cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Structure and Dynamics of GRB Jets
Creators: name: Granot, Jonathan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There are several lines of evidence which suggest that the relativistic outflows in gamma-ray bursts (GRBs) are collimated into narrow jets. The jet structure has important implications for the true energy release and the event rate of GRBs, and can constrain the mechanism responsible for the acceleration and collimation of the jet. Nevertheless, the jet structure and its dynamics as it sweeps up the external medium and decelerates, are not well understood. In this review I discuss our current understanding of GRB jets, stressing their structure and dynamics.
description: 27 pages, 26 figures; invited review for the proceedings of the conference "Triggering Relativistic Jets", held in Cozumel, Mexico, on March 28 to April 1, 2005; accepted for publication in Rev. Mex. A&A
title: Developing the Intervention Evidence Base for Children and Young People who have Experienced Domestic Violence and Abuse
Creators: name: Carter, GJ
Publisher: name: University of Liverpool Repository
Year: 2019

description: Domestic violence and abuse (DVA) is a global health problem and it is widely established that children and young people can be negatively affected by experiencing DVA (Potter & Feder, 2017). The current evidence base for interventions delivered in the United Kingdom (UK) targeted at children who have experienced DVA is underdeveloped and inconclusive; few qualitative studies have explored the experiences of those who have provided or received such interventions (Howarth et al., 2016). This thesis explored two research questions: RQ1: How do intervention recipients and providers perceive interventions targeted at children and young people who have experienced DVA? RQ2: How can the evidence base be improved for interventions targeted at children and young people who have experienced DVA? Study 1 aimed to assess the effectiveness of three psychotherapeutic interventions by analysing evaluation data and pre- and post- intervention outcomes. The limited data available meant that the aim of Study 1 was not achieved. In response, Study 2 qualitatively examined the experiences of individuals who receive and deliver interventions targeted at children who have experienced DVA and aimed to identify the difficulties of demonstrating intervention effectiveness. Study 2 comprised 35 semi-structured in-depth interviews with the following intervention stakeholders: children (n=3), parents (n=6) and intervention providers (n=12). The interviews were analysed using Thematic Analysis (Braun & Clarke, 2006). Six themes were developed: Divergent perceptions about an intervention’s purpose; The timing of an intervention; The appropriate length of an intervention; The significance of who delivers an intervention; Barriers to evaluating interventions; and The contribution of qualitative methods in examining intervention outcomes. The results and lessons learned from Studies 1 and 2 are presented in three meta-themes: (1) The value of the voice of the child; (2) A lack of appreciation for divergent views; (3) The impact of organisational context. This thesis makes invaluable contributions for the future development of the evidence base for interventions targeted at children who have experienced DVA. This thesis advocates that the voices of children and young people must be fundamental to developing and evaluating interventions that are available to them. As intervention stakeholders can view an intervention from different angles this can influence intervention engagement and outcomes. Therefore, understanding why perceptions about interventions differ is paramount to reconcile. Finally, the organisational context in which interventions are provided may hinder joint-working, and the delivery and robust evaluation of interventions, subsequently hampering the evidence base of interventions. The limitations are discussed and implications for theory, policy, practice and research are presented.
The Pressure of an Equilibrium Interstellar Medium in Galactic Disks
Creators: name: Kasparova, A. V.
name: Zasov, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on an axisymmetric galactic disk model, we estimate the equilibrium gas pressure P/k in the disk plane as a function of the galactocentric distance R for several galaxies (MW, M33, M51, M81, M100, M101, M106, and the SMC). For this purpose, we solve a self-consistent system of equations by taking into account the gas self-gravity and the presence of a dark pseudo-isothermal halo. We assume that the turbulent velocity dispersions of the atomic and molecular gases are fixed and that the velocity dispersion of the old stellar disk corresponds to its marginal stability (except for the Galaxy and the SMC). We also consider a model with a constant disk thickness. Of the listed galaxies, the SMC and M51 have the highest pressure at a given relative radius R/R_25, while M81 has the lowest pressure. The pressure dependence of the relative molecular gas fraction confirms the existence of a positive correlation between these quantities, but it is not so distinct as that obtained previously when the pressure was estimated very roughly. This dependence breaks down for the inner regions of M81 and M106, probably because the gas pressure has been underestimated in the bulge region. We discuss the possible effects of factors other than the pressure affecting the relative content of molecular gas in the galaxies under consideration.
description: 10 pages, 5 figures
Computation capacities of a broad class of signaling networks are higher than their communication capacities
Creators: name: Habibi, Iman
name: Emamian, Effat S
name: Simeone, Osvaldo
name: Abdi, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Information Theory (cs.IT)
subject: Subcellular Processes (q-bio.SC)
subject: Computation (stat.CO)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Due to structural and functional abnormalities or genetic variations and mutations, there may be dysfunctional molecules within an intracellular signaling network that do not allow the network to correctly regulate its output molecules, such as transcription factors. This disruption in signaling interrupts normal cellular functions and may eventually develop some pathological conditions. In this paper, computation capacity of signaling networks is introduced as a fundamental limit on signaling capability and performance of such networks. The computation capacity measures the maximum number of computable inputs, that is, the maximum number of input values for which the correct functional output values can be recovered from the erroneous network outputs, when the network contains some dysfunctional molecules. This contrasts with the conventional communication capacity that measures instead the maximum number of input values that can be correctly distinguished based on the erroneous network outputs. The computation capacity is higher than the communication capacity, if the network response function is not a one-to-one function of the input signals. By explicitly incorporating the effect of signaling errors that result in the network dysfunction, the computation capacity provides more information about the network and its malfunction. Two examples of signaling networks are studied here, one regulating caspase3 and another regulating NFkB, for which computation and communication capacities are analyzed. Higher computation capacities are observed for both networks. One biological implication of this finding is that signaling networks may have more capacity than that specified by the conventional communication capacity metric. The effect of feedback is also studied. In summary, this paper reports findings on a new fundamental feature of the signaling capability of cell signaling networks.
description: 51 pages, 8 figures
A Cosmic Ray Resolution to the Superbubble Energy-Crisis
Creators: name: Butt, Yousaf M.
name: Bykov, Andrei M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Superbubbles (SBs) are amongst the greatest injectors of energy into the Galaxy, and have been proposed to be the acceleration site of Galactic cosmic rays. They are thought to be powered by the fast stellar winds and powerful supernova explosions of massive stars in dense stellar clusters and associations. Observations of the SB 'DEM L192' in the neighboring Large Magellenic Cloud (LMC) galaxy show that it contains only about one-third the energy injected by its constituent stars via fast stellar winds and supernovae. It is not yet understood where the excess energy is going, thus, the so-called 'energy crisis'. We show here that it is very likely that a significant fraction of the unaccounted for energy is being taken up in accelerating cosmic rays, thus bolstering the argument for the SB origin of cosmic rays.
description: Accepted for publication in ApJL
Lepton-flavour violation in hadronic tau decays and $μ-τ$ conversion in nuclei
Creators: name: Husek, Tomas
name: Monsalvez-Pozo, Kevin
name: Portoles, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Within the Standard Model Effective Field Theory framework, with operators up to dimension 6, we perform a model-independent analysis of the lepton-flavour-violating processes involving tau leptons. Namely, we study hadronic tau decays and $\ell$--$τ$ conversion in nuclei, with $\ell = e,μ$. Based on available experimental limits, we establish constraints on the Wilson coefficients of the operators contributing to these processes. Our work paves the way to extract the related information from Belle II and foreseen future experiments.
description: 49 pages, 12 figures
Bayesian analysis of Juno/JIRAM's NIR observations of Europa
Creators: name: Mishra, Ishan
name: Lewis, Nikole
name: Lunine, Jonathan
name: Helfenstein, Paul
name: MacDonald, Ryan J.
name: Filacchione, Gianrico
name: Ciarniello, Mauro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Juno spacecraft's spectrometer JIRAM recently observed the moon Europa in the 2-5 μm wavelength region. Here we present analysis of the average spectrum of a set of observations near 20°N and 40°W, focusing on the two forms of water-ice - amorphous and crystalline. We also take this as an opportunity to present a novel Bayesian spectral inversion framework for reflectance spectroscopy. We first validate this framework using simulated spectra of amorphous and crystalline ice mixtures and a laboratory spectrum of crystalline ice. We next analyze the JIRAM data and, through Bayesian model comparisons, find that a two-component intimately mixed model (TC-IM model) of amorphous and crystalline ice is strongly preferred (at 26σ confidence) over a two-component model of the same species but where their spectra are areally/linearly mixed. We also find that the TC-IM model is strongly preferred (at > 30σ confidence) over single-component models with only amorphous or crystalline ice, indicating the presence of both these phases of water ice in the data. For the highest SNR estimates of the JIRAM data, the TC-IM model solution corresponds to a mixture with a very large number density fraction (99.952 +/- 0.001 \%) of small (23.12 +/- 1.01 microns) amorphous ice grains, and a very small fraction (0.048 +/- 0.001 \%) of large (565.34 +/- 1.01 microns) crystalline ice grains. The overabundance of small amorphous ice grains we find is consistent with previous studies. The maximum-likelihood spectrum of the TC-IM model, however, is in tension with the data in the regions around 2.5 and 3.6 μm, and indicates the presence of non-ice components not currently included in our model, primarily due to the limited availability of cryogenic optical constants.
description: 34 pages, 18 figures. To appear in Icarus (In Press); added references in Introduction
Influence of Temperature, Pressure and Humidity on the Stabilities and Transitions Kinetics of the Various Polymorphs of FAPbI$_3$
Creators: name: Cordero, Francesco
name: Craciun, Floriana
name: Trequattrini, Francesco
name: Generosi, Amanda
name: Paci, Barbara
name: Paoletti, Anna Maria
name: Zanotti, Gloria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phase transitions between the various polymorphs of FAPbI$_{3}$ (FAPI, FA = formamidinium CH(NH$_{2}$)$_{2}^+$) are studied by anelastic, dielectric and X--ray diffraction measurements on samples pressed from $δ-$FAPI (2H phase) yellow powder. The samples become orange after application of as little as 0.2~GPa, which has been explained in terms of partial transformations to the other hexagonal polymorphs 4H and 6H. The phenomenon is discussed in the light of what is known about the stability of the various polymorphs of hybrid and inorganic perovskites ABX$_{3}$ with large A cations and hence large tolerance factor $t$. Remarkably, FAPI at room and higher temperature behaves like a perovskite with large $t$, while just below room temperature it behaves like a perovskite with small $t$. The kinetics of the transformations between the polymorphs is enhanced by small amounts of intercalated water. It seems therefore worthy to try improving the atomic diffusion and crystallization during synthesis, and hence the final photovoltaic performance, through controlled small amounts of water that should be thoroughly removed after a sufficiently homogeneous and smooth microstructure is achieved.
Modified teleparallel gravity: inflation without inflaton
Creators: name: Ferraro, Rafael
name: Fiorini, Franco
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Born-Infeld strategy to smooth theories having divergent solutions is applied to teleparallel equivalent of General Relativity. Differing from other theories of modified gravity, modified teleparallelism leads to second order equations, since teleparallel Lagrangian only contains first derivatives of the vierbein. We show that Born-Infeld-modified teleparallelism solves the particle horizon problem in a spatially flat FRW universe by providing an initial exponential expansion without resorting to an inflaton field.
description: 4 pages, 2 figures. Version to be published in Physical Review D
Gas compression and stellar feedback in the tidally interacting and ram-pressure stripped Virgo spiral galaxy NGC 4654
Creators: name: Lizée, T.
name: Vollmer, B.
name: Braine, J.
name: Nehlig, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: NGC 4654 is a Virgo galaxy seen almost face-on, which undergoes nearly edge-on gas ram pressure stripping and a fly-by gravitational interaction with another massive galaxy, NGC 4639. NGC 4654 shows a strongly compressed gas region near the outer edge of the optical disk, with HI surface densities (HSDR), exceeding the canonical value of 10-15 Msun/pc2. New IRAM 30m HERA CO(2-1) data of NGC 4654 are used to study the physical conditions of the ISM. The CO-to-H$_2$ conversion factor was estimated and found to be one to two times the Galactic value with significant decrease in the ratio between the molecular fraction and the total ISM pressure in the HSDR, self-gravitating gas, a Toomre parameter below $Q=1$ and star-formation efficiency 1.5-2 times higher. Analytical models were used to reproduce radial profiles of the SFR and the atomic and molecular surface densities. A Toomre parameter of $\rm Q \sim 0.8$ combined with an increase in the velocity dispersion of 5 km/s are necessary conditions to simultaneously reproduce the gas surface densities and the SFR. A dynamical model was used to reproduce the gas distribution of NGC 4654. The comparison between the velocity dispersion given by the moment 2 map and the intrinsic 3D velocity dispersion from the model were used to discriminate between regions of broader linewidths caused by a real increase in the velocity dispersion and those caused by an unresolved velocity gradient only. We found that the 5 km/s increase in the intrinsic velocity dispersion is compatible with observations. During a period of gas compression through external interactions, the gas surface density is enhanced, leading to an increased SFR and stellar feedback. Under the influence of stellar feedback, the gas density increases only moderately. The stellar feedback acts as a regulator of star-formation, increasing the turbulent velocity within the region.
description: 27 pages, 48 figures, 4 tables, accepted for publication in A&A
A Strong Correlation between Circumnuclear Dust and Black Hole Accretion in Early-Type Galaxies
Creators: name: Lopes, Ramiro D. Simões
name: Storchi-Bergmann, Thaisa
name: Saraiva, Maria de Fátima O.
name: Martini, Paul
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed investigation of the incidence of circumnuclear dust structure in a large, well-matched sample of early-type galaxies with and without Active Galactic Nuclei (AGN). All 34 early-type AGN hosts in our sample have circumnuclear dust, while dust is only observed in 26% (nine) of a pair-matched sample of 34 early-type, inactive galaxies. This result demonstrates a strong correlation between the presence of circumnuclear dust and accretion onto the central, supermassive black hole in elliptical and lenticular galaxies. This correlation is not present at later Hubble types, where a sample of 31 active and 31 inactive galaxies all contain circumnuclear dust. These archival, HST observations reveal a wide range of mostly chaotic dust morphologies. Current estimates suggest the dust settling or destruction time is on order of 10^8 years and therefore the presence of dust in ~ 50% of early-type galaxies requires frequent replenishment and similarly frequent fueling of their central, supermassive black holes. The observed dust could be internally-produced (via stellar winds) or externally-accreted, although there are observational challenges for both of these scenarios. Our analysis also reveals that approximately a third of the early-type galaxies without circumnuclear dust have nuclear stellar disks. These nuclear stellar disks may provide a preferred kinematic axis to externally-accreted material and this material may in turn form new stars in these disks. The observed incidence of nuclear stellar disks and circumnuclear dust suggests that episodic replenishment of nuclear stellar disks occurs and is approximately concurrent with the fueling of the central AGN.
description: ApJ, in press. 35 pages, 8 figures, 2 tables
Two-channel Feshbach physics in a structured continuum
Creators: name: Nygaard, N.
name: Piil, R.
name: Molmer, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the scattering and bound state physics of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. The lattice provides a structured continuum allowing for the existence of bound dimer states both below and above the continuum bands, with pairs above the continuum stabilized by either repulsive interactions or their center of mass motion. Inside the band the Feshbach coupling to a closed channel bound state leads to a Fano resonance profile for the transmission, which may be mapped out by RF- or photodissociative spectroscopy. We generalize the scattering length concept to the one-dimensional lattice, where a scattering length may be defined at both the lower and the upper continuum thresholds. As a function of the applied magnetic field the scattering length at either band edge exhibits the usual Feshbach divergence when a bound state enters or exits the continuum. Near the scattering length divergences the binding energy and wavefunction of the weakly bound dimer state acquires a universal form reminiscent of those of free-space Feshbach molecules. We give numerical examples of our analytic results for a specific Feshbach resonance, which has been studied experimentally.
description: 18 pages, 9 embedded figures
On the non-integrability and dynamics of discrete models of threads
Creators: name: Kozlov, Valery
name: Polekhin, Ivan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In the paper, we study the dynamics of planar $n$-gons, which can be considered as discrete models of threads. The main result of the paper is that, under some weak assumptions, these systems are not integrable in the sense of Liouville. This holds for both completely free threads and for threads with fixed points that are placed in external force fields. We present sufficient conditions for the positivity of topological entropy in such systems. We briefly consider other dynamical properties of discrete threads and we also consider discrete models of inextensible yet compressible threads.
Rhabdoblatta usambarensis
Creators: name: Mbia, Donald-L'or Nyame
name: Ngon, Eric Belmond Biram à
name: Legendre, Frédéric
name: Menbohan, Samuel Foto
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Blaberidae
Rhabdoblatta
Rhabdoblatta usambarensis

description: Rhabdoblatta usambarensis (Rehn, 1931)
Fig. 27; Table 9
Epilampra usambarensis Rehn, 1931: 375.
Epilampra usambarensis – Princis 1965: 122.
Rhabdoblatta usambarensis – Princis 1967: 679.
Material examined
TANZANIA • 1 ♀; “Tanganyika Terr., Bunduki, Ulguru Mts., moy. Mgeta 1300 m; 30-IV / 11-V-1957; Mission Zoolog. I.R.S.A.C. en Afrique orientale; P. Basilewsky et N. Leleup; Coll. Mus. Congo”; RMCA.
Diagnosis and history
Rehn (1931) gave a complete description, apart from the genitalia, of this species from a unique male specimen. Later, the female was found and told to be very similar to the male (Princis 1965). Although the type specimen is mentioned as deposited in the Berlin Zoological Museum, it was not found there and might be lost. We complement Rehn’s description with some pictures of this elongated species, only known from Tanzania (Fig. 26).
Measurements of adults
Female (n = 1): pronotum length × width: 4.8×6.3, tegmina length: 21.7, overall length ×width: 20 ×7.9.
Habitat
Unknown.
Distribution
This species is only known from Tanzania (Table 9).
description: Published as part of Mbia, Donald-L'or Nyame, Ngon, Eric Belmond Biram à, Legendre, Frédéric & Menbohan, Samuel Foto, 2024, Semi-aquatic Epilamprinae cockroaches (Blattodea: Blaberidae) in Cameroon: towards a revision of continental African species of Rhabdoblatta Kirby, 1903 and Africalolampra Roth, 1995, pp. 1-57 in European Journal of Taxonomy 946 (1) on pages 40-41, DOI: 10.5852/ejt.2024.946.2615, http://zenodo.org/record/13177205
Earth as a Proxy Exoplanet: Deconstructing and Reconstructing Spectrophotometric Light Curves
Creators: name: Gu, Lixiang
name: Fan, Siteng
name: Li, Jiazheng
name: Bartlett, Stuart
name: Natraj, Vijay
name: Jiang, Jonathan H.
name: Crisp, David
name: Hu, Yongyun
name: Tinetti, Giovanna
name: Yung, Yuk L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Point source spectrophotometric ("single-point") light curves of Earth-like planets contain a surprising amount of information about the spatial features of those worlds. Spatially resolving these light curves is important for assessing time-varying surface features and the existence of an atmosphere, which in turn is critical to life on Earth and significant for determining habitability on exoplanets. Given that Earth is the only celestial body confirmed to harbor life, treating it as a proxy exoplanet by analyzing time-resolved spectral images provides a benchmark in the search for habitable exoplanets. The Earth Polychromatic Imaging Camera (EPIC) on the Deep Space Climate Observatory (DSCOVR) provides such an opportunity, with observations of ~5000 full-disk sunlit Earth images each year at ten wavelengths with high temporal frequency. We disk-integrate these spectral images to create single-point light curves and decompose them into principal components (PCs). Using machine learning techniques to relate the PCs to six preselected spatial features, we find that the first and fourth PCs of the single-point light curves, contributing ~83.23% of the light curve variability, contain information about low and high clouds, respectively. Surface information relevant to the contrast between land and ocean reflectance is contained in the second PC, while individual land sub-types are not easily distinguishable (<0.1% total light curve variation). We build an Earth model by systematically altering the spatial features to derive causal relationships to the PCs. This model can serve as a baseline for analyzing Earth-like exoplanets and guide wavelength selection and sampling strategies for future observations.
description: Accepted by AJ, 10 pages, 2 tables, 13 figures
The BDX-MINI detector for Light Dark Matter search at JLab
Creators: name: Battaglieri, M.
name: Bisio, P.
name: Bondí, M.
name: Celentano, A.
name: Cole, P. L.
name: De Napoli, M.
name: De Vita, R.
name: Marsicano, L.
name: Ottonello, G.
name: Parodi, F.
name: Randazzo, N.
name: Smith, E. S.
name: Snowden-Ifft, D.
name: Spreafico, M.
name: Whitlatch, T.
name: Wood, M. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This paper describes the design and performance of a compact detector, BDX-MINI, that incorporates all features of a concept that optimized the detection of light dark matter produced by electrons in a beam dump. It represents a reduced version of the future BDX experiment expected to run at JLAB. BDX-MINI was exposed to penetrating particles produced by a 2.176 GeV electron beam incident on the beam dump of Hall A at Jefferson Lab. The detector consists of 30.5 kg of PbWO4 crystals with sufficient material following the beam dump to eliminate all known particles except neutrinos. The crystals are read out using silicon photomultipliers. Completely surrounding the detector are a passive layer of tungsten and two active scintillator veto systems, which are also read out using silicon photomultipliers. The design was validated and the performance of the robust detector was shown to be stable during a six month period during which the detector was operated with minimal access.
Ökumenischer Rat der Kirchen in Österreich (Hrsg.), Begegnung und Inspiration
Creators: name: Voigt, Karl Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 2 (2009): Ökumenische Rundschau, Band 58, Heft 2
Topic time : the syntax and semantics of SqwXwu7mish temporal adverbials
Creators: name: Currie, Elizabeth J.
Publisher: name: University of British Columbia
Year: 2009

description: The goal of this thesis is to explain the syntax and semantics of phrasal temporal adverbials in SqwXwu7mish, a Coast Salish language. This thesis proposes that SqwXwu7mish temporal adverbials function either as a main predicate or as a temporal argument corresponding to Reichenbach1s (1947) reference point. When these adverbials are the main predicate, they get an event time reading; when they are at the right edge of the sentence, they get a reference time reading. Thus, SqwXwu7mish adverbials support the claim by de Swart (to appear) that adverbials in focus structure get an event time reading, while adverbials in topic structure get a reference time reading. Furthermore, this thesis argues that adverbs in SqwXwu7mish are not adjuncts but arguments, based on their restricted distribution. Therefore, SqwXwu7mish adverbs do not simply modify the reference time, they denote is as a temporal argument, Topic Time (Klein 1994). This argument is located in the specifier of the spatiotemporal predicate Aspect within the framework proposed by Demirdache and Uribe- Etxebarria (to appear, a,b).
Current Star Formation in the Perseus Molecular Cloud: Constraints from Unbiased Submillimeter and Mid-Infrared Surveys
Creators: name: Jorgensen, Jes K.
name: Johnstone, Doug
name: Kirk, Helen
name: Myers, Philip C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a census of the population of deeply embedded young stellar objects (YSOs) in the Perseus molecular cloud complex based on a combination of Spitzer Space Telescope mid-IR data from the c2d legacy team and JCMT/SCUBA submillimeter maps from the COMPLETE team. The mid-IR sources detected at 24 micron and having [3.6]-[4.5] > 1 are located close to the center of the SCUBA cores, typically within 15" of their peaks. The narrowness of the spatial distribution of mid-IR sources around the peaks of the SCUBA cores suggests that no significant dispersal of the newly formed YSOs has occurred. This argues against the suggestion that motions of protostars regulate the time scales over which significant (Bondi-Hoyle) accretion can occur. The most deeply embedded YSOs are found in regions with high extinction, AV > 5, similar to the extinction threshold observed for the SCUBA cores. All the SCUBA cores with high concentrations have embedded YSOs, but not all cores with low concentrations are starless. An unbiased sample of 49 deeply embedded YSOs is constructed. Embedded YSOs are found in 40 of the 72 SCUBA cores with only three cores harboring multiple embedded YSOs within 15". The equal number of SCUBA cores with and without embedded YSOs suggests that the time scale for the evolution through the dense prestellar stages, where the cores are recognized in the submillimeter maps and have central densities of 5e4-1e5 cm^{-3}, is similar to the time scale for the embedded protostellar stages. The current star formation efficiency of cores is estimated to be approximately 10-15%. In contrast, the star formation efficiency averaged over the cloud life time and compared to the total cloud mass is only a few percent, reflecting also the efficiency in assembling cloud material into the dense cores forming stars.
description: Accepted for publication in ApJ (36 pages, 13 figures)
Transcription of "Coyote, Little Owl, and Two-Neck"
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-290811-10: Transcription of the story of Coyote, Little Owl, and the giant Two-Neck (file VP-221006-01), from 3:56 to 9:00.
Quantum information spreading in a disordered quantum walk
Creators: name: Nosrati, Farzam
name: Laneve, Alessandro
name: Shadfar, Mahshid Khazaei
name: Geraldi, Andrea
name: Mahdavipour, Kobra
name: Pegoraro, Federico
name: Mataloni, Paolo
name: Franco, Rosario Lo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We design a quantum probing protocol using Quantum Walks to investigate the Quantum Information spreading pattern. We employ Quantum Fisher Information, as a figure of merit, to quantify extractable information about an unknown parameter encoded within the Quantum Walk evolution. Although the approach is universal, we focus on the coherent static and dynamic disorder to investigate anomalous and classical transport as well as Anderson localization. Our results show that a Quantum Walk can be considered as a readout device of information about defects and perturbations occurring in complex networks, both classical and quantum.
description: 5+2 pages, 4+2 figures
New insights into the use of Ultra Long Period Cepheids as cosmological standard candles
Creators: name: Musella, Ilaria
name: Marconi, Marcella
name: Molinaro, Roberto
name: Fiorentino, Giuliana
name: Ripepi, Vincenzo
name: De Somma, Giulia
name: Moretti, Maria Ida
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Ultra Long Period Cepheids (ULPs) are pulsating variable stars with a period longer than 80d and have been hypothesized to be the extension of the Classical Cepheids (CCs) at higher masses and luminosities. If confirmed as standard candles, their intrinsic luminosities, 1 to 3 mag brighter than typical CCs, would allow to reach the Hubble flow and, in turn, to determine the Hubble constant, H_0, in one step, avoiding the uncertainties associated with the calibration of primary and secondary indicators. To investigate the accuracy of ULPs as cosmological standard candles, we first collect all the ULPs known in the literature. The resulting sample includes 63 objects with a very large metallicity spread with 12 + log([O/H]) ranging from 7.2 to 9.2 dex. The analysis of their properties in the VI period-Wesenheit plane and in the color-magnitude diagram (CMD) supports the hypothesis that the ULPs are the extension of CCs at longer periods, higher masses and luminosities, even if, additional accurate and homogeneous data and a devoted theoretical scenario are needed to get firm conclusions. Finally, the three M31 ULPs, 8-0326, 8-1498 and H42, are investigated in more detail. For 8-1498 and H42, we cannot confirm their nature as ULPs, due to the inconsistency between their position in the CMD and the measured periods. For 8-0326, the light curve model fitting technique applied to the available time-series data allows us to constrain its intrinsic stellar parameters, distance and reddening.
description: MNRAS - Accepted 2020 November 19. Received 2020 November 19; in original form 2020 July 15 - 9 pages and 8 figures
Resonant Compton Upscattering in Anomalous X-ray Pulsars
Creators: name: Baring, Matthew G.
name: Harding, Alice K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A significant new development in the study of Anomalous X-ray Pulsars (AXPs) has been the recent discovery by INTEGRAL and RXTE of flat, hard X-ray components in three AXPs. These non-thermal spectral components differ dramatically from the steeper quasi-power-law tails seen in the classic X-ray band in these sources. A prime candidate mechanism for generating this new component is resonant, magnetic Compton upscattering. This process is very efficient in the strong magnetic fields present in AXPs. Here an introductory exploration of an inner magnetospheric model for upscattering of surface thermal X-rays in AXPs is offered, preparing the way for an investigation of whether such resonant upscattering can explain the 20-150 keV spectra seen by INTEGRAL. Characteristically flat emission spectra produced by non-thermal electrons injected in the emission region are computed using collision integrals. A relativistic QED scattering cross section is employed so that Klein-Nishina reductions are influential in determining the photon spectra and fluxes. Spectral results depend strongly on the magnetospheric locale of the scattering and the observer's orientation, which couple directly to the angular distributions of photons sampled.
description: 9 pages, 3 embedded color figures, Accepted for publication in Astrophysics and Space Science, as part of the proceedings of the London meeting on "Isolated Neutron Stars," eds. S. Zane, R. Turolla & D. Page
Hinz, Rudolf / Hohmann, Christian / Lessing, Hanns (Hrsg.), Wolfram Kistner
Creators: name: Raiser, Konrad
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 2 (2009): Ökumenische Rundschau, Band 58, Heft 2
High-resolution mapping of flows in the solar interior: Fully consistent OLA inversion of helioseismic travel times
Creators: name: Jackiewicz, J.
name: Gizon, L.
name: Birch, A. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To recover the flow information encoded in travel-time data of time-distance helioseismology, accurate forward modeling and a robust inversion of the travel times are required. We accomplish this using three-dimensional finite-frequency travel-time sensitivity kernels for flows along with a 2+1 dimensional (2+1D) optimally localized averaging (OLA) inversion scheme. Travel times are measured by ridge filtering MDI full-disk Doppler data and the corresponding Born sensitivity kernels are computed for these particular travel times. We also utilize the full noise covariance properties of the travel times which allow us to accurately estimate the errors for all inversions. The whole procedure is thus fully consistent. Due to ridge filtering, the kernel functions separate in the horizontal and vertical directions, motivating our choice of a 2+1D inversion implementation. The inversion procedure also minimizes cross-talk effects among the three flow components, and the averaging kernels resulting from the inversion show very small amounts of cross-talk. We obtain three-dimensional maps of vector solar flows in the quiet Sun at spatial resolutions of 7-10 Mm using generally 24 h of data. For all of the flow maps we provide averaging kernels and the noise estimates. We present examples to test the inferred flows, such as a comparison with Doppler data, in which we find a correlation of 0.9. We also present results for quiet-Sun supergranular flows at different depths in the upper convection zone.
description: 34 pages, Accepted to Solar Physics
Structure/calcium affinity relationships of calmodulin site III : testing the acid-pair Hypothesis using calmodulin mutants
Creators: name: Wu, Xiaochun
Publisher: name: University of British Columbia
Year: 2009

description: The overall objective of this study was to test the Acid Pair Hypothesis in the calcium binding site III of calmodulin using calmodulin mutants. The Acid Pair Hypothesis was proposed to predict calcium binding affinity of a helix-loop-helix calcium binding motif based on the number and the location of acidic amino acid residues in chelating positions [Reid & Hodges, (1980) J. Theor. Biol. 84, 401-444]. This hypothesis states that a site will have a higher affinity for calcium if the anionic ligands are paired on the axial vertices of a near octahedron than if they are unpaired. The mutants were designed so that there were either three or four acidic chelating residues with acid-pairs on the X and/or Z axis. The F92W/D133E mutations were maintained in all mutants. Tryptophan was introduced as a fluorescent label into site III to monitor the calcium-induced structural transitions in the Cterminal domain. The D133E mutation in the +Z position of site IV was designed to inactivate this site with respect to calcium binding therefore eliminating the cooperative interactions between sites III and IV. The calcium affinity of site III increased when the number of the acidic chelating residues increased from three to four, when the number of acid-pairs increased from zero to one and further to two, and when the location of the acidpair was changed from the X axis to the Z axis. These results are consistent with the prediction of the Acid Pair Hypothesis. The fact that the D133E mutation drastically reduced calcium affinity of site IV indicates that the type of acidic residue in chelating positions also plays a role in dictating calcium affinity of the helix-loop-helix site. Conclusions drawn from earlier studies using synthetic models of a single helix-loop-helix calcium binding site describing the effect of the number and location of acidic residues on calcium affinity appear to be applicable to the multisite protein.
Letter to J.L. Logie from O.F.D. Norrington, June 26, 1929
Creators: name: Norrington, O.F.D.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to J.L. Logie, manager of the Okanagan Centre irrigation and Power Company, from O.F.D. Norrington, district engineer, regarding the by-pass from Vernon Creek into Duck Lake Creek to supply Duck Lake Creek lincensees with the water they are entitled to, dated June 26, 1929.
Planetesimal formation at the gas pressure bump following a migrating planet I. Basic characteristics of the new formation model
Creators: name: Shibaike, Yuhito
name: Alibert, Yann
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: To avoid known difficulties in planetesimal formation such as the drift or fragmentation barriers, many scenarios have been proposed. However, in these scenarios, planetesimals form in general only at some specific locations in protoplanetary discs. On the other hand, it is generally assumed in planet formation models and population synthesis models, that planetesimals are broadly distributed in the protoplanetary disc. Here we propose a new scenario in which planetesimals can form in broad areas of the discs. Planetesimals form at the gas pressure bump formed by a first-generation planet (e.g. formed by pebble accretion) and the formation region spreads inward in the disc as the planet migrates. We use a simple 1D Lagrangian particle model to calculate the radial distribution of pebbles in the gas disc perturbed by a migrating embedded planet. We consider that planetesimals form by streaming instability at the points where the pebble-to-gas density ratio on the mid-plane becomes larger than unity. We also study the effect of some key parameters like the ones of the gas disc model, the pebble mass flux, the migration speed of the planet, and the strength of turbulence. We find that planetesimals form in wide areas of the discs provided the flux of pebbles is typical and the turbulence is not too strong. The planetesimal surface density depends on the pebble mass flux and the migration speed of the planet. The total mass of the planetesimals and the orbital position of the formation area depend strongly on the pebble mass flux. We also find that the profile of the planetesimal surface density and its slope can be estimated by very simple equations. We show that our new scenario can explain the formation of planetesimals in broad areas. The simple estimates we provide for the planetesimal surface density profile can be used as initial conditions for population synthesis models.
description: 12 pages, 9 figures, 1 table, accepted for publication in Astronomy & Astrophysics
Transcription of a description of the fish dam at Xowung-q'it
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-290811-09: Transcription of a description of the fish dam at Xowung-q'it (file VP-230711-08), from the beginning of the file to the end of Hupa portion of the recording at 3:20.
An overview of heavy quark energy loss puzzle at RHIC
Creators: name: Djordjevic, Magdalena
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We give a theoretical overview of the heavy quark tomography puzzle posed by recent non-photonic single electron data from central Au+Au collisions at $\sqrt{s} = 200$ AGeV. We show that radiative energy loss mechanisms alone are not able to explain large single electron suppression data, as long as realistic parameter values are assumed. We argue that combined collisional and radiative pQCD approach can solve a substantial part of the non-photonic single electron puzzle.
description: 8 pages, 7 figures; To appear in the proceedings of International Conference on Strangeness in Quark Matter (SQM2006), Los Angeles, California, 26-31 Mar 2006
Interfaces in driven Ising models: shear enhances confinement
Creators: name: Smith, Thomas H. R.
name: Vasilyev, Oleg
name: Abraham, Douglas B.
name: Maciołek, Anna
name: Schmidt, Matthias
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use a phase-separated driven two-dimensional Ising lattice gas to study fluid interfaces exposed to shear flow parallel to the interface. The interface is stabilized by two parallel walls with opposing surface fields and a driving field parallel to the walls is applied which (i) either acts locally at the walls or (ii) varies linearly with distance across the strip. Using computer simulations with Kawasaki dynamics, we find that the system reaches a steady state in which the magnetisation profile is the same as that in equilibrium, but with a rescaled length implying a reduction of the interfacial width. An analogous effect was recently observed in sheared phase-separated colloidal dispersions. Pair correlation functions along the interface decay more rapidly with distance under drive than in equilibrium and for cases of weak drive can be rescaled to the equilibrium result.
description: 4 pages, 3 figures Text modified, added Fig. 3b. To appear in Phys. Rev. Letters
Transcription of Frog and Moon
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-290811-08: Transcription of the story of Frog and Moon (file VP-131007-07), from 00:26 to the end of the story.
Detection of Bidirectional System-Environment Information Exchanges
Creators: name: Budini, Adrián A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum memory effects can be related to a bidirectional exchange of information between an open system and its environment, which in turn modifies the state and dynamical behavior of the last one. Nevertheless, non-Markovianity can also be induced by environments whose dynamics is not affected during the system evolution, implying the absence of any physical information exchange. An unsolved open problem in the formulation of quantum memory measures is the apparent impossibility of discerning between both paradigmatic cases. Here, we present an operational scheme that, based on the outcomes of successive measurements processes performed over the system of interest, allows to distinguishing between both kinds of memory effects. The method accurately detects bidirectional information flows in diverse dissipative and dephasing non-Markovian open system dynamics.
description: 11 pages, 1 figure, Originally submitted to PRL
Black hole fluctuations and dynamics from back-reaction of Hawking radiation: Current work and further studies based on stochastic gravity
Creators: name: Hu, B. L.
name: Roura, Albert
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give a progress report of our research on spacetime fluctuations induced by quantum fields in an evaporating black hole and a black hole in quasi-equilibrium with its Hawking radiation. We note the main issues involved in these two classes of problems and outline the key steps for a systematic quantitative investigation. This report contains unpublished new ideas for further studies.
description: Invited talk given by BLH at the VII Asia-Pacific International Conference on Gravitation and Astrophysics, National Central University, Taiwan (November, 2005); to appear in the Proceedings edited by C. M. Chen, J. M. Nester and J. P. Hsu (World Scientific, Singapore, 2007) p. 236