cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Planetary health impacts of the nutrition transition: understanding causal links and changes through time
Creators: name: Hadjikakou, M
name: Roser, DJ
name: Wiedmann, T
Publisher: name: UNSW Sydney
Year: 2016

description: Although not traditionally regarded as a central theme in Industrial Ecology, food production and consumption are directly related to health and well-being, on the one hand, and with resource use and environmental impacts on the other. Increasing affluence is said to be fuelling an ongoing ‘nutrition transition’, a term coined in the 1990s by the renowned public health academic Barry Popkin, used to describe more westernized, higher calorie and more meat-intensive diets, increasingly consumed around the world. Some aspects of this transition are already evident through rising rates of diet-related disease, but full quantification and identification of factor interdependencies (particularly those between environmental and other variables) is still incomplete. There is therefore a need to unpack and rigorously test proposed conceptual models, with the aim of building an unbiased model capable of explaining patterns and monitoring the ways they have changed through time and are likely to continue evolving in the future. The poster focuses on a small part of a holistic attempt to test a dominant conceptual model describing the phenomenon known as the nutrition transition. Data mining using Bayesian Belief Networks (BBNs) provides an ideal method to plot and test prior beliefs based on a large multivariate dataset comprised of indicators of socioeconomic development, dietary composition, environmental footprint indicators, and health risk factors at a national level covering a thirty-two year period (1980-2011). The results focus on the probabilistic relationships between affluence-driven dietary change and food-related MRIO-derived environmental footprints such as water use, land use (cropland and pasture), biomass, nitrogen and phosphorus have changed in recent decades. There is also an emphasis on how affluence compares to other variables such as geography, time or diverse socioeconomic factors in explaining the variance in dietary patterns and their associated environmental impacts.
description: Opportunities for the Critical Decade – Decoupling Well-Being from Environmental Pressures and Impacts (Gordon Research Conference on Industrial Ecology); Stowe, Vermont; 2016-06-19 - 2016-06-24
Quasar Radio-Loudness and the Elliptical Core Problem
Creators: name: Hamilton, Timothy S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The dichotomy between radio-loud and radio-quiet QSOs is not simply one of host morphology. While spiral galaxies almost exclusively host radio-quiet QSOs, ellipticals can host either radio-louds or radio-quiets. We find that a combination of accretion rate and host scale determines which type of QSO a given elliptical galaxy will host. QSOs with high x-ray luminosities (above 10^44.5 erg/s at 0.5 keV) are mostly radio-loud. But those with low luminosities divide fairly neatly in size (measured by the half-light radius, r_e). Those larger than about 10 kpc are radio-loud, while smaller ones are radio-quiet. It has recently been found that core and coreless ellipticals are also divided near this limit. This implies that for low-luminosity QSOs, radio-louds are found in core ellipticals, while radio-quiets are in coreless ellipticals and spirals. This segregation also shows up strongly for low-redshift objects, and in general, there is a loss over time of coreless, radio-loud QSOs. Since the presence or absence of a core may be tied to the galactic merger history, we have an evolutionary explanation for the differences between radio-loud and radio-quiet QSOs.
description: 8 pages, 4 figures. To be published in MNRAS
Vanguardia Obrera, 47, año V
Creators: name: PCE(ML)
Publisher: name: Zenodo
Year: 1969
Subjects: vanguardia obrera
PCE(ML)

description: Órgano de expresión del Partido Comunista de España (M-L). Artículos principales que contiene: Cinco años de lucha han templado y fortalecido al partido El "nuevo" Gobierno OPUS-Franquista obediente servidor de los yanquis ¡Yanquis fuera de España! El Trotskismo, contra la formación de un frente revolucionario y patriota Combatamos el sectarismo en nuestras filas ¡Solidaridad con los presos políticos! La extraordinaria transformación de la condición de la mujer
Non-equilibrium dynamics of bosonic atoms in optical lattices: Decoherence of many-body states due to spontaneous emission
Creators: name: Pichler, H.
name: Daley, A. J.
name: Zoller, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze in detail the heating of bosonic atoms in an optical lattice due to incoherent scattering of light from the lasers forming the lattice. Because atoms scattered into higher bands do not thermalize on the timescale of typical experiments, this process cannot be described by the total energy increase in the system alone (which is determined by single-particle effects). The heating instead involves an important interplay between the atomic physics of the heating process and the many-body physics of the state. We characterize the effects on many-body states for various system parameters, where we observe important differences in the heating for strongly and weakly interacting regimes, as well as a strong dependence on the sign of the laser detuning from the excited atomic state. We compute heating rates and changes to characteristic correlation functions based both on perturbation theory calculations, and a time-dependent calculation of the dissipative many-body dynamics. The latter is made possible for 1D systems by combining time-dependent density matrix renormalization group (t-DMRG) methods with quantum trajectory techniques.
description: 17 pages, 14 figures
Verification and applications of surface waves extracted from ambient noise
Creators: name: Xie, Jun
Publisher: name: Macquarie University
Year: 2022
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: About a decade ago, it was shown that Empirical Green's Function (EGF) between two seismic stations can be extracted from cross-correlation of ambient seismic noise. Since then, studies based on ambient noise have become a method of choice among seismologists. Noise Cross-correlation Function (NCF) has been widely used for seismic tomography (known as ANT), monitoring velocity changes, calibrating earthquake location, and so on. Almost all of these studies are based on the assumption that accurate EGF can be extracted from cross-correlations of ambient noise. However, uncertainties of the dispersion measurements from ambient noise are still not clear. It is also not certain whether surface waves at periods longer than 50 s can be extracted from ambient noise recorded at portable seismic stations or whether the resulting dispersion measurements from ambient noise are accurate enough to image lithosphere and asthenosphere structures. This thesis is to address these questions. I investigate the accuracy of surface wave dispersion curves at both short (10-30 s) and long (50-250 s) periods from ambient noise. By comparing the waveforms and dispersion curves from ambient noise with those from earthquake data, I demonstrate that the dispersion measurements from surface waves extracted from ambient noise are as accurate as those from earthquake data. The dispersion measurements can be used in ambient noise tomography to provide complementary data, which can be used to constrain the lithospheric and asthenospheric structures.
 Furthermore, I demonstrate that broadband surface waves at 10-150 s period from ambient noise can be used to construct the 3D shear wave velocity structure from the surface down to 300 km depth in the USA. I calculate NCFs among all the US Aarray stations in US continent and extract broadband (10-150 s) Rayleigh wave phase velocities, and obtain phase velocity maps by inverting the broadband dispersion curves. Then, I build a new 3D shear wave velocity model of the lithosphere and asthenosphere structure by inverting the resulting phase velocity maps.
 Finally, I demonstrate that using EGFs from ambient noise, we can improve earthquake location and locate recorded historical earthquakes. Using a seismic array in central Australia, I test the accuracy of our location method using ambient noise. I find that, when the distribution of the remote station is good and the reference station is located less than 20 km away from the source, the location error is less than 2 km. I conclude that this method can be used to obtain ground truth event with location error equal or smaller than 2 km (GT2) in regions with sparsely distributed remote stations.
Conditional Spin-Squeezing of a Large Ensemble via the Vacuum Rabi Splitting
Creators: name: Chen, Zilong
name: Bohnet, Justin G.
name: Sankar, Shannon R.
name: Dai, Jiayan
name: Thompson, James K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use the vacuum Rabi splitting to perform quantum nondemolition (QND) measurements that prepare a conditionally spin-squeezed state of a collective atomic psuedo-spin. We infer a 3.4(6) dB improvement in quantum phase estimation relative to the standard quantum limit for a coherent spin state composed of uncorrelated atoms. The measured collective spin is composed of the two-level clock states of nearly 10^6 Rb-87 atoms confined inside a low finesse F = 710 optical cavity. This technique may improve atomic sensor precision and/or bandwidth, and may lead to more precise tests of fundamental physics.
description: Letter (4 pages, 4 figures) and Supporting Material (3 pages). To appear in Phys. Rev. Lett
Synchrotron Emission on the Largest Scales: Radio Detection of the Cosmic-Web
Creators: name: Brown, Shea
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Shocks and turbulence generated during large-scale structure formation are predicted to produce large-scale, low surface-brightness synchrotron emission. On the largest scales, this emission is globally correlated with the thermal baryon distribution, and constitutes the "Synchrotron Cosmic- Web". I present the observational prospects and challenges for detecting this faint emission with upcoming SKA pathfinders.
description: 10 pages, 3 figures; submitted to the Journal of Astrophysics & Astronomy
Composition-Diamond Lemma for Non-associative Algebras over a Commutative Algebra
Creators: name: Chen, Yuqun
name: Li, Jing
name: Zeng, Mingjun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16S15, 16S15, 13P10, 17Dxx, 13Axx

description: We establish the Composition-Diamond lemma for non-associative algebras over a free commutative algebra. As an application, we prove that every countably generated non-associative algebra over an arbitrary commutative algebra $K$ can be embedded into a two-generated non-associative algebra over $K$.
description: 10 pages
What makes a star turn violent? : exploring high-mass star formation and stellar magnetic helicity
Creators: name: Lund, Kristin
Publisher: name: University of St Andrews
Year: 2020
Subjects: subject: QB806.L86
subject: Stars--Formation
subject: Stars--Magnetic fields

description: High-mass stars play an important role in both the dynamical and chemical evolution of the galaxy, hence how they form has long been a topic of interest. In this thesis I explore accretion as a possible means of forming high-mass stars. I use a radiation hydrodynamics code to simulate accretion onto a star which emits ionising radiation. Usually accretion is assumed to end once ionisation begins, however I ﬁnd accretion continues through the ionisation front whilst the ionised region is gravitationally trapped. This extended period of accretion increases the amount of material added to the star. As most high-mass stars are observed in close binary systems, next I develop a semi-analytic model to investigate whether accretion onto wide lowmass binaries can increase the mass of the stars and simultaneously decrease their separation. The result suggests magnetic braking of the accretion ﬂow is a feasible way of forming the most massive close binary systems. The second part of this thesis focuses on the magnetic helicity density of low-mass stars. There has been growing interest in magnetic helicity as a potential tracer of stellar eruptions, but measurements based on observations have been limited to the Sun. I present an analytic expression for the magnetic helicity density across any stellar surface given only observable quantities. This expression is used to calculate the magnetic helicity density of 52 stars, which is then plotted against other stellar parameters. I ﬁnd mostly different behaviours for the partially and largely convective stars, except when plotting helicity density against toroidal magnetic energy. In that case the entire stellar sample follows the same power law. Comparing the Sun to the other stars I ﬁnd the variation in solar helicity densities across a solar cycle falls within the scatter of the stellar values.
[CPR Alaska passenger list]
Creators: name: Canadian Pacific Steamship Company
Publisher: name: The University of British Columbia
Year: 2023

description: Pamphlet passenger list from the S.S. Princess Charlotte and S.S. Princess Louise, Canadian Pacific Railway Company, British Columbia Coast Steamship Service. Sailing from Victoria, B.C., July 14 and from Vancouver, B.C., July 15 to Southeastern Alaska Ports. Pamphlet includes distances between locations, list of passenger names, information for passengers, advertisements for CPR services.
Rotational and Translational Phonon Modes in Glasses Composed of Ellipsoidal Particles
Creators: name: Yunker, Peter J.
name: Chen, Ke
name: Zhang, Zexin
name: Ellenbroek, Wouter G.
name: Liu, Andrea J.
name: Yodh, A. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The effects of particle shape on the vibrational properties of colloidal glasses are studied experimentally. 'Ellipsoidal glasses' are created by stretching polystyrene spheres to different aspect ratios and then suspending the resulting ellipsoidal particles in water at high packing fraction. By measuring displacement correlations between particles, we extract vibrational properties of the corresponding "shadow" ellipsoidal glass with the same geometric configuration and interactions as the 'source' suspension but without damping. Low frequency modes in glasses composed of ellipsoidal particles with major/minor axis aspect ratios $\sim$1.1 are observed to have predominantly rotational character. By contrast, low frequency modes in glasses of ellipsoidal particles with larger aspect ratios ($\sim$3.0) exhibit a mix of rotational and translational character. All glass samples were characterized by a distribution of particles with different aspect ratios. Interestingly, even within the same sample it was found that small-aspect-ratio particles participate relatively more in rotational modes, while large-aspect-ratio particles tend to participate relatively more in translational modes.
description: 6 Pages, 6 Figures
Pectin methyl esterification functions in seed development and germination
Creators: name: Levesque-Tremblay, Gabriel
Publisher: name: University of British Columbia
Year: 2014

description: Homogalacturonan pectin domains are synthesized in a highly methyl esterified form and can be de-methyl esterified by the cell wall enzyme Pectin Methyl Esterase (PME). The prevalent model for PME mode of action indicates that when PMEs act on a stretch of adjacent galacturonic acid glycosides, they may strengthen the cell wall but when PMEs act on non-adjacent galacturonic acid glycosides they may loosen the cell wall. PME activity can be regulated in planta by the proteinaceous inhibitor, PMEI. I used PME and PMEI to study the importance of methyl esterification in seed development and germination. As a means to identify PMEs involved in seed coat mucilage I identified 7 PMEs expressed in the seed coat. The PME gene HIGHLY METHYL ESTERIFIED SEED (HMS) is highly expressed at 7 Day Post Anthesis (DPA) both in the seed coat and the embryo. Using a hms-1 mutant, I showed that HMS is required for normal levels of PME activity and methyl esterification in the seed, mucilage extrusion and proper embryo cell expansion, rigidity and morphogenesis between 4 and 10 DPA. The mucilage extrusion defect is a secondary effect of the function of HMS in the embryo. I hypothesize that HMS is required for cell wall loosening in the embryo to allow for cell expansion during the accumulation of storage reserves. To evaluate the importance of methyl esterification in germination my collaborators and I first showed that PME activity changed during the different stages of germination: it first increased before testa rupture and decreased during endosperm rupture. Treatment with the hormone abscisic acid (ABA) to increase dormancy prolonged PME activity in the seeds. Inversely when we negatively regulated PME activity in the A. thaliana seed with the overexpression of a PMEI (OE PMEI5), we generated larger seeds with bigger cells. These seeds germinated faster both in presence or absence of ABA. Therefore we hypothesize that the PME(s) inhibited by PMEI5 establishes stronger cell walls that restrict germination. This thesis clearly demonstrates that PME activity is important in the regulation of seed cell wall methyl esterification impacting embryo growth and germination.
Proposal for non-local electron-hole turnstile in the Quantum Hall regime
Creators: name: Battista, F.
name: Samuelsson, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theory for a mesoscopic turnstile that produces spatially separated streams of electrons and holes along edge states in the quantum Hall regime. For a broad range of frequencies in the non-adiabatic regime the turnstile operation is found to be ideal, producing one electron and one hole per cycle. The accuracy of the turnstile operation is characterized by the fluctuations of the transferred charge per cycle. The fluctuations are found to be negligibly small in the ideal regime.
description: 4+ pages, 2 figures
Auf den Spuren von Partizipation: Die Bedeutung von Partizipation für Personen in prekären Lebenslagen und Folgerungen für die Stadtentwicklung
Creators: name: Scholer, Nico
Publisher: name: Zenodo
Year: 2019

description: Die Partizipation von Bewohner*innen wird als Voraussetzung und Merkmal für eine nachhaltige und zukunftsfähige Entwicklung von Quartieren, Gemeinden und Städten angesehen. Forschungsarbeiten zeigen auf, dass in gängigen informellen Partizipationsverfahren der Stadtentwicklung Personen in prekären Lebenslagen unterrepräsentiert sind. Soziale Ungleichheit wird dadurch verschärft anstatt abgebaut. Ergebnisse qualitativer Forschungen über Gründe der ausschliessenden Wirkung heben hervor, die Formen von Partizipationsverfahren zu reflektieren und an die Lebenslagen von Personen in prekären Lebenslagen anzupassen. Respektive sind bisher unsichtbare Partizipationsformen wahrzunehmen und für die Partizipationspraxis anzuerkennen. Die vorliegende Masterthesis bettet sich in diesen Forschungsstrang ein, der durch das Kennenlernen und Verstehen von Lebenswelten, subjektive Deutungen von Partizipation sichtbar macht. Mit problemzentrierten Interviews wurden Personen in prekären Lebenslagen befragt und deren Biographien mittels Narrationsanalyse untersucht. Das Erkenntnisinteresse richtet sich auf die Partizipationserfahrungen der befragten Personen und die subjektiven Bedeutungen von Partizipation. Die Resultate der Masterthesis zeigen auf, dass die befragten Personen mittels Partizipation Herausforderungen in Bezug auf die Lebensbewältigung bearbeiten. Partizipation wird als Sinn stiftend und bedeutungsvoll erfahren, wenn sie in Zugehörigkeits-­‐, Anerkennungs-­‐, Vertrauens-­‐ und Selbstbestimmungsprozesse eingebunden ist. Für die Professionellen der Sozialen Arbeit bedeutet dies, Partizipationsprozesse zu ermöglichen, die an den Erfahrungen und Lebensrealitäten von Personen in prekären Lebenslagen anknüpfen. Somit können deren Bedürfnisse in die Stadtentwicklung einfliessen. Dies kann durch eine stetige Integrations-­‐ und Netzwerkarbeit im Rahmen einer langfristig orientierten Partizipationskultur gelingen.
description: + Code Diss LU: hslusa masa + Fussnote: Master of Science in Sozialer Arbeit, Bern, Luzern, St. Gallen, Zürich, 2019 + NL-Code: NLLUHSA201902
Secondary infall model and dark matter scaling relations in intermediate redshift early - type galaxies
Creators: name: Cardone, V. F.
name: Del Popolo, A.
name: Tortora, C.
name: Napolitano, N. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Scaling relations among dark matter (DM) and stellar quantities are a valuable tool to constrain formation scenarios and the evolution of galactic structures. However, most of the DM properties are actually not directly measured, but derived through model dependent mass mapping procedures. It is therefore crucial to adopt theoretically and observationally well founded models. We use here an updated version of the secondary infall model (SIM) to predict the halo density profile, taking into account the effects of angular momentum, dissipative friction and baryons collapse. The resulting family of halo profiles depends on one parameter only, the virial mass, and nicely fits the projected mass and aperture velocity dispersion of a sample of intermediate redshift lens galaxies. We derive DM related quantities (namely the column density and the Newtonian acceleration) and investigate their correlations with stellar mass, luminosity, effective radius and virial mass.
description: 15 pages, 3 figures, 2 tables, accepted for publication on MNRAS
(Data) Sharing is Caring
Creators: name: Plomp, Esther
Publisher: name: Zenodo
Year: 2021
Subjects: Data sharing
FAIR
CARE
Open Data
Data repository
Biological Anthropology
Osteology
Open Science

description: Presentation given by Dr. Esther Plomp on the 18th of September 2021 for the BABAO 2021 conference. Abstract: Data sharing is part of the recent developments in opening up scientific research (a movement also known as Open Science/Scholarship). By opening up more aspects of research than just the final output in the form of a publication, the transparency of scientific research can be increased and reproducibility of results may be improved. Opening up the scientific process also promotes equitable access to resources and allows for the recognition of outputs other than the traditional scientific publication, such as data, code and analysis protocols. Many funders (for example, the European Commission and Wellcome) and publishers (such as the American Journal of Physical Anthropology) now also require researchers to share the data underlying publications whenever possible. This presentation will go deeper into ethical considerations of data sharing, why data sharing is beneficial, and highlights tools that facilitate data sharing following recommended practices.
Implementation of the Shearing Box Approximation in Athena
Creators: name: Stone, James M.
name: Gardiner, Thomas A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe the implementation of the shearing box approximation for the study of the dynamics of accretion disks in the Athena magnetohydrodynamics (MHD) code. Second-order Crank-Nicholson time differencing is used for the Coriolis and tidal gravity source terms that appear in the momentum equation for accuracy and stability. We show this approach conserves energy for epicyclic oscillations in hydrodynamic flows to round-off error. In the energy equation, the tidal gravity source terms are differenced as the gradient of an effective potential in a way which guarantees that total energy (including the gravitational potential energy) is also conserved to round-off error. We introduce an orbital advection algorithm for MHD based on constrained transport to preserve the divergence-free constraint on the magnetic field. This algorithm removes the orbital velocity from the time step constraint, and makes the truncation error more uniform in radial position. Modifications to the shearing box boundary conditions applied at the radial boundaries are necessary to conserve the total vertical magnetic flux. In principle similar corrections are also required to conserve mass, momentum and energy, however in practice we find the orbital advection method conserves these quantities to better than 0.03% over hundreds of orbits. The algorithms have been applied to studies of the nonlinear regime of the MRI in very wide (up to 32 scale heights) horizontal domains.
description: 18 pages, 11 figures. Accepted by ApJS
On the order of BEC transition in weakly interacting gases predicted by mean-field theory
Creators: name: Olivares-Quiroz, L.
name: Romero-Rochin, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Predictions from Hartree-Fock (HF), Popov (P), Yukalov-Yukalova (YY) and $t$-matrix approximations regarding the thermodynamics from the normal to the BEC phase in weakly interacting Bose gases are considered. By analyzing the dependence of the chemical potential $μ$ on temperature $T$ and particle density $ρ$ we show that none of them predicts a second-order phase transition as required by symmetry-breaking general considerations. In this work we find that the isothermal compressibility $κ_{T}$ predicted by these theories does not diverge at criticality as expected in a true second-order phase transition. Moreover the isotherms $μ=μ(ρ,T)$ typically exhibit a non-singled valued behavior in the vicinity of the BEC transition, a feature forbidden by general thermodynamic principles. This behavior can be avoided if a first order phase transition is appealed. The facts described above show that although these mean field approximations give correct results near zero temperature they are endowed with thermodynamic anomalies in the vicinity of the BEC transition. We address the implications of these results in the interpretation of current experiments with ultracold trapped alkali gases.
description: 16 pages, 5 figures
D4.1 Technical Specification of Remote Radio Light Head (RRLH)
Creators: name: KOFFMAN, Israel
name: Zion HADAD, Baruch Globen
name: ZHANG, Yue
name: LI, Wei
name: MÜLLER, Robert
name: GARCIA-MARQUEZ, Jorge
name: RAN, Moshe
name: ZHANG, Xun
Publisher: name: Zenodo
Year: 2018
Subjects: RRLH, VLC, 5G, mmW, PHY, MAC, VRAN, DRAN

description: This document describes the general specifications for the Remote Radio Light Head (RRLH) module. Technical, physical and link layer architecture of the radio-light access network and light rose architecture are provided. These include the AC/DC driver circuit, the VLC modulator and mmW RF circuits and centralised home VRAN. Furthermore, the additional cable routing of radio over fibre are described as well.

The document also provides specifications for internal modules of the RRLH such as Layer2/3 Processor, DRAN Processor, RRLH Controller, VLC Module, mm-Wave Module and Splitter and Switch Module
Spin-dependent inertial force and spin current in accelerating systems
Creators: name: Matsuo, Mamoru
name: Ieda, Jun'ichi
name: Saitoh, Eiji
name: Maekawa, Sadamichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-dependent inertial force in an accelerating system under the presence of electromagnetic fields is derived from the generally covariant Dirac equation. Spin currents are evaluated by the force up to the lowest order of the spin-orbit coupling in both ballistic and diffusive regimes. We give an interpretation of the inertial effect of linear acceleration on an electron as an effective electric field and show that mechanical vibration in a high frequency resonator can create a spin current via the spin-orbit interaction augmented by the linear acceleration.
description: 11 pages,4 figures
Questions de recherche et méthodologies : pourquoi la science est toujours politique
Creators: name: Balli, Fabio
Publisher: name: Zenodo
Year: 2021
Subjects: méthodologies de recherche
théories critiques
santé publique critique
paradigmes scientifiques
socio-constructivisme
approche naturaliste
processus de recherche et développement
paradigmes légaux
qualité des résultats de recherche
théorie sociale d'émancipation
axiomes

description: La ‘santé’ peut-elle être imposée sans consentement ? La recherche médicale améliore-t-elle notre autonomie ? La science aide-t-elle à poser des questions (adéquates) ? Et si nous améliorions notre façon de coopérer ? Je propose ici de réfléchir de manière critique à certaines croyances inhérentes à toute question et méthodologie scientifique, en m'appuyant sur des exemples tirés de la recherche médicale, qui nous concerne toutes et tous. Mon objectif est de sensibiliser aux moyens d'améliorer la fiabilité, la pluralité et l'ouverture de la science. English version
description: Fichier éditable : https://docs.google.com/presentation/d/1F_K50KTr_j7Qztks7wOUhrwhEok2bsBBiDFdKC4e-fs/edit
Effect of Rain Scavenging on Altitudinal Distribution of Soluble Gaseous Pollutants in the Atmosphere
Creators: name: Elperin, Tov
name: Fominykh, Andrew
name: Krasovitov, Boris
name: Vikhansky, Alexander
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We suggest a model of rain scavenging of soluble gaseous pollutants in the atmosphere. It is shown that below-cloud gas scavenging is determined by non-stationary convective diffusion equation with the effective Peclet number. The obtained equation was analyzed numerically in the case of log-normal droplet size distribution. Calculations of scavenging coefficient and the rates of precipitation scavenging are performed for wet removal of ammonia (NH3) and sulfur dioxide (SO2) from the atmosphere. It is shown that scavenging coefficient is non-stationary and height-dependent. It is found also that the scavenging coefficient strongly depends on initial concentration distribution of soluble gaseous pollutants in the atmosphere. It is shown that in the case of linear distribution of the initial concentration of gaseous pollutants whereby the initial concentration of gaseous pollutants decreases with altitude, the scavenging coefficient increases with height in the beginning of rainfall. At the later stage of the rain scavenging coefficient decreases with height in the upper below-cloud layers of the atmosphere.
description: 12 pages, 6 figures
ZnO nanostructures for sensing and photovoltaic devices
Creators: name: Mohseni Kiasari, Nima
Publisher: name: University of British Columbia
Year: 2014

description: In this PhD thesis, vertical arrays of zinc oxide (ZnO) nanowires (NWs) are synthesized in a CVD system and then deposited on patterned electrodes using dielectrophoresis (DEP). The nanowire devices illustrate 4 orders of magnitude increase in conductivity when exposed to ultra violet (UV) irradiation of 1220 μW/cm². The UV response has a fast component, due to electron-hole generation, as well as a slower component, attributed to the release of oxygen. Moreover, due to the increased electron density in the presence of UV, the type of oxygen species on the surface of ZnO changes to more reactive negative ions. In addition, when the pressure is decreased to 0.05 mBar, the conductivity of the NWs increases ∼ 2 and 3.5 times for NWs with 300-nm and 100-nm diameter, respectively. For the first time, UV irradiation is used to improve the carbon monoxide (CO) sensing properties of ZnO. When exposed to 250 μW/cm² UV irradiation, not only the sensitivity increases more than 75%, but also a repeatable and recoverable response is obtained, which is due to formation of more reactive oxygen ions. For the same reason, when the temperature is elevated, higher sensitivity to CO is achieved. The devices demonstrate exponential sensitivities of more than 5 decades to 60% increase in relative humidity (RH) at room temperature, which is a record for ZnO NW based RH sensors. A novel, low-cost and simple technique is developed for fabrication of sensors based on solution processed ZnO nanoparticles (NPs) by simply sketching the electrode lines and painting the NP ink. Sensors show 2000 times increase in conductivity when exposed to 1220 μW/cm² UV irradiation and more than 200% increase in current when exposed to 5-mins of CO pulse at room temperature. Furthermore, this thesis presents efficient (3.8%) inverted organic photovoltaic devices based on a P3HT:PCBM bulk heterojunction blend with improved charge-selective layers. ZnO NP films with different thicknesses are deposited on the transparent electrodes as a nano-porous electron-selective contact layer. The optimized inverted devices show exceptional short circuit current, which is related to increased quantum efficiency.
Acoustic Faraday effect in Tb$_3$Ga$_5$O$_{12}$
Creators: name: Sytcheva, A.
name: Loew, U.
name: Yasin, S.
name: Wosnitza, J.
name: Zherlitsyn, S.
name: Thalmeier, P.
name: Wyder, T. Goto. P.
name: Luethi, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transverse acoustic wave propagating along the [100] axis of the cubic Tb$_3$Ga$_5$O$_{12}$ (acoustic $c_{44}$ mode) is doubly degenerate. A magnetic field applied in the direction of propagation lifts this degeneracy and leads to the rotation of the polarization vector - the magneto-acoustic Faraday rotation. Here, we report on the observation and analysis of the magneto-acoustic Faraday-effect in Tb$_3$Ga$_5$O$_{12}$ in static and pulsed magnetic fields. We present also a theoretical model based on magnetoelastic coupling of 4$f$ electrons to both, acoustic and optical phonons and an effective coupling between them. This model explains the observed linear frequency dependence of the Faraday rotation angle.
How to think about mental illness
Creators: name: Black, Kevin J.
Publisher: name: F1000 Research Limited
Year: 2019

description: A 2002 lecture to 2nd year medical students on the medical model of psychiatry.
References:
Black KJ, Guze SB: Psychiatry and the medical model. Ch. 1 (pp. 3-14) in Guze SB (ed.), Washington University Adult Psychiatry. St. Louis: Mosby, 1997.
Black KJ, Guze SB: Diagnosis. Ch. 2 (pp. 15-26) in Guze SB (ed.), Washington University Adult Psychiatry. St. Louis: Mosby, 1997.
Supplement to the manuscript: Predicting physician consultations for low back pain using claims data and population-based cohort data – an interpretable machine learning approach.
Creators: name: Adrian, Richter
name: Julia, Truthmann
name: Jean‑François, Chenot
name: Oliver, Schmidt Carsten
Publisher: name: Zenodo
Year: 2021
Subjects: record linkage, machine learning, calibration, best subset selection, low back pain

description: This document provides supplementary information to the main manuscript.
Supplementary document for Detection of virus particles by scattering field using three-dimensional polarization modulation imaging method - 5464686.pdf
Creators: name: Guo, Baoheng
name: Ni, Bin
name: Jin, Xiao
name: Zhang, Heng
name: Zhao, Hanwen
name: Marsh, John
name: Hou, Lianping
name: Dong, Lei
name: Li, Shanhu
name: Xiong, Jichuan
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Supplement
Hydrodynamic Vacuum Sources of Dark Matter Self-Generation in Accelerated Universe without Big Bang
Creators: name: Chefranov, S. G.
name: Novikov, E. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Fluid Dynamics (physics.flu-dyn)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We have obtained a generalization of the hydrodynamic theory of vacuum in the context of general relativity. While retaining the Lagrangian character of general relativity, the new theory provides a natural alternative to the view that the singularity is inevitable in general relativity and in the theory of a hot Universe. We show that the macroscopic source-sink motion of the ordinary (dark) matter during production-absorption of particles by vacuum generates polarization (determining the variability of the cosmological term in general relativity). We have removed the well-known problems of the cosmological constant by refining the physical nature of dark energy associated precisely with this hydrodynamically initiated variability of the vacuum energy density. A new exact solution of the modified general relativity equations that contains no free (fitting) parameter (additional to thouse available in general relativity) has been obtained. It corresponds to continuous and metric-affecting production of ultralight dark matter particles out of vacuum, with its density being retaned constant during the expansion of spatially flat Universe. This solution is shown to be stable in the regime of cosmological expansion untill Tmax about 38 billion years. After that time, the solution becomes unstable and characterizes the inverse process of dark matter particles absorption by the vacuum in the regime of contraction of the Universe. The physical nature of dark matter particles is considered and their mass is estimated. Good quantitative agreement of the indicated exact solution with cosmological observations (SnIa, SDSS-BAO and recently found reduction of acceleration of the expanding Universe) has been obtained.
description: 22 pages, 1 figure
Vanguardia Obrera, 46, año V
Creators: name: PCE(ML)
Publisher: name: Zenodo
Year: 1969
Subjects: vanguardia obrera
PCE(ML)

description: Órgano de expresión del Partido Comunista de España (M-L). Artículos principales que contiene: La construcción del socialismo en Albania Mentís a las calumnias policíacas de la prensa franquista Los campesino trigueros con la soga al cuello El pretendido "Internacionalismo proletario" de Carrillo ¡No olvidemos jamás los crímenes del Franquismo! El programa del frente, bandera de movilización y de lucha La valiosa experiencia de los comités de fábruda en Euzkadi
Spectacle, spectrality, and the everyday : settler colonialism, Aboriginal alterity, and inclusion in Vancouver
Creators: name: Baloy, Natalie J. K.
Publisher: name: University of British Columbia
Year: 2014

description: This dissertation examines everyday social relations in the settler colonial city of Vancouver. Its contemporary ethnographic focus updates and reworks historical and political analyses that currently comprise the growing body of scholarship on settler colonialism as a distinct socio-political phenomenon. I investigate how non-Aboriginal residents construct and relate to Aboriginal alterity. The study is situated in three ethnographic sites, united by their emphasis on “including” the Aboriginal Other: (1) the 2010 Winter Olympics, which featured high-profile forms of Aboriginal participation (and protest); (2) the Mount Pleasant public library branch, which displays a prominent Aboriginal collection and whose staff works closely with the urban Aboriginal community; and (3) BladeRunners, an inner-city construction program that trains and places Aboriginal street youth in the local construction industry. Participants in this research include non-Aboriginal “inclusion workers” as well as non-Aboriginal patrons at the library, construction workers on a BladeRunners construction placement site, and audiences at Aboriginal Olympic events. I explore how my participants’ affective knowledges shape and are shaped by spatial and racializing processes in the emergent settler colonial present. My analysis reveals how everyday encounters with Aboriginal alterity are produced and experienced through spectacular representations and spectral (or haunting) Aboriginal presence, absence, and possibility in the city. In relation to inclusion initiatives, I argue that discourses of Aboriginal inclusion work to manage and circumscribe Aboriginal difference even as they enable interaction across difference. Ultimately, I suggest that social projects aimed at addressing Aboriginal marginality and recognition must actively engage with and critique non-Aboriginal ideologies, discourses, and practices around racialization, meaning-making, and settler privilege, while working within and against a spectacular and spectralized milieu. This research demonstrates how critical ethnography can be leveraged productively to analyse settler participation in the reproduction and transformation of the colonial project.
Nuclear Star-Forming Ring of the Milky Way: Simulations
Creators: name: Kim, Sungsoo S.
name: Saitoh, Takayuki R.
name: Jeon, Myoungwon
name: Figer, Donald F.
name: Merritt, David
name: Wada, Keiichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present hydrodynamic simulations of gas clouds in the central kpc region of the Milky Way that is modeled with a three-dimensional bar potential. Our simulations consider realistic gas cooling and heating, star formation, and supernova feedback. A ring of dense gas clouds forms as a result of X1-X2 orbit transfer, and our potential model results in a ring radius of ~200 pc, which coincides with the extraordinary reservoir of dense molecular clouds in the inner bulge, the Central Molecular Zone (CMZ). The gas clouds accumulated in the CMZ can reach high enough densities to form stars, and with an appropriate choice of simulation parameters, we successfully reproduce the observed gas mass and the star formation rate (SFR) in the CMZ, ~2x10^7 Msun and ~0.1 Msun/yr. Star formation in our simulations takes place mostly in the outermost X2 orbits, and the SFR per unit surface area outside the CMZ is much lower. These facts suggest that the inner Galactic bulge may harbor a mild version of the nuclear star-forming rings seen in some external disk galaxies. Furthermore, from the relatively small size of the Milky Way's nuclear bulge, which is thought to be a result of sustained star formation in the CMZ, we infer that the Galactic inner bulge probably had a shallower density profile or stronger bar elongation in the past.
description: Accepted for publication in the Astrophysical Journal Letters, vol. 734, 2011
Study of scalar meson a_0(1450) from B \to a_0(1450)K^* Decays
Creators: name: Zhang, Zhi-Qing
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the two-quark model supposition for the meson $a_0(1450)$, which can be viewed as either the first excited state (scenario I) or the lowest lying state (scenario II), the branching ratios and the direct CP-violating asymmetries for decays $B^-\to a^{0}_0(1450)K^{*-}, a^{-}_0(1450)K^{*0}$ and $\bar B^0\to a^{+}_0(1450)K^{*-}, a^{0}_0(1450)\bar K^{*0}$ are studied by employing the perturbative QCD factorization approach. We find the following results: (a) For the decays $B^-\to a^{-}_0(1450)K^{*0}, \bar B^0\to a^{+}_0(1450)K^{*-}, a^{0}_0(1450)\bar K^{*0}$, their branching ratios in scenario II are larger than those in scenario I about one order. So it is easy for the experiments to differentiate between the scenario I and II for the meson $a_0(1450)$. (b)For the decay $B^-\to a^{0}_0(1450)K^{*-}$, due to not receiving the enhancement from the $K^*-$emission factorizable diagrams, its penguin operator contributions are the smallest in scenario II, which makes its branching ratio drop into the order of $10^{-6}$. Even so, its branching ratio in scenario II is still larger than that in scenario I about 2.5 times. (c) Even though our predictions are much larger than those from the QCD factorization results, they are still consistent with each other within the large theoretical errors from the annihilation diagrams. (d) We predict the direct CP- violating asymmetry of the decay $B^-\to a^{-}_0(1450)K^{*0}$ is small and only a few percent.
description: 15 Pages, 5 Figures
BSM Higgs searches in the gluon fusion process pp -> h +jet -> tau^+ tau^- + jet at the LHC
Creators: name: Belyaev, Alexander
name: Guedes, Renato
name: Moretti, Stefano
name: Santos, Rui
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The mass of the Standard Model (SM) Higgs boson was constrained by the Large Electron-Positron (LEP) collider to be above 114.4 GeV. Simple extensions of the scalar sector like adding singlets and/or doublets allow the lightest Higgs to be much lighter via a reduction in its coupling to gauge bosons. Such a light Higgs could have evaded the LEP searches but could be detected at the Large Hadron Collider (LHC) in the process pp -> h j -> tau^+ tau^- j, where j is a resolved jet. We conclude that in some Beyond the Standard Model (BSM) extensions of the scalar sector, a very light Higgs state could be detected at the 14 TeV LHC with early data.
description: 5 pages, 4 figures
Single- and few-electron dynamic quantum dots in a perpendicular magnetic field
Creators: name: Wright, S. J.
name: Thorn, A. L.
name: Blumenthal, M. D.
name: Giblin, S. P.
name: Pepper, M.
name: Janssen, T. J. B. M.
name: Kataoka, M.
name: Fletcher, J. D.
name: Jones, G. A. C.
name: Nicoll, C. A.
name: Gumbs, Godfrey
name: Ritchie, D. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present experimental studies of the current pumped through a dynamic quantum dot over a wide range of magnetic fields. At low fields we observe repeatable structure indicating increased confinement of the electrons in the dynamic dot. At higher fields (B>3T), we observe structure which changes markedly from device to device suggesting that in this regime the transport is sensitive to local disorder. The results are significant for the development of dynamic quantum dot pumps as quantum standards of electrical current.
description: 5 pages, 4 figures, submitted to J. Appl. Phys. as an invited paper for ICPS-30, 25th-30th July, Seoul, SK
Vanguardia Obrera, 44, año V
Creators: name: PCE(ML)
Publisher: name: Zenodo
Year: 1969
Subjects: vanguardia obrera
PCE(ML)

description: Órgano de expresión del Partido Comunista de España (M-L). Artículos principales que contiene: Nuevo ímpetu revolucionario y antiyanqui por toda España Carrillo, recalcitrante embellecedor de la "liberación" franquista Las delirantes relaciones sovieto-franquistas Por un verdadero frente democrático nacional revolucionario Movilicemos y organicemos al campesinado revolucionario La lucha en torno a los convenios colectivos Declaración conjunta del PCI(m-l) y del PCE(m-l)