cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Confirmation of $g_{\rm A}$ quenching using the revised spectrum-shape method for the analysis of the $^{113}$Cd $β$-decay as measured with the COBRA demonstrator
Creators: name: Kostensalo, Joel
name: Suhonen, Jouni
name: Volkmer, Juliane
name: Zatschler, Stefan
name: Zuber, Kai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this article we present an updated spectrum-shape analysis of the $^{113}$Cd fourfold forbidden non-unique $β$-decay transition in order to address the quenching of the weak axial-vector coupling $g_{\rm A}$ in low-momentum exchange nuclear processes. The experimental data were collected in a dedicated low-threshold run with the COBRA demonstrator at the LNGS and resulted in 44 individual $^{113}$Cd spectra. These data are evaluated in the context of three nuclear model frameworks based on a revised version of the spectrum-shape method and the conserved vector current hypothesis. The novel idea devised in the present work is to fit the value of the small relativistic nuclear matrix element (s-NME) driving the nuclear model calculations, which remained essentially as a free parameter in previous studies. This is done by tuning the nuclear structure calculations and making use of the interplay of $g_{\rm A}$ and the s-NME such that the experimentally known $^{113}$Cd half-life gets reproducible by the different frameworks. In this way, a best fit s-NME value can be derived for each of the considered nuclear models, which finally enters the template calculations used to perform the spectrum-shape analysis for each of the obtained $^{113}$Cd spectra. The primary analysis strategy results in significantly quenched values of the axial-vector coupling for all three nuclear models: $\overline{g}_{\rm A}(\text{ISM}) = 0.907 \pm 0.064$, $\overline{g}_{\rm A}(\text{MQPM}) = 0.993 \pm 0.063$ and $\overline{g}_{\rm A}(\text{IBFM-2}) = 0.828 \pm 0.140$. Moreover, with our data-driven approach one of the main shortcomings of the spectrum-shape method has been resolved. This achievement is a milestone in the description of strongly forbidden $β$-decays and adds to the indications for the existence of a quenching of $g_{\rm A}$ in low-momentum exchange nuclear processes.
description: 16 pages, 12 figures
Electric field representation of pulsar intensity spectra
Creators: name: Walker, Mark
name: Stinebring, Dan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Pulsar dynamic spectra exhibit high visibility fringes arising from interference between scattered radio waves. These fringes may be random or highly ordered patterns, depending on the nature of the scattering or refraction. Here we consider the possibility of decomposing pulsar dynamic spectra -- which are intensity measurements -- into their constituent scattered waves, i.e. electric field components. We describe an iterative method of achieving this decomposition and show how the algorithm performs on data from the pulsar B0834+06. The match between model and observations is good, although not formally acceptable as a representation of the data. Scattered wave components derived in this way are immediately useful for qualitative insights into the scattering geometry. With some further development this approach can be put to a variety of uses, including: imaging the scattering and refracting structures in the interstellar medium; interstellar interferometric imaging of pulsars at very high angular resolution; and mitigating pulse arrival time fluctuations due to interstellar scattering.
description: 7 Pages, 2 Figures, revised version, accepted by MNRAS
ECONOMIC FEASIBILITY OF USING BRUSH CONTROL TO ENHANCE OFF-SITE WATER YIELD
Creators: name: Bach, Joel P.
name: Conner, J. Richard
name: Bach, Joel P.
name: Conner, J. Richard
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: A feasibility study of brush for off-site water yield was undertaken in 1998 on the North Concho River near San Angelo, Texas. Subsequently, studies were conducted on eight additional Texas watersheds. Economic analysis was based on estimated control costs of the different options compared to the estimated rancher benefits of brush control. Control costs included initial and follow-up treatments required to reduce brush canopy to between 3 and 8%, and maintain it at the reduced level for 10 years. The state cost-share was estimated by subtracting the present value of rancher benefits from the present value of the total cost of the control program. The total cost of additional water was determined by dividing the total state cost-share if all eligible acreage were enrolled by the total added water estimated to result from the brush control program. This procedure resulted in present values of total control costs per acre ranging from $33.75 to $159.45. Rancher benefits, based on the present value of the improved net returns to typical cattle, sheep, goat, and wildlife enterprises, ranged from $8.95 to $52.12 per acre. Present values of the state cost-share per acre ranged from $21.70 to $138.85. The cost of added water estimated for the eight watersheds ranged from $16.41 to $204.05 per acre-foot averaged over each watershed.
Quasi-invariant Gaussian measures for the cubic fourth order nonlinear Schrödinger equation in negative Sobolev spaces
Creators: name: Oh, Tadahiro
name: Seong, Kihoon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 35Q55, 60H30

description: We continue the study on the transport properties of the Gaussian measures on Sobolev spaces under the dynamics of the cubic fourth order nonlinear Schrödinger equation. By considering the renormalized equation, we extend the quasi-invariance results in [30, 27] to Sobolev spaces of negative regularity. Our proof combines the approach introduced by Planchon, Tzvetkov, and Visciglia [35] with the normal form approach in [30, 27].
description: 40 pages. Updated references
FACTORS INFLUENCING OPTIMAL STOCKING RATES FROM A TENANT PERSPECTIVE
Creators: name: May, Gary J.
name: Jones, Rodney D.
name: Langemeier, Michael R.
name: Dhuyvetter, Kevin C.
name: May, Gary J.
name: Jones, Rodney D.
name: Langemeier, Michael R.
name: Dhuyvetter, Kevin C.
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy
Land Economics/Use

description: The terms of grazing lease contracts potentially influence the tenant's incentive to preserve the vegetation resource. Annual stocking rate decisions dictate the degree of overgrazing, which can be cumulative over long periods of time. The objective of this study is to identify the impact the tenant's planning horizon and cost structure specified in the lease contract has on his/her profit-maximizing stocking rate. A multi-period nonlinear programming model was developed to identify economically optimal stocking rates each year over a 24-year period. The model was solved under 1-, 4-, 8-, and 12-year leases on a "per acre" and "per head" basis. The relative importance of each lease alternative and input variable on the tenant's optimal stocking rate was ranked based on standardized ordinary least squares coefficient estimates between input values and optimal stocking rates. Planning horizon and cost structure had a minor impact on optimal stocking rates relative to non-lease factors such as livestock prices and production costs. Holding other factors constant, per acre leases generated a 2% higher average stocking rate than per head leases. Optimal stocking rates were inversely related to the length of the lease. Twelve-year lease agreements generated 18 and 13% lower optimal stocking rater than the 1-year per acre and per head lease agreements, respectively. The optimal stocking rate difference between an 8-year and a 12-year lease was negligible, suggesting the 8-year lease would provide a similar incentive to protect vegetation as a lease with a longer planning horizon.
Nucleosynthesis results from INTEGRAL
Creators: name: Weidenspointner, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Since its launch in October 2002, ESA's INTEGRAL observatory has enabled significant advances to be made in the study of Galactic nucleosynthesis. In particular, the imaging Ge spectrometer SPI combines for the first time the diagnostic powers of high resolution gamma-ray line spectroscopy and moderate spatial resolution. This review summarizes the major nucleosynthesis results obtained with INTEGRAL so far. Positron annihilation in our Galaxy is being studied in unprecented detail. SPI observations yield the first sky maps in both the 511 keV annihilation line and the positronium continuum emission, and the most accurate spectrum at 511 keV to date, thereby imposing new constraints on the source(s) of Galactic positrons which still remain(s) unidentified. For the first time, the imprint of Galactic rotation on the centroid and shape of the 1809 keV gamma-ray line due to the decay of 26Al has been seen, confirming the Galactic origin of this emission. SPI also provided the most accurate determination of the gamma-ray line flux due to the decay of 60Fe. The combined results for 26Al and 60Fe have important implications for nucleosynthesis in massive stars, in particular Wolf-Rayet stars. Both IBIS and SPI are searching the Galactic plane for young supernova remnants emitting the gamma-ray lines associated with radioactive 44Ti. None have been found so far, which raises important questions concerning the production of 44Ti in supernovae, the Galactic supernova rate, and the Galaxy's chemical evolution.
description: Invited review, to be published in the proceedings of IAU 230, "Populations of High Energy Sources in Galaxies", Aug. 14-19, 2005, Dublin, eds. E.J.A. Meurs and G. Fabbiano
Ceratolejeunea maranhensis Silva Brito et Ilk.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Ceratolejeunea
Ceratolejeunea maranhensis

description: Ceratolejeunea maranhensis Silva Brito et Ilk.-Borg.,
Nova Hedwigia 95 (3–4): 424, 2012 (see Brito & Ilkiu-Borges 2012).
TYPE: “ Brazil, Maranhão, Mirinzal municipality, Timbó Farm, non-flooded Amazonian forest, 20–50 m alt., 2°6′54.60″S and 44°50′47.58″W, on living tree, 10.8.2011, E.S.Brito 505 (holotypus, MG; isotypus, NY; E.S.Brito 503 (paratypus, MG)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
RESPONSE OF PUBLIC LAND RANCHERS TO POLICY CHANGES
Creators: name: Tanaka, John A.
name: Genter, Bradley J
name: Tanaka, John A.
name: Genter, Bradley J
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Policy analysis and planning requires that we know what the likely responses of affected parties to given policy changes. We conducted a random survey of ranchers holding 1998 public land grazing permits in all western states to determine the social and economic characteristics of permit holders, to assess their attitudes about public land policies, and to gauge their responses to three policies related to public land grazing. Respondents were asked how their operations would change due to three different levels of AUM reductions, three different grazing fee increases, and to changes in allowed season of use. The respondents were clustered into eight different types of ranchers using management objective, education, business organization, ranch size, labor, income, and financial aspects. Perceived ranching objectives included preserving family tradition, culture, and values; raising family in a rural setting; living closer to friends and family; earning a good return on investment; avoiding difficulty obtaining a job outside the ranch due to skills; protecting environmental resources; and planning to pass business on to children. Based on the clusters, different policy choices will have differential impacts depending on the type of rancher and individual management goals. Their responses to the various policy choices indicate that analysis using the refined clusters will lead to a different impact assessment compared to using average responses for the population.
Urban design considerations for the Versatile Shipyard site in North Vancouver
Creators: name: Blackwell, Ross
Publisher: name: University of British Columbia
Year: 2009

description: The aesthetic and social qualities of urban form combine to generate meaning for people as they relate to the environment in which they work, live and play. The provision of quality urban form can promote a heightened experience of place, stimulate social interaction, enhance safety, and provide people with a generally pleasant visual experience. Unfortunately, it appears to be in short supply, particularly in North America, which has led a number of theorists to dissect the problem and advance abiding principles to guide new development. While these principles are extremely valuable tenets, they are vast in number and vary depending on the priorities and focus of the theorist. It becomes difficult to choose which set of principles to follow. However, translating design theory into a practical application can not occur without careful consideration of the context and understanding the requirements of a development's potential user group. The study surveys design theory and distills the more consistent and Important points relating to quality urban design features. From this large body of knowledge, a systematic approach to the practical application of the information is developed. This approach can develop a context by which design elements can be discussed and assessed in a broader forum. The site selected as a test study area is the former Versatile Shipyard site in the City of North Vancouver. The site was selected because of its strategic location in the City, the waterfront exposure, its heritage significance, and pending redevelopment. The thesis begins by assessing design theory against two case studies: a residential development in the False Creek area of the City of Vancouver, and a similar development at the Westminster Quay in the City of New Westminster. These sites were selected as case studies because their context is relatively similar to the Shipyard site. From this, a design matrix is developed which embodies a conceptual hierarchy of theory. This is coupled with contextual background information pertaining to a specific study area and its surrounds, and the planning framework influencing its development. Using this accumulated information and design matrix, a conceptual urban design plan is proposed for the Shipyard study area. The main conclusion of this thesis is that the process of culling theoretical information into a matrix, combined with a contextual assessment, produced a design concept that improves upon planning work undertaken to date for the Shipyard study area. Furthermore, the process would appear to have a broader application to other areas of redevelopment where quality urban form is the desired goal.
Observational Properties of Proto-planetary Disk Gaps
Creators: name: Varniere, Peggy
name: Bjorkman, J. E.
name: Quillen, Adam Frank Alice C.
name: Carciofi, A. C.
name: Whitney, Barbara A.
name: Wood, Kenneth
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effects of an annular gap induced by an embedded proto-planet on disk scattered light images and the infrared spectral energy distribution. We find that the outer edge of a gap is brighter in the scattered light images than a similar location in a gap-free disk. The stellar radiation that would have been scattered by material within in the gap is instead scattered by the disk wall at the outer edge of the gap, producing a bright ring surrounding the dark gap in the images. Given sufficient resolution, such gaps can be detected by the presence of this bright ring in scattered light images. A gap in a disk also changes the shape of the SED. Radiation that would have been absorbed by material in the gap is instead reprocessed by the outer gap wall. This leads to a decrease in the SED at wavelengths corresponding to the temperature at the radius of the missing gap material and a corresponding flux increase at longer wavelengths corresponding to the temperature of the outer wall. We note that, unlike an inner hole in the disk, the presence of an annular gap does not change the bolometric IR flux; it simply redistributes the radiation, previously produced by material within the gap, to longer wavelengths. This implies that the changes in the SED generally will be smaller for gaps than holes. Although it will be difficult on the basis of the SED alone to distinguish between the presence of a gap and other physical effects, the level of changes can be sufficiently large to be measurable with current instruments (e.g., Spitzer).
description: submitted to ApJL
DEVELOPMENT AND FEDERAL GRAZING POLICY IMPACTS ON TWO COLORADO COUNTIES: A COMPARATIVE STUDY
Creators: name: Rowe, Helen Ivy
name: Barlett, E. Tom
name: Rowe, Helen Ivy
name: Barlett, E. Tom
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Land Economics/Use

description: Ranchers have concern over how federal policies such as the Endangers Species Act, the Clean Water Act, and other laws and regulations will affect the status of their ranching operations. The objectives of this study were to compare impacts of public forage losses on ranches in areas experiencing rapid growth (Routt County) and minimal growth (Moffat County) in Colorado. Thirty-five personal interviews obtained detailed cost-and-return information on public, leased, and private land. Enterprise budgets for seven distinct ranch averages were entered into a linear programming (LP) model to calculate impacts on ranches of public forage reductions of 25%, 50%, and 100%. Changes in net ranch returns and livestock production reflect the economic impact of policy changes. Grazing alternatives to hypothetical reductions in public grazing chosen by the ranchers were applied in the program to mimic rancher decisions. The study found, as would be expected, that larger ranches with more public forage dependency would be the most affected by public forage losses. Those with fewer sources of alternative forage, and ranches with low costs and high returns, experienced more difficulty in coping with the grazing reductions on public land. Routt County, with its higher dependence on public forage and minimal alternative forage sources, would be more affected by federal forage reduction than Moffat County.
Surrounding the solution of a Linear System of Equations from all sides
Creators: name: Steinerberger, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Suppose $A \in \mathbb{R}^{n \times n}$ is invertible and we are looking for the solution of $Ax = b$. Given an initial guess $x_1 \in \mathbb{R}$, we show that by reflecting through hyperplanes generated by the rows of $A$, we can generate an infinite sequence $(x_k)_{k=1}^{\infty}$ such that all elements have the same distance to the solution, i.e. $\|x_k - x\| = \|x_1 - x\|$. If the hyperplanes are chosen at random, averages over the sequence converge and $$ \mathbb{E} \left\| x - \frac{1}{m} \sum_{k=1}^{m}{ x_k} \right\| \leq \frac{1 + \|A\|_F \|A^{-1}\|}{\sqrt{m}} \cdot\|x-x_1\|.$$ The bound does not depend on the dimension of the matrix. This introduces a purely geometric way of attacking the problem: are there fast ways of estimating the location of the center of a sphere from knowing many points on the sphere? Our convergence rate (coinciding with that of the Random Kaczmarz method) comes from averaging, can one do better?
[Brev til DKNVS]
Creators: name: Zorn V. Plobsheim, Friedrich A.
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1781

description: Takkebrev for innvalg
description: 2 brev. Polydoc nr. 1: 831. Polydoc nr. 2: 218.
Quantum-Classical Dynamical Brackets
Creators: name: Amin, Mustafa
name: Walton, Mark A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the problem of constructing a general hybrid quantum-classical bracket from a partial classical limit of a full quantum bracket. Introducing a hybrid composition product, we show that such a bracket is the commutator of that product. From this we see that the hybrid bracket will obey the Jacobi identity and the Leibniz rule provided the composition product is associative. This suggests that the set of hybrid variables belonging to an associative subalgebra with the composition product will have consistent quantum-classical dynamics. This restricts the class of allowed quantum-classical interaction Hamiltonians. Furthermore, we show that pure quantum or classical variables can interact in a consistent framework, unaffected by no-go theorems in the literature or the restrictions for hybrid variables. In the proposed scheme, quantum backreaction appears as quantum-dependent terms in the classical equations of motion.
description: Published in Physical Review A, minor revisions to v3, 11 pages
Root systems and generalized associahedra
Creators: name: Fomin, Sergey
name: Reading, Nathan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20F55

description: These lecture notes for the IAS/Park City Graduate Summer School in Geometric Combinatorics (July 2004) provide an overview of root systems, generalized associahedra, and the combinatorics of clusters. Lectures 1-2 cover classical material: root systems, finite reflection groups, and the Cartan-Killing classification. Lectures 3-4 provide an introduction to cluster algebras from a combinatorial perspective. Lecture 5 is devoted to related topics in enumerative combinatorics.
description: 69 pages, many figures. Version 3 is the final version appearing in the PCMI Lecture Series volume.
[Brev til DKNVS]
Creators: name: Speilberg, Hans
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1781

description: Har overlevert sølvmedalje til J.Anders Jørgensen, hvis kvittering er vedlagt, dat. 1781-10-21
Combined Lorentz symmetry: lessons from superfluid 3He
Creators: name: Volovik, G. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the possibility of the scenario in which the $P$, $T$ and Lorentz symmetry of the relativistic quantum vacuum are all the combined symmetries. These symmetries emerge as a result of the symmetry breaking of the more fundamental $P$, $T$ and Lorentz symmetries of the original vacuum, which is invariant under separate groups of the coordinate transformations and spin rotations. The condensed matter vacua (ground states) suggest two possible scenarios of the origin of the combined Lorentz symmetry, both are realized in the superfluid phases of liquid $^3$He: the $^3$He-A scenario and the $^3$He-B scenario. In these scenarios the gravitational tetrads are considered as the order parameter of the symmetry breaking in the quantum vacuum. The $^3$He-B scenarios applied to the Minkowski vacuum leads to the continuous degeneracy of the Minkowski vacuum with respect to the $O(3,1)$ spin rotations. The symmetry breaking leads to the corresponding topological objects, which appear due to the nontrivial topology of the manifold of the degenerate Minkowski vacua, such as torsion strings. The 4-fold degeneracy of the Minkowski vacuum with respect to discrete $P$ and $T$ symmetries suggests that the Weyl fermions are described by four different tetrad fields: the tetrad for the left-handed fermions, the tetrad for the right-handed fermions, and the tetrads for their antiparticles. This may lead to the gravity with several metric fields, so that the parity violation may lead to the breaking of equivalence principle. Finally we considered the application of the gravitational tetrads for the solution of the cosmological constant problem.
description: 8 pages, no figures, accepted in J. Low Temp. Phys
Ceratolejeunea saroltae Pocs, Polish Bot. J.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Ceratolejeunea
Ceratolejeunea saroltae

description: Ceratolejeunea saroltae Pócs,
Polish Bot. J. 56 (2): 150, 2011 (see Pócs 2011a).
TYPE: “ MADAGASCAR, Toamasina Province, Maromizaha forest, mossy montane rainforest with bamboo (Nastus sp.) undergrowth on the summit ridge of Mt. Maromizaha, south of Andasibe Nat. Park, 1080–1214 m a.s.l., on twigs, Sarolta Pócs 9890/BJ, 26 Aug. 1998 (HOLOTYPE: EGR)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
Ceratolejeunea temnantha M. E. Reiner, Cryptog. Bryol.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Ceratolejeunea
Ceratolejeunea temnantha

description: Ceratolejeunea temnantha (Spruce) M.E.Reiner,
Cryptog. Bryol. 32 (2): 95, 2011 (see Reiner-Drehwald 2011). BASIONYM: Lejeunea temnantha Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 250, 1884 “ Potamo-Lejeunea ” (see Spruce 1884).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
Charged Anisotropic Spherical Collapse in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ Gravity
Creators: name: Sharif, M.
name: Naseer, Tayyab
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper discusses the gravitational collapse of dynamical self-gravitating fluid distribution in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where $\mathcal{Q}=\mathcal{R}_{φ\vartheta}\mathcal{T}^{φ\vartheta}$. In this regard, we assume a charged anisotropic spherical geometry involving dissipation flux and adopt standard model of the form $\mathcal{R}+Φ\sqrt{\mathcal{T}}+Ψ\mathcal{Q}$, where $Φ$ and $Ψ$ symbolize real-valued coupling parameters. The Misner-Sharp as well as Müler-Israel Stewart mechanisms are employed to formulate the corresponding dynamical and transport equations. We then interlink these evolution equations which help to study the impact of state variables, heat dissipation, modified corrections and charge on the collapse rate. The Weyl scalar is further expressed in terms of the modified field equations. The necessary and sufficient condition of conformal flatness of the considered configuration and homogeneous energy density is obtained by applying some constraints on the model along with disappearing charge and anisotropy. Finally, we discuss different cases to investigate how the spherical matter source is affected by the charge and modified corrections.
description: 30 pages, no figure
Exponential functionals of Brownian motion, I: Probability laws at fixed time
Creators: name: Matsumoto, Hiroyuki
name: Yor, Marc
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J65 (Primary)

description: This paper is the first part of our survey on various results about the distribution of exponential type Brownian functionals defined as an integral over time of geometric Brownian motion. Several related topics are also mentioned.
description: Published at http://dx.doi.org/10.1214/154957805100000159 in the Probability Surveys (http://www.i-journals.org/ps/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Cheilolejeunea fulva M. Wigginton, J. Bryol.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Cheilolejeunea
Cheilolejeunea fulva

description: ** Cheilolejeunea fulva (R.M.Schust.) W.Ye et R.L.Zhu ex M.Wigginton,
J. Bryol. 34 (4): 275, 2012, nom. inval. ICN Art. 41.5; basionym not cited (see Wigginton 2012a). BASIONYM: Aureolejeunea fulva R.M.Schust., Phytologia 39 (4): 429, 1978 (see Schuster 1978a).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
REGIONAL-LEVEL ECONOMIC IMPACTS OF GRAZING POLICY CHANGES: A CASE STUDY FROM OWYHEE COUNTY, IDAHO
Creators: name: Darden, Tim D.
name: Rimbey, Neil R.
name: Harp, Aaron J.
name: Harris, Thomas R.
name: Darden, Tim D.
name: Rimbey, Neil R.
name: Harp, Aaron J.
name: Harris, Thomas R.
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Land Economics/Use

description: Regional economic impact models are important tools used to analyze the impacts of policy changes to a regional, state, county, or local economies. The National Environmental Policy Act requires economic analysis in preparing environmental impact statements to show the effects of policy alternatives on local economies. An input-output model was constructed for Owyhee County, Idaho, using farm- and ranch-level economic information to modify and "localize" the county IMPLAN model. This paper shows why an "out-of-the-box" model might not always be the best way to accurately account for economic impacts of policy changes on communities dependent on ranching and federal grazing. Results show that disparities exist between the hybrid model built for Owyhee County and an IMPLAN model of Owyhee County. Alternative grazing policy scenarios analyzed in the Owyhee Resource Management Plan and Final Environmental Impact Statement are used to show and compare results between the two models.
Fast Enumeration of Combinatorial Objects
Creators: name: Ryabko, Boris
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: The problem of ranking can be described as follows. We have a set of combinatorial objects $S$, such as, say, the k-subsets of n things, and we can imagine that they have been arranged in some list, say lexicographically, and we want to have a fast method for obtaining the rank of a given object in the list. This problem is widely known in Combinatorial Analysis, Computer Science and Information Theory. Ranking is closely connected with the hashing problem, especially with perfect hashing and with generating of random combinatorial objects. In Information Theory the ranking problem is closely connected with so-called enumerative encoding, which may be described as follows: there is a set of words $S$ and an enumerative code has to one-to-one encode every $s \in S$ by a binary word $code(s)$. The length of the $code(s)$ must be the same for all $s \in S$. Clearly, $|code (s)|\geq \log |S|$. (Here and below $\log x=\log_{2}x)$.) The suggested method allows the exponential growth of the speed of encoding and decoding for all combinatorial problems of enumeration which are considered, including the enumeration of permutations, compositions and others.
[Brev til DKNVS]
Creators: name: Modéer, Adolph
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1782

description: Vedr. oversendelse av skrifter, bl.a.
description: 2 brev. Polydoc nr. 1: 836. Polydoc nr. 2: 223.
Cheilolejeunea gottscheana C. J. Bastos, J. Bryol.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Cheilolejeunea
Cheilolejeunea gottscheana

description: Cheilolejeunea gottscheana C.J.Bastos,
J. Bryol. 34 (4): 316, 2012 (see Bastos 2012b). NOM. NOV. PRO Strepsilejeunea lindenbergii Steph., Hedwigia 35 (3): 130, 1896 (see Stephani 1896). BLOCKING NAME: Cheilolejeunea lindenbergii (Gottsche) Mizut., J. Hattori Bot. Lab. 33: 326, 1970 (see Mizutani 1970).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
Fast and exact audit scheduling optimization
Creators: name: Motl, Jan
name: Kordík, Pavel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: General Finance (q-fin.GN)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: This article is concerned with the cost and time effective scheduling of financial auditors with Integer Linear Programming. The schedule optimization takes into account 13 different constraints, staff scarcity, frequent alterations of the input data with the need to minimize the changes in the generated schedule, and scaling issues. We compared two exact formulations of the problem and we found a multi-commodity network flow formulation to be 24 times faster than a three-dimensional formulation. The delivered implementation reduced time to the first schedule from 3 man-days to 1 hour and the schedule update time from 1 man-day to 4 minutes.
Topologically Protected Steady Cycles in an Ice-Like Mechanical Metamaterial
Creators: name: Merrigan, Carl
name: Nisoli, Cristiano
name: Shokef, Yair
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Competing ground states may lead to topologically constrained excitations such as domain walls or quasiparticles, which govern metastable states and their dynamics. Domain walls and more exotic topological excitations are well studied in magnetic systems such as artificial spin ice, in which nanoscale magnetic dipoles are placed on geometrically frustrated lattices, giving rise to highly degenerate ground states. We propose a mechanical spin-ice constructed from a lattice of floppy, bistable square unit cells. We compare the domain wall excitations that arise in this metamaterial to their magnetic counterparts, finding that new behaviors emerge in this overdamped mechanical system. By tuning the ratios of the internal elements of the unit cell, we control the curvature and propagation speed of internal domain walls. We change the domain wall morphology from a binary, strictly spin-like regime, to a more continuous, elastic regime. In the elastic regime, we inject, manipulate, and expel domain walls via textured forcing at the boundaries. The system exhibits dynamical hysteresis, and we find a first-order dynamical transition as a function of the driving frequency. We demonstrate a forcing protocol that produces multiple, topologically-distinct steady cycles, which are protected by the differences in their internal domain wall arrangements. These distinct steady cycles rapidly proliferate as the complexity of the applied forcing texture is increased, thus suggesting that such mechanical systems could serve as useful model systems to study multistability, glassiness, and memory in materials.
description: 15 pages, 14 figures
Effect of therapeutic art on improvement of self-esteem and self-control of former inmates at the Christian Prison Ministry Foundation
Creators: name: Jirawan Kaewseeyong
name: Siriluck Suppapitiporn
Publisher: name: Faculty of Medicine Chulalongkorn University
Year: 2021
Subjects: Therapeutic art
art therapy
self-esteem
self-control
former offenders

description: Chulalongkorn Medical Bulletin, 3, 1, 033-042
Finite-Size Scaling in the Energy-Entropy Plane for the 2D +- J Ising Spin Glass
Creators: name: Fisch, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For $L \times L$ square lattices with $L \le 20$ the 2D Ising spin glass with +1 and -1 bonds is found to have a strong correlation between the energy and the entropy of its ground states. A fit to the data gives the result that each additional broken bond in the ground state of a particular sample of random bonds increases the ground state degeneracy by approximately a factor of 10/3. For $x = 0.5$ (where $x$ is the fraction of negative bonds), over this range of $L$, the characteristic entropy defined by the energy-entropy correlation scales with size as $L^{1.78(2)}$. Anomalous scaling is not found for the characteristic energy, which essentially scales as $L^2$. When $x= 0.25$, a crossover to $L^2$ scaling of the entropy is seen near $L = 12$. The results found here suggest a natural mechanism for the unusual behavior of the low temperature specific heat of this model, and illustrate the dangers of extrapolating from small $L$.
description: 9 pages, two-column format; to appear in J. Statistical Physics
Radio Spectral Index Study of the SNRs OA184 and VRO42.05.01
Creators: name: Leahy, Denis
name: Tian, Wenwu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: New images of the Supernova Remnants (SNRs) OA184 and VRO42.05.01 are presented at 408 MHz and 1420 MHz, from the Canadian Galactic Plane Survey (CGPS) data. The SNRs' flux densities at both 408 MHz and 1420 MHz are found and corrected for flux from compact sources within the SNRs. The integrated flux-density based spectral indices (S$_ν$$\propto$$ν$$^{-α}$) are 0.25+-0.03 for OA184 and 0.36+-0.06 for VRO42.05.01. These agree with the respective T-T plot spectral indexes of 0.23+-0.06 and 0.36+-0.03. OA184's spectral index is smaller than previously published values. The older flux density values of OA184 from lower resolution data include a contribution from a non-SNR ridge emission region and from compact sources within OA184. Subtracting these contributions results in a spectral index of 0.32+-0.06 (38 MHz to 2695 MHz) or 0.28+-0.06 (408 MHz to 2695 MHz). Correction of published fluxes for point sources for VRO.42.05.01 results in a spectral index of 0.32+-0.05 for 38 MHz to 2695 MHz. We also find spatial variations of spectral index. For OA184 $α$ varies from 0.1 to 0.3 (with errors $\simeq$0.1). For VRO42.05.01, the shell region has $α$=0.31 and the wing region has $α=0.47$ (with errors $\simeq$0.03).
description: 13 pages, 5 tables, 4 figures, conditional accepted for A&A
Cheilolejeunea hyalomarginata R. L. Zhu et Frank Mull., Bryologist
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Cheilolejeunea
Cheilolejeunea hyalomarginata

description: Cheilolejeunea hyalomarginata R.L.Zhu et Frank Müll.,
Bryologist 115 (2): 218, 2012 (see Zhu & Müller 2012).
TYPE: “ NEW CALEDONIA. Mont Panié, Aufstieg entlang des Wanderwegs von der Strasse RPN 3 bis zum Gipfel, ca. 900–1300 m, sehr feuchter Regenwald, epiphyll, 14 Sept. 2001, F. Müller NC18L (holotype: HSNU; isotype: DR)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
From staying alive to taking control : gender and water resources management in the Bhal, Gujarat, India
Creators: name: Blennerhassett, Natalie
Publisher: name: University of British Columbia
Year: 2009

description: In Gujarat, India, the emerging participatory Water Resource Management (WRM) policy proposes the establishment of new village-level institutions. The shift towards decentralisation is indeed welcome; however, gender has for the most part been either inadequately integrated or limited to discussion of women's formal participation in these institutions. In select rural villages of the coastal arid-saline region of Gujarat known as the Bhal, the thesis examines the implications, applications and potential contributions of women's participation in potable WRM initiatives. The case study concerns two Gujarati grassroots Non-Governmental Organisations (NGOs), Utthan and Mahiti, that have facilitated two rainwater harvesting initiatives: common property Plastic Lined Ponds (PLPs) and private property Roof Water Collection Tanks (RWCTs). Although the development initiatives are different, both the NGOs have fully encouraged an integrated gender WRM approach via village-level institutional management of local water resources. The mainstream Gender, Environment and Development (GED) literature suggests that local participation, particularly of village women who previously had no official roles or responsibilities, can be increased by integrating women into village-level institutions which govern the water resources. However, the research in the Bhal revealed that simply integrating women into village-level WRM institutions, although beneficial, did not always achieve the dual goal of increased access to and control of water resources with gender equitable participation. Yet, in a few of the study villages, where women took collective action, they did succeed in taking a leadership role in WRM and redistributing power along gender lines. The case study demonstrates that an integrated gender component is important not only for increasing the efficiency and sustainability of water resources, but also.because it provides both the context and the content of many village women's struggles.
On the shape of nucleons at high energies
Creators: name: Nekrasov, M. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A scenario of evolution of the shape of nucleons with increasing energy is described in the framework of extended parton model, which consistently takes into account the transverse motion of the partons. At the energy $E$ up to LHC, the nucleons have the form of a spheroid which expands as $\sqrt{\ln \!E}$ in the transverse directions and grows linearly in $E$ in the longitudinal direction. With a further increase in the energy a mode of correlated behavior of the partons is established, which stops the longitudinal growth. Simultaneously, the expansion in the transverse directions changes to $\ln \!E$, and a hollow mostly free of partons is formed inside the nucleons along the central axis in the direction of their motion. Numerical estimates of the corresponding parameters are obtained.
description: 13 pages, improved version
Deep learning for the prediction of novel Coronavirus
Creators: name: Nimisha Ghosh
name: Indrajit Saha
name: Debasree Maity
name: Arijit Seal
name: Plewczynski, Dariusz
Publisher: name: F1000 Research Limited
Year: 2020

description: SARS-CoV-2 generally known as COVID-19 is causing havoc worldwide. SARS-CoV-2 has high transmission rate and thus requires an early prediction and proper identification for subsequent treatment. However, SARS-CoV-2 seems to adapt and sustain in different kinds of environment, making it difficult to predict. Moreover, there are other viruses like SARS-CoV-1 and MERS of the same family Coronaviridae so a predictor is highly required to differentiate them based on their genomic sequences. To mitigate this problem, a Long Short Term Memory based predictor is proposed based on the framework of deep learning to identify an unknown sequence of these viruses. Initially, k-mer technique is applied to create motifs in order to generate Bag-of-Words and subsequent numerical sequence vector of given virus sequence. The proposed predictor is not only validated for the dataset using cross-validation partition but also for an unseen test dataset of SARS-CoV-2 sequences and sequences from SARS-CoV-1 and MERS as well. To verify the efficacy of the predictor, it has been compared with other prediction techniques based on Linear Discriminant Analysis, Random Forests and Gradient Boosting Method. The proposed predictor achieves 100% prediction accuracy on validation dataset and test datasets. It also shows superior results over other prediction techniques.
Variability and periodicity of field M dwarfs revealed by multichannel monitoring
Creators: name: Rockenfeller, Boris
name: Bailer-Jones, Coryn A. L.
name: Mundt, Reinhard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present simultaneous, multiband monitoring of 19 field M dwarfs (spectral types M2-M9). Significant variability was found in seven objects in at least one out of the three channels I, R and G. Two objects, LHS370 (M5V) and 2M1707+64 (M9V), show periods of 5.9+-2.0 and 3.65+-0.1 hours respectively. On account of the agreement with the typical values of v*sin(i) published for M dwarfs (Mohanty & Basri 2003), we claim these to be the objects' rotation periods. In the case of 2M1707+64 we furthermore find evidence for the presence of magnetically-induced cool spots as the reason for the observed variability (at a temperature contrast of 4-8 percent, with a projected surface coverage factor of less than 0.075) and can rule out the scenario of dust clouds (as represented by the COND or DUSTY models). Comparing the frequency of occurrence of variability in this and various L dwarf samples published over the past few years, we find that variability is more common in field L dwarfs than in field M dwarfs. This implies a change in the physical nature and/or extent of surface features when moving from M to L dwarfs.
description: 15 pages, 14 figures, accepted for publication by A&A
[Brev til DKNVS]
Creators: name: Støren, Christopher
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1782

description: Vedr. ev. pris for en skolelærer i Meråker, Ole Thomassen, som har laget øl av s.k. talg-gress (=ormeblom?) og også bakt brød av samme plante
Cheilolejeunea microscypha M. Wigginton 2012
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Cheilolejeunea
Cheilolejeunea microscypha

description: Cheilolejeunea microscypha (Hook.f. et Taylor) M.Wigginton,
J. Bryol. 34 (4): 269, 2012 (see Wigginton 2012a). BASIONYM: Jungermannia microscypha Hook. f. et Taylor, London J. Bot. 4: 90, 1845 (see Hooker & Taylor 1845).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 64, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611