cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vlasov Equation In Magnetic Field
Creators: name: Wu, Biao
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The linearized Vlasov equation for a plasma system in a uniform magnetic field and the corresponding linear Vlasov operator are studied. The spectrum and the corresponding eigenfunctions of the Vlasov operator are found. The spectrum of this operator consists of two parts: one is continuous and real; the other is discrete and complex. Interestingly, the real eigenvalues are infinitely degenerate, which causes difficulty solving this initial value problem by using the conventional eigenfunction expansion method. Finally, the Vlasov equation is solved by the resolvent method.
description: 15 pages
Υγεία και Ασφάλεια του Προσωπικού Έκτακτης Ανάγκης σε μια Καταστροφή Μεγάλης Κλίμακας, Πανελλήνιο Συνέδριο "Υγεία και Ασφάλεια στην Εργασία & Πολιτική Προστασία", Αθήνα 14-15 Οκτωβρίου 2016
Creators: name: Καραμάνου, Ασπασία
name: Ιωάννα Τσούπρα
name: Ευστράτιος Δαβάκης
name: Σπυρίδων Μακρής
Publisher: name: figshare
Year: 2019
Subjects: subject: 40604 Natural Hazards
subject: FOS: Earth and related environmental sciences
subject: 130205 Humanities and Social Sciences Curriculum and Pedagogy (excl. Economics, Business and Management)
subject: FOS: Educational sciences
subject: 50205 Environmental Management
subject: 150305 Human Resources Management
subject: FOS: Economics and business

description: Ένα χαρακτηριστικό αυτών των μεγάλων, σπάνιων, και δυναμικών εκδηλώσεων των καταστροφών, είναι η ταχέως εξελισσόμενη πολυπλοκότητα που αντιμετωπίζουν τα άτομα που προσπαθούν να διαχειριστούν αποτελεσματικά όλες τις οργανώσεις, τους ανθρώπους, τις δραστηριότητες και τα καθήκοντα, τον εξοπλισμό και τις προμήθειες, τις επικοινωνίες καθώς και την ασφάλεια και την υγεία όλων των εμπλεκομένων. Η παρουσίαση επικεντρώνεται στο σχεδιασμό ετοιμότητας των καταστροφών μεγάλης κλίμακας παρέχοντας μια σειρά βιβλιογραφικών συστάσεων, σχετικά με το πώς θα μπορούσε να βελτιωθεί η διαχείριση της υγείας και ασφάλειας του προσωπικού έκτακτης ανάγκης στον τόπο της καταστροφής. Το θέμα αυτό έχει επισημανθεί από πολλούς ειδικούς και αποτελεί ζήτημα αυξημένης προτεραιότητας, λαμβάνοντας υπόψη ότι οι εργαζόμενοι εκτίθεται σε όλο και περισσότερους και σοβαρότερους κινδύνους καθώς έρχονται αντιμέτωποι με τα καταστροφικά γεγονότα μεγαλύτερα τόσο σε αριθμό όσο και των επιπτώσεών τους.
Effectiveness of Remedial Mathematics Supplemental Instruction: a Community College Study.
Creators: Sagna, Bakary
Publisher: name: Columbia University
Year: 2019
Subjects: Education, Secondary
Mathematics--Study and teaching
Education--Study and teaching
Teaching
Mathematics--Remedial teaching

description: The purpose of this mixed method study was to determine if there is a relationship between characteristics of supplemental instructors’ personal traits, teaching skills, subject matter, constructive/active, collaborative learning, effective communication, and their practices (as judged by students) and student success in their remedial mathematics course. The college Provost was contacted by email to request an authorization to conduct this study in his college. Once approved, the investigator contacted face to face his colleagues to ask their students to participate in the study because they enrolled in a remedial algebra class where the instructor is assisted by a supplemental instructor (SI leader). Sixteen algebra classes were selected, and each were assisted by supplemental instructors. Students’ scores on the pre-test (at beginning of the semester) and post-test (at the end of the semester) were collected to gauge their achievement on both tests. Students completed a questionnaire that asked about their perceptions about their supplemental instructors’ personal traits, teaching skills, subject matter, constructive/active, collaborative learning, effective communication, and their practices throughout the semester. Students’ mean scores difference on the post-test were higher in 62.5% of the sections than on the pre-test. The evaluation of achievement on both tests, the responses to the questionnaire and comments from students showed that SI leader’s characteristics associated to effective communication/active learning, teaching skills, and personal traits could be contributor to score achievements. The linear regression in the study shows that the three factors did not significantly predict the post-test score. However, the pre-test did significantly predict the post-test score in a remedial Math 20 at the end of the semester (Beta = .47, t (197) = 6.56, p
title: Collaborative ontology engineering
title: a survey
titleType: Subtitle
Creators: name: Simperl, Elena
name: Luczak-Rösch, Markus
Publisher: name: Freie Universität Berlin
Year: 2014
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::000 Informatik, Informationswissenschaft, allgemeine Werke

description: Building ontologies in a collaborative and increasingly community-driven fashion has become a central paradigm of modern ontology engineering. This understanding of ontologies and ontology engineering processes is the result of intensive theoretical and empirical research within the Semantic Web community, supported by technology developments such as Web 2.0. Over 6 years after the publication of the first methodology for collaborative ontology engineering, it is generally acknowledged that, in order to be useful, but also economically feasible, ontologies should be developed and maintained in a community-driven manner, with the help of fully-fledged environments providing dedicated support for collaboration and user participation. Wikis, and similar communication and collaboration platforms enabling ontology stakeholders to exchange ideas and discuss modeling decisions are probably the most important technological components of such environments. In addition, process-driven methodologies assist the ontology engineering team throughout the ontology life cycle, and provide empirically grounded best practices and guidelines for optimizing ontology development results in real-world projects. The goal of this article is to analyze the state of the art in the field of collaborative ontology engineering. We will survey several of the most outstanding methodologies, methods and techniques that have emerged in the last years, and present the most popular development environments, which can be utilized to carry out, or facilitate specific activities within the methodologies. A discussion of the open issues identified concludes the survey and provides a roadmap for future research and development in this lively and promising field.
Split-ring polariton condensates as macroscopic two-level quantum systems
Creators: name: Xue, Yan
name: Chestnov, Igor
name: Sedov, Evgeny
name: Kiktenko, Evgeny
name: Fedorov, Aleksey
name: Schumacher, Stefan
name: Ma, Xuekai
name: Kavokin, Alexey
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superposition states of circular currents of exciton-polaritons mimic the superconducting flux qubits. The phase of a polariton fluid must change by an integer number of $2π$, when going around the ring. If one introduces a $π$-phase delay line in the ring, the fluid is obliged to propagate a clockwise or anticlockwise circular current to reduce the total phase gained over one round-trip to zero or to build it up to $2π$. We show that such a $π$-delay line can be provided by a dark soliton pinned to a potential well created by a C-shape non-resonant pump-spot. The resulting split-ring polariton condensates exhibit pronounced coherent oscillations passing periodically through clockwise and anticlockwise current states. These oscillations may persist far beyond the coherence time of polariton condensates. The qubits based on split-ring polariton condensates are expected to possess very high figures of merit that makes them a valuable alternative to superconducting qubits. The use of the dipole-polarized polaritons allows to control coherently the state of the qubit with the external electric field. This is shown to be one of the tools for realization of single-qubit logic operations. We propose the design of an $i$SWAP gate based on a pair of coupled polariton qubits. To demonstrate the capacity of the polariton platform for quantum computations, we propose a protocol for the realization of the Deutsch's algorithm with polariton qubit networks.
description: 18 pages, 15 figures
Which countries avoid carbon-intensive development?
Creators: name: Lamb, William F.
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: 300 Sozialwissenschaften::320 Politikwissenschaft
subject: 300 Sozialwissenschaften::330 Wirtschaft::333 Boden- und Energiewirtschaft

description: This paper explores the underlying development outcomes and cumulative emissions trajectories of 20 middle-income countries from Eastern Europe, Latin America, North Africa and South Asia. First, it assesses their well- being outcomes, defined in terms of access to education, democratic and legal rights, and the infrastructures that support physical health. Second, it estimates their emissions trajectories to 2050, taking into account current trends in energy consumption and carbon intensity, a likely start-date for stringent climate policy arising from the Paris Agreement (2020), and maximum feasible rates of mitigation. Comparing these estimates to a per capita allocation from the global carbon budget associated with 2oC, ten countries have low-carbon development trends that will not exceed their allocation. Of these, Costa Rica and Uruguay are achieving very high well-being outcomes, while many more are delivering good outcomes in at least two domains of human need. However, most are seriously deficient in terms of social well-being (education, democratic and legal rights). These results call into question the socio-economic convergence of developing countries with industrialised countries; but they also reaffirm the low-emissions cost of extending good infrastructure access and physical health outcomes to all, demonstrated by the existence of multiple countries that continue to avoid carbon-intensive development.
EFFECT OF SDS AND THF ON FORMATION OF METHANE-CONTAINING HYDRATES IN PURE WATER
Creators: name: Bin, Dou
name: Zhang, Ling
name: Wu, Xiang
name: Ning, Fulong
name: Tu, Yunzhong
name: Jiang, Guosheng
Publisher: name: The University of British Columbia
Year: 2008

description: Gas hydrate formation generally involves gas dissolution, formation of nuclei and growth of new nucleus. On condition of synthesizing experiments without agitation, the formation of hydrate nuclei is comparatively difficult and needs an induction period which is considerably uncertain and random. Some additives such as surfactant sodium dodecyl sulfate (SDS) can increase the formation rate and reduce the induction time. A hydrate formation and mini drilling experimental system was used to carry on methane hydrate formation experiments with small quantity of SDS and SDS- tetrahydrofuran(THF) in deionized water. The reactor is a high pressure cell (40Mpa) made of titanium alloy with 4 transparent windows and an inner volume of about 2.8 liters. The effect of SDS and THF hydrate on the formation rate and amount of methane hydrate was studied by comparative testing and analyzing the collected data of temperature and pressure. According to the results of the tests, the formation rate of methane hydrate in the SDS-THF solution was faster than that in the SDS solution. As a water-soluble hydrate former, THF hydrate nucleation may be benefit of methane hydrate nucleation. A small amount of SDS and THF could dramatically promote the formation of methane hydrate in the pure water, and rapidly increase the amount of methane hydrate too. Therefore, a great deal of time for experiment was saved, which established a good basis for the coming mini drilling and drilling fluid experiments.
title: Proposal CF-105 program 4
Creators: name: Avro Aircraft Limited (Canada)
Publisher: name: Avro Aircraft Limited (Canada)
Year: 1956
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
description: Brochure (Avro Aircraft Limited (Canada)), AD-44
Effectively Implementing an Online Homework and Testing Management System to Increase Student Achievement - A Student Tailored Pedagogical Approach
Creators: Dawes, Dale
Publisher: name: Columbia University
Year: 2016
Subjects: Feedback (Psychology)
Mathematics--Study and teaching--Technological innovations
Web-based instruction
Mathematics--Study and teaching
Adult education
Educational technology

description: Turning to online educational technology is a growing trend in our society.  In particular, many community college Mathematics Departments have adopted online preparation and rigorous enhancement platform (OPREP) such as WebAssign.  Nationally educators are attempting to address the low passing rates in developmental mathematics.  Developmental mathematics courses are the gatekeepers to higher education.  Slow progression through these courses can adversely affect a student’s ability to persist to graduation, which in turn impacts an individual’s employment opportunities and quality of life.  The literature shows that OPREPs are typically employed to replace the tedious and time-consuming task of grading paper-based homework.  Ignoring the testing management features of an OPREP and limiting it to a web-based homework tool is a reflection on implementation strategy.  The purpose of this research is to develop a grounded theory about effectively implementing OPREP, which is informed by the perspectives and beliefs of the developmental mathematics students who use them.  This mixed method study critically analyzed the student comment sheets, student evaluations, and the responses from 129 Elementary Algebra students who completed a questionnaire about their experiences using WebAssign.  Analysis through an adult learning theory lens revealed the central phenomenon of the students’ needs for immediate feedback and the role that feedback plays in facilitating self-regulated learning.
      The findings reveal that the nature of the feedback extended beyond correctness.  Students preferred to use interactive step-by-step tutorials, practicing different versions of the problem and watching lectures more than any other learning tool.
      The instructor’s implementation was a point of emphasis for key students.  Multiple repeaters of elementary algebra stressed the importance of the OPREP implementation strategy on their achievement.  Comments range from differences in the availability and strategic deployment of the learning tools to proper instruction on how a student should use the OPREP.  Although this study confirms a significant and relative large correlation between homework and an exit examination, it also shows that OPREP assessments such as quizzes and practice examinations have stronger positive correlations.  Results showed that OPREP quiz average was the best sole predictor of student achievement.  OPREP quiz average was also the only OPREP assignment category included as a predictor of student achievement in the best multiple linear regression model.
Lanurgus carinatus Jordal 2021, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Lanurgus
Lanurgus carinatus

description: Lanurgus carinatus Jordal sp. nov.
urn:lsid:zoobank.org:act: 94B491F3-07DD-45CF-A254-2062F8113C79
(Figs 48, 51, 54)
 Type material. Holotype male: [South Africa] Western Cape, Cape Peninsula, Headquarter Table Mt. Nat. Park, 4.xii.2007, leg. W. Mey. Holotype deposited in ZMHB.
 Diagnosis. Antennal club two times as long as broad. Interstriae 7 sharply carinate; interstrial setae spatulate, in rows on disk, increasingly broader and confused on declivity.
 Description, male. Length 1.7 mm, 2.5 × as long as wide. Colour black. Frons broadly, shallowly concave between eyes, from epistoma to upper level of eyes; surface smooth with scant short setae. Eyes approximately separated above by 3 × their width (not fully visible). Antennal scapus short, as long as broad with few setae not longer than scapus; funiculus 6-segmented; club setose, 2 × as long as broad, with two procurved sutures obscurely marked. Pronotum with scattered asperities on anterior half, anterior margin with two small tubercles; posterior half reticulate; vestiture mainly consisting of short and longer bristle-like and spatulate setae. Scutellum with plumose setae. Elytral interstriae on disc with regular rows of broad spatulate setae, on declivity setae becomes increasingly broader and confused; strial setae hair-like, recumbent, in single rows. Legs. Protibiae with three denticles on the apical margin.
 Female. Not known.
 Etymology. The Latin nominative adjective carinatus, meaning to have a narrow keel (carinate), refers to the continuous sharp carinae along most of interstriae 7.
 Distribution. South Africa. Only known from the type locality.
description: Published as part of Jordal, Bjarte H., 2021, The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae), pp. 87-106 in Zootaxa 5027 (1) on pages 100-103, DOI: 10.11646/zootaxa.5027.1.4, http://zenodo.org/record/5448108
Effective dose estimation for U.S. Army soldiers undergoing multiple computed tomography scans
Creators: Prins, Robert Dean
Publisher: name: Columbia University
Year: 2011
Subjects: Medical sciences
Diagnostic imaging

description: Diagnosing the severity of blunt trauma injuries is difficult and involves the use of diagnostic radiological scanning. The primary diagnostic radiology modality used for assessing these injuries is computed tomography (CT). CT delivers more radiation dose than other diagnostic scanning modalities. Trauma patients are at an increased risk of radiation induced cancer because of the cumulative dose effects from multiple scanning procedures. Current methods for estimating effective dose, the quantity used to describe the whole body health detriment from radiation, involves the use of published conversion coefficients and procedure specific machine parameters such as dose-length-product based on computed tomography dose index and scan length. Other methods include the use of Monte Carlo simulations based upon the specific machine geometry and radiation source. Unless the requisite machine information is known, the only means of estimating the effective dose is through the use of generic estimates that are published by scientific radiation committees and have a wide range of values. This research addressed a knowledge gap in assigning effective doses from computed tomography when machine parameters knowledge is either unknown or incomplete. The research involved the development of a new method of estimating the effective dose from CT through the use of regression models incorporating the use of patient parameters as opposed to machine specific parameters. This new method was experimentally verified using two adult anthropomorphic phantoms and optically stimulated luminescent dosimeters. The new method was then compared against a real patient population undergoing similar computed tomography scanning procedures. Utilizing statistical procedures, the new method was tested for repeatability and bias against the current conversion coefficient method. The analysis of the new method verifies that the estimation ability is similar to recent research indicating that the older conversion coefficient methods can underestimate the effective dose to the patient by up to 40%. The new method can be used as a retrospective tool for effective dose estimation from CT trauma protocols for a patient population with physical characteristics similar to the U.S. Army Soldier population.
Impact of Network Topology on the Stability of DC Microgrids
Creators: name: Wienand, Julian F.
name: Eidmann, David
name: Kremers, Julian
name: Heitzig, Jobst
name: Hellmann, Frank
name: Kurths, Jürgen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We probe the stability of Watts-Strogatz DC microgrids, in which droop-controlled producers and constant power load consumers are homogeneously distributed and obey Kirchhoff's circuit laws. The concept of survivability is employed to evaluate the system's response to Dirac delta voltage perturbations at single nodes. A fixed point analysis of the power grid model yields that there is only one relevant attractor. Using a set of simulations with random networks we investigate correlations between survivability and three topological network measures: the share of producers in the network and the degree and the average neighbour degree of the perturbed node. Depending on the imposed voltage and current limits, the stability is optimized for low node degrees or a specific share of producers. Based on our findings, we provide an insight into the local dynamics of the perturbed system and derive explicit guidelines for the design of resilient DC power grids.
description: 10 pages, 4 figures. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Chaos and may be found at https://doi.org/10.1063/1.5110348
title: Proposal CF-105 tooling and production programs
Creators: name: A.V. Roe Canada Limited. Aircraft Division
Publisher: name: A.V. Roe Canada Limited. Aircraft Division
Year: 1954
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Supercedes Brochure AD-13 dated May 1954.
description: Remplace la brochure AD-13 datant de mai 1954.
description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
description: Brochure (A.V. Roe Canada Limited), AD-16
FORMATION OF THE BOTTOM-SIMULATING REFLECTOR AND ITS LINK TO VERTICAL FLUID FLOW
Creators: name: Haacke, R. Ross
name: Westbrook, Graham K.
name: Hyndman, Roy D.
Publisher: name: The University of British Columbia
Year: 2008

description: Many places where natural gas hydrate occurs have a regionally extensive, bottom-simulating seismic reflector (BSR) at the base of the gas hydrate stability zone (GHSZ). This reflection marks the top of an underlying free-gas zone (FGZ). Usually, hydrate recycling (that produces gas as the stability field moves upward relative to sediments) is invoked to explain the presence and properties of the sub-BSR FGZ. However, this explanation is not always adequate: FGZs are often thicker in passive-margin environments where hydrate recycling is relatively slow, than in convergent-margin environments where hydrate recycling is relatively fast (e.g. Blake Ridge compared with Cascadia). Furthermore, some areas with thick FGZs and extensive BSRs (e.g. west Svalbard) have similar rates of hydrate recycling to northern Gulf or Mexico, yet the latter has no regional BSR. Here we discuss a gas-forming mechanism that operates in addition to hydrate recycling, and which produces a widespread, regional, BSR when gas is transported upward through the liquid phase; this mechanism is dominant in tectonically passive margins. If the gas-water solubility decreases downward beneath the GHSZ (this occurs where the geothermal gradient and the pressure are relatively high), low rates of upward fluid flow enable pore water to become saturated in a thick layer beneath the GHSZ. The FGZ that this produces achieves a steady-state thickness that is primarily sensitive to the rate of upward fluid flow. Consequently, geophysical observations that constrain the thickness of sub-BSR FGZs can be used to estimate the regional, diffuse, upward fluid flux through natural gas-hydrate systems.
An Accurate Solution for Credit Valuation Adjustment (CVA) and Wrong Way Risk
Creators: name: Xiao, Tim
Publisher: name: figshare
Year: 2020
Subjects: subject: 140207 Financial Economics
subject: FOS: Economics and business

description: This paper presents a Least Square Monte Carlo approach for accurately calculating credit value adjustment (CVA). In contrast to previous studies, the model relies on the probability distribution of a default time/jump rather than the default time itself, as the default time is usually inaccessible. As such, the model can achieve a high order of accuracy with a relatively easy implementation. We find that the valuation of a defaultable derivative is normally determined via backward induction when their payoffs could be positive or negative. Moreover, the model can naturally capture wrong or right way risk.
Diffraction from visible lattice points and k-th power free integers
Creators: name: Baake, Michael
name: Moody, Robert V.
name: Pleasants, Peter A. B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Metric Geometry (math.MG)
subject: Mathematical Physics (math-ph)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove that the set of visible points of any lattice of dimension at least 2 has pure point diffraction spectrum, and we determine the diffraction spectrum explicitly. This settles previous speculation on the exact nature of the diffraction in this situation, see math-ph/9903046 and references therein. Using similar methods we show the same result for the 1-dimensional set of k-th power free integers with k at least 2. Of special interest is the fact that neither of these sets is a Delone set --- each has holes of unbounded inradius. We provide a careful formulation of the mathematical ideas underlying the study of diffraction from infinite point sets.
description: 45 pages, with minor corrections and improvements; dedicated to Ludwig Danzer on the occasion of his 70th birthday
Lanurgus subsulcatus Browne 1970
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Lanurgus
Lanurgus subsulcatus

description: Lanurgus subsulcatus Browne, 1970
(Figs 49, 50, 52, 53, 55, 56)
 Type material. Male holotype: [South Africa] Cape Prov., Swellendam ii. 1932, R.E. Turner coll. Paratype male: Mossel Bay, 15-18. iii. 1922, R.E. Turner coll [both in NHMUK].
 Diagnosis, female. Length 1.5–1.7 mm, 2.5–2.7 × as long as wide, colour black. Scapus with long dorsal spike on its dorsal side, with a long tuft of setae as long as the spike; antennal club with two angulate sutures clearly marked; frons broadly concave, with a small median triangular area just above epistoma with short erect setae and below this area with a peculiar tuft of longer setae reaching near tips of protruding mandibles; declivital interstriae 2 slightly impressed and glabrous; protibiae with three apical denticles. Male identical to female except scapus rounded with few setae, declivity with a pair of rounded nodules.
 Distribution: South Africa.
 New records. South Africa, Cape Prov., Worchester [GIS: -33.67, 19.41], Dec. 1933, R.E. Turner; Cape Prov., Mossel Bay [GIS: -34.16, 22.10], June 1921, R.E. Turner [NHMUK]. Eastern Cape: Alexandria Forest [GIS: - 33.70, 26.35], B. Jordal, leg., 15.xi.2006 #2. Western Cape: Nature’s Valley [GIS: -33.965, 23.562], B. Jordal, leg., 9.xi.2006 #10, ex [Searsia] Rhus chirindensis.
 Biology. Searsia chirindensis (Anacardiaceae) is the first reported host plant for this species. Teneral specimens were produced under bark of 2–4 cm thick branches.
description: Published as part of Jordal, Bjarte H., 2021, The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae), pp. 87-106 in Zootaxa 5027 (1) on page 103, DOI: 10.11646/zootaxa.5027.1.4, http://zenodo.org/record/5448108
Manufacturing Companies in OECD Countries
Creators: name: Leogrande, Angelo
Publisher: name: Zenodo
Year: 2024

description: The number of manufacturing companies in OECD countries grew by an average of 5% between 2005 and 2022. The OECD calculates the number of manufacturing companies in its member countries, covering the period from 2005 to 2022. The data includes micro, small, medium, and large enterprises.
title: Momentum, imitation, and learning
title: evidence from and effects on the U.S. retail industry ; 24th annual international conference, Strategic Management Society, 2004, San Juan, PR
titleType: Subtitle
Creators: name: Boyd, Jens L.
name: Bresser, Rudi K. F.
Publisher: name: Freie Universität Berlin
Year: 2004
Subjects: subject: 300 Sozialwissenschaften::330 Wirtschaft

description: We study the occurrence and performance effects of organizational learning in the U.S. retail industry. Six modes of choosing competitive actions are distinguished: momentum, blind imitation, learning from own success, learning from others’ success, risk-related learning, and opportunity-related learning. We find that momentum, blind imitation, and risk- as well as opportunity- related learning are prevalent. Further, the results point to the importance of interorganizational learning. Firms in this industry should have used the past actions of their competitors as a benchmark, but seem to have failed to realize this necessity.
title: Good governance and bad neighbors?
title: The limits of the transformative power of Europe
titleType: Subtitle
Creators: name: Börzel, Tanja A.
name: Hüllen, Vera Van
Publisher: name: Freie Universität Berlin
Year: 2011
Subjects: subject: 300 Sozialwissenschaften::320 Politikwissenschaft

description: 1\. Introduction 6 2\. Membership Matters, but When and How? 7 3\. Zooming into the European Neighborhood: Going Against the Tide? 11 4\. EU External Governance – Does it Make a Difference? 14 5\. Conclusions 17 Literature 19
description: The EU’s Eastern Enlargement is considered to be one of the (few) successful experiments of promoting good – both effective and legitimate – governance. By contrast, the EU’s transformative power appears to be weak or non-existent vis-à-vis its (old) neighbors in the South and its (new) neighbors in the East. Both are not only marked by ‘bad governance’ but also lack a (credible) membership perspective. While the Western Balkans and Turkey have made significant progress towards good governance, both with regard to government effectiveness and democratic legitimacy, the European Neighborhood Countries (ENCs) appear to be stuck in transition or never got that far in the first place. Even when the effectiveness of their governance institutions has improved, they remain well behind the other regions and especially their democratic legitimacy is still wanting or even in decline. The paper shows that there is a correlation between an EU membership perspective and the successful transformation of neighboring countries. Therefore, it has been argued that the ineffectiveness of the European Neighbourhood Policy (ENP) is due to the lack of this ‘golden carrot’. However, we argue that the prospects of EU membership stabilizes rather than drives the move towards effective and legitimate governance in candidate countries. Thus, a membership perspective is unlikely to either turn around negative or speed up positive developments in the EU’s neighborhood. Even if the ENCs received a membership perspective, it would be unlikely to push them significantly towards democratic and effective governance as long as there is no endogenously driven process of change. Given the EU’s preference for stability and state-building, the ENP does not provide an alternative for promoting good governance either. The ENP clearly lacks transformative power and where it might have some domestic impact, it risks consolidating rather than undermining authoritarian regimes by helping to strengthen their capacities for effective governance.
title: EU Security Interests in East Asia
title: Prospects for comprehensive EU - Japan cooperation beyond trade and economics
titleType: Subtitle
Creators: name: Reiterer, Michael
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: 300 Sozialwissenschaften::320 Politikwissenschaft::327 Internationale Beziehungen

description: Over the course of several decades the relationship between Japan and the EU has transformed from one focused on economics and trade into one that is a more comprehensive and ‘strategic partnership‘. This has been built on the EU and Japan sharing common values, principles and interests. It has also grown as a result of globalisation and the new security challenges that both have had to face, although the return of geopolitics could shift relations back towards traditional security. This policy brief focuses on the political and security aspects of the EU-Japan relationship. Given Europe’s links to East Asia, the EU has a stake in East Asia‘s security in much the same way as East Asia has a stake in the security of Europe. This policy brief therefore asks whether Japan is a genuine partner for the EU in managing relations with the broader region of East Asia and whether Japan regards the EU to be a genuine strategic partner.
The Chemical Composition of the 30 Doradus Nebula Derived from VLT Echelle Spectrophotometry
Creators: name: Peimbert, Antonio
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Echelle spectrophotometry of the 30 Doradus nebula in the LMC is presented. The data consists of VLT UVES observations in the 3100 to 10350 A range. The intensities of 366 emission lines have been measured, including 269 identified permitted lines of H 0, He 0, C 0, C+, N+, N++, O 0, O+, Ne 0, Ne+, S+, S++, Si 0 , Si+, Si++, Ar+, and Mg+. Electron temperatures and densities have been determined using different line intensity ratios. The He+, C++, O+, and O++ ionic abundances have been derived from recombination lines, these abundances are almost independent of the temperature structure of the nebula. Alternatively abundances from collisionally excited lines have been derived for a large number of ions of different elements, these abundances depend strongly on the temperature structure. Accurate t^2 values have been derived from the Balmer continuum, and by comparing the C++, O+, and O++ ionic abundances obtained from collisionally excited and recombination lines. The chemical composition of 30 Doradus is compared with those of Galactic and extragalactic HII regions. The values of Delta Y / Delta O, Delta Y / Delta Z, and Yp are also discussed.
description: 37 pages, 2 figures, submitted to the Astrophysical Journal
Surface terms in the effective actions via duality constraints
Creators: name: Garousi, Mohammad R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The effective action of string theory on a spacetime manifold with boundary has both bulk and boundary terms. We propose that both bulk and boundary actions, may be found by imposing the effective action to be invariant under the gauge transformations and under the string dualities. Using this proposal at the leading order of $α'$, the standard Gibbons-Hawking-York boundary term is reproduced.
description: 9 pages, Latex file, no figure
Numerical methods for non-LTE line radiative transfer: Performance and convergence characteristics
Creators: name: van Zadelhoff, G. -J.
name: Dullemond, C. P.
name: van der Tak, F. F. S.
name: Yates, J. A.
name: Doty, S. D.
name: Ossenkopf, V.
name: Hogerheijde, M. R.
name: Juvela, M.
name: Wiesemeyer, H.
name: Schoeier, F. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Comparison is made between a number of independent computer programs for radiative transfer in molecular rotational lines. The test models are spherically symmetric circumstellar envelopes with a given density and temperature profile. The first two test models have a simple power law density distribution, constant temperature and a fictive 2-level molecule, while the other two test models consist of an inside-out collapsing envelope observed in rotational transitions of HCO+. For the 2-level molecule test problems all codes agree well to within 0.2%, comparable to the accuracy of the individual codes, for low optical depth and up to 2% for high optical depths (tau=4800). The problem of the collapsing cloud in HCO+ has a larger spread in results, ranging up to 12% for the J=4 population. The spread is largest at the radius where the transition from collisional to radiative excitation occurs. The resulting line profiles for the HCO+ J=4-3 transition agree to within 10%, i.e., within the calibration accuracy of most current telescopes. The comparison project and the results described in this paper provide a benchmark for future code development, and give an indication of the typical accuracy of present day calculations of molecular line transfer.
description: Accepted for publication in A&A
A Unique Multi-Messenger Signal of QCD Axion Dark Matter
Creators: name: Edwards, Thomas D. P.
name: Chianese, Marco
name: Kavanagh, Bradley J.
name: Nissanke, Samaya M.
name: Weniger, Christoph
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a multi-messenger probe of QCD axion Dark Matter based on observations of black hole-neutron star binary inspirals. It is suggested that a dense Dark Matter spike may grow around intermediate mass black holes ($10^{3}-10^{5} \mathrm{\,M_{\odot}}$). The presence of such a spike produces two unique effects: a distinct phase shift in the gravitational wave strain during the inspiral and an enhancement of the radio emission due to the resonant axion-photon conversion occurring in the neutron star magnetosphere throughout the inspiral and merger. Remarkably, the observation of the gravitational wave signal can be used to infer the Dark Matter density and, consequently, to predict the radio emission. We study the projected reach of the LISA interferometer and next-generation radio telescopes such as the Square Kilometre Array. Given a sufficiently nearby system, such observations will potentially allow for the detection of QCD axion Dark Matter in the mass range $10^{-7}\,\mathrm{eV}$ to $10^{-5}\,\mathrm{eV}$.
description: 5 pages, 3 figures. Appendix added with additional figures. Updated to published version
title: Outside In: Human/Garden Relationships Explored in Lithograph Prints
Creators: name: Hoare, Domenica C
Publisher: name: Griffith University
Year: 2020
Subjects: subject: lithograph prints
subject: studio-based research
subject: human/garden relationships

description: Outside In is an exhibition of original lithograph prints arising out of a studio-based research project into how print can capture the nuances of contemporary human/garden relationships in the local environment of Brisbane. The lithographs depict various representations of local gardens; gardens created in a range of ways; and human interactions with these. The works displayed result from a process of critical reflection and creative response in action that finds possibilities in printmaking to highlight ways of seeing gardens in prints. This critical exegesis that accompanies the exhibition draws from the work of theorists George Seddon and Val Plumwood, garden designer William Robinson, author Penelope Lively and philosopher Damon Young. The exegesis also provides discussion of works by four print artists who explore garden themes in their work, namely Virgil Marti, William Morris, Maija Isola, and Édouard Vuillard. Within this framework, the research outcome is in the form of an exhibition of original prints that engage ideas about humans’ relationships with gardens.
Structure-adaptive manifold estimation
Creators: name: Puchkin, Nikita
name: Spokoiny, Vladimir
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62G05, 62H12

description: We consider a problem of manifold estimation from noisy observations. Many manifold learning procedures locally approximate a manifold by a weighted average over a small neighborhood. However, in the presence of large noise, the assigned weights become so corrupted that the averaged estimate shows very poor performance. We suggest a structure-adaptive procedure, which simultaneously reconstructs a smooth manifold and estimates projections of the point cloud onto this manifold. The proposed approach iteratively refines the weights on each step, using the structural information obtained at previous steps. After several iterations, we obtain nearly "oracle" weights, so that the final estimates are nearly efficient even in the presence of relatively large noise. In our theoretical study, we establish tight lower and upper bounds proving asymptotic optimality of the method for manifold estimation under the Hausdorff loss, provided that the noise degrades to zero fast enough.
description: 62 pages, 2 tables, 3 figures
Additional file 1 of Deciphering the pharmacological mechanisms of Fraxini Cortex for ulcerative colitis treatment based on network pharmacology and in vivo studies
Creators: name: Wang, Tianming
name: Su, Xuyang
name: Peng, Jing
name: Tan, Xiaofen
name: Yang, Guangshan
name: Zhang, Tengyue
name: Chen, Feng
name: Wang, Changzhong
name: Ma, Kelong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: Additional file 1: Figure S1. Therapeutic effects of FC on DSS-induced colitis. A. HE staining of colon tissues (200×, scale bar, 200 μm); B. Histological score. Data are presented as the mean ± SD (n = 10). *P < 0.05 versus model group. Figure S2. Schematic graph of animal experiment. Figure S3. GEO datasets processing. (A) The boxplot of the normalized data. The x-axis represents samples and the y-axis represents the expression values. (B) PCA results before batch removal for multiple datasets. (C) PCA results after batch removal. Figure S4. Representative picture of the colon (n = 10).
title: Elites, the Tax System and Inequality in Chile
title: Background and Perspectives
titleType: Subtitle
Creators: name: Atria, Jorge
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: inequality
subject: Chilean tax system
subject: elites
subject: tax evasion and avoidance
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: The tax and benefits system has little influence on redistributing income in Chile, making reduction of inequality more difficult due to insufficient tax collection, several exemptions and problems of evasion and avoidance. This work explores some of the main features of the Chilean tax system, particularly tax evasion and tax avoidance among the elite, because they contribute more (at least in absolute terms) with their tax payments, they also have the highest levels of information (or the resources to get it), and a greater interest in and more knowledge regarding the payment of taxes. This motivates for example the use of tax advisory services. In addition, the influence of economic groups permits the reproduction of a tax system with several regressive elements. A broader perspective is suggested, considering the role of institutions, discourses and everyday practices, in order to explore whether the Chilean tax system contributes reproducing a privileged position for the elite, with consequences on progressivity, and legitimizing a reductionist vision of taxes, that avoids considerations about social inequality.
Additional file 3 of Deciphering the pharmacological mechanisms of Fraxini Cortex for ulcerative colitis treatment based on network pharmacology and in vivo studies
Creators: name: Wang, Tianming
name: Su, Xuyang
name: Peng, Jing
name: Tan, Xiaofen
name: Yang, Guangshan
name: Zhang, Tengyue
name: Chen, Feng
name: Wang, Changzhong
name: Ma, Kelong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: Additional file 3.
Normal all pseudo-Anosov subgroups of mapping class groups
Creators: name: Whittlesey, Kim
Publisher: name: arXiv
Year: 1999
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M60, 20F36, 57N05

description: We construct the first known examples of nontrivial, normal, all pseudo-Anosov subgroups of mapping class groups of surfaces. Specifically, we construct such subgroups for the closed genus two surface and for the sphere with five or more punctures. Using the branched covering of the genus two surface over the sphere and results of Birman and Hilden, we prove that a reducible mapping class of the genus two surface projects to a reducible mapping class on the sphere with six punctures. The construction introduces "Brunnian" mapping classes of the sphere, which are analogous to Brunnian links.
description: Published in Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol4/paper10.abs.html
Some minimal degree Vassiliev invariants not realizable by the Homfly and Kauffman polynomial
Creators: name: Stoimenow, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: We collect some examples showing that some Vassiliev invariants are not obtainable from the HOMFLY and Kauffman polynomials in the real sense, namely, that they distinguish knots not distinguishable by the HOMFLY and/or Kauffman polynomial.
description: 4 pages, 4 figures
Abelian periods of factors of Sturmian words
Creators: name: Peltomäki, Jarkko
Publisher: name: arXiv
Year: 2019
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Number Theory (math.NT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68R15, 11A55

description: We study the abelian period sets of Sturmian words, which are codings of irrational rotations on a one-dimensional torus. The main result states that the minimum abelian period of a factor of a Sturmian word of angle $α$ with continued fraction expansion $[0; a_1, a_2, \ldots]$ is either $tq_k$ with $1 \leq t \leq a_{k+1}$ (a multiple of a denominator $q_k$ of a convergent of $α$) or $q_{k,\ell}$ (a denominator $q_{k,\ell}$ of a semiconvergent of $α$). This result generalizes a result of Fici et. al stating that the abelian period set of the Fibonacci word is the set of Fibonacci numbers. A characterization of the Fibonacci word in terms of its abelian period set is obtained as a corollary.
description: 27 pages, 3 figures