cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tareas y problemáticas feminizadas en la búsqueda de personas desaparecidas. La experiencia de la Colectiva de Intervención Ante las Violencias
Creators: name: Sandoval Ramos, Belén
name: Carlini Comerci, Silvia Laura
name: Perosino, María Celeste
name: Micheli, Daniela
name: Barreiro, Amelia
name: Rabuffetti, Nadia
name: Gutiérrez, Andrea
name: Cels Manavella, Evelyn
Publisher: name: AAPRA
Year: 2023
Subjects: violencias
desapariciones
investigación
antropología forense
interdisciplinar

description: La Colectiva de Intervención Ante las Violencias (CIAV) es un grupo interdisciplinar feminista surgido en el año 2012 como consecuencia de dos problemáticas con grandes déficits de investigación: las violencias letales y la desaparición de personas. Estas nuevas violencias tienen aristas disímiles que pueden analizarse, por ejemplo, desde la perspectiva de género, los procesos migratorios y los entramados territoriales. Conjuntamente, estas problemáticas se hallan entrelazadas con múltiples factores y contextos que requieren nuevas modalidades de trabajo e investigación. Por ello, en este trabajo expondremos nuestro recorrido teórico y práctico, poniendo especial énfasis en la metodología y estrategias desarrolladas para abordar los diferentes casos a las que somos convocadas. Además, mencionaremos cómo, en base a nuestra experiencia, pretendemos desafiar los modelos tradicionales de investigación en antropología forense proponiendo nuevas formas de abordar los casos legales. Finalmente, reseñamos algunos casos en los que hemos intervenido, aportando información detallada sobre las distintas estrategias utilizadas, y también presentamos nuevas líneas de investigación y proyectos de futuro.
Quantum Phase Interference and Neel-Vector Tunneling in Antiferromagnetic Molecular Wheels
Creators: name: Waldmann, O.
name: Stamatatos, T. C.
name: Christou, G.
name: Güdel, H. U.
name: Sheikin, I.
name: Mutka, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The antiferromagnetic molecular wheel Fe18 of eighteen exchange-coupled Fe(III) ions has been studied by measurements of the magnetic torque, the magnetization, and the inelastic neutron scattering spectra. The combined data show that the low-temperature magnetism of Fe18 is very accurately described by the Neel-vector tunneling (NVT) scenario, as unfolded by semiclassical theory. In addition, the magnetic torque as a function of applied field exhibits oscillations that reflect the oscillations in the NVT tunnel splitting with field due to quantum phase interference.
description: 5 pages, 4 figures, REVTEX4, to appear in PRL
Additional file 1 of Fetal hypoxia results in sex- and cell type-specific alterations in neonatal transcription in rat oligodendrocyte precursor cells, microglia, neurons, and oligodendrocytes
Creators: name: Kremsky, Isaac
name: Ma, Qingyi
name: Li, Bo
name: Dasgupta, Chiranjib
name: Chen, Xin
name: Ali, Samir
name: Angeloni, Shawnee
name: Wang, Charles
name: Zhang, Lubo
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Quality control of RNA-seq data. Figure S2. Related to Fig. 2. Figure S3. Related to Fig. 3. Figure S4. Related to Fig. 4.
Quantum Markov fields on graphs
Creators: name: Accardi, Luigi
name: Ohno, Hiromichi
name: Mukhamedov, Farrukh
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 46L53, 60J99, 46L60, 60G50, 82B10, 81Q10, 94A17

description: We introduce generalized quantum Markov states and generalized d-Markov chains which extend the notion quantum Markov chains on spin systems to that on $C^*$-algebras defined by general graphs. As examples of generalized d-Markov chains, we construct the entangled Markov fields on tree graphs. The concrete examples of generalized d-Markov chains on Cayley trees are also investigated.
description: 23 pages, 1 figure. accepted to "Infinite Dimensional Anal. Quantum Probability & Related Topics"
Helium plasma jet : construction and plasma properties.
Creators: name: Morris, Robert Norton
Publisher: name: University of British Columbia
Year: 2011

description: A model - of which a similar type was found applicable to an argon plasma jet - is developed and applied to a laminar helium jet operated at atmospheric pressure with a current of 185 amps. The results are used to investigate the equilibrium properties of the plasma. It was found that the helium plasma was not in a state of Local Thermodynamic Equilibrium but that the neutral atoms were considerably colder than the electrons. (Te ≈ 17,000°K; To≈5,700°K) Instructions are given in the thesis on the construction, operation and properties of a d.c. plasma jet.
Impact of inter-individual and inter-group variation on language evolution
Creators: name: Josserand, Mathilde
Publisher: name: Zenodo
Year: 2023

description: Languages diversity is influenced by many factors, including cultural and environmental ones, as well as variation in anatomy and physiology. While recent research has focused on variation in the vocal tract and its impact on language sound systems, it remains unclear whether this applies to other aspects of language, such as language lexicons. Therefore, the first part of this PhD research focuses on the influence of perceptual variation on language lexicons, particularly in the color domain. Specifically, we explore the hypothesis that UV incidence, through its impact on eye physiology, affects the perception of blue colors, potentially explaining why populations with high UV exposure often lack a specific term for the color blue. Two methods are employed: a cross-cultural statistical analysis and a natural (quasi-)experiment comparing color perception between participants from France and the Himba ethnic group. The findings suggest that color lexicons are shaped by a combination of environmental and cultural factors, and variation in color perception may play a role in accounting for the observed diversity. While these patterns of variation manifest at the group level, our analyses also revealed substantial variation among individuals within the same group, prompting us to ponder the extent to which language adapts to the idiosyncrasies of its speakers. Thus, the second part of this PhD aims to understand the precise mechanisms by which inter-individual variation affects language evolution. First, we conducted a laboratory experiment to study language evolution in groups of four individuals, with one participant deliberately biased. Second, we used Bayesian agent-based models to explore how a shared language emerges in heterogenous groups and how network structure contributes to language variability. The results suggest that the emergent shared language of the whole community is influenced by the language idiosyncrasies carried by a minority of biased agents, and put forward the crucial role of network structure in shaping inter-individual variation in language.Overall, this PhD research highlights that variation in languages can only be understood in the context of their cultural, biological, and physical environments and sheds light on the processes through which inter-individual and inter-group variation affect language evolution.
Prospects for measuring the electric dipole moment of the electron using electrically trapped polar molecules
Creators: name: Tarbutt, M. R.
name: Hudson, J. J.
name: Sauer, B. E.
name: Hinds, E. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Heavy polar molecules can be used to measure the electric dipole moment of the electron, which is a sensitive probe of physics beyond the Standard Model. The value is determined by measuring the precession of the molecule's spin in a plane perpendicular to an applied electric field. The longer this precession evolves coherently, the higher the precision of the measurement. For molecules in a trap, this coherence time could be very long indeed. We evaluate the sensitivity of an experiment where neutral molecules are trapped electrically, and compare this to an equivalent measurement in a molecular beam. We consider the use of a Stark decelerator to load the trap from a supersonic source, and calculate the deceleration efficiency for YbF molecules in both strong-field seeking and weak-field seeking states. With a 1s holding time in the trap, the statistical sensitivity could be ten times higher than it is in the beam experiment, and this could improve by a further factor of five if the trap can be loaded from a source of larger emittance. We study some effects due to field inhomogeneity in the trap and find that rotation of the electric field direction, leading to an inhomogeneous geometric phase shift, is the primary obstacle to a sensitive trap-based measurement.
description: 22 pages, 7 figures, prepared for Faraday Discussion 142
Discontinuous Euler instability in nanoelectromechanical systems
Creators: name: Weick, Guillaume
name: Pistolesi, Fabio
name: Mariani, Eros
name: von Oppen, Felix
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate nanoelectromechanical systems near mechanical instabilities. We show that quite generally, the interaction between the electronic and the vibronic degrees of freedom can be accounted for essentially exactly when the instability is continuous. We apply our general framework to the Euler buckling instability and find that the interaction between electronic and vibronic degrees of freedom qualitatively affects the mechanical instability, turning it into a discontinuous one in close analogy with tricritical points in the Landau theory of phase transitions.
description: 4+ pages, 3 figures, published version
Thick gas discs in faint dwarf galaxies
Creators: name: Roychowdhury, Sambit
name: Chengalur, Jayaram N.
name: Begum, Ayesha
name: Karachentsev, Igor D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We determine the intrinsic axial ratio distribution of the 'gas' disks of extremely faint M_B > -14.5 dwarf irregular galaxies. We start with the measured (beam corrected) distribution of apparent axial ratios in the HI 21cm images of dwarf irregular galaxies observed as part of the Faint Irregular Galaxy GMRT Survey (FIGGS). Assuming that the disks can be approximated as oblate spheroids, the intrinsic axial ratio distribution can be obtained from the observed apparent axial ratio distribution. We use a couple of methods to do this, and our final results are based on using Lucy's deconvolution algorithm. This method is constrained to produce physically plausible distributions, and also has the added advantage of allowing for observational errors to be accounted for. While one might a priori expect that gas disks would be thin (because collisions between gas clouds would cause them to quickly settle down to a thin disk), we find that the HI disks of faint dwarf irregulars are quite thick, with mean axial ratio ~ 0.6. While this is substantially larger than the typical value of ~ 0.2 for the 'stellar' disks of large spiral galaxies, it is consistent with the much larger ratio of velocity dispersion to rotational velocity (sigma/v_c) in dwarf galaxy HI disks as compared to that in spiral galaxies. Our findings have implications for studies of the mass distribution in and the Tully - Fisher relation for faint dwarf irregular galaxies, where it is often assumed that the gas is in a thin disk.
description: 5 pages, 4 figures. Minor changes in revised version. The definitive version is available at http://www.blackwell-synergy.com.
Calculated cross-sections of pion production by 450-mev protons on various nuclei.
Creators: name: McMillin, Douglas John
Publisher: name: University of British Columbia
Year: 2011

description: We construct a model to explain the production of pions in the bombardment by protons of various nuclei and we use the model to calculate relative cross-sections for the process. The model assumes that the incident proton interacts with the target nucleons individually and that the proton-nucleon cross-section can be used as a free parameter. The model accounts for many important nuclear effects, some for the first time in explaining the A-dependence of the pion yield. The effects included are those due to proton and pion absorption, to the background nuclear potentials and to the struck-nucleon momentum and density distributions. We compute differential cross-sections in several special cases and compare them with experimental data at 450 MeV. Agreement is only moderate, but it is as good as any previously obtained and, unlike the earlier results, it does not depend on the assumption of an absorbing neutron blanket. Our agreement depends instead on the use of a modern nuclear radius and a reasonable treatment of pion absorption. In this respect our results confirm what earlier workers had assumed, that absorption is the dominant factor controlling the proton-nucleus production of pions. Also important is the proton-nucleon production rate, a reasonable value of which we assume. Potential effects are important because the basic production rate and pion absorption are both very energy dependent. The effects of struck-nucleon momentum and density distribution, as we calculate them, are small at the energy considered.
La praxis arqueológica desde el hacer femenino. Una experiencia del trabajo de campo realizado en Ibatín
Creators: name: Luna, Inés Agustina
name: Argañaras, Guadalupe
Publisher: name: AAPRA
Year: 2023
Subjects: arqueología feminista
práctica arqueológica
metodología
Ibatín
Tucumán

description: El siguiente trabajo expositivo refiere a las experiencias de una campaña arqueológica realizada a principios del año 2021 en el sitio histórico de Ibatín, al sur de la provincia de Tucumán y que tuvo como particularidad la participación exclusiva de mujeres. En una suerte de etnografía se propone contar la intervención de un grupo de jóvenes mujeres y cómo se desarrolló la praxis arqueológica, analizando las condiciones de la misma. Se propone un análisis con perspectiva de género sobre las prácticas arqueológicas llevadas a cabo en la provincia y de las cuales fuimos partícipes como estudiantes. El trabajo se inserta de esta manera dentro de los ejes sobre ‘La praxis arqueológica como mujeres o disidencias’ y ‘Arqueología y políticas académicas’ propuestas por el encuentro denominado El pasado nos convoca III. Mujeres arqueólogas sudamericanas en diálogo llevado a cabo en la provincia de Córdoba en octubre del año 2022.
Additional file 1 of Racial microaggressions and interculturality in remote Central Australian Aboriginal healthcare
Creators: name: Wicks, Mary
name: Hampshire, Christine
name: Campbell, Jeannie
name: Maple-Brown, Louise
name: Kirkham, Renae
Publisher: name: figshare
Year: 2023
Subjects: Biotechnology
Cancer
Science Policy

description: Supplementary Material 1
Additional file 1 of Role of short-wavelength blue light in the formation of cataracts and the expression of caspase-1, caspase-11, Gasdermin D in rat lens epithelial cells: insights into a novel pathogenic mmechanism of cataracts
Creators: name: Wang, Yamin
name: Zhang, Min
name: Sun, Ying
name: Wang, Xiaohui
name: Song, Zhaowei
name: Li, Huazhang
name: Liu, Kexin
name: Li, Zhijian
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer

description: Additional file 1.
Qubit protection in nuclear-spin quantum dot memories
Creators: name: Kurucz, Z.
name: Sørensen, M. W.
name: Taylor, J. M.
name: Lukin, M. D.
name: Fleischhauer, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a mechanism to protect quantum information stored in an ensemble of nuclear spins in a semiconductor quantum dot. When the dot is charged the nuclei interact with the spin of the excess electron through the hyperfine coupling. If this coupling is made off-resonant it leads to an energy gap between the collective storage states and all other states. We show that the energy gap protects the quantum memory from local spin-flip and spin-dephasing noise. Effects of non-perfect initial spin polarization and inhomogeneous hyperfine coupling are discussed.
description: 5 pages, 3 figures
Additional file 1 of Prevalence and sociodemographic correlates of food insecurity among post-secondary students and non-students of similar age in Canada
Creators: name: Wang, Yichun
name: St-Germain, Andrée-Anne Fafard
name: Tarasuk, Valerie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Supplementary Material 1
Back-engineering of spiking neural networks parameters
Creators: name: Rostro, H.
name: Cessac, B.
name: Vasquez, J. C.
name: Vieville, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We consider the deterministic evolution of a time-discretized spiking network of neurons with connection weights having delays, modeled as a discretized neural network of the generalized integrate and fire (gIF) type. The purpose is to study a class of algorithmic methods allowing to calculate the proper parameters to reproduce exactly a given spike train generated by an hidden (unknown) neural network. This standard problem is known as NP-hard when delays are to be calculated. We propose here a reformulation, now expressed as a Linear-Programming (LP) problem, thus allowing to provide an efficient resolution. This allows us to "back-engineer" a neural network, i.e. to find out, given a set of initial conditions, which parameters (i.e., connection weights in this case), allow to simulate the network spike dynamics. More precisely we make explicit the fact that the back-engineering of a spike train, is a Linear (L) problem if the membrane potentials are observed and a LP problem if only spike times are observed, with a gIF model. Numerical robustness is discussed. We also explain how it is the use of a generalized IF neuron model instead of a leaky IF model that allows us to derive this algorithm. Furthermore, we point out how the L or LP adjustment mechanism is local to each unit and has the same structure as an "Hebbian" rule. A step further, this paradigm is easily generalizable to the design of input-output spike train transformations. This means that we have a practical method to "program" a spiking network, i.e. find a set of parameters allowing us to exactly reproduce the network output, given an input. Numerical verifications and illustrations are provided.
description: 30 pages, 17 figures, submitted
New SETI Sky Surveys for Radio Pulses
Creators: name: Siemion, Andrew
name: Von Korff, Joshua
name: McMahon, Peter
name: Korpela, Eric
name: Werthimer, Dan
name: Anderson, David
name: Bower, Geoff
name: Cobb, Jeff
name: Foster, Griffin
name: Lebofsky, Matt
name: van Leeuwen, Joeri
name: Wagner, Mark
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Berkeley conducts 7 SETI programs at IR, visible and radio wavelengths. Here we review two of the newest efforts, Astropulse and Fly's Eye. A variety of possible sources of microsecond to millisecond radio pulses have been suggested in the last several decades, among them such exotic events as evaporating primordial black holes, hyper-flares from neutron stars, emissions from cosmic strings or perhaps extraterrestrial civilizations, but to-date few searches have been conducted capable of detecting them. We are carrying out two searches in hopes of finding and characterizing these mu-s to ms time scale dispersed radio pulses. These two observing programs are orthogonal in search space; the Allen Telescope Array's (ATA) "Fly's Eye" experiment observes a 100 square degree field by pointing each 6m ATA antenna in a different direction; by contrast, the Astropulse sky survey at Arecibo is extremely sensitive but has 1/3,000 of the instantaneous sky coverage. Astropulse's multibeam data is transferred via the internet to the computers of millions of volunteers. These computers perform a coherent de-dispersion analysis faster than the fastest available supercomputers and allow us to resolve pulses as short as 400 ns. Overall, the Astropulse survey will be 30 times more sensitive than the best previous searches. Analysis of results from Astropulse is at a very early stage. The Fly's Eye was successfully installed at the ATA in December of 2007, and to-date approximately 450 hours of observation has been performed. We have detected three pulsars and six giant pulses from the Crab pulsar in our diagnostic pointing data. We have not yet detected any other convincing bursts of astronomical origin in our survey data. (Abridged)
description: 9 pages, 6 figures, Accepted to Acta Astronautica "Special Issue: Life Signatures"
Lost in translation – challenges of tailoring VIVO to the needs of the German scholarly landscape
Creators: name: Hauschke, Christian
name: Barber, Martin
name: Kasprzik, Anna
name: Walther, Tatiana
Publisher: name: Hannover : Technische Informationsbibliothek
Year: 2017
Subjects: subject: vivo
subject: vivo2017
subject: vivo17
subject: 020

description: Every time a research information system is implemented in an academic institution there is a need to adjust the software to local needs. If a system has its roots in a different country, the adjustments can be more comprehensive. In this case, the VIVO ontology and a lot of the underlying assumptions, which are based on the realities of the US scholarly landscape, must be “tailored” to be able to depict “German” academic reality. The differences concern both the meaning of the translated terms and the usage of the terms in the common parlance. The prominent examples for such kind of terms are grants and faculties. ‘Grant’ is an essential concept to describe the funding of research projects. Universities are divided into colleges and schools. The concepts for the description of research funding in Germany are completely different, and universities are usually divided into ‘Fakultäten’ and ‘Lehrstühle’. Furthermore, terms like ‘faculty’, or ‘grant’ are not being used consistently in German academic institutions. On the other hand some concepts which are important for representing the German academic landscape are missing in the VIVO Ontology. There are ongoing efforts to add missing classes and properties. The extension of the VIVO ontology with concepts as universal and interoperable as possible, and which are typical for Germany also requires broad agreement between German VIVO applicants. Due to the above mentioned issues, it was necessary, that, actors from different German institutions build a network to collaborate on these problems. This collaboration takes place in a number of working groups, calls and on GitHub. It has been resulted in a general ontology extension (VIVO-DE) and several drafts of the translation of the VIVO Ontology. Another common task is the translation of the VIVO application files into German and the constant updating of this translation with every new VIVO version. The 'Kerndatensatz Forschung' (The Research Core Dataset - a data model for research reporting) as an extension of the VIVO Ontology is one of the current tasks, which is collaborated on as well. This talk concerns the challenges, efforts and tools of the German VIVO community to address the described issues.
Categorification of a linear algebra identity and factorization of Serre functors
Creators: name: Ladkani, Sefi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18E30, 16E20, 18F30, 16G10, 15A63

description: We provide a categorical interpretation of a well-known identity from linear algebra as an isomorphism of certain functors between triangulated categories arising from finite dimensional algebras. As a consequence, we deduce that the Serre functor of a finite dimensional triangular algebra A has always a lift, up to shift, to a product of suitably defined reflection functors in the category of perfect complexes over the trivial extension algebra of A.
description: 18 pages; Minor changes, references added, new Section 2.7
Current constraints on the cosmic growth history
Creators: name: Bean, Rachel
name: Tangmatitham, Matipon
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present constraints on the cosmic growth history with recent cosmological data, allowing for deviations from Lambda CDM as might arise if cosmic acceleration is due to modifications to GR or inhomogeneous dark energy. We combine measures of the cosmic expansion history, from Type 1a supernovae, baryon acoustic oscillations and the CMB, with constraints on the growth of structure from recent galaxy, CMB and weak lensing surveys along with ISW-galaxy cross-correlations. Deviations from Lambda CDM are parameterized by phenomenological modifications to the Poisson equation and the relationship between the two Newtonian potentials. We find modifications that are present at the time the CMB is formed are tightly constrained through their impact on the well-measured CMB acoustic peaks. By contrast, constraints on late-time modifications to the growth history, as might arise if modifications are related to the onset of cosmic acceleration, are far weaker, but remain consistent with Lambda CDM at the 95% confidence level. For these late-time modifications we find that differences in the evolution on large and small scales could provide an interesting signature by which to search for modified growth histories with future wide angular coverage, large scale structure surveys.
description: 14 pages, 10 figures. Replaced with version accepted by Physical Review D
Cuidar a quienes cuidan
Creators: name: Eguía, Luciana
name: Gordillo, Inés
name: Prieto, Carolina
name: Milani, Liliana
Publisher: name: AAPRA
Year: 2023
Subjects: mujeres
tareas de cuidado
reuniones científicas
subsidios
arqueología

description: En esta nota presentamos los resultados de una encuesta online dirigida principalmente a les asistentes del XXI Congreso Nacional de Arqueología Argentina que se encuentran a cargo de las tareas de cuidado de otras personas. Ante el reciente lanzamiento del Ministerio de Ciencia, Tecnología e Innovación (MINCyT) del subsidio por tareas de cuidado durante reuniones científicas, quisimos conocer si habían utilizado esta herramienta o no y cuál fue su impacto en les participantes. Sin bien presentó inconvenientes, como falta de información y montos bajos, fue visto por la mayoría como una iniciativa beneficiosa, para la igualdad y reconocimiento de las tareas de cuidado, y auspiciosa para el futuro.
Measurement of some relative transition probabilities in singly ionized argon
Creators: name: Campbell, Hugh Daniel
Publisher: name: University of British Columbia
Year: 2011

description: Relative transition probabilities were measured for several transitions in the visible ArII spectrum. An argon-nitrogen pulsed arc of duration 90 μsec, with electron densities of 2.3 x 10¹⁷ cm⁻³ and electron temperature of 2.6 ev, was used as a source of radiation. Measurements were performed with photographic diagnostics and a rotating-mirror shutter system. The fourteen values of relative transition probabilities obtained agreed reasonably well with previous measurements.
Pro-p groups and towers of rational homology spheres
Creators: name: Boston, Nigel
name: Ellenberg, Jordan S
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 20E18, 22E40

description: In the preceding paper, Calegari and Dunfield exhibit a sequence of hyperbolic 3-manifolds which have increasing injectivity radius, and which, subject to some conjectures in number theory, are rational homology spheres. We prove unconditionally that these manifolds are rational homology spheres, and give a sufficient condition for a tower of hyperbolic 3-manifolds to have first Betti number 0 at each level. The methods involved are purely pro-p group theoretical.
description: This is the version published by Geometry & Topology on 2 April 2006
Additional file 2 of Prevalence and sociodemographic correlates of food insecurity among post-secondary students and non-students of similar age in Canada
Creators: name: Wang, Yichun
name: St-Germain, Andrée-Anne Fafard
name: Tarasuk, Valerie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Supplementary Material 2
Studies of Li2Fe0.9M0.1SO Antiperovskite Materials for Lithium–Ion Batteries: The Role of Partial Fe2+ to M2+ Substitution
Creators: name: Gorbunov, Mikhail V.
name: Carocci, Salvatore
name: Gonzalez Martinez, Ignacio G.
name: Baran, Volodymyr
name: Mikhailova, Daria
Publisher: name: Lausanne : Frontiers Media
Year: 2021
Subjects: subject: chemical flexibility
subject: redox activity
subject: non-linear structure change
subject: cathode materials
subject: high specific capacity
subject: 333,7

description: Cubic Li2Fe0.9M0.1SO antiperovskites with M–Co2+, or Mn2+ were successfully synthesized by a solid-state technique, and studied as cathode materials in Li-batteries. The influence of the Co, and Mn cation substitution of Fe in Li2FeSO on the resulting electrochemical performance was evaluated by galvanostatic cycling, while the reaction mechanism was explored by applying operando X-ray absorption and X-ray diffraction techniques using synchrotron radiation facilities. Even 10% Fe-substitution by these metals completely changes the structural behavior of the material upon Li-removal and insertion, in comparison to Li2FeSO. The Co-substitution significantly improves cyclability of the material at high current densities in comparison to the non-substituted material, reaching a specific capacity of 250 mAh/g at 1C current density. In contrast, the Mn-substitution leads to deterioration of the electrochemical performance because of the impeded kinetics, which may be caused by the appearance of a second isostructural phase due to formation of Jahn-Teller Mn3+ cations upon delithiation.
Representations of Stream Processors Using Nested Fixed Points
Creators: name: Ghani, Neil
name: Hancock, Peter
name: Pattinson, Dirk
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: E.1; E.2; F.2.1; F.2.2

description: We define representations of continuous functions on infinite streams of discrete values, both in the case of discrete-valued functions, and in the case of stream-valued functions. We define also an operation on the representations of two continuous functions between streams that yields a representation of their composite. In the case of discrete-valued functions, the representatives are well-founded (finite-path) trees of a certain kind. The underlying idea can be traced back to Brouwer's justification of bar-induction, or to Kreisel and Troelstra's elimination of choice-sequences. In the case of stream-valued functions, the representatives are non-wellfounded trees pieced together in a coinductive fashion from well-founded trees. The definition requires an alternating fixpoint construction of some ubiquity.
Single spin asymmetries in l p --> h X processes: a test of factorization
Creators: name: Anselmino, M.
name: Boglione, M.
name: D'Alesio, U.
name: Melis, S.
name: Murgia, F.
name: Prokudin, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Predictions for the transverse single spin asymmetry (SSA), A_N, are given for the inclusive processes l p(transv. pol.) --> h X and l p(transv. pol.) --> jet + X, which could be measured in operating or future experiments. These estimates are based on the Sivers distributions and the Collins fragmentation functions which fit the azimuthal asymmetries measured in semi-inclusive deep inelastic scattering (SIDIS) processes (l p(transv. pol.) --> l' h X). The factorization in terms of transverse momentum dependent distribution and fragmentation functions (TMD factorization) - which supplies the theoretical framework in which SIDIS azimuthal asymmetries are analyzed - is assumed to hold also for the l p --> h X inclusive process at large P_T. A measurement of A_N would then provide a direct test of the validity of the TMD factorization in this case and would have important consequences for the study and understanding of SSAs in p p(transv. pol.) --> h X processes.
description: RevTeX4, 16 pages, 13 ps figures; v2: a short paragraph and 3 references added in the introduction; matches the version published in Phys. Rev. D
Renormalization of tensor-network states
Creators: name: Zhao, H. H.
name: Xie, Z. Y.
name: Chen, Q. N.
name: Wei, Z. C.
name: Cai, J. W.
name: Xiang, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have discussed the tensor-network representation of classical statistical or interacting quantum lattice models, and given a comprehensive introduction to the numerical methods we recently proposed for studying the tensor-network states/models in two dimensions. A second renormalization scheme is introduced to take into account the environment contribution in the calculation of the partition function of classical tensor network models or the expectation values of quantum tensor network states. It improves significantly the accuracy of the coarse grained tensor renormalization group method. In the study of the quantum tensor-network states, we point out that the renormalization effect of the environment can be efficiently and accurately described by the bond vector. This, combined with the imaginary time evolution of the wavefunction, provides an accurate projection method to determine the tensor-network wavfunction. It reduces significantly the truncation error and enable a tensor-network state with a large bond dimension, which is difficult to be accessed by other methods, to be accurately determined.
description: 18 pages 23 figures, minor changes, references added
Quantum Isometry Group for Spectral Triples with Real Structure
Creators: name: Goswami, Debashish
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Given a spectral triple of compact type with a real structure in the sense of [Dabrowski L., J. Geom. Phys. 56 (2006), 86-107] (which is a modification of Connes' original definition to accommodate examples coming from quantum group theory) and references therein, we prove that there is always a universal object in the category of compact quantum group acting by orientation preserving isometries (in the sense of [Bhowmick J., Goswami D., J. Funct. Anal. 257 (2009), 2530-2572]) and also preserving the real structure of the spectral triple. This gives a natural definition of quantum isometry group in the context of real spectral triples without fixing a choice of 'volume form' as in [Bhowmick J., Goswami D., J. Funct. Anal. 257 (2009), 2530-2572].
MPEC 2025-G20 : 2023 PF5
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: 2023 PF5

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.
Paying it back: does community service activities promote desistance in prisoners?
Creators: name: Graham, Steve
Publisher: name: University Of Tasmania
Year: 2023

description: The prison as an institution in society is a complex and multi layered set of social relations confined to specific geographical places. Working with prisoners in these circumstances is a necessary and important task as they are nearly all released back into society. This highlights not only issues of the causes of crime and the nature of punishment, but also the importance of understanding and supporting the processes of desistance (of ceasing offending), pro-social change and community reintegration in that setting. The task of corrections is to maintain the safe order and security of the prison, reduce risk and recidivism, and support pro-social change in prisoners. It is the latter part which is difficult as corrections broadly applies mechanisms of security, but often fails to identify suitable individual solutions. The research explores the use and impact of community service activities as a means of assisting desistance from crime for both minimum enclosed and minimum open prisoners in the custody of Tasmania Prison Service. In the past, community service has been used in many jurisdictions as a low level reintegration mechanism, seeing it as meeting the public or local community needs. This research examines the impact and benefits to individual prisoners, the agencies and stakeholders they are assisting, and assesses the efficacy of community service activities to promote desistance and reintegration. Fourteen different prisoner community service activities are considered here ‚Äö- for the first time in the public domain. The findings of this study show that community service activities have a positive impact at a number of levels: on the staff and volunteers in the agencies, the communities who are recipients and beneficiaries of community service activities and, ultimately, the prisoners who develop their social capital, showcase their existing human capital and access real opportunities and supports for reintegration. This framework is developed in the context of Tasmania, and yet has relevance and utility to be tailored for other jurisdictions.
Additional file 1 of Economic evaluation of a community health worker model for tuberculosis care in Ho Chi Minh City, Viet Nam: a mixed-methods Social Return on Investment Analysis
Creators: name: Quang Vo, Luan Nguyen
name: Forse, Rachel Jeanette
name: Tran, Jacqueline
name: Dam, Thu
name: Driscoll, Jenny
name: Codlin, Andrew James
name: Creswell, Jacob
name: Sidney-Annerstedt, Kristi
name: Van Truong, Vinh
name: Thi Minh, Ha Dang
name: Huu, Lan Nguyen
name: Nguyen, Hoa Binh
name: Nguyen, Nhung Viet
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Computational Biology

description: Supplementary Material 1
A data-driven framework for evolutionary problems in solid mechanics
Creators: name: Poelstra, Klaas
name: Bartel, Thorsten
name: Schweizer, Ben
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: 510

description: Data-driven schemes introduced a new perspective in elasticity: While certain physical principles are regarded as invariable, material models for the relation between strain and stress are replaced by data clouds of admissible pairs of these variables. A data-driven approach is of particular interest for plasticity problems, since the material modeling is even more unclear in this field. Unfortunately, so far, data-driven approaches to evolutionary problems are much less understood. We try to contribute in this area and propose an evolutionary data-driven scheme. We present a first analysis of the scheme regarding existence and data convergence. Encouraging numerical tests are also included.
description: ZAMM : journal of applied mathematics and mechanics = Zeitschrift für angewandte Mathematik und Mechanik;103(3)
Symmetric and asymmetric charge transport in interacting asymmetric quantum impurities
Creators: name: Roy, Dibyendu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study steady-state charge transfer across an interacting resonance-level model connected asymmetrically to two leads. For a linear energy dispersion relation of the leads, we calculate current-voltage characteristics of the model exactly employing the scattering Bethe-Ansatz of Mehta-Andrei and find symmetric transport showing the absence of diode effect. Next we study a lattice version of this model with a nonlinear dispersion for the leads using the Lippmann-Schwinger scattering theory. We find that the inclusion of nonlinearity in the leads' dispersion causes rectification for asymmetric junctions but does not rectify for asymmetric interactions and perfect junctions. The model in the latter case can be mapped into a model of a single noninteracting electron in higher dimensions.
description: 6 pages, 1 figure, revised version
Additional file 2 of Economic evaluation of a community health worker model for tuberculosis care in Ho Chi Minh City, Viet Nam: a mixed-methods Social Return on Investment Analysis
Creators: name: Quang Vo, Luan Nguyen
name: Forse, Rachel Jeanette
name: Tran, Jacqueline
name: Dam, Thu
name: Driscoll, Jenny
name: Codlin, Andrew James
name: Creswell, Jacob
name: Sidney-Annerstedt, Kristi
name: Van Truong, Vinh
name: Thi Minh, Ha Dang
name: Huu, Lan Nguyen
name: Nguyen, Hoa Binh
name: Nguyen, Nhung Viet
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Computational Biology

description: Supplementary Material 2
Two new sesquiterpene glycosides from Dendrobium findleyanum
Creators: name: Cheng, Zhongquan
name: Fan, Weiwei
name: Hu, Jiangmiao
name: Yang, Dan
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: One new ylangene-type sesquiterpene glycoside, findlayanoside C (1), and one new picrotoxane-type sesquiterpene glycoside, findlayanoside D (3), together with five known sesquiterpene glycosides, dendrofindlayanoside C (2), dendronobiloside B (4), dendronobiloside A (5), dendroside F (6) and dendromoniliside D (7), have been isolated from the stems of Dendrobium findleyanum. The structures of compounds 1 and 3 were elucidated by means of extensive spectroscopic analyses, and their absolute configuration were confirmed by electronic circular dichroism (ECD) calculations. Cytotoxic activity assays against SMMC-7721, A-549 and MCF-7 human cancer cell lines revealed IC50 values of 10.12, 12.32 and 14.13 μM for compound 1, and of 9.25, 13.16 and 16.26 μM for compound 2. This study enriches the anti-tumour sesquiterpenoids composition of D. findleyanum.
Miunganiko baina ya wakimbizi na wenyeji kwa ufumbuzi wa ndani - Mafunzo kutoka Tanzania
Creators: name: Ruhundwa, Janemary
name: Msallam, Bishara
name: Wilson, Catherina
name: Isikozlu, Elvan
Publisher: name: Zenodo
Year: 2021
Subjects: (female) urban refugees
agency
mobility
connectivity
Dar es Salaam
Tanzania
Democratic Republic of the Congo

description: Tanzania ina wakimbizi wapatao 264,475 waliosajiliwa; karibia asilimia 85 ya wakimbizi hawa wanaishi katika makambi (UNHCR, 2021) wakati idadi nyingine ya wakimbizi wanaishi nje ya makambi ya wakimbizi, mara nyingi katika maeneo ya mijini. Katika jiji la Dar es Salaam, ambalo lina idadi ya watu wapatao milioni 6.7, idadi rasmi ya wakimbizi wanaoishi katika jiji hilo haifiki 300, wakati makadirio yanaonyesha kwamba kuna wahamiaji wapatao elfu kumi wanaoishi katika mazingira mafumu na wenye hali kama ya wakimbizi.
description: TRAFIG Practice Note No. 8 Translation: Joshua Mshani
Additional file 3 of Economic evaluation of a community health worker model for tuberculosis care in Ho Chi Minh City, Viet Nam: a mixed-methods Social Return on Investment Analysis
Creators: name: Quang Vo, Luan Nguyen
name: Forse, Rachel Jeanette
name: Tran, Jacqueline
name: Dam, Thu
name: Driscoll, Jenny
name: Codlin, Andrew James
name: Creswell, Jacob
name: Sidney-Annerstedt, Kristi
name: Van Truong, Vinh
name: Thi Minh, Ha Dang
name: Huu, Lan Nguyen
name: Nguyen, Hoa Binh
name: Nguyen, Nhung Viet
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Computational Biology

description: Supplementary Material 3
Matter instabilities in general Gauss-Bonnet gravity
Creators: name: De Felice, Antonio
name: Mota, David F.
name: Tsujikawa, Shinji
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the evolution of cosmological perturbations in f(G) gravity, where the Lagrangian is the sum of a Ricci scalar R and an arbitrary function f in terms of a Gauss-Bonnet term G. We derive the equations for perturbations assuming matter to be described by a perfect fluid with a constant equation of state w. We show that density perturbations in perfect fluids exhibit negative instabilities during both the radiation and the matter domination, irrespective of the form of f(G). This growth of perturbations gets stronger on smaller scales, which is difficult to be compatible with the observed galaxy spectrum unless the deviation from General Relativity is very small. Thus f(G) cosmological models are effectively ruled out from this Ultra-Violet instability, even though they can be compatible with the late-time cosmic acceleration and local gravity constraints.
description: 9 pages, 2 figures, published PRD version