cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phase Transfer Photolysis of Metal Hexacarbonyls
Creators: name: Kunkely, Horst
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: The photochemical conversion of M(CO)6 (M = Cr, Mo, W) to M(CO)5X- (X= halogen) across a hexam/ water interface leads to a separation of the reactant and product. This process may be of general lmportence for synthetic applications. Under suitable conditions inner- filter and secondary photolysis can be avoided.
Mississippian-Devonian Black Shales of Kentucky: East-West Transect in Five Cores from the Appalachian Basin to the Illinois Basin
Creators: name: Gooding, Patrick J.
name: Ettensohn, Frank R.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2019

description: Abstract: Devonian-Mississippian black shales are widespread across North America and underlie nearly 70 percent of Kentucky (Kepferle and Roen, 1981; Ettensohn and others, 1988). These black-shale units are among the most thoroughly investigated format ions in the commonwealth, because t hey have sourced most of t he conventional hydrocarbons (Gooding and Ettensohn, 2008; Gooding, 2013), have been major producers of gas in both the Illinois and Appalachian Basins, and have major potential as unconventional producers in both basins. In fact, maturation indicators such as vitrinite reflectance and total organic carbon, from both basins, show that the shales are most ly mature and had a high potent ial to generate hydrocarbons (East and ot hers, 2012; Gooding, 2013; Ryder and others, 2013). In Kentucky, however, temporal and stratigraphic relationships between basins differ, and the units in each basin are known by different names, making cross-basin correlations difficult (Ettensohn and others, 1988). Thus, the purpose of this chart is to provide preliminary interbasinal correlations based on five cores (A-E) available at the Kentucky Geological Survey Earth Analysis Research Library. This chart correlates organic-rich shales across the Cincinnati Arch via radioactive stratigraphy and supplemental biostratigraphic control. Where available, commercial gamma-ray logs were used for correlation, but where unavailable, artificial gamma-ray logs, or radioactivity profiles, were produced using a hand held scintillometer (Ettensohn and others, 1979).
Threshold pion electroproduction at large momentum transfers
Creators: name: Braun, Vladimir M.
name: Ivanov, Dmitri
name: Peters, Andreas
Publisher: name: Universität Regensburg
Year: 2008
Subjects: subject: 530 Physik
subject: 12.38.−t, 13.40.Gp, 14.20.Dh

description: We consider pion electroproduction close to threshold for Q2 in the region 1–10 GeV2 on a nucleon target. The momentum transfer dependence of the S-wave multipoles at threshold, E0+ and L0+, is calculated in the chiral limit using light-cone sum rules. Predictions for the cross sections in the threshold region are given taking into account P-wave contributions that, as we argue, are model independent to a large extent. The results are compared with the SLAC E136 data on the structure function F2(W,Q2) in the threshold region.
Review of AdS/CFT Integrability: An Overview
Creators: name: Beisert, Niklas
name: Ahn, Changrim
name: Alday, Luis F.
name: Bajnok, Zoltan
name: Drummond, James M.
name: Freyhult, Lisa
name: Gromov, Nikolay
name: Janik, Romuald A.
name: Kazakov, Vladimir
name: Klose, Thomas
name: Korchemsky, Gregory P.
name: Kristjansen, Charlotte
name: Magro, Marc
name: McLoughlin, Tristan
name: Minahan, Joseph A.
name: Nepomechie, Rafael I.
name: Rej, Adam
name: Roiban, Radu
name: Schafer-Nameki, Sakura
name: Sieg, Christoph
name: Staudacher, Matthias
name: Torrielli, Alessandro
name: Tseytlin, Arkady A.
name: Vieira, Pedro
name: Volin, Dmytro
name: Zoubos, Konstantinos
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 37K15, 81T13, 81T30, 81U15

description: This is the introductory chapter of a review collection on integrability in the context of the AdS/CFT correspondence. In the collection we present an overview of the achievements and the status of this subject as of the year 2010.
description: 31 pages, v2: reference added, references to other chapters updated, v3: footnote 1 on location of references added, v4: minor changes, references added, accepted for publication in Lett. Math. Phys, v5: minor corrections, links to chapters updated, attached IntAdS.pdf with all chapters in one file, see http://arxiv.org/src/1012.3982/anc/IntAdS.pdf or http://www.phys.ethz.ch/~nbeisert/IntAdS.pdf
Photoredox Chemistry of Chloromercurate(II) Complexes in Acetonitrile
Creators: name: Horváth, O.
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: The kinetically labile chloromercurates(II) have rather high stepwise formation constants in acetonitrile; even for HgCI42- a value of 1.07 X lo4 M-I was determined. The ultraviolet spectra of these complexes are characterized by ligand-to-metal charge-transfer transitions of different energies and intensities. Their photolysis leads to the formation of Hg(I) and Cl in the primary photochemical reaction. The mercury(I) monomers recombine to give Hg2C12, while chlorine radicals are reconverted to CI-, increasing the Cl-/Hg( 11) ratio in the solution. In considerable excess of CI- ([Cl-] = 5 X 10-3 M at 4.5 x 10-5 M HgC142-) mercury(I) species undergo disproportionation giving HgO as end product. The higher the ligand number of the complex, the lower is the quantum yield for the overall reaction: 5.3 10-2, 1.35 X 10-2 and 9.5x10-3 for HgC12, HgC13-, and HgC142-, respectively, in deaerated solution at λir = 254 nm. In the presence of air quantum yields are lower and the main product is Hg2C12 in all cases. Ethanol enhances the efficiency of the photoreduction but only in argon-saturated systems, indicating competitive reactions of the Hg(I) monomers formed in the primary step and a considerable oxygen sensitivity of HgO as well.
Supplementary material: Food for thought: an analogy for digital sovereignty in education.
Creators: name: Ruiz-Garcia, Aurelio
name: Hernández-Leo, Davinia
Publisher: name: Zenodo
Year: 2025
Subjects: digital sovereignty
food sovereignty
education
digital competence

description: Supplementary material for 

Ruiz-García A, Hernández-Leo D. Food for thought: an analogy for digital sovereignty in education. 19th International Conference of the Learning Sciences (ICLS) 2025-ICLS Proceedings. Learning, 2025 (accepted)

Abstract: Digital sovereignty (DS) in education refers to the educational community's capacity to exercise self-governance over technology use, aligning it with educational goals. Many educators, with limited familiarity with critical digital literacy, struggle to represent technological issues using domain principles and values, restricting engagement with its ethical, environmental, and agency-focused principles. This paper proposes using food sovereignty principles as an analogy to foster abstract representations by linking DS to a familiar context.
The Pseudo-Conformal Universe: Scale Invariance from Spontaneous Breaking of Conformal Symmetry
Creators: name: Hinterbichler, Kurt
name: Khoury, Justin
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a novel theory of the very early universe which addresses the traditional horizon and flatness problems of big bang cosmology and predicts a scale invariant spectrum of perturbations. Unlike inflation, this scenario requires no exponential accelerated expansion of space-time. Instead, the early universe is described by a conformal field theory minimally coupled to gravity. The conformal fields develop a time-dependent expectation value which breaks the flat space so(4,2) conformal symmetry down to so(4,1), the symmetries of de Sitter, giving perturbations a scale invariant spectrum. The solution is an attractor, at least in the case of a single time-dependent field. Meanwhile, the metric background remains approximately flat but slowly contracts, which makes the universe increasingly flat, homogeneous and isotropic, akin to the smoothing mechanism of ekpyrotic cosmology. Our scenario is very general, requiring only a conformal field theory capable of developing the appropriate time-dependent expectation values, and encompasses existing incarnations of this idea, specifically the U(1) model of Rubakov and the Galileon Genesis scenario. Its essential features depend only on the symmetry breaking pattern and not on the details of the underlying lagrangian. It makes generic observational predictions that make it potentially distinguishable from standard inflation, in particular significant non-gaussianities and the absence of primordial gravitational waves.
description: 51 pages, 3 figures. v2 discussion and refs added, minus sign in transformation laws fixed. Version appearing in JCAP
Phegea51-2. Book review. Benyamini D. 2021. Butterflies of the Levant and nearby areas. Vol. III Nymphalidae: Libytheinae, Danainae, Charaxinae, Satyrinae, Limenetidinae, Biblidinae, Heliconiinae, Nymphalinae.
Creators: name: De Prins, Willy
Publisher: name: figshare
Year: 2023
Subjects: Animal behaviour

description: Dit is het derde deel in een geplande reeks van vier boeken over de vlinders van de Levant. Zoals in de boekbespreking van het tweede deel uit deze reeks (Phegea 49(3): 143) reeds aangehaald, wordt met de Levant een niet exact omschreven gebied aangeduid dat vooral de landen Israël, Jordanië, Libanon en Syrië omvat. Daarnaast worden ook de vlinders besproken die in de aangrenzende gebieden voorkomen: Cyprus, Noordoost-Egypte (vooral de Sinaï), West-Irak, Noordwest-Saoedi-Arabië (Hejaz) en Zuid-Turkije (Hatay). In het totaal gaat het om 96 soorten die in dit geopolitiek moeilijk toegankelijke gebied voorkomen.
The effects of a novel lower limb proprioception training intervention on skilled walking performance for individuals with a spinal cord injury
Creators: name: Qaiser, Taha
Publisher: name: University of British Columbia
Year: 2017

description: Introduction: Proprioception gives us the ability to know the location of our limbs in space. It plays a critical role in movement control, including walking. After a spinal cord injury (SCI), individuals experience not only weakness or paralysis, but also proprioceptive deficits, which further compound difficulties with movement control. In this study, we tested the effects of a new robotic-based protocol to train proprioceptive sense in the lower limbs and assessed whether improvements in proprioceptive sense could also improve performance of a skilled walking task in people with SCI. Methods: Skilled walking performance was assessed by participants’ accuracy in matching their heel position during the swing phase of walking to a virtual target presented on a monitor. Proprioceptive sense was assessed by knee joint position sense with a validated protocol using the Lokomat robotic exoskeleton. Subjects then underwent proprioceptive training. The training protocol required subjects to detect whether their heel position was higher or lower compared to an initial position. After each trial, visual feedback about their accuracy was provided. The assessments of skilled walking and knee joint position sense were assessed post-training as well as 24-hours later. Results and Conclusion: Our results showed that the training protocol was effective, with a significant improvement in knee joint position sense post-training that was also evident 24-hours later. A slight trend in improvement was also observed in skilled walking performance post-training. These findings indicate that it is possible to improve lower limb proprioceptive acuity following sensory training and that such improvements could further influence skilled walking performance.
An approach toward the laboratory search for the scalar field as a candidate of Dark Energy
Creators: name: Fujii, Yasunori
name: Homma, Kensuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The observed accelerating universe indicates the presence of Dark Energy which is probably interpreted in terms of an extremely light gravitational scalar field. We suggest a way to probe this scalar field which contributes to optical light-by-light scattering through the resonance in the quasi-parallel collision geometry. As we find, the frequency-shifted photons with the specifically chosen polarization state can be a distinct signature of the scalar-field-exchange process in spite of the extremely narrow width due to the gravitationally weak coupling to photons. Main emphasis will be placed in formulating a prototype theoretical approach, then showing how the weak signals from the gravitational coupling are enhanced by other non-gravitational effects at work in laser experiments.
description: 20 pages, 6 figure. Accepted by Progress of Theoretical Physics
Photochemistry of Coordination Compounds of the Main Group Metals
Creators: name: Vogler, Arnd
name: Paukner, A.
name: Kunkely, Horst
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: 540 Chemie

description: A general concept is developed which relates characteristics excited states of main group metal complexes to typical photoreactions. With regard to their electronic spectra and photochemistry the main group metals are classified according to their ground state electron configuration nsxnpy. The photochemistry is generally dominated by the reactivity of metal-centered sp and ligand to metal charge transfer excited states which in most cases initiate inter- and intramolecular photoredox processes.
Superimposed particles in 1D ground states
Creators: name: Suto, Andras
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For a class of nonnegative, range-1 pair potentials in one dimensional continuous space we prove that any classical ground state of lower density >=1 is a tower-lattice, i.e., a lattice formed by towers of particles the heights of which can differ only by one, and the lattice constant is 1. The potential may be flat or may have a cusp at the origin, it can be continuous, but its derivative has a jump at 1. The result is valid on finite intervals or rings of integer length and on the whole line.
description: Discussion added
Photochemistry and Photophysics of Coordination Compounds of the Main Group Metals
Creators: name: Vogler, Arnd
name: Nikol, H.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: The photoproperties of main group metal complexes with the electron configurations s2 (e.g. T l + , Sb3 + , Te4 + ) and s° (e.g. T l 3 + , Pb4 + ) were studied on the basis of a general concept which relates characteristic excited states to typical photophysical and photochemical processes. The photochemistry is dominated by metalcentered sp (s2) and ligand to metal charge transfer (s°) excited states which are capable of inducing inter- and intramolecular redox reactions.
Luminescence of Dimeric T1(I) Complexes: Metal-Metal Interaction in the Electronically Excited State
Creators: name: Sabin, F.
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: Dialkyldithiocarbamatethallium(I) - Luminescence - Metal-metal interaction
subject: 540 Chemie

description: Dimeric diethyldithiocarbamatethallium(I) [Et 2NCS2Tl]2 shows a red emission at λmax=608 nm which undergoes a huge Stokes shift with regard to the excitation maximum at λ=246 nm. It is suggested that the emission originates from a sp excited state which is characterized by strong metal-metal bonding.
Constraints on Scalar Asymmetric Dark Matter from Black Hole Formation in Neutron Stars
Creators: name: McDermott, Samuel D.
name: Yu, Hai-Bo
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider possibly observable effects of asymmetric dark matter (ADM) in neutron stars. Since dark matter does not self-annihilate in the ADM scenario, dark matter accumulates in neutron stars, eventually reaching the Chandrasekhar limit and forming a black hole. We focus on the case of scalar ADM, where the constraints from Bose-Einstein condensation and subsequent black hole formation are most severe due to the absence of Fermi degeneracy pressure. We also note that in some portions of this constrained parameter space, non-trivial effects from Hawking radiation can modify our limits. We find that for scalar ADM with mass between 100 keV and 10^5 GeV, the constraint from pulsars in globular clusters on the scattering cross-section with neutrons ranges from σ_n < 10^{-45} cm^2 to 10^{-52} cm}^2. In particular, for scalar ADM with mass between 1 GeV and 1 TeV (in the case where black hole evaporation due to Hawking radiation is unimportant), the constraint on the scattering cross-section is below what is reachable with ton scale direct detection experiments.
description: 24 pages, 5 figures; updated to match published version
Classicality witness for two-qubit states
Creators: name: Maziero, J.
name: Serra, R. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the last few years one realized that if the state of a bipartite system can be written as $\sum_{i,j}p_{ij}|a_{i}>< a_{i}|\otimes |b_{j}> < b_{j}|$, where $\{|a_{i}> \}$ and $\{|b_{j}> \}$ form orthonormal basis for the subsystems and $\{p_{ij}\}$ is a probability distribution, then it possesses at most classical correlations. In this article we introduce a nonlinear witness providing a sufficient condition for classicality of correlations (absence of quantum discord) in a broad class of two-qubit systems. Such witness turns out to be necessary and sufficient condition in the case of Bell-diagonal states. We show that the witness introduced here can be readily experimentally implemented in nuclear magnetic resonance setups.
description: To appear in IJQI
Next-Generation Computing: Trends and Challenges in Research, organized by the Department of Computer Science & Applications, Sharda University, from March 25–29, 2025
Creators: name: Chaturvedi, Ravi Prakash
Publisher: name: Zenodo
Year: 2025

description: Next-Generation Computing: Trends and Challenges in Research", organized by the Department of Computer Science & Applications, Sharda University, from March 25–29, 2025
Holographic and Gravity-Thermodynamic Approaches in Entropic Cosmology: Bayesian Assessment using late-time Data
Creators: name: Tyagi, Udit K.
name: Haridasu, Sandeep
name: Basak, Soumen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the cosmological implications of entropy-based approaches in the context of Holographic Dark Energy (HDE) and Gravity-Thermodynamics (GT) formalisms. We utilise the extended Barrow entropy form, with the index parameter $Δ$, representing the fractal dimension of the horizon. We also test implementing different parameter ranges for $Δ$, which can be extended to Tsallis' interpretation within the same formal cosmology. We perform a Bayesian analysis to constrain the cosmological parameters using the Pantheon+, more recent DESy5, DESI, and, as a supplement, Quasar datasets. We find that the HDE model within almost all data combinations performs extremely well in comparison to the GT approach, which is usually strongly disfavored. Using the combination of DESy5+DESI alone, we find that the GT approaches are disfavored at $|\log \mathcal{B}| \sim 5.8$ and $|\log \mathcal{B}| \sim 6.2$ for the Barrow and Tsallis limits on $Δ$, respectively, wrt $Λ$CDM model. While the HDE approach is statistically equivalent to $Λ$CDM when comparing the Bayesian evidence. We also investigate the evolution of the dark energy equation of state and place limits on the same, consistent with quintessence-like behaviour in the HDE approaches.
description: 14 pages, 5 figures, Agrees with the accepted version (Dated 03/09/2024). Fig 4 has been updated for better visualization. The analysis with the Quasars data is now excluded, referring to arXiv:2305.08179, arXiv:2212.10483, arXiv:2012.09291
Clim4Vitis Launch Event at UTAD
Creators: name: Santos, João Carlos Andrade
name: Schultz, Hans R.
name: Roquette, José H.
name: Bois, Benjamim
name: Cortazar-Atauri, Iñaki Garcia De
Publisher: name: Zenodo
Year: 2019
Subjects: Clim4Vitis Launch Event

description: Invited speakers' presentations during the Clim4Vitis Launch Event at UTAD, held on the 19th of February 2019.
Generalized Geologic Map for Land-Use Planning: Martin County, Kentucky
Creators: name: Carey, Daniel I.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2007

description: Abstract:
This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.
The inverse moment problem for convex polytopes
Creators: name: Gravin, Nick
name: Lasserre, Jean
name: Pasechnik, Dmitrii
name: Robins, Sinai
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Geometry (cs.CG)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.2.1; F.2.2
subject: 52B11, 42B10, 47B35

description: The goal of this paper is to present a general and novel approach for the reconstruction of any convex d-dimensional polytope P, from knowledge of its moments. In particular, we show that the vertices of an N-vertex polytope in R^d can be reconstructed from the knowledge of O(DN) axial moments (w.r.t. to an unknown polynomial measure od degree D) in d+1 distinct generic directions. Our approach is based on the collection of moment formulas due to Brion, Lawrence, Khovanskii-Pukhikov, and Barvinok that arise in the discrete geometry of polytopes, and what variously known as Prony's method, or Vandermonde factorization of finite rank Hankel matrices.
description: LaTeX2e, 24 pages including 1 appendix
Constructing Proper Markov Semigroups for Arveson Systems
Creators: name: Skeide, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L55 46L53 60J25

description: We show that the Markov semigroup obtained by Floricel in [Flo08] compressing the $E_0$-semigroup of Skeide [Ske06], does not consist of endomorphisms. It, therefore, cannot be the tail flow of an $E_0$-semigroup. As a corollary of our result, Floricel's construction will allow to get examples of proper type III Markov semigroups that are not tensor products of simpler ones, provided we find type III Arveson systems that do not factor into tensor products.
description: Submitted to and rejected by the editors of JFA. To appear in JMAA. (Title changed; see v1. Revision of the representation of the Corollay, including now detailed proofs.)
Eccentricity and elliptic flow in proton-proton collisions from parton evolution
Creators: name: Avsar, Emil
name: Flensburg, Christoffer
name: Hatta, Yoshitaka
name: Ollitrault, Jean-Yves
name: Ueda, Takahiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It has been argued that high-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena usually studied in the context of heavy-ion collisions, such as elliptic flow. We study this issue using DIPSY - a Monte Carlo event generator based on the QCD dipole model. We calculate the eccentricity of the transverse area defined by the spatial distribution of produced gluons. The resulting elliptic flow is estimated to be about 6%, comparable to the value in nucleus-nucleus collisions at RHIC and the LHC. Experimentally, elliptic flow is inferred from the azimuthal correlation between hadrons, which receives contributions from collective flow, and from various other effects referred to as "nonflow". We discuss how to identify in experiments the signal of flow in the presence of large nonflow effects.
description: v2: Four-particle correlation added, improved discussions on the signatures of flow. v3: Improved treatment of fluctuations in the flow analysis. v4: Minor changes for journal submission
Optical properties of zinc oxide clusters encapsulated in a zeolite host
Creators: name: Türk, T.
name: Sabin, F.
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: zinc; oxide; zeolite
subject: 540 Chemie

description: The optical properties of nanometer-sized semiconductor materials are of interest in areas such as photocatalysis and non-linear optics. Ultrasmall zinc oxide particles encapsulated in a porous zeolite (A) host were characterized by powder X-ray diffraction, reflectance, and luminescence spectra. Compared to bulk ZnO the particles show pronounced blue shifts of the reflectance as well as the luminescence bands owing to the quantum size effect.
Modeling place attachment using GIS
Creators: name: Maguire, Bradley David
Publisher: name: University of British Columbia
Year: 2017

description: The PlaceInGIS project is a comprehensive examination of how places can be represented using modern Geographic Information System (GIS). After decades of research, geographers now understand that places are dynamic features, whose fuzzy boundaries change over time, subject to internal and external forces. The long-term goal of the PlaceInGIS project is to make people's understanding of place visible, comparable and amenable to analysis. Place attachment is a theoretical construct that permits the quantification, visualization and analysis of the importance of place. The method described makes use of two significant sub-components of place attachment, place dependence and place identity, to create fuzzy surfaces in a GIS. After conducting a detailed GPS mapping exercise of the Colliery Dam Park study area in Nanaimo, British Columbia, Canada, 302 study participants were presented with a survey questionnaire between 2011 and 2012. The place attachment and place dependence components for each feature described were used to create "feature surfaces." These were then combined using a Fuzzy OR operator to generate a single "place attachment surface" for each individual, which can be compared against each other or summed to show the overall opinions of groups. In the short term, we are developing an application called the Place Analysis System (PAS), which enables places to be adequately represented. There are numerous applications for the PAS, as it creates a foundation for the comparative study of place. For the first time, it is possible to visualize, take measurements and analyze place attachment. What was once an ephemeral concept has been made concrete and amenable to study. The PAS can analyze fuzzy boundaries, or the fuzzy boundaries can be defuzzified to be more compatible with traditional representations of data in a GIS. We examine two applications of the PAS, one as a tool for site planning, and the other for the geographical analysis of core and periphery. These applications demonstrate the utility of the PAS, and we conclude by considering further applications and modifications to make the method easier to employ in future studies.
Black-spotted Pierrot, addition to the butterfly fauna of Chhattisgarh, India.
Creators: name: Tandan, H N
name: Chand, Gulab
name: Naidu, Ravi
Publisher: name: figshare
Year: 2022
Subjects: Animal behaviour
Animal systematics and taxonomy
Bioinformatics and computational biology not elsewhere classified
Zoology not elsewhere classified

description: A total of 158 species of butterflies were documented to date. During the study, we surveyed the various sites of all revenue blocks of Dhamtari. As a result, we found, one species Tarucus balkanicus nigra was previously unreported from Chhattisgarh which has been added as a new record for the state of Chhattisgarh.
Photochemistry of Transition Metal Complexes Induced by Outer-Sphere Charge Transfer Excitation
Creators: name: Vogler, Arnd
name: Kunkely, Horst
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: 540 Chemie

description: The intermolecular (outer sphere, OS) interaction of a reducing and an oxidizing metal complex generates a new optical transition involving charge transfer (CT) from the electron donor to the acceptor. OS CT transitions are classified according to the redox site (metal or ligand). Generally, the interaction between donor and acceptor is facilitated by ion pairs consisting of an oxidizing complex cation and a reducing complex anion. There are also ion pairs which are composed of a metal complex and an organic counter ion as electron donor or acceptor. In addition, the review includes examples of OS CT interaction which do not involve ion pairs at all. — A short introduction into the theory is followed by the discussion of the spectroscopy of OS CT of transition metal complexes. Finally, photoreactions induced by OS CT transitions are reviewed. The optical transfer is frequently followed by a rapid back electron transfer which regenerates the starting complexes. In many cases the primary products are kinetically labile and substitution reactions compete successfully with back electron transfer. As a result stable redox products may be formed. As an alternative, the substitution can be followed by back electron transfer. Product formation appears then as a substitution of the starting complexes. The various possibilities are illustrated by appropriate examples.
Higgs Production via Weak Boson Fusion in the Standard Model and the MSSM
Creators: name: Figy, Terrance
name: Palmer, Sophy
name: Weiglein, Georg
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Weak boson fusion is expected to be an important Higgs production channel at the LHC. Complete one-loop results for weak boson fusion in the Standard Model have been obtained by calculating the full virtual electroweak corrections and photon radiation and implementing these results into the public Monte Carlo program VBFNLO which includes the NLO QCD corrections. Furthermore the dominant supersymmetric one-loop corrections to neutral Higgs production, in the general case where the MSSM includes complex phases, have been calculated. These results have been combined with all one-loop corrections of Standard Model type and with the propagator-type corrections from the Higgs sector of the MSSM up to the two-loop level. Within the Standard Model the electroweak corrections are found to be as important as the QCD corrections after the application of appropriate cuts. The corrections yield a shift in the cross section of order 5% for a Higgs of mass 100-200 GeV, confirming the result obtained previously in the literature. For the production of a light Higgs boson in the MSSM the Standard Model result is recovered in the decoupling limit, while the loop contributions from superpartners to the production of neutral MSSM Higgs bosons can give rise to corrections in excess of 10% away from the decoupling region.
description: 33 pages, 10 figures, and 2 tables. Version accepted by JHEP
Factorization and Resummation for Dijet Invariant Mass Spectra
Creators: name: Bauer, Christian W.
name: Tackmann, Frank J.
name: Walsh, Jonathan R.
name: Zuberi, Saba
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Multijet cross sections at the LHC and Tevatron are sensitive to several distinct kinematic energy scales. When measuring the dijet invariant mass m_jj between two signal jets produced in association with other jets or weak bosons, m_jj will typically be much smaller than the total partonic center-of-mass energy Q, but larger than the individual jet masses m, such that there can be a hierarchy of scales m << m_jj << Q. This situation arises in many new-physics analyses at the LHC, where the invariant mass between jets is used to gain access to the masses of new-physics particles in a decay chain. At present, the logarithms arising from such a hierarchy of kinematic scales can only be summed at the leading-logarithmic level provided by parton-shower programs. We construct an effective field theory, SCET+, which is an extension of soft-collinear effective theory that applies to this situation of hierarchical jets. It allows for a rigorous separation of different scales in a multiscale soft function and for a systematic resummation of logarithms of both m_jj/Q and m/Q. As an explicit example, we consider the invariant mass spectrum of the two closest jets in e+e- -> 3 jets. We also give the generalization to pp -> N jets plus leptons relevant for the LHC.
description: 37 pages, 6 figures; v2: journal version
Evolution of spiral and scroll waves of excitation in a mathematical model of ischaemic border zone
Creators: name: Biktashev, Vadim N.
name: Biktasheva, Irina V.
name: Sarvazyan, Narine A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Abnormal electrical activity from the boundaries of ischemic cardiac tissue is recognized as one of the major causes in generation of ischemia-reperfusion arrhythmias. Here we present theoretical analysis of the waves of electrical activity that can rise on the boundary of cardiac cell network upon its recovery from ischaemia-like conditions. The main factors included in our analysis are macroscopic gradients of the cell-to-cell coupling and cell excitability and microscopic heterogeneity of individual cells. The interplay between these factors allows one to explain how spirals form, drift together with the moving boundary, get transiently pinned to local inhomogeneities, and finally penetrate into the bulk of the well-coupled tissue where they reach macroscopic scale. The asymptotic theory of the drift of spiral and scroll waves based on response functions provides explanation of the drifts involved in this mechanism, with the exception of effects due to the discreteness of cardiac tissue. In particular, this asymptotic theory allows an extrapolation of 2D events into 3D, which has shown that cells within the border zone can give rise to 3D analogues of spirals, the scroll waves. When and if such scroll waves escape into a better coupled tissue, they are likely to collapse due to the positive filament tension. However, our simulations have shown that such collapse of newly generated scrolls is not inevitable and that under certain conditions filament tension becomes negative, leading to scroll filaments to expand and multiply leading to a fibrillation-like state within small areas of cardiac tissue.
description: 26 pages, 13 figures, appendix and 2 movies, as accepted to PLoS ONE 2011/08/08
Electronic Spectra and Photochemistry of Methyl Platinum(IV) Complexes
Creators: name: Kunkely, Horst
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: 540 Chemie

description: The absorption and emission spectra as well as the photochemistry of the platinum(IV) methyl complexes [Pt(CH3)3I]4 and [Pt(bipy) (CH3)3I] are reported and discussed. The compounds show photoemission from ligand field and intraligand excited states, respectively, and undergo reductive eliminations to platinum(II) from ligand to metal charge transfer states which occur at higher energies.
The minimum distance of parameterized codes on projective tori
Creators: name: Sarmiento, Eliseo
name: Pinto, Maria Vaz
name: Villarreal, Rafael H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Commutative Algebra (math.AC)
subject: Information Theory (cs.IT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 13P25, 14G50, 94B27

description: Let X be a subset of a projective space, over a finite field K, which is parameterized by the monomials arising from the edges of a clutter. Let I(X) be the vanishing ideal of X. It is shown that I(X) is a complete intersection if and only if X is a projective torus. In this case we determine the minimum distance of any parameterized linear code arising from X.
description: Appl. Algebra Engrg. Comm. Comput., to appear
Mitigating Effects of Crop Residue Burning in North-Western India
Creators: name: Viruthiyel, Joseph
Publisher: name: Zenodo
Year: 2023
Subjects: Crop Residue burning, air pollution, sustainable agricultural production, agricultural machinery

description: Crop residue burning is one of the important seasonal contributors to air pollution, along with dumpsite fires and other longer duration factors like emissions from industry, power plants and vehicular traffic. This unacceptable practice affects the health of the environment and that of millions of people, especially in the north-western part of the Indo-Gangetic plains, which contributes much to the food security of the nation. This paper reviews the literature on the magnitude of the problem, government policies to tackle the problem including incentive and punitive measures, alternative methods for managing crop residue. Any alternative has to take into account measures necessary for enhancing food security, farmer affordability and acceptance of technology and proactive policy implementation.
D3.1 - Defining the current baseline and the target circular design methodologies
Creators: name: Boorsma, Nina
Publisher: name: Zenodo
Year: 2019
Subjects: Circular product design, design methodologies, design methodologies for multiple life cycles, design for remanufacturing, remanufacturing, product design

description: This report presents an overview of the most recent design methodologies for multiple product life cycles in literature today and provides an analysis of the current design practices for the two demonstrators, white goods and automotive spare parts. The design methodologies found in literature are presented in three categories: Design for long Use, Design for extended Use and Design for recovery. A selection of more detailed examples of design methodologies is provided at the end of this overview. The analysis of the current practices for the two demonstrating companies is done through on-site observations and interviews. The results of this data collection are presented in the form of a description of the current business activities in relation to product design, as well as a description of the opportunities to improve the product or service design related aspects in terms of fit with design for multiple product life cycles. The final part of the report determines the actions for further research and the remaining requirements for the implementation of long-term design strategies supporting multiple life cycles and the development of multiple-scenario case-specific circular design methodologies
Photolysis of Fe(CO)₄²⁻ in Aqueous NaOH Glasses at 77 K. Formation of Solvated Electrons
Creators: name: Kunkely, Horst
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: The photolysis of [Fe(CO)4]2− in 10 M NaOH glass at 77 K leads to the formation of solvated electrons with θ = 0.03 at λirr = 254 nm. The solvated electrons, which are stable under these conditions, are identified by their characteristic absorption band at λmax = 588 nm.
Warped de Sitter compactifications
Creators: name: Minamitsuji, Masato
name: Uzawa, Kunihito
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the warped de Sitter compactifications are possible under certain conditions in D-dimensional gravitational theory coupled to a dilaton, a form field strength, and a cosmological constant. We find that the solutions of field equations give de Sitter spacetime with the warped structure, and discuss cosmological models directly obtained from these solutions. We also construct a cosmological model in the lower-dimensional effective theory. If there is a field strength having non-vanishing components along the internal space, the moduli can be fixed at the minimum of the effective potential where a de Sitter vacuum can be obtained.
description: 25 pages, 2 figures; v3: references added
Partially Ordered Two-way Büchi Automata
Creators: name: Kufleitner, Manfred
name: Lauser, Alexander
Publisher: name: arXiv
Year: 2010
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.1.1; F.4.1
subject: 68Q45

description: We introduce partially ordered two-way Büchi automata and characterize their expressive power in terms of fragments of first-order logic FO[
description: The results of this paper were presented at CIAA 2010; University of Stuttgart, Computer Science
Optical Ligand to Ligand Charge Transfer of Metal Complexes Including Ligand-Based Mixed-Valence Systems
Creators: name: Vogler, Arnd
name: Kunkely, Horst
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: mixed-valence complexes; electronic spectra; optical electron transfer
subject: 540 Chemie

description: The electronic spectra of metal complexes which contain a reducing and an oxidizing ligand (Lred-M-Lox) are characterized by ligand to ligand charge transfer (LLCT) absorptions. A specific form of Lred-M-Lox complexes are ligand-based mixed-valence (LBMV) compounds which contain the same ligand in two different redox states. In this case the ligand-ligand interaction may lead to a partial or even complete electronic delocalization between the reduced and oxidized form of the ligands. As a consequence, the “LLCT” transition loses its CT character since it takes place between delocalized orbitals.
Prolongation on regular infinitesimal flag manifolds
Creators: name: Neusser, Katharina
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35N10, 58J60, 58A20, 58A30 (Primary) 53D10, 53A40, 22E46 (Secondary)

description: Many interesting geometric structures can be described as regular infinitesimal flag structures, which occur as the underlying structures of parabolic geometries. Among these structures we have for instance conformal structures, contact structures, certain types of generic distributions and partially integrable almost CR-structures of hypersurface type. The aim of this article is to develop for a large class of (semi-)linear overdetermined systems of partial differential equations on regular infinitesimal flag manifolds $M$ a conceptual method to rewrite these systems as systems of the form $\tilde\nabla(Σ)+C(Σ)=0$, where $\tilde\nabla$ is a linear connection on some vector bundle $V$ over $M$ and $C: V\rightarrow T^*M\otimes V$ is a (vector) bundle map. In particular, if the overdetermined system is linear, $\tilde\nabla+C$ will be a linear connection on $V$ and hence the dimension of its solution space is bounded by the rank of $V$. We will see that the rank of $V$ can be easily computed using representation theory.
description: 35 pages; typos corrected and minor changes, final version to appear in International Journal of Mathematics
Photooxidation of AuCl₂⁻ and AuBr₂⁻ Induced by ds Excitation
Creators: name: Kunkely, Horst
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: In the presence of electron acceptors such as CHzC12 or 02, the irradiation of AuC12- or AuBrz- in acetonitrile led to the photooxidation of Au(1) to Au(II1). AuC14- and AuBr4- were formed as final products when additional halide was present. The reactive excited states were of the metal-centered ds type. The photooxidations were reversed in solutions of ethanol. AuC14- and AuBr4- underwent a photoreduction to AuC12- and AuBrz-, respectively.
Photoredox Reactions of Lead(IV) and -(II) Hydroxo Complexes
Creators: name: Becht, A.
name: Vogler, Arnd
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: Ligand-to-metal charge-transfer excitation of Pb(OH)62- in 0.1 M NaOH leads to the formation of Pb(0H)3- with φ = 0.07 at λirr = 254 nm. Hydrogen peroxide was detected as an oxidation product. Upon sp excitation, Pb(OH)3- in 0.1 M NaOH shows a yellow emission at λmax = 570 nm with φ = 1.5 X 10-3 at λirr = 254 nm. In the presence of oxygen, this emission is partially quenched (φ = 1.2 X 10-3) and Pb(OH)3- is photooxidized to Pb(OH)62- with φ = 0.02. A pseudo-photostationary state with 80% Pb(OH)62- is established. In the absence of oxygen, Pb(OH)3- undergoes a photoreduction with the deposition of elemental lead.
A Generalisation For The Infinite Integral Over Three Spherical Bessel Functions
Creators: name: Mehrem, R.
name: Hohenegger, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences
subject: 33-XX

description: A new formula is derived that generalises an earlier result for the infinite integral over three spherical Bessel functions. The analytical result involves a finite sum over associated Legendre functions, $P_l^m(x)$, of degree $l$ and order $m$. The sum allows for values of $|m|$ that are greater than $l$. A generalisation for the associated Legendre functions to allow for any rational $m$ for a specific $l$ is also shown
description: Published in J. Phys. A: Math. Theor. 43 (2010) 455204