cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical decoupling of a qubit with always-on control fields
Creators: name: Jones, N. Cody
name: Ladd, Thaddeus D.
name: Fong, Bryan H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider dynamical decoupling schemes in which the qubit is continuously manipulated by a control field at all times. Building on the theory of the Uhrig Dynamical Decoupling sequence (UDD) and its connections to Chebyshev polynomials, we derive a method of always-on control by expressing the UDD control field as a Fourier series. We then truncate this series and numerically optimize the series coefficients for decoupling, constructing the CAFE (Chebyshev and Fourier Expansion) sequence. This approach generates a bounded, continuous control field. We simulate the decoupling effectiveness of our sequence vs. a continuous version of UDD for a qubit coupled to fully-quantum and semi-classical dephasing baths and find comparable performance. We derive filter functions for continuous-control decoupling sequences, and we assess how robust such sequences are to noise on control fields. The methods we employ provide a variety of tools to analyze continuous-control dynamical decoupling sequences.
description: 22 pages, 10 figures
Edwarde Potter and his book
Creators: name: Ward, Sue
name: Smith, Kath
Publisher: name: Archaeology Data Service
Year: 2022

description: Archaeologia Aeliana, 50.5, 291-318
description: Over the course of 2018-20, a manuscript volume of medical, cookery, and miscellaneous other receipts dating from the seventeenth and eighteenth centuries, in the Society of Antiquaries of Newcastle upon Tyne's collection at Northumberland Archives, Woodhorn was digitised and transcribed by a group of volunteers. The digitised copies and the transcripts are now on the Society's website. This article places the volume in its historical contexts, considers the contents, and discusses what lessons might be learnt from it.
Optimization of high throughput grain elevator locations using decision support systems
Creators: name: Yates, Colleen Glen
Publisher: name: University of Calgary
Year: 1992
Subjects: subject: HD 9044 C33 S39 1992
subject: Grain elevators - Saskatchewan - Mathematical models
subject: Space in economics - Saskatchewan
subject: Grain - Saskatchewan - Storage

description: Bibliography: p. 87-92.
Excavations on the site of the Newcastle Pottery, Pottery Lane, Newcastle upon Tyne
Creators: name: Vance, Scott
Publisher: name: Archaeology Data Service
Year: 2022

description: Archaeologia Aeliana, 50.5, 319-393
description: An extensive programme of archaeological work was undertaken by Pre-Construct Archaeology Limited on land at the junction of Forth Banks and Pottery Lane, Newcastle upon Tyne in 2016. Until industrialisation, this area around the Skinner Burn watercourse remained essentially agricultural land to the west of the town walls. Like much of the region, however, the landscape was swiftly and dramatically altered throughout the nineteenth century by development of manufactories, ironworks, engineering works and the railway. Historic maps and documentary sources show that the site was the location of a pottery works from the latter part of the eighteenth century. No structural remains were encountered from the earliest phase of the works when the pottery was under the ownership of George Spearman & Co. (c. 1772-1790) and Addison, Falconer & Co. from c. 1790, although an assemblage of waste pottery dating from the late eighteenth century was recovered. The site yielded extensive structural remains of the latest incarnation of Newcastle Pottery, which historic maps and documents indicate was built between 1825 and 1827, with modifications occurring throughout the nineteenth century. Elements of eleven rooms (including slip house, kiln rooms, dipping house and workshops) were exposed as well as fragments of five bottle kilns, two slip kilns, a muffle kiln, two coal stores, a mixing ark and two slip tanks. The pottery was closed in 1893 and partially demolished by 1896, although some elements were retained and modified.
The Astrophysical Implications of Dust Formation During The Eruptions of Hot, Massive Stars
Creators: name: Kochanek, C. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Dust formation in the winds of hot stars is inextricably linked to the classic eruptive state of luminous blue variables (LBVs) because it requires very high mass loss rates, Mdot>10^(-2.5) Msun/year, for grains to grow and for the non-dust optical depth of the wind to shield the dust formation region from the true stellar photosphere. Thus, dusty shells around hot stars trace the history of "great" eruptions, and the statistics of such shells in the Galaxy indicate that these eruptions are likely the dominant mass loss mechanism for evolved, M>40Msun stars. Dust formation at such high Mdot also explains why very large grains (amax>1 micron) are frequently found in these shells, since amax \propto Mdot. The statistics of these shells (numbers, ages, masses, and grain properties such as amax) provide an archaeological record of this mass loss process. In particular, the velocities v, transient durations (where known) and ejected masses M of the Galactic shells and the supernova "impostors" proposed as their extragalactic counterparts are very different. While much of the difference is a selection effect created by shell lifetimes ~1/(v sqrt(M)), more complete Galactic and extragalactic surveys are needed to demonstrate that the two phenomena share a common origin given that their observed properties are essentially disjoint. If even small fractions (1%) of SNe show interactions with such dense shells of ejecta, as is currently believed, then the driving mechanism of the eruptions must be associated with the very final phases of stellar evolution, suggestive of some underlying nuclear burning instability.
description: 23 page, 3 figures, submitted to ApJ
Studying cybersickness and sensory conflict theory using a motion-coupled virtual reality system
Creators: name: Ng, Adrian Ka Tsun
name: Chan, Leith K. Y.
name: Lau, Henry Ying Kei
Publisher: name: HKU Data Repository
Year: 2021
Subjects: subject: 80111 Virtual Reality and Related Simulation
subject: FOS: Computer and information sciences

description: 6th International Conference on Visually Induced Motion Sensations, Toronto, ON, Canada.Conference Presentation
Abstract:Sensory conflict theory attempts to explain the immediate cause of visually induced motion sickness (VIMS) in virtual reality (VR) systems. The discomfort is based on the mismatch in visual–vestibular interaction. Traditional VR
experiences often involve visual stimuli without significant amount of physical motion to compensate the missing
vestibular stimuli. This study examined whether virtual visual scene coupled with motion sensation could reduce VIMS symptoms. A motion-coupled VR system with HTC Vive head-mounted display (HMD) was developed and used in the experimentation. The mechanical 3-DOF motion platform provides programmed physical motion which supplements the visual stimulus shown on the HMD. In addition to providing coherent visual and vestibular sensations, the study also tested the effect of an Earth-referenced visual scene that provides a fixed visual horizon. This is similar to a past study of using virtual horizon on a ship motion simulator. Anecdotal report suggested that visual Earth reference is important in establishing postural stability in a sea voyage and simulation, while instability of postural is usually correlated with cybersickness. Hence, a generated Earth-referenced visual scene could in theory reduce the effect of VIMS. In the experiment, participants experienced regular programmed visual and motion yaw rotation while viewing a virtual apartment (0.6Hz ±30°) for 3.5 minutes in each trial. Three conditions: purely visual, motion synchronized with visual, and motion with Earth-referenced visual scenes were tested on how motion and visual stimuli interact. Participants were asked to complete the simulator sickness questionnaire (SSQ) (every trial), the 11-points misery scale (every 60 seconds), and the 11-points joyfulness scale (every 60 seconds). These measurements help to create a cybersickness symptom profile and severity measurement for different conditions. Participants were also asked to stand on a balance board for 60 seconds to measure their centre of pressure after each trial. The result of the experiment could provide further insights into the relationships between the two senses and potential ways of relieving VIMS in VR systems.
Soerser Hochkirchen historic structure report
Creators: name: Simon, Corina Fraga
Publisher: name: Environmental Design
Year: 1992
Subjects: subject: NA 8204 S56 1992
subject: Farm buildings - Germany - Conservation and restoration
subject: Historic sites - Germany - Conservation and restoration
subject: Historic buildings - Germany - Conservation and restoration
subject: Germany - Antiquities - Collection and preservation

description: Bibliography: p. <92-94>.
Generation-recombination processes via acoustic phonons in a disorded graphene
Creators: name: Vasko, F. T.
name: Mitin, V. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Generation-recombination interband transitions via acoustic phonons are allowed in a disordered graphene because of violation of the energy-momentum conservation requirements. The generation-recombination processes are analyzed for the case of scattering by a short-range disorder and the deformation interaction of carriers with in-plane acoustic modes. The generation-recombination rates were calculated for the cases of intrinsic and heavily-doped graphene at room temperature. The transient evolution of nonequilibrium carriers is described by the exponential fit dependent on doping conditions and disorder level. The characteristic relaxation times are estimated to be about 150 - 400 ns for sample with the maximal sheet resistance ~5 kOhm. This rate is comparable with the generation-recombination processes induced by the thermal radiation.
description: 7 pages, 7 figs
First order $0/π$ quantum phase transition in the Kondo regime of a superconducting carbon nanotube quantum dot
Creators: name: Maurand, Romain
name: Meng, Tobias
name: Bonet, Edgar
name: Florens, Serge
name: Marty, Laëtitia
name: Wernsdorfer, Wolfgang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a carbon nanotube quantum dot embedded into a SQUID loop in order to investigate the competition of strong electron correlations with proximity effect. Depending whether local pairing or local magnetism prevails, a superconducting quantum dot will respectively exhibit positive or negative supercurrent, referred to as a 0 or $π$ Josephson junction. In the regime of strong Coulomb blockade, the 0 to $π$ transition is typically controlled by a change in the discrete charge state of the dot, from even to odd. In contrast, at larger tunneling amplitude the Kondo effect develops for an odd charge (magnetic) dot in the normal state, and quenches magnetism. In this situation, we find that a first order 0 to $π$ quantum phase transition can be triggered at fixed valence when superconductivity is brought in, due to the competition of the superconducting gap and the Kondo temperature. The SQUID geometry together with the tunability of our device allows the exploration of the associated phase diagram predicted by recent theories. We also report on the observation of anharmonic behavior of the current-phase relation in the transition regime, that we associate with the two different accessible superconducting states. Our results ultimately reveal the spin singlet nature of the Kondo ground state, which is the key process in allowing the stability of the 0-phase far from the mixed valence regime.
description: 10 pages, 6 figures in main text, 4 figures in appendix
General polygamy inequality of multi-party quantum entanglement
Creators: name: Kim, Jeong San
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using entanglement of assistance, we establish a general polygamy inequality of multi-party entanglement in arbitrary dimensional quantum systems. For multi-party closed quantum systems, we relate our result with the monogamy of entanglement to show that the entropy of entanglement is an universal entanglement measure that bounds both monogamy and polygamy of multi-party quantum entanglement.
description: 4 pages, 1 figure
Optimally solving a transportation problem using Voronoi diagrams
Creators: name: Geiß, Darius
name: Klein, Rolf
name: Penninger, Rainer
name: Rote, Günter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 51M20 (Primary) 90B80 (Secondary)

description: We consider the following variant of the Monge-Kantorovich transportation problem. Let S be a finite set of point sites in d dimensions. A bounded set C in d-dimensional space is to be distributed among the sites p in S such that (i) each p receives a subset C_p of prescribed volume, and (ii) the average distance of all points of C from their respective sites p is minimized. In our model, volume is quantified by some measure, and the distance between a site p and a point z is given by a function d_p(z). Under quite liberal technical assumptions on C and on the functions d_p we show that a solution of minimum total cost can be obtained by intersecting with C the Voronoi diagram of the sites in S, based on the functions d_p with suitable additive weights. Moreover, this optimum partition is unique up to sets of measure zero. Unlike the deep analytic methods of classical transportation theory, our proof is based directly on geometric arguments.
description: 15 pages, 2 figures. Submitted to the journal Computational Geometry, Theory and Applications, Special issue for the 28th European Workshop on Computational Geometry (EuroCG'12) in Assisi, March 2012
A Pilgrim's Garland: The Poetry & Song of the First Pilgrimage along Hadrian's Wall in 1849
Creators: name: Miket, Roger F
name: Welfare, Adam T
Publisher: name: Archaeology Data Service
Year: 2022

description: Archaeologia Aeliana, 50.5, 395-415
description: In the middle of the 19th century John Collingwood Bruce awakened a latent interest in Hadrian's Wall amongst a public that was growing in confidence and prosperity. These remnants of a former empire almost immediately became a source of local pride - a pride which was sometimes manifest in rather unusual ways and perhaps no more so than in the poetry and song that was stimulated by the First Pilgrimage.
The Balmer decrement of SDSS galaxies
Creators: name: Groves, Brent
name: Brinchmann, Jarle
name: Walcher, Carl Jakob
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: High resolution spectra are necessary to distinguish and correctly measure the Balmer emission lines due to the presence of strong metal and Balmer absorption features in the stellar continuum. This accurate measurement is necessary for use in emission line diagnostics, such as the Balmer decrement (i.e. Halpha/Hbeta), used to determine the attenuation of galaxies. Yet at high redshifts obtaining such spectra becomes costly. Balmer emission line equivalent widths are much easier to measure, requiring only low resolution spectra or even simple narrow band filters and therefore shorter observation times. However a correction for the stellar continuum is still needed for this equivalent width Balmer decrement. We present here a statistical analysis of the Sloan Digital Sky Survey Data Release 7 emission line galaxy sample, using the spectrally determined Balmer emission line fluxes and equivalent widths. Using the large numbers of galaxies available in the SDSS catalogue, we determined an equivalent width Balmer decrement including a statistically-based correction for the stellar continuum. Based on this formula, the attenuation of galaxies can now be obtained from low spectral resolution observations. In addition, this investigation also revealed an error in the Hbeta line fluxes, within the SDSS DR7 MPA/JHU catalogue, with the equivalent widths underestimated by average ~0.35A in the emission line galaxy sample. This error means that Balmer decrement determined attenuations are overestimated by a systematic 0.1 magnitudes in A_V, and future analyses of this sample need to include this correction.
description: 10 pages, accepted MNRAS
A Simple Method to Check the Reliability of Annual Sunspot Number in the Historical Period 1610-1847
Creators: name: Vaquero, J. M.
name: Trigo, R. M.
name: Gallego, M. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A simple method to detect inconsistencies in low annual sunspot numbers based on the relationship between these values and the annual number of active days is described. The analysis allowed for the detection of problems in the annual sunspot number series clustered in a few specific periods and unambiguous, namely: i) before Maunder minimum, ii) the year 1652 during the Maunder minimum, iii) the year 1741 in Solar Cycle -1, and iv) the so-called "lost" solar cycle in 1790s and subsequent onset of the Dalton Minimum.
description: 15 pages, 3 figures, to be published in Solar Physics
California sea lion sex- and age-specific morphometry.
Creators: name: Laake, Jeffrey L. (Jeffrey Lee)
name: Melin, Sharon Ruth
name: Greig, D. J.
name: Prager, K. C.
name: DeLong, Robert L.
name: Harris, J. D. (Jeffrey D.)
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center.
Year: 2016
Subjects: subject: California sea lion--Age determination--Pacific Coast (U.S.)
subject: California sea lion--Pacific Coast (U.S.)--Growth--Analysis.

description: Pinnipeds are primarily aged by marks (e.g., flipper tags, brands) applied to individuals when they are of known age (e.g., pups). Age determination is useful for researchers and managers for various reasons including estimating survival rates and assessing mortality of individuals that interact with fisheries. Age can be determined from unmarked animals by extracting a tooth and counting the number of dentine layers. For most populations, however, relatively few individuals are marked and it is often impractical to extract a tooth. Here we developed sex-specific length-age and weight-age curves for the California sea lion (Zalophus californianus). Additionally, we fit a power law curve for an allometric relationship between length and weight. We obtained length and weight measurements from known-age California sea lions captured at various haulout or rookery sites on islands off California and locations in Oregon and Washington. Gompertz and Von Bertalanffy growth models were compared after fitting them to length-at-age (cm) and weight-at-age (kg) data for male and female sea lions from 1 month to age 16 years and 19 years, respectively. The length-at-age data included initial capture and recapture records of female (n = 8,035) and male (n = 5,813) sea lions. The Von Bertalanffy growth curve was a better model than the Gompertz for length- and weight-at-age for both males and females. The weight-at-age relationship was much more variable than for length due to the smaller sample size and the vagaries of seasonal and annual weight loss and gain. However, a linear relationship for weight for ages 3.5-8 months is very reasonable based on the fitted growth curve.
Good therapists: influential life experiences and their contribution to therapeutic helpfulness
Creators: name: Wolgien, Cyril Stanley
Publisher: name: Social Work
Year: 1992
Subjects: subject: BF 637 C6 W64 1992
subject: Psychotherapy - Social aspects
subject: Life change events
subject: Counselor and client
subject: Counselors - Attitudes

description: Bibliography: p. 132-138.
High-Tc Superconductivity and Antiferromagnetism in Multilayered Copper Oxides - A New Paradigm of Superconducting Mechanism -
Creators: name: Mukuda, H.
name: Shimizu, S.
name: Iyo, A.
name: Kitaoka, Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High-temperature superconductivity (HTSC) in copper oxides emerges on a layered CuO2 plane when an antiferromagnetic Mott insulator is doped with mobile hole carriers. We review extensive studies of multilayered copper oxides by site-selective nuclear magnetic resonance (NMR), which have uncovered the intrinsic phase diagram of antiferromagnetism (AFM) and HTSC for a disorder-free CuO2 plane with hole carriers. We present our experimental findings such as the existence of the AFM metallic state in doped Mott insulators, the uniformly mixed phase of AFM and HTSC, and the emergence of d-wave SC with a maximum Tc just outside a critical carrier density, at which the AFM moment on a CuO2 plane disappears. These results can be accounted for by the Mott physics based on the t-J model. The superexchange interaction J_in among spins plays a vital role as a glue for Cooper pairs or mobile spin-singlet pairs, in contrast to the phonon-mediated attractive interaction among electrons established in the Bardeen-Cooper-Schrieffer (BCS) theory. We remark that the attractive interaction for raising the $T_c$ of HTSC up to temperatures as high as 160 K is the large J_in (~0.12 eV), which binds electrons of opposite spins to be on neighboring sites, and that there are no bosonic glues. It is the Coulomb repulsive interaction U(> 6 eV) among Cu-3d electrons that plays a central role in the physics behind high-Tc phenomena. A new paradigm of the SC mechanism opens to strongly correlated electron matter.
description: 20 pages, 25 figures, Special topics "Recent Developments in Superconductivity" in J. Phys. Soc. Jpn., Published December 26, 2011
Critical slowing down exponents in quenched disordered spin models for structural glasses: Random Orthogonal and related models
Creators: name: Caltagirone, Francesco
name: Ferrari, Ulisse
name: Leuzzi, Luca
name: Parisi, Giorgio
name: Rizzo, Tommaso
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An important prediction of Mode-Coupling-Theory (MCT) is the relationship between the power- law decay exponents in the β regime. In the original structural glass context this relationship follows from the MCT equations that are obtained making rather uncontrolled approximations and λ has to be treated like a tunable parameter. It is known that a certain class of mean-field spin-glass models is exactly described by MCT equations. In this context, the physical meaning of the so called parameter exponent λ has recently been unveiled, giving a method to compute it exactly in a static framework. In this paper we exploit this new technique to compute the critical slowing down exponents in a class of mean-field Ising spin-glass models including, as special cases, the Sherrington-Kirkpatrick model, the p-spin model and the Random Orthogonal model.
description: 7 pages, 3 figures
Deformation styles near the leading edge of the fold-and-thrust belt, Pincher Creek, Alberta
Creators: name: Hiebert, Stephen N. (Stephen Neil)
Publisher: name: University of Calgary
Year: 1992
Subjects: subject: QE 604 H54 1992a
subject: Additional Copy: QE 604 H54 1992
subject: Rock deformation - Alberta
subject: Geology, Structural - Alberta

description: Bibliography: p. 88-97.
description: A 150 km2 area of the Foothills Belt near Pincher Creek was mapped at 1 :20,000 scale. A series of structures previously mapped as vertical transverse faults are reinterpreted as a duplex that dips obliquely to regional trends. Two models are proposed for its structural evolution. Along the leading edge of the Livingstone Thrust sheet, a tear fault occurs along strike of a duplex; it is interpreted to be a steep lateral ramp from which displacement is transferred through the duplex. Another duplex is documented in the Wapiabi Formation. Local structure is affected by a deep southeast-plunging synform that developed east of a Palaeozoic duplex that dies out along strike. The Triangle Zone is less deformed than further north. Tertiary stratigraphy is thrust repeated outboard of the Triangle Zone. A duplex imaged on seismic sections occurs 16 km northeast of the Triangle Zone. Effects of shortening are observed at surface 65 km outboard of the Triangle Zone, along the Oldman River near Lethbridge. Three regional, restorable cross-sections are presented. Displacement occurs along low angle ramps and long flats, contributing to an overall shortening of 65%.
Methodological Challenges In Following Up Patients Of A Hospital Child Protection Team: Is There A Recruitment Bias?
Creators: name: Jud, Andreas (Autor/in)
name: Lips, Ulrich (Autor/in)
name: Landolt, Markus A. (Autor/in)
Publisher: name: Zenodo
Year: 2010

description: BACKGROUND: The aims of this study are to describe the methodological challenges in recruiting a follow-up sample of children referred to an interdisciplinary hospital child protection team (CPT) and to compare participating versus non-participating groups on several demographic variables and maltreatment characteristics.
METHODS: Of the 319 in- and outpatients referred to the CPT at University Children's Hospital Zurich from 2005-2006 a sample of 180 children was drawn to contact for a follow-up. The children and their parents were asked to participate in a face-to-face interview at the hospital; in 42 cases the children and parents consented to do so. Alternatively, the parents could take part in a telephone interview (n = 39). Non-participation resulted because no contact or adequate communication in German, French, or English could be established (n = 49) or because the parents or children refused to participate (n = 50).
RESULTS: Participants and non-participants did not differ significantly in mean child age at follow-up, gender, family status, place of residence, certainty and type of maltreatment, and type of perpetrator. However, the child's nationality had a significant impact: Percentages of foreign nationals were higher in the fully participating group (45%; n = 19) and the non-contactable group (53%; n = 26) and significantly lower in the refusal (26%; n = 10) and the telephone interview group (18%; n = 9). Although a high percentage of families had moved in the few years since the CPT intervention (32%; n = 57), the percentage of moves was not significantly higher in non-participants compared to participants.
CONCLUSIONS: Further research is needed to support these results in different national backgrounds and to test for biases in variables not included - especially socioeconomic status. This includes gathering more detailed information on non-participants, while respecting ethical boundaries. Overall, the fact that only child's nationality was unevenly distributed between participants and non-participants is encouraging.
description: + ID der Publikation: hslu_10877 + Art des Beitrages: Wissenschaftliche Medien + Sprache: Englisch + Letzte Aktualisierung: 2016-01-29 11:33:59
Microscopic Magnetic Nature of the Quasi-one-Dimensional Antiferromagnet BaCo2V2O8
Creators: name: Mansson, M.
name: Prsa, K.
name: Sugiyama, J.
name: Nozaki, H.
name: Amato, A.
name: Omura, K.
name: Kimura, S.
name: Hagiwara, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The title compound belongs to a wide group of quasi-one-dimensional (Q1D) antiferromagnets (AF) and its Co2+ ions form Q1D screw-chains along the c-axis. We here present the first investigation of the microscopic magnetic nature of a single crystalline BaCo2V2O8 sample using μ+SR. Our data reveal the presence of several clear muon frequencies below TN indicating the onset of a long-range order. Above 5 K, the μ+SR spectra is well fitted to a simple power-exponential relaxing function. The temperature dependence of the relaxation-rate (λ) as well as the power (n) display a clear anomaly around T = 44 K, indicating the onset of short-range 1D correlations.
description: Submitted to Physics Procedia (muSR2011 conference)
LHC Optics Determination with Proton Tracks Measured in the Roman Pot Detectors of the TOTEM Experiment
Creators: name: Nemes, F.
name: Niewiadomski, H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The TOTEM experiment at the LHC is equipped with near beam movable devices -- called Roman Pots (RP) -- which detect protons scattered at the interaction point (IP5) arriving to the detectors through the magnet lattice of the LHC. Proton kinematics at IP5 is reconstructed from positions and angles measured by the RP detectors, on the basis of the transport matrix between IP5 and the RP locations. The precision of optics determination is therefore of the key importance for the experiment. TOTEM developed a novel method of machine optics determination making use of angle-position distributions of elastically scattered protons observed in the RP detectors together with the data retrieved from several machine databases. The method has been successfully applied to the data samples registered in 2010 and 2011. The studies show that the transport matrix could be estimated with a precision better than 1%.
description: 3 pages, 2 figures
Post-project analysis of visual impact assessment: implications for environmental assessment and visual resource management
Creators: name: Dakin, Susan Lyn
Publisher: name: Environmental Design
Year: 1992
Subjects: subject: GF 90 D35 1992
subject: Landscape assessment
subject: Geographical perception
subject: Logging - Alberta - Cox Hill - Environmental aspects
subject: Logging - British Columbia - Glacier National Park - Environmental aspects

description: Bibliography: p. 152-165.
The environmental effects in the origin of angular momenta of galaxies
Creators: name: Godlowski, Wlodzimierz
name: Panko, Elena
name: Flin, Piotr
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the galaxy alignment in the sample of very rich Abell clusters located in and outside superclusters. The statistically significant difference among investigated samples exists. We found that in contrast to whole sample of cluster, where alignment increase with the cluster richness, the cluster belonging to the superclusters does not show this effect. Moreover, the alignment decreased with the supercluster richness. One should note however that orientations of galaxies in analyzed clusters are not random, both in the case when we analyzed whole sample of the clusters and only clusters belonging to the superclusters. The observed trend, dependence of galaxy alignment on both cluster location and supercluster richness clearly supports the influence of environmental effects to the origin of galaxy angular momenta.
description: Acta Physica Polonica B (accepted,)references corrected
What determines the fraction of elliptical galaxies in clusters?
Creators: name: De Lucia, Gabriella
name: Fontanot, Fabio
name: Wilman, Dave
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the correlation between the morphological mix of cluster galaxies and the assembly history of the parent cluster by taking advantage of two independently developed semi-analytic models for galaxy formation and evolution. In our models, both the number of cluster members and that of elliptical members increase as a function of cluster mass, in such a way that the resulting elliptical fractions are approximately independent of cluster mass. The population of cluster ellipticals exhibit a marked bimodal distribution as a function of galaxy stellar mass, with a dip at masses $\sim 10^{10}\,{\rm M}_{\odot}$. In the framework of our models, this bimodality originates from the combination of a strongly decreasing number of galaxies with increasing stellar mass, and a correspondingly increasing probability of experiencing major mergers. We show that the correlation between the measured elliptical fraction and the assembly history of the parent cluster is weak, and that it becomes stronger in models that adopt longer galaxy merger times. We argue that this results from the combined effect of a decreasing bulge production due to a reduced number of mergers, and an increasing survival probability of pre-existing ellipticals, with the latter process being more important than the former.
description: 8 pages, 3 figures, accepted for publication in MNRAS
A Comparison of standardized test scores between grade six students in the St. John School of Fine Arts and grade six students in the Calgary Catholic general elementary schools
Creators: name: Derbecker, Suzanne M.
Publisher: name: University of Calgary
Year: 1992
Subjects: subject: LB 1576 D47 1992
subject: Language Arts (Elementary)
subject: School children - Testing
subject: Academic achievement - Testing
subject: Performance in children

description: Bibliography: p. 84-93.
Real-time face swapping as a tool for understanding infant self-recognition
Creators: name: Nguyen, Sao Mai
name: Ogino, Masaki
name: Asada, Minoru
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: To study the preference of infants for contingency of movements and familiarity of faces during self-recognition task, we built, as an accurate and instantaneous imitator, a real-time face- swapper for videos. We present a non-constraint face-swapper based on 3D visual tracking that achieves real-time performance through parallel computing. Our imitator system is par- ticularly suited for experiments involving children with Autistic Spectrum Disorder who are often strongly disturbed by the constraints of other methods.
Galaxy Alignments in Very X-ray Luminous Clusters at z>0.5
Creators: name: Hung, Chao-Ling
name: Ebeling, Harald
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a search for galaxy alignments in 12 galaxy clusters at z>0.5, a statistically complete subset of the very X-ray luminous clusters from the MAssive Cluster Survey (MACS). Using high-quality images taken with the Hubble Space Telescope (HST) that render measurement errors negligible, we find no radial galaxy alignments within 500 kpc of the cluster centres for a sample of 545 spectroscopically confirmed cluster members. A mild, but statistically insignificant trend favouring radial alignments is observed within a radius of 200 kpc and traced to galaxies on the cluster red sequence. Our results for massive clusters at z>0.5 are in stark contrast to the findings of previous studies which find highly significant radial alignments of galaxies in nearby clusters at z~0.1 out to at least half the virial radius using imaging data from the SDSS. The discrepancy becomes even more startling if radial alignment becomes more prevalent at decreasing clustercentric distance, as suggested by both our and previous work. We investigate and discuss potential causes for the disparity between our findings based on HST images of clusters at z>0.5 and those obtained using groundbased images of systems at z~0.1. We conclude that the most likely explanation is either dramatic evolution with redshift (in the sense that radial alignments are less pronounced in dynamically younger systems) or the presence of systematic biases in the analysis of SDSS imaging data that cause at least partly spurious alignment signals.
description: 10 pages, 11 figures, and 1 table. Accepted for publication in MNRAS
Group-IV graphene- and graphane-like nanosheets
Creators: name: Garcia, Joelson Cott
name: de Lima, Denille B.
name: Assali, Lucy V. C.
name: Justo, João F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed a first principles investigation on the structural and electronic properties of group-IV (C, SiC, Si, Ge, and Sn) graphene-like sheets in flat and buckled configurations and the respective hydrogenated or fluorinated graphane-like ones. The analysis on the energetics, associated with the formation of those structures, showed that fluorinated graphane-like sheets are very stable, and should be easily synthesized in laboratory. We also studied the changes on the properties of the graphene-like sheets, as result of hydrogenation or fluorination. The interatomic distances in those graphane-like sheets are consistent with the respective crystalline ones, a property that may facilitate integration of those sheets within three-dimensional nanodevices.
Solubility Characteristics of Acetaminophen and Phenacetin in Binary Mixtures of Aqueous Organic Solvents: Experimental and Deep Machine Learning Screening of Green Dissolution Media
Creators: name: Przybyłek, Maciej
Publisher: name: figshare
Year: 2022
Subjects: Physical chemistry not elsewhere classified
Solution chemistry
Chemical thermodynamics and energetics
Theoretical and computational chemistry not elsewhere classified
Theoretical quantum chemistry
Computational chemistry
Chemical engineering design
Chemical engineering not elsewhere classified

description: The solubility of active pharmaceutical ingredients is a mandatory physicochemical characteristic in pharmaceutical practice. However, the number of potential solvents and their mixtures prevents direct measurements of all possible combinations for finding environmentally friendly, operational and cost-effective solubilizers. That is why support from theoretical screening seems to be valuable. Here, a collection of acetaminophen and phenacetin solubility data in neat and binary solvent mixtures was used for the development of a nonlinear deep machine learning model using new intuitive molecular descriptors derived from COSMO-RS computations. The literature dataset was augmented with results of new measurements in aqueous binary mixtures of 4-formylmorpholine, DMSO and DMF. The solubility values back-computed with the developed ensemble of neural networks are in perfect agreement with the experimental data, which enables the extensive screening of many combinations of solvents not studied experimentally within the applicability domain of the trained model. The final predictions were presented not only in the form of the set of optimal hyperparameters but also in a more intuitive way by the set of parameters of the Jouyban–Acree equation often used in the co-solvency domain. This new and effective approach is easily extendible to other systems, enabling the fast and reliable selection of candidates for new solvents and directing the experimental solubility screening of active pharmaceutical ingredients.
On the diversity and functioning of tropical forest landscapes
Creators: name: Bongalov, Boris
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: remote sensing
hyperspectral imagery
lidar
beta diversity
borneo
sepilok
danum
neutral theory
biodiversity
stochastic modeling

description: Tropical rainforests perform a range of ecosystem services and harbour extraordinary plant diversity. How these ecosystems function and what enables so many species to co-exist in them are questions that have traditionally been tackled using field surveys of limited spatial extent. This thesis combines field data, emerging remote sensing approaches, stochastic modelling and powerful geospatial analysis tools to explore long standing ecological questions in a new context. A field survey of the leaf functional traits of lianas and trees was performed in the Sepilok Forest Reserve in Borneo, which contains three distinct forest types. The two growth forms are found to converge to similar trait values under increasing nutrient limitation, which is discussed in relation to the biodiversity patterns previously reported in Sepilok. An airborne hyperspectral survey of the reserve enabled mapping of β diversity patterns of a landscape of valleys and ridges, revealing that the three forest types exhibit divergent patterns of spatial autocorrelation in community composition. When those β diversity maps were combined with detailed descriptions of the underlying environment obtained via airborne laser scanning and simulations based on Neutral Theory, the contribution of environmental niches and stochastic dispersal in forming β diversity patterns was successfully partitioned. The utility of field and airborne spectroscopy to map foliar traits is also explored in this thesis. Finally, an allometric relationship between liana stem basal area, biomass and total leaf area is presented, with the potential to enable remote biomass estimation of liana loads from airborne surveys. This thesis advances understanding on how theorised mechanisms interact to maintain tropical diversity while demonstrating the utility of remote earth observation approaches to offer new insights into long standing ecological questions.
title: Hydrographic measurements collected aboard the UNOLS Ship R/V Oceanus, Leg 1, 23 March - 4 April 2010 & Leg 2, 6 April - 17 April 2010
title: Western Boundary Time Series cruise OC459-1 & OC459-2 (AB1003)
titleType: Subtitle
Creators: name: Hooper, James A.
name: Baringer, Molly O'Neil
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research Laboratories, Atlantic Oceanographic and Meteorological Laboratory.
Year: 2015
Subjects: subject: Oceanography--Florida--Atlantic Coast--Measurement.
subject: Hydrography--Florida--Atlantic Coast--Measurement.

description: This report summarizes the March 23 - April 17, 2010 cruise on the UNOLS ship R/V Oceanus involving full-water-column CTD and lowered ADCP profiles, along with shipboard ADCP profiles, conducted within the Florida Straits and east of Abaco Island, Bahamas. At each station, a package consisting of a Seabird Electronics Model 9/11+ CTD O2 system, two RDI 300 kHz Workhorse Lowered Acoustic Doppler Current Profilers, and 23 10-liter Niskin bottles, was to be lowered to the bottom. This report includes a description of the calibrations procedures and profiles of pressure, salinity (conductivity), temperature, and dissolved oxygen concentration. Water samples were also collected at various depths and analyzed for salinity and oxygen concentration to aid with CTD calibration. A total of 63 casts were completed, 61 CTD-O2/LADCP stations were occupied and 2 where no CTD data was collected that tested the acoustic releases. PIES/CPIES data were downloaded from 4 sites. There was a successful recovery and deployment of a PIES at the B site, a failed recovery at site C and failed telemetry and site D. Mooring operations include recovery of 13 moorings and deployment of 14 moorings with a mixture of current meters, Acoustic Doppler Current Profilers (ADCPs), and temperature/salinity recorders, and bottom landers instrumented with bottom pressure recorders. As part of NOAA contribution to the Global Surface Drifter Program, 12 surface drifters were deployed.
Stereo pairs in Astrophysics
Creators: name: Vogt, Frédéric
name: Wagner, Alexander Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Graphics (cs.GR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Stereoscopic visualization is seldom used in Astrophysical publications and presentations compared to other scientific fields, e.g., Biochemistry, where it has been recognized as a valuable tool for decades. We put forth the view that stereo pairs can be a useful tool for the Astrophysics community in communicating a truer representation of astrophysical data. Here, we review the main theoretical aspects of stereoscopy, and present a tutorial to easily create stereo pairs using Python. We then describe how stereo pairs provide a way to incorporate 3D data in 2D publications of standard journals. We illustrate the use of stereo pairs with one conceptual and two Astrophysical science examples: an integral field spectroscopy study of a supernova remnant, and numerical simulations of a relativistic AGN jet. We also use these examples to make the case that stereo pairs are not merely an ostentatious way to present data, but an enhancement in the communication of scientific results in publications because they provide the reader with a realistic view of multi-dimensional data, be it of observational or theoretical nature. In recognition of the ongoing 3D expansion in the commercial sector, we advocate an increased use of stereo pairs in Astrophysics publications and presentations as a first step towards new interactive and multi-dimensional publication methods.
description: Accepted for Publication in Astrophysics & Space Science, 16pp, 10 figures
Land east of the Nursery, Medburn, Northumberland: Excavation Report
Creators: name: Dougherty, Eddie
name: Robinson, Gav
Publisher: name: Archaeology Data Service
Year: 2022

description: Archaeologia Aeliana, 50.5, 1-9
description: The truncated remains of early prehistoric pits, an unenclosed roundhouse and an early field system were recorded during archaeological investigations at land east of 'The Nursery', Medburn in 2018. Radiocarbon dates indicated one of the pits was Early Bronze Age in date and the roundhouse was probably in use during the Middle or Late Iron Age. The early prehistoric pits and the Iron Age structure, as well as the limited artefactual and ecofactal material they contained, represent a small but significant addition to the regional corpus of sites for these periods.
Evidences of merging in the Seyfert galaxy NGC 3393 revealed by modelling the spectra
Creators: name: Contini, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The discovery of two active black holes in the Seyfert galaxy NGC 3393, separated by about 490 light years, revealed a merging event. This led us to look for other evidences of galaxy collision and merging through the analysis of the observed spectra in different frequency ranges. We found preshock densities higher by a factor of about 10 in the NGC 3393 NLR than in other AGN and patches of ionized matter beyond the observed NLR bulk. They can be explained by compression and heating of the gas downstream of shock waves created by collision. Metallicity in terms of the O/H relative abundance, is about 0.78 solar. Mg/H depletion by a factor of about 3 compared with solar cannot be explained by Mg trapping into dust grains, due to rather high shock velocities. The low O/H and Mg/H abundances indicate mixing with external matter during collision. Twice solar N/H is predicted by modelling the spectra of high shock velocity clouds reached by a Ts =8.6 10^4 K black-body flux. This suggests that Wolf-Rayet stars could be created by galaxy collision in the central region.
description: 11 pages, 3 figures, 3 tables, accepted for publication in MNRAS