cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TiMBA - Timber market model for policy-based analysis : documentation of model structure, data, and parameters
Creators: name: Thünen Institute Forest Sector Modelling (Ed.)
Publisher: name: Unknown
Year: 2025
Subjects: subject: Land Economics/Use
subject: Production Economics
subject: Productivity Analysis
subject: Forest sector analysis
subject: partial equilibrium model
subject: wood product markets
subject: forest-based production
subject: international trade
subject: python
subject: programming; model documentation
subject: policy impact assessment

description: This working paper details the underlying structure of the Timber market Model for policy-Based Analysis - TiMBA - as well as the data and parameters used for modeling. TiMBA is a partial economic equilibrium model for the global forest sector. The market equilibrium is subject to market clearance and constraints, balancing raw materials, product manufacturing, and consumption while limiting international trade (Paul A. Samuelson 1952). The model structure distinguishes three types of roundwood (fuelwood, coniferous and non-coniferous industrial roundwood), two additional raw products for paper production (other fiber pulp and waste paper), two intermediate products (mechanical and chemical wood pulp) and eight finished products (coniferous and non-coniferous sawnwood, veneer sheets and plywood, particle board, fibreboard, newsprint, printing and writing paper, and other paper and paperboard). Except for sawnwood, intermediate and end products are produced from a mix of coniferous and non-coniferous industrial roundwood...
description: DOI:10.3220/253-2025-16
Gibbs Sampling, Exponential Families and Orthogonal Polynomials
Creators: name: Diaconis, Persi
name: Khare, Kshitij
name: Saloff-Coste, Laurent
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We give families of examples where sharp rates of convergence to stationarity of the widely used Gibbs sampler are available. The examples involve standard exponential families and their conjugate priors. In each case, the transition operator is explicitly diagonalizable with classical orthogonal polynomials as eigenfunctions.
description: This paper commented in: [arXiv:0808.3855], [arXiv:0808.3856], [arXiv:0808.3859], [arXiv:0808.3861]. Rejoinder in [arXiv:0808.3864]. Published in at http://dx.doi.org/10.1214/07-STS252 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Surface chemical studies of human platelets
Creators: name: Chiu, Basil
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this project is to investigate the surface properties of platelet discocytes, echinocytes and spherocytes. Normal "non-sticky" discoid shaped platelets (discocytes) can be transformed by ADP into irregularly shaped echinocytes which are "sticky" and aggregate easily in media containing Ca⁺⁺ and fibrinogen. A model is examined here in which an echinocyte attains its "sticky" properties by evagination of a surface-connected canalicular system. Platelets also evaginate this canalicular system upon hypotonic shock, in which case the platelets swell up to form spherocytes. By comparing the properties of the different geometric forms of platelets insight into the nature of "stickiness" was sought. The surface areas of the discocyte and spherocyte measured microscopically were found to be 16.4 and 36.7x10⁻⁸ cm² respectively while that of the echinocyte was estimated to be 23.7x10⁻⁸ cm² using surface chemical analysis. Electron microscopic examination showed that the canalicular system may not be totally evaginated in the echinocyte. Although it was found that the spherocyte could still be agglutinated passively by ristocetin it had completely lost its ability to aggregate. Microelectrophoretic studies revealed 8 and 6 fold increases in the density of Ca⁺⁺ and Mg⁺⁺ binding sites respectively on the echinocyte surface relative to the discocyte. The spherocyte on the other hand had lost most of its Ca binding sites. Electrokinetic analysis of live, fixed and neuraminidase or alkaline phosphatase treated platelets showed major differences in charge as well as amino, sialic acid and phosphate group densities among the discocyte, echinocyte and spherocyte. The evaginated canalicular membrane surfaces of the latter two were also different. SDS-PAGE of platelets radiolabelled via lactoperoxidase iodination, periodate-borohydride tritiation or neuraminidase/galactose oxidase-borohydride tritiation failed to show any difference in the gel patterns between the three platelet forms. No new glycoprotein species appeared during the transformations. The presence of fibrinogen interferes in a concentration related manner with lactoperoxidase iodination of GP-III on the echinocyte surface. An overall picture is presented here showing differences between the surface properties of platelet discocytes, echinocytes and spherocytes. The accumulated evidence suggests that changes in the whole platelet surface occur during activation and the model of a cloistered "sticky" membrane may be an oversimplification.
Crystal field effects in CeIrIn5
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2005
Subjects: cond-mat.str-el

description: In this work, we study crystalline electric field effects in the heavy fermion superconductor CeIrIn5. We observe two regions of broad magnetic response in the inelastic neutron scattering (INS) spectra at 10 K. The first corresponds to the transition between the Γ7 groundstate doublet and the first excited state doublet at 4 meVinterwoven with a broad quasielastic contribution. The second region corresponds to the transition between the ground state and the second excited state doublet at 28meV. The large Lorentzian half-widths of the peaks (∼10 meV) calls into question calculations for the specific heat and magnetic susceptibility that assume sharp crystal field (CF) levels. Consequently, we have calculated the INS spectra and magnetic susceptibility using the Anderson impurity model within the non-crossing approximation including the effects of CF level splitting. © 2005 Taylor & Francis Ltd.
Chydorus reticulatus Daday 1898
Creators: name: Gusakov, Vladimir A.
name: Dien, Tran Duc
name: Tran, Hoan Quoc
name: Thanh, Nguyen Thi Hai
name: Huan, Phan Trong
name: Ha, Vo Thi
name: Dinh, Cu Nguyen
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anomopoda
Chydoridae
Chydorus
Chydorus reticulatus

description: 45. Chydorus reticulatus Daday, 1898
Localities and specimens found: 50 – 1♀; 51 – 7♀, 3♀ ov, 1♀ em, 2j.
Distribution and ecology. This representative of the genus is an Oriental inhabitant (Michael & Hann 1979; Frey 1982c; Smirnov 1996; Korovchinsky 2013; Kotov et al. 2013a; Sharma & Sharma 2017). It is known throughout the region, but in places it is rare and few in number (Idris 1983; Michael & Sharma 1988; Sanoamuang 1998; Maiphae et al. 2005, 2008; Tanaka & Ohtaka 2010; Chatterjee et al. 2013; Kotov et al. 2013b; Ji et al. 2015; Sinev & Yusoff 2015, 2018; Sharma & Sharma 2017; Gogoi et al. 2018; Tiang-nga et al. 2020; Choedchim & Maiphae 2023). In Vietnam, Ch. reticulatus is recorded only in one of the southern provinces (Sinev & Korovchinsky 2013; Sinev & Semenyuk 2021; present study).
The biology and ecology of the species are little studied. As many congeners, Ch. reticulatus seems to be linked to a littoral zone with diverse aquatic vegetation (Sinev & Yusoff 2018). Currently, this species is known from various permanent and temporary water bodies: floodplain and oxbow lakes, ricefields, swamps, ponds, pools, rivers, ditches (Frey 1982c; Idris 1983; Sanoamuang 1998; Sinev & Korovchinsky 2013; Gogoi et al. 2018; Sinev & Semenyuk 2021; Choedchim & Maiphae 2023). We detected several of its specimens only among the roots of floating macrophytes in a floodplain lake (see Appendix 1).
Remarks: In some old literary sources, Ch. reticulatus was indicated under synonymous names Ch. sphaericus var. parvus Daday, 1898 and Ch. eurynotus reticulatus Smirnov, 1971 (Smirnov 1971; Michael & Hann 1979; Frey 1982c; Idris 1983). Probably, in the past, Ch. reticulatus was also often mistaken for young individuals of Ch. ventricosus Daday, 1898 (Michael & Hann 1979).
description: Published as part of Gusakov, Vladimir A., Dien, Tran Duc, Tran, Hoan Quoc, Thanh, Nguyen Thi Hai, Huan, Phan Trong, Ha, Vo Thi & Dinh, Cu Nguyen, 2025, An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam. III. Water fleas (Cladocera), pp. 401-455 in Zootaxa 5613 (3) on pages 424-425, DOI: 10.11646/zootaxa.5613.3.1, http://zenodo.org/record/15216705
Crystalline electric field effects in CeMIn5 (M=Co,Rh,Ir): Superconductivity and the influence of Kondo spin fluctuations
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: cond-mat.str-el

description: We have measured the crystalline electric field (CEF) excitations of the CeMIn5 (M=Co,Rh,Ir) series of heavy fermion superconductors by means of inelastic neutron scattering. In each case, the CEF excitations are considerably broadened, due to Kondo hybridization of the localized f-moments with the conduction electrons. Fits to a phenomenological CEF model reproduce the inelastic neutron scattering spectra and the high-temperature magnetic susceptibility. We also present calculations within the noncrossing approximation (NCA) to the Anderson impurity model, including the effect of CEF level-splitting for the inelastic neutron scattering spectra and the magnetic susceptibility. Our results indicate that the CEF level-splitting in all three materials is similar, and can be thought of as being derived from the cubic parent compound CeIn3. in which an excited state quartet at ∼12 meV is split into two doublets by the lower symmetry of the tetragonal environment of the CeMIn5 materials. The evolution of the superconducting transition temperatures in the different members of CeMIn 5 can be understood as a direct consequence of the strength of the 4f-conduction electron hybridization.
Maximum and comparison principles for convex functions on the Heisenberg group
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: convex functions on the Heisenberg group
null Lagrangian property
maximum principle
oscillation estimate
Monge-Ampere measures
comparison principle

description: We prove estimates, similar in form to the classical Aleksandrov estimates, for a Monge-Ampère type operator on the Heisenberg group. A notion of normal mapping does not seem to be available in this context and the method of proof uses integration by parts and oscillation estimates that lead to the construction of an analogue of Monge-Ampère measures for convex functions in the Heisenberg group.
GEM operation in negative ion drift gas mixtures
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: negative ion TPC
dark matter
WIMP
DRIFT
GEM

description: The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in CS2 vapor at low pressure, and in mixtures of CS2 with Argon and Helium, some near 1 bar total pressure. © 2004 Elsevier B.V. All rights reserved.
Near threshold electroproduction of the ω meson at Q 2≈0.5 GeV2
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: nucl-ex

description: Electroproduction of the ω meson was investigated in 1H(e,e′p)ω reaction. The measurement was performed at a four-momentum transfer Q2≈0.5 GeV2. Angular distributions of the virtual photon-proton center-of-momentum cross sections have been extracted over the full angular range. These distributions exhibit a strong enhancement over t-channel parity exchange processes in the backward direction. According to a newly developed electroproduction model, this enhancement provides significant evidence of resonance formation in the γ*p → ωp reaction channel.
Mopsechiniscus granulosus Mihelcic 1967
Creators: name: Rossi, Gustavo
name: Claps, Maria
name: Ardohain, Diego
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Tardigrada
Heterotardigrada
Echiniscoidea
Echiniscidae
Mopsechiniscus
Mopsechiniscus granulosus

description: Mopsechiniscus granulosus Mihelcic, 1967
This species has been previously recorded only in the Río Negro province (McInnes, 1994).
description: Published as part of Rossi, Gustavo, Claps, Maria & Ardohain, Diego, 2009, Tardigrades from northwestern Patagonia (Neuquén Province, Argentina) with the description of three new species, pp. 21-36 in Zootaxa 2095 on page 23, DOI: 10.5281/zenodo.187610
Collins fragmentation function from gluon rescattering
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2003
Subjects: hep-ph

description: We estimate the Collins fragmentation function by introducing the effect of gluon rescattering in a model calculation of the fragmentation process. We include all necessary diagrams to the one-loop level and compute the nontrivial phases giving rise to the Collins function. We compare our results to the ones obtained from pion rescattering. We conclude that three out of four one-loop diagrams give sizeable contributions to the Collins function, and that the effect of gluon rescattering has a magnitude comparable to that of pion rescattering, but has opposite sign. © 2003 Elsevier B.V. All rights reserved.
An affine pi hopf algebra not finite over a normal commutative hopf subalgebra
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2003
Subjects: math.QA
math.RA
16

description: In formulating a generalized framework to study certain noncommutative algebras naturally arising in representation theory, K. A. Brown asked if every finitely generated Hopf algebra satisfying a polynomial identity was finite over a normal commutative Hopf subalgebra. In this note we show that Radford's biproduct, applied to the enveloping algebra of the Lie superalgebra pl(1, 1), provides a noetherian prime counterexample.
Lorentz invariance relations among parton distributions revisited
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2003
Subjects: hep-ph

description: We revisit the derivation of the so-called Lorentz invariance relations between parton distributions. In the most important cases these relations involve twist-3 and transverse momentum dependent parton distributions. It is shown that these relations are violated if the path-ordered exponential is taken into account in the quark correlator. © 2003 Elsevier B.V. All rights reserved.
Noetherianity of the space of irreducible representations
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2003
Subjects: math.RA
math.QA

description: Let R be an associative ring with identity. We study an elementary generalization of the classical Zariski topology, applied to the set of isomorphism classes of simple left R-modules (or, more generally, simple objects in a complete abelian category). Under this topology the points are closed, and when R is left noetherian the corresponding topological space is noetherian. If R is commutative (or PI, or FBN) the corresponding topological space is naturally homeomorphic to the maximal spectrum, equipped with the Zariski topology. When R is the first Weyl algebra (in characteristic zero) we obtain a one-dimensional irreducible noetherian topological space. Comparisons with topologies induced from those on A. L. Rosenberg's spectra are briefly noted.
Milnesium tardigradum Doyere 1840
Creators: name: Rossi, Gustavo
name: Claps, Maria
name: Ardohain, Diego
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Aphroditidae
Milnesium
Milnesium tardigradum

description: Milnesium tardigradum Doyère, 1840
 The collected specimens were identified by means of the key given by Tumanov (2006) and comparison with a new species of Kaczmarek and Michalczyk (2007) for the recognition of all known species. According to Tumanov (2006), M. tardigradum must be considered widely distributed but not cosmopolitan.
description: Published as part of Rossi, Gustavo, Claps, Maria & Ardohain, Diego, 2009, Tardigrades from northwestern Patagonia (Neuquén Province, Argentina) with the description of three new species, pp. 21-36 in Zootaxa 2095 on page 23, DOI: 10.5281/zenodo.187610
Universal coding for classical-quantum channel
Creators: name: Hayashi, Masahito
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct a universal code for stationary and memoryless classical-quantum channel as a quantum version of the universal coding by Csiszár and Körner. Our code is constructed by the combination of irreducible representation, the decoder introduced through quantum information spectrum, and the packing lemma.
Program manipulation using a grammar-based meta-programming system
Creators: name: Cameron, Robert Douglas
Publisher: name: University of British Columbia
Year: 2010

description: Program manipulation is defined as the automated or semi-automated tailoring, modification or transformation of software to achieve programs with improved performance or other characteristics or to adapt programs to alternative uses. Program manipulation programs (and other sorts of software tool as well) are characterized as "programs about programs" or meta-programs. It is proposed that the implementation of these meta-programs be aided by a new type of meta-tool, the meta-programming system, which is characterized by its systematic treatment of programs as data objects. In support of the meta-programming system concept, a grammar-based scheme (called GRAMPS) for specifying meta-programming systems is put forward. This scheme is illustrated in its particular application to the programming language Pascal (yielding a specification for the meta-programming system Pascal MPS). The suitability of GRAMPS-based systems for implementing meta-programs is evaluated through theoretical consideration of the properties of GRAMPS systems in general, and an analysis of programming experiments using Pascal MPS in particular. The use of meta-programming systems for program manipulation tasks is analysed with respect to several application areas. Meta-programming systems are compared with various alternatives for the implementation of program transformations. Several types of programming utility are discussed including the use of meta-programs to develop versions of target programs specialized for program analysis. The use of meta-programming systems in the implementation of syntactic editors and integrated program manipulation systems is also considered. The results presented support both the GRAMPS scheme itself and the grammar-based treatment of programs as data objects in general. From a theoretical viewpoint, GRAMPS was found to have four important completeness properties. From an experimental perspective, Pascal MPS was found to be generally convenient and practical for large-scale applications. In each of the application areas considered, the meta-programming system approach compared favorably with available alternatives.
Fractional Chern insulators with a non-Landau level continuum limit
Creators: name: Bauer, David
name: Talkington, Spenser
name: Harper, Fenner
name: Andrews, Bartholomew
name: Roy, Rahul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Recent developments in fractional quantum Hall (FQH) physics highlight the importance of studying FQH phases of particles partially occupying energy bands that are not Landau levels. FQH phases in the regime of strong lattice effects, called fractional Chern insulators, provide one setting for such studies. As the strength of lattice effects vanishes, the bands of generic lattice models asymptotically approach Landau levels. In this article, we construct lattice models for single-particle bands that are distinct from Landau levels even in this continuum limit. We describe how the distinction between such bands and Landau levels is quantified by band geometry over the magnetic Brillouin zone and reflected in the electromagnetic response. We analyze the localization-delocalization transition in one such model and compute a localization length exponent of 2.57(3). Moreover, we study interactions projected to these bands and find signatures of bosonic and fermionic Laughlin states. Most pertinently, our models allow us to isolate conditions for optimal band geometry and gain further insight into the stability of FQH phases on lattices.
description: 19 pages, 13 figures
Validating relativistic models of nuclear structure against theoretical, experimental, and observational constraints
Creators: name: Piekarewicz, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Relativistic mean-field models of nuclear structure have been enormously successful at reproducing ground-state properties of finite nuclei throughout the periodic table using a handful of accurately calibrated parameters. In this contribution we use powerful theoretical, experimental, and observational constraints -- not employed in the calibration procedure -- to validate two such models: NL3 and FSUGold. It is observed that FSUGold is consistent with all these constraints, except perhaps for a high density equation of state that appears mildly softer than required by astronomical observations. It is argued that incorporating such constrains goes a long way in removing much of the ambiguity left over from the standard calibrating procedure.
description: 14 pages (5 figures and 2 tables included)
Two energy scales and slow crossover in YbAl3
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2002
Subjects: intermediate valence
Anderson lattice
exhaustion

description: We present results for YbAl3 which show that the susceptibility, 4f occupation number and the entropy exhibit a slow crossover between the Fermi liquid and local moment regimes. Both the susceptibility and the linear specific heat coefficient exhibit low temperature peaks that imply that in addition to the Kondo scale (TK≈ 500K) there is a second low temperature scale (Tcoh≈ 50K) for the onset of coherence. We discuss these results in the context of the Anderson lattice in the limit of low conduction electron density. © 2002 Elsevier Science B.V. All rights reserved.
Characterizing Chemical Tools for the Discovery of Novel Antiviral Therapeutics
Creators: name: Shaw, Tyler
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2024
Subjects: Virology
Chemistry
Hepatitis C Virus
Human Immunodeficiency Virus Type 1
microRNA
Activity-based Protein Profiling
Mass Spectrometry
Immunometabolism

description: Despite our growing knowledge of virus biology they continue to present a problem to global public health. This problem arises from their high mutation rates that allow them to evade antiviral therapies that we have developed to date. An alternative solution for developing antiviral therapies could be to target host cell factors that are hijacked by the virus. The basis of this hypothesis is that if we can stop the virus from using host cell machinery or from evading host immune mechanisms we could treat the infection more efficiently. With the major research focus being on viral proteins and how we can prevent their functions, there is a lot of work to be done in finding host factors that could be the key to treating an infection. The three themes presented in this thesis broadly focus on this goal. The first theme looks at miRNAs, their interacting partners, and their dysregulation during HCV infection. A microRNA is identified from a small molecule screen of miRNAs that are dysregulated during HCV infection and its role in liver immunometabolism is examined to determine its antiviral potential and identify host factors that could be of interest to target with antiviral therapeutics. The second theme examines the potential of activity-based protein profiling techniques for complementing existing antiviral therapies. An azauracil probe is characterized to examine its ability to interact with viral polymerases and its suitability as a building block for antiviral research or therapies. The final theme uses activity-based protein profiling techniques to study a novel carbamate-hydrazone chemotype and establish its suitability as a chemical probe. The hydrazone probe’s reactivity with the mammalian proteome was determined and its interacting partners were identified using chemoproteomic techniques with an overall goal of examining its suitability for antiviral research. Overall, this thesis uses chemical and molecular biology techniques to present three differing perspectives on how to approach the discovery of host factors and develop novel antiviral therapies.
Macroscopic models of local field potentials and the apparent 1/f noise in brain activity
Creators: name: Bedard, Claude
name: Destexhe, Alain
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: The power spectrum of local field potentials (LFPs) has been reported to scale as the inverse of the frequency, but the origin of this "1/f noise" is at present unclear. Macroscopic measurements in cortical tissue demonstrated that electric conductivity (as well as permittivity) is frequency dependent, while other measurements failed to evidence any dependence on frequency. In the present paper, we propose a model of the genesis of LFPs which accounts for the above data and contradictions. Starting from first principles (Maxwell equations), we introduce a macroscopic formalism in which macroscopic measurements are naturally incorporated, and also examine different physical causes for the frequency dependence. We suggest that ionic diffusion primes over electric field effects, and is responsible for the frequency dependence. This explains the contradictory observations, and also reproduces the 1/f power spectral structure of LFPs, as well as more complex frequency scaling. Finally, we suggest a measurement method to reveal the frequency dependence of current propagation in biological tissue, and which could be used to directly test the predictions of the present formalism.
Acutuncus antarcticus Richters 1904
Creators: name: Rossi, Gustavo
name: Claps, Maria
name: Ardohain, Diego
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Tardigrada
Eutardigrada
Parachela
Hypsibiidae
Acutuncus
Acutuncus antarcticus

description: Acutuncus antarcticus (Richters 1904)
 This species has been recorded in Antarctica (Dastych, 1991); the records from Europe, Asia, and North America were considered dubious by this author. In Argentina, it has been found previously in Tierra del Fuego (Claps et al., 2008). All specimens examined exhibited the characteristics given in Dastych's redescription..
description: Published as part of Rossi, Gustavo, Claps, Maria & Ardohain, Diego, 2009, Tardigrades from northwestern Patagonia (Neuquén Province, Argentina) with the description of three new species, pp. 21-36 in Zootaxa 2095 on page 23, DOI: 10.5281/zenodo.187610
Neutron scattering study of crystal fields in (formula presented)
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2002
Subjects: cond-mat.str-el

description: Neutron scattering results for the tetragonal compound (formula presented) give evidence for two crystal field (CF) excitations at 6.9 and 23.6 meV. The scattering can be fit assuming a set of CF parameters (formula presented) (formula presented) and (formula presented) To compare our results with previous work, we calculate the susceptibility and specific heat for this CF scheme, including a molecular field term (formula presented) to account for the Kondo effect. We also include a calculation based on these CF parameters, which uses the noncrossing approximation to the Anderson model to estimate the effect of Kondo physics on the susceptibility, specific heat, and neutron linewidths. © 2002 The American Physical Society.
The Spectrum of the Black Hole X-ray Nova V404 Cygni in Quiescence as Measured by XMM-Newton
Creators: name: Bradley, C. K.
name: Hynes, R. I.
name: Kong, A. K. H.
name: Haswell, C. A.
name: Casares, J.
name: Gallo, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present XMM observations of the black hole X-ray nova V404 Cygni in quiescence. Its quiescent spectrum can be best fitted by a simple power-law with slope 2. The spectra are consistent with that expected for the advection-dominated accretion flow (ADAF). V404 Cyg was roughly equal in luminosity compared to the previous observation of Chandra. We see variability of a factor of 4 during the observation. We find no evidence for the presence of fluorescent or H-like/He-like iron emission, with upper limits of 52 eV and 110 eV respectively. The limit on the fluorescent emission is improved by a factor of 15 over the previous estimate, and the restriction on H-like/He-like emission is lower than predicted from models by a factor of roughly 2.
description: 6 pages, 7 figures, ApJ accepted
On the stabilization of ion sputtered surfaces
Creators: name: Davidovitch, Benny
name: Aziz, Michael J.
name: Brenner, Michael P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The classical theory of ion beam sputtering predicts the instability of a flat surface to uniform ion irradiation at any incidence angle. We relax the assumption of the classical theory that the average surface erosion rate is determined by a Gaussian response function representing the effect of the collision cascade and consider the surface dynamics for other physically-motivated response functions. We show that although instability of flat surfaces at any beam angle results from all Gaussian and a wide class of non-Gaussian erosive response functions, there exist classes of modifications to the response that can have a dramatic effect. In contrast to the classical theory, these types of response render the flat surface linearly stable, while imperceptibly modifying the predicted sputter yield vs. incidence angle. We discuss the possibility that such corrections underlie recent reports of a ``window of stability'' of ion-bombarded surfaces at a range of beam angles for certain ion and surface types, and describe some characteristic aspects of pattern evolution near the transition from unstable to stable dynamics. We point out that careful analysis of the transition regime may provide valuable tests for the consistency of any theory of pattern formation on ion sputtered surfaces.
Measurement of carbon disulfide anion diffusion in a TPC
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2001
Subjects: carbon disulfide
CS2
diffusion
mobility
TPC

description: A Negative Ion Time Projection Chamber was used to measure the field dependence of lateral and longitudinal diffusion for CS2 anions drifting in mixtures of CS2 and Ar at 40 Torr. Ion drift velocities and limits on the capture distance for electrons as a function of field and gas mixture are also reported. © 2001 Elsevier Science B.V.
Noise driven unlimited population growth
Creators: name: Meerson, Baruch
name: Sasorov, Pavel V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Demographic noise causes unlimited population growth in a broad class of models which, without noise, would predict a stable finite population. We study this effect on the example of a stochastic birth-death model which includes immigration, binary reproduction and death. The unlimited population growth proceeds as an exponentially slow decay of a metastable probability distribution (MPD) of the population. We develop a systematic WKB theory, complemented by the van Kampen system size expansion, for the MPD and for the decay time. Important signatures of the MPD is a power-law tail (such that all the distribution moments, except the zeroth one, diverge) and the presence in the solution of two different WKB modes.
description: 4 pages, 2 figures
Slow crossover in YbXCu4 (X=Ag, Cd, In, Mg, Tl, Zn) intermediate-valence compounds
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2001
Subjects: cond-mat.str-el
cond-mat.mtrl-sci

description: We compare the results of measurements of the magnetic susceptibility χ(T), the linear coefficient of specific heat γ(T)=C(T)/T, and 4f occupation number nf(T) for the intermediate-valence compounds YbXCu4(X=Ag, Cd, In, Mg, Tl, Zn) to the predictions of the Anderson impurity model, calculated in the noncrossing approximation (NCA). The crossover from the low temperature Fermi-liquid state to the high-temperature local-moment state is substantially slower in the compounds than predicted by the NCA; this corresponds to the “protracted screening” recently predicted for the Anderson lattice. We present results for the dynamic susceptibility, measured through neutron-scattering experiments, to show that the deviations between theory and experiment are not due to crystal-field effects, and we present x-ray-absorption fine-structure results that show the local crystal structure around the X atoms is well ordered, so that the deviations probably do not arise from Kondo disorder. The deviations may correlate with the background conduction electron density, as predicted for protracted screening. © 2001 The American Physical Society.
Constructing irreducible representations of finitely presented algebras
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2001
Subjects: math.RA
math.AC
math.RT
16-08;13P10

description: We describe an algorithmic test, using the "standard polynomial identity" (and elementary computational commutative algebra), for determining whether or not a finitely presented associative algebra has an irreducible n-dimensional representation. When n-dimensional irreducible representations do exist, our proposed procedure can (in principle) produce explicit constructions. © 2001 Academic Press.
Non-volatile switching in graphene field effect devices
Creators: name: Echtermeyer, T. J.
name: Lemme, M. C.
name: Baus, M.
name: Szafranek, B. N.
name: Geim, A. K.
name: Kurz, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The absence of a band gap in graphene restricts its straight forward application as a channel material in field effect transistors. In this letter, we report on a new approach to engineer a band gap in graphene field effect devices (FED) by controlled structural modification of the graphene channel itself. The conductance in the FEDs is switched between a conductive "on-state" to an insulating "off-state" with more than six orders of magnitude difference in conductance. Above a critical value of an electric field applied to the FED gate under certain environmental conditions, a chemical modification takes place to form insulating graphene derivatives. The effect can be reversed by electrical fields of opposite polarity or short current pulses to recover the initial state. These reversible switches could potentially be applied to non-volatile memories and novel neuromorphic processing concepts.
description: 14 pages, 4 figures, submitted to IEEE EDL
Hypsibius convergens Urbanowicz 1925
Creators: name: Rossi, Gustavo
name: Claps, Maria
name: Ardohain, Diego
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Tardigrada
Eutardigrada
Parachela
Hypsibiidae
Hypsibius
Hypsibius convergens

description: Hypsibius convergens (Urbanowicz 1925)
 This species is considered to be cosmopolitan, or at least widely distributed (McInnes, 1994), and has been previously recorded in the majority of the provinces of Argentina (Claps et al., 2008).
description: Published as part of Rossi, Gustavo, Claps, Maria & Ardohain, Diego, 2009, Tardigrades from northwestern Patagonia (Neuquén Province, Argentina) with the description of three new species, pp. 21-36 in Zootaxa 2095 on page 24, DOI: 10.5281/zenodo.187610
Low pressure negative ion time projection chamber for dark matter search
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2000
Subjects: astro-ph

description: Weakly Interacting Massive Particles (WIMPs) are an attractive candidate for the dark matter thought to make up the bulk of the mass of our universe. We explore here the possibility of using a low pressure negative ion drift chamber to search for WIMPs. The innovation of drifting ions, instead of electrons, allows the design of a detector with exceptional sensitivity to, background rejection from, and signature of WIMPs.
Slides for Joint IEEE/CIGRE  Panel - Blockchain in Power Systems
Creators: David Bowker
Hannes Agabus
Claudio Lima
Hannah Davis
Umit Cali
Publisher: name: IEEE
Year: 2020

Slides for Workshop: Joint IEEE/CIGRE  Panel - Blockchain in Power Systems

The panel addressed the ongoing work of both CIGRE and the IEEE in this segment.  Important topics, such as the use of blockchain in new energy market design, blockchain in energy standardization and blockchain applications in transactive energy will be discussed.

Chair David Bowker, Convenor CIGRE C5.30 Working Group
Fazel Mohammadi, Panel Coordinator  CIGRE C5.30 Representative

Panels:
Electricity market challenges and disruptive innovation with emerging technologies
Hannes Agabus, Tallinn University of Technology, Estonia
 - Current market environment and developments in market design (EU example)
- Principles of future EU electricity market design
- Market shortcomings and challenges
- Market improvements with technology solutions (assisting technologies)
- Summary of how blockchain can address market challenges

CIGRE Blockchain Working Group Insights
Hannah Davis, EPRI
- Working group overview, key objectives, and deliverables
- Potential blockchain applications in electricity markets
- Insights from global blockchain project assessments and technical report
- Next Steps for working group

IEEE Blockchain DLT Standards and Transactive Energy
Claudio Lima, Ph.D., Blockchain Engineering Council (BEC)
Co-Founder, IEEE Blockchain in Energy P2418.5 WG Standards - Chair
- Blockchain in Energy Standards Updates
- Blockchain Transactive Energy Initiative
- Blockchain Energy Reference Models

Blockchain - The Future
Umit Cali, Ph.D., - Norwegian University of Science and Technology,
IEEE Blockchain in Energy P2418.5 WG Standards - Vice-Chair
- Blockchain Energy Use Cases : segmentation, survey and mapping from P2418.5
- Blockchain Energy Cybersecurity: updates from P2418.5 Task Force 1
- Next generation Distributed Ledger Technology and outlook
Chandra ACIS Survey of M33 (ChASeM33): X-ray Imaging Spectroscopy of M33SNR21, the Brightest X-ray Supernova Remnant in M33
Creators: name: Gaetz, Terrance J.
name: Blair, William P.
name: Hughes, John P.
name: Winkler, P. Frank
name: Long, Knox S.
name: Pannuti, Thomas G.
name: Williams, Benjamin
name: Edgar, Richard J.
name: Ghavamian, Parviz
name: Plucinsky, Paul P.
name: Sasaki, Manami
name: Kirshner, Robert P.
name: Avillez, Miguel
name: Breitschwerdt, Dieter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and interpret new X-ray data for M33SNR21, the brightest X-ray supernova remnant (SNR) in M33. The SNR is in seen projection against (and appears to be interacting with) the bright HII region NGC592. Data for this source were obtained as part of the Chandra ACIS Survey of M33 (ChASeM33) Very Large Project. The nearly on-axis Chandra data resolve the SNR into a ~5" diameter (20 pc at our assumed M33 distance of 817+/-58 kpc) slightly elliptical shell. The shell is brighter in the east, which suggests that it is encountering higher density material in that direction. The optical emission is coextensive with the X-ray shell in the north, but extends well beyond the X-ray rim in the southwest. Modeling the X-ray spectrum with an absorbed sedov model yields a shock temperature of 0.46(+0.01,-0.02) keV, an ionization timescale of n_e t = $2.1 (+0.2,-0.3) \times 10^{12}$ cm$^{-3}$ s, and half-solar abundances (0.45 (+0.12, -0.09)). Assuming Sedov dynamics gives an average preshock H density of 1.7 +/- 0.3 cm$^{-3}$. The dynamical age estimate is 6500 +/- 600 yr, while the best fit $n_e t$ value and derived $n_e$ gives 8200 +/- 1700 yr; the weighted mean of the age estimates is 7600 +/- 600 yr. We estimate an X-ray luminosity (0.25-4.5 keV) of (1.2 +/- 0.2) times $10^{37}$ ergs s$^{-1}$ (absorbed), and (1.7 +/- 0.3) times $10^{37}$ ergs s$^{-1}$ (unabsorbed), in good agreement with the recent XMM-Newton determination. No significant excess hard emission was detected; the luminosity $\le 1.2\times 10^{35}$ ergs s$^{-1}$ (2-8 keV) for any hard point source.
description: 27 pages, 6 figures (3 color). ApJ (in press)
Slides: Modernizing and Preparing the Grid for Decarbonization
Creators: Saifur Rahman
Massoud Amin
Hamed Heyhat
Anu Anmaswamy
and Kaveh Aflaki (moderator)
Publisher: name: IEEE
Year: 2021

Panel discussion on Modernizing and Preparing the Grid for Decarbonization
The United States recently shared its infrastructure plan building world-class infrastructure including a renewed electric grid, as well as a path to achieve 100% carbon-free electricity by 2035. Today’s electric grid is vulnerable to catastrophic outages, cybersecurity attacks and needs to build a more resilient electric transmission & distribution system for reliable, cleaner, and safer electricity to all. Join the discussion to learn more about:
• Grid-enhancing Technologies for Transmission grid to enable higher renewable energy integrations
• T&D Digital Substations to prepare the grid for decarbonization, digitalization, decentralization
• Energy efficiency in Smart Building
• Cybersecurity and cyber risks mitigation of the modernized grid
Resonant formation of dμt molecules in deuterium: An atomic beam measurement of muon catalyzed dt fusion
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2000
Subjects: nucl-ex
hep-ex
physics.atom-ph

description: During muon catalyzed fusion reactions, one muon of the deuterium-tritium mixture catalyzed over 100 nuclear fusions between deuteron and triton. The thermal energy provided the collision energy for the reaction in the equilibrium states but high temperature targets were not achieved due to problems in tritium handling. The μt beam energy provided direct access to epithermal resonances in the atomic beam method. The experiment, conducted at the M20B channel at TRIUMF, employed silicon and germanium detectors for the detection of muon decay electrons. The experimental and scaling results demonstrated a peak formation rate which was more than that obtained at lower energies.
Comment: Gibbs Sampling, Exponential Families and Orthogonal Polynomials
Creators: name: Berti, Patrizia
name: Consonni, Guido
name: Pratelli, Luca
name: Rigo, Pietro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Comment on ``Gibbs Sampling, Exponential Families and Orthogonal Polynomials'' [arXiv:0808.3852]
description: Published in at http://dx.doi.org/10.1214/08-STS252D the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Stasis and metamorphosis : modes of characterization in the works of Fritz von Unruh
Creators: name: Buffinga, John O.
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this investigation is to arrive at an understanding of Fritz von Unruh's work by examining the author's modes of characterization. Unruh repeatedly introduces kindred characters, character types, and configurations of characters, but uses differing methods of characterization to portray them. By investigating the works completed between 1910 and 1932 and by relating Unruh's techniques of characterization to the total structure of these works, a pattern may be observed which demonstrates that Unruh gradually adapts pre-Expressionist methods of characterization to those typically associated with Expressionism, by depersonalizing hi; characters and by subordinating them to the portrayal of one central figure. This pattern has its roots in the pre-war dramas, culminates in the works completed during the war, and attenuates in the post-war plays. The various stages of this metamorphosis are ultimately related to the message-oriented nature of the works. In the early plays, the conventions of pre-Expressionist drama are gradually adapted to suit the portrayal of contemporary Wilhelminian reality and of a central figure who fights for a reintroduction of the ideals of the past. In the works completed between 1914 and 1918 the author subjects his major characters to a transformation: he presents the figures as types, uses a form of character fragmentation, and makes the plot development as well as the scenic and dialogue composition subservient to the propagation of the ideas incorporated by the central characters. In the post-war plays, finally, each of these modes of character delineation is increasingly less subservient to the major figures, but characterizes the negative, unredeemed world about them, against which they have to assert themselves. In these plays, the redemption of man is no longer sought in a past or present reality, but in a realm in which objective reality is transfigured and transformed.
Hypsibius microps Thulin 1928
Creators: name: Rossi, Gustavo
name: Claps, Maria
name: Ardohain, Diego
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Tardigrada
Eutardigrada
Parachela
Hypsibiidae
Hypsibius
Hypsibius microps

description: Hypsibius microps Thulin 1928
 This species is considered to be widely distributed and as such has been recorded in America, Europe, and Asia (McInnes, 1994). In Argentina, it was identified in the Buenos Aires, Entre Ríos, and Santa Cruz Provinces (Claps et al., 2008).
description: Published as part of Rossi, Gustavo, Claps, Maria & Ardohain, Diego, 2009, Tardigrades from northwestern Patagonia (Neuquén Province, Argentina) with the description of three new species, pp. 21-36 in Zootaxa 2095 on page 24, DOI: 10.5281/zenodo.187610
SLIDES- Panel: Future of Electric Power in the US
Creators: Deepak Divan
Anuradha Annaswamy
Anjan Bose
Pramod Khargonekar
Publisher: name: IEEE
Year: 2021

SLIDES- Panel: Future of Electric Power in the US
SLIDES -
A new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine provides comprehensive recommendations for improving the U.S. electric power system so that it can adequately provide electricity to the nation in a safe, reliable, clean, resilient, and equitable way, especially as the U.S. pursues decarbonization of the energy supply. The report also recommends ways to accelerate innovations in technology, policy, and business models as global supply chains shift. This panel will offer a summary of key findings of this report, with a focus on technologies and tools.