cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Social impacts of mine closure : engaging employees and host communities in planning for closure
Creators: name: Costa, S.
Publisher: name: The University of British Columbia
Year: 2016

description: Planning for mine closure usually focuses on a detailed reclamation plan designed by experts to mitigate environmental impacts; however, less is known about the social aspects of mine closure and how to mitigate the socio-economic impacts of closing a mine. Industry best practices highlight the need to engage host communities in planning for mine closure, still there are limited case studies that show what works best to face the social challenges of closure. New Gold’s Cerro San Pedro Mine, located in Mexico has taken a participatory approach to define the company’s Integrated Closure Strategy, engaging with key communities of interest to understand the social impacts of closure and find feasible economic alternatives for a local and regional longer-term development. This paper provides an overview of the engagement process that the Company undertook to discuss aspects of mine closure and the future without the mine with host communities and employees. The engagement process is part of a broader approach to integrated closure planning and was led by a reputable non-governmental organisation specialised in creating spaces of dialogue and consensus-building. The process used both qualitative and quantitative methods. Findings of this engagement process revealed the specific challenges and opportunities to strengthen economic activities alternative to mining such as agriculture, tourism, and small business development; in addition to identifying potential partners. Outcomes of the engagement process may be summarised as: i) raising awareness and responsibility of mine closure, both environmental and social impacts, ii) building a common vision of the future without the mine, iii) reaching consensus among different communities of interest, enabling participation and ownership of a shared disposition that addresses social impacts of mine closure. Lessons learned include, among others, the relevance of engaging employees and communities, not only in implementing mine closure, but also in identifying social impacts of mine closure and building together a feasible sustainability path forward.
Fluctuation-driven Coulomb drag in interacting quantum dot systems
Creators: name: Sierra, Miguel A.
name: Sánchez, David
name: Jauho, Antti-Pekka
name: Kaasbjerg, Kristen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coulomb drag between nanoscale conductors is of both fundamental and practical interest. Here, we theoretically study drag in a double quantum-dot (QD) system consisting of a biased drive QD and an unbiased drag QD coupled via a direct interdot Coulomb interaction. We demonstrate that the Coulomb drag is driven by the charge fluctuations in the drive QD, and show how the properties of the associated quantum noise allow to distinguish it from, e.g., shot-noise driven drag in circuits of weakly interacting quantum conductors. In the strong-interaction regime exhibiting an orbital ("pseudospin") Kondo effect, the drag is governed by charge fluctuations induced by pseudospin-flip cotunneling processes. The quenching of pseudospin-flip processes by Kondo correlations are found to suppress the drag at low bias and introduce a zero-bias anomaly in the second-order differential transconductance. Finally, we show that the drag is maximized for values of the interdot interaction matching the lead couplings. Our findings are relevant for the understanding of drag in QD systems and provide experimentally testable predictions in different transport regimes.
description: Published version: 6 pages, 5 figures, and supplemental material
EXTRACTION OF CURCUMIN
Creators: name: Joshi, Naresh Dilip
name: Kulkarni Aditya Arvindrao
Publisher: name: F1000 Research Limited
Year: 2019

description: Economic part of turmeric is rhizomes. Rhizomes are horizontal underground stems. Since ancient time we used turmeric as a medicine. Mostly in India people use turmeric as medicine in Ayurveda as Anti-bacterial, Anti-oxidant, Anti-inflamentary, etc. Curcumin is a colour pigment present in turmeric which gives yellow colour to the turmeric as well as medicinal properties. Curcumin has anti-cancerous medicinal property it has ability to cure the cancer. Hence curcumin can be replaced against expensive medicinal treatment therapy of cancer. Here we are working on extraction of curcumin from turmeric in low cost through biotechnology. We extracted 3.9% of the curcumin using acetone as solvent by soxhalet apparatus method. Indian farmers can sold curcumin as secondary most valuable product compare to turmeric in the market. For Indian farmer curcumin work as a Agrigold.
Functional Schroedinger and BRST Quantization of (1+1)--Dimensional Gravity
Creators: name: Benedict, E.
name: Jackiw, R.
name: Lee, H. -J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the quantization of pure string--inspired dilaton--gravity in $(1+1)$--dimensions, and of the same theory coupled to scalar matter. We perform the quantization using the functional Schroedinger and BRST formalisms. We find, both for pure gravity and the matter--coupled theory, that the two quantization procedures give inequivalent ``physical'' results.
description: 40 pages, Latex
Large contribution of Fermi arcs to the conductivity of topological metals
Creators: name: Breitkreiz, Maxim
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Surface-state contributions to the dc conductivity of most homogeneous metals exposed to uniform electric fields are usually as small as the system size is large compared to the lattice constant. In this work, we show that surface states of topological metals can contribute with the same order of magnitude as the bulk even in large systems. This effect is intimately related to the intrinsic anomalous Hall effect, in which an applied voltage induces chiral surface-state currents proportional to the system size. Unlike the anomalous Hall effect, the large contribution of surface states to the dc conductivity is also present in time-reversal invariant Weyl semimetals, where the surface states come in counter-propagating time-reversed pairs. While the Hall voltage vanishes in the presence of time-reversal symmetry, the twinned chiral surface currents develop similarly as in the time-reversal broken case. For this effect to occur, the relaxation length associated with scattering between time-reversed partner states needs to be larger than the separation of contributing surfaces, which results in a characteristic size dependence of the resistivity and a highly inhomogeneous current-density profile across the sample.
description: 6+1 pages, 4 figures
Publication Trends in Drug Delivery and Magnetic Nanoparticles
Creators: name: Ebrahim, Saba Ale
name: Amirhossein Ashtari
name: Pedram, Maysam Zamani
name: Ebrahim, Nader Ale
Publisher: name: figshare
Year: 2019
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 100705 Nanoelectronics
subject: FOS: Nanotechnology
subject: 100703 Nanobiotechnology
subject: 100708 Nanomaterials
subject: 100709 Nanomedicine

description: This bibliometric study investigated the public trends in the fields of nanoparticles which is limited to drug delivery and magnetic nanoparticles’ literature published from 1980 to October 2017. The data were collected from the Web of Science Core Collections, and a network analysis of research outputs was carried out to analyse the research trends in the nanoparticles literature. Nanoparticles and its applications are progressing in recent years. The results show that documents in the field of nanoparticles in chemistry and material science have improved in citation rate, as the authors were researching in multidisciplinary zones. Top-cited documents are mainly focusing on drug delivery, magnetic nanoparticles and iron oxide nanoparticles which are also the top research keywords in all papers published. Top-cited papers are mostly published in Biomaterials journal which so far has published 12% of top-cited articles. Although research areas such as contrast agents, quantum dots, and nanocrystals are not considered as the top-ranked keywords in all documents, these keywords received noticeable citations. The trends of publications on drug delivery and magnetic nanoparticles give a general view on future research and identify potential opportunities and challenges.
Phonon-Mediated Anomalous Dynamics of Defects
Creators: name: Najafi, Ali
name: Golestanian, Ramin
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Dynamics of an array of line defects interacting with a background elastic medium is studied in the linear regime. It is shown that the inertial coupling between the defects and the ambient phonons leads to an anomalous response behavior for the deformation modes of a defect-lattice, in the form of anisotropic and anomalous mass and elastic constants, resonant dissipation through excitation of phonons, and instabilities. The case of a single fluctuating line defect is also studied, and it is shown that it could lead to formation of shock waves in the elastic medium for sufficiently high frequency deformation modes.
description: 4 pages, 2 eps figues included
Koeleria capensis Nees
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Koeleria
Koeleria capensis

description: Koeleria capensis (Thunb.) Nees  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ, AZ, NZ; 1 700–5 000 m. Distribution: II.
 Voucher: Timau Track, Alt. 3 421 m, 21 Jan. 2015, SAJIT 002763 (HIB).
References: Clayton (1970), Young & Young (1983), Young & Peacock (1985), Bussmann (1994), Abdi (2013), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
title: Breitenverhältnis und Querschnittsform von radial beaufschlagten Schaufelrädern mit kleiner radialer Erstreckung der Schaufeln
Creators: name: Kretschmer, Rudolf
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: The previously described investigations by Fr. Gräger on pseudo-axial pumps showed incidentally, that the rate of the axial width b and the radial extension [Delta]r = r2 - r1 of the pseudo-axial vanes must not exceed a certain value unless the efficiency is to sink unallowably. The following report is to contribute to the further information on these influences.
Best Unbiased Estimates for the Microwave Background Anisotropies
Creators: name: Grishchuk, L. P.
name: Martin, Jérôme
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is likely that the observed distribution of the microwave background temperature over the sky is only one realization of the underlying random process associated with cosmological perturbations of quantum-mechanical origin. If so, one needs to derive the parameters of the random process, as accurately as possible, from the data of a single map. These parameters are of the utmost importance, since our knowledge of them would help us to reconstruct the dynamical evolution of the very early Universe. It appears that the lack of ergodicity of a random process on a 2-sphere does not allow us to do this with arbitrarily high accuracy. We are left with the problem of finding the best unbiased estimators of the participating parameters. A detailed solution to this problem is presented in this article. The theoretical error bars for the best unbiased estimates are derived and discussed.
description: 26 pages, revtex; minor modifications, 8 new references, to be published in Phys. Rev. D
Metódos de Monitoramento Ambiental: análise cienciométrica
Creators: name: Almeida, Cilene
name: Emeide Nóbrega Duarte
name: Neto, José Domingos Padilha
name: Casimiro, Adelaide Helena Targino
Publisher: name: figshare
Year: 2019
Subjects: subject: 80707 Organisation of Information and Knowledge Resources
subject: FOS: Media and communications

description: O objetivo desta pesquisa é identificar como as metodologias adotadas para monitoramento ambiental veiculadas nos artigos de periódicos, teses, dissertações e anais de eventos obtidos pelos pesquisadores, integrantes dos grupos de pesquisa em Inteligência Organizacional, registrados no Diretório do CNPq. Como o método, se caracteriza como um estudo cienciométrico, do tipo documental, realizado no ambiente da web, para o meio da produção científica, com o uso da Análise de Redes Sociais. Foram recuperados 17 grupos de pesquisa em Inteligência Organizacional e Inteligência Competitiva, perfazendo 132 pesquisadores doutores. Os resultados estão com uma análise dos Currículos Lattes demonstrados por um exame de efeito humano composto por artigos de periódicos e anais, dissertações e teses, produzidas por membros doutores, relacionados com a Inteligência Organizacional e Inteligência Competitiva. A partir da análise da produção científica, foram selecionadas as informações sobre métodos de monitoramento ambiental. Entre as metodologias mais recentes estão a produção científica destacada: análise de cenário, mapa de competências, clipping, SWOT, mapa de informação, balanced scorecard, benchmarking, monitoramento ambiental na web e roadmapping de tecnologia.
One-Bit Sigma-Delta MIMO Precoding
Creators: name: Shao, Mingjie
name: Ma, Wing-Kin
name: Li, Qiang
name: Swindlehurst, Lee
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Coarsely quantized MIMO signalling methods have gained popularity in the recent developments of massive MIMO as they open up opportunities for massive MIMO implementation using cheap and power-efficient radio-frequency front-ends. This paper presents a new one-bit MIMO precoding approach using spatial Sigma-Delta ($ΣΔ$) modulation. In previous one-bit MIMO precoding research, one mainly focuses on using optimization to tackle the difficult binary signal optimization problem that arises from the precoding design. Our approach attempts a different route. Assuming angular MIMO channels, we apply $ΣΔ$ modulation---a classical concept in analog-to-digital conversion of temporal signals---in space. The resulting $ΣΔ$ precoding approach has two main advantages: First, we no longer need to deal with binary optimization in $ΣΔ$ precoding design. Particularly, the binary signal restriction is replaced by peak signal amplitude constraints. Second, the impact of the quantization error can be well controlled via modulator design and under appropriate operating conditions. Through symbol error probability analysis, we reveal that the very large number of antennas in massive MIMO provides favorable operating conditions for $ΣΔ$ precoding. In addition, we develop a new $ΣΔ$ modulation architecture that is capable of adapting the channel to achieve nearly zero quantization error for a targeted user. Furthermore, we consider multi-user $ΣΔ$ precoding using the zero-forcing and symbol-level precoding schemes. These two $ΣΔ$ precoding schemes perform considerably better than their direct one-bit quantized counterparts, as simulation results show.
Additional file 1 of Trace amine-associated receptor 1 regulation of Kv1.4 channels in trigeminal ganglion neurons contributes to nociceptive behaviors
Creators: name: Zhang, Yuan
name: Wang, Hua
name: Sun, Yufang
name: Huang, Zitong
name: Tao, Yu
name: Wang, Yiru
name: Jiang, Xinghong
name: Tao, Jin
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
DS19 presentation materials
Creators: name: Micluța-Câmpeanu, Sebastian
Publisher: name: figshare
Year: 2019
Subjects: subject: 10109 Ordinary Differential Equations, Difference Equations and Dynamical Systems
subject: FOS: Mathematics
subject: 10204 Dynamical Systems in Applications
subject: Computational Physics

description: Here are the materials for the SIAM DS19 presentation entitled "Large-Scale Numerical Investigations into the
Dynamics of Nonlinear Classical Systems". The dataset used for all the computations is included as the binary file graph.jls and it requires julia 1.1.0 and the two julia packages linked bellow to be correctly read. See the DS19Presentation GitHub repository linked bellow for more details on how to reproduce the presented figures.
Magnetic-Resonance-Induced Pseudo-electric Field and Giant Current Response in Axion Insulators
Creators: name: Yu, Jiabin
name: Zang, Jiadong
name: Liu, Chao-Xing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A quantized version of the magnetoelectric effect, known as the topological magnetoelectric effect, can exist in a time-reversal invariant topological insulator with all its surface states gapped out by magnetism. This topological phase, called the axion insulator phase, has been theoretically proposed but is still lack of conclusive experimental evidence due to the small signal of topological magnetoelectric effect. In this work, we propose that the dynamical in-plane magnetization in an axion insulator can generate a "pseudo-electric field", which acts on the surface state of topological insulator films and leads to the non-zero response current. Strikingly, we find that the current at magnetic resonance (either ferromagnetic or anti-ferromagnetic) is larger than that of topological magnetoelectric effect by several orders of magnitude, and thereby serves as a feasible smoking gun to confirm the axion insulator phase in the candidate materials.
description: 9 pages and 2 figures
title: Die Gleichungen der Plattenbiegung als kanonisches System in tensorieller Darstellung
Creators: name: Günther, Wilhelm
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: Die Gleichungen der Kirchhoffschen Plattentheorie werden in tensorieller Form hergeleitet und in die Gestalt eines Systems kanonischer Gleichungen gebracht. Dem Referat ist eine kurze Zusammenfassung der wichtigsten Bezeichnungen und Rechenregeln der Tensorrechnung vorangestellt. Es wird darauf hingewiesen, nach welcher Richtung hin ein Ausbau der mathematischen Theorien wünschenswert wäre, um die von eindimensionalen Sonderfällen her bekannte Zentralstellung des "kanonischen Variationsproblems" auch für mehrdimensionale Elastizitätsprobleme zu bestätigen.
description: The equations of thin elastic plates (Kirchhoff's theory) are derived in tensor notation and transformed into a canonical system. A brief preface of the most important symbols and rules of tensor calculus is added to the report. It is mentioned in which lines a development of mathematical theory is desirable in order to confirm the dominating position of the canonical formalism (which is known in case of one dimension) for the theory of elasticity in two (or three) dimensions.
Assessing the level of difficulty of vegetation establishment on reclaimed sites
Creators: name: Cranston, B. H.
name: Waterman, L. P.
Publisher: name: The University of British Columbia
Year: 2016

description: Regulatory approvals for oil sands mining in Alberta, Canada, require that disturbed land be reclaimed to a self-sustaining, locally common boreal forest ecosystem; biodiversity is also a key stakeholder concern. Not all ecosites are readily reclaimed, yet conceptual reclamation plans often make assumptions that discount this challenge. To this end, we have developed a ranking system that uses measurable values to determine the level of difficulty to establish target vegetation on upland and transitional reclaimed sites. The ecosite phase reclamation targets of the Athabasca Oil Sands (Alberta, Canada) were used as a model system. Six metrics were used to determine the relative difficulty to reclaim each upland and transitional ecosite phase: time required for target vegetation establishment, level of management required, difficulty associated with achieving the requisite edaphic (soil moisture and nutrients) regime, sensitivity to changing soil chemistry, utility of direct soil placement and erosion potential. Each metric was given a weighted value (1 through 4) according to its overall influence on the difficulty of reclaiming each ecosite phase. The weighted values of metrics deemed difficult, neutral and easy for a particular ecosite phase were multiplied by −1, 0 and +1, respectively. The values for all six metrics were then summed for each ecosite phase, yielding an overall value for the difficulty to reclaim each phase. Values below −2 were deemed to be difficult, −2 to +2 were deemed neutral and values exceeding +2 were deemed not difficult (“easy”) relative to the innate challenges of reclaiming anything on the scale of mineable oil sand leases. This method of quantifying the level of difficulty in establishing target vegetation communities can be applied to any post-disturbance reclamation project. Its adoption would have broad-scale implications on activities from reclamation planning to revegetation practices and monitoring techniques.
Diffeomorphism invariant measure for finite dimensional geometries
Creators: name: Menotti, Pietro
name: Peirano, Pier Paolo
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider families of geometries of D--dimensional space, described by a finite number of parameters. Starting from the De Witt metric we extract a unique integration measure which turns out to be a geometric invariant, i.e. independent of the gauge fixed metric used for describing the geometries. The measure is also invariant in form under an arbitrary change of parameters describing the geometries. We prove the existence of geometries for which there are no related gauge fixing surfaces orthogonal to the gauge fibers. The additional functional integration on the conformal factor makes the measure independent of the free parameter intervening in the De Witt metric. The determinants appearing in the measure are mathematically well defined even though technically difficult to compute.
description: 18 pages, no figures, plain LaTeX file
Koordersiochloa longiarista Veldkamp
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Koordersiochloa
Koordersiochloa longiarista

description: Koordersiochloa longiarista (A.Rich.) Veldkamp  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ; 1 400–3 000 m. Distribution: I.
Voucher: N/A.
References: Bussmann (1994), Bussmann & Beck (1995a), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
The Gravitational waves merger time distribution of binary neutron star systems
Creators: name: Beniamini, Paz
name: Piran, Tsvi
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary neutron stars (BNS) mergers are prime sites for $r$-process nucleosynthesis. Their rate determines the chemical evolution of heavy elements in the Milky Way. The merger rate of BNS is a convolution of their birth rate and the gravitational radiation spiral-in delay time. Using the observed population of Galactic BNS we show here that the lifetimes of pulsars in observed BNSs are sufficiently short that the ages of BNSs have little to no effect on the observed merger time distribution. We find that at late times ($t\gtrsim 1$ Gyr) the gravitational wave delay time distribution (DTD) follows the expected $ t^{-1}$. However, a significant excess of rapidly merging systems (between $40-60\%$ of the entire population) is apparent at shorter times. Although the exact shape of the DTD cannot be determined with the existing data, in all models that adequately describe the data we find at least $40\%$ of BNSs with merger times less than 1Gyr. This population of rapid mergers implies a declining deposition rate of $r$-process materials that is consistent with several independent observations of heavy element abundances in the Milky Way. At the same time this population that requires initial binary separations of roughly one solar radius clearly indicates that these binaries had common envelope progenitors. Our results suggest that a significant fraction of future LIGO/Virgo BNS mergers would reside in star forming galaxies.
description: 8 pages, 5 figures. Published in MNRAS
Computation of conservation laws for nonlinear lattices
Creators: name: Goktas, Unal
name: Hereman, Willy
Publisher: name: arXiv
Year: 1998
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: An algorithm to compute polynomial conserved densities of polynomial nonlinear lattices is presented. The algorithm is implemented in Mathematica and can be used as an automated integrability test. With the code diffdens.m, conserved densities are obtained for several well-known lattice equations. For systems with parameters, the code allows one to determine the conditions on these parameters so that a sequence of conservation laws exist.
description: To appear in Physica D, 17 pages, Latex, uses the style files elsart.sty and elsart12.sty
A Robust Excess in the Cosmic-Ray Antiproton Spectrum: Implications for Annihilating Dark Matter
Creators: name: Cholis, Ilias
name: Linden, Tim
name: Hooper, Dan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An excess of $\sim$10-20 GeV cosmic-ray antiprotons has been identified in the spectrum reported by the AMS-02 Collaboration. The systematic uncertainties associated with this signal, however, have made it difficult to interpret these results. In this paper, we revisit the uncertainties associated with the time, charge and energy-dependent effects of solar modulation, the antiproton production cross section, and interstellar cosmic-ray propagation. After accounting for these uncertainties, we confirm the presence of a 4.7$σ$ antiproton excess, consistent with that arising from a $m_χ \approx 64-88$ GeV dark matter particle annihilating to $b\bar{b}$ with a cross section of $σv \simeq (0.8-5.2) \times 10^{-26}$ cm$^{3}$/s. If we allow for the stochastic acceleration of secondary antiprotons in supernova remnants, the data continues to favor a similar range of dark matter models ($m_χ\approx 46-94$ GeV, $σv \approx (0.7-3.8)\times 10^{-26}$ cm$^3/$s) with a significance of 3.3$σ$. The same range of dark matter models that are favored to explain the antiproton excess can also accommodate the excess of GeV-scale gamma rays observed from the Galactic Center.
description: 13 pages, 9 figures and one appendix, changes in v2 in agreement with published version, small revisions in text, results and conclusions unchanged
title: Schweißversuche mittels Kondensator-Stoßentladung
Creators: name: Hofmann, Wilhelm
name: Schuhmacher, Günter
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: The surfaces to be welded were connected with a condenser. The voltage was 500 to 3000 V at a capacity of 40 to 500 [my]F. When the two parts were pushed together they were welded by means of the high density of energy in space and time. The following metals could be welded: wolfram with constantan, wolfram with German silver, wolfram with copper, wolfram with lead, wolfram with aluminium, wolfram with bismuth, aluminium with copper, hardmetal with steel, lead with steel. The quality of the welded joint was controled by tensile tests, by metallographic examination and by resistance measurements.
DS19 presentation materials
Creators: name: Micluța-Câmpeanu, Sebastian
Publisher: name: figshare
Year: 2019
Subjects: subject: 10109 Ordinary Differential Equations, Difference Equations and Dynamical Systems
subject: FOS: Mathematics
subject: 10204 Dynamical Systems in Applications
subject: Computational Physics

description: Here are the materials for the SIAM DS19 presentation entitled "Large-Scale Numerical Investigations into the
Dynamics of Nonlinear Classical Systems". The dataset used for all the computations is included as the binary file graph.jls and it requires julia 1.1.0 and the two julia packages linked below to be correctly read. See the DS19Presentation GitHub repository linked below for more details on how to reproduce the presented figures.
title: Dampfgehärteter Porenbeton im Wohnungsbau
Creators: name: Kristen, Theodor
name: Meyer, Adolf
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: Steamhardened porous concretes may be produced as gas-concretes or foam-concretes. Their technical characteristics are considered according to the results of the tests made in the Institute for Research and Testing of building materials. Owing to their mean thermal conductivity steamhardened porous concretes are particularly useful for building dwellinghouses.
Leersia hexandra Sw.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Leersia
Leersia hexandra

description: Leersia hexandra Sw.  —
Habit: Herb.
Habitat: LMWF, LMDF; up to 2 000 m. Distribution: I.
Voucher: N/A.
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Violations of the Weak Energy Condition in Inflating Spacetimes
Creators: name: Borde, Arvind
name: Vilenkin, Alex
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We argue that many future-eternal inflating spacetimes are likely to violate the weak energy condition. It is possible that such spacetimes may not enforce any of the known averaged conditions either. If this is indeed the case, it may open the door to constructing non-singular, past-eternal inflating cosmologies. Simple non-singular models are, however, unsatisfactory, and it is not clear if satisfactory models can be built that solve the problem of the initial singularity.
description: 18 pages, 1 figure (which emerges automatically if you use dvips)
AF flows and continuous symmetries
Creators: name: Bratteli, Ola
name: Kishimoto, Akitaka
Publisher: name: arXiv
Year: 2000
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L55

description: We consider AF-flows, i.e., one-parameter automorphism groups of a unital simple C*-algebra which leave invariant the dense union of an increasing sequence of finite-dimensional *-subalgebras, and derive two properties for these; an absence of continuous symmetry breaking and a kind of real rank zero property for the almost fixed points.
description: 24 pages, latex
R. Int. de Dir. Público – RIDP | Belo Horizonte, ano 3, n. 5, jul./dez. 2018
Creators: name: Martins, Ricardo Marcondes
name: Dal Pozzo, Augusto Neves
name: Valim, Rafael
name: Rocha, Silvio Luiz Ferreira da
Publisher: name: Zenodo
Year: 2018

description: Número 5, Ano 2018, Jul/Dez - 2018 Apontamentos sobre a invalidação do ato administrativo na jurisprudência do STF Ricardo Marcondes Martins La nueva Ley de Cautelares contra el Estado Nacional como una política pública de tutela procesal diferenciada – Un análisis de la Ley 26.854 frente a los principios y estándares internacionales de protección de los Derechos Humanos Pablo Octavio Cabral Princípio da soberania nacional e investimentos estrangeiros em infraestrutura: a contribuição de pressupostos metodológicos do construtivismo lógico-semântico para análise interpretativa Carolina Reis Jatobá Coêlho A construção da responsabilidade penal do indivíduo no plano internacional Renan de Marco D’Andrea Maia, Yuri Valladão Carvalho Pena capital e direitos humanos – A abolição da pena de morte no direito internacional Thiago Perez Bernardes de Moraes Princípios constitucionais e competência regulamentar da Administração nos casos de omissão legislativa Rafael Valle Vernaschi O método da ponderação de princípios e o atual Código de Processo Civil Fernando Ramalho Paranhos Direito fundamental de propriedade x função social: uma questão de ponderação? Patricia Prieto Moreira Dispensa de licitação e a ponderação de princípios Allan Kenji Tasaka
Using a portable muon detector for radioactive source measurements and identification
Creators: name: Masias, Joaquin
name: Delgado, Franco
name: Coll, Lucía
name: Pérez, Alicia
name: Bazo, José
name: Gago, Alberto
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have re-purposed portable plastic scintillator muon detectors, designed by the CosmicWatch project, for the measurement of electrons emitted by the decay of radioactive sources. For the latter purpose we have first calibrated the detectors using the local atmospheric muon flux, performing angular distribution and attenuation measurements. In addition, we have simulated the detector using Geant4 in a detailed fashion for a cross-check and better understanding of the device. Then, we have developed a method to evaluate the activity of $β$-sources and to discriminate different $β$-sources by looking into their respective voltage spectrum output.
description: 7 pages, 12 figures. Supplementary materials and simulation scripts at: https://github.com/Jmasias04/Geant4-Simulation-of-Desktop-Muon-Detector
Command jobs used to generate differential expression data in experiment 1.
Creators: name: Honghu Quan
name: Arsala, Deanna
name: Lynch, Jeremy
Publisher: name: figshare
Year: 2019
Subjects: subject: 60803 Animal Developmental and Reproductive Biology
subject: FOS: Biological sciences
subject: 60403 Developmental Genetics (incl. Sex Determination)
subject: Developmental Biology
subject: 60305 Evolution of Developmental Systems

description: For experiment 1, we used only the OGS 2.0 annotation, and varied only whether the data from replicate 1 was included (present in Analysis 1, absent in Analysis 2). At this time cufflinks2 was used to assemble and quantify transcripts. Due to sub-optimality of the raw data, we did not do as many variations on the analysis as were done for Experiment 2.
title: Reduktion eines linearen Eigenwertproblems 2. Ordnung mit Hilfe einer bekannten Eigenfunktion
Creators: name: Schaefer, Hermann
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: Beim Eigenwertproblem der linearen Differentialgleichung 2. Ordnung sei eine Eigenfunktion mit dem zugehörigen Eigenwert bekannt. Dann kann durch eine Berührungstransformation ein neues Eigenwertproblem gewonnen werden, das den bekannten Eigenwert nicht mehr enthält. Das algebraische Eigenwertproblem der Differenzengleichung 2. Ordnung wird ähnlich behandelt. Wenn man die Eigenfunktion höchster Ordnung zur Reduktion benutzt, läßt sich das neue Eigenwertproblem durch einfache geometrische Konstruktionen finden.
description: If in the eigenvalue problem of the linear 2nd order differential equation one eigenfunction with its eigenvalue is known, a new eigenvalue problem not involving the known eigenvalue can be stated by a contact-transformation. The algebraic eigenvalue problem of the second order equation of finite differences has been treated in a similar way. In this case the new eigenvalue problem may be obtained by simple geometrical constructions, if the eigenfunction of the highest order is used for reduction.
title: Berechnung der Druckverteilung der ebenen Platte im Gitterverband
Creators: name: Scholz, Norbert
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: A conformal mapping of cascades with flat plate profiles is explained. A formula is derived for the velocity distribution on the flat plate in cascade with arbitrary solidity and angle of stagger. As an example the pressure distribution on a flat plate is calculated for the solidity t/l = 0,5 and angles of stagger [lambda] = 0°, 30° and 60°.
Melinis repens Zizka
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Melinis
Melinis repens

description: * Melinis repens (Willd.) Zizka  —
Habit: Herb.
Habitat: LMDF; up to 2 500 m. Distribution: IV.
 Voucher: North Mount Kenya, Alt. 1 500 m, 25 Jul. 1975, Otten 75/017/5 (WAG).
Reference: N/A.
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Interrupted coarsening in a driven kinetically constrained Ising chain
Creators: name: Fielding, Suzanne M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce a driven version of the 1D kinetically constrained spin chain. In its original undriven version, this model shows anomalous coarsening following a quench to a low temperature, with an equilibration time that diverges as exp(1/T^2) for T\to 0. We show that driving of constant rate gamma_dot interrupts coarsening and stabilises the chain in a state analogous to that of a coarsening chain of age 1/gamma_dot. We present an analytical theory for this steady state, and demonstrate it to be in excellent agreement with our simulation results.
description: 9 pages, 4 figures
Topological band theory for non-Hermitian systems from the Dirac equation
Creators: name: Ge, Zi-Yong
name: Zhang, Yu-Ran
name: Liu, Tao
name: Li, Si-Wen
name: Fan, Heng
name: Nori, Franco
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We identify and investigate two classes of non-Hermitian systems, i.e., one resulting from Lorentz-symmetry violation (LSV) and the other from a complex mass (CM) with Lorentz invariance, from the perspective of quantum field theory. The mechanisms to break, and approaches to restore, the bulk-boundary correspondence in these two types of non-Hermitian systems are clarified. The non-Hermitian system with LSV shows a non-Hermitian skin effect, and its topological phase can be characterized by mapping it to the Hermitian system via a non-compact $U(1)$ gauge transformation. In contrast, there exists no non-Hermitian skin effect for the non-Hermitian system with CM. Moreover, the conventional bulk-boundary correspondence holds in this (CM) system. We also consider a general non-Hermitian system in the presence of both LSV and CM, and we generalize its bulk-boundary correspondence.
description: 14 pages, 4 figures
Tracking without bells and whistles
Creators: name: Bergmann, Philipp
name: Meinhardt, Tim
name: Leal-Taixe, Laura
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The problem of tracking multiple objects in a video sequence poses several challenging tasks. For tracking-by-detection, these include object re-identification, motion prediction and dealing with occlusions. We present a tracker (without bells and whistles) that accomplishes tracking without specifically targeting any of these tasks, in particular, we perform no training or optimization on tracking data. To this end, we exploit the bounding box regression of an object detector to predict the position of an object in the next frame, thereby converting a detector into a Tracktor. We demonstrate the potential of Tracktor and provide a new state-of-the-art on three multi-object tracking benchmarks by extending it with a straightforward re-identification and camera motion compensation. We then perform an analysis on the performance and failure cases of several state-of-the-art tracking methods in comparison to our Tracktor. Surprisingly, none of the dedicated tracking methods are considerably better in dealing with complex tracking scenarios, namely, small and occluded objects or missing detections. However, our approach tackles most of the easy tracking scenarios. Therefore, we motivate our approach as a new tracking paradigm and point out promising future research directions. Overall, Tracktor yields superior tracking performance than any current tracking method and our analysis exposes remaining and unsolved tracking challenges to inspire future research directions.
Functional integration for Regge gravity
Creators: name: Menotti, Pietro
name: Peirano, Pier Paolo
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A summary is given of recent exact results concerning the functional integration measure in Regge gravity.
description: 9 pages, AMSLaTex file; talk given at the Second Meeting on Constrained Dynamics and Quantum Gravity, Santa Margherita Ligure, Italy, 17-21 September 1996
Microchloa indica P. Beauv.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Microchloa
Microchloa indica

description: Microchloa indica (L.f.) P.Beauv.  —
Habit: Herb.
Habitat: LMDF; up to 2 000 m. Distribution: I.
Voucher: N/A.
References: Fries & Fries (1926), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
title: Über die Beurteilung des Gütegrades von Mischungen bei beliebigen Verteilungsgesetzen für die Korngewichte der einzelnen Mischungskomponenten
Creators: name: Stange, Kurt
Publisher: name: Vieweg
Year: 1953
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: Two granular materials (P) and (Q) are mixed. The distribution functions of particle weight are supposed to be known for both components (P) und (Q). To judge the efficiency of the mixing process a statistical theory is developed to calculate the variations of the mixture's composition when samples are taken at random from the container. It is important to distinguish the notions of "volume frequency", "weight frequency", and "particle frequency" of the different components within the mixture. Single particles are supposed to obey statistical laws. The results which are stictly valid only for samples with equal numbers of particles are shown to be approximately valid for samples of equal weight (or volume), too. - The theory is generalised for mixtures consisting of three or more components.
Miscanthus violaceus Pilg.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Miscanthus
Miscanthus violaceus

description: Miscanthus violaceus (K.Schum.) Pilg.  —
Habit: Herb.
Habitat: LMDF; up to 2 500 m. Distribution: II.
Voucher: N/A.
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 38, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
A homotopy training algorithm for fully connected neural networks
Creators: name: Chen, Qipin
name: Hao, Wenrui
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we present a Homotopy Training Algorithm (HTA) to solve optimization problems arising from fully connected neural networks with complicated structures. The HTA dynamically builds the neural network starting from a simplified version to the fully connected network via adding layers and nodes adaptively. Therefore, the corresponding optimization problem is easy to solve at the beginning and connects to the original model via a continuous path guided by the HTA, which provides a high probability to get a global minimum. By gradually increasing the complexity of model along the continuous path, the HTA gets a rather good solution to the original loss function. This is confirmed by various numerical results including VGG models on CIFAR-10. For example, on the VGG13 model with batch normalization, HTA reduces the error rate by 11.86% on test dataset comparing with the traditional method. Moreover, the HTA also allows us to find the optimal structure for a fully connected neural network by building the neutral network adaptively.