cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Transdisziplinarität in der Energieforschung – Das Energie-Forschungszentrum Niedersachsen als Brücke zur Transdisziplinarität?
Creators: name: Beck, Hans-Peter
name: Springmann, Jens-Peter
Publisher: name: Cramer
Year: 2008
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 62

description: Die fortschreitende Verknappung der Energieressourcen wird die Menschheit zukünftig vor immer größere Herausforderungen stellen, den immer weiter ansteigenden Energiebedarf auch zukünftig nachhaltig zu decken. Diese Herausforderung ist keineswegs trivial und lässt sich im wissenschaftlichen Bereich nicht separieren und durch einzelne Fachdisziplinen allein lösen. Vielmehr bedarf es hierzu einer anderen Organisation der wissenschaftlichen Zusammenarbeit, um durch eine dauerhafte, die einzelnen Disziplinen integrierende sogenannte transdisziplinäre Zusammenarbeit adäquate Lösungen entwickeln zu können. Das Energie-Forschungszentrum Niedersachen (EFZN) strebt diesem Ansatz folgend Lösungsbeiträge zur Entwicklung nachhaltiger technisch sinnvoller, ökonomisch tragfähiger und sozial akzeptierbarer Energiesysteme an. Der vorliegende Aufsatz skizziert die wissenschaftstheoretischen Hintergründe und die Notwendigkeit eines Umschwenkens der wissenschaftlichen Arbeitsweise hin zu einer transdisziplinären. Anhand eines konkreten Forschungsprojektes, das im Vorlauf der Errichtung des EFZN an der Technischen Universität Clausthal durchgeführt wurde, wird aufgezeigt, dass sich zahlreiche hochkomplexe Fragestellungen adäquat nur im organisierten und lokal konzentrierten Verbund verschiedener Forschungsdisziplinen lösen lassen.
Sida schimperiana A. Rich.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Sida
Sida schimperiana

description: Sida schimperiana Hochst. ex A.Rich.  —
Habit: Shrub.
Habitat: LMDF; up to 2 700 m. Distribution: II.
Voucher: N/A.
Reference: Fries & Fries (1924).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 63, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Ordering kinetics in an fcc A_3B binary alloy model: Monte Carlo studies
Creators: name: Kessler, M.
name: Dieterich, W.
name: Majhofer, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using an atom-vacancy exchange algorithm, we investigate the kinetics of the order-disorder transition in an fcc A_3B binary alloy model following a temperature quench from the disordered phase. We observe two clearly distinct ordering scenarios depending on whether the final temperature T_f falls above or below the ordering spinodal T_{sp}, which is deduced from simulations at equilibrium. For shallow quenches (T_f>T_{sp}) we identify an incubation time tau_{inc} which characterizes the onset of ordering through the formation of overcritical ordered nuclei. The algorithm we use together with experimental information on tracer diffusion in Cu_3Au alloys allows us to estimate the physical time scale connected with tau_{inc} in that material. Deep quenches, T_f
description: 9 pages, 8 figures, submitted to Phys. Rev. B
title: BepiColombo - Zur Genese eines Weltraumprojektes
Creators: name: Glassmeier, Karl-Heinz
Publisher: name: Cramer
Year: 2008
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 62

description: Reisen in den Weltraum sind nicht nur weite Reisen, sondern fordern auch Zeit. Für den Sommer 2013 planen die europäische Weltraumagentur ESA und ihr japanischer Partner JAXA den Start zweier Satelliten, die sechs Jahre später in eine Umlaufbahn um den Planeten Merkur einschwenken sollen, um dort mindestens zwei Jahre den der Sonne nächsten Planeten unseres Sonnensystem wissenschaftlich zu erkunden. Die ersten Planungen für dieses Projekt gehen auf Überlegungen Mitte der achtziger Jahre des vergangenen Jahrhunderts zurück. Wenn also die BepiColombo-Raumschiffe 2021 ihre Mission erfüllt haben, dann sind mehr als 30 Jahre vergangen, während derer sich die europäische Wissenschaftsgemeinde mit der Planung und Realisierung einer Merkurmission beschäftigt hat. Die BepiColombo-Mission ist somit ein Beispiel wissenschaftlicher Großforschung, für das nicht nur politische und finanzielle, wissenschaftliche und technische Probleme zu lösen waren, sondern für das auch über mindestens eine Wissenschaftlergeneration hinweg Kontinuität in der Projektabwicklung zu fordern ist.
Gnidia glauca Gilg
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Thymelaeaceae
Gnidia
Gnidia glauca

description: Gnidia glauca (Fresen.) Gilg  —
Habit: Small tree.
Habitat: LMDF, BZ, UMF; 1 400–3 400 m. Distribution: II.
 Voucher: Timau Track, Alt. 3008 m, 20 Jan. 2015, SAJIT 002397 (HIB).
References: Fries (1923a), Peterson (1978), Bussmann (1993, 1994, 2001), Bussmann & Beck (1995a, 1998, 1999), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 63, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
title: Geoinformatik – aktuelle Forschungsfragen
Creators: name: Sester, Monika
Publisher: name: Cramer
Year: 2008
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 00
subject: 91

description: Geoinformatik beschäftigt sich mit der Erfassung, Verwaltung und Analyse raumbezogener Daten und Informationen. Damit hat sie viele Berührungspunkte zu Nachbardisziplinen wie Informatik, Geodäsie, Kartographie, Geographie aber auch Mathematik. Im Beitrag werden schlaglichtartig aktuelle Forschungsfragen beleuchtet und anhand von Arbeiten am Institut für Kartographie und Geoinformatik dargestellt.
A Simple Model of Superconducting Vortex Avalanches
Creators: name: Bassler, Kevin E.
name: Paczuski, Maya
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We introduce a simple lattice model of superconducting vortices driven by repulsive interactions through a random pinning potential. The model describes the behavior at the scale of the London length lambda or larger. It self-organizes to a critical state, characterized by a constant flux density gradient, where the activity takes place in terms of avalanches spanning all length scales up to the system size. We determine scaling relations as well as four universal critical exponents for avalanche moments and durations: tau = 1.63 +/- 0.02, D = 2.7 +/- 0.1, z = 1.5 +/- 0.1, and tau_t = 2.13 +/- 0.14, for the system driven at the boundary.
description: 4 pages, 4 postscript figures included, minor revisions
Processional Cross. Burgos. Virginia Museum of Fine Arts (Richmond, USA). Nostra et Mundi. 159
Creators: name: Escalera Fernández, Isabel
Publisher: name: Zenodo
Year: 2025

description: This entry is part of the Nostra et Mundi catalogue (https://nostraetmundi.com/), a research project coordinated by María José Martínez Ruiz (University of Valladolid) and funded by the Castilla y León Foundation.
Second class particles as microscopic characteristics in totally asymmetric nearest-neighbor K-exclusion processes
Creators: name: Seppalainen, Timo
Publisher: name: arXiv
Year: 2000
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35; 82C22

description: We study aspects of the hydrodynamics of one-dimensional totally asymmetric K-exclusion, building on the hydrodynamic limit of Seppalainen (1999). We prove that the weak solution chosen by the particle system is the unique one with maximal current past any fixed location. A uniqueness result is needed because we can prove neither differentiability nor strict concavity of the flux function, so we cannot use the Lax-Oleinik formula or jump conditions to define entropy solutions. Next we prove laws of large numbers for a second class particle in K-exclusion. The macroscopic trajectories of second class particles are characteristics and shocks of the conservation law for the particle density. In particular, we extend to K-exclusion Ferrari's result that the second class particle follows a macroscopic shock in the Riemann solution. The technical novelty of the proofs is a variational representation for the position of a second class particle, in the context of the variational coupling method.
description: 32 pages
Maerua triphylla var. johannis DeWolf
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Brassicales
Capparaceae
Maerua
Maerua triphylla
Maerua triphylla a.rich. var. johannis (volkens & gilg) dewolf

description: Maerua triphylla A.Rich. var. johannis (Volkens & Gilg) DeWolf  —
Habit: Shrub or small tree.
Habitat: LMWF, LMDF; up to 2 300 m. Distribution: II.
 Voucher: Near Lake Nkunga, Alt. 1 900 m, 8 Aug. 2015, SAJIT 003817 (HIB).
Reference: Fries & Fries (1927b).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 64, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Possible Phases of the Two-Dimensional t-t' Hubbard Model
Creators: name: Hankevych, V.
name: Wegner, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a stability analysis of the 2D t-t' Hubbard model on a square lattice for various values of the next-nearest-neighbor hopping t' and electron concentration. Using the free energy expression, derived by means of the flow equations method, we have performed numerical calculation for the various representations under the point group C_{4ν} in order to determine at which temperature symmetry broken phases become more favorable than the symmetric phase. A surprisingly large number of phases has been observed. Some of them have an order parameter with many nodes in k-space. Commonly discussed types of order found by us are antiferromagnetism, d_{x^2-y^2}-wave singlet superconductivity, d-wave Pomeranchuk instability and flux phase. A few instabilities newly observed are a triplet analog of the flux phase, a particle-hole instability of p-type symmetry in the triplet channel which gives rise to a phase of magnetic currents, an s*-magnetic phase, a g-wave Pomeranchuk instability and the band splitting phase with p-wave character. Other weaker instabilities are found also. A comparison with experiments is made.
description: revised version according to the referee remarks
Optical analog of particle production in gravitational fields
Creators: name: Smolyaninov, Igor I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Strong enough electric field is predicted to spontaneously create electron-positron pairs in vacuum via Schwinger effect. A somewhat similar effect is predicted to occur in sufficiently strong inhomogeneous gravitational fields. However, due to necessity of very large field strength, these effects were never observed in the experiment. Here we demonstrate that optical analogs of very strong gravitational fields (up to ~10^24 g) and very strong gravitational field gradients (up to ~10^31 s-2) may be created in electromagnetic metamaterial waveguides, leading to an optical analog of particle production in gravitational fields. Such waveguide geometries may also potentially be used to search for axion-like particles weakly interacting with electromagnetic field.
description: 24 pages, 5 figures
School Closure in New York City
Creators: Silander, Megan Reilly
Publisher: name: Columbia University
Year: 2012
Subjects: Public school closings
Public school closings--Law and legislation
School districts--Law and legislation
Low-performing schools
School closings
Education and state
School management and organization

description: School districts and states have increasingly abandoned traditional school reform efforts in favor of simply closing low-performing schools. This movement reflects growing frustration among policymakers with the disappointing effects of previous school improvement policies, and the view that some schools may simply lack the capacity to undertake meaningful improvements. This paper focuses on arguably the most aggressive school closure policies in the nation--those in New York City. Over the past decade, New York City has closed over 100 schools. Using a longitudinal database of students and schools, I explore the implementation and effects of closure and reconstitution of middle schools in New York City, and assess the links between school closure and student academic development and behavior. My descriptive findings indicate that schools selected for closure have significantly lower school-average state test score exams and lower attendance rates compared to other middle schools for several years prior to closure, and that students who attend these schools are almost exclusively Hispanic and Black, more likely to come from low-income families, and more mobile than other middle school students in the district. I also find that students enter these middle schools already at a significant academic disadvantage. I examine characteristics of the reconstituted schools that replace the closed schools, and find that in terms of demographics, reconstituted schools enroll students similar to those served by the closed schools that they replaced. However, the reconstituted schools serve higher performing students with fewer absences and tardies in the year prior to enrolling in middle school. To assess the impact of school closure on student academic outcomes, I use propensity-score matching within a difference-in-differences framework. I find a small, positive effect of school closure on student test scores and rates of absences. As a robustness check, I conduct a second set of analyses using student fixed-effects models that produced similar results: students learn slightly less at chronically underperforming schools, compared to what would have happened had they attended an alternate school. School closure appears to be a somewhat effective in improving student academic outcomes. It is not clear, however, whether the policy is efficient given the small effects and the considerable disruption associated with the policy. Future research should examine the fiscal costs associated with closure, compared to costs of other policies with similar effects.
Transmission and Scattering of a Lorentz Gas on a Slab
Creators: name: Larralde, Hernan
name: Leyvraz, Francois
name: Martinez-Mekler, Gustavo
name: Rechtman, Raul
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We perform numerical scattering experiments on a Lorentz array of disks centered on a triangular lattice with L columns and study its transmission and reflection properties. In the finite horizon case, the motion of the particles may be modeled as simple one dimensional random walks with absorbing walls for which the scaling of the transmission and reflection coefficients are known, and agree with those found numerically. In the infinite horizon case the analogy with a simple diffusive process is no longer valid. In this case we compare our results with those expected for a one dimensional Levy walk, again with absorbing walls, for which logarithmic corrections to the scaling relations appear. The scaling with L and the symmetry properties of the forward and the backward are also studied, and some of their salient features are discussed.
description: Postscript file, 8 pages including 9 figures
School Choice Overseas: Are Parents Citizens or Consumers?
Creators: Park, Daekwon
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Education and state
subject: School management and organization
subject: Political science
subject: FOS: Political science
subject: Koreans--Education

description: Currently, some Korean parents are educating their children in primary and secondary schools in foreign countries even though Korean schools demonstrate high performance as confirmed by the Programme for International Student Assessment (PISA) Report. Using Hirschman's (1970) framework of "exit" and "voice," this study investigated characteristics of exiting parents and their reasons for educating their child(ren) in foreign schools. This study also examined the organizational, political and educational context of Korea, including the High School Equalization Policy (HSEP), private tutoring, change in the study abroad law, and the role these play in leading some families to leave their domestic local schools. A survey questionnaire was administered to two groups of parents - parents whose children attend school domestically (staying parents) and parents whose children attend school abroad (exiting parents). Purposive sampling was implemented for data collection. Analysis employed logistic regression to assess which factors significantly contributed to the decision to exit or to stay. This study's finding confirmed Hirschman's argument that exit may increase when opportunities for voice are limited. Before choosing schools in foreign countries, exiting Korean parents expressed their voice more actively at the school level than did staying parents. While exiting parents were prone to speak directly to the teachers, principals, and school staff at the school level, staying parents were more likely to vocalize their voice through city and national level elections by actively demonstrating political action by casting ballots. Staying parents were more likely to choose their children's school by residential choice. In evaluating Korean schools, exiting parents gave lower marks to the local schools where their children attended while scoring Korean schools in general higher.
Improving the Numerical Efficiency of a High Accuracy Shell Element for Soft Tissues
Creators: name: Abu Sharkh, Abdal Aziz
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Soft tissues
Matlab
Numerical
FEA

description: For the finite element (FE) simulation of relatively thin organs under complex dynamic loadings that are relevant in the biomedical engineering field, shell elements, compared to volume elements, have the potential to capture the whole thickness of the organ at once. Shell elements, are also known to feature efficiently large critical time steps, ensuring competitive computational times in dynamic structural analysis projects. As an improvement to the tools available for modelling and analysis, a new general nonlinear thick continuum-based (CB) shell FE embedded in an updated Lagrangian formulation and an explicit time integration scheme was recently developed. It can account for irregular and complex geometries, and hyper-elastic, large, nearly incompressible anisotropic 3D deformations characteristic of soft tissues. The original proof of concept was developed in MATLAB, which despite known advantages, is very slow. As a result, computational times, even for simple problems, have not been competitive. Therefore, the present work focused on re-writing the code in an efficient programming language with execution speed in mind in order to compete with the available elements which, in spite of having inferior capabilities, have better running times. In addition, a programming algorithm was needed to improve running time. Once it was implemented, the running time was reduced in half on a benchmark problem. Optimization was then exploited to introduce workarounds and design improvements that reduced running time further to 95% of its original value. The new version of the code was implemented in C++ and reached the goal of reducing running time while maintaining the expected functionality.
The Preheating - Gravitational Wave Correspondence
Creators: name: Bassett, Bruce A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The gravitational wave equations form a parametric resonance system during oscillatory reheating after inflation, when cast in terms of the electric and magnetic parts of the Weyl tensor. This is in direct analogy with preheating. For chaotic inflation with a quadratic potential, this analogy is exact. The resulting amplification of the gravitational wave spectrum begins in the broad resonance regime for chaotic inflation but quickly moves towards narrow resonance. This increases the amplitude and breaks the scale invariance of the tensor spectrum generated during inflation, an effect which may be detectable. The parametric amplification is absent, however, in 1st-order phase transition models and "warm" inflationary models with continuous entropy production.
description: 10 pages, Revtex, 3 ps figures. Matched to published version
School as a Place of Leisure: Reconceiving Leisure with Dewey’s Qualitative Thinking
Creators: Kwon, Yeong Min
Publisher: name: Columbia University
Year: 2018
Subjects: Educational philosophy
Leisure
Education

description: This study aims to reconceive the meaning of leisure in school using John Dewey’s theory of education. Though the English word “school” and the Greek word “scholé,” which means leisure, are etymologically related, it is almost impossible to find any relationship between them in contemporary schools. Posed differently, for modern people school is not a place of leisure any more. Modern people understand leisure as a time not to work, as an escape from work. However, for the ancients leisure was a very sacred activity through which they could find their true identity. Therefore, in considering the original meaning of the term leisure, reviving leisure in school means to make a classroom sacred. For Dewey, the necessity for the teacher to provide an appropriate educational environment for the development of a student’s potential is no less sacred than the duties of a priest. This kind of inquiry can help contemporary educators revitalize the deepest meanings in the project of education.
The modularity conjecture for rigid Calabi-Yau threefolds over Q
Creators: name: Saito, Masa-Hiko
name: Yui, Noriko
Publisher: name: arXiv
Year: 2000
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14J32,11F11, 11F80, 11G18, 14K30

description: We formulate the modularity conjecture for rigid Calabi-Yau threefolds defined over the field Q of rational numbers. We establish the modularity for the rigid Calabi-Yau threefold arising from the root lattice A_3. Our proof is based on geometric analysis.
description: 16 pages, latex, minor corrections. references added
Quantum Monte Carlo study of the 3D-1D crossover for a trapped Bose gas
Creators: name: Astrakharchik, G. E.
name: Giorgini, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We investigate the cross-over from three to one dimension in a Bose gas confined in highly anisotropic traps. By using Quantum Monte-Carlo techniques, we solve the many-body Schrodinger equation for the ground state and obtain exact results for the energy per particle and the mean square radii of the cloud in the transverse and longitudinal direction. Results are compared with the predictions of mean-field theory obtained from the Gross-Pitaevskii equation and with the 1D Lieb-Liniger equation of state. We explicitly prove the occurrence of important beyond mean-field effects, including the appearance of Fermi-like properties as the system enters the Tonks gas regime.
description: 6 pages, 9 figures
School Teachers’ Knowledge and Self-Efficacy for Performing Behaviors Recommended for Work with Diverse Students: Exploring Microaggressions, Cultural Humility, Perceived Racism, and Coping as Predictors of School Climate
Creators: LeeHim, Renée
Publisher: name: Columbia University
Year: 2021
Subjects: Multicultural education
Teacher-student relationships
Microaggressions
High school students--Attitudes

description: There is a need for professional development for teachers that equips them for working with diverse students and creating supportive school climates. This pilot study (N=55) with K-12 teachers sought to identify predictors of a high school climate rating. The teachers were 78.2% (N=43) female, 81.8% U.S. born (N=45), 45.5% White (N=25), 30.9% Black (N=17), 14.5% Latinx (N=8), and 7.3% Asian (N=3). The teachers had moderately high knowledge and closest to moderately high self-efficacy for performing key behaviors deemed essential for working effectively with diverse students. Teachers reported experiencing (pre-pandemic) a school climate closest to moderately supporting, engaging, valuing, fairly disciplining, affirming, reflecting empathy for, and serving as a safe space for students from varied cultural backgrounds. Findings showed that about half the teachers or more had any experience of microaggressions that seemed related to their personal demographics or appearance while in school settings—pre-pandemic. Further, about three-quarters of teachers or more had any experience of witnessing microaggressions happening to students in school settings, pre-pandemic.
Revegetation with locally harvested native plant seeds at the abandoned Atlin Ruffner Mine
Creators: name: Stuckless, Brad
name: Brillinger, Derek
name: Whitehead-Delong, Lily
name: Tannas, Steven
Publisher: name: The University of British Columbia
Year: 2024

description: The Atlin Ruffner Mill and Tailings Site has undergone extensive remediation of contaminants related to metal ore extraction, ore processing, and tailings storage. Remediation was implemented to mitigate risks to human health and the environment. Following a comprehensive vegetation survey, a revegetation plan was developed with the goal of re-establishing vegetative cover over the mine disturbance footprint. The challenging site conditions (i.e. cold, dry, short growing season and low nutrient concentrations) favoured the use of native plant species that were adapted to the local environment with the goal of expediting ecological recovery and preserving the structural integrity of the clean soil cover and steep slopes. Revegetation activities were meticulously planned and executed over a period of several years, including several rounds of seed collection, off-site stratification, and greenhouse propagation prior to on-site planting. Initial plans included Dryas integrifolia subsp. integrifolia, Lupinus nootkatensis var. nootkatensis, and Saxifraga tricuspidata. A comprehensive monitoring framework was established to assess the success of revegetation efforts and inform adaptive management actions, if required. The monitoring results revealed varying degrees of plant success across different revegetation areas and identified two additional species (Sedum lanceolatum and Oxytropis campestris var. spicata) that were thriving and judged to be compatible with revegetation objectives. Some areas showed promising plant establishment and survival, while others indicated a need for further intervention and supplemental planting. The data collected from the monitoring program provided valuable insights into the effectiveness of the revegetation efforts and informed adaptive management opportunities. Areas with higher shelter showed better plant survival, suggesting that cover plays a significant role in the success of newly planted species. The presence of native species and the absence of invasive species indicates a positive trajectory. Targeted infill planting and continued vigilance is recommended to address threats to the remedial infrastructure.
Honor and Shame -- Purity and Ritual
Creators: name: Williams, Jonathan
Publisher: name: Zenodo
Year: 2018
Subjects: Jesus, healing, Sabbath, Pharisees, honor, shame, ritual, purity, order, religious boundaries

description: Jesus heals a man on the Sabbath, but the religious authorities want to kill him for what he did. Why would they resort to such violence for an act of kindness to a needy man? In Part 1 of this paper, Jonathan Williams investigates the social phenomena behind their response. In Part 2, Jonathan digs deeper. More than lost honor is at stake. By examining the meaning of purity in the ancient world, one discovers that Jesus was a threat to the purity boundaries that the authorities had painstaking set. The authorities believed he was corrupting the nation. They believed the choice was clear; either destroy him or be destroyed by God.
description: This paper was presented as a partial fulfillment of the PhD program in Biblical Studies at Trinity Seminary. If you would like to interact with the author, he may be reached at jonathan@WGSministries.org.
Schooling the Master: Caste Supremacy and American Education in British Ceylon, 1795–1855
Creators: Balmforth, Mark Edward
Publisher: name: Columbia University
Year: 2020
Subjects: South Asians
Religion
History
Nineteenth century
Caste
Imperialism--British colonies
Missions

description: Drawing on archival materials, family stories, and student artwork, “Schooling the Master: Caste Supremacy and American Education in British Ceylon, 1795–1855” examines how nineteenth-century American missionary education in South Asia facilitated dominant-caste supremacy while distributing negotiated sensibilities of colonial modernity. The work’s first section explores the arrangement of an educational nexus of mutual benefit between the Jaffna Peninsula’s dominant Veḷḷāḷar caste, the British Ceylonese government, and American Protestant missionaries. I track this nexus from its origins in the veranda school of Tamil Śaiva poet Kūḻaṅkai Tampirāṉ (1699–1795) to its apogee in the American Ceylon Mission boarding schools of the late 1840s. The dissertation’s second part examines two pedagogies of colonial modernity: the embroidery of needlework samplers that taught an American form of gendered domesticity, and map drawing that imparted a geographically specific and American-style national identity. By describing three moments in its development and two pedagogical facets of its career, the dissertation argues that an educational nexus crafted for some Veḷḷāḷars a distinct Jaffna Tamil identity that is geographically bound, gendered, and pervaded by a sense of superiority. This dissertation makes two significant contributions to South Asian studies, first by demonstrating an unexamined arrangement of power in the context of colonialism—the educational nexus—and second, by exploring the way colonial teaching methods in the first half of the nineteenth century transformed South Asian ways of being.
New time-type and space-type non-standard quantum algebras and discrete symmetries
Creators: name: Herranz, Francisco J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Starting from the classical r-matrix of the non-standard (or Jordanian) quantum deformation of the sl(2,R) algebra, new triangular quantum deformations for the real Lie algebras so(2,2), so(3,1) and iso(2,1) are simultaneously constructed by using a graded contraction scheme; these are realized as deformations of conformal algebras of (1+1)-dimensional spacetimes. Time-type and space-type quantum algebras are considered according to the generator that remains primitive after deformation: either the time or the space translation, respectively. Furthermore by introducing differential-difference conformal realizations, these families of quantum algebras are shown to be the symmetry algebras of either a time or a space discretization of (1+1)-dimensional (wave and Laplace) equations on uniform lattices; the relationship with the known Lie symmetry approach to these discrete equations is established by means of twist maps.
description: 17 pages, LaTeX
School-entry Eligibility Effects in Developing Countries
Creators: Morales, Melisa
Publisher: name: Columbia University
Year: 2020
Subjects: Economics
Labor economics
Education and state
School management and organization

description: This dissertation focuses on the exogenously induced discontinuity that is observed in educational indicators as a result of school-entry age regulations. It has been conducted in response to the research gap in low-and-middle-income countries (LMIC) in terms of school-entry law effects. I present three empirical analyses for Peru based on data sets with information on the exact date of birth-- the 2017 Population Census, the National Household Survey (ENAHO), the National Demographics and Health Survey (ENDES), and the 2010 University Student Census. Discontinuity-based estimates shed light on the school eligibility effects on educational attainment, the effect of preschool attendance on maternal labor supply, and the effect of school-entry laws on college enrollment delay.
Schubert's Mythological Mayrhofer-Lieder: Historical, Philosophical, and Psychological Contexts
Creators: Shaw, Michael
Publisher: name: Columbia University
Year: 2014
Subjects: Music
Music--Philosophy and aesthetics

description: 1817 is the beginning of a period in Schubert's life, called his "years of crisis," when he was forming and asserting his personal and musical autonomy. His songs from this time concentrate on mythology and on the poetry of his friend Johann Mayrhofer. Thirteen mythological Mayrhofer-songs sing through the "I" of a mythological character and address a god for aid. This dissertation analyzes seven of these songs: Freiwilliges Versinken, Memnon, Philoktet, Der zürnenden Diana, Atys, Antigone und Oedip, and Der entsühnte Orest.
      Both Mayrhofer's poems and Schubert's songs present difficulties. Mayrhofer's language and treatment of myth occlude his poetry's meaning. Schubert's settings also obscure what they might communicate to readers or listeners through experimental formal, harmonic, and text-setting strategies. To discover the order and meaning behind the abstruse surfaces of the poems, music, and songs, I turn to four analytical perspectives immanent in Mayrhofer's poems. Though mythological on the surface, Mayrhofer's poems tell a Gnostic narrative of man's desire to unite with god. The poems are also masochistic: Mayrhofer's mythological heroes are all in pain, static, and devoted to a goddess. These two simultaneous subtexts exemplify the ambiguity of Mayrhofer's poetry, that it both keeps its meaning indistinct and means many things at once. Mayrhofer's use of mythology and Gnosticism direct us to Carl Jung's use of the same in his psychoanalytic researches into the self.
      Gnosticism, masochism, ambiguity, and the Jungian self are elements of Schubert's songs just as they are elements of Mayrhofer's poems. Each of the dissertation's four main chapters focuses on one of these concepts. In analysis, I give the greatest attention to the music, that is, how the music is Gnostic, masochistic, ambiguous, and psychologically self-expressive. The musical analyses are largely motivic, but also involve musical form, harmony, meter, genre, and vocal style. I understand song as a multiplicity, as an interaction of individual voices. Since each of the four analytical perspectives---as distinct as they are---says something about the relationship between the self and the other, they are means to assess the relationships resulting in song, and how meaning and understanding emerge from the interaction of multiple voices.
Hibiscus macranthus A. Rich.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Hibiscus
Hibiscus macranthus

description: Hibiscus macranthus Hochst. ex A.Rich.  —
Habit: Shrub.
Habitat: LMWF, LMDF; up to 2 500 m. Distribution: II.
 Voucher: Upper Imenti Forest, Alt. 2 234 m, 7 Aug. 2015, SAJIT 003198 (HIB).
References: Fries & Fries (1924), Bussmann (1994), Bussmann & Beck (1995a), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 62, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Upper limit to $Ω_B$ in scalar-tensor gravity theories
Creators: name: Alimi, Jean-Michel
name: Serna, Arturo
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a previous paper (Serna & Alimi 1996), we have pointed out the existence of some particular scalar-tensor gravity theories able to relax the nucleosynthesis constraint on the cosmic baryonic density. In this paper, we present an exhaustive study of primordial nucleosynthesis in the framework of such theories taking into account the currently adopted observational constraints. We show that a wide class of them allows for a baryonic density very close to that needed for the universe closure. This class of theories converges soon enough towards General Relativity and, hence, is compatible with all solar-system and binary pulsar gravitational tests. In other words, we show that primordial nucleosynthesis does not always impose a very stringent bound on the baryon contribution to the density parameter.
description: uuencoded tar-file containing 16 pages, latex with 5 figures, accepted for publication in Astrophysical Journal (Part 1)
Additional file 4 of Genome-wide association analyses of common infections in a large practice-based biobank
Creators: name: Jiang, Lan
name: Kerchberger, V. Eric
name: Shaffer, Christian
name: Dickson, Alyson L.
name: Ormseth, Michelle J.
name: Daniel, Laura L.
name: Leon, Barbara G. Carranza
name: Cox, Nancy J.
name: Chung, Cecilia P.
name: Wei, Wei-Qi
name: Stein, C. Michael
name: Feng, QiPing
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Supplementary Figure 2. Manhattan plots and Q-Q plots of GWAS results.
Growth model with restricted surface relaxation
Creators: name: da Silva, T. J.
name: Moreira, J. G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We simulate a growth model with restricted surface relaxation process in d=1 and d=2, where d is the dimensionality of a flat substrate. In this model, each particle can relax on the surface to a local minimum, as the Edwards-Wilkinson linear model, but only within a distance s. If the local minimum is out from this distance, the particle evaporates through a refuse mechanism similar to the Kim-Kosterlitz nonlinear model. In d=1, the growth exponent beta, measured from the temporal behavior of roughness, indicates that in the coarse-grained limit, the linear term of the Kardar-Parisi-Zhang equation dominates in short times (low-roughness) and, in asymptotic times, the nonlinear term prevails. The crossover between linear and nonlinear behaviors occurs in a characteristic time t_c which only depends on the magnitude of the parameter s, related to the nonlinear term. In d=2, we find indications of a similar crossover, that is, logarithmic temporal behavior of roughness in short times and power law behavior in asymptotic times.
Schools as Reform Changers: How Teachers and Administrators in Bishkek, Kyrgyzstan Modify Education Reforms
Creators: Belyavina, Raisa Belyavina
Publisher: name: Columbia University
Year: 2017
Subjects: Education and state
School management and organization
Educational sociology
Education

description: This dissertation examines how teachers and their allies utilize agency and draw on social capital to ignore, modify and altogether undo reforms. Focusing on 10 schools in Bishkek, Kyrgyzstan, this study investigates the mechanisms employed by teachers, principals, and school administrators across the city to counter a single teacher salary reform and maintain the status quo.

This topic is explored in a study combining a mixed methods research methodology that includes analysis of interviews, teacher salary data, policy documents, and observation.  The analysis is framed in theories of social capital, power, and human agency as well as in the application of literature on transnational policy borrowing and lending. Through these theoretical lenses, this research contributes to scholarship on the nature of human agency, the impact of professional vitality and resiliency of conviction on resistance to change, and role that stratification and inequality play in shaping the lives of teachers.

The study illustrates the endurance of longstanding norms and social hierarchies within the teaching workforce in post-Soviet Kyrgyzstan; it shows how salary reforms can challenge longstanding views around teacher compensation norms; and finally, it further advances the argument that the transfer of global teacher policies from one context to another will necessarily result in a process of local adaptation, and one that may yield unintended consequences.
Science Specialists in Urban Elementary Schools: An Ethnography Examining Science Teaching Identity, Motivation and Hierarchy in a High-Stakes Testing Climate
Creators: Ronan, Darcy
Publisher: name: Columbia University
Year: 2014
Subjects: Science--Study and teaching

description: There are few studies exploring the impact and effectiveness of the science specialist model or its implementation specifically in urban schools. This ethnography explores the roles and responsibilities of science specialists in urban elementary schools, drawing upon interviews with the science specialists, classroom teachers, and building administrators to portray the science-teaching identity and characteristics of the science specialists according to Social Identity Theory (Gee, 2000-2001) as well as classroom teacher science-teaching motivation, according to Expectancy Theory (Vroom, 1964). In this role, specialists provide science instruction, curriculum coordination and communication, and support of classroom teachers. The expectations and limits of leadership from the science specialist are also discussed. The use of science specialists to provide pull-out instruction, wherein a classroom teacher drops off her class for instruction by the specialist, results in a decreased sense of classroom teacher instrumentality. This model of science specialist instruction can also undercut other science-teaching motivation components like expectancy of success, science-teaching identity, self-efficacy and valence for science teaching. Science specialist instruction in a pull-out model can result in teacher disengagement from science instruction. Additionally, hierarchies flowing from school and district-level policy and practice are described and analyzed according to how they mediate and are mediated by a science specialist model.
Science and Poetry in Imperial Rome: Manilius, Lucan, and the Aetna
Creators: Glauthier, Patrick
Publisher: name: Columbia University
Year: 2011
Subjects: Civilization, Classical
Classical antiquities

description: This dissertation examines the relationship between scientific inquiry and hexameter poetry at Rome in the first century CE. It focuses on three poetic texts: Manilius' Astronomica, Lucan's Civil War, and the anonymous Aetna. It argues that despite generic and thematic differences, these works participate in a common dialogue and therefore can benefit from being read side by side. In particular, the dissertation demonstrates that all three authors reflect on the ability of poetry to communicate scientific knowledge, and that they simultaneously question or undermine the practical value of that knowledge. As a result, it allows us to see that scientific inquiry itself constitutes a dynamic and multifaceted area of creative literary activity in Early Imperial Rome.
Hibiscus surattensis L.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Hibiscus
Hibiscus surattensis

description: Hibiscus surattensis L.  —
Habit: Herb.
Habitat: LMWF, LMDF; up to 1 700 m. Distribution: I.
 Voucher: Mount Kenya Forest Reserve, Chuka, Kithituni, 2 Nov. 1968, Kimani 113 (EA).
References: Verdcourt & Mwachala (2009), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 62, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Resonant enhanced diffusion in time dependent flow
Creators: name: Castiglione, P.
name: Crisanti, A.
name: Mazzino, A.
name: Vergassola, M.
name: Vulpiani, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Explicit examples of scalar enhanced diffusion due to resonances between different transport mechanisms are presented. Their signature is provided by the sharp and narrow peaks observed in the effective diffusivity coefficients and, in the absence of molecular diffusion, by anomalous transport. For the time-dependent flow considered here, resonances arise between their oscillations in time and either molecular diffusion or a mean flow. The effective diffusivities are calculated using multiscale techniques.
description: 18 latex pages, 11 figures
Kosteletzkya adoensis Mast.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Kosteletzkya
Kosteletzkya adoensis

description: Kosteletzkya adoensis (Hochst. ex A.Rich.) Mast.  —
Habit: Herb.
Habitat: LMWF; up to 2 700 m. Distribution: II.
 Voucher: Chogoria Track, Alt. 2 700 m, 11 Oct. 1985, Beentje 2380B (EA).
References: Fries & Fries (1924), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 62, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
On Closed Einstein-de Sitter Universes
Creators: name: Fagundes, Helio V.
name: Gausmann, Evelise
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We briefly summarize the idea of cosmological models with compact, flat spatial sections. It has been suggested that, because of the COBE satellite's maps of the microwave background, such models cannot be small in the sense of Ellis, and hence are no longer interesting. Here we use Lehoucq et al.'s method of cosmic crystallography to show that these models are physically meaningful even if the size of the spatial sections is of the same order of magnitude as the radius of the observational horizon.
description: 8 pages, 1 figure. Revision includes comment on "top-down" and "bottom-up" pictures of structure formation. Figure is unmodified