cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observational evidence for gravitationally trapped massive axion(-like) particles
Creators: name: DiLella, L.
name: Zioutas, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Unexpected astrophysical observations can be explained by gravitationally captured massive particles, which are produced inside the Sun or other Stars and are accumulated over cosmic times. Their radiative decay in solar outer space would give rise to a `self-irradiation' of the whole star, providing the time-independent component of the corona heating source. In analogy with the Sun-irradiated Earth atmosphere, the temperature and density gradient in the corona - chromosphere transition region is suggestive for an omnipresent irradiation of the Sun. The same scenario fits other astrophysical X-ray observations. The radiative decay of a population of such elusive particles mimics a hot gas. X-ray observatories, with an unrivalled sensitivity below ~10 keV, can search for such particles. The elongation angle relative to the Sun is the relevant new parameter.
description: 35 pages, LaTeX, 9 figures. Accepted by Astroparticle Physics
A central limit theorem for almost local additive tree functionals
Creators: name: Ralaivaosaona, Dimbinaina
name: Šileikis, Matas
name: Wagner, Stephan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: An additive functional of a rooted tree is a functional that can be calculated recursively as the sum of the values of the functional over the branches, plus a certain toll function. Janson recently proved a central limit theorem for additive functionals of conditioned Galton-Watson trees under the assumption that the toll function is local, i.e. only depends on a fixed neighbourhood of the root. We extend his result to functionals that are "almost local" in a certain sense, thus covering a wider range of functionals. The notion of almost local functional intuitively means that the toll function can be approximated well by considering only a neighbourhood of the root. Our main result is illustrated by several explicit examples including natural graph theoretic parameters such as the number of independent sets, the number of matchings, and the number of dominating sets. We also cover a functional stemming from a tree reduction process that was studied by Hackl, Heuberger, Kropf, and Prodinger.
description: 28 pages
Begonia humilis var. porteriana A. DC.
Creators: name: Moonlight, Peter. W.
name: Jara-Muñoz, Orlando A.
name: Purvis, David A.
name: Delves, Jay
name: Allen, Josh P.
name: Reynel, Carlos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Cucurbitales
Begoniaceae
Begonia
Begonia humilis
Begonia humilis var. porteriana (fisch., c.a.mey. & avé-Lall.) a.dc.

description: Begonia humilis var. porteriana (Fisch., C.A.Mey. & Avé-Lall.) A.DC.
Flora Brasiliensis 4 (1): 344 (de Candolle 1861). – Begonia porteriana Fisch., C.A.Mey. & Avé-Lall., Index Seminum, quae Hortus Botanicus Imperialis Petropolitanus pro Mutua Commutatione Offert. Accedunt Animadversiones Botanicae Nonnullae 8: 51 (Fischer et al. 1842).
– Type: unknown.
Klotzsch (1855: 156); Walpers (1858: 881); de Candolle (1864: 298).
Notes
The protologue B. porteriana Fisch., C.A.Mey. & Avé-Lall. cites living material grown from seeds sent from Pará State, Brazil by Sir Robert Ker Porter (Fischer et al. 1842: 51), the Scottish botanist, diplomat, and historical painter to Tsar Alexander the 1 st of Russia. Porter was British counsel to Venezuela for fifteen years from 1826 but we know of no evidence he travelled to Pará in Brazil, but this seems likely. Fischer’s specimens are held in Saint Petersburg herbarium (LE) and there is a specimen in the de Candolle herbarium (G-DC) that was grown in Saint Petersburg by Fischer. This specimen is however labelled as “ Begonia humilis ” and might not have fallen under Fischer’s concept of B. porteriana. We have not been able to undertake a full search of Saint Petersburg herbarium so cannot rule out the possibility of there being original material of this name present. Alphonse Pyramus de Candolle (1861: 344) treated B. porteriana as a variety of B. humilis (de Candolle 1861: 344). We treat this taxon as an excluded name.
description: Published as part of Moonlight, Peter. W., Jara-Muñoz, Orlando A., Purvis, David A., Delves, Jay, Allen, Josh P. & Reynel, Carlos, 2023, The genus Begonia (Begoniaceae) in Peru, pp. 1-334 in European Journal of Taxonomy 881 on page 305, DOI: 10.5852/ejt.2023.881.2175, http://zenodo.org/record/8178280
title: A frontier-based system of incentives for units in organisations with varying degrees of decentralisation
Creators: name: Afsharian, Mohsen
name: Ahn, Heinz
name: Thanassoulis, Emmanuel
Publisher: name: Elsevier BV
Year: 2019
Subjects: subject: Data Envelopment Analysis (DEA)
subject: Incentive Regulation
subject: Centralised Management
subject: Clustering
subject: Banking
subject: 658

description: The paper focuses on hierarchically structured organisations with a large set of operating units. While the central body in such organisations faces asymmetry of information concerning the operating costs of the units, it may wish to incentivise them through benchmarking and target setting to operate as efficiently as possible. If a standard Data Envelopment Analysis (DEA) approach is used for this purpose, each operating unit could estimate its own efficient targets. However, this decentralised scenario is not necessarily appropriate for a centralised organisation in which a central body wishes to optimise the performance of the system of units as a whole. On the other hand, a top-down imposed set of targets is often not suitable as they would be too demanding for some units and too lax for others. This paper proposes a DEA-based approach for incentivising the units of a hierarchically structured organisation in order to optimise the performance of the units collectively while at the same time the targets are not too demanding for inefficient units. The proposed approach is also extended so that incentive levels for operating units are determined over time, taking into account any changes in their productivity. Accordingly, the central management can strike a balance between not spending too much on incentives on the one hand and encouraging the operating units to reveal their true cost function on the other. We illustrate our approach using data from a set of German savings banks.
Temperature scaling, glassiness and stationarity in the Bak-Sneppen model
Creators: name: Head, D. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We show that the emergence of criticality in the locally-defined Bak-Sneppen model corresponds to separation over a hierarchy of timescales. Near to the critical point the model obeys scaling relations, with exponents which we derive numerically for a one-dimensional system. We further describe how the model can be related to the glass model of Bouchaud [{\em J. Phys. I France {\bf 2}, 1705 (1992)}], and we use this insight to comment on the usual assumption of stationarity in the Bak-Sneppen model. Finally, we propose a general definition of self-organised criticality which is in partial agreement with other recent definitions.
description: 5 pages, 4 figures; differences to previous work clarified. To appear in EPJB
Invitation to higher local fields, Part II, section 7: Recovering higher global and local fields from Galois groups - an algebraic approach
Creators: name: Efrat, Ido
Publisher: name: arXiv
Year: 2000
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 12E30, 12J25, 19M05

description: A main problem in Galois theory is to characterize the fields with a given absolute Galois group. We apply a K-theoretic method for constructing valuations to study this problem in various situations. As a first application we obtain an algebraic proof of the 0-dimensional case of Grothendieck's anabelian conjecture (proven by Pop), which says that finitely generated infinite fields are determined up to purely inseparable extensions by their absolute Galois groups. As a second application (which is a joint work with Fesenko) we analyze the arithmetic structure of fields with the same absolute Galois group as a higher-dimensional local field.
description: For introduction and notation, see math.NT/0012131 . Published by Geometry and Topology Monographs at http://www.maths.warwick.ac.uk/gt/GTMon3/m3-II-7.abs.html
Spin polarization through Intersystem Crossing in the silicon vacancy of silicon carbide
Creators: name: Dong, Wenzheng
name: Doherty, M. W.
name: Economou, Sophia E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Silicon carbide (SiC)-based defects are promising for quantum communications, quantum information processing, and for the next generation of quantum sensors, as they feature long coherence times, frequencies near the telecom, and optical and microwave transitions. For such applications, the efficient initialization of the spin state is necessary. We develop a theoretical description of the spin polarization process by using the intersystem crossing of the silicon vacancy defect, which is enabled by a combination of optical driving, spin-orbit coupling, and interaction with vibrational modes. By using distinct optical drives, we analyze two spin polarization channels. Interestingly, we find that different spin projections of the ground state manifold can be polarized. This work helps to understand initialization and readout of the silicon vacancy and explains some existing experiments with the silicon vacancy center in SiC.
Artificial Intelligence in Product Identification and Evaluation: Insights from Expert Interviews
Creators: name: Schimanek, Robert
name: Dietrich, Franz
Publisher: name: Technische Universität Berlin
Year: 2024
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: inspection
subject: machine learning
subject: circular economy
subject: artificial intelligence
subject: sustainable manufacturing
subject: maschinelles Lernen
subject: Kreislaufwirtschaft
subject: künstliche Intelligenz
subject: nachhaltige Fertigung

description: Modern industries face complexity with diverse products and shorter lifecycles, shifting towards circular economy principles for value preservation and profitability. Artificial Intelligence (AI), specifically Machine Learning and Deep Learning, is considered for efficient product identification and evaluation in reverse logistics and prior to remanufacturing. However, the industrial viability of AI in this context remains to be determined. This research explores potential applications, challenges, technologies, and implementation aspects through expert interviews. The gained insights clarify the effectiveness of AI in product management within reverse logistics across diverse sectors. This data is referenced by "Cameraless and worker-centred AI inspection prior to assembly and disassembly", 2024, Annals of the CIRIP
title: Pitfalls in estimating the X-factor: The case of energy transmission regulation in Brazil
Creators: name: Afsharian, Mohsen
name: Ahn, Heinz
name: Lopes, Ana
name: Vilela, Bruno
Publisher: name: Elsevier BV
Year: 2019
Subjects: subject: Data envelopment analysis
subject: X-factor estimation
subject: Energy transmission regulation
subject: 658

description: In Brazil, which has one of the biggest energy systems in the world, the National Electricity Regulatory Agency (Agência Nacional de Energia Elétrica – ANEEL) regulates the generation, transmission, distribution and commercialization of electricity. As a key step in running the incentive regulation regime, the regulator applies a DEA-based Malmquist index for estimating the X-factor, which reflects productivity gains that can be expected across all companies involved in the industry. This paper investigates the way the X-factor was estimated in 2015 by ANEEL in the transmission sector concerning the review period 2009–2014. The regulator applies a modified version of the Malmquist index developed by Ray and Desli [1] and also adapts the bootstrapping method of Simar and Wilson [2] to generate confidence intervals for an estimate of the X-factor. Analyzing ANEEL’s approach, we have discovered a number of serious analytical and computational shortcomings, which we demonstrate in the paper. On this basis, we address the effect of the estimated X-factor on social welfare, having the final customers to pay a higher price for electricity than they were supposed to.
General Solution of the non-abelian Gauss law and non-abelian analogs of the Hodge decomposition
Creators: name: Majumdar, Pushan
name: Sharatchandra, H. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: General solution of the non-abelian Gauss law in terms of covariant curls and gradients is presented. Also two non-abelian analogs of the Hodge decomposition in three dimensions are addressed. i) Decomposition of an isotriplet vector field $V_{i}^{a}(x)$ as sum of covariant curl and gradient with respect to an arbitrary background Yang-Mills potential is obtained. ii) A decomposition of the form $V_{i}^{a}=B_{i}^{a}(C)+D_{i}(C) ϕ^{a} $ which involves non-abelian magnetic field of a new Yang-Mills potential C is also presented. These results are relevant for duality transformation for non-abelian gauge fields.
description: 6 pages, no figures, revtex
Generalised Chern-Simons Theory of Composite Fermions in Bilayer Hall Systems
Creators: name: Rajaraman, R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a field theory of Jain's composite fermion model as generalised to the bilayer quantum Hall systems. We define operators which create composite fermions and write the Hamiltonian exactly in terms of these operators. This is seen to be a complexified version of the familiar Chern Simons theory. In the mean-field approximation, the composite fermions feel a modified effective magnetic field exactly as happens in usual Chern Simons theories, and plateaus are predicted at the same values of filling factors as Lopez and Fradkin and Halperin . But unlike normal Chern Simons theories, we obtain all features of the first-quantised wavefunctions including its phase, modulus and correct gaussian factors at the mean field level. The familiar Jain relations for monolayers and the Halperin wavefunction for bilayers come out as special cases.
description: Revtex file; 20 pages after processing; no figures
Participatory Publishing : Zines as Open Pedagogy
Creators: name: Fields, Erin
name: Alisauskas, Alexandra
name: Taylor, Jessi
Publisher: name: The University of British Columbia
Year: 2021

description: Zines are a self-published medium that are often created by collaging existing materials (e.g. images, text, etc.) with self-created content and published in simple photocopied formats for open sharing. Participants at this session will be introduced to zine-making history and practices to situate zines as a form of open pedagogy. The session will address the methodologies and resources created to engage students in discussion around open culture, as well as student perspectives on the process.
Data pipelines in radiation oncology: lessons from software engineering
Creators: name: Couture, Gabriel
name: Després, Philippe
Publisher: name: Zenodo
Year: 2019
Subjects: orthanc
ETL operations
DVH

description: Processes automation in clinical environments is highly desirable as it reduces the workload and eliminates error-prone tasks. Extract/transform/load (ETL) operations for instance are often used to move data from an IT system to another. At our institution, ETL operations are used to federate prostate cancer patient data in a research database used to evaluate survival and toxicities. In these data pipelines, laboratory results and dosimetric indices are pulled from hospital IT systems and treatment planning systems (TPS) respectively. Maintaining these pipelines is not trivial however as several external factors can break them: new firewall rules, software updates, change in the vocabulary used, etc. It is therefore important to design the pipelines so that they can cope elegantly with frequent changes. Lessons learned from software engineering guided us towards the use of factory design pattern and data structures such as patient tree representations to handle the inherent complexity of ETL tasks in an ever changing IT ecosystem. Memory usage by the pipeline is also a concern, which was handled by the virtual proxy design pattern. This methodology will be presented through a case study where dosimetric indices are generated from DICOM-RT files derived from brachytherapy treatment planning. The pipeline first queries a research-dedicated PACS server, retrieves the files required, performs consistency checks, and calculates dosimetric indices. Results are written back into the DICOM files, using appropriate tags defined by the standard for this purpose. Any exception raised during the process is contextualized and sent to the developer for potential action. Implementation details and software engineering guidelines will be presented as well avenues for improvement, including the use of tools such as Apache Airflow to schedule and monitor ETL processes in a clinical setting.
Impacts of Phenology and Environmental Variation on the Reproductive Success of Invasive Willows
Creators: name: EMILY LAINE DE STIGTER
Publisher: name: Monash University
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Invasive species are one of the greatest global threats to biodiversity. In order to effectively manage for invasive plants in particular, it is helpful to understand their spread at a landscape-scale. This thesis focusses on the reproductive ecology and phenology of a highly invasive willow species, Salix cinerea, found in the river systems of south-eastern Australia. Invaluable information was amassed to assist Victorian catchment managers in optimising their S. cinerea removal efforts. More broadly, this thesis quantifies the effects of elevation and climate on the fecundity of the species in Australia, and the greater genus on a global scale.
ASA class is associated with early revision and reoperation after total hip arthroplasty: an analysis of the Geneva and Swedish Hip Arthroplasty Registries
Creators: name: Ferguson, Rory J
name: Silman, Alan J
name: Combescure, Christophe
name: Bulow, Erik
name: Odin, Daniel
name: Hannouche, Didier
name: Siôn Glyn-Jones
name: Rolfson, Ola
name: Lübbeke, Anne
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology

description: Background and purpose — Data from several joint replacement registries suggest that the rate of early revision surgery after primary total hip arthroplasty (THA) is increasing. The ASA class, now widely recorded in arthroplasty registries, may predict early revision. We investigated the influence of ASA class on the risk of revision and other reoperation within 3 months and within 5 years of primary THA. Patients and methods — We used data from the Geneva and Swedish Hip Arthroplasty Registries, on primary elective THAs performed in 1996–2016 and 2008–2016, respectively. 5,319 and 122,241 THAs were included, respectively. Outcomes were all-cause revision and other reoperations evaluated using Kaplan–Meier survival and Cox regression analyses. Results — Within 3 months after surgery, higher ASA class was associated with greater risk of revision and other reoperation. 3-month cumulative incidences of revision by ASA class I, II, and III–IV respectively, were 0.6%, 0.7%, and 2.3% in Geneva and 0.5%, 0.8%, and 1.6% in Sweden. 3-month cumulative incidences of other reoperation were 0.4%, 0.7%, and 0.9% in Geneva and 0.2%, 0.4%, and 0.7% in Sweden. Adjusted hazard ratios (ASA III–IV vs. I) for revision within 3 months were 2.7 (95% CI 1.2–5.9) in Geneva and 3.3 (CI 2.6–4.0) in Sweden. Interpretation — Assessment of ASA class of patients prior to THA will facilitate risk stratification. Targeted risk-reduction strategies may be appropriate during the very early postoperative period for patients identified as at higher risk. Systematically recording ASA class in arthroplasty registries will permit risk adjustment and facilitate comparison of revision rates internationally.
title: Measuring potential sub-unit efficiency to counter the aggregation bias in benchmarking
Creators: name: Ahn, Heinz
name: Bogetoft, Peter
name: Lopes, Ana
Publisher: name: Springer
Year: 2018
Subjects: subject: Benchmarking
subject: Data envelopment analysis
subject: DEA
subject: Aggregation bias
subject: Potential sub-unit efficiency
subject: Regulation
subject: 658

description: The paper deals with benchmarking cases where highly aggregated decision making units are in the data set. It is shown that these units – consisting of sub-units which are not further known by the evaluator – are likely to receive an unjustifiable harsh evaluation, here referred to as aggrega-tion bias. To counter this bias, we present an approach which allows to calculate the potential sub-unit efficiency of a decision making unit by taking into account the possible impact of its sub-units’ aggregation without having disaggregated sub-unit data. Based on data envelopment analy-sis, the approach is operationalized in several ways. Finally, we apply our method to the bench-marking model actually used by the Brazilian Electricity Regulator to measure the cost efficiency of the Brazilian distribution system operators. For this case, our results reveal that the potential effect of the aggregation bias on the operators’ efficiency scores is enormous.
The development of an online implant manufacturer application: a knowledge-sharing platform for the Swedish Hip Arthroplasty Register
Creators: name: Vinblad, Johanna
name: Odin, Daniel
name: Kärrholm, Johan
name: Rolfson, Ola
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: The development of an online implant manufacturer application: a knowledge-sharing platform for the Swedish Hip Arthroplasty Register
Cherenkov radiation from fluxon in a stack of coupled long Josephson junctions
Creators: name: Goldobin, E.
name: Wallraff, A.
name: Ustinov, A. V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a systematic study of the Cherenkov radiation of Josephson plasma waves by fast moving fluxon in a stack of coupled long Josephson junctions for different fluxon modes. It is found that at some values of parameters current-voltage characteristic may exhibit a region of the back-bending on the fluxon step. In the opposite limit the emission of the Cherenkov radiation takes place. In the annular junctions of moderate length the interaction of the emitted waves with fluxon results in the novel resonances which emerge on the top of the fluxon step. We present more exact formulas which describe the position of such resonances taking into account difference between junction and non-linear corrections. The possibility of direct detection of the Cherenkov radiation in junctions of linear geometry is discussed.
description: 10 pages, 12 figures, accepted to JLTP
Braided Structure in 4-dimensional conformal Quantum Field Theory
Creators: name: Schroer, Bert
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Higher dimensional conformal QFT possesses an interesting braided structure which, different from the d=1+1 models, is restricted to the timelike region and therefore easily escapes euclidean action methods. It lies behind the spectrum of anomalous dimensions which may be viewed as a kind of substitute for a missing particle interpretation in the presence of interactions.
description: Dedicated to Gerhard Mack and Robert Schrader on the occasion of their 60th birthday, submitted to Phys. Lett. B, 10 pages, improvements of the formulation, shortening of the text, addition of a formula, removal of typos
Energy distribution of charged dilaton black holes
Creators: name: Xulu, S. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Chamorro and Virbhadra studied, using the energy-momentum complex of Einstein, the energy distribution associated with static spherically symmetric charged dilaton black holes for an arbitrary value of the coupling parameter $γ$ which controls the strength of the dilaton to the Maxwell field. We study the same in Tolman's prescription and get the same result as obtained by Chamorro and Virbhadra. The energy distribution of charged dilaton black holes depends on the value of $γ$ and the total energy is independent of this parameter.
description: 8 pages, RevTex, no figures
Structural investigation of (111) oriented (BiFeO3)(1-x)Λ/(LaFeO3)xΛ superlattices by X-ray diffraction and Raman spectroscopy
Creators: name: Belhadi, J.
name: Yousfi, S.
name: Bouyanfif, H.
name: Marssi, M. El
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: (BiFeO3)(1-x)Λ/(LaFeO3)xΛ superlattices (SLs) with varying x have been grown by pulsed laser deposition on (111) oriented SrTiO3 substrates. In order to obtain good epitaxy and flat samples a conducting SrRuO3 buffer has been deposited prior to the superlattices to screen the polar mismatch for such (111) SrTiO3 orientation. X-ray diffraction reciprocal space mapping on different family of planes were collected and evidenced a room temperature structural change at x=0.5 from a rhombohedral/monoclinic structure for rich BiFeO3 to an orthorhombic symmetry for rich LaFeO3. This symmetry change has been confirmed by Raman spectroscopy and demonstrates the different phase stability compared to similar SLs grown on (100) SrTiO3. The strongly anisotropic strain and oxygen octahedral rotation/tilt system compatibility at the interfaces probably explain the orientation dependence of the phase stability in such superlattices.
description: 17 pages, 3 figures
Controlled Generation of Chimera States in SQUID Metasurfaces using DC Flux Gradients
Creators: name: Lazarides, N.
name: Hizanidis, J.
name: Tsironis, G. P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: SQUID (Superconducting QUantum Interference Device) metamaterials, subject to a time-independent (dc) flux gradient and driven by a sinusoidal (ac) flux field, support chimera states that can be generated with zero initial conditions. The dc flux gradient and the amplitude of the ac flux can control the number of desynchronized clusters of such a generated chimera state (i.e., its `heads') as well as their location and size. The combination of three measures, i.e., the synchronization parameter averaged over the period of the driving flux, the incoherence index, and the chimera index, is used to predict the generation of a chimera state and its multiplicity on the parameter plane of the dc flux gradient and the ac flux amplitude. Moreover, the full-width half-maximum of the distribution of the values of the synchronization parameter averaged over the period of the ac driving flux, allows to distinguish chimera states from non-chimera, partially synchronized states.
description: 7 pages, 5 figures, submitted to Physical Review E
Do We Have An Essential Role To Play In This Cosmic Game?
Creators: name: Timalsina, Staneshwar
Publisher: name: Zenodo
Year: 2025
Subjects: Spanda
shakti
Kula
yantra
Īśāna
saivadvaita
Chandi
Shiva
sthaneshwar timalsina
trika
Tantra
Camunda
Kali
Durga
mahadeva
Vasugupta
Saundaryalahari
vedanta
vimarsha-foundation
Tantric philosophy
anava upaya
Devi Mahatmya
sarvamnaya
Sarvamnaya
Sadāśiva
shakta upāya
sarvamnaya-oral-tradition-archive
advaita vedanta
agama
Shaiva
amnaya
Tripurasundari
tantraloka
tripura
Bhairava
Abhinavagupta
krama
Divine Mother
Kubjika
shambhava
Kaula
timalsina
Mahakali
consciousness
Mālinīvijayottaratantra
Tripura Rahasya
Shiva Sutra
Guhyakālī
Kashmir Shaivism

description: In this video Āchārya Dr. Sthaneshwar Timalsina talks about if we have a role to play in the cosmic drama. This is a snippet taken from the course - "The Bhagavad-Gītā: Ancient Commentaries, Modern Insights", where Āchārya Ji examines the text in its depth and originality while balancing three different streams of Hindu Philosophy, the non-dualism of Śaṅkarācārya that emphasizes knowledge, the qualified non-dualism of Rāmānujācārya grounded in Vaiṣṇava theology, and the monism of Abhinavagupta with his foundational philosophy of realization combined with action. He additionally examines the relevance of these teachings to contemporary issues including the meaning of moral agency, the problem of violence, and the scope of the diverse forms of yoga such as devotion, wisdom, and action.
Check out the course here: https://www.vimarshafoundation.org/challenge-page/bhagavad-gita-course?programId=b77799ba-516b-4bc2-913e-ab76a14c2ea2

Acharya Dr. Sthaneshwar Timalsina is an esteemed traditional consecrated teacher of Shaiva-Shakta Hindu Tantra. He is also the Endowed Chair of Indic Studies at Stony Brook University, New York in the Department of Asian & Asian American Studies. Acharya Sthaneshwar is the founder of Vimarsha Foundation, a non-profit organization through which he teaches shastra and sādhanā to students of all backgrounds. Learn more about Vimarsha on our website, learn from our many free Tantra resources, and join us for free shāstra courses that occur every semester: https://www.vimarshafoundation.org/

#bhagavadgita #vedanta #tantra #spirituality #hinduism

Original YouTube video: https://www.youtube.com/watch?v=EH5JGzdS9A8

This presentation is part of the Sarvāmnāya Oral Tradition Archive.
Vimarsha Foundation. (2025). The Sarvāmnāya Oral Tradition Archive [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15188107
Critical exponents of the quantum phase transition in a planar antiferromagnet
Creators: name: Troyer, Matthias
name: Imada, Masatoshi
name: Ueda, Kazuo
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We have performed a large scale quantum Monte Carlo study of the quantum phase transition in a planar spin-1/2 Heisenberg antiferromagnet with CaV4O9 structure. We obtain a dynamical exponent z=1.018+/-0.02. The critical exponents beta, nu and eta agree within our errors with the classical 3D O(3) exponents, expected from a mapping to the nonlinear sigma model. This confirms the conjecture of Chubukov, Sachdev and Ye [Phys. Rev. B 49, 11919 (1994)] that the Berry phase terms in the planar Heisenberg antiferromagnet are dangerously irrelevant.
description: 5 pages including 4 figures; revised version: some minor changes and added references
Selection of new varieties of cocoa (Theobroma cacao L.) adapted to the effects of climate change in Côte d'Ivoire
Creators: name: Tahi G.M., G.M.
name: Guiraud, S. B
name: Trebissou, C.
name: Ehounou, J. N.
name: Kouadio, K. H.
name: Minakou, S.
name: Brou, K.
name: Assi, M.
name: Coulibaly, K.
name: Gogbe, F.
name: Johnson, V.
name: Bastide, P.
name: Grazioli, F.
name: Cilas, C.
Publisher: name: Zenodo
Year: 2023

description: In Côte d'Ivoire, climate change is particularly evident in the lengthening of drought periods, which seriously affects the establishment and productivity of cocoa orchards. In addressing this challenge, breeders must maintain or improve tree productivity and bean technological quality. The objective of this work is to select new varieties of high-performance cocoa trees adapted to different agroclimatic zones.
The experimental design, which is based on the previous achievements of the CFC/ICCO/Bioversity (2004-2009) and FIRCA (2008-2011) projects, includes four agro-climatic zones (Bouaflé, Abengourou, Divo and Soubré) including two with rainfall deficit (Bouaflé and Abengourou). The planting material, planted in two plots per zone, is made up of 15 CNRA families common to each agro-climatic zone and 10 to 15 free progenies, selected in each zone by the cocoa producers for their superior agronomic and technological performance. 
The traits studied concerned i) the production potential, ii) the adult vegetative vigor measured by the diameter at the collar of the trees, iii) the grain size evaluated by the weight of 100 dry cocoa beans, and iv) the field resistance to black pod-rot (caused by Phytophthora spp.), evaluated by the percentage of rotten pods. 
The results showed that with the exception of field resistance to black pod-rot, a highly significant zone x family interaction (probability < 0.0001) was observed for the studied traits. In particular, the negative impact of drought on the weight of dry bean size has been highlighted. The study also allowed the selection of four families of promising hybrids for resistance to black pod disease in the field, and nine remarkable farmer-selected progenies for bean size. For most of the traits studied, six families of hybrids were ranked among the ten best families in all the study areas, thus highlighting the stability of these families for these traits, regardless of the water regime of the area. The interest of releasing these varieties of selected cocoa trees in production areas with low rainfall in Côte d'Ivoire was considered and discussed.
 
Keywords: climate change, agro-climatic zone, breeding.
The classification of BL Lacertae objects: the Ca H&K break
Creators: name: Landt, H.
name: Padovani, P.
name: Giommi, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate why BL Lacertae objects (BL Lacs) have values of the Ca H&K break (a stellar absorption feature) lower than low-power radio galaxies and if its use is justified to separate the two classes. For this purpose we relate this parameter to the radio and optical core emissions, as well as to the X-ray powers, for a sample of ~90 radio sources. We find that the Ca H&K break value decreases with increasing jet powers, and that it also anti-correlates with the radio core dominance parameter but not with extended radio emission. Based on this we conclude that the Ca H&K break value of BL Lacs and radio galaxies is a suitable indicator of orientation. From the luminosity ratios between objects with low and high Ca H&K break values we constrain the average Lorentz factors for BL Lacs and low-power radio galaxies in the radio and X-ray band to Gamma ~ 2 -- 4 and derive average viewing angles for the galaxies. Our values are in agreement with results from independent methods. We find that the correlations between Ca H&K break and radio core and X-ray luminosity hold independently for low- (LBL) and high-energy peaked BL Lacs (HBL). We derive average viewing angles for their parent populations, which turn out to be similar to the ones for our entire sample, and compare for the first time the luminosities of LBL and HBL at different orientations.
description: 14 pages, 12 figures. Accepted for publication in MNRAS
Water Resources Management by Simulation under Virtual Water Scenario in Agricultural Sector, Case Study: Hirmand Catchment, Iran
Creators: name: Shahraki, Ali Sardar
name: Shahraki, Javad
name: Monfared, Seyed Arman Hashemi
name: Shahraki, Ali Sardar
name: Shahraki, Javad
name: Monfared, Seyed Arman Hashemi
Publisher: name: Unknown
Year: 2017
Subjects: subject: Resource /Energy Economics and Policy
subject: Virtual water
subject: agricultural sector
subject: water resource management
subject: simulation
subject: Hirmand catchment

description: Due to the frequent drought periods, water consumption increase, and competition of different water-using sectors, the Hirmand catchment is in a critical water status in the Sistan Region. This threat has been intensified in recent years. To cope with this problem, we must pay more attention to different types of water use such as virtual water as a water saving method. The present study calculates virtual water demand of agricultural products in the Sistan Region in the cropping year of 2013-2014 using water evaluation and planning (WEAP) system. Furthermore, impacts of the implementation of the virtual water scenarios are predicted on water resources and consumption over the 2015-2030 period. Results show that tomato and alfalfa have less virtual water demand despite their high water requirements due to their high production yield. Furthermore, wheat and barley have the highest virtual water demand. Also, the results of the WEAP model reveal that in the virtual water scenario, the mean annual water demand is lower than the current account (61% for net efficiency, 17% for current efficiency). Consequently, unmet demand will be reduced about 383 million m3. Therefore, given the prevalence of drought in the region, it is appropriate to implement this scenario to protect water resources. Hence, it is highly recommended to orient planning and investment in agricultural development projects of the Sistan Region with the concept of virtual water.
The development of an online implant manufacturer application: a knowledge-sharing platform for the Swedish Hip Arthroplasty Register
Creators: name: Vinblad, Johanna
name: Odin, Daniel
name: Kärrholm, Johan
name: And Ola Rolfson
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: The development of an online implant manufacturer application: a knowledge-sharing platform for the Swedish Hip Arthroplasty Register
Bayesian Analysis of Spatial Probit Models in Wheat Waste Management Adoption
Creators: name: Ommani, Ahmad Reza
name: Noorivandi, Asadeh N.
name: Ommani, Ahmad Reza
name: Noorivandi, Asadeh N.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Bayesian model
subject: spatial models
subject: wheat waste management

description: The purpose of this study was to identify factors influencing the adoption of wheat waste management by wheat farmers. The method used in this study using the spatial Probit models and Bayesian model was used to estimate the model. MATLAB software was used in this study. The data of 220 wheat farmers in Khouzestan Province based on random sampling were collected in winter 2016. To calculate Bayesian coefficients the Gibbs sampling and Metropolis–Hastings algorithm were used. A Lagrange Multiplier test for spatial error dependence [LM(err)] and a Lagrange Multiplier test for spatial lag dependence [LM(lag)] to extract the appropriate model were used.The results of both models were statistically significant with 99% probability. Thus, both models can be used in interpreting the results. Based on the results of the estimation of spatial models the variables of participation in extension courses, technical knowledge about management of waste, income, crop’s yield, mechanization level and the spatial autoregressive coefficient had significant role on adoption of waste management.
Threshold knot selection for large-scale spatial models with applications to the Deepwater Horizon disaster
Creators: name: Jelsema, Casey M.
name: Kwok, Richard K.
name: Peddada, Shyamal D.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Large spatial datasets are typically modelled through a small set of knot locations; often these locations are specified by the investigator by arbitrary criteria. Existing methods of estimating the locations of knots assume their number is known a priori, or are otherwise computationally intensive. We develop a computationally efficient method of estimating both the location and number of knots for spatial mixed effects models. Our proposed algorithm, Threshold Knot Selection (TKS), estimates knot locations by identifying clusters of large residuals and placing a knot in the centroid of those clusters. We conduct a simulation study showing TKS in relation to several comparable methods of estimating knot locations. Our case study utilizes data of particulate matter concentrations collected during the course of the response and clean-up effort from the 2010 Deepwater Horizon oil spill in the Gulf of Mexico.
A robust adaptive algebraic multigrid linear solver for structural mechanics
Creators: name: Franceschini, Andrea
name: Magri, Victor A. Paludetto
name: Mazzucco, Gianluca
name: Spiezia, Nicolò
name: Janna, Carlo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F08, 65F10, 65M55, 65N55

description: The numerical simulation of structural mechanics applications via finite elements usually requires the solution of large-size and ill-conditioned linear systems, especially when accurate results are sought for derived variables interpolated with lower order functions, like stress or deformation fields. Such task represents the most time-consuming kernel in commercial simulators; thus, it is of significant interest the development of robust and efficient linear solvers for such applications. In this context, direct solvers, which are based on LU factorization techniques, are often used due to their robustness and easy setup; however, they can reach only superlinear complexity, in the best case, thus, have limited applicability depending on the problem size. On the other hand, iterative solvers based on algebraic multigrid (AMG) preconditioners can reach up to linear complexity for sufficiently regular problems but do not always converge and require more knowledge from the user for an efficient setup. In this work, we present an adaptive AMG method specifically designed to improve its usability and efficiency in the solution of structural problems. We show numerical results for several practical applications with millions of unknowns and compare our method with two state-of-the-art linear solvers proving its efficiency and robustness.
description: 50 pages, 16 figures, submitted to CMAME
Digital Education for Crisis Situations (DECriS): Times when there is no alternative
Creators: name: Feldvari, Kristina
name: Gašo, Gordana
name: Mićunović, Milijana
Publisher: name: Zenodo
Year: 2021
Subjects: COVID-19 pandemic
Digital education (DE)
higher education (HE)
library and information science (LIS)
open educational resources (OERs)

description: The aim of this presentation is to present Erasmus+ project Digital Education for Crisis Situations (DECris): Times when there is no alternative. The project is focused on innovative digital practices implemented in higher education institutions (HEI) in the field of (L)IS during COVID-19 pandemic. Project’s main coordinator is Faculty of Humanities and Social Sciences, University of Osijek, Croatia, along with 8 partners and associate partners – Stiftung Universität Hildesheim (Germany), Universitat de Barcelona (Spain), Universitet po bibliotekoznanie i informacionni tehnologii (Bulgaria), University Computing Centre, University of Zagreb (Croatia), University of Sarajevo (Bosnia and Herzegovina), University of Mostar (Bosnia and Herzegovina), Victoria University of Wellington (New Zealand), and St. Petersburg State University of Culture (Russia).
SurfConv: Bridging 3D and 2D Convolution for RGBD Images
Creators: name: Chu, Hang
name: Ma, Wei-Chiu
name: Kundu, Kaustav
name: Urtasun, Raquel
name: Fidler, Sanja
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We tackle the problem of using 3D information in convolutional neural networks for down-stream recognition tasks. Using depth as an additional channel alongside the RGB input has the scale variance problem present in image convolution based approaches. On the other hand, 3D convolution wastes a large amount of memory on mostly unoccupied 3D space, which consists of only the surface visible to the sensor. Instead, we propose SurfConv, which "slides" compact 2D filters along the visible 3D surface. SurfConv is formulated as a simple depth-aware multi-scale 2D convolution, through a new Data-Driven Depth Discretization (D4) scheme. We demonstrate the effectiveness of our method on indoor and outdoor 3D semantic segmentation datasets. Our method achieves state-of-the-art performance with less than 30% parameters used by the 3D convolution-based approaches.
description: Published at CVPR 2018
Microwave spectroscopy of a weakly-pinned charge density wave in a superinductor
Creators: name: Houzet, Manuel
name: Glazman, Leonid I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A chain of small Josephson junctions (aka superinductor) emerged recently as a high-inductance, low-loss element of superconducting quantum devices. We notice that the intrinsic parameters of a typical superinductor in fact place it into the Bose glass universality class for which the propagation of waves in a sufficiently long chain is hindered by pinning. Its weakness provides for a broad crossover from the spectrum of well-resolved plasmon standing waves at high frequencies to the low-frequency excitation spectrum of a pinned charge density wave. We relate the scattering amplitude of microwave photons reflected off a superinductor to the dynamics of a Bose glass. The dynamics at long and short scales compared to the Larkin pinning length determines the low- and high-frequency asymptotes of the reflection amplitude.
description: 6+8 pages, 2+3 figures