluated in terms of viability, BAX, BCL2, and insulin gene expression, BAX, BCL2, and caspase-3 protein expression, apoptosis, and glucose-induced insulin/C-peptide secretion. Our results revealed the islet survival was significantly decreased in the control group after 72 h of incubation. However, GS-Rd inhibited the progress of the islet death in the treated groups. TUNEL staining revealed that the preventive effect of this molecule was caused by the inhibition of apoptosis-associated death. In this regard, the activation of caspase-3 was down-regulated in the presence of GS-Rd. GS-Rd did not exhibit undesirable effects on glucose-induced insulin and C-peptide stimulation secretion. In conclusion, GS-Rd inhibited the progress of death of cultured human pancreatic islets by diminishing the apoptosis of the islet cells.
description: EXCLI Journal; 18:Doc666; ISSN 1611-2156
CNN Poll: December 2018 - Poll 12
Creators: name: CNN
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: President Trump job approval (8); Congressional job approval (1); more confidence in Trump or Democrats in Congress (1); favor building a wall along entire border with Mexico (2); favorability of public figures (14); Trump impeachment (1); optimistic about next few years (8); economic conditions in country (2); foreign trade effect on America (1); manufacturing jobs in America (1); Robert Mueller job approval (1); investigation into Russian attempt to influence election (4); murder of United States journalist in Saudi Arabia (2); winner of 2020 presidential election (1); Democratic Presidential primary support (2); registered to vote in your election district (1); telephone usage (4).
Temperature Increase of Highly-Polarized Fermi Liquids in Spin-Echo Experiments
Creators: name: Ragan, R.
name: Grunwald, K.
name: Glenz, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that there are restrictions on the maximum tipping angle that can be used without significantly raising the temperature of the He-3 distribution in high B/T spin-echo experiments with pure liquid He-3 and He3-He4 solutions. The temperature increase occurs during the diffusion process as quasiparticles in mixed-spin states are scattered and converted into thermal excitations at the spin-up and spin-down Fermi surfaces. This temperature increase can mimic the effects of zero temperature attenuation, leading to a higher values of the measured anisotropy temperature T_a. We analyze the dependence of the increase on polarization, initial temperature, He-3 concentration, and tip angle, and estimate the size of the effect in recent experiments.
description: 6 pages, 3 figures
Arctic narrative semantics in Soviet History, Fiction and Art of the 1930s
Creators: name: Penskaja, Elena
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Arctic space; Soviet Union; narrative strategy; cultural politics

description: The paper traces the very different contours of Soviet discourses of Arctic in the Stalinists 1930s with their narrative transformation of Arctic space into integral part of national Soviet space. The goal is to see how the Arctic narrative developed and evolved throughout the last 30/40 years of the Soviet era. The research is based on analysis of 3000 literary texts, articles, memoirs and letters, published and archived. The results confirm the presence of ‘Arctic discourse’ in the Soviet society and is supported by various sources. The Arctic issue became permanent in cultural and political practices of the time in the late 1920s and had a series of climaxes in the 1930s–1940s. Its popularity peaked in the mid-1950s and then dropped dramatically. The cultural and literary background of such change is explored through the narrative definitions.
description: ENTHYMEMA, No 13 (2015)
Twist-induced control of near-field heat radiation between magnetic Weyl semimetals
Creators: name: Tang, Gaomin
name: Chen, Jun
name: Zhang, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Due to the large anomalous Hall effect, magnetic Weyl semimetals can support nonreciprocal surface plasmon polariton modes in the absence of an external magnetic field. This implies that magnetic Weyl semimetals can find novel application in (thermal) photonics. In this work, we consider the near-field radiative heat transfer between two magnetic Weyl semimetal slabs and show that the heat transfer can be controlled with a relative rotation of the parallel slabs. Thanks to the intrinsic nonreciprocity of the surface modes, this so-called twisting method does not require surface structuring like periodic gratings. The twist-induced control of heat transfer is due to the mismatch of the surface modes from the two slabs with a relative rotation.
description: 6+3 pages, accepted in ACS Photonics
$t^{1/3}$ Superdiffusivity of Finite-Range Asymmetric Exclusion Processes on $\mathbb Z$
Creators: name: Quastel, Jeremy
name: Valko, Benedek
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35; 82C22

description: We consider finite-range asymmetric exclusion processes on $\mathbb Z$ with non-zero drift. The diffusivity $D(t)$ is expected to be of ${\mathcal O}(t^{1/3})$. We prove that $D(t)\ge Ct^{1/3}$ in the weak (Tauberian) sense that $\int_0^\infty e^{-λt}tD(t)dt \ge Cλ^{-7/3}$ as $λ\to 0$. The proof employs the resolvent method to make a direct comparison with the totally asymmetric simple exclusion process, for which the result is a consequence of the scaling limit for the two-point function recently obtained by Ferrari and Spohn. In the nearest neighbor case, we show further that $tD(t)$ is monotone, and hence we can conclude that $D(t)\ge Ct^{1/3}(\log t)^{-7/3}$ in the usual sense.
description: Version 3. Statement of Theorem 3 is corrected
Un singolare caso di rifrazione letteraria. A proposito di una generazione di autori di origine russa che scrive nella lingua del paese di adozione
Creators: name: Gigante, Giulia
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Rifrazione letteraria; scrittori russi emigrati; lingua del paese di adozione; contaminazione linguistica; mitopoiesi; Andreï Makine

description: Dall’esame di alcuni esempi di contesti narrativi e procedimenti stilistici caratteristici di diversi autori russi contemporanei che hanno scelto di scrivere nella lingua del paese in cui sono emigrati emerge una tendenza comune nella rappresentazione della Russia natia. Pur nella diversità delle loro opere, questi scrittori rappresentano la cultura delle loro radici avvalendosi di una visione ‘caleidoscopica’ in cui i riferimenti storici, letterari, artistici vengono rivisitati attraverso ricordi, sogni e riflessioni e filtrati attraverso la lingua e la cultura della loro terra adottiva.
From the investigation of some examples of narrative contexts and stylistic processes typical of various contemporary Russian authors who have chosen to write in the language of the country where they emigrated, a common tendency emerges concerning the representation of Russia. Despite the differences of the works considered, these authors represents the culture of their roots in a ‘kaleidoscopic’ way, reconsidering the historical, literary and artistic references through memories, dreams and reflections, filtering them through the language and culture of their chosen country.
description: ENTHYMEMA, No 13 (2015)
Differentiating dark interactions with perturbation
Creators: name: Sinha, Srijita
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A cosmological model with an energy transfer between dark matter (DM) and dark energy (DE) can give rise to comparable energy densities at the present epoch. The present work deals with the perturbation analysis, parameter estimation and Bayesian evidence calculation of interacting models with dynamical coupling parameter that determines the strength of the interaction. We have considered two cases, where the interaction is a more recent phenomenon and where the interaction is a phenomenon in the distant past. Moreover, we have considered the quintessence DE equation of state with Chevallier-Polarski-Linder (CPL) parametrisation and energy flow from DM to DE. Using the current observational datasets like the cosmic microwave background (CMB), baryon acoustic oscillation (BAO), Type Ia Supernovae (SNe Ia) and redshift-space distortions (RSD), we have estimated the mean values of the parameters. Using the perturbation analysis and Bayesian evidence calculation, we have shown that interaction present as a brief early phenomenon is preferred over a recent interaction.
description: Version published in Phys. Rev. D
Lexical and grammatical elicitation with a group of Kawaiwete teachers
Creators: name: Kayabi, Itarajup
name: Kayabi, Jywateju
name: Kayabi, Kapinua
name: Kayabi, Makatu
name: Kayabi, Mu'ni
name: Kayabi, Pikuruk
name: Kayabi, Tarejawat
name: Kayabi, Wyrakatu
name: Lapierre, Myriam
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Kawaiwete language

description: Recordings from group elicitation sessions with several Kawaiwete school teachers. This series of elicitations also included sporadic lessons on various linguistic topics for the teachers. See PDF pages 26-48 of associated field notes, as follows:

kyz_coletivo_20190527_jawarum_mjl_2_oficina: PDF pages 27-29
kyz_coletivo_20190527_jawarum_mjl_3_oficina: PDF pages 29-31
kyz_coletivo_20190527_jawarum_mjl_4_oficina: PDF pages 31-33
kyz_coletivo_20190528_jawarum_mjl_1_oficina: PDF pages 34-35
kyz_coletivo_20190528_jawarum_mjl_2_oficina: PDF pages 35-36
kyz_coletivo_20190528_jawarum_mjl_3_oficina: PDF page 36
kyz_coletivo_20190528_jawarum_mjl_4_oficina: PDF pages 37-39
kyz_coletivo_20190529_jawarum_mjl_1_oficina: PDF pages 39-40
kyz_coletivo_20190529_jawarum_mjl_2_oficina: PDF pages 40-41
kyz_coletivo_20190529_jawarum_mjl_3_oficina: PDF pages 41-43
kyz_coletivo_20190529_jawarum_mjl_4_oficina: PDF pages 43-44
kyz_coletivo_20190531_jawarum_mjl_1_oficina: PDF page 45
kyz_coletivo_20190531_jawarum_mjl_2_oficina: PDF pages 46-49
kyz_coletivo_20190601_jawarum_mjl_1_oficina: no associated notes
kyz_coletivo_20190601_jawarum_mjl_2_oficina: no associated notes
Extracting Star Formation Histories from Medium-resolution Galaxy Spectra
Creators: name: Mathis, Hugues
name: Charlot, Stephane
name: Brinchmann, Jarle
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We adapt an existing data compression algorithm, MOPED, to the extraction of median-likelihood star formation (SF) histories from medium-resolution galaxy spectra. By focusing on the high-pass components of galaxy spectra, we minimize potential uncertainties arising from the spectro-photometric calibration and intrinsic attenuation by dust. We validate our approach using model high-pass spectra of galaxies with different SF histories covering the wavelength range 3650-8500 A at a resolving power of about 2000. We show that the method can recover the full SF histories of these models, without prior knowledge of the metallicity, to within an accuracy that depends sensitively on signal-to-noise ratio. The investigation of the sensitivity of the flux at each wavelength to the mass fraction of stars of different ages allows us to identify new age-sensitive features in galaxy spectra. We also highlight a fundamental limitation in the recovery of the SF histories of galaxies for which the optical signatures of intermediate-age stars are masked by those of younger and older stars. We apply this method to derive average SF histories from the highest-quality spectra of morphologically identified early- and late-type galaxies in the SDSS EDR [...]. We also investigate the constraints set by the high-pass signal in the stacked spectra of a magnitude-limited sample of SDSS-EDR galaxies on the global SF history of the Universe. We confirm that the stellar populations in the most massive galaxies today appear to have formed on average earlier than those in the least massive ones. Our results do not support the recent suggestion of a statistically significant peak in the SF activity of the Universe at redshifts below unity, although such a peak is not ruled out [abridged].
description: 18 pages, 14 figures, to appear in MNRAS; version with full resolution figures available at http://www.mpa-garching.mpg.de/~charlot/SFH/
Entrainment and chaos in a pulse-driven Hodgkin-Huxley oscillator
Creators: name: Lin, Kevin K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Biological sciences
subject: 37N25

description: The Hodgkin-Huxley model describes action potential generation in certain types of neurons and is a standard model for conductance-based, excitable cells. Following the early work of Winfree and Best, this paper explores the response of a spontaneously spiking Hodgkin-Huxley neuron model to a periodic pulsatile drive. The response as a function of drive period and amplitude is systematically characterized. A wide range of qualitatively distinct responses are found, including entrainment to the input pulse train and persistent chaos. These observations are consistent with a theory of kicked oscillators developed by Qiudong Wang and Lai-Sang Young. In addition to general features predicted by Wang-Young theory, it is found that most combinations of drive period and amplitude lead to entrainment instead of chaos. This preference for entrainment over chaos is explained by the structure of the Hodgkin-Huxley phase resetting curve.
description: Minor revisions; modified Fig. 3; added references
Analysis of Light Neutrino Exchange and Short-Range Mechanisms in $0νββ$ Decay
Creators: name: Deppisch, Frank F.
name: Graf, Lukas
name: Iachello, Francesco
name: Kotila, Jenni
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutrinoless double beta decay ($0νββ$) is a crucial test for lepton number violation. Observation of this process would have fundamental implications for neutrino physics, theories beyond the Standard Model and cosmology. Focussing on so called short-range operators of $0νββ$ and their potential interplay with the standard light Majorana neutrino exchange, we present the first complete calculation of the relevant nuclear matrix elements, performed within the interacting boson model (IBM-2). Furthermore, we calculate the relevant phase space factors using exact Dirac electron wavefunctions, taking into account the finite nuclear size and screening by the electron cloud. The obtained numerical results are presented together with up-to-date limits on the standard mass mechanism and effective $0νββ$ short-range operators in the IBM-2 framework. Finally, we interpret the limits in the particle physics scenarios incorporating heavy sterile neutrinos, Left-Right symmetry and R-parity violating supersymmetry.
description: 54 pages, 10 figures, 14 tables, including appendix, v2 matches published version
Chaos in a generalized Lorenz system
Creators: name: Belokolos, E. D.
name: Kharchenko, V. O.
name: Kharchenko, D. O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A three-component dynamic system with influence of pumping and nonlinear dissipation describing a quantum cavity electrodynamic device is studied. Different dynamical regimes are investigated in terms of divergent trajectories approaches and fractal statistics. It has been shown, that in such a system stable and unstable dissipative structures type of limit cycles can be formed with variation of pumping and nonlinear dissipation rate. Transitions to chaotic regime and the corresponding chaotic attractor are studied in details.
Testing the effectiveness of interactive training on sexual harassment and assault in field science [Registered Report Stage 1 protocol]
Creators: name: Cronin, Melissa
name: Zavaleta, Erika
name: S. Beltran, Roxanne
name: Payne, Allison
name: Termini, Valerie
name: Jones, Megan
Publisher: name: figshare
Year: 2024
Subjects: Psychology not elsewhere classified

description: Abstract:
 

Fieldwork is a critical tool for scientific research, particularly in applied disciplines. Yet fieldwork is often unsafe, particularly for members of historically marginalized groups and those whose presence in scientific spaces threatens traditional hierarchies of power, authority, and legitimacy. Research is needed to identify interventions that prevent sexual harassment and assault from occurring in the first place. We will conduct a quasi-experiment assessing the impacts of a 90-minute interactive training on field-based staff in a United States state government agency. We hypothesize that the knowledge-based interventions, social modeling, and mastery experiences included in the training will increase participants’ sexual harassment and assault prevention knowledge, self-efficacy, behavioral intention, and behavior after the training compared to a control group of their peers. Results will confirm or refute the utility of a peer-led interactive intervention for improving workplace culture and safety in scientific settings.
Gravitational wave background in perfect fluid quantum cosmologies
Creators: name: Peter, Patrick
name: Pinho, Emanuel J. C.
name: Pinto-Neto, Nelson
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the gravitational wave background produced by bouncing models based on a full quantum evolution of a universe filled with a perfect fluid. Using an ontological interpretation for the background wave function allows us to solve the mode equations for the tensorial perturbations, and we find the spectral index as a function of the fluid equation of state.
description: 12 pages, 5 figures, to appear in Phys. Rev. D (2006)
Fully Geant4 compatible package for the simulation of Dark Matter in fixed target experiments
Creators: name: Bondi, M.
name: Celentano, A.
name: Dusaev, R. R.
name: Kirpichnikov, D. V.
name: Kirsanov, M. M.
name: Krasnikov, N. V.
name: Marsicano, L.
name: Shchukin, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the package for the simulation of DM (Dark Matter) particles in fixed target experiments. The most convenient way of this simulation (and the only possible way in the case of beam-dump) is to simulate it in the framework of the program for tracing particles in the experimental setup. One of the most popular such programs is Geant4. Specifically, the package includes the processes of DM particles production via electron and muon bremsstrahlung off nuclei, resonant in-flight positron annihilation on atomic electrons and gamma to ALP (axion-like particles) conversion on nuclei. Four types of DM mediator particles are considered: vector, scalar, pseudoscalar and axial vector. In particular, for bremsstrahlung the total cross sections are calculated at exact tree level (ETL). The code handles both the case of invisible DM mediator decay and of visible decay into $e^+e^-$ (or into $γγ$ in the case of ALP). The software consists of a collection of different classes, inheriting from the Geant4 framework classes, thus the expected use of this package is to include it in a Geant4-based code for the simulation of particles propagation and interaction in the detector. As an example of its usage, we discuss the results obtained from the simulation of a typical active beam-dump experiment, considering $5 \times 10^{12}$ 100 GeV electrons impinging on a lead/plastic scintillator active thick target, showing the expected sensitivity for the four types of DM mediator particles mentioned above.
description: 10 pages, 4 figures
Fully Algebraic and Self-consistent Effective Dynamics in a Static Quantum Embedding
Creators: name: Sriluckshmy, P. V.
name: Nusspickel, Max
name: Fertitta, Edoardo
name: Booth, George H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Quantum embedding approaches involve the self-consistent optimization of a local fragment of a strongly correlated system, entangled with the wider environment. The `energy-weighted' density matrix embedding theory (EwDMET) was established recently as a way to systematically control the resolution of the fragment-environment coupling, and allow for true quantum fluctuations over this boundary to be self-consistently optimized within a fully static framework. In this work, we reformulate the algorithm to ensure that EwDMET can be considered equivalent to an optimal and rigorous truncation of the self-consistent dynamics of dynamical mean-field theory (DMFT). A practical limitation of these quantum embedding approaches is often a numerical fitting of a self-consistent object defining the quantum effects. However, we show here that in this formulation, all numerical fitting steps can be entirely circumvented, via an effective Dyson equation in the space of truncated dynamics. This provides a robust and analytic self-consistency for the method, and an ability to systematically and rigorously converge to DMFT from a static, wave function perspective. We demonstrate that this improved approach can solve the correlated dynamics and phase transitions of the Bethe lattice Hubbard model in infinite dimensions, as well as one- and two-dimensional Hubbard models where we clearly show the benefits of this rapidly convergent basis for correlation-driven fluctuations. This systematically truncated description of the effective dynamics of the problem also allows access to quantities such as Fermi liquid parameters and renormalized dynamics, and demonstrates a numerically efficient, systematic convergence to the zero-temperature dynamical mean-field theory limit.
description: 15 pages, 10 figures
Text Mining Applications to Support Health Library Practice: A Case Study on Marijuana Legalization Twitter Analytics
Creators: Kung, Janice Y
Shiri, Ali
Ly, Kynan
Publisher: name: University of Alberta Library
Year: 2024

Background: Twitter is rich in data for text and data analytics research, with the ability to capture trends.

Objectives: This study examines Canadian tweets on marijuana legalization and terminology use. Presented as a case study, Twitter analytics will demonstrate the varied applications of how this kind of research method may be used to inform library practice.

Methods: Twitter API was used to extract a subset of tweets using seven relevant hashtags. Using open source programming tools, the sampled tweets were analyzed between September to November 2018, identifying themes, frequently used terms, sentiment, and co-occurring hashtags.

Results: More than 1,176,000 tweets were collected. The most popular hashtag co-occurrence, two hashtags appearing together, was #cannabis and #CdnPoli. There was a high variance in the sentiment analysis of all collected tweets but most scores had neutral sentiment.

Discussion: The case study presents text-mining applications relevant to help make informed decisions in library practice through service analysis, quality analysis, and collection analysis.

Conclusions: Findings from sentiment analysis may determine usage patterns from users. There are several ways in which libraries may use text mining to make evidence-informed decisions such as examining all possible terminologies used by the public to help inform comprehensive evidence synthesis projects and build taxonomies for digital libraries and repositories.

This is the peer reviewed version of the following article: Kung JY, Ly K, Shiri A. Text mining applications to support health library practice: A case study on marijuana legalization Twitter analytics. Health Info Libr J. 2023 Jan 4. doi: 10.1111/hir.12473., which has been published in final form at 10.1111/hir.12473.
Forest matrices around the Laplacian matrix
Creators: name: Chebotarev, Pavel
name: Agaev, Rafig
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50; 05C05; 05C20; 15A48; 15A09

description: We study the matrices Q_k of in-forests of a weighted digraph G and their connections with the Laplacian matrix L of G. The (i,j) entry of Q_k is the total weight of spanning converging forests (in-forests) with k arcs such that i belongs to a tree rooted at j. The forest matrices, Q_k, can be calculated recursively and expressed by polynomials in the Laplacian matrix; they provide representations for the generalized inverses, the powers, and some eigenvectors of L. The normalized in-forest matrices are row stochastic; the normalized matrix of maximum in-forests is the eigenprojection of the Laplacian matrix, which provides an immediate proof of the Markov chain tree theorem. A source of these results is the fact that matrices Q_k are the matrix coefficients in the polynomial expansion of adj(a*I+L). Thereby they are precisely Faddeev's matrices for -L. Keywords: Weighted digraph; Laplacian matrix; Spanning forest; Matrix-forest theorem; Leverrier-Faddeev method; Markov chain tree theorem; Eigenprojection; Generalized inverse; Singular M-matrix
description: 19 pages, presented at the Edinburgh (2001) Conference on Algebraic Graph Theory
Self-Devaluation and Political Alienation Data Set
Creators: name: Sainz, Mario
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences
subject: Data Set
subject: Educational Attainment
subject: Political Alienation
subject: Self-Devaluation

description: This preregistration aims to capture the full disclosure of variable lists with details that will be part of a survey measuring individuals' self-devaluation and political alienation as a function of the participant's educational attainment. Data and codebook will be shared on this OSF project upon data collection.
Transport and localization of light inside a dye-filled microcavity
Creators: name: Dhar, Himadri S.
name: Rodrigues, João D.
name: Walker, Benjamin T.
name: Oulton, Rupert F.
name: Nyman, Robert A.
name: Mintert, Florian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The driven-dissipative nature of light-matter interaction inside a multimode, dye-filled microcavity makes it an ideal system to study nonequilibrium phenomena, such as transport. In this work, we investigate how light is efficiently transported inside such a microcavity, mediated by incoherent absorption and emission processes. In particular, we show that there exist two distinct regimes of transport, viz. conductive and localized, arising from the complex interplay between the thermalizing effect of the dye molecules and the nonequilibrium influence of driving and loss. The propagation of light in the conductive regime occurs when several localized cavity modes undergo dynamical phase transitions to a condensed, or lasing, state. Further, we observe that while such transport is robust for weak disorder in the cavity potential, strong disorder can lead to localization of light even under good thermalizing conditions. Importantly, the exhibited transport and localization of light is a manifestation of the nonequilibrium dynamics rather than any coherent interference in the system.
description: 10 pages, 6 figures. Accepted version
Coulomb energy and gluon distribution in the presence of static sources
Creators: name: Szczepaniak, Adam P.
name: Krupinski, Pawel
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the energy of the ground state and a low lying excitation of the gluonic field in the presence of static quark -anti-quark ($\qq$) sources. We show that for separation between the sources less then a few fm the gluonic ground state of the static $\qq$ system can be well described in terms of a mean field wave functional with the excited states corresponding to a single quasi-particle excitation of the gluon field. We also discuss the role of many particle excitations relevant for large separation between sources.
description: 14 pages, 11 figures
Lexical and grammatical elicitation
Creators: name: Kayabi, Sirakup
name: Lapierre, Myriam
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Kawaiwete language

description: See PDF pages 51-65 of associated field notes, as follows:

kyz_sirakup_20190606_capiwat_mjl_1_elicit: PDF pages 51-52
kyz_sirakup_20190606_capiwat_mjl_2_elicit: PDF pages 51-54
kyz_sirakup_20190606_capiwat_mjl_3_elicit: PDF pages 55-56
kyz_sirakup_20190606_capiwat_mjl_4_elicit: PDF pages 56-58
kyz_sirakup_20190607_capiwat_mjl_1_elicit: PDF pages 59-60
kyz_sirakup_20190607_capiwat_mjl_2_elicit: PDF pages 60-61
kyz_sirakup_20190607_capiwat_mjl_3_elicit: PDF pages 61-63
kyz_sirakup_20190607_capiwat_mjl_4_elicit: PDF pages 63-65