cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A precedence-constraint-posting procedure to generate schedules maximizing quality with anytime property
Creators: name: Xiaofang  Wang
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Abstract: "Inspired by the popularity of anytime algorithms in solving complex real world problems, we define a class of scheduling problems. In addition to the normal resource constrained project scheduling assumptions, each activity in a project has a quality profile with an anytime property, which means that it can be stopped at any time and the quality of the output is proportional to its duration. Instead of finishing all activities as fast as possible, the goal of scheduling is to maximize the sum of qualities given a hard project due data. We formulate this quality maximization problem as a constraint-based optimization problem, analyze its complexity and present a precedence constraint posting procedure for generating a schedule with a good quality sum. Different constraint posting heuristics are evaluated based on the solution they can produce, CPU time and the number of posted constraints."
The VizieR database of Astronomical Catalogues
Creators: name: Ochsenbein, Francois
name: Bauer, Patricia
name: Marcout, James
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: VizieR is a database grouping in an homogeneous way thousands of astronomical catalogues gathered since decades by the Centre de Donnees de Strasbourg (CDS) and participating institutes. The history and current status of this large collection is briefly presented, and the way these catalogues are being standardized to fit in the VizieR system is described. The architecture of the database is then presented, with emphasis on the management of links and of accesses to very large catalogues. Several query interfaces are currently available, making use of the ASU protocol, for browsing purposes or for use by other data processing systems such as visualisation tools.
description: 10 pages, 2 Postscript figures; to be published in A&AS
RNA-Seq reveals changes in human placental metabolism, transport and endocrinology across the first-second trimester transition.
Creators: name: Prater, Malwina
name: Hamilton, Russell S
name: Wa Yung, Hong
name: Sharkey, Andrew M
name: Robson, Paul
name: Abd Hamid, N Erlyani
name: Jauniaux, Eric
name: Charnock-Jones, D Stephen
name: Burton, Graham J
name: Cindrova-Davies, Tereza
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Metabolism
Methylation
Transcriptome
Human Pregnancy
Early Placenta

description: The human placenta is exposed to major environmental changes towards the end of the first trimester associated with full onset of the maternal arterial placental circulation. Changes include a switch from histotrophic to hemotrophic nutrition, and a threefold rise in the intraplacental oxygen concentration. We evaluated their impact on trophoblast development and function using RNA-sequencing (RNA-Seq) and DNA-methylation analyses performed on the same chorionic villous samples at 7-8 (n=8) and 13-14 (n=6) weeks of gestation. Reads were adjusted for fetal sex. Most DEGs were associated with protein processing in the endoplasmic reticulum (ER), hormone secretion, transport, extracellular matrix, vasculogenesis, and reactive oxygen species metabolism. Transcripts higher in the first trimester were associated with synthesis and ER processing of peptide hormones, and glycolytic pathways. Transcripts encoding proteins mediating transport of oxygen, lipids, protein, glucose, and ions were significantly increased in the second trimester. The motifs of CBX3 and BCL6 were significantly overrepresented, indicating the involvement of these transcription factor networks in the regulation of trophoblast migration, proliferation and fusion. These findings are consistent with a high level of cell proliferation and hormone secretion by the early placenta to secure implantation in a physiological low-oxygen environment.
Additional file 1 of Oxidative stress facilitates infection of the unicellular alga Haematococcus pluvialis by the fungus Paraphysoderma sedebokerense
Creators: name: Yan, Hailong
name: Ma, Haiyan
name: Li, Yanhua
name: Zhao, Liang
name: Lin, Juan
name: Jia, Qikun
name: Hu, Qiang
name: Han, Danxiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Activity of the filtrated SPI in degrading cellular carbohydrates and pigments. Figure S1. Pigment degrading activity of SPI harvesting from the algal cultures at various infection stage. Figure S2. Morphological changes of the algal cells treated with the screened metabolites. Figure S3. Fe3+ reducing activity of the screened metabolites. Figure S4. Hydroxyl radical production of the screened metabolites.
Radiative Corrections to Elastic Electron-Proton Scattering for Polarized Electrons
Creators: name: Maximon, L. C.
name: Parke, W. C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the radiative correction to high energy elastic electron-proton scattering of polarized electrons. We show that if the approximations inherent in the calculations developed by Tsai and given in the work of Mo and Tsai, which have been used in the analysis of almost all experimental data pertaining to medium and high energy elastic electron scattering for the past three decades, are maintained, then the same radiative correction applies both in the case of initially polarized and unpolarized electrons.
description: 7 pages, no figures
The temporal mutational and immune tumour microenvironment remodelling of HER2-negative primary breast cancers.
Creators: name: De Mattos-Arruda, Leticia
name: Cortes, Javier
name: Blanco-Heredia, Juan
name: Tiezzi, Daniel G
name: Villacampa, Guillermo
name: Gonçalves-Ribeiro, Samuel
name: Paré, Laia
name: Souza, Carla Anjos
name: Ortega, Vanesa
name: Sammut, Stephen-John
name: Cusco, Pol
name: Fasani, Roberta
name: Chin, Suet-Feung
name: Perez-Garcia, Jose
name: Dienstmann, Rodrigo
name: Nuciforo, Paolo
name: Villagrasa, Patricia
name: Rubio, Isabel T
name: Prat, Aleix
name: Caldas, Carlos
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: The biology of breast cancer response to neoadjuvant therapy is underrepresented in the literature and provides a window-of-opportunity to explore the genomic and microenvironment modulation of tumours exposed to therapy. Here, we characterised the mutational, gene expression, pathway enrichment and tumour-infiltrating lymphocytes (TILs) dynamics across different timepoints of 35 HER2-negative primary breast cancer patients receiving neoadjuvant eribulin therapy (SOLTI-1007 NEOERIBULIN-NCT01669252). Whole-exome data (N = 88 samples) generated mutational profiles and candidate neoantigens and were analysed along with RNA-Nanostring 545-gene expression (N = 96 samples) and stromal TILs (N = 105 samples). Tumour mutation burden varied across patients at baseline but not across the sampling timepoints for each patient. Mutational signatures were not always conserved across tumours. There was a trend towards higher odds of response and less hazard to relapse when the percentage of subclonal mutations was low, suggesting that more homogenous tumours might have better responses to neoadjuvant therapy. Few driver mutations (5.1%) generated putative neoantigens. Mutation and neoantigen load were positively correlated (R2 = 0.94, p = <0.001); neoantigen load was weakly correlated with stromal TILs (R2 = 0.16, p = 0.02). An enrichment in pathways linked to immune infiltration and reduced programmed cell death expression were seen after 12 weeks of eribulin in good responders. VEGF was downregulated over time in the good responder group and FABP5, an inductor of epithelial mesenchymal transition (EMT), was upregulated in cases that recurred (p
A Planning Framework for Non-prehensile Manipulation under Clutter and Uncertainty
Creators: name: Dogar, Mehmet R.
name: Siddhartha Srinivasa
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Robotic manipulation systems suffer from two main problems in unstructured human environments: uncertainty and clutter. We introduce a planning framework addressing these two issues. The framework plans rearrangement of clutter using non-prehensile actions, such as pushing. Pushing actions are also used to manipulate object pose uncertainty. The framework uses an action library that is derived analytically from the mechanics of pushing and is provably conservative. The framework reduces the problem to one of combinatorial search, and demonstrates planning times on the order of seconds. With the extra functionality, our planner succeeds where traditional grasp planners fail, and works under high uncertainty by utilizing the funneling effect of pushing. We demonstrate our results with experiments in simulation and on HERB, a robotic platform developed at the Personal Robotics Lab at Carnegie Mellon University.
SENSE: A comparison of photon detection efficiency and optical crosstalk of various SiPM devices
Creators: name: Nagai, A.
name: Alispach, C.
name: Berghöfer, T.
name: Bonanno, G.
name: Coco, V.
name: della Volpe, D.
name: Haungs, A.
name: Heller, M.
name: Henjes-Kunst, K.
name: Mirzoyan, R.
name: Montaruli, T.
name: Romeo, G.
name: Renier, Y.
name: Schultz-Coulon, H. C.
name: Shen, W.
name: Strom, D.
name: Tajima, H.
name: Troyano-Pujadas, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This paper describes a comparison of photon detection efficiency and optical crosstalk measurements performed by three partners: Geneva University, Catania Observatory and Nagoya University. The measurements were compared for three different SiPM devices with different active areas: from 9 $mm^2$ up to 93.6 $mm^2$ produced by Hamamatsu. The objective of this work is to establish the measurements and analysis procedures for calculating the main SiPM parameters and their precision. This work was done in the scope of SENSE project which aims to build roadmap for the last developments in field of sensors for low light level detection.
Extraction optimization, structural characterization of soluble dietary fiber from Morchella importuna, and its in vitro fermentation impact on gut microbiota and short-chain fatty acids
Creators: name: Lei, Jiayu
name: Zhang, Yuting
name: Guo, Dongdong
name: Meng, Junlong
name: Feng, Cuiping
name: Xu, Lijing
name: Cheng, Yanfen
name: Liu, Rongzhu
name: Chang, Mingchang
name: Geng, Xueran
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Soluble dietary fiber was extracted from spent Morchella importuna by optimizing the extraction conditions using the response surface method. Response surface analysis results indicated that the extraction yield of MI-SDF reached up to 15.38 ± 0.16% under the optimized conditions with optimal lye concentration of 2.9%, extraction temperature of 71°C and extraction time of 2 h. The results of scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction analyses suggested that M. importuna-derived soluble dietary fiber (MI-SDF) exhibited the typical porous fiber structures, polysaccharide functional groups, and cellulose crystal structure. And MI-SDF was applicable to food processing at <250°C. During in vitro fecal fermentation, MI-SDF significantly increased the abundance and diversity of beneficial bacteria and decreased those of harmful bacteria. The levels of total and individual short-chain fatty acids were significantly increased. This study will provide valuable information for further investigation of MI-SDF.
Age and metallicity gradients in the Galactic Bulge - A differential study using HST/WFPC2
Creators: name: Feltzing, Sofia
name: Gilmore, Gerard
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Galactic Bulge has long been assumed to be a largely old stellar population. However, some recent studies based on observations with the HST WF/PC-1 and WFPC2 of stars in the Galactic Bulge have concluded that the old population may not make up more then 30% of the total. Other studies using HST/WFPC2 differential studies of `Bulge' globular clusters and field stars have found the bulge to be comparable in age to the Galactic Halo. A complication in all these studies is the presence of a substantial population of stars which mimic a young bulge population, but which may be, and are often assumed to be, foreground disk stars whose reddening and distance distributions happen to mimic a young bulge turnoff. We show, using number counts in HST/WFPC2 colour-magnitude diagrams of both field stars in the Bulge and of two `bulge' and one `disk' globular cluster (NGC6528, NGC6553, and NGC5927) that the stars interpreted as young in fact are foreground disk stars. Thus, we confirm that the bulk of the bulge field stars in Baade's Window are old. The existence of a young metal-rich population cannot, however, be ruled out from our data. We also test for age and metallicity gradients using the CMD of a metal-rich globular cluster as an empirical isochrone and derive a metallicity difference of <0.2 dex between Baade's window and SGR-I window.
description: Accepted for publication in Astronomy and Astrophysics main journal
A perturbation approach to robot calibration
Creators: name: H. O. K. Kirchner
name: B  Gurumoorthy
name: F. B. Prinz
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Robotics Institute
A Perception and Manipulation System for Collecting Rock Samples
Creators: name: T.  Choi
name: H.  Delingette
name: M.  DeLuis
name: Y.  Hsin
name: Hebert, Martial
name: Ikeuchi, Katsushi
Publisher: name: Carnegie Mellon University
Year: 1990
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Robotics Institute
Additional file 2 of Identification of an alternative splicing signature as an independent factor in colon cancer
Creators: name: Chen, Haitao
name: Luo, Jun
name: Guo, Jianchun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2.
The influence of decision-making in tree ring-based climate reconstructions.
Creators: name: Büntgen, Ulf
name: Allen, Kathy
name: Anchukaitis, Kevin J
name: Arseneault, Dominique
name: Boucher, Étienne
name: Bräuning, Achim
name: Chatterjee, Snigdhansu
name: Cherubini, Paolo
name: Churakova Sidorova, Olga V
name: Corona, Christophe
name: Gennaretti, Fabio
name: Grießinger, Jussi
name: Guillet, Sebastian
name: Guiot, Joel
name: Gunnarson, Björn
name: Helama, Samuli
name: Hochreuther, Philipp
name: Hughes, Malcolm K
name: Huybers, Peter
name: Kirdyanov, Alexander V
name: Krusic, Paul J
name: Ludescher, Josef
name: Meier, Wolfgang J-H
name: Myglan, Vladimir S
name: Nicolussi, Kurt
name: Oppenheimer, Clive
name: Reinig, Frederick
name: Salzer, Matthew W
name: Seftigen, Kristina
name: Stine, Alexander R
name: Stoffel, Markus
name: St George, Scott
name: Tejedor, Ernesto
name: Trevino, Aleyda
name: Trouet, Valerie
name: Wang, Jianglin
name: Wilson, Rob
name: Yang, Bao
name: Xu, Guobao
name: Esper, Jan
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: Tree-ring chronologies underpin the majority of annually-resolved reconstructions of Common Era climate. However, they are derived using different datasets and techniques, the ramifications of which have hitherto been little explored. Here, we report the results of a double-blind experiment that yielded 15 Northern Hemisphere summer temperature reconstructions from a common network of regional tree-ring width datasets. Taken together as an ensemble, the Common Era reconstruction mean correlates with instrumental temperatures from 1794-2016 CE at 0.79 (p
Statistical Inference for the Population Landscape via Moment Adjusted Stochastic Gradients
Creators: name: Liang, Tengyuan
name: Su, Weijie
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Modern statistical inference tasks often require iterative optimization methods to compute the solution. Convergence analysis from an optimization viewpoint only informs us how well the solution is approximated numerically but overlooks the sampling nature of the data. In contrast, recognizing the randomness in the data, statisticians are keen to provide uncertainty quantification, or confidence, for the solution obtained using iterative optimization methods. This paper makes progress along this direction by introducing the moment-adjusted stochastic gradient descents, a new stochastic optimization method for statistical inference. We establish non-asymptotic theory that characterizes the statistical distribution for certain iterative methods with optimization guarantees. On the statistical front, the theory allows for model mis-specification, with very mild conditions on the data. For optimization, the theory is flexible for both convex and non-convex cases. Remarkably, the moment-adjusting idea motivated from "error standardization" in statistics achieves a similar effect as acceleration in first-order optimization methods used to fit generalized linear models. We also demonstrate this acceleration effect in the non-convex setting through numerical experiments.
description: Journal of the Royal Statistical Society: Series B (Statistical Methodology) 2019, to appear
Cusps without chaos
Creators: name: Sridhar, S.
name: Touma, J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present cuspy, non-axisymmetric, scale-free mass models of discs, whose gravitational potentials are of Stäckel form in parabolic coordinates. A black hole may be added at the centre, without in any way affecting the Stäckel form; the dynamics in these potentials is, of course, fully integrable. The surface density, $Σ_{disc}\propto 1/r^γ$, where $0
description: 4 pages, 2 figures, submitted to MNRAS
A Partial Analysis of the High Speed Autonomous Navigation Problem
Creators: name: Kelly, Alonzo
Publisher: name: Carnegie Mellon University
Year: 1994
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: This report examines the general problem of high speed autonomous navigation from range image data as it applies to both stereo and lidar sensing systems. In order to intelligently guarantee its own safety, a high speed vehicle must be able to resolve the smallest obstacle that can present a hazard, process sensory data at a rate commensurate with its speed, respond fast enough to avoid obstacles, and maintain a sufficiently accurate model of the world to enable it to make correct decisions. These dimensions of the problem are analysed in a nondimensional manner and the implications of satisfying all requirements simultaneously are investigated. In this analysis, it is shown that to adopt a policy of guaranteed vehicle safety is to adopt a computational complexity of O ([TV]N)for range image processing where T is the vehicle reaction time and V is the velocity. This result implies that increased vehicle speed will require nonlinear growth in computational bandwidth. Further, it identifies the fundamental tradeoff of finite computing resources as one of speed for either resolution or reliability. The conclusions of this report are the theoretical justification for the adaptive, real-time controller design of the RANGER cross country navigator.
Ending AIDS as a public health threat by 2030: Time to reset targets for 2025.
Creators: name: De Lay, Paul R
name: Benzaken, Adèle
name: Karim, Quarraisha Abdool
name: Aliyu, Sani
name: Amole, Carolyn
name: Ayala, George
name: Chalkidou, Kalipso
name: Chang, Judy
name: Clayton, Michaela
name: Couto, Aleny
name: Dieffenbach, Carl
name: Dybul, Mark
name: El Sadr, Wafaa
name: Gorgens, Marelize
name: Low-Beer, Daniel
name: Mesbah, Smail
name: Saveedra, Jorge
name: Sirinirund, Petchsri
name: Stover, John
name: Syarif, Omar
name: Taslim, Aditia
name: Thiam, Safiatou
name: Njenga, Lucy Wanjiku
name: Ghys, Peter D
name: Izazola-Licea, Jose Antonio
name: Frescura, Luisa
name: Lamontagne, Erik
name: Godfrey-Faussett, Peter
name: Fontaine, Christopher
name: Semini, Iris
name: Hader, Shannon
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: Paul De Lay and co-authors introduce a Collection on the design of targets for ending the AIDS epidemic.
Quasi-spherical collapse of matter in $Λ$CDM
Creators: name: Rampf, Cornelius
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the findings of new exact analytical solutions to the cosmological fluid equations, namely for the case where the initial conditions are perturbatively close to a spherical top-hat profile. To do so we enable a fluid description in a Lagrangian-coordinates approach, and prove the convergence of the Taylor-series representation of the Lagrangian displacement field until the time of collapse ("shell-crossing"). This allows the determination of the time for quasi-spherical collapse, which is shown to happen generically earlier than in the spherical case. For pedagogical reasons, calculations are first given for a spatially flat universe that is only filled with a non-relativistic component of cold dark matter (CDM). Then, the methodology is updated to a $Λ$CDM Universe, with the inclusion of a cosmological constant $Λ>0$.
description: v1: 9 pages, 5 figures; v2: 13 pages, 7 figures. Major revision: results unchanged, however generalised the calculations to a LCDM Universe (upon request from the referee) and extended the discussion; changed title
The global and promoter-centric 3D genome organization temporally resolved during a circadian cycle.
Creators: name: Furlan-Magaril, Mayra
name: Ando-Kuri, Masami
name: Arzate-Mejía, Rodrigo G
name: Morf, Jörg
name: Cairns, Jonathan
name: Román-Figueroa, Abraham
name: Tenorio-Hernández, Luis
name: Poot-Hernández, A César
name: Andrews, Simon
name: Várnai, Csilla
name: Virk, Boo
name: Wingett, Steven W
name: Fraser, Peter
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Transcription regulation
Circadian rhythms
Enhancers
Tads
Circadian Gene Expression
Chromatin Compartments
Genome 3D Organization
Promoter Interactions

description: BackgroundCircadian gene expression is essential for organisms to adjust their physiology and anticipate daily changes in the environment. The molecular mechanisms controlling circadian gene transcription are still under investigation. In particular, how chromatin conformation at different genomic scales and regulatory elements impact rhythmic gene expression has been poorly characterized.ResultsHere we measure changes in the spatial chromatin conformation in mouse liver using genome-wide and promoter-capture Hi-C alongside daily oscillations in gene transcription. We find topologically associating domains harboring circadian genes that switch assignments between the transcriptionally active and inactive compartment at different hours of the day, while their boundaries stably maintain their structure over time. To study chromatin contacts of promoters at high resolution over time, we apply promoter capture Hi-C. We find circadian gene promoters displayed a maximal number of chromatin contacts at the time of their peak transcriptional output. Furthermore, circadian genes, as well as contacted and transcribed regulatory elements, reach maximal expression at the same timepoints. Anchor sites of circadian gene promoter loops are enriched in DNA binding sites for liver nuclear receptors and other transcription factors, some exclusively present in either rhythmic or stable contacts. Finally, by comparing the interaction profiles between core clock and output circadian genes, we show that core clock interactomes are more dynamic compared to output circadian genes.ConclusionOur results identify chromatin conformation dynamics at different scales that parallel oscillatory gene expression and characterize the repertoire of regulatory elements that control circadian gene transcription through rhythmic or stable chromatin configurations.
HARMONise – Enhancing the interoperability of marine biomolecular (meta)data across Helmholtz Centres
Creators: name: Bienhold, Christina
Publisher: name: Zenodo
Year: 2024

description: Biomolecules, such as DNA and RNA, provide a wealth of information about the distribution and function of marine organisms, and biomolecular research in the marine realm is pursued across several Helmholtz Centers. Biomolecular metadata, i.e. DNA and RNA sequences and all steps involved in their creation, exhibit great internal diversity and complexity. However, high-quality (meta)data management is not yet well developed and harmonized in environmentally focused Helmholtz Centers. As part of the HMC Project HARMONise, we develop sustainable solutions and digital cultures to enable high-quality, standards-compliant curation and management of marine biomolecular metadata at AWI and GEOMAR to better embed biomolecular science into broader digital ecosystems and research domains. Our approach builds on a relational database that aligns metadata with community standards such as the MIxS (Minimum Information about any (x) sequence) supported by the International Nucleotide Sequence Database Collaboration (INSDC) to promote global interoperability. At the same time, we ensure the harmonization of metadata with existing Helmholtz repositories (e.g. PANGAEA). A web-based hub will enable the standardized export and exchange of core metadata. Alignment with domain-specific standards and relevant data exchange formats (e.g. UNESCO ODIS-Arch specifications) supports connectivity to the Helmholtz knowledge graph as well as global interoperability. Here we will highlight the use of standards and fields in the database scheme that promote interoperability, outline the establishment of a web-based exchange hub for sharing and validating biomolecular metadata across Helmholtz Centers, and present links with high-level international programs such as the Ocean Biomolecular Observing Network (OBON) of the UN Decade of Ocean Science. Enabling sustainable data stewardship, export and publication routines will support researchers in delivering Helmholtz biomolecular data to national European and global repositories in alignment with community standards and the FAIR principles.
Quasinormal Modes in Extremal Reissner–Nordström Spacetimes
Creators: name: Gajic, Dejan
name: Warnick, Claude
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article

description: Abstract: We present a new framework for characterizing quasinormal modes (QNMs) or resonant states for the wave equation on asymptotically flat spacetimes, applied to the setting of extremal Reissner–Nordström black holes. We show that QNMs can be interpreted as honest eigenfunctions of generators of time translations acting on Hilbert spaces of initial data, corresponding to a suitable time slicing. The main difficulty that is present in the asymptotically flat setting, but is absent in the previously studied asymptotically de Sitter or anti de Sitter sub-extremal black hole spacetimes, is that L2-based Sobolev spaces are not suitable Hilbert space choices. Instead, we consider Hilbert spaces of functions that are additionally Gevrey regular at infinity and at the event horizon. We introduce L2-based Gevrey estimates for the wave equation that are intimately connected to the existence of conserved quantities along null infinity and the event horizon. We relate this new framework to the traditional interpretation of quasinormal frequencies as poles of the meromorphic continuation of a resolvent operator and obtain new quantitative results in this setting.
Spin-orbit coupling induced valley Hall effects in transition-metal dichalcogenides
Creators: name: Zhou, Benjamin T.
name: Taguchi, Katsuhisa
name: Kawaguchi, Yuki
name: Tanaka, Yukio
name: Law, K. T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In transition-metal dichalcogenides, electrons in the K-valleys can experience both Ising and Rashba spin-orbit couplings. In this work, we show that the coexistence of Ising and Rashba spin-orbit couplings leads to a special type of valley Hall effect, which we call spin-orbit coupling induced valley Hall effect. Importantly, near the conduction band edge, the valley-dependent Berry curvatures generated by spin-orbit couplings are highly tunable by external gates and dominate over the intrinsic Berry curvatures originating from orbital degrees of freedom under accessible experimental conditions. We show that the spin-orbit coupling induced valley Hall effect is manifested in the gate dependence of the valley Hall conductivity, which can be detected by Kerr effect experiments.
description: 5 pages, 3 figures. Comments are welcome
Parentino a New York. Un antefatto del Polifilo
Creators: name: Guidi, Francesco
Publisher: name: INTRECCI d'arte
Year: 2019
Subjects: Bernardino da Parenzo; Bernardo Parentino; Hypnerotomachia Poliphili; Polifilo; dio ambiguo; umanesimo; Tempo

description: L'articolo prende in esame un disegno di Bernardino da Parenzo, la Scena all'antica (il cosiddetto Trionfo di Giove) conservata alla Pierpont Morgan Library di New York e il suo rapporto con una xilografia della Hypnerotomachia Poliphili. Dopo una revisione critica rivolta specialmente alla cronologia di alcune opere del corpus grafico parentiniano, il soggetto dell'opera newyorchese è studiato a partire dal dettaglio della figura alata che reca un cartiglio con la singolare dedica «al dio ambiguo». Formulando possibili ipotesi di identificazione, nessuna delle quali pienamente convincente, si giunge a concludere che il foglio è un Trionfo del dio ambiguo, o dell'Ambiguità, la cui valenza assumeva certo un segno positivo nel contesto culturale dei collezionisti-antiquari padani per i quali il disegno poteva essere stato realizzato. La stessa iscrizione rivolta al dio ambiguo compare anche in una xilografia della Hypnerotomachia Poliphili di Francesco Colonna (Aldo Manuzio, Venezia 1499). Parentino era artista noto nell'ambiente tipografico veneziano, e, negli anni immediatamente precedenti alla pubblicazione del romanzo, lavorava per i monaci di Santa Giustina, committenti anche di Benedetto Bordon, principale illustratore dell'opera di Colonna. Non è azzardato pensare che composizioni di quel genere potessero essere note a Colonna e innescassero la sua fantasia ricreativa, che si esercita sull'antichità come su opere recenti, in quel contesto di temporalità 'anacronica' e di rapporto con le fonti a cui è dedicata la conclusione del contributo.
description: INTRECCI d'arte, N. 8 (2019)
A new approach to control single-link flexible arms.
Creators: name: Feliu, Vicente
name: Rattan, Kuldip S.
name: H. Benjamin. Brown
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Abstract: "This third report describes a new method to control single-link lumped-mass flexible arms in the case of having friction in the joint and changes in the payload. Both linear and nonlinear friction components are overcome by using the very robust control scheme developed in the second report, which is based on two nested feedback loops: an inner one that controls the motor position and an outer one that controls the tip position. In order to compensate for changes in the payload, an adaptive control scheme is used. Two cases are considered when compensating for changes in the tip payload: the arm is a minimum phase system or a non-minimum phase one. Different adaptive control schemes are proposed in each case. In them, compensation for changes in the load is achieved in two steps: first the tip payload is estimated from a very simple procedure proposed here, and then the feedforward and feedback controllers are tuned according to this estimated value. It results in a quite simple control law that can be used for real-time control of flexible arms, and that needs minimal computing effort. Experimental results are shown."
Radiative Corrections to Electron-Proton Scattering
Creators: name: Maximon, L. C.
name: Tjon, J. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The radiative corrections to elastic electron-proton scattering are analyzed in a hadronic model including the finite size of the nucleon. For initial electron energies above 8 GeV and large scattering angles, the proton vertex correction in this model increases by at least two percent the overall factor by which the one-photon exchange (Rosenbluth) cross section must be multiplied. The contribution of soft photon emission is calculated exactly. Comparison is made with the generally used expressions previously obtained by Mo and Tsai. Results are presented for some kinematics at high momentum transfer.
description: 31 pages, 4 figures
Additional file 2 of Changes in the gut microbiome and fermentation products concurrent with enhanced longevity in acarbose-treated mice
Creators: name: Smith, Byron
name: Miller, Richard
name: Ericsson, Aaron
name: Harrison, David
name: Strong, Randy
name: Schmidt, Thomas
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Taxonomic analysis of two dominant OTUs. (PDF 58 kb)
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Cart. 188 (11 H 73), f. 0120r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Archives départementales de la Côte-d'Or, Cart. 188 (11 H 73), f. 0120r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IV, Archives départementales de la Côte-d'Or, Cart. 188 (11 H 73), f. 0120r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: abbaye de Cîteaux
Theoretical Aspects of the Heavy Quark Expansion
Creators: name: Uraltsev, N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I give a brief outline of the theoretical framework for the modern treatment of the strong interaction effects in heavy quark decays, based on first principles of QCD. This model-independent approach is required to meet the precision of current and future experiments. Applications to a few problems of particular practical interest are reviewed, including the precise determination of V_{cb} and V_{ub}. I emphasize the peculiarities of simultaneously accounting for the perturbative and power-suppressed effects necessary for accurate predictions.
description: 18 pages, 2 Figures in the text; LaTeX. Invited lecture presented at the Workshop "Beauty `96", Rome, 17-21 June 1996; Minor stylistic changes, typos corrected, a double reference deleted; to appear in Proc. "Beauty `96" (Nucl. Instrum. & Methods A, 1996)
Additional file 4 of Changes in the gut microbiome and fermentation products concurrent with enhanced longevity in acarbose-treated mice
Creators: name: Smith, Byron
name: Miller, Richard
name: Ericsson, Aaron
name: Harrison, David
name: Strong, Randy
name: Schmidt, Thomas
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Expanded survival analysis. (PDF 44 kb)
Non-Fermi liquid scattering against an emergent Bose liquid: manifestations in the kink and other exotic quasiparticle behaviors in the normal-state cuprate superconductors
Creators: name: Jiang, Shengtao
name: Zou, Long
name: Ku, Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The normal state of cuprate superconductors exhibits many exotic behaviors qualitatively different from the Fermi liquid, the foundation of condensed matter physics. Here we demonstrate that non-Fermi liquid behaviors emerge naturally from scattering against an emergent Bose liquid. Particularly, we find a finite zero-energy scattering rate at low-temperature limit that grows linearly with respect to temperature, against clean fermions' generic non-dissipative characteristics. Surprisingly, three other seemingly unrelated experimental observations are also produced, including the well-studied "kink" in the quasi-particle dispersion, as well as the puzzling correspondences between the normal and superconducting state. Our findings provide a general route for fermionic systems to generate non-Fermi liquid behavior, and suggest strongly that by room temperature the doped holes in the cuprates have already formed an emergent Bose liquid of tightly bound pairs, whose low-temperature condensation gives unconventional superconductivity.
A new approach to control single-link flexible arms.
Creators: name: Feliu, Vicente
name: Rattan, Kuldip S.
name: H. Benjamin. Brown
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Abstract: "This report presents a new way to control the tip position of single-link flexible arms when friction is present in the joint. In order to minimize the influence of the nonlinear components of this friction, the control scheme is composed of two nested loops: an inner loop that controls the motor position, and an outer loop that controls the tip position. It is demonstrated that proper design of the inner loop of this control scheme eliminates the effects of friction in controlling the tip position, and may significantly simplify the design of the tip position controller. Three control schemes are proposed for the outer loop. All of them are based on an hybrid feedforward-feedback control scheme. The first and second schemes use only tip position feedback while the third one uses sensing of positions at several points of the beam.Performances of the three schemes are compared under the following disturbances: a) motor position perturbations, b) unmodelled dynamics, and c) changes in the payload. Experimental results are presented for the two arms described in the Part I; the three tip position control schemes are compared in both arms; and, finally, conclusions are drawn."
Instabilities of a family of oblate stellar spheroids
Creators: name: Sellwood, J. A.
name: Valluri, M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have examined the stability of a sequence of oblate elliptical galaxy models having the Stackel form suggested by Kuz'min & Kutuzov. We have employed the 2-integral DFs given by Dejonghe & de Zeeuw for which flattened non-rotating models are characterized by counter-streaming motion and are radially cool; we introduce net rotation in some models by changing the sign of the z-component of angular momentum for a fraction of the particles. We have found that all non-rotating and slowly rotating members of this sequence rounder than E7 are stable, and that even maximally rotating models rounder than E4 are stable. In the absence of strong rotation, the most disruptive instability, and the last to be stabilized by increasing thickness, is a lopsided (m=1) mode. This instability appears to be driven by counter-rotation in radially cool models. Its vigour is lessened as rotation is increased, but it remains strong even in models with net angular momentum 90% of that of a maximally rotating model before finally disappearing in maximally rotating models. Strongly rotating models are more unstable to bar-forming modes which afflict maximally rotating models with c/a >~ 0.5, but this mode is quickly stabilized by moderate fractions of counter-rotating particles. Bending instabilities appear not to be very important; they are detectable in the inner parts of the flatter models, but are less vigorous and more easily stabilized than the lop-sided or bar modes in every case. We briefly discuss the possible relevance of the lop-sided instability to the existence of many lop-sided disk galaxies.
description: 18 pages including 8 figures, TeX, macro file included, to appear in Monthly Notices of RAS
A new approach to control single-link flexible arms.
Creators: name: Feliu, Vicente
name: Rattan, Kuldip S.
name: H. Benjamin. Brown
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Robotics Institute
Light Front Quantization--A Technique for Relativistic and Realistic Nuclear Physics
Creators: name: Miller, Gerald A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Applications of relativistic light front dynamics to computing wave functions of heavy nuclei are reviewed. The motivation for this is the desire to find wave functions, expressed in terms of the plus-momentum variable, that simplify the analyses of high energy experiments such as deep inelastic scattering, Drell-Yan production, (e,e') and (p,p').Some examples of ordinary quantum mechanics are solved to show that the formalism is tractable. Light-front quantization is reviewed briefly and applied to: infinite nuclear matter within the mean field approximation; a simple static source theory; finite nuclei using the mean field approximation; low-energy pion-nucleon scattering using a chiral Lagrangian; nucleon-nucleon scattering, within the one boson exchange approximation; and, infinite nuclear matter including the effects of two-nucleon correlations. Standard good results for nuclear saturation properties are obtained, with a possible improvement in the computed nuclear compressibility. Manifest rotational invariance is not used as an aid in doing calculations, but it does emerge in the results. It seems that nuclear physics can be done in a manner in which modern nuclear dynamics is respected, boost invariance in the $z$-direction is preserved, and in which rotational invariance is maintained. A salient feature is that $ω,σ$ and $π$ mesons are important constituents of nuclei. It seems possible to find Lagrangians that yield reasonable descriptions of nuclear deep inelastic scattering and Drell-Yan reactions. Furthermore, the presence of the $σ$ and $ω$ mesons could provide a nuclear enhancement of the ratio of the cross sections for longitudinally and transversely polarized virtual photons in accord with recent measurements by the HERMES collaboration.
description: Prepared for Prog. Nucl. Part. Phys. 45 (2000)
A combinatorial description of the centralizer algebras connected to the Links-Gould Invariant
Creators: name: Anghel, Cristina Ana-Maria
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16T20, 17B37, 57M25, 57M27, 20F36, 16T05

description: In this paper we study the tensor powers of the standard representation of the quantum super-algebra $U_q(sl(2|1)$, focusing on the rings of its algebra endomorphisms, called centraliser algebras and denoted by $LG_n$. Their dimensions were conjectured by I. Marin and E. Wagner \cite{MW}. We prove this conjecture, describing the intertwiner spaces from a semi-simple decomposition as sets consisting of certain paths in a planar lattice with integer coordinates. Using this model, we present a matrix unit basis for the centraliser algebra $LG_n$, by means of closed curves in the plane, which are included in the lattice with integer coordinates.
description: 27 pages, Added the description of a basis of matrix units for the centraliser algebra LG_n
The Lyman Continuum Polarization Rise in the QSO PG 1222+228
Creators: name: Shields, Gregory A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Some QSOs show an abrupt, strong rise in polarization near rest wavelength 750 A. If this arises in the atmosphere of an accretion disk around a supermassive black hole, it may have diagnostic value. In PG 1222+228, the polarization rise occurs at the wavelength of a sharp drop in flux. We examine and reject interpretations of this feature involving a high velocity outflow. The observations agree with a model involving several intervening Lyman limit systems, two of which happen to coincide with the Lyman continuum polarization rise. After correction for the Lyman limit absorption, the continuum shortward of 912 A is consistent with a typical power-law slope, alpha = -1.8. This violates the apparent pattern for the Lyman limit polarization rises to occur only in ``candidate Lyman edge QSOs''. The corrected, polarized flux rises strongly at the wavelength of the polarization rise, resembling the case of PG 1630+377. The rise in polarized flux places especially stringent requirements on models.
description: 19 pages, including 5 EPS figures. Uses aaspp4.sty. Accepted for publication in Publications of the Astronomical Society of the Pacific, 2000 May