cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Automatic self-contained calibration of an industrial dual-arm robot with cameras using self-contact, planar constraints, and self-observation
Creators: name: Stepanova, Karla
name: Rozlivek, Jakub
name: Puciow, Frantisek
name: Krsek, Pavel
name: Pajdla, Tomas
name: Hoffmann, Matej
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present a robot kinematic calibration method that combines complementary calibration approaches: self-contact, planar constraints, and self-observation. We analyze the estimation of the end effector parameters, joint offsets of the manipulators, and calibration of the complete kinematic chain (DH parameters). The results are compared with ground truth measurements provided by a laser tracker. Our main findings are: (1) When applying the complementary calibration approaches in isolation, the self-contact approach yields the best and most stable results. (2) All combinations of more than one approach were always superior to using any single approach in terms of calibration errors and the observability of the estimated parameters. Combining more approaches delivers robot parameters that better generalize to the workspace parts not used for the calibration. (3) Sequential calibration, i.e. calibrating cameras first and then robot kinematics, is more effective than simultaneous calibration of all parameters. In real experiments, we employ two industrial manipulators mounted on a common base. The manipulators are equipped with force/torque sensors at their wrists, with two cameras attached to the robot base, and with special end effectors with fiducial markers. We collect a new comprehensive dataset for robot kinematic calibration and make it publicly available. The dataset and its analysis provide quantitative and qualitative insights that go beyond the specific manipulators used in this work and apply to self-contained robot kinematic calibration in general.
description: 25 pages, 29 figures
title: Exploring Recent Phenomena in Entrepreneurial Finance
Creators: name: Hackober, Christian
Publisher: name: UNSPECIFIED
Year: 2021

description: This dissertation consists of three essays that address important and very recent issues in the field of entrepreneurial finance. The first essay, examines the reasons that drive recently emerging multibillion-dollar valuation levels of so-called ‘unicorns’. The second essay, investigates the current status of collaborations between incumbent firms and ventures in order to cope with the ongoing digital transformation. Based on empirical findings, this dissertation develops a collaboration model between incumbents and ventures depending on the venture’s development stage. The third essay, draws from Initial Coin Offering (ICO) data to explore how early stage investors influence the outcomes of ICOs and the overall survival rate of blockchain technology-based firms. This dissertation contributes to the research on entrepreneurial finance and entrepreneurship and more specifically to the understanding on recent phenomena concerning the influence of investors’ characteristics on finance decisions and collaborations and subsequently their influence on ventures’ success. First, it is presented that being founded within a cluster region and in particular within the Silicon Valley area, increases significantly the chances for ventures to achieve ultra-high valuation levels. Furthermore, the results show empirically that a considerable share of ultra-high valuation levels is devoted to aggressive and inorganic growth strategies in order to gain large market shares rapidly and achieve a market-dominating role. Thereby, it is found that corporate investors play a decisive role for ventures to become successful. Second, this dissertation provides evidence from the German market that corporate investments are mainly driven by the ambition of incumbents to gain momentum within the digital transformation of existing business models. However, based on the empirical findings, the trend is identified that incumbents collaborate increasingly with more nascent ventures and apply non-equity-based approaches. Third, it is demonstrated that the beneficial influences of venture capital investors hold also in the context of the blockchain technology. Particularly, evidence is provided that the specialization and the reputation of investors has a positive influence on the success probability of blockchain technology-based firms. Thereby, it is show again the dispositive role of corporate investors. Each essay, discusses the theoretical and practical contributions and provides novel insights on recent phenomena in the area of entrepreneurial finance.
Hubendickia siamensis Brandt 1968
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Hydrobiidae
Hubendickia
Hubendickia siamensis

description: siamensis, Hubendickia Brandt, 1968
 Hubendickia siamensis Brandt, 1968: 236–237 (pl. 8, fig. 22 + text fig. 15).
Gastropoda, Pomatiopsidae
 Paratype: MZSP 95466.
 Locality: Thailand, Mun River at Phibun Mangsahan (type locality), 8 May 1966.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. The specimen listed above is a possible remainder of several thousand specimens left under the care of the SMRL. This species is a junior synonym of Hubendickia sulcata (Bavay, 1895), according to Davis (1979).
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on pages 47-48, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
The first giant flare from SGR 1806-20: observations with the INTEGRAL SPI Anti-Coincidence Shield
Creators: name: Mereghetti, S.
name: Gotz, D.
name: von Kienlin, A.
name: Rau, A.
name: Lichti, G.
name: Weidenspointner, G.
name: Jean, P.
name: -
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A giant flare from the Soft Gamma-ray Repeater SGR 1806-20 has been detected by several satellites on 2004 December 27. This tremendous outburst, the first one observed from this source, was a hundred times more powerful than the two previous giant flares from SGR 0525-66 and SGR 1900+14. We report the results obtained for this event with the Anticoincidence Shield of the SPI spectrometer on board the INTEGRAL satellite, which provides a high-statistics light curve at E>~80 keV. The flare started with a very strong pulse, which saturated the detector for ~0.7 s, and whose backscattered radiation from the Moon was detected 2.8 s later. This was followed by a ~400 s long tail modulated at the neutron star rotation period of 7.56 s. The tail fluence corresponds to an energy in photons above 3 keV of 1.6x10^44 (d/15 kpc)^2 erg. This is of the same order of the energy emitted in the pulsating tails of the two giant flares seen from other soft repeaters, despite the hundredfold larger overall emitted energy of the SGR 1806-20 giant flare. Long lasting (~1 hour) hard X-ray emission, decaying in time as t^-0.85, and likely associated to the SGR 1806-20 giant flare afterglow has also been detected.
description: revised version - Accepted for publication on The Astrophysical Journal Letters
Phase resonance nonlinear modes of mechanical systems
Creators: name: Volvert, Martin
name: Kerschen, Gaetan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The resonances of forced dynamical systems occur when either the amplitude of the frequency response undergoes a local maximum (amplitude resonance) or phase lag quadrature takes places (phase resonance). This study focuses on the phase resonance of nonlinear mechanical systems subjected to single-point, single-harmonic excitation. In this context, the main contribution of this paper is to develop a computational framework which can predict the mode shapes and oscillation frequencies at phase resonance. The resulting nonlinear modes are termed phase resonance nonlinear modes (PRNMs). A key property of PRNMs is that, besides primary resonances, they can accurately characterize superharmonic, subharmonic and ultra-subharmonic resonances for which, as shall be shown in this paper, phase lags at resonance may be different from pi/2. The proposed developments are demonstrated using one- and two-degree-of-freedom systems featuring a cubic nonlinearity.
description: 23 pages, 22 figures
Terebra simonei S. Lima, Tenorio & Barros 2007
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Terebridae
Terebra
Terebra simonei

description: simonei, Jaspidiconus Petuch & Myers, 2014
 Jaspidiconus simonei Petuch & Myers, 2014a: 47 (fig. 3F–G).
Gastropoda, Conidae
 Holotype: MZSP 116146.
 Locality: Brazil, Rio de Janeiro State, Arraial do Cabo.
 Preservation: Dry.
 Remarks: This species was recombined as Conasprella simonei by Puillandre et al. (2015).
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 48, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
ASSET STORABILITY AND HEDGING EFFECTIVENESS IN COMMODITY FUTURES MARKETS
Creators: name: Yang, Jian
name: Awokuse, Titus O.
name: Yang, Jian
name: Awokuse, Titus O.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: commodity futures
subject: asset storability
subject: hedging effectiveness
subject: multivariate GARCH

description: This paper examines risk minimization hedging effectiveness for major storable and nonstorable agricultural commodity futures markets. Based on the error correction model - bivariate GARCH frameworks, some evidence is found that the hedging effectiveness is stronger for storable commodities than nonstorable commodities under consideration. The finding illustrates an important difference between storable and nonstorable commodities with regard to their hedging function.
Seiberg-Witten maps and commutator anomalies in noncommutative electrodynamics
Creators: name: Banerjee, Rabin
name: Kumar, Kuldeep
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We exploit the Seiberg-Witten maps for fields and currents in a U(1) gauge theory relating the noncommutative and commutative (usual) descriptions to obtain the O(θ) structure of the commutator anomalies in noncommutative electrodynamics. These commutators involve the (covariant) current-current algebra and the (covariant) current-field algebra. We also establish the compatibility of the anomalous commutators with the noncommutative covariant anomaly through the use of certain consistency conditions derived here.
description: 15 pages, minor changes, version appearing in Phys. Rev. D
Conasprella simonei Simone & Cunha 2012
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Conidae
Conasprella
Conasprella simonei

description: simonei, Terebra Lima, Tenório & Barros, 2007
 Terebra simonei Lima, Tenório & Barros, 2007: 64–65 (figs 1–7).
Gastropoda, Terebridae
 Holotype: MZSP 84234.
 Paratype: MZSP 84235 (Fig. 5 K–L).
 Locality: Brazil, off Pernambuco, continental slope, 06°25'36'' S, 34°43'54'' W, D- 1, 425 m depth (type locality), 29 Aug. 1999.
 Collector: R/V Natureza.
 Preservation: Dry.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 48, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Dyonic Kerr-Newman black holes, complex scalar field and Cosmic Censorship
Creators: name: Semiz, Ibrahim
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a gedanken experiment, in which a weak wave packet of the complex massive scalar field interacts with a four-parameter (mass, angular momentum, electric and magnetic charges) Kerr-Newman black hole. We show that this interaction cannot convert an extreme the black hole into a naked sigularity for any black hole parameters and any generic wave packet configuration. The analysis therefore provides support for the weak cosmic censorship conjecture.
description: Refined emphasis on the weak cosmic censorship conjecture, conclusions otherwise unchanged. Also, two sections merged, literature review updated, references added, a few typos corrected
IN-PATIENT FLOW ANALYSIS USING PROMODEL (TM) SIMULATION PACKAGE
Creators: name: Elbeyli, Sema
name: Krishnan, Palaniappa
name: Elbeyli, Sema
name: Krishnan, Palaniappa
Publisher: name: Unknown
Year: 2000
Subjects: subject: Health Economics and Policy
subject: simulation
subject: in-patient flow
subject: health science

description: This paper emphasizes the basic modeling approach of general in-patient flow in a major hospital in the East Coast region. Simulation was used to analyze the inpatient flow. The first objective of this study was to determine the bottlenecks for in-in-patient flow. In order to understand the general in-patient flow, some emphasis was also given to the other units such as Medical-Surgical, Telemetry, Intensive Care Units (ICU), etc. Second objective was to study the impact of bed availability on the waiting time of admitted patients in ED before being transferred to assigned beds in other units of the hospital. A preliminary model was developed and validated based on the data collected for the selected time periods (busy four months). Different "what-if" scenarios were studied. This paper presents the basic model and its results. Key Words: simulation, in-patient flow, health science
title: Suitability of Slower Growing Commercial Turkey Strains for Organic Husbandry in Terms of Animal Welfare and Performance
Creators: name: Olschewsky, Anna
name: Riehn, Katharina
name: Knierim, Ute
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: animal welfare
subject: behavior
subject: health
subject: performance
subject: turkey strains
subject: 590
subject: 630
subject: Truthuhnproduktion
subject: Tierschutz
subject: Verhalten
subject: Tiergesundheit
subject: Leistung
subject: Biologische Viehwirtschaft

description: Gefördert durch den Publikationsfonds der Universität Kassel
ANALYSIS OF CHRISTINA SCHOOL DISTRICT'S 2003 DSTP PERFORMANCE
Creators: name: MacKenzie, John
name: Education, Christina School District Board Of
name: MacKenzie, John
name: Education, Christina School District Board Of
Publisher: name: Unknown
Year: 2004
Subjects: Labor and Human Capital
Teaching/Communication/Extension/Profession

description: This report summarizes the performance of the Christina School District (CSD) on the 2003 Delaware State Testing Program (DSTP). The 2003 test data represent the final set of results attributable to CSD's former leadership team, which was replaced in July of 2003. The DSTP tests all public school 3rd, 5th, 8th and 10th graders in three areas: reading, math and writing. Despite its adequate resources, CSD has generally lagged behind most other school districts in Delaware in student DSTP performance. There is a persistent drop-off in student performance between 3rd and 5th grades, due in part to a significant exodus of high-performing 5th grade students to non-CSD schools, and there is little or no recovery in student performance levels between the 5th and 10th grade tests. The 2003 results identify schools and curriculum areas in particular need of improvement.
SEQUENTIAL LAND ACQUISITION DECISIONS FOR NATURE RESERVES UNDER ACQUISITION AND POPULATION UNCERTAINTY
Creators: name: Malcolm, Scott A.
name: Malcolm, Scott A.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use
Resource /Energy Economics and Policy

description: Nature reserve planning models to maximize species protection are typically formulated for a single period using certain data. In practice, however, parcels must be acquired over time. The status of a parcel may change due to conversion to alternate land use. Populations of species to be protected may change, as well. A two-stage stochastic program that maximizes expected species protection with annual budget constraints is proposed where parcels available for set aside have associated probabilities of being available for acquisition and species coverage. Runs on hypothetical data show that solutions differ from the single period model and depend strongly on the probability of acquisition in future periods.
PREDICTIVE TIME MODEL OF AN ANGLIA AUTOFLOW MECHANICAL CHICKEN CATCHING SYSTEM
Creators: name: Ramasamy, Saravanan
name: Benson, Eric R.
name: Bernard, John C.
name: Van Wicklen, Garrett L.
name: Ramasamy, Saravanan
name: Benson, Eric R.
name: Bernard, John C.
name: Van Wicklen, Garrett L.
Publisher: name: Unknown
Year: 2003
Subjects: Livestock Production/Industries

description: In this project, a predictive time model was developed for an Anglia Autoflow mechanical chicken catching system. At the completion of poultry growout, hand labor is currently used to collect the birds from the house, although some integrators are beginning to incorporate mechanical catching equipment. Several regression models were investigated with the objective of predicting the time taken to catch the chicken. A regression model relating distance to total time (sum of packing time, catching time, movement to catching and movement to packing) provided the best performance. The model was based on data collected from poultry farms on the Delmarva Peninsula during a six-month period. Statistical Analysis System (SAS) and NeuroShell Easy Predictor were used to build the regression and neural network models respectively. Model adequacy was established by both visual inspection and statistical techniques. The models were validated with experimental results not incorporated into the initial model.
Optimising a magnitude-limited spectroscopic training sample for photometric classification of supernovae
Creators: name: Carrick, Jonathan E.
name: Hook, Isobel M.
name: Swann, Elizabeth
name: Boone, Kyle
name: Frohmaier, Chris
name: Kim, Alex G.
name: Sullivan, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In preparation for photometric classification of transients from the Legacy Survey of Space and Time (LSST) we run tests with different training data sets. Using estimates of the depth to which the 4-metre Multi-Object Spectroscopic Telescope (4MOST) Time Domain Extragalactic Survey (TiDES) can classify transients, we simulate a magnitude-limited sample reaching $r_{\textrm{AB}} \approx$ 22.5 mag. We run our simulations with the software snmachine, a photometric classification pipeline using machine learning. The machine-learning algorithms struggle to classify supernovae when the training sample is magnitude-limited, in contrast to representative training samples. Classification performance noticeably improves when we combine the magnitude-limited training sample with a simulated realistic sample of faint, high-redshift supernovae observed from larger spectroscopic facilities; the algorithms' range of average area under ROC curve (AUC) scores over 10 runs increases from 0.547-0.628 to 0.946-0.969 and purity of the classified sample reaches 95 per cent in all runs for 2 of the 4 algorithms. By creating new, artificial light curves using the augmentation software avocado, we achieve a purity in our classified sample of 95 per cent in all 10 runs performed for all machine-learning algorithms considered. We also reach a highest average AUC score of 0.986 with the artificial neural network algorithm. Having `true' faint supernovae to complement our magnitude-limited sample is a crucial requirement in optimisation of a 4MOST spectroscopic sample. However, our results are a proof of concept that augmentation is also necessary to achieve the best classification results.
description: MNRAS accepted version Aug 2021
Criar personas automáticas ou personas manuais? Um estudo comparativo na geração de personas de crianças com Transtorno do Espectro Autista com base em dados reais.
Creators: name: Ommited For Review
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: 80109 Pattern Recognition and Data Mining
subject: FOS: Computer and information sciences

description: Clusters, Personas Geradas e Formulários de avaliação da qualidade de personas de crianças com Transtorno do Espectro Autista (TEA) utilizados no artigo "Criar personas automáticas ou personas manuais? Um estudo comparativo na geração de personas de crianças com Transtorno do Espectro Autista com base em dados reais".
Criar personas automáticas ou personas manuais? Um estudocomparativo na geração de personas de crianças comTranstorno do Espectro Autista com base em dados reais.
Creators: name: Ommited For Review
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: 80109 Pattern Recognition and Data Mining
subject: FOS: Computer and information sciences

description: Clusters, Personas Geradas e Formulários de avaliação da qualidade de personas de crianças com Transtorno do Espectro Autista (TEA) utilizados no artigo "Criar personas automáticas ou personas manuais? Um estudo comparativo na geração de personas de crianças com Transtorno do Espectro Autista com base em dados reais."
Probing Dark Sector CP Violation with Electric Dipole Moments and Colliders
Creators: name: de Lima, Carlos Henrique
name: Keeshan, Ben
name: Logan, Heather E.
name: Zhang, Yue
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the experimental constraints on dark sector CP violation that enters the visible sector through a Higgs portal coupling $H^{\dagger} H Z^{\prime}_{μν} \widetilde Z^{\prime μν}$, where the $Z^{\prime}$ is from a new U(1) gauge symmetry which is assumed to couple to lepton number. We compute explicitly the leading two-loop contribution of this effective operator to the electron electric dipole moment (EDM) and show that the resulting constraints are comparable to those from direct $Z^{\prime}$ searches at electron-positron colliders when the effective operator is generated at tree level. We also examine an explicit UV completion for this effective operator that was first introduced to achieve electroweak baryogenesis and show that collider constraints from $B$-factories already exclude viable baryogenesis for $Z^{\prime}$ masses below 10 GeV, and that future electron-positron Higgs factories will exclude viable baryogenesis for $Z^{\prime}$ masses up to the $e^+e^-$ center-of-mass energy if anticipated luminosities are achieved. For higher $Z^{\prime}$ masses, the full viable baryogenesis parameter space lies within six orders of magnitude of the current upper bound on the electron EDM.
description: 19 pages, 6 figures, v2:references added, typos corrected, figure 4 corrected. v3: version to be published in PRD
Non-gaussianity from the second-order cosmological perturbation
Creators: name: Lyth, David H.
name: Rodriguez, Yeinzon
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Several conserved and/or gauge invariant quantities described as the second-order curvature perturbation have been given in the literature. We revisit various scenarios for the generation of second-order non-gaussianity in the primordial curvature perturbation ζ, employing for the first time a unified notation and focusing on the normalisation f_{NL} of the bispectrum. When the classical curvature perturbation first appears a few Hubble times after horizon exit, |f_{NL}| is much less than 1 and is, therefore, negligible. Thereafter ζ(and hence f_{NL}) is conserved as long as the pressure is a unique function of energy density (adiabatic pressure). Non-adiabatic pressure comes presumably only from the effect of fields, other than the one pointing along the inflationary trajectory, which are light during inflation (`light non-inflaton fields'). During single-component inflation f_{NL} is constant, but multi-component inflation might generate |f_{NL}| \sim 1 or bigger. Preheating can affect f_{NL} only in atypical scenarios where it involves light non-inflaton fields. The curvaton scenario typically gives f_{NL} \ll -1 or f_{NL} = +5/4. The inhomogeneous reheating scenario can give a wide range of values for f_{NL}. Unless there is a detection, observation can eventually provide a limit |f_{NL}| \lsim 1, at which level it will be crucial to calculate the precise observational limit using second order theory.
description: Latex file in Revtex style. 13 pages, 1 figure. v2: minor changes. Discussion in Subsection VI-A enlarged. References added. Conclusions unchanged. v3: minor typographic changes. Correlated and uncorrelated \chi^2 non-gaussianity concepts and consequences introduced. Section VI-A enlarged. Small change in Table I. References updated and added. Conclusions unchanged. Version to appear in Physical Review D
THE EFFECT OF LOCAL ECONOMIC DEVELOPMENT POLICY ON EMPLOYMENT GROWTH IN RURAL COUNTIES IN THE MID-ATLANTIC REGION
Creators: name: James, Sara-Beth
name: Ilvento, Thomas W.
name: Hastings, Steven E.
name: James, Sara-Beth
name: Ilvento, Thomas W.
name: Hastings, Steven E.
Publisher: name: Unknown
Year: 2002
Subjects: Community/Rural/Urban Development
Labor and Human Capital

description: This paper analyzes the role of local economic development strategies on employment. Data were collected on employment changes in 146 nonmetro counties along with a survey of economic development offices (99 surveys, 67.8%). Using OLS, results show that counties that increased economic development emphasis had higher employment growth.
Exploring competent professional practice : a social practice theory approach
Creators: name: Dumbreck, Siobhan Grainne
Publisher: name: The University of St Andrews
Year: 2022
Subjects: Performance measure
Evidence based practice
Competent practice
Professional practice

description: During a medical consultation, the right answer in terms of medical knowledge from evidence within clinical guidelines, may not align with the right answer for an individual patient. This can create tension within a medical consultation between the delivery of patient-centred care and externally imposed performance measures. This thesis illuminates a way to differentiate between unwarranted variation from a well-founded, mandated evidence base versus exercise of professional judgement and use of alternative sources of knowledge. This qualitative case study used a practice-based approach, and reflexive thematic analysis, to investigate how medical students use evidence-based knowledge within a consultation with an individual patient. This involved observation of teaching practice, and simulated consultations, then follow-up interviews with medical students, simulated patients and medical school tutors. This illuminated what is meant by competent professional practice and provision of patient-centred care. The thesis makes a methodological contribution by providing an alternative way of studying the complexity of implementation of evidence-based practice, as a social practice rather than a linear predictable practice. This study showed the value of considering ethical principles to support the patient to co-construct the performance. Patient-centred care could be demonstrated by the medical student being explicit about connecting with meaning from within the practice of the patient, to respect patient autonomy and epistemic justice. This required attention to which practice, and which elements within practice were attended to, from within the bundle of multiple practices within any context at each point in time. By teaching for connections, tutors support the competence of students to reflect on both the meaning element within the practice, and the material element within practice. The tutors can use feedback to support the students to use sociological imagination, to create a practice which is most meaningful for an individual patient, to provide patient-centred care within evidence-based medicine.
Neniella strictecostata Nordsieck 2005
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Clausiliidae
Neniella
Neniella strictecostata

description: strictecostata, Neniella Nordsieck, 2005
 Neniella strictecostata Nordsieck, 2005b: 207 (fig. 7).
Gastropoda, Clausiliidae
 Paratype: MZSP 95947 (Fig. 6 E–F).
 Locality: Peru, Amazonas Department, c. 20 km from the bridge over Marañon River near Balsas to Leymebamba, 06°50.786' S, 77°57.728' W (type locality), on rocks, 2 Nov. 2004.
 Collector: J. Hemmen.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. The specimen listed above is a remainder of an 8-specimen paratype lot deposited by Nordsieck in Hemmen’s collection.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 48, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
A Note on the Analytic Families of Compact Submanifolds of Complex Manifolds
Creators: name: Lu, Zhiqin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper, we prove a result related to the deformation of complex submanifolds, modifying a result of Kodaira (Ann. Math, 75(1), 146-162, 1962).
Influence of Sodium Inward Current on Dynamical Behaviour of Modified Morris-Lecar Model
Creators: name: Fatoyinbo, Hammed Olawale
name: Muni, Sishu Shankar
name: Abidemi, Afeez
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37N04, 34C23, 34K18, 34C28

description: This paper presents a modified Morris-Lecar model by incorporating the sodium inward current. The dynamical behaviour of the model in response to key parameters is investigated. The model exhibits various excitability properties as the values of parameters are varied. We have examined the effects of changes in maximum ion conductances and external current on the dynamics of the membrane potential. A detailed numerical bifurcation analysis is conducted. The bifurcation structures obtained in this study are not present in existing bifurcation studies of original Morris-Lecar model. The results in this study provides the interpretation of electrical activity in excitable cells and a platform for further study.
The combinatorics of the Baer-Specker group
Creators: name: Machura, Michal
name: Tsaban, Boaz
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Topology (math.GN)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: Logic (math.LO)
subject: FOS: Mathematics

description: Denote the integers by Z and the positive integers by N. The groups Z^k (k a natural number) are discrete, and the classification up to isomorphism of their (topological) subgroups is trivial. But already for the countably infinite power Z^N of Z, the situation is different. Here the product topology is nontrivial, and the subgroups of Z^N make a rich source of examples of non-isomorphic topological groups. Z^N is the Baer-Specker group. We study subgroups of the Baer-Specker group which possess group theoretic properties analogous to properties introduced by Menger (1924), Hurewicz (1925), Rothberger (1938), and Scheepers (1996). The studied properties were introduced independently by Kočinac and Okunev. We obtain purely combinatorial characterizations of these properties, and combine them with other techniques to solve several questions of Babinkostova, Kočinac, and Scheepers.
description: To appear in IJM
ISM gas removal from starburst galxies and the premature death of star clusters
Creators: name: Melioli, C.
name: Pino, E. M. de Gouveia Dal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observational studies of the age distribution of star clusters in nearby merging galaxies and starburst (SB) galaxies indicate a premature death of the young clusters. The fate of an evolving star cluster crucially depends of its gas content. This behaves like a glue that helps to keep the star system gravitationally bound. In SB systems where the rate of supernovae (SNe) explosions is elevated one should expect an efficient heating of the gas and its complete removal which could then favor the rapid dissociation of the evolving star clusters. Based on a contemporaneous study of the dynamical evolution of the interstellar gas in SB environments (Melioli & de Gouveia Dal Pino 2004) where it has been considered also the presence of dense clouds that may inhibit the heating efficiency of the interstellar gas by the SNe, we have here computed the timescales for gas removal from young clusters embedded in these systems and found that they are consistent with the very short timescales for cluster dissolution which are inferred from the observational studies above. Our results indicate that typical SB proto-clusters should start to disperse after less than 5 Myr. For a given total gas mass content, this result is nearly insensitive to the initial star formation efficiency.
description: 4 pages, 3 figures, A&A Letter accepted
Planar resonant periodic orbits in Kuiper belt dynamics
Creators: name: Voyatzis, George
name: Kotoulas, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u. Our study is based on the computation of resonant periodic orbits and their stability. Stable periodic orbits are surrounded by regular librations in phase space and in such domains the capture of trans-Neptunian object is possible. All the periodic orbits found are symmetric and there is evidence for the existence of asymmetric ones only in few cases. In the present work first, second and third order resonances are under consideration. In the planar circular case we found that most of the periodic orbits are stable. The families of periodic orbits are temporarily interrupted by collisions but they continue up to relatively large values of the Jacobi constant and highly eccentric regular motion exists for all cases. In the elliptic problem and for a particular eccentricity value of the primary bodies the periodic orbits are isolated. The corresponding families, where they belong to, bifurcate from specific periodic orbits of the circular problem and seem to continue up to the rectilinear problem. Both stable and unstable orbits are obtained for each case. In the elliptic problem the unstable orbits found are associated with narrow chaotic domains in phase space. The evolution of the orbits, which are located in such chaotic domains, seems to be practically regular and bounded for long time intervals.
description: preprint, 20 pages, 10 figures
Decompositions of graphs of functions and efficient iterations of lookup tables
Creators: name: Tsaban, Boaz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computational Complexity (cs.CC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We show that every function f implemented as a lookup table can be implemented such that the computational complexity of evaluating f^m(x) is small, independently of m and x. The implementation only increases the storage space by a small_constant_ factor.
description: Small updates
Hallmarks of tunneling dynamics with broken reflective symmetry
Creators: name: Berezovoj, V. P.
name: Konchatnij, M. I.
name: Nurmagambetov, A. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study features of tunneling dynamics in an exactly-solvable model of N=4 supersymmetric quantum mechanics with a multi-well potential and with broken reflective symmetry. Quantum systems with a phenomenological potential of this type demonstrate the phenomenon of partial localization of under-barrier states, possibly resulting in the appearance of the so-called "resonant" tunneling, or the phenomenon of coherent tunneling destruction, referring to the complete localization. Taking the partial localization and the coherent tunneling destruction as basic examples, we indicate main advantages of using isospectral exactly-solvable Hamiltonians in studies quantum mechanical systems with two- and three-well potentials. They, in particular, are: having enough freedom of changing the potential shape in a wide range, that allows one to choose an exactly-solvable model close to characteristics of the phenomenological one; ability of changing the number of local minima and symmetry characteristics of the potential (symmetric or deformed) without changing the main part of the spectrum; engaging a smart basis of states, that dramatically decreases the dimensionality of matrices used in the diagonalization procedure of the corresponding spectral problem.
description: 32 pages, 10 Figs; v2: 29 pages, 10 Figs, corrected version; v3: 32 pages, improved Figs, published version
The Fastest Relativistic Jets: VLBA Observations of Blazars with Apparent Speeds Exceeding 25c
Creators: name: Piner, B. G.
name: Bhattarai, D.
name: Edwards, P. G.
name: Jones, D. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have measured peak apparent speeds of 25.6 +/- 7.0c, 25.6 +/- 4.4c, and 28.2 +/- 6.6c in the jets of 0235+164, 0827+243, and 1406-076, respectively, based on six epochs of high-sensitivity VLBA observations at 22 and 43 GHz during 2002 and 2003 (H_{0}=71 km/(s Mpc), Omega_{m}=0.27, and Omega_{Lambda}=0.73). These blazars had been identified as potentially having apparent speeds exceeding 40c in an earlier VLBA survey of EGRET blazars by Jorstad et al. We therefore confirm (with high confidence in 0827+243, and lower confidence in 0235+164 and 1406-076) the presence of highly relativistic pattern speeds in these three jets, although not at the >40c levels reported by Jorstad et al. The lower limit to the bulk Lorentz factor implied by the observed apparent speeds is Gamma>25-30 in these three sources, if the pattern speeds are equal to or slower than the bulk flow speed.
description: Accepted to ApJ, 8 pages, 1 color figure
Detection of ethanol, cannabinoids, benzodiazepines, and opioids in older adults evaluated for serious injuries from falls
Creators: name: Babu, Kavita M.
name: Haddad, Yara K.
name: Causey, Shakiera T.
name: Vargas-Torres, Carmen C.
name: Martinez, Patricia Mae
name: Goldberg, Elizabeth M.
name: Dorfman, Jon D.
name: Bleser, Julia A.
name: Chapman, Brittany P.
name: Lai, Jeffrey T.
name: Saif, Riyadh
name: Elhoussan, Romanda
name: Graham, Lindsey A.
name: Krotulski, Alex J.
name: Walton, Sara E.
name: Thomas, F. Dennis
name: Logan, Barry K.
name: Merchant, Roland C.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: In 2020, there were 36.7 million reported falls among older adults (65+) in the United States. Ethanol and other sedating substances may increase fall risk among older adults due to their effect on cognitive and physical function. We estimate the prevalence of these substances in blood specimens of older adults presenting with a fall injury at selected trauma centers. The initial study collected blood specimens from May 2020 through July 2021 from adults undergoing a trauma team evaluation at selected United States Level 1 trauma centers. We limited our study to older adults evaluated after a fall (n = 1,365) and selected a random sample (n = 300) based on age, sex, and trauma-center quotas. Medical health records and blood specimens obtained at trauma center presentation were analyzed. We estimated the prevalence of ethanol, benzodiazepines, cannabinoids, and opioids in the blood specimens. Two-sample tests of binomial proportions and Chi-square two-tailed tests were used to compare prevalence estimates of substances by demographic characteristics. At least one substance was detected among 31.3% of samples analyzed. Prevalences of specific substances detected were 9.3% (95% CI: 6.0–12.6%) for benzodiazepines, 4.3% (95% CI: 2.0–6.7%) for cannabinoids, 8.0% (95% CI: 5.2–11.7%) for ethanol, and 15.0% (95% CI: 10.9–19.1%) for opioids. There were 18 deaths (6%; 95% CI: 3.6–9.3%). One-third of decedents had at least one substance detected in their blood. Opioids were the most frequently detected substance, followed by benzodiazepines, ethanol, and cannabinoids. Substance use prevalence was not uniform across demographics, with differences observed by sex and age. This study provides insight into the frequency of the presence of substances that may contribute to fall risk and serious injury among older adults. Screening older adults for substances that impair cognitive and physical function can enhance clinical fall prevention efforts.
Diplommatina supralamellata Maassen 2007
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Diplommatinidae
Diplommatina
Diplommatina supralamellata

description: supralamellata, Diplommatina Maassen, 2007
 Diplommatina supralamellata Maassen, 2007: 191–194 (figs 1–3).
Gastropoda, Diplommatinidae
 Probable paratype: MZSP 95498 (Fig. 1 I–J).
 Locality: Indonesia, S Sulawesi, Tanah Toraja, 1.5 km W of Rantepao, 02°57.18' S, 119°53.63' E, 750 m altitude, Jul. 2002.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. Data on the specimen’s label correspond to a 25-specimen lot deposited in Maassen’s reference collection, originally catalogued as MD 110.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 48, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
SOURCE: a semi‑automatic tool for spring‑monitoring data analysis and aquifer characterisation
Creators: name: Stefano, Lo Russo
name: Suozzi Enrico
name: Martina, Gizzi
name: Taddia Glenda
Publisher: name: Zenodo
Year: 2022
Subjects: Mountain springs · Hydrogeology · Hydrology · Python App · Spring vulnerability

description: SOURCE is a new semi-automatic tool that automates the hydrogeological characterisation of water springs and provides proper estimations of the vulnerability index, as well as autocorrelation and cross-correlation statistical coefficients. SOURCE single software package rapidly processed input data from water probes and metemeteorological stations to provide graphical outputs and values for the main hydrodynamic parameters.
Population III Binary Black Holes: Effects of Convective Overshooting on Formation of GW190521
Creators: name: Tanikawa, Ataru
name: Kinugawa, Tomoya
name: Yoshida, Takashi
name: Hijikawa, Kotaro
name: Umeda, Hideyuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: GW190521 is a merger of two black holes (BHs), wherein at least one BH lies within the pair-instability (PI) mass gap, and it is difficult to form because of the effects of PI supernovae (PISNe) and pulsational PI (PPI). In this study, we examined the formation of GW190521-like BH-BHs under Population (Pop) III environments by binary population synthesis calculations. We reveal that convective overshooting in stellar evolution strongly affects the formation of GW190521-like BH-BHs. A model with a small overshoot parameter (similar to GENEC) can form GW190521-like BH-BHs. The derived merger rate is $4 \times 10^{-2}$ ${\rm yr}^{-1}$ ${\rm Gpc}^{-3}$ at a redshift of $\sim 0.82$, which is comparable to the merger rate of GW190521-like BH-BHs inferred by gravitational wave (GW) observations. In this model, a $\sim 90~M_\odot$ star collapses to form a $\sim 90~M_\odot$ BH by avoiding PPI and PISN even if it is a member of a binary star. This is because it expands up to $10^2~R_\odot$, and lose only little mass through binary evolution. However, a model with a large overshoot parameter (similar to Stern) cannot form GW190521-like BH-BHs at all. Thus, we cannot conclude that a Pop~III binary system is the origin of GW190521 because determination of the overshoot parameter involves highly uncertain. If a Pop~III binary system is the origin of GW190521, the merger rate of BH-BHs including a $100-135~M_\odot$ BH is substantially smaller than that of GW190521-like BH-BHs. This will be assessed by GW observations in the near future.
description: 8 pages, 6 figures, 1 table, MNRAS accepted
[Brev til DKNVS]
Creators: name: Wiiger,
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1830

description: Oversender noen bøker
description: Kun vedlegget finnes. Polydoc nr. 1: 1852. Polydoc nr. 2: 1268.
MOVING BEYOND CHALK AND TALK: USING PROBLEM-BASED-LEARNING IN A RESEARCH METHODS COURSE SEQUENCE
Creators: name: Aull-Hyde, Rhonda L.
name: Ilvento, Thomas W.
name: Aull-Hyde, Rhonda L.
name: Ilvento, Thomas W.
Publisher: name: Unknown
Year: 2002
Subjects: Research Methods/ Statistical Methods
Teaching/Communication/Extension/Profession

description: The average adult can concentrate for only about eight to ten minutes during an hour-long lecture. Thus, students' ability to absorb information may be seriously impeded if we college professors talk nonstop. One alternative to the traditional "chalk and talk" instructional method is problem-based learning (PBL) - an instructional approach using real world problems as a format for students to acquire critical thinking, problem solving and group interaction skills. We describe how we transformed a two-course sequence in research methods into a problem-based-learning format. Student-reported benefits of the PBL approach include the need for higher-order thinking, improved group interaction skills, relevance of course material to real world situations, higher motivation and an overall higher level of class enjoyment.