cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Consistency of support vector machines for forecasting the evolution of an unknown ergodic dynamical system from observations with unknown noise
Creators: name: Steinwart, Ingo
name: Anghel, Marian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Methodology (stat.ME)
subject: Dynamical Systems (math.DS)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 62M20 (Primary) 37D25, 37C99, 37M10, 60K99, 62M10, 62M45, 68Q32, 68T05 (Secondary)

description: We consider the problem of forecasting the next (observable) state of an unknown ergodic dynamical system from a noisy observation of the present state. Our main result shows, for example, that support vector machines (SVMs) using Gaussian RBF kernels can learn the best forecaster from a sequence of noisy observations if (a) the unknown observational noise process is bounded and has a summable $α$-mixing rate and (b) the unknown ergodic dynamical system is defined by a Lipschitz continuous function on some compact subset of $\mathbb{R}^d$ and has a summable decay of correlations for Lipschitz continuous functions. In order to prove this result we first establish a general consistency result for SVMs and all stochastic processes that satisfy a mixing notion that is substantially weaker than $α$-mixing.
description: Published in at http://dx.doi.org/10.1214/07-AOS562 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Modeling Longitudinal Dynamics of Comorbidities
Creators: name: Maag, Basil
name: Feuerriegel, Stefan
name: Kraus, Mathias
name: Saar-Tsechansky, Maytal
name: Züger, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In medicine, comorbidities refer to the presence of multiple, co-occurring diseases. Due to their co-occurring nature, the course of one comorbidity is often highly dependent on the course of the other disease and, hence, treatments can have significant spill-over effects. Despite the prevalence of comorbidities among patients, a comprehensive statistical framework for modeling the longitudinal dynamics of comorbidities is missing. In this paper, we propose a probabilistic model for analyzing comorbidity dynamics over time in patients. Specifically, we develop a coupled hidden Markov model with a personalized, non-homogeneous transition mechanism, named Comorbidity-HMM. The specification of our Comorbidity-HMM is informed by clinical research: (1) It accounts for different disease states (i. e., acute, stable) in the disease progression by introducing latent states that are of clinical meaning. (2) It models a coupling among the trajectories from comorbidities to capture co-evolution dynamics. (3) It considers between-patient heterogeneity (e. g., risk factors, treatments) in the transition mechanism. Based on our model, we define a spill-over effect that measures the indirect effect of treatments on patient trajectories through coupling (i. e., through comorbidity co-evolution). We evaluated our proposed Comorbidity-HMM based on 675 health trajectories where we investigate the joint progression of diabetes mellitus and chronic liver disease. Compared to alternative models without coupling, we find that our Comorbidity-HMM achieves a superior fit. Further, we quantify the spill-over effect, that is, to what extent diabetes treatments are associated with a change in the chronic liver disease from an acute to a stable disease state. To this end, our model is of direct relevance for both treatment planning and clinical research in the context of comorbidities.
บทบาททางสรีรวิทยาของสารรบกวนการทำงานของฮอร์โมนอีควอลและผลกระทบต่อสุขภาพ
Creators: name: มัลลิกา สระศรี
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ไอโซฟลาโวนในถั่วเหลือง, ฤทธิ์คล้ายฮอร์โมนเอสโตรเจน, ฤทธิ์ต้านฮอร์โมนเอสโตรเจน, ฤทธิ์ต้านฮอร์โมนแอนโดรเจน, ฤทธิ์ต้านอนุมูลอิสระ, มะเร็งที่เกี่ยวเนื่องกับฮอร์โมนเพศ, โรคหลอดเลือดหัวใจ

description: 1, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Fehlerquellen der Ertragsermittlung beim Mähdrusch
Creators: name: Griepentrog, Hans-Werner
Publisher: name: LANDTECHNIK
Year: 1998

description: Die Ertragskartierung bildet einen wichtigen Baustein zur Datenerfassung im Rahmen der teilflächenspezifischen Pflanzenproduktion. Trotz bereits langjähriger Erprobung ist die Datenerfassung und Anlage von Ertragskarten nach wie vor nicht einfach. Bevor Ertragsrohdaten für die Kartierung herangezogen werden, sollten diese kritisch betrachtet und einer Fehleranalyse unterzogen werden. Der Korndurchsatzsensor ist zwar ein wichtiges Messgerät, er liefert jedoch nur eine Messgröße. Weitere wichtige Parameter zur Ertragsberechnung müssen herangezogen werden. Zur Reduzierung der Fehlerwahrscheinlichkeit sind auch konstruktive Besonderheiten der Sensorinstallation zu beachten. Zu unterscheiden sind Fehler der Massenbilanzierung mit beispielsweise Korntankladungen und Fehler der dargestellten Einzelerträge in Ertragskarten Die Massenerfassung kann mit Fehlern von 2 % erfolgen, während Ertragskarten mit Fehlern um 10 % behaftet sind.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
Mähdrescherreinigung
Creators: name: Zhao, Yuanguo
name: Beck, Folker
name: Kutzbach, Heinz Dieter
Publisher: name: LANDTECHNIK
Year: 1998

description: Durch die hohe Belastung der Reinigungsanlage mit Nicht-Korn-Bestandteilen NKB im modernen Mähdrescher muss die Luftströmung unter dem Obersieb verbessert werden. Es wurden deshalb Untersuchungen zur Optimierung der Luftströmung durchgeführt. Dabei wurden Luftdurchsatz und -verteilung variiert. Eine fallende Luftverteilung hat sich wie auch in früheren Arbeiten bei hohen Gutdurchsätzen als wichtig herausgestellt. Auch muss der Luftdurchsatz an den Gutdurchsatz angepasst werden. ln dieser Arbeit wird die optimale Luftverteilung unter dem Obersieb bei hohen Gutdurchsätzen vorgestellt.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
The Structure of the Oscillon: The Dynamics of Attractive Self-Interaction
Creators: name: Cyncynates, David
name: Giurgica-Tiron, Tudor
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Real scalar fields with attractive self-interaction may form self-bound states, called oscillons. These dense objects are ubiquitous in leading theories of dark matter and inflation; of particular interest are long-lived oscillons which survive past $14$ Gyr, offering dramatic astrophysical signatures into the present day. We introduce a new formalism for computing the properties of oscillons with improved accuracy, which we apply to study the internal structure of oscillons and to identify the physical mechanisms responsible for oscillon longevity. In particular, we show how imposing realistic boundary conditions naturally selects a near-minimally radiating solution, and how oscillon longevity arises from its geometry. Further, we introduce a natural vocabulary for the issue of oscillon stability, which we use to predict new features in oscillon evolution. This framework allows for new efficient algorithms, which we use to address questions of whether and to what extent long-lived oscillons are fine-tuned. Finally, we construct a family of potentials supporting ultra-long-lived oscillons, with lifetimes in excess of $10^{17}$ years.
description: 33 pages, 23 figures
Einstein vs Maxwell: Is gravitation a curvature of space, a field in flat space, or both?
Creators: name: Nieuwenhuizen, Theo M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Starting with a field theoretic approach in Minkowski space, the gravitational energy momentum tensor is derived from the Einstein equations in a straightforward manner. This allows to present them as {\it acceleration tensor} = const. $\times$ {\it total energy momentum tensor}. For flat space cosmology the gravitational energy is negative and cancels the material energy. In the relativistic theory of gravitation a bimetric coupling between the Riemann and Minkowski metrics breaks general coordinate invariance. The case of a positive cosmological constant is considered. A singularity free version of the Schwarzschild black hole is solved analytically. In the interior the components of the metric tensor quickly die out, but do not change sign, leaving the role of time as usual. For cosmology the $Λ$CDM model is covered, while there appears a form of inflation at early times. Here both the total energy and the zero point energy vanish.
description: 5 pages, 1 figure
Additional file 7 of Transcriptome analysis reveals major transcriptional changes during regrowth after mowing of red clover (Trifolium pratense)
Creators: name: Herbert, Denise Brigitte
name: Gross, Thomas
name: Rupp, Oliver
name: Becker, Annette
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 7: Table S1. Overview of the sampling locations for the plant material. Names of the fields belonging to the Biodiversity Exploratory or greenhouse populations are shown. As well as the location, coordinates and conditions (mown/cut and not mown/uncut). Table S3. Sources and basis for description and classification of the top 20 DEG. Table S4. Number of reads for each sequenced library (transcriptome ID) before and after trimming. Table S5. General features of the transcriptome of T. pratense. Table S6. Overall alignment rate of the single transcriptomes to the references transcriptome, values above 80% are good. Table S7. Annotation of T. pratense plant-specific against different databases. Table S8. Quality of the replicates. For each library replicate the number of transcripts above TPM of 1 is shown. Further the number of transcripts shared between to related replica is shown, as well as the number of transcripts unique for a replica. The similarity of the replicas was evaluated by calculating he percentage of the shared transcripts compared to the total number of transcripts of a replica. Table S10. Main classes based on the DE contigs. 16 main classes were developed to group the DE contigs. Table S11. GO Terms specifically enriched in the individual transcriptomes. Table S12. Shared contigs with corresponding annotation. Table S13. Detailed information about transcripts described during the discussion part. Table S14. Primer sequences.
The Development of Material Ordering Plan in a Case study Hard Disk Drive Manufacturing
Creators: name: Sornnatorn Kriphinyamas
name: Athakorn Kengpol
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2013
Subjects: Material ordering plan,Wagner-Whitin algorithm,Activity Based Costing classification methodology

description: 3, 40, KKU Engineering Journal
Reinigungsorgane in Zuckerrübenrodern
Creators: name: Degen, Peter
name: Kromer, Karl- Hans
Publisher: name: LANDTECHNIK
Year: 1998

description: Ein hoher Trenngrad von Fremdbestandteilen in Rodern und Reinigungsladern ist ein wichtiges Konstruktionsziel, damit unerwünschte Beimengungen auf dem Feld verbleiben. Die verwendeten Reinigungssysteme bestehen aus Kombinationen unterschiedlich wirkender Trenn und Lösewerkzeuge. Für eine konstruktionsmethodische Vorgehensweise werden die technischen Einrichtungen systematisiert.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
Quantum Nash Equilibria and Quantum Computing
Creators: name: Fellman, Philip V.
name: Post, Jonathan Vos
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Finance (q-fin.GN)
subject: Computational Physics (physics.comp-ph)
subject: Physics and Society (physics.soc-ph)
subject: Computational Finance (q-fin.CP)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: In this paper we review our earlier work on quantum computing and the Nash Equilibrium, in particular, tracing the history of the discovery of new Nash Equilibria and then reviewing the ways in which quantum computing may be expected to generate new classes of Nash equilibria. We then extend this work through a substantive analysis of examples provided by Meyer, Flitney, Iqbal and Weigert and Cheon and Tsutsui with respect to quantized games, quantum game strategies and the extension of Nash Equilibrium to solvable games in Hilbert space. Finally, we review earlier work by Sato, Taiji and Ikegami on non-linear computation and computational classes by way of reference to coherence, decoherence and quantum computating systems.
description: 18 Pages, 6th International Conference on Complex Systems. Available from http://necsi.org/events/iccs6/papers/12dc335ba096f7ee3cf094c55489.pdf
Bodenschonende Kraft- und Leistungsübertragung
Creators: name: Krieger, Jörg
name: Sommer, Claus
Publisher: name: LANDTECHNIK
Year: 1998

description: An die Kraft- und Leistungsübertragung über das Triebrad des Traktors werden zunehmende Anforderungen gestellt. Die Radlasten steigen an und bei empfindlichen Bodenzuständen sind Bodenschadverdichtungen möglich. Deshalb benötigt der Landwirt im Sinne der Produktionsfunktion seiner Ackerstandorte wie auch im Sinne des Bundesbodenschutzgesetzes entsprechende Entscheidungshilfen. Im Mittelpunkt eines DFG-Verbundvorhabens stehen Feldversuche mit Einzelradmessvorrichtungen von 2 bis 6 t Radlast, in denen Standard-, Breit- und Terrareifen sowie Gummibandlaufwerke unter Einbeziehung betriebstechnischer und bodenphysikalischer Aspekte untersucht werden. Erste Ergebnisse zeigen, dass auf Stoppelacker der Breitreifen höhere Laufwerkwirkungsgrade als der Standardreifen realisieren und maximal mögliche Reifeninnendruckabsenkung den Bodendruck vermindern lässt.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
Reinforcement Learning-based Dynamic Service Placement in Vehicular Networks
Creators: name: Talpur, Anum
name: Gurusamy, Mohan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The emergence of technologies such as 5G and mobile edge computing has enabled provisioning of different types of services with different resource and service requirements to the vehicles in a vehicular network.The growing complexity of traffic mobility patterns and dynamics in the requests for different types of services has made service placement a challenging task. A typical static placement solution is not effective as it does not consider the traffic mobility and service dynamics. In this paper, we propose a reinforcement learning-based dynamic (RL-Dynamic) service placement framework to find the optimal placement of services at the edge servers while considering the vehicle's mobility and dynamics in the requests for different types of services. We use SUMO and MATLAB to carry out simulation experiments. In our learning framework, for the decision module, we consider two alternative objective functions-minimizing delay and minimizing edge server utilization. We developed an ILP based problem formulation for the two objective functions. The experimental results show that 1) compared to static service placement, RL-based dynamic service placement achieves fair utilization of edge server resources and low service delay, and 2) compared to delay-optimized placement, server utilization optimized placement utilizes resources more effectively, achieving higher fairness with lower edge-server utilization.
description: Accepted and presented in IEEE 93rd Vehicular Technology Conference VTC2021-Spring
Optimum conditions of activated carbon production from Mimosa pigra L. using sodium chloride and zing chloride activation
Creators: name: Theethawat Singhasiri
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2014
Subjects: Activated carbon production,Mimosa pigra Linn,Activation,Optiimum condition

description: 4, 41, KKU Engineering Journal
Additional file 1 of Lessons learned from a randomized controlled trial on a home delivered meal service in advanced cancer patients undergoing chemotherapy: a pilot study
Creators: name: IJmker-Hemink, Vera
name: Lize, Nora
name: Beijer, Sandra
name: Raijmakers, Natasja
name: Wanten, Geert
name: Berg, Manon Van Den
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 1. Semi-structured topic list.
Excited state quantum phase transitions in many-body systems
Creators: name: Caprio, M. A.
name: Cejnar, P.
name: Iachello, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Phenomena analogous to ground state quantum phase transitions have recently been noted to occur among states throughout the excitation spectra of certain many-body models. These excited state phase transitions are manifested as simultaneous singularities in the eigenvalue spectrum (including the gap or level density), order parameters, and wave function properties. In this article, the characteristics of excited state quantum phase transitions are investigated. The finite-size scaling behavior is determined at the mean field level. It is found that excited state quantum phase transitions are universal to two-level bosonic and fermionic models with pairing interactions.
description: LaTeX (elsart), 37 pages; to be published in Ann. Phys. (N.Y.)
Additional file 2 of Humoral responses to SARS-CoV-2 by healthy and sick dogs during the COVID-19 pandemic in Spain
Creators: name: Perisé-Barrios, Ana Judith
name: Tomeo-Martín, Beatriz Davinia
name: Gómez-Ochoa, Pablo
name: Delgado-Bonet, Pablo
name: Plaza, Pedro
name: Palau-Concejo, Paula
name: González, Jorge
name: Ortiz-Díez, Gustavo
name: Meléndez-Lazo, Antonio
name: Gentil, Michaela
name: García-Castro, Javier
name: Barbero-Fernández, Alicia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: Computational Biology

description: Additional file 2. Immune response of sick and healthy dogs.
Mechanische Unkrautregulierung in der Pflanzenreihe
Creators: name: Klausmann, Martin
name: Baumert, Anja
name: Müller, Joachim
name: Köller, Karlheinz
Publisher: name: LANDTECHNIK
Year: 1998

description: Nach der Umsetzung der EU-Richtlinie 91/414 sind Indikationslücken entstanden, die zu einer Erschwernis der chemischen Unkrautregulierung in Sonderkulturen wie zum Beispiel dem Heilpflanzenanbau führten [1]. Die mechanische Unkrautregulierung stellt in solchen Bereichen eine Alternative zur chemischen Bekämpfung dar. Am Institut wurde das bekannte Prinzip der Fingerhacke [2[ der Firma Kress und deren Vorläufer [3] aus den USA weiterentwickelt. Der gebaute Prototyp beseitigt auch in der Reihe stehendes Unkraut effektiv.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
Additional file 1 of Humoral responses to SARS-CoV-2 by healthy and sick dogs during the COVID-19 pandemic in Spain
Creators: name: Perisé-Barrios, Ana Judith
name: Tomeo-Martín, Beatriz Davinia
name: Gómez-Ochoa, Pablo
name: Delgado-Bonet, Pablo
name: Plaza, Pedro
name: Palau-Concejo, Paula
name: González, Jorge
name: Ortiz-Díez, Gustavo
name: Meléndez-Lazo, Antonio
name: Gentil, Michaela
name: García-Castro, Javier
name: Barbero-Fernández, Alicia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. Vaccination status from sick and healthy dogs.
Searching for Extragalactic Exoplanetary Systems: the Curious Case of BD+20 2457
Creators: name: Perottoni, Hélio D.
name: Amarante, João A. S.
name: Limberg, Guilherme
name: Rocha-Pinto, Helio J.
name: Rossi, Silvia
name: Anders, Friedrich
name: Borbolato, Lais
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Planets and their host stars carry a long-term memory of their origin in their chemical compositions. Thus, identifying planets formed in different environments improves our understating of planetary formation. Although restricted to detecting exoplanets within the solar vicinity, we might be able to detect planetary systems that formed in small external galaxies and later merged with the Milky Way. In fact, Gaia data have unequivocally shown that the Galaxy underwent several significant minor mergers during its first billion years of formation. The stellar debris of one of these mergers, Gaia-Enceladus (GE), is thought to have built up most of the stellar halo in the solar neighborhood. In this Letter, we investigate the origin of known planet-host stars combining data from the NASA Exoplanet Archive with Gaia EDR3 and large-scale spectroscopic surveys. We adopt a kinematic criterion and identify 42 stars associated with the Milky Way's thick disk and one halo star. The only halo star identified, BD+20 2457, known to harbor two exoplanets, moves on a retrograde and highly eccentric orbit. Its chemical abundance pattern situates the star at the border between the thick disk, the old halo, and accreted populations. Given its orbital parameters and chemical properties, we suggest that BD+20 2457 is likely formed in the protodisk of the Galaxy, but we do not exclude the possibility of the star belonging to the debris of GE. Finally, we estimate a minimum age and mass limit for the star, which has implications for its planetary system and will be tested with future Transiting Exoplanet Survey Satellite observations.
description: Accepted for ApJL. Minor typos fixed and references updated to match published version
Zerkleinerung von Kartoffeln zur Stärkegewinnung
Creators: name: Heinrich, Andre
name: Belter, Adolf
name: Firus, Siegfried
Publisher: name: LANDTECHNIK
Year: 1998

description: Für die Gewinnung technischer Kartoffelstärke während der Ernte wird eine leistungsfähige Zerkleinerungseinrichtung für rohe Kartoffeln benötigt. Der mechanische Aufschluss soll soweit erfolgen, dass zunächst ein Optimum in der Abtrennung des Fruchtwassers erreicht wird. Stichprobenartige Untersuchungen ergaben, dass die in der Lebensmittelherstellung und in der Kartoffelstärkeindustrie verwendeten Zerkleinerer im ersten Fall nicht weit genug auflösen und im zweiten Fall die spezifische Leistungsfähigkeit für den mobilen Prozess nicht ausreicht. Deshalb wurde eine zweistufige Zerkleinerung mit Cracker und Mahlwalze getestet. Der erreichbare Zerkleinerungsgrad ermöglicht eine Abscheidung des Fruchtwassers durch eine universelle Schneckenzentrifuge mit Feststoffgehalten von mindestens 45 %.
description: LANDTECHNIK, Bd. 53 Nr. 5 (1998)
Projective Coordinates and Projective Space Limit
Creators: name: Hatsuda, Machiko
name: Kamimura, Kiyoshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The "projective lightcone limit" has been proposed as an alternative holographic dual of an AdS space. It is a new type of group contraction for a coset G/H preserving the isometry group G but changing H. In contrast to the usual group contraction, which changes G preserving the spacetime dimension, it reduces the dimensions of the spacetime on which G is realized. The obtained space is a projective space on which the isometry is realized as a linear fractional transformation. We generalize and apply this limiting procedure to the "Hopf reduction" and obtain (n-1)-dimensional complex projective space from (2n-1)-dimensional sphere preserving SU(n) symmetry.
description: 16 pages, v2: modified the section 2.1 clarifying the difference from IW contraction, added notes & references, version to appear in Nuclear Physics B
Interpolating and sampling sequences in finite Riemann surfaces
Creators: name: Ortega-Cerda, Joaquim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We provide a description of the interpolating and sampling sequences on a space of holomorphic functions with a uniform growth restriction defined on finite Riemann surfaces.
Determinanten der Arbeitsqualität bei der Frühjahrsaussaat in Lohnarbeitsbetrieben
Creators: name: Ackermann, Lngo
name: Thomas, Jens
Publisher: name: LANDTECHNIK
Year: 1998

description: Mit dem Ziel, die Arbeitsbelastung sowie die Präzision der Fahrspurführung unter Praxisbedingungen zu untersuchen, wurden in der Frühjahrsaussaat des Jahres 1997 orientierende Untersuchungen in ostdeutschen Lohnarbeitsbetrieben durchgeführt. Als Ergebnis konnten signifikante Unterschiede der Fahrspurabstände auf den Maisflächen nachgewiesen werden. Die Analyse der Messdaten zeigt, dass die Faktoren Fahrer und Arbeitsbreite der Sämaschine einen gesicherten Einfluss auf das Arbeitsergebnis ausüben. Technik, die den Fahrer bei der Einhaltung eines vorgewählten Reihenabstandes unterstützt, kann zu einer Verbesserung der Arbeitsqualität und zur Entlastung des Fahrers beitragen.
description: LANDTECHNIK, Bd. 53 Nr. 4 (1998)
Impact of independent instruction on the achievement scores of slow learner students
Creators: name: Purdy, Gerald Albert
Publisher: name: University of British Columbia
Year: 2010

description: This study compared the effectiveness of independent lesson reviews with teacher-directed lesson reviews using the same content material. Student improvement was measured by improvement of the mean scores of the students, as determined by their performance on teacher-made tests. The students taking part in the study were grade nine vocational students at W.J. Fenton Secondary School in The Peel Board of Education. The students were tested on their ability to recall names of equipment, on their comprehension of a scientific phenomenon and on their ability to apply a mathematical formula to quantify experimental results. The predicted superior performance of the independent study technique was not confirmed. The students in the teacher-directed reviews performed equally well or better than the students using independent study techniques. However, during the study there was overall improvement in the scores of both groups of students indicating that the teaching strategies applied for this study were effective in assisting the students to improve their subject mastery. Based on these findings it was concluded that independent study strategies are not superior to teacher-directed review methods for students who have learning disabilities but they do have some value in instructional situations where independent study methods must be used.
Fault-tolerant linear optical quantum computing with small-amplitude coherent states
Creators: name: Lund, A. P.
name: Ralph, T. C.
name: Haselgrove, H. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computing using two optical coherent states as qubit basis states has been suggested as an interesting alternative to single photon optical quantum computing with lower physical resource overheads. These proposals have been questioned as a practical way of performing quantum computing in the short term due to the requirement of generating fragile diagonal states with large coherent amplitudes. Here we show that by using a fault-tolerant error correction scheme, one need only use relatively small coherent state amplitudes ($α> 1.2$) to achieve universal quantum computing. We study the effects of small coherent state amplitude and photon loss on fault tolerance within the error correction scheme using a Monte Carlo simulation and show the quantity of resources used for the first level of encoding is orders of magnitude lower than the best known single photon scheme. %We study this reigem using a Monte Carlo simulation and incorporate %the effects of photon loss in this simulation.
New algebraic aspects of perturbative and non-perturbative Quantum Field Theory
Creators: name: Bergbauer, Christoph
name: Kreimer, Dirk
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this expository article we review recent advances in our understanding of the combinatorial and algebraic structure of perturbation theory in terms of Feynman graphs, and Dyson-Schwinger equations. Starting from Lie and Hopf algebras of Feynman graphs, perturbative renormalization is rephrased algebraically. The Hochschild cohomology of these Hopf algebras leads the way to Slavnov-Taylor identities and Dyson-Schwinger equations. We discuss recent progress in solving simple Dyson-Schwinger equations in the high energy sector using the algebraic machinery. Finally there is a short account on a relation to algebraic geometry and number theory: understanding Feynman integrals as periods of mixed (Tate) motives.
description: 15 pages, Contribution to the Proceedings of the ICMP 2006, 2 typos corrected, final version
What's the matter at RHIC?
Creators: name: de Cassagnac, Raphael Granier
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: I present here a concise review of the experimental results obtained at the Relativistic Heavy Ion Collider (RHIC), which shed light on the hot and dense quark gluon matter produced at these high temperature and density conditions.
description: 14 pages, 8 figures, talk given at the CTP 2007 Symposiun on Sypersymmetry at LHC, Cairo, March 2007. Proceedings to appear in the International Journal of Modern Physics A. (Improve references and add minor comments)
Many-body interband tunneling as a witness for complex dynamics in the Bose-Hubbard model
Creators: name: Tomadin, Andrea
name: Mannella, Riccardo
name: Wimberger, Sandro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A perturbative model is studied for the tunneling of many-particle states from the ground band to the first excited energy band, mimicking Landau-Zener decay for ultracold, spinless atoms in quasi-one dimensional optical lattices subjected to a tunable tilting force. The distributions of the computed tunneling rates provide an independent and experimentally accessible signature of the regular-chaotic transition in the strongly correlated many-body dynamics of the ground band.
description: 4 pages, 3 figures
Static vs. Dynamic Guided-Endodontic Access: Work-Flow Assessment for Post-Graduate Training
Creators: name: Elsherif, Ayat
Publisher: name: University of Illinois at Chicago
Year: 2024

description: The purpose of this literature review and case report is to examine the feasibility of using static versus dynamic guided endodontic access approaches for post-graduate training in academic settings. The advent of guided access systems or methodologies has signified improved efficacy and precision in endodontic therapy. Nevertheless, choosing between static and dynamic guided techniques poses significant challenges concerning their effectiveness, applicability, and educational significance. By analyzing the existing literature, the aim of this review is to offer insights and perspectives into the comparative benefits and limitations of static and dynamic guidance systems; thus, facilitating well-informed decision-making in post-graduate dental training or education programs. Two clinical cases are presented to compare the workflow of both approaches.
Both static and dynamic guided endodontic access procedures provide immense benefits and disadvantages for post-graduate endodontic training. The static procedure allows the development of basic anatomical knowledge and tactile feedback. The dynamic guided access, on the other hand, fosters accuracy, efficacy, and potentially swift acquisition of skill. Although guided endodontic access techniques are more time consuming compared to the conventional freehand technique, both DGE and SGE are more accurate and conservative of dentin structure.
Additional file 1 of What are the risk factors for avoidable transitions in the last year of life? A qualitative exploration of professionals’ perspectives for improving care in Germany
Creators: name: Kasdorf, Alina
name: Dust, Gloria
name: Vennedey, Vera
name: Rietz, Christian
name: Polidori, Maria C.
name: Voltz, Raymond
name: Strupp, Julia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Additional file 1: Supplemental file 1. Focus group/ interview guideline.
Expected Anomalies in the Fossil Record
Creators: name: Fischer, Mareike
name: Steel, Mike
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The problem of intermediates in the fossil record has been frequently discussed ever since Darwin. The extent of `gaps' (missing transitional stages) has been used to argue against gradual evolution from a common ancestor. Traditionally, gaps have often been explained by the improbability of fossilization and the discontinuous selection of found fossils. Here we take an analytical approach and demonstrate why, under certain sampling conditions, we may not expect intermediates to be found. Using a simple null model, we show mathematically that the question of whether a taxon sampled from some time in the past is likely to be morphologically intermediate to other samples (dated earlier and later) depends on the shape and dimensions of the underlying phylogenetic tree that connects the taxa, and the times from which the fossils are sampled.
Performance evaluation and comparison of a token ring network with full latency stations and dual latency stations
Creators: name: Lo, Edward Chi Lup
Publisher: name: University of British Columbia
Year: 2010

description: A method of performance improvement of token ring networks is presented, based on the use of stations with two latency states. Station latency is defined as the time delay introduced in passing data through a station. Most token ring protocol standards (e.g. IEEE 802.5 or ANSI X3T9.5) require incoming data to be decoded and encoded in the station before transmission onto the ring. These encoding and decoding operations add significantly to the station latency. The bypassing of the encoding and decoding steps is proposed, which improves the mean message waiting time. A detailed evaluation and comparison of the networks is based on both analytical and simulation results. The performance of identical stations and symmetric traffic is obtained analytically. A discrete event simulation model for a token ring network is written in GPSS for general traffic. Results show a significant reduction in mean waiting time for the dual latency ring, with performance approaching or exceeding that of gated and exhaustive service, for certain ranges of network utilization.
Data Acquisition for Improving Machine Learning Models
Creators: name: Li, Yifan
name: Yu, Xiaohui
name: Koudas, Nick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: E.5

description: The vast advances in Machine Learning over the last ten years have been powered by the availability of suitably prepared data for training purposes. The future of ML-enabled enterprise hinges on data. As such, there is already a vibrant market offering data annotation services to tailor sophisticated ML models. In this paper, we present research on the practical problem of obtaining data in order to improve the accuracy of ML models. We consider an environment in which consumers query for data to enhance the accuracy of their models and data providers who possess data make them available for training purposes. We first formalize this interaction process laying out the suitable framework and associated parameters for data exchange. We then propose two data acquisition strategies that consider a trade-off between exploration during which we obtain data to learn about the distribution of a provider's data and exploitation during which we optimize our data inquiries utilizing the gained knowledge. In the first strategy, Estimation and Allocation, we utilize queries to estimate the utilities of various predicates while learning about the distribution of the provider's data; then we proceed to the allocation stage in which we utilize those learned utility estimates to inform our data acquisition decisions. The second algorithmic proposal, named Sequential Predicate Selection, utilizes a sampling strategy to explore the distribution of the provider's data, adaptively investing more resources to parts of the data space that are statistically more promising to improve overall model accuracy. We present a detailed experimental evaluation of our proposals utilizing a variety of ML models and associated real data sets exploring all applicable parameters of interest. We identify trade-offs and highlight the relative benefits of each algorithm to further optimize model accuracy.
description: Accepted by VLDB 2021
Additional file 1 of Developmental fates of shark head cavities reveal mesodermal contributions to tendon progenitor cells in extraocular muscles
Creators: name: Kuroda, Shunya
name: Adachi, Noritaka
name: Kusakabe, Rie
name: Kuratani, Shigeru
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1.
Target mass corrections and twist-3 in the nucleon spin structure functions
Creators: name: Dong, Y. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Nachtmann moment is employed to study the contribution of twist-3 operator to the nucleon spin structure functions. Target mass corrections to the Cornwall-Norton moments of the spin structure functions $g_{1,2}$ are discussed. It is found that the corrections play a sizeable role to the contribution of the twist-3 $\tilde d_2$ extracted from the Cornwall-Norton moments.
description: 11 pages, 1 figures
Manual training of mental rotation performance: Visual representation of rotating figures is the main driver for improvements
Creators: name: Jost, Leonardo
name: Jansen, Petra
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: Mental rotation, visual rotation, manual rotation, common processing
subject: 796 Sport

description: Studies have demonstrated that manual and mental rotation show common processes. Training studies have shown that a manual and concurrent visual rotation improves mental rotation performance. In this study, we separated the visual rotation from the manual rotation. In all, 121 participants were randomly assigned to visual training, manual rotation training, or manual training without rotational movement. Before and after the training session of 30 min, they had to solve a chronometric mental rotation test. Data were analysed with linear mixed models and showed an improvement in mental rotation performance for all groups. However, this improvement did not differ between groups. Due to the independence of the form and occurrence of the manual activity, this suggests that it is not the motor activity, but the concurrent visual rotation that leads to improvements in mental rotation tasks. Therefore, the visual component in mental rotation tasks has to be investigated in more detail.
The Determination of the Helicity of $W'$ Boson Couplings at the LHC
Creators: name: Rizzo, Thomas G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Apart from its mass and width, the most important property of a new charged gauge boson, $W'$, is the helicity of its couplings to the SM fermions. Such particles are expected to exist in many extensions of the Standard Model. In this paper we explore the capability of the LHC to determine the $W'$ coupling helicity at low integrated luminosities in the $\ell +E_T^{miss}$ discovery channel. We find that measurements of the transverse mass distribution, reconstructed from this final state in the $W-W'$ interference region, provides the best determination of this quantity. To make such measurements requires integrated luminosities of $\sim 10(60) fb^{-1}$ assuming $M_{W'}=1.5(2.5)$ TeV and provided that the $W'$ couplings have Standard Model magnitude. This helicity determination can be further strengthened by the use of various discovery channel leptonic asymmetries, also measured in the same interference regime, but with higher integrated luminosities.
description: 29 pages, 11 figures; discussion and reference added, typos corrected
UZUM YETISHTIRISHDA O'STIRUVCHI MODDALARDAN FOYDALANISH
Creators: name: Yusupov, Ohunjon
name: Xayrullayeva, Sarvinoz
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada olib borilgan tadqiqot natijalari, uzum navlariga o‘sishni boshqaruvchi moddalarni qo‘llash muddati va meyyori o‘zgarishini bilan ularning uzum boshi, mexanik va sharbatini kimyoviy tarkibining ijobiy o‘zgarish ko‘rsatgichlari hamda eng maqbul qo‘llanish meyori yani samaradorlik yuqori bo‘lgan variyantlar to‘g‘risida ma'lumotlar keltirilgan.
Tunable High-Q Resonator by General Impedance Converter
Creators: name: Mifune, T.
name: Mishonov, T. M.
name: Serafimov, N. S.
name: Dimitrova, I. M.
name: Popeski-Dimovski, R.
name: Velkoska, L.
name: Petkov, E. G.
name: Varonov, A. M.
name: Barone, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: For the need of measurements focused in condensed matter physics and especially Bernoulli effect in superconductors we have developed an active resonator with dual operational amplifiers. A tunable high-Q resonator is performed in the schematics of the the General Impedance Converter (GIC). In the framework of frequency dependent open-loop gain of operational amplifiers, a general formula of the frequency dependence of the impedance of GIC is derived. The explicit formulas for the resonance frequency and Q-factor include as immanent parameter the crossover frequency of the operational amplifier. Voltage measurements of GIC with a lock-in amplifier perfectly agree with the derived formulas. A table reveals that electrometer operational amplifiers are the best choice to build the described resonator.
description: a new formulae for the Q-factor expressed by resonance frequency, dominant frequency and cross-over frequency, a general guide with a table for selection of appropriate operational amplifiers, 9 new (30 total) references, Fig. 6 in appendix B corrected
Strong Field Ionization of Water II: Electronic and Nuclear Dynamics En Route to Double Ionization
Creators: name: Cheng, Chuan
name: Streeter, Zachary L.
name: Howard, Andrew J.
name: Spanner, Michael
name: Lucchese, Robert R.
name: McCurdy, C. William
name: Weinacht, Thomas
name: Bucksbaum, Philip H.
name: Forbes, Ruaridh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the role of nuclear motion and strong-field-induced electronic couplings during the double ionization of deuterated water using momentum-resolved coincidence spectroscopy. By examining the three-body dicationic dissociation channel, D$^{+}$/D$^{+}$/O, for both few- and multi-cycle laser pulses, strong evidence for intra-pulse dynamics is observed. The extracted angle- and energy-resolved double ionization yields are compared to classical trajectory simulations of the dissociation dynamics occurring from different electronic states of the dication. In contrast with measurements of single photon double ionization, pronounced departure from the expectations for vertical ionization is observed, even for pulses as short as 10~fs in duration. We outline numerous mechanisms by which the strong laser field can modify the nuclear wavefunction en-route to final states of the dication where molecular fragmentation occurs. Specifically, we consider the possibility of a coordinate-dependence to the strong-field ionization rate, intermediate nuclear motion in monocation states prior to double ionization, and near-resonant laser-induced dipole couplings in the ion. These results highlight the fact that, for small and light molecules such as D$_2$O, a vertical-transition treatment of the ionization dynamics is not sufficient to reproduce the features seen experimentally in the strong field coincidence double-ionization data.
description: 14 pages, 13 figures
Curvature flows in semi-Riemannian manifolds
Creators: name: Gerhardt, Claus
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35J60, 53C21, 53C44, 53C50, 58J05

description: We prove that the limit hypersurfaces of converging curvature flows are stable, if the initial velocity has a weak sign, and give a survey of the existence and regularity results.
description: 48 pages, v4: minor typos corrected, this version will be published
Additional file 1 of Variation in chemical composition and antimalarial activities of two samples of Terminalia albida collected from separate sites in Guinea
Creators: name: Camara, Aissata
name: Haddad, Mohamed
name: Traore, Mohamed Sahar
name: Chapeland-Leclerc, Florence
name: Ruprich-Robert, Gwenaël
name: Fourasté, Isabelle
name: Balde, Mamadou Aliou
name: Royo, Jade
name: Parny, Melissa
name: Batigne, Philippe
name: Salon, Marie
name: Coste, Agnès
name: Aliou Mamadou Balde
name: Aubouy, Agnès
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1:.