cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The evolution of galaxy clustering since z = 3 using the UKIDSS Ultra Deep Survey: the divergence of passive and star-forming galaxies
Creators: name: Hartley, William
name: Almaini, Omar
name: Cirasuolo, Michele
name: Foucaud, Sebastien
name: Simpson, Chris
name: Conselice, Christopher
name: Smail, Ian
name: McLure, Ross
name: Dunlop, Jim
name: Chuter, Rob
name: Maddox, Steve
name: Lane, Kyle
name: Bradshaw, Emma
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use the UKIDSS Ultra-Deep Survey to trace the evolution of galaxy clustering to z = 3. Using photometric redshifts derived from data covering the wavelength range 0.3 - 4.5 um we examine this clustering as a function of absolute K-band luminosity, colour and star-formation rate. Comparing the deprojected clustering amplitudes, we find that red galaxies are more strongly clustered than blue galaxies out to at least z = 1.5, irrespective of rest-frame K-band luminosity. We then construct passive and star-forming samples based on stellar age, colour and star-formation histories calculated from the best fitting templates. The clustering strength of star-forming galaxies declines steadily from r_0 ~ 7 h^-1 Mpc at z ~ 2 to r_0 ~ 3 h^-1 Mpc at z ~ 0, while passive galaxies have clustering strengths up to a factor of two higher. Within the passive and star-forming subsamples, however, we find very little dependence of galaxy clustering on K-band luminosity. Galaxy `passivity' appears to be the strongest indicator of clustering strength. We compare these clustering measurements with those predicted for dark matter halos and conclude that passive galaxies typically reside in halos of mass M > 10^13 M_sun while luminous star-forming galaxies occupy halos an order of magnitude less massive over the range 0.5 < z < 1.5. The decline in the clustering strength of star-forming galaxies with decreasing redshift indicates a decline in the hosting halo mass for galaxies of a given luminosity. We find evidence for convergence of clustering in star-forming and passive galaxies around z ~ 2, which is consistent with this being the epoch at which the red sequence of galaxies becomes distinct.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society. 11 pages containing 8 Figures and 1 table. The source contains additional results tables
Spectroscopic confirmation of UV-bright white dwarfs from the Sandage Two-Color Survey of the Galactic Plane
Creators: name: Lepine, Sebastien
name: Bergeron, P.
name: Lanning, Howard H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present spectroscopic observations confirming the identification of hot white dwarfs among UV-bright sources from the Sandage Two-color Survey of the Galactic plane and listed in the Lanning (Lan) catalog of such sources. A subsample of 213 UV bright Lan sources have been identified as candidate white dwarfs based on the detection of a significant proper motion. Spectroscopic observations of 46 candidates with the KPNO 2.1m telescope confirm 30 sources to be hydrogen white dwarfs with subtypes in the DA1-DA6 range, and with one of the stars (Lan 161) having an unresolved M dwarf as a companion. Five more sources are confirmed to be helium white dwarfs, with subtypes from DB3 to DB6. One source (Lan 364) is identified as a DZ 3 white dwarf, with strong lines of calcium. Three more stars are found to have featureless spectra (to within detection limits), and are thus classified as DC white dwarfs. In addition, three sources are found to be hot subdwarfs: Lan 20 and Lan 480 are classified as sdOB, and Lan 432 is classified sdB. The remaining four objects are found to be field F star interlopers. Physical parameters of the DA and DB white dwarfs are derived from model fits.
description: To appear in the Astronomical Journal
Optical properties of low-dimensional semiconductor systems fabricated by cleaved edge overgrowth
Creators: name: Schuster, Robert
name: Hajak, H.
name: Reinwald, Matthias
name: Wegscheider, Werner
name: Schedelbeck, Gert
name: Sedlmaier, S.
name: Stopa, M.
name: Birner, S.
name: Vogl, P.
name: Bauer, J.
name: Schuh, Dieter
name: Bichler, Max
name: Abstreiter, Gerhard
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik
subject: 73.20.At; 73.21.Hb; 73.21.La; 78.45.+h; 78.67.Hc; 78.67.Lt

description: An overview of the cleaved edge overgrowth technique, which allows the realization of atomically precise quantum structures, is presented. We explain the origin of the formation of quantum wires, which were grown with this molecular beam epitaxy method. The emission of quantum wire lasers based on these intrinsic T-shaped structures shows a strong dependence on magnetic fields. Only weak band gap renormalization is observed for modulation doped wires when the electron density is varied. The introduction of strained layers results in an enhancement of the confinement energy, which is necessary to fully exploit the one-dimensional character of the examined quantum wires. Single as well as coupled quantum dots, and quantum dot superlattices have been successfully grown and are identified using micro-photoluminescence spectroscopy. By combining self-assembling of quantum dots due to Stranski-Krastanov growth with the cleaved edge overgrowth method we succeeded in fabricating arrays of long-range ordered InAs quantum dots. Both atomic force microscopy and micro-photoluminescence measurements performed on such samples show the ability to control size, position, and ordering of the quantum dots.
Local electronic structure of Fe$^{2+}$ impurities in MgO thin films: Temperature-dependent soft x-ray absorption spectroscopy study
Creators: name: Haupricht, T.
name: Sutarto, R.
name: Haverkort, M. W.
name: Ott, H.
name: Tanaka, A.
name: Hsieh, H. H.
name: Lin, H. -J.
name: Chen, C. T.
name: Hu, Z.
name: Tjeng, L. H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on the local electronic structure of Fe impurities in MgO thin films. Using soft x-ray absorption spectroscopy (XAS) we verified that the Fe impurities are all in the 2+ valence state. The fine details in the line shape of the Fe $L_{2,3}$ edges provide direct evidence for the presence of a dynamical Jahn-Teller distortion. We are able to determine the magnitude of the effective $D_{4h}$ crystal field energies. We also observed a strong temperature dependence in the spectra which we can attribute to the thermal population of low-lying excited states that are present due to the spin-orbit coupling in the Fe 3d. Using this Fe$^{2+}$ impurity system as an example, we show that an accurate measurement of the orbital moment in Fe$_3$O$_4$ will provide a direct estimate for the effective local low-symmetry crystal fields on the Fe$^{2+}$ sites, important for the theoretical modeling of the formation of orbital ordering.
High-Fidelity DNA Sensing by Protein Binding Fluctuations
Creators: name: Tlusty, Tsvi
name: Bar-Ziv, Roy
name: Libchaber, Albert
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: One of the major functions of RecA protein in the cell is to bind single-stranded DNA exposed upon damage, thereby triggering the SOS repair response.We present fluorescence anisotropy measurements at the binding onset, showing enhanced DNA length discrimination induced by adenosine triphosphate consumption. Our model explains the observed DNA length sensing as an outcome of out-of equilibrium binding fluctuations, reminiscent of microtubule dynamic instability. The cascade architecture of the binding fluctuations is a generalization of the kinetic proofreading mechanism. Enhancement of precision by an irreversible multistage pathway is a possible design principle in the noisy biological environment.
description: PACS numbers: 87.15.Ya, 87.14.Ee, 87.14.Gg http://www.ncbi.nlm.nih.gov/pubmed/15697950
Low-profile microstrip end-fire antennas based on metamaterial substrates
Creators: name: Ahmadi, Masoud
Publisher: name: University of British Columbia
Year: 2018

description: The development of microstrip technology has introduced a range of revolutionary antenna designs that provide a low-cost, easily integrable antenna in a low-profile, planar form factor. Typical microstrip antennas have either a broadside or an omnidirectional radiation pattern. This study investigates the design of a low-profile end-fire microstrip antenna based on the use of metamaterial substrates. A 900 MHz dipole antenna is placed above two types of high impedance surfaces (HIS): a single-layer HIS and a double-layer HIS. The patches forming the HIS were designed to produce a radiation pattern with main lobes as close to 90° from normal as possible. Our simulation results show that a single-layer HIS design with thickness of 0.06λ₀ and length and width of 1.1λ₀ by 1.1λ₀ has a main lobe at 56° from normal and an efficiency of 28%. A double-layer HIS design with a thickness of 0.03λ₀, a length of 1.1λ₀, and a width of 2.15λ₀ produces a main lobe at 40° from normal with an efficiency of 50%. In order to produce a radiation pattern closer to end-fire, we propose a compact microstrip patch antenna that uses a negative permittivity substrate to achieve an end-fire radiation pattern. The antenna is designed to operate at X-band frequencies and has a footprint of 42 mm². Loading a narrow patch with a negative permittivity substrate introduces an effective inductance that resonates with the strong fringing capacitance of the patch. The electric field is vertically polarized and nearly uniform across the patch with negative permittivity ensuring a uniform phase distribution. This introduces nulls in the transverse direction that improve the directivity of the antenna. The negative permittivity substrate is implemented using a thin-wire medium with four vias spread across the patch. The fabricated antenna is matched using a quarter-wavelength transformer to 50 Ω at 10.8 GHz with a peak return loss of 30 dB and a peak directivity of 11.3 dBi. The operating frequency appears between two parallel resonances and has a 10-dB impedance bandwidth of 4%. The efficiency is simulated to be approximately 85%.
Subnanosecond spectral diffusion of a single quantum dot in a nanowire
Creators: name: Sallen, G.
name: Tribu, A.
name: Aichele, T.
name: André, R.
name: Besombes, L.
name: Bougerol, C.
name: Richard, M.
name: Tatarenko, S.
name: Kheng, K.
name: Poizat, J. -Ph.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied spectral diffusion of the photoluminescence of a single CdSe quantum dot inserted in a ZnSe nanowire. We have measured the characteristic diffusion time as a function of pumping power and temperature using a recently developed technique [G. Sallen et al, Nature Photon. \textbf{4}, 696 (2010)] that offers subnanosecond resolution. These data are consistent with a model where only a \emph{single} carrier wanders around in traps located in the vicinity of the quantum dot.
A pseudo-receiver domain in Atg32 is required for mitophagy
Creators: name: Xia, Xue
name: Katzenell, Sarah
name: Reinhart, Erin F.
name: Bauer, Katherine M.
name: Pellegrini, Maria
name: Ragusa, Michael J.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Virology

description: Mitochondria are targeted for degradation by mitophagy, a selective form of autophagy. In Saccharomyces cerevisiae, mitophagy is dependent on the autophagy receptor, Atg32, an outer mitochondrial membrane protein. Once activated, Atg32 recruits the autophagy machinery to mitochondria, facilitating mitochondrial capture in phagophores, the precursors to autophagosomes. However, the mechanism of Atg32 activation remains poorly understood. To investigate this crucial step in mitophagy regulation, we examined the structure of Atg32. We have identified a structured domain in Atg32 that is essential for the initiation of mitophagy, as it is required for the proteolysis of the C-terminal domain of Atg32 and the subsequent recruitment of Atg11. The solution structure of this domain was determined by NMR spectroscopy, revealing that Atg32 contains a previously undescribed pseudo-receiver (PsR) domain. Our data suggests that the PsR domain of Atg32 regulates Atg32 activation and the initiation of mitophagy. Abbreviations:AIM: Atg8-interacting motif; GFP: green fluorescent protein; LIR: LC3-interacting region; NMR: nuclear magnetic resonance; NOESY: nuclear Overhauser effect spectroscopy; PDB: protein data bank; PsR: pseudo-receiver; RMSD: root-mean-square deviation
Noncommutativity relations in type IIB theory and their supersymmetry
Creators: name: Nikolic, B.
name: Sazdovic, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present paper we investigate noncommutativity of $D9$ and $D5$-brane world-volumes embedded in space-time of type IIB superstring theory. Boundary conditions, which preserve half of the initial supersymmetry, are treated as canonical constraints. Solving the constraints we obtain original coordinates in terms of the effective coordinates and momenta. Presence of momenta induces noncommutativity of string endpoints. We show that noncommutativity relations are connected by N=1 supersymmetry transformations and noncommutativity parameters are components of N=1 supermultiplet.
Aliant Telecom/Bell Canada/Saskatchewan Telecommunications/Societe en Commandite/Telebec/Telus Communications Poll: July 2005
Creators: name: Aliant Telecom
name: Canada, Bell
name: Saskatchewan Telecommunications
name: Societe En Commandite
name: Telebec
name: Telus Communications
Publisher: name: Roper Center for Public Opinion Research
Year: 2005

Abstract
Activated Transport in the Separate Layers that Form the νT=1 Exciton Condensate
Creators: name: Wiersma, R. D.
name: Lok, J. G. S.
name: Kraus, Stefan
name: Dietsche, W.
name: Klitzing, Klaus von
name: Schuh, Dieter
name: Bichler, Max
name: Tranitz, H.-P.
name: Wegscheider, Werner
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik
subject: 73.43.–f, 71.35.Lk, 75.47.–m

description: We observe the total filling factor νT=1 quantum Hall state in a bilayer two-dimensional electron system with virtually no tunneling. We find thermally activated transport in the balanced system with a monotonic increase of the activation energy with decreasing d/ℓB below 1.65. In the imbalanced system we find activated transport in each of the layers separately, yet the activation energies show a striking asymmetry around the balance point, implying a different excitation spectrum for the separate layers forming the condensed state.
Métodos de ordem de convergência maior para resolução de problemas de cálculo estrutural
Creators: name: Souza, Luiz Antonio Farani de
name: Castelani, Emerson Vitor
name: Shirabayashi, Wesley Vagner Inês
Publisher: name: Zenodo
Year: 2019

description: Propostas de métodos numéricos aplicados ao cálculo de estruturas como treliças.
Patrimonio outdoor: linee guida per un territtorio inclusivo
Creators: name: Pucciarelli, Marta
name: Carmine, Veronica
Publisher: name: Scuola universitaria professionale della Svizzera italiana, Dipartimento ambiente costruzioni e design, Istituto design
Year: 2024
Subjects: Patrimonio culturale
Patrimonio outdoor
Territtorio inclusivo
Co-progettazione
Design partecipativo
Linee guida
Cultura inclusiva
Accessibilità culturale
Pratiche inclusive
Inclusione culturale
Accessibilità patrimonio
progetto PATI

description: Patrimonio outdoor: linee guida per un territorio inclusivo

Questo documento presenta le linee guida per promuovere un territorio inclusivo e accessibile attraverso la valorizzazione del patrimonio culturale outdoor. Le linee guida sono il risultato pratico del progetto "Patrimonio Accessibile Territorio Inclusivo" (PATI), sviluppato dall'Istituto Design della Scuola universitaria professionale della Svizzera italiana (SUPSI). Il progetto PATI, attivo dal 2021 al 2024, ha condotto oltre 10 attività inclusive e accessibili, coinvolgendo diverse istituzioni culturali e sociali. Il modello proposto si basa su un approccio partecipativo e inclusivo, che coinvolge enti pubblici, musei, e comunità locali nella co-progettazione di iniziative accessibili. Le fasi operative comprendono l'analisi della situazione, la co-progettazione, la realizzazione e la valutazione finale dei progetti. Queste linee guida offrono strumenti concreti per sviluppare un patrimonio culturale all'aperto accessibile, superando le barriere architettoniche e comunicative, e promuovendo una partecipazione attiva e significativa da parte di tutti i cittadini.

EN

Outdoor Heritage: Guidelines for an Inclusive Territory

This document presents guidelines to promote an inclusive and accessible territory through the enhancement of outdoor cultural heritage. The guidelines are a practical outcome of the "Accessible Heritage Inclusive Territory" (PATI) project, developed by the Design Institute of the University of Applied Sciences and Arts of Southern Switzerland (SUPSI). The PATI project, active from 2021 to 2024, conducted over 10 inclusive and accessible activities, involving various cultural and social institutions. The proposed model is based on a participatory and inclusive approach, involving public bodies, museums, and local communities in the co-design of accessible initiatives. The operational phases include situation analysis, co-design, implementation, and final project evaluation. These guidelines provide practical tools to develop accessible outdoor cultural heritage, overcoming architectural and communication barriers, and promoting active and meaningful participation from all citizens.
Práticas de negociação de APCs: A Paridade do Poder de Compra como parâmetro mais equitativo
Creators: name: Brasil, André
Publisher: name: OSF
Year: 2023
Subjects: Policy brief
Science Policy

description: Este documento sugere que a CAPES utilize o índice de Paridade do Poder de Compra (PPP) como parâmetro normalizador da estrutura econômica brasileira ao negociar acordos de transformação com editoras científicas. As metodologias adotadas por muitas editoras para concessão de waivers de publicação empregam o modelo Research4Life ou a classificação do Banco Mundial com base no PIB. Ambas negligenciam as consideráveis disparidades econômicas nacionais, exigindo uma alternativa mais equitativa. Este resumo apresenta evidências de que o PPP pode ser usado como possível alternativa. No entanto, sua apresentação não descarta o valor de consultas com especialistas econômicos para explorar alternativas mais adequadas ao cenário de negociação.
Quantum dot-cavity strong-coupling regime measured through coherent reflection spectroscopy in a very high-Q micropillar
Creators: name: Loo, Vivien
name: Lanco, Loic
name: Lemaitre, Aristide
name: Sagnes, Isabelle
name: Krebs, Olivier
name: Voisin, Paul
name: Senellart, Pascale
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the coherent reflection spectroscopy of a high-quality factor micropillar, in the strong coupling regime with a single InGaAs annealed quantum dot. The absolute reflectivity measurement is used to study the characteristics of our device at low and high excitation power. The strong coupling is obtained with a g=16 \mueV coupling strength in a 7.3\mum diameter micropillar, with a cavity spectral width kappa=20.5 \mueV (Q=65 000). The factor of merit of the strong-coupling regime, 4g/kappa=3, is the current state-of-the-art for a quantum dot-micropillar system.
Valorizando a ciência aberta: Por que a avaliação da CAPES precisa valorizar os periódicos nacionais
Creators: name: Brasil, André
Publisher: name: OSF
Year: 2023
Subjects: Policy brief
Science Policy

description: Este documento analisa o cenário de publicação de acesso aberto (AA) no Brasil, enfatizando a necessidade de processos de avaliação capazes de reconhecer a diversidade existente. Enquanto as altas taxas de processamento de artigos (APCs) representam um desafio para o Brasil (veja policy brief 01), o país conta com uma gama de periódicos em AA que têm um papel essencial para viabilizar sua comunicação científica. Muitos deles são indexados por plataformas como SciELO ou Latindex, e se esses meios de publicação não forem protegidos na avaliação da pesquisa, trabalhos científicos de relevância regional não receberão seu devido valor. Portanto, é imperativo que a avaliação brasileira reconheça e aprecie a pesquisa regional, cuja qualidade é relatada neste policy brief.
Critical Casimir effect for colloids close to chemically patterned substrates
Creators: name: Tröndle, M.
name: Kondrat, S.
name: Gambassi, A.
name: Harnau, L.
name: Dietrich, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Colloids immersed in a critical or near-critical binary liquid mixture and close to a chemically patterned substrate are subject to normal and lateral critical Casimir forces of dominating strength. For a single colloid we calculate these attractive or repulsive forces and the corresponding critical Casimir potentials within mean-field theory. Within this approach we also discuss the quality of the Derjaguin approximation and apply it to Monte Carlo simulation data available for the system under study. We find that the range of validity of the Derjaguin approximation is rather large and that it fails only for surface structures which are very small compared to the geometric mean of the size of the colloid and its distance from the substrate. For certain chemical structures of the substrate the critical Casimir force acting on the colloid can change sign as a function of the distance between the particle and the substrate; this provides a mechanism for stable levitation at a certain distance which can be strongly tuned by temperature, i.e., with a sensitivity of more than 200nm/K.
description: 27 pages, 14 figures
Redshift Anomalies with Universal Free-Fall
Creators: name: Hohensee, Michael A.
name: Mueller, Holger
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For most theories which parametrize modifications of General Relativity, including those which violate the equivalence principle, gravitational redshift tests typically offer weaker constraints on such test parameters than do precision measurements of the universality of free fall (UFF) and local Lorentz invariance (LLI). Although redshift anomalies are often linked with violations of UFF or LLI, they do not have to be. We offer a simple model in which particle masses anomalously vary with the gravitational potential. This generates gravitational redshift anomalies unconstrained by existing tests of UFF or LLI. We propose new experiments to limit such effects.
description: Talk given at the Fifth Meeting on CPT and Lorentz Symmetry, at Indiana University, Bloomington, IN. Some stylistic changes
Nonlinear Breathing-like Localized Modes in C60 Nanocrystals
Creators: name: Savin, Alexander V.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We study the dynamics of nanocrystals composed of C60 fullerene molecules. We demonstrate that such structures can support long-lived strongly localized nonlinear oscillatory modes, which resemble discrete breathers in simple lattices. We reveal that at room temperatures the lifetime of such nonlinear localized modes may exceed tens of picoseconds; this suggests that C60 nanoclusters should demonstrate anomalously slow thermal relaxation when the temperature gradient decays in accord to a power law, thus violating the Cattaneo-Vernotte law of thermal conductivity.
description: 6 pages, 6 figures
Scintillation decay time and pulse shape discrimination in oxygenated and deoxygenated solutions of linear alkylbenzene for the SNO+ experiment
Creators: name: O'Keeffe, H. M.
name: O'Sullivan, E.
name: Chen, M. C.
Publisher: name: arXiv
Year: 2011
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: The SNO+ liquid scintillator experiment is under construction in the SNOLAB facility in Canada. The success of this experiment relies upon accurate characterization of the liquid scintillator, linear alkylbenzene (LAB). In this paper, scintillation decay times for alpha and electron excitations in LAB with 2 g/L PPO are presented for both oxygenated and deoxygenated solutions. While deoxygenation is expected to improve pulse shape discrimination in liquid scintillators, it is not commonly demonstrated in the literature. This paper shows that for linear alkylbenzene, deoxygenation improves discrimination between electron and alpha excitations in the scintillator.
Currere and subjective reconstruction
Creators: name: Wang, Wanying
Publisher: name: University of British Columbia
Year: 2018

description: Juxtaposing currere with elements of ancient Chinese philosophical thought to inform a cosmopolitan concept of spirituality, I seek to articulate how I have engaged in my own subjective reconstruction. In this dissertation I aspired to describe how my subjectivity has been reconstructed through autobiography and academic study, toward a coherent self capable of sustained, critical, and creative engagement with the world (Pinar, 2009, p. 62). All the chapters are focused on the concept of currere. The first chapter explains why I employ the autobiographical method of currere to explore my life and study in Canada. The second chapter provides an example of how I used the method of currere to acquire self-understanding. The third chapter emphasizes the concept of attunement that emerged from my own autobiographical research, described in the second chapter. The fourth and fifth chapters document how my subjectivity has been informed by academic study through the study of ancient Chinese philosophical thought. This dissertation comprises the following theoretical contributions: first, I have contributed to the scholarly effort to understand currere by proposing the concept of Chinese currere. Derived from my subject position as a Chinese woman who has studied in Beijing and Hong Kong, studying now in Vancouver, I hope to contribute to the uniqueness of a Chinese cosmopolitan theory of curriculum as experienced – the initial formulation of a Chinese currere. Second, central to the concept of Chinese currere is the concept of attunement. Attunement incorporates traces of ancient Chinese philosophical thought as it manifests itself in my life writing and reflection on the writing. In keeping with currere, attunement also emphasizes how even informal forms of study (for example, learning that takes place outside the classroom) can contribute to self-understanding and wisdom acquisition. Third, this study juxtaposes understandings of subjectivity from Western and Eastern perspectives, and provides an example of how subjectivity can be reconstructed by academic knowledge and experience. Fourth, this study provides a spiritual understanding of curriculum – especially expressed as currere. Fifth, this dissertation provides a study of the affinities between ancient Chinese philosophical thought and the concept of currere.
Matter-wave Tests of the Gravitational Redshift in Space
Creators: name: Mueller, Holger
name: Hohensee, Michael A.
name: Yu, Nan
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A recent measurement of the gravitational redshift was based on interference of matter waves. Operation in microgravity can improve it by a factor of $10^5$ and, in some models, even $10^{10}$.
description: Talk given at the Fifth Meeting on CPT and Lorentz Symmetry, at Indiana University, Bloomington, IN. Corrected problem with Figure
Single-shot initialization of electron spin in a quantum dot using a short optical pulse
Creators: name: Loo, Vivien
name: Lanco, Loic
name: Krebs, Olivier
name: Senellart, Pascale
name: Voisin, Paul
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a technique to initialize an electron spin in a semiconductor quantum dot with a single short optical pulse. It relies on the fast depletion of the initial spin state followed by a preferential, Purcell-accelerated desexcitation towards the desired state thanks to a micropillar cavity. We theoretically discuss the limits on initialization rate and fidelity, and derive the pulse area for optimal initialization. We show that spin initialization is possible using a single optical pulse down to a few tens of picoseconds wide.
Artificial vegetation : a novel paper-based sound absorber
Creators: name: Salimian, Amirhossein
Publisher: name: University of British Columbia
Year: 2018

description: Demand for acoustic barriers in urban buildings grown in recent times fed by levels of increasing urban noise. Extraneous urban noise in buildings was commonly controlled using noise barriers like absorptive panels. The efficiency and sustainability of such noise absorbers is suspect. Our research in acoustics led to the development of a novel paper-based sound absorbers as a viable alternative for those currently available in the market. We named this product Artificial Vegetation (AV). We tested AV and found it an efficient and sustainable alternative that can be mass produced with relatively comparable low overheads. In this research paper we explored literature in acoustic barriers, both paper- and foam-based. We also identified gaps in the literature. The paper elaborates measurement of sound absorption coefficient using impedance-tube method, as a basic procedure for producing AV. We developed an analytical model that optimizes and improves sound absorptivity of AV. Data gathered from experiments were used to validate our model and test as a computational platform in more AV designs.
Modelling of essential oils kinetics release from encapsulation matrix
Creators: name: Wicochea-Rodriguez, José Daniel
name: Ruiz, Thierry
name: Gastaldi, Emmanuelle
name: Chalier, Pascale
Publisher: name: Zenodo
Year: 2022
Subjects: release
EO
encapsulation
model

description: Essential oils (EO) contain active agents (AA) possessing repellent, antimicrobial and insecticidal properties. Encapsulation is a way to control their release and increasing the AA activity. The release kinetic from the matrix in a controlled environment can be interpolated by the solution of a zero-, half- or first-order differential equation. Even if in practical the release rate might be more complicated, their parameters provide pertinent information about the processes. Several models exist to fit the experimental data and also to describe the release mechanisms such as Avrami, Korsmeyer-Peppas or Higuchi. In the field of controlled release, the Avrami’s equation was generally used to describe the dissolution of a drug in a liquid. Indeed, Avrami’s equation considers several phenomena that may occur simultaneous such as the diffusion of the penetrant into the matrix, the potential swelling of matrix and the release of drug. The objective of this study was to use these three different models to evaluate the release in atmosphere of two different essential oils from an organic matrix. The two essential oils: spearmint and sweet orange, are characterised by varied properties, the former being less volatile, more polar and more viscous than the latter. Moreover, limonene was present in both oils but in higher concentration in one of them. As expected, Avrami’s model leads to the best fit of the experimental kinetic data. The identification of the exponent of Avrami’s model: n, varying between 0.40 and 0.75, indicates that the prevailing release mechanism is diffusional for both essential oils. The usefulness and relevance of the other models will be discussed taking into account the essential oil nature and the envisaged practical applications.
Strain, wing tilt and photoluminescence in epitaxial lateral overgrown GaN on SiC substrates
Creators: name: Gmeinwieser, Nikolaus
name: Engl, Karl
name: Schwarz, Ulrich
name: Zweck, Josef
name: Wegscheider, Werner
name: Miller, Stephan
name: Leber, Andreas
name: Weimar, Andreas
name: Lell, Alfred
name: Härle, Volker
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik
subject: 61.72.Ff; 68.35.Gy; 68.55.Jk; 78.55.Cr; 81.15.Gh

description: We investigate the epitaxial lateral overgrowth (ELOG) process on silicon carbide (SiC) to obtain defect reduced gallium nitride (GaN). The large wing tilt of about 4 degrees causes bunches of edge dislocations above the edge of the ELOG mask. The PL signal of these regions is diminished and broadened and a defect correlated emission line at about 3.4 eV is detected here exclusively. The GaN above the edge shows higher tensile stress than both the wing and the window regions. In order to reduce the wing tilt and to avoid its detrimental properties, the material of the ELOG mask was changed from SiO2 to SiNx. With the SiNx mask we were able to reduce the wing tilt by an order of magnitude to values far below 1 degree. The PL signal of the interface regions shows no sign of low quality material above the mask edge.
A VLT/FLAMES survey for massive binaries in Westerlund 1. III. The WC9d binary W239 and implications for massive stellar evolution
Creators: name: Clark, J. S.
name: Ritchie, B. W.
name: Negueruela, I.
name: Crowther, P. A.
name: Damineli, A.
name: Jablonski, F. J.
name: Langer, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: There is growing evidence that a treatment of binarity amongst OB stars is essential for a full theory of stellar evolution. However the binary properties of massive stars - frequency, mass ratio and orbital separation - are still poorly constrained. In order to address this shortcoming we have undertaken a multiepoch spectroscopic study of the stellar population of the young massive cluster Westerlund 1. In this paper we present an investigation into the nature of the dusty Wolf-Rayet star and candidate binary W239. We determined an orbital period of only 5.05 days - making it one of the most compact WC binaries yet identified - while we interpret a significant near-IR flare between 2004-6 as evidence for a third massive stellar component in the system in a wide eccentric orbit. The presence of a near-IR excess characteristic of hot dust at every epoch is consistent with the expectation that the subset of persistent dust forming WC stars are short period binaries. In conjunction with previous results, the simultaneous presence of both short period Wolf-Rayet binaries and cool hypergiants within Wd 1 provides compelling evidence for a bifurcation in the post-Main Sequence evolution of massive stars due to binarity. Short period O+OB binaries will evolve directly to the Wolf-Rayet phase, either due to an episode of binary mediated mass loss or via chemically homogenous evolution. Conversely, long period binaries and single stars will instead undergo a red loop across the HR diagram via a cool hypergiant phase. Future analysis of the full spectroscopic dataset for Wd 1 will constrain the proportion of massive stars experiencing each pathway; hence quantifying the importance of binarity in massive stellar evolution up to and beyond supernova and the resultant production of relativistic remnants and X-ray binaries. [ABRIDGED]
description: 11 pages, 6 figures, accepted for publication in A&A
MPEC 2025-F251 : 2025 FO16
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FO16

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Research on the Design Strategy of Healing Products for Anxious Consumers During the Covid-19
Creators: name: Wu, Fan
name: Lin, Yang-Cheng
name: Lu, Peng
Publisher: name: figshare
Year: 2022
Subjects: subject: Neuroscience and Physiological Psychology
subject: 120302 Design Innovation
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120305 Industrial Design

description: In addition to work, study, and social pressure, the spread of COVID-19 worldwide has become a new factor leading to anxiety. Therefore, how to relieve people's increasing anxiety is an important issue. This article proposes a series of design guidelines and evaluation criteria of reference significance for designers and psychological counselors. We collected 100 healing products as research samples. Meanwhile, screened out 20 participants with high anxiety using the STAI questionnaire, which evaluated 100 samples and applied Fuzzy C-means for cluster analysis to acquire representative samples. This study uses the evaluation grid method to obtain a three-layer hierarchical diagram and then quantification theory type I analysis to get a high-weight lower layer as design guidelines. After that, we use the analytical hierarchy process to gain the weight value of each middle layer as the evaluation criteria. In this study, we invited two design teams to innovate product schemes based on the reference and non-reference design guidelines. Employ evaluation criteria to establish the grey relational analysis matrix and perceptual questionnaire to evaluate product schemes. The results show that the sort of the product schemes is consistent, which confirms the validity of the evaluation criteria. Furthermore, the product schemes with referenced design guidelines are better than those without them, proving that the design guidelines can effectively guide the designer in the product development stage.
Network of Care among Women 'Living is Urgent!': Times of Healing in Chaos
Creators: name: Guimarães, Marcela Abreu
name: Rodrigues, Domênica
name: Almeida, Viviane Gomes
name: Silva, Glabia Soraia Andrade
Publisher: name: Zenodo
Year: 2024
Subjects: pandemia
rede de cuidados
mulheres
experiência popular

description: Relato de experiência popular em meio à pandemia de COVID-19, durante o ano de 2021, a Coletiva CAIANA criou a Rede de Cuidados entre Mulheres "Viver é Urgente!" para oferecer apoio a mulheres em situação de extrema vulnerabilidade em seu lugar mais íntimo: seus corpos, sua saúde mental e suas casas, que nem sempre são espaços de cuidado e segurança. A experiência aconteceu dentro de um contexto em que todas as atividades tiveram que ser construídas de forma online e com técnicas simples de cuidado, privilegiando o uso de elementos da medicina tradicional em contraponto à alopatia e, acima de tudo, a sensibilidade de iniciar processos de cura e cuidado entendendo que essa mulher, mãe, doméstica, também provedora, requer assistências que se iniciam no saciar a fome de seus filhos e filhas.
Aspiring Teachers Cross-Cultural Encounters, Spaces for Developing Global Awareness.pdf
Creators: name: Aglazor, Genevieve
Publisher: name: figshare
Year: 2022
Subjects: subject: 130313 Teacher Education and Professional Development of Educators
subject: FOS: Educational sciences

description: Teacher preparation programmes around the world continue to be challenged to produce well-rounded and skilled teachers with diverse perspectives to issues and a global worldview especially in this era of migration. Teachers need to come into classrooms with the capability of implementing multi-disciplinary and contextual curricular for the benefit of all students regardless of where the accident of birth places them. This paper argues for broadening aspiring teachers’ knowledge base by inculcating diverse paradigms into teacher education curricular in this era of cross-continental migrations and technological explosions. While multiculturalism seem to be on its way out of the educational discourse, there continues to be a need to sensitize aspiring teachers and constantly re-evaluate curricular content and personal perspectives that influence classroom practices. The study focuses on aspiring teachers’ reaction to cross-cultural curricular content for the purpose of teacher education programme development, policy and attitudinal change among teachers for the benefit of inclusive learning and further research on the production of globally minded teachers
Probing Variant Axion Models at LHC
Creators: name: Chen, Chuan-Ren
name: Frampton, Paul H.
name: Takahashi, Fuminobu
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study collider implications of variant axion models which naturally avoid the cosmological domain wall problem. We find that in such models the branching ratio of $h \to γγ$ can be enhanced by a factor of 5 up to 30 as compared with the standard model prediction. The $h \to γγ$ process is therefore a promising channel to discover a light Higgs boson at the LHC and to probe the Peccei-Quinn charge assignment of the standard model fields from Yukawa interactions.
description: 16 pages, 4 figures
Transport in weakly and strongly modulated two-dimensional electron systems realized by Cleaved-Edge-Overgrowth
Creators: name: Feil, Thomas
name: Deutschmann, R. A.
name: Wegscheider, Werner
name: Rother, Martin
name: Schuh, Dieter
name: Bichler, Max
name: Abstreiter, Gerhard
name: Rieder, Bernhard
name: Keller, Joachim
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik
subject: 73.21.Cd; 73.63.Hs

description: Periodic modulation of a free two-dimensional electron system changes the bandstructure in which the electrons move. A weak modulation opens up small energy gaps in the free electron bandstructure while a strong, short-period modulation leads to the formation of well separated cosine-like minibands. We study transport in both cases using structures grown with the Cleaved-Edge-Overgrowth method. It allows to fabricate high quality two-dimensional electron systems with arbitrary modulation periods which are precise on an atomic scale. Perturbing the system only weakly with a long-period superlattice that is located some distance away from the electron layer leads to magneto-transport characteristics which exhibit each a number of different 1/B-periodic oscillations. These can be very well explained by semiclassical theory and allow the extraction of the Fermi surface of the system. The strong modulation with a short-period superlattice leads to the two-dimensional equivalent of a conventional superlattice. One very important difference lies in the stability of the expected negative differential conductance regime with respect to electric field instabilities. Geometrical considerations show that the observation of stable Bloch oscillations is possible in these systems. We will show that density dependent transport studies confirm the formation of a two-dimensional superlattice. Although negative diffential conductance, also observed in those samples, must be attributed to an inhomogeneous density distribution.
BASIC SKILLS FOR RE-ENGINEERING CONFERENCE PRESENTATIONS.
Creators: name: Aglazor, Genevieve
Publisher: name: figshare
Year: 2022
Subjects: Education

description: Academics do not only teach but they also research. Research cannot be up-taken unless there is a means of dissemination. One of the ways of research report dissemination is the conference. The academic conference is an opportunity for scholars to assemble and engage in conversations that aim at improving the practice of teaching and learning. It provides a forum for the sharing of ideas and experiences that enhance education and, by extension, human life. One of the challenges that academics face is rarely what to present at conferences, but how to present for impact. This paper justifies conference attendance and proposes strategies for the reengineering of conference presentations for national development.
Sorting by Transpositions is Difficult
Creators: name: Bulteau, Laurent
name: Fertin, Guillaume
name: Rusu, Irena
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: In comparative genomics, a transposition is an operation that exchanges two consecutive sequences of genes in a genome. The transposition distance, that is, the minimum number of transpositions needed to transform a genome into another, is, according to numerous studies, a relevant evolutionary distance. The problem of computing this distance when genomes are represented by permutations, called the Sorting by Transpositions problem, has been introduced by Bafna and Pevzner in 1995. It has naturally been the focus of a number of studies, but the computational complexity of this problem has remained undetermined for 15 years. In this paper, we answer this long-standing open question by proving that the Sorting by Transpositions problem is NP-hard. As a corollary of our result, we also prove that the following problem is NP-hard: given a permutation pi, is it possible to sort pi using db(pi)/3 permutations, where db(pi) is the number of breakpoints of pi?
D’Arcy W. Thompson’s Cartesian transformations: a critical evaluation
Creators: name: Scholtz, Gerhard
name: Knötel, David
name: Baum, Daniel
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Biometrics
subject: B-spline
subject: Crabs
subject: Crustaceans
subject: Decapoda
subject: Form
subject: Humanities
subject: FOS: Humanities
subject: Icons
subject: Landmarks
subject: Transformation
subject: 590 Tiere (Zoologie)

description: The images of D’Arcy Wentworth Thompson’s book “On Growth and Form” got an iconic status and became influential for biometrics and other mathematical approaches to organismic form. In particular, this is true for those of the chapter on the theory of transformation, which even has an impact on art and humanities. Based on his approach, Thompson formulated far-reaching conclusions with a partly anti-Darwinian stance. Here, we use the example of Thompson’s transformation of crab carapaces to test to what degree the transformation of grids, landmarks, and shapes result in congruent images. For comparison, we applied the same series of tests to digitized carapaces of real crabs. Both approaches show similar results. Only the simple transformations show a reasonable form of congruence. In particular, the transformations to majoid spider crabs reveal a complicated transformation of grids with partly crossing lines. By contrast, the carapace of the lithodid species is relatively easily created despite the fact that it is no brachyuran, but evolved a spider crab-like shape convergently from a hermit crab ancestor.