cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Input Price and Quality Components in Low Cost/High Profit Grain Production
Creators: name: Hibbard, John D.
name: Hornbaker, Robert H.
name: White, David C.
name: Hibbard, John D.
name: Hornbaker, Robert H.
name: White, David C.
Publisher: name: Unknown
Year: 1992
Subjects: Demand and Price Analysis
Crop Production/Industries

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
Analysis of sulfated oligosaccharrides by Mass Spectrometry
Creators: name: Gonnet, Florence
name: Daniel, Régis
name: Tortajada, Jeanine
Publisher: name: Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), CNRS UMR8587, CEA, Université Evry val d'Essonne, Bat. Mapertuis, Boulevard François Mitterrand, 91025 Evry Cedex, France
Year: 2010
Subjects: Biological chemistry
Structural biology (crystallography, NMR, EM)
Homo sapiens
Macromolecular complex
Molecular structure
Mass spectrometry

description: The structural heterogeneity of fucoidan with respect to linkage and sulfate position is still a limitation to trace clear correlations between the structure and biological activities of this polysaccharide, although much effort has been made during the past years to elucidate its structure complexes( DNA and polypeptides or polyamines). Recent studies have demonstrated the usefulness of tandem mass spectrometry for the sequencing of glycosaminoglycan oligosaccharides and the differentiation of sulfated isomers. Indeed, the fragmentation of sulfated oligosaccharides produces diagnostic ions that reflect the pattern of substitutions, including the sulfate groups and the glycosidic bonds. Three main fragmentation reactions were observed: loss of a small molecule (SO3, H2O, CO2), glycosidic cleavage, and cleavage across the glycosidic ring. It has been previously shown that the fragmentation of sulfated disaccharides produced mainly two cross-ring fragments,9 the ions 0,2A2 and 0,2X1 following the Domon and Costello nomenclature. Their formation results of the breaking of the C-1-O (ring) and C-2-C-3 bonds, which leads to the loss of C-1-C-2 atoms of the reducing end for the 0,2A2 ion, and to the loss of C-6-C-3 atoms of the nonreducing residue for the 0,2X1 ion, allowing the determination of the sulfated position on the parent molecule.
Reflectionless Klein tunneling of Dirac fermions: Comparison of split-operator and staggered-lattice discretization of the Dirac equation
Creators: name: Vela, A. Donís
name: Lemut, G.
name: Pacholski, M. J.
name: Tworzydło, J.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Massless Dirac fermions in an electric field propagate along the field lines without backscattering, due to the combination of spin-momentum locking and spin conservation. This phenomenon, known as "Klein tunneling", may be lost if the Dirac equation is discretized in space and time, because of scattering between multiple Dirac cones in the Brillouin zone. To avoid this, a staggered space-time lattice discretization has been developed in the literature, with one single Dirac cone in the Brillouin zone of the original square lattice. Here we show that the staggering doubles the size of the Brillouin zone, which actually contains two Dirac cones. We find that this fermion doubling causes a spurious breakdown of Klein tunneling, which can be avoided by an alternative single-cone discretization scheme based on a split-operator approach.
description: v1: first submission; v2: added appendix with gap opening calculation; v3: added appendix that compares staggered fermions with naive fermions; revised title, the original title was "Brillouin zone doubling causes fermion doubling for a staggered lattice discretization of the Dirac equation"; to appear in the JPCM special Issue on "Electron quantum optics in Dirac materials"
A Instituição Através De Uma Caderneta De Cromos
Creators: name: Veiga-Pires, Cristina
name: Guerra, Liliana
name: Baptista, Elina
name: Reis, Emanuel
name: Dias, Filipe
name: Martins, Ana Paula
name: Vintém, Daniela
Publisher: name: Zenodo
Year: 2016

description: Existem variadas formas de comunicação para dar a conhecer uma instituição, que seja ela privada ou pública. Considerando por um lado a sua missão e por outro lado o seu pequeno orçamento, o Centro Ciência Viva do Algarve (CCVAlg) optou por desenvolver um projeto que permitisse criar um produto educativo e lúdico e ao mesmo tempo transmitir a imagem de uma instituição promotora da transferência de conhecimento científico. Nesse sentido e de forma a apresentar um produto multidisciplinar que aproveitasse as especificidades da região, foi decidido desenvolver um projeto sobre a Ria Formosa, que além de oferecer um ambiente natural de grande riqueza também permite abordar temas como a economia, a história, a arquitetura ou ainda a geologia, entre outros. De seguida, foi necessário encontrar não só os parceiros que possuam os conhecimentos científicos que se pretendia transmitir mas igualmente o parceiro que desenvolvesse o suporte que alberga-se o projeto. Os parceiros científicos foram naturalmente surgindo, tratando-se de entidades que são reconhecidas pelo seu trabalho no sistema lagunar de ilhas barreiras da Ria Formosa, como é o caso do Parque Natural da Ria Formosa (PNRF-ICNF), da Universidade do Algarve (UALG) e da Associação RIAS. Quanto ao parceiro técnico, o CCVAlg teve a sorte de ser contactado pela empresa COLARA que desenvolve cadernetas digitais de cromes, produtos que respondem perfeitamente ao objetivo de associar uma vertente lúdica à vertente educativa. Assim nasceu a caderneta digital de cromes sobre a Ria Formosa que integra i) o conhecimento científico; ii) a divulgação científica; iii) a educação não formal e interativa e iv) a comunicação institucional. O lançamento da caderneta terá lugar na 1a semana da Ria Formosa organizada pelo Instituto de Conservação da Natureza e da Floresta que decorrerá de 4 a 8 de Abril nos 5 concelhos que abrigam a Ria Formosa.
description: Acknowledgement to Colara company
Ephemeral data derived potentials for random structure search
Creators: name: Pickard, Chris J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Structure prediction has become a key task of the modern atomistic sciences, and depends on the rapid and reliable computation of the energy landscape. First principles density functional based calculations are highly reliable, faithfully describing the entire energy landscape. They are, however, computationally intensive and slow compared to interatomic potentials. Great progress has been made in the development of machine learning, or data derived, potentials, which promise to describe the entire energy landscape at first principles quality. However, compared to first principles approaches, their preparation can be time consuming and delay searching. Ab initio random structure searching (AIRSS) is a straightforward and powerful approach to structure prediction, based on the stochastic generation of sensible initial structures, and their repeated local optimisation. Here, a scheme, compatible with AIRSS, for the rapid construction of disposable, or ephemeral, data derived potentials (EDDPs) is described. These potentials are constructed using a homogeneous, separable manybody environment vector, and iterative neural network fits, sparsely combined through non-negative least squares. The approach is first tested on methane, boron nitride, elemental boron and urea. In the case of boron, an EDDP generated using data from small unit cells is used to rediscover the complex $γ$-boron structure without recourse to symmetry or fragments. Finally, an EDDP generated for silane (SiH$_4$) at 500 GPa enables the discovery of an extremely complex, dense, structure which significantly modifies silane's high pressure phase diagram. This has implications for the theoretical exploration for high temperature superconductivity in the dense hydrides, which have so far largely depended on searches in smaller unit cells.
description: 17 pages, 12 figures
Effect of sulfated oligosaccharides (heparin and fucoidan) on the oligomerization of stromal cell-derived factor-1
Creators: name: Fermas, Soraya
name: Gonnet, Florence
name: Sutton, Angela
name: Charnaux, Nathalie
name: Mulloy, Barbara
name: Du, Yuguo
name: Baleux, Françoise
name: Daniel, Régis
Publisher: name: Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), CNRS UMR8587, CEA, Université Evry val d'Essonne, Bat. Mapertuis, Boulevard François Mitterrand, 91025 Evry Cedex, France
Year: 2010
Subjects: Biological chemistry
Structural biology (crystallography, NMR, EM)
Homo sapiens
Macromolecular complex
Molecular structure
Mass spectrometry

description: We investigate the dimerization of SDF-1 in microM concentration and in the presence of sulfated oligosaccharides, using affinity capillary electrophoresis (ACE) hyphenated to electrospray ionization-mass spectrometry (ESI/MS). Chemokine stromal cell-derived factor-1 (SDF-1) is a potent chemoattractant involved in leukocyte trafficking and metastasis. Heparan sulfate on the cell surface binds SDF-1 and may modulate its function as a coreceptor of this chemokine. A major effect of the glycosaminoglycan binding may be on the quaternary structure of SDF-1, which has been controversially reported as a monomer or a dimer. The effect of sulfated oligosaccharides on the oligomerization of SDF-1 and of its mutated form SDF-1 (3/6) have investigated, using affinity capillary electrophoresis (ACE) hyphenated to mass spectrometry (MS). Coupled to MS, ACE allowed the study for the first time of the effect of size-defined oligosaccharides on the quaternary organization of SDF-1 in muM range concentrations, i.e., lower values than the mM values previously reported in NMR, light scattering, and ultracentrifugation experiments.
description: Cites: Fermas S, Gonnet F, Sutton A, Charnaux N, Mulloy B, Du Y, Baleux F, Daniel R. Sulfated oligosaccharides (heparin and fucoidan) binding and dimerization of stromal cell-derived factor-1 (SDF-1/CXCL 12) are coupled as evidenced by affinity CE-MS analysis. Glycobiology. 2008 Dec;18(12):1054-64. PMID: 18796646
Data-Driven Innovation: What Is It
Creators: name: Luo, Jianxi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computers and Society (cs.CY)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The future of innovation processes is anticipated to be more data-driven and empowered by the ubiquitous digitalization, increasing data accessibility and rapid advances in machine learning, artificial intelligence, and computing technologies. While the data-driven innovation (DDI) paradigm is emerging, it has yet been formally defined and theorized and often confused with several other data-related phenomena. This paper defines and crystalizes "data-driven innovation" as a formal innovation process paradigm, dissects its value creation, and distinguishes it from data-driven optimization (DDO), data-based innovation (DBI), and the traditional innovation processes that purely rely on human intelligence. With real-world examples and theoretical framing, I elucidate what DDI entails and how it addresses uncertainty and enhance creativity in the innovation process and present a process-based taxonomy of different data-driven innovation approaches. On this basis, I recommend the strategies and actions for innovators, companies, R&D organizations, and governments to enact data-driven innovation.
Mechanical control of physical properties in the van der Waals ferromagnet Cr2Ge2Te6 via application of electric current
Creators: name: Zhao, Hengdi
name: Ni, Yifei
name: Hu, Bing
name: Selter, Sabastian
name: Aswartham, Saicharan
name: Zhang, Yu
name: Büchner, Bernd
name: Schlottmann, Pedro
name: Cao, Gang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Cr2Ge2Te6 is a van der Waals ferromagnet with a Curie temperature at 66 K. Here we report a swift change in the magnetic ground state upon application of small DC electric current, a giant yet anisotropic magnetoelectric effect, and a sharp, lattice-driven quantum switching manifested in the I-V characteristic of the bulk single-crystal Cr2Ge2Te6. At the heart of these observed phenomena is a newly uncovered, strongly anisotropic magnetoelastic coupling that enables strongly anisotropic responses of the lattice to application of electric current and/or magnetic field, thus the exotic phenomena in Cr2Ge2Te6. Such a rare mechanical tunability in the magnetic semiconductors promises tantalizing prospects for unique functional materials and devices.
description: 5 figures
A topology optimization of open acoustic waveguides based on a scattering matrix method
Creators: name: Matsushima, Kei
name: Isakari, Hiroshi
name: Takahashi, Toru
name: Matsumoto, Toshiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: G.1.9; G.1.6; J.2
subject: 49M41

description: This study presents a topology optimization scheme for realizing a bound state in the continuum along an open acoustic waveguide comprising a periodic array of elastic materials. First, we formulate the periodic problem as a system of linear algebraic equations using a scattering matrix associated with a single unit structure of the waveguide. The scattering matrix is numerically constructed using the boundary element method. Subsequently, we employ the Sakurai--Sugiura method to determine resonant frequencies and the Floquet wavenumbers by solving a nonlinear eigenvalue problem for the linear system. We design the shape and topology of the unit elastic material such that the periodic structure has a real resonant wavenumber at a given frequency by minimizing the imaginary part of the resonant wavenumber. The proposed topology optimization scheme is based on a level-set method with a novel topological derivative. We demonstrate a numerical example of the proposed topology optimization and show that it realizes a bound state in the continuum through some numerical experiments.
description: 30 pages, 13 figures
Analysis of Synthetic Polymers by LC-MS using an APCI Interface
Creators: name: Desmazières, Bernard
name: Buchmann, Wiliam
name: Terrier, Peran
name: Tortajada, Jeanine
Publisher: name: Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), CNRS UMR8587, CEA, Université Evry val d'Essonne, Bat. Mapertuis, Boulevard François Mitterrand, 91025 Evry Cedex, France
Year: 2010
Subjects: Polymer chemistry
Polymers
Molecular structure
Mass spectrometry

description: In this work, the performance of the APCI interface will be investigated in SEC and LC-MS coupling applied to the analysis of industrial polymers up to molecular masses of 5 kDa: polyethers; polysiloxanes, and copolymers of siloxanes. Representative applications will be described to highlight benefits and limitations of the APCI technique.
description: Cites: Desmazières B, Buchmann W, Terrier P, Tortajada J. APCI Interface for LC- and SEC-MS Analysis of Synthetic Polymers: Advantages and Limits. Anal Chem. 2008 Feb 1;80(3):783-92. PMID: 18161946
Modelling preventive measures and their effect on generation times in emerging epidemics
Creators: name: Favero, Martina
name: Tomba, Gianpaolo Scalia
name: Britton, Tom
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Probability (math.PR)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We present a stochastic epidemic model to study the effect of various preventive measures, such as uniform reduction of contacts and transmission, vaccination, isolation, screening and contact tracing, on a disease outbreak in a homogeneously mixing community. The model is based on an infectivity process, which we define through stochastic contact and infectiousness processes, so that each individual has an independent infectivity profile. In particular, we monitor variations of the reproduction number and of the distribution of generation times. We show that some interventions, i.e. uniform reduction and vaccination, affect the former while leaving the latter unchanged, whereas other interventions, i.e. isolation, screening and contact tracing, affect both quantities. We provide a theoretical analysis of the variation of these quantities, and we show that, in practice, the variation of the generation time distribution can be significant and that it can cause biases in the estimation of reproduction numbers. The framework, because of its general nature, captures the properties of many infectious diseases, but particular emphasis is on COVID-19, for which numerical results are provided.
description: 26 pages, 4 figures, 5 tables
Profit and Loss Sharing in Agriculture: An Application of Islamic Banking
Creators: name: Crane, Laurence M.
name: Leatham, David J.
name: Crane, Laurence M.
name: Leatham, David J.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural Finance

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
Data Protection in Biomedical Research
Creators: name: Pinar Alper
name: Ded, Vilem
name: Tran, Jenny Thuy Dung
Publisher: name: Zenodo
Year: 2025
Subjects: gdpr
biomedical research
compliance
data protection

description: Slides for the data protection session of the training "Best practices in research data management and stewardship" organized by ELIXIR Luxembourg.
Evaluation of MALDI-TOF Mass spectrometry detection of DNA noncovalent complexes with basic polypeptides or polyamines
Creators: name: Terrier, Peran
name: Tortajada, Jeanine
name: Zin, Gregoire
name: Buchmann, Wiliam
Publisher: name: Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), CNRS UMR8587, CEA, Université Evry val d'Essonne, Bat. Mapertuis, Boulevard François Mitterrand, 91025 Evry Cedex, France
Year: 2010
Subjects: Biological chemistry
Molecular biology and interactions
DNA
Molecular interaction
Mass spectrometry

description: In this work, MALDI-MS was evaluated as a method for the study of noncovalent complexes involving DNA and basic polypeptides (penta-L-arginine, penta-L-lysine) or polyamines (polypropylenimine dendrimers, linear and branched polyethylenimines).
description: Cites: Terrier P, Tortajada J, Zin G, Buchmann W. Noncovalent Complexes Between DNA and Basic Polypeptides or Polyamines by MALDI-TOF. J Am Soc Mass Spectrom. 2007 Nov;18(11):1977-89. PMID: 17900921
Woman skeletal muscle transcriptome with bed rest and countermeasures
Creators: name: Chopard, Angèle
name: Lecunff, Martine
name: Danger, Richard
name: Lamirault, Guillaume
name: Bihouee, Audrey
name: Teusan, Raluca
name: Jasmin, Bernard
name: Marini, Jean-François
name: Leger, Jean
Publisher: name: Université de Nice Sophia Antipolis, 06103 Nice, France
Year: 2010
Subjects: Comparative physiology
Transcriptomics
Homo sapiens
Muscle Tissue
Transcription profiling
DNA microarray

description: Microgravity has a dramatic impact on human physiology, illustrated in particular with skeletal muscle impairment. A thorough understanding of the mechanisms leading to loss of muscle mass and structural disorders is necessary for the definition of efficient clinical and spaceflight countermeasures. We investigated the effects of long-term bed rest on transcriptome of soleus (SOL) and vastus lateralis (VL) muscles in healthy women (BRC group, n=8), and the potential beneficial impact of protein supplementation (BRN group, n=8) and of a combined resistance and aerobic training (BRE group, n=8). Biological samples were collected from Pre- and Post- bed rest (BR) soleus and vastus lateralis biopsies of each subject from the three groups (bed rest only: BRC; Exercise: BRE; Nutrition: BRN). six technical replicate values (2 duplicate hybridizations “a et b” to chips with triplicate spots “xxx”) were obtained for each skeletal muscle sample. Thus for each subject, 12 expression measurements (6 before BR and 6 after BR) were obtained for each muscle. Gene expression profiles were obtained using an in-house made microarray containing 6681 muscles-relevant genes. A two-class statistical analysis was applied on the 2103 genes with consolidated expression. We identified 472 and 207 modified genes, respectively for SOL and VL in BRC group. Further clustering approaches, identifying relevant biological mechanisms or pathways, underlined five main subclusters. Three are composed almost of upregulated genes involved mainly in nucleic acid and protein metabolism, and two composed almost of downregulated genes involved in energy metabolism. Exercise countermeasure demonstrated a drastic compensatory effect, decreasing the number of differentially-expressed genes by 89 and 96% in SOL and VL. In contrast, nutrition countermeasure had a moderate effect and decreased the number of differentially-expressed genes by 40 and 25% in SOL and VL. Our results allowed reporting a systematic, global and comprehensive view of long-term woman muscle atrophy and brought new lights and insights for space environment and for women who undergo a long-term clinical bed rest. This experiment has been deposited in the Gene Expression Omnibus (GEO) database under reference number GSE14798.
description: IsSupplementTo: Chopard A; Lecunff M; Danger R; Lamirault G; Bihouee A; Teusan R; Jasmin BJ; Marini JF; Leger JJ. Large-scale mRNA analysis of female skeletal muscles during 60 days of bed. Physiol Genomics. 2009 Aug 7;38(3):291-302. PMID: 19470803
Sharing research outputs and Creative Commons preference signals
Creators: name: Haustein, Stefanie
Publisher: name: Zenodo
Year: 2025
Subjects: open access
knowledge commons
scholarly publishing
AI
generative AI
machine learning
training data

description: Lightning talk at Creative Commons workshop "From Human to Machine Data" at Alexander von Humboldt Institut für Internet und Gesellschaft (HIIG), Berlin (Germany) on 23 April 2025
Hypseloecus
Creators: name: Yeshwanth, H. M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Hypseloecus

description: Key to species of Hypseloecus from India
1. Dorsum with patches of silvery white, scale-like setae, along with golden lanceolate sericeous scale-like setae (Figs 5, 6)............................................................................................ H. belli sp. nov.
- Dorsum with only lanceolate sericeous scale-like setae........................................................ 2
2. Endosoma with medial spine (Fig.41); left paramere strongly splayed out (Fig. 38).................. H. spinosus sp. nov.
- Endosoma without medial spine, left paramere weakly to moderately splayed out.................................. 3
3. Body and appendages pale yellow-brown; phallotheca with crenulations at apex on dorsal surface (Fig. 25); endosoma heavily sclerotized with serrations on outer and inner margins (Fig. 26)............................. H. articulatus sp. nov.
- Body and appendages dark brown or reddish brown; phallotheca without crenulations (smooth); endosoma moderately sclero- tized without any serrations..............................................................................4
4. Phallotheca pointed at apex (Fig. 20); endosoma J-shaped with apex flattened, secondary gonophore subtended by long glassy spicules (Fig. 21)....................................................................... H. acutus sp. nov.
- Phallotheca rounded finger-like (Fig. 35); endosoma long C-shaped with apex long and attenuated; secondary gonophore with short glassy spicules (Fig. 36)........................................................... H. orientale sp. nov.
description: Published as part of Yeshwanth, H. M., 2014, Five new species of Hypseloecus Reuter (Hemiptera: Miridae) on hemiparasitic Santalales from India, pp. 75-88 in Zootaxa 3878 (1) on page 76, DOI: 10.11646/zootaxa.3878.1.6, http://zenodo.org/record/287348
Flow and aerosol dispersion from wind musical instruments
Creators: name: Brosseau, Quentin
name: Ran, Ranjiangshang
name: Graham, Ian
name: Jerolmack, Douglas J.
name: Arratia, Paulo E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In the midst of the COVID-19 pandemic, many live musical activities had to be postponed and even canceled to protect musicians and audience. Orchestral ensembles face a particular challenge of contamination because they are personnel heavy and instrumentally diverse. A chief concern is whether wind instruments are vectors of contamination through aerosol dispersion. This study, made possible by the participation of members of the Philadelphia Orchestra, brings insight on the modes of production and early life of aerosols of human origin emitted by wind instruments. We find that these instruments produce aerosol levels that are comparable to normal speech in quantity and size distribution. However, the exit jet flow speeds are much lower than violent expiratory events (coughing, sneezing). For most wind instruments, the flow decays to background indoor-air levels at approximately 2 meters away from the instrument's opening. Long range aerosol dispersion is thus via ambient air currents.
An Analysis of the Canadian Gross Revenue Insurance Plan for Southern Saskatchewan
Creators: name: Janmaat, J.
name: VanKooten, G.C.
name: Janmaat, J.
name: VanKooten, G.C.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural Finance

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
A Factor Analysis Approach to Measuring the Effectiveness of Advertising
Creators: name: Gao, X.M.
name: Lee, L.J.
name: Gao, X.M.
name: Lee, L.J.
Publisher: name: Unknown
Year: 1992
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
Adaptive Resonance Theory-based Topological Clustering with a Divisive Hierarchical Structure Capable of Continual Learning
Creators: name: Masuyama, Naoki
name: Amako, Narito
name: Yamada, Yuna
name: Nojima, Yusuke
name: Ishibuchi, Hisao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Adaptive Resonance Theory (ART) is considered as an effective approach for realizing continual learning thanks to its ability to handle the plasticity-stability dilemma. In general, however, the clustering performance of ART-based algorithms strongly depends on the specification of a similarity threshold, i.e., a vigilance parameter, which is data-dependent and specified by hand. This paper proposes an ART-based topological clustering algorithm with a mechanism that automatically estimates a similarity threshold from the distribution of data points. In addition, for improving information extraction performance, a divisive hierarchical clustering algorithm capable of continual learning is proposed by introducing a hierarchical structure to the proposed algorithm. Experimental results demonstrate that the proposed algorithm has high clustering performance comparable with recently-proposed state-of-the-art hierarchical clustering algorithms.
description: This paper is accepted in IEEE Access
Comparison of Simultaneous and Independent Methods of Estimating Growing Season Futures Positions for Producers of Corn and Soybeans
Creators: name: McCamley, Francis
name: Rudel, Richard K.
name: McCamley, Francis
name: Rudel, Richard K.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
Didaktische Entscheidungsprozesse zum schreibenden  Lernen im NMG-Unterricht der Primarstufe:
Creators: name: Brütsch, Angela
Publisher: name: Pädagogische Hochschule Zürich
Year: 2023
Subjects: Sprachbewusster Fachunterricht
Schreiben im Fach
schreibendes Lernen
Deutschdidaktik
Fachdidaktik
Entscheidungsprozesse
Lehrmittel

description: Die vorliegende Masterarbeit erforscht mit einer qualitativen Herangehensweise die didak-tischen Entscheidungsprozesse, welche Lehrpersonen zum Einsatz von Schreibaktivitäten im NMG-Unterricht leiten. Die im Rahmen dieser Masterarbeit durchgeführten Leitfadenin-terviews mit neun Lehrpersonen machen deutlich, dass dokumentierende und konservie-rende Schreibaktivitäten einen grossen Anteil des NMG-Unterrichts der 5./6. Klasse aus-machen. Obwohl Lehrpersonen die Schüler:innen gezielt durch den Schreibprozess leiten und Scaffolds zur Verfügung stellen, erfordern die realisierten Textsorten kaum kognitive oder metakognitive Strategien. Die beschriebenen Texte dienen oft der Konstituierung des Wissens und nur selten dessen Transformation. Dadurch wird das Schreiben als Mittel zum Zweck eingesetzt, aber das gesamte Potenzial durch eine epistemische oder reflexive Ausrichtung des Schreibens für das Fachlernen wenig genutzt. Desweitern nutzen die Lehrpersonen das offizielle Lehrmittel «NaTech 5/6» kaum, um ihren Unterricht zu struktu-rieren. Zudem zeigt sich, dass sich Lehrpersonen vor allem an eigenen Erfahrungen oder am Austausch mit dem Kollegium für die didaktische Gestaltung von Schreibarrangements im NMG-Unterricht orientieren. Verweise auf formale Lerngelegenheiten aus der Aus- und Weiterbildung werden selten vorgenommen. Vor diesem Hintergrund wird empfohlen, diesbezügliche Angebote für Lehrpersonen dahingehend weiter auszubauen.
description: +repphzhbib2024MA
title: Deformation, erosion and natural resources in continental collision zones : insight from scaled sandbox simulations
Creators: name: Hoth, Silvan
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2005

description: Bivergent wedges result from the interaction between deformation, flexure and surface processes. Based on 2D sandbox simulations in conjunction with PIV, this study investigates the influence of these processes on the spatio-temporal evolution of strain-partitioning within, and the associated surface uplift of, bivergent wedges. To facilitate interpretation and to successfully communicate results, two new display types, i.e., the surface uplift and the evolution of deformation map are introduced.
Discrimination in Grain rates Before and After the Staggers Act
Creators: name: Falcon, Elmo T.
name: Anderson, Dale G.
name: Falcon, Elmo T.
name: Anderson, Dale G.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: Western Agricultural Economics Association Conference, Colorado Springs CO, July 12-15, 1992
Nonlinear optics in gallium phosphide cavities: simultaneous second and third harmonic generation
Creators: name: McLaughlin, Blaine
name: Lake, David P.
name: Mitchell, Matthew
name: Barclay, Paul E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the simultaneous generation of second and third harmonic signals from a telecom wavelength pump in a gallium phosphide (GaP) microdisk. Using analysis of the power scaling of both the second and third harmonic outputs and calculations of nonlinear cavity mode coupling factors, we study contributions to the third harmonic signal from direct and cascaded sum frequency generation processes. We find that despite the relatively high material absorption in gallium phosphide at the third harmonic wavelength, both of these processes can be significant, with relative magnitudes that depend closely on the detuning between the second harmonic wavelength of the cavity modes.
description: 13 pages, 4 figures
title: A high resolution global gravity field model combining CHAMP and GRACE satellite mission and surface data: EIGEN-CG01C
Creators: name: Reigber, Christoph
name: Schwintzer, P.
name: Stubenvoll, Richard
name: Schmidt, R.
name: Flechtner, Frank
name: Meyer, U.
name: König, Rolf
name: Neumayer, Karl-Hans
name: Förste, Christoph
name: Barthelmes, Franz
name: Zhu, S. Y.
name: Balmino, G.
name: Biancale, Richard
name: Lemoine, J.-M.
name: Meixner, H.
name: Raimondo, Jean-Claude
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2006

description: Scientific Technical Report STR ; 06/07
title: On the relation of stress and deformation fields to natural and induced seismicity
Creators: name: Bohnhoff, Marco
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2006

description: This work describes the results of seismological field campaigns and experiments usingcombined seismic networks of varying geometries such as a combined seismic downhole and surface network or a combined temporary local and permanent regional network. The networks were deployed in different tectonic environments, i.e. in a stable intraplate surrounding, at a plate boundary along a major transform fault zone and in forearc and backarc settings of a subduction zone to record different types of seismicity (induced earthquakes, aftershocks, subduction-related seismicity). Recording periods are typically several months. The basic ideas behind all the different experiments and studies presented here can be described as follows: In a first step, a state of the art seismic network is designed and deployed in a selected area to record local (micro)seismic activity at low magnitude detection threshold. The acquired data base is then evaluated using standard processing techniques to generate a proper hypocenter catalog for the area of investigation during the observational period. This period might be extended (at higher magnitude detection threshold) through re-evaluating and calibrating earlier hypocenter catalogs gained from records of regional permanent networks. This new catalog for the selected region then forms the base for further evaluation using different approaches one of which is the determination of fault planesolutions in order to determine the local stress field orientation and relate it to the WSM data or information on regional displacement fields determined from GPS recordings.
Leptonic scalar portal: Origin of muon $g-2$ anomaly and dark matter?
Creators: name: Gninenko, S. N.
name: Krasnikov, N. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a model explaining both the 4.2 $σ$ muon $g-2$ anomaly and the relic density of dark matter (DM) in which DM interacts with the Standard Model (SM) via a scalar portal boson $φ$ carrying both dark and SM leptonic numbers, and mediating a nondiagonal interaction between the electron and muon that allows $e \leftrightarrow μ$ transitions. The $φ$ could be produced in high-energy electron scattering off a target nuclei in the reaction $e Z \to μZφ$ followed by the prompt invisible decay $φ~\to$~DM particles and searched for in events with large missing energy accompanied by a single outgoing muon in the final state. Interestingly, several events with a similar signature have been observed in a data sample of $\simeq 3\times 10^{11}$ electrons on target collected during 2016-2018 for the search for light dark matter in the NA64 experiment at the CERN SPS [PRL {\bf 123}, 121801 (2019)]. Attributing so far these events to background allows us to set first constraints on the $φ$ mass and couplings while leaving at the same time decisively probing the origin of these events and a large fraction of the remaining parameter space to a near exiting future with the upgraded NA64 detector or other planned experiments.
description: 6 pages, 3 figures. References added, matches published version
title: New York Tunnels System
Creators: name: Dandy, Graeme
Publisher: name: University of Kentucky Libraries
Year: 2016

description: The New York Tunnels System represents the major water supply transmission tunnels for the City of New York in 1969. The system consists of 1 reservoir (Hill View) and 21 tunnels with two loops. The total length of tunnels is 69.2 miles and they range from 60 inches to 204 inches in diameter. The average daily demand of the system was 1305 million gallons.
description: Copyright:
© 2016 Graeme Dandy
This dataset is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided that the dataset creator and source are credited and that changes (if any) are clearly indicated.
An Economist's View of Salmon Recovery: The Case of the Columbia Basin
Creators: name: Whittlesey, Norman K.
name: Wandschneider, Phillip R.
name: Whittlesey, Norman K.
name: Wandschneider, Phillip R.
Publisher: name: Unknown
Year: 1991
Subjects: Livestock Production/Industries
Resource /Energy Economics and Policy

description: Western Agricultural Economics Association Conference, Portland OR, July 7-10, 1991
Access to Veterinary Drugs in Sub-Saharan Africa: Roadblocks and Current Solutions
Creators: name: Glória Jaime, Alexandre Hobeika and Muriel Figuié
Publisher: name: Zenodo
Year: 2022
Subjects: Access to medicines (ATM)
Animal Health
Veterinary drugs
SubSaharan Africa (SSA)
International pharmaceutical market
Supply chain

description: Access to veterinary drugs for livestock has become a major issue over the last decade. Analysis has tended to focus on the demand for these products, while studies looking at the drivers behind their use generally focus on farmer behavior and interactions between veterinarians and farmers. However, the use of drugs also depends on structural factors that determine the functioning of the drug supply chain and farmers' access to the drugs. This article presents an overview of the factors that limit access to veterinary drugs in sub-Saharan Africa (SSA) as well as the international policy tools and arrangements that claim to improve it.
Numerical prescriptions of early-time divergences of the in-in formalism
Creators: name: Tran, Duc Huy
name: Wang, Yi
name: Yang, Juanyi
name: Zhu, Yuhang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In quantum field theory, the in and out states can be related to the full Hamiltonian by the $iε$ prescription. A Wick rotation can further bring the correlation functions to Euclidean spacetime where the integrals are better defined. This setup is convenient for analytical calculations. However, for numerical calculations, an infinitesimal $ε$ or a Wick rotation of numerical functions are difficult to implement. We propose two new numerical methods to solve this problem, namely an Integral Basis method based on linear regression and a Beta Regulator method based on Cesàro/Riesz summation. Another class of partition-extrapolation methods previously used in electromagnetic engineering is also introduced. We benchmark these methods with existing methods using in-in formalism integrals, indicating advantages of these new methods over the existing methods in computation time and accuracy.
title: Retrieval of earthquake source parameters in inhomogeneous anisotropic media with application to swarm events in West Bohemia in 2000
Creators: name:  Rößler, Dirk
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2006

description: In der vorliegenden Arbeit werden der Einfluss seismischer Anisotropie auf wahre oder scheinbar auftretende tensile Quellanteile untersucht und Erdbebenmechanismen unter Berücksichtigung seismischer Anisotropie bestimmt. Es wird gezeigt, dass derMomententensor und die Abstrahlmuster eines Scherbruches im anisotropen Mediumdenen eines tensilen Bruches im isotropen Medium ähneln können. Umgekehrt tretenÄhnlichkeiten tensiler Beben in anisotropen Gesteinen mit Scherbrüchen in isotropenMedien auf. Damit existieren Mehrdeutigkeiten beobachteter tensiler Quellanteile. DieEffekte von Anisotropie hängen von der Orientierung des Bruches und vom Grad derAnisotropie ab. Außerdem beeinflusst Anisotropie das Moment eines Bebens. [...]Mit dieser Arbeit werden erstmals zeitliche und räumliche Veränderungen tensilerQuellanteile und Spannungszustände im Vogtland für Erdbeben im Jahr 2000 beob-achtet. Diese haben auch dann Bestand, wenn seismische Anisotropie berücksichtigtwird. Sie können durch Fluide erklärt werden, die in die Bruchflächen eindringen.
title: Lithospheric and upper mantle structure beneath the western Bohemian Massif obtained from teleseismic P and S receiver functions
Creators: name: Heuer, Barbara
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2006

description: This thesis focuses on the seismic structure of the lithosphere and upper mantle beneaththe western Eger Rift area with the aim of investigating deep-lying possible causes of the phenomena observed at surface.For the investigation, data of the international passive seismic experiment BOHEMAcarried out in 2002/2003 was used. The BOHEMA network consisted of 61 permanent and 84 temporary stations and was centred on the western Eger Rift. The resulting large data set allowed a high resolution P and S receiver function study using P-to-S and S-to-P converted waves, respectively, to map seismic discontinuities in the lithosphere and upper mantle. Data from an earlier passive seismic experiment was additionally used to complement the BOHEMA data set. The results of the analysis are described in this thesis ‘from top to bottom’. [...] Furthermore, the first map of average crustal vp/vs ratios is presented for the investigated area.
Economic Efficiency in Western Farm Credit System Associations
Creators: name: Collender, Robert
name: Nehring, Richard
name: Somwaru, Agapi
name: Collender, Robert
name: Nehring, Richard
name: Somwaru, Agapi
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural Finance

description: Western Agricultural Economics Association Conference, Portland OR, July 7-10, 1991
Exceptional Spectral Phase in a Dissipative Collective Spin Model
Creators: name: Rubio-García, Álvaro
name: Corps, Ángel L.
name: Relaño, Armando
name: Molina, Rafael A.
name: Pérez-Bernal, Francisco
name: García-Ramos, José Enrique
name: Dukelsky, Jorge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a model of a quantum collective spin weakly coupled to a spin-polarized Markovian environment and find that the spectrum is divided into two regions that we name normal and exceptional Liouvillian spectral phases. In the thermodynamic limit, the exceptional spectral phase displays the unique property of being made up exclusively of second order exceptional points. As a consequence, the evolution of any initial density matrix populating this region is slowed down and cannot be described by a linear combination of exponential decays. This phase is separated from the normal one by a critical line in which the density of Liouvillian eigenvalues diverges, a phenomenon analogous to that of excited-state quantum phase transitions observed in some closed quantum systems. In the limit of no bath polarization, this criticality is transferred onto the steady state, implying a dissipative quantum phase transition and the formation of a boundary time crystal.
description: 5 pages, 4 figures; Letter in Phys. Rev. A
Synchronization in the Kuramoto model in presence of stochastic resetting
Creators: name: Sarkar, Mrinal
name: Gupta, Shamik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: What happens when the paradigmatic Kuramoto model involving interacting oscillators of distributed natural frequencies and showing spontaneous collective synchronization in the stationary state is subject to random and repeated interruptions of its dynamics with a reset to the initial condition? While resetting to a synchronized state, it may happen between two successive resets that the system desynchronizes, which depends on the duration of the random time interval between the two resets. Here, we unveil how such a protocol of stochastic resetting dramatically modifies the phase diagram of the bare model, allowing in particular for the emergence of a synchronized phase even in parameter regimes for which the bare model does not support such a phase. Our results are based on an exact analysis invoking the celebrated Ott-Antonsen ansatz for the case of Lorentzian distribution of natural frequencies, and numerical results for Gaussian frequency distribution. Our work provides a simple protocol to induce global synchrony in the system through stochastic resetting.
description: Invited contribution to journal "Chaos" Special Issue "Dynamics of Oscillator Populations" edited by Arkady Pikovsky and Michael Rosenblum
title: Microfacies and isotope analyses of the varved Piànico lake sediment profile for high-resolution reconstruction of interglacial climate dynamics
Creators: name: Mangili, Clara
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2007

description: Understanding the climate system and the natural processes that lead to its changes is fundamental when trying to evaluate and assess the human influence on climate variability. Human activities characterised most of the Holocene time period, so that palaeoclimate sequences of the last 8,000 years recorded both climate change and human impact. In order to study natural climate variability, we have to investigate past interglacial climate records, when human impact was none.Amongst many palaeoclimate archives, lacustrine varved sequences are invaluable records that allow high resolution palaeoclimate reconstruction.The interglacial lake deposits of Piànico (Southern Alps) consist of ca 15,500 biochemically precipitated calcite varves. The goal of my research is the sedimentological, geochemical and isotopical study at seasonal/decadal resolution of climate variability as recorded in this sequence.The chronology obtained from varve counting constitutes a floating chronology of an interglacial period; the recovery of two tephra layers allowed to fix the floating chronology to the interglacial centred at 400 ka BP, thus corresponding to MIS 11.I studied the upper 5,900 varves at seasonal resolution, using a multi proxy approach. The thickness of summer layers is the proxy for productivity and spring-summer temperature, whereas detrital layers indicate extreme precipitation events; δ18O has been used as a proxy for temperature and/or air masses circulation. I developed a new sampling technique for isotope analyses, in order to ensure the sampling of endogenic calcite, avoiding detrital contamination; this method also allowed me to quantify the effect of Triassic dolomite in bulk carbonate samples. The 15.5 ka of interglacial conditions in Piànico are characterised by short-term climate change.At least four rapid climatic oscillations and a climatic deterioration at the very end of the 15,500 years are recorded. The main climatic oscillation is a 1000 years long cold period that took place after ca 10,000 years of interglacial conditions. This type of climate oscillation has not been recorded in the Holocene yet. This implies that, sofar, the Holocene has not experienced all the possible range of interglacial climate changes.