cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Economic evaluation of resilience training for medical students: A cohort state-transition model
Creators: name: Dijk, Stijntje W.
name: Krijkamp, Eline
name: Hunink, M. G. Myriam
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Resilience training shows moderate effect in combatting burnout, yet little is known about its cost-effectiveness. This study analyzes the cost-effectiveness of offering resilience training to medical students with elevated stress from a Dutch university medical center (payer) perspective compared to mental health support as usual. We constructed a state-transition cohort (Markov) model to estimate quality-adjusted lifeyears and associated costs of offering resilience training to a cohort of 410 first-year medical students over a 6-year timeframe. Utility values were obtained through baseline data from the DEcrease STress through RESilience training for Students (DESTRESS) study. Data on transition probabilities and the effect of resilience training were based on the best available literature. We resampled all data to generate 10,000 simulations of incremental costs and effects in a probabilistic analysis. On average students gained 0.15 QALYs (95%CI 0.09, 0.20) at a cost-saving of €1076 (95%CI 412, 2008), making resilience training the dominant strategy. These savings resulted from an assumed reduction in study delay due to a reduction in symptoms of stress and burnout. For every euro the university invests in resilience training, we estimatea return of investment of €2.79. This study provides evidence that offering resilience training to medical students is cost-effective and cost-saving.
Chrysotoxum fasciolatum
Creators: name: Mutin, V. A.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Chrysotoxum
Chrysotoxum fasciolatum

description: Chrysotoxum fasciolatum (De Geer, 1776)
MATERIAL EXAMINED. Birandzha Ridge, 12–13.VIII 2020, 2 ♀, OK & DK [FCBV].
description: Published as part of Mutin, V. A., 2021, A list of hover-flies of Bolshoi Shantar Island (the Sea of Okhotsk) with description of a new species of the genus Platycheirus Lepeletier et Serville, 1828 (Diptera: Syrphidae), pp. 1-9 in Far Eastern Entomologist 431 on page 5, DOI: 10.25221/fee.431.1, http://zenodo.org/record/7165788
title: Nachruf Franz Mayinger
Creators: name: :None
Publisher: name: Cuvillier
Year: 2022
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 902

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021Jahrbuch 2021 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021, p. 395
Supplement A
Creators: name: Kappler, Lisa
name: Hoene, Miriam
name: Chunxiu Hu
name: Toerne, Christine Von
name: Li, Jia
name: Bleher, Daniel
name: Hoffmann, Christoph
name: Böhm, Anja
name: Laxmikanth Kollipara
name: Zischka, Hans
name: Königsrainer, Alfred
name: Hans-Ulrich Häring
name: Peter, Andreas
name: Guowang Xu
name: Sickmann, Albert
name: Hauck, Stefanie M.
name: Weigert, Cora
name: Lehmann, Rainer
Publisher: name: figshare
Year: 2019
Subjects: subject: 60101 Analytical Biochemistry
subject: FOS: Biological sciences
subject: 60802 Animal Cell and Molecular Biology
subject: 60109 Proteomics and Intermolecular Interactions (excl. Medical Proteomics)

description: Supplement A containing Supporting Figure A.1 and Supporting Figure A.2 and 3
title: Nachruf Georg Johann Rieger
Creators: name: Hulek, Klaus
Publisher: name: Cuvillier
Year: 2022
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 902

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021Jahrbuch 2021 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021, p. 397
Ultrafast Spin-To-Charge Conversion at the Surface of Topological Insulator Thin Films
Creators: name: Wang, Xinbo
name: Cheng, Liang
name: Zhu, Dapeng
name: Wu, Yang
name: Chen, Mengji
name: Wang, Yi
name: Zhao, Daming
name: Boothroyd, Chris B.
name: Lam, Yeng Ming
name: Zhu, Jian-Xin
name: Battiato, Marco
name: Song, Justin C. W.
name: Yang, Hyunsoo
name: Chia, Elbert E. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strong spin-orbit coupling, resulting in the formation of spin-momentum-locked surface states, endows topological insulators with superior spin-to-charge conversion characteristics, though the dynamics that govern it have remained elusive. Here, we present an all-optical method that enables unprecedented tracking of the ultrafast dynamics of spin-to-charge conversion in a prototypical topological insulator Bi$_2$Se$_3$/ferromagnetic Co heterostructure, down to the sub-picosecond timescale. Compared to pure Bi$_2$Se$_3$ or Co, we observe a giant terahertz emission in the heterostructure than originates from spin-to-charge conversion, in which the topological surface states play a crucial role. We identify a 0.12-picosecond timescale that sets a technological speed limit of spin-to-charge conversion processes in topological insulators. In addition, we show that the spin-to-charge conversion efficiency is temperature independent in Bi$_2$Se$_3$ as expected from the nature of the surface states, paving the way for designing next-generation high-speed opto-spintronic devices based on topological insulators at room temperature.
description: 19 pages, 4 figures
Poisson Multi-Bernoulli Mapping Using Gibbs Sampling
Creators: name: Fatemi, Maryam
name: Granström, Karl
name: Svensson, Lennart
name: Ruiz, Francisco J. R.
name: Hammarstrand, Lars
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper addresses the mapping problem. Using a conjugate prior form, we derive the exact theoretical batch multi-object posterior density of the map given a set of measurements. The landmarks in the map are modeled as extended objects, and the measurements are described as a Poisson process, conditioned on the map. We use a Poisson process prior on the map and prove that the posterior distribution is a hybrid Poisson, multi-Bernoulli mixture distribution. We devise a Gibbs sampling algorithm to sample from the batch multi-object posterior. The proposed method can handle uncertainties in the data associations and the cardinality of the set of landmarks, and is parallelizable, making it suitable for large-scale problems. The performance of the proposed method is evaluated on synthetic data and is shown to outperform a state-of-the-art method.
description: 14 pages, 6 figures
Saving the Body and the Soul: Visualizing the Founding Mothers of the Margaret  Williamson Memorial Hospital
Creators: name: Wang, Xinong
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2024

description: When the Margaret Williamson Memorial Hospital was established by American missionary women in Shanghai, China, in 1884, its two key founding figures were Dr. Elizabeth Reifsnyder and Mrs. Day. This paper uses two contrasting visual depictions of the two women to situate the importance of each woman for Chinese and American audiences. Dr. Reifsnyder, depicted as a symbol of Western medical prowess, highlights the perceived superiority of Western medicine over traditional Chinese practices. In contrast, Mrs. Day embodies the spread of Christianity and Western ideals of civilization to China. Despite their shared dedication to the hospital's mission, their legacies diverge in historical memory, with Dr. Reifsnyder receiving widespread recognition while Mrs. Day remains largely obscure. This paper argues that their differing representations reflect broader cultural constructs of gender, race, and imperialism, underscoring the complex dynamics of power and recognition within missionary endeavors in China during this period.
Met Office MIDAS Quick Start User Guide v1.5
Creators: name: Parton, Graham A
Publisher: name: NERC EDS Centre for Environmental Data Analysis
Year: 2024

description: This document aims to act as a quick-start guide to using the Met Office Integrated Data Archive System (MIDAS) Land and Marine Surface Stations Data (1853-current) dataset collection held in the CEDA archives. This complements information already available on the collection's CEDA data catalogue page. This document gives further information including:

How Station Data are connected in MIDAS (Station source id)

Extracting data into columns in Excel

State indicators

Quality control (QC) guide

Met element name _j
description: An earlier version was previously curated at: http://cedadocs.ceda.ac.uk/1437/ . This item was not refereed before the publication/.
The need to improve information on road user type in National Vital Statistics System mortality data
Creators: name: Mack, Karin A.
name: Hedegaard, Holly
name: Ballesteros, Michael F.
name: Warner, Margaret
name: Eames, James
name: Sauber-Schatz, Erin
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Objectives: Both the National Vital Statistics System (NVSS) and the Fatality Analysis Reporting System (FARS) can be used to examine motor vehicle crash (MVC) deaths. These 2 data systems operate independently, using different methods to collect and code information about the type of vehicle (e.g., car, truck, bus) and road user (e.g., occupant, motorcyclist, pedestrian) involved in an MVC. A substantial proportion of MVC deaths in NVSS are coded as “unspecified” road user, which reduces the utility of the NVSS data for describing burden and identifying prevention measures. This study aimed to describe characteristics of unspecified road user deaths in NVSS to further our understanding of how these groups may be similar to occupant road user deaths. Methods: Using data from 1999 to 2015, we compared NVSS and FARS MVC death counts by road user type, overall and by age group, gender, and year. In addition, we examined factors associated with the categorization of an MVC death as unspecified road user such as state of residence of decedent, type of medical death investigation system, and place of death. Results: The number of MVC occupant deaths in NVSS was smaller than that in FARS in each year and the number of unspecified road user deaths in NVSS was greater than that in FARS. The sum of the number of occupant and unspecified road user deaths in NVSS, however, was approximately equal to the number of FARS occupant deaths. Age group and gender distributions were roughly equivalent for NVSS and FARS occupants and NVSS unspecified road users. Within NVSS, the number of MVC deaths listed as unspecified road user varied across states and over time. Other categories of road users (motorcyclists, pedal cyclists, and pedestrians) were consistent when comparing NVSS and FARS. Conclusions: Our findings suggest that the unspecified road user MVC deaths in NVSS look similar to those of MVC occupants according to selected characteristics. Additional study is needed to identify documentation and reporting challenges in individual states and over time and to identify opportunities for improvement in the coding of road user type in NVSS.
Sabalia barnsi Prout 1918
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Brahmaeidae
Sabalia
Sabalia barnsi

description: Sabalia barnsi Prout, 1918
COMMON NAME(S): Brahmin Moth.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Democratic Republic of Congo, Zambia.
LOCALITY IN ZAMBIA: Karunga River, in Chambezi [now Chambeshi] Valley [Altitude, 4500 ft., or 1371.6 m., asl], in Northern Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: De Prins & De Prins 2022; Prout 1918.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 140, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Met Office MIDAS Quick Start User Guide v1.5
Creators: name: Parton, Graham A
Publisher: name: NERC EDS Centre for Environmental Data Analysis
Year: 2024
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: This document aims to act as a quick-start guide to using the Met Office Integrated Data Archive System (MIDAS) Land and Marine Surface Stations Data (1853-current) dataset collection held in the CEDA archives. This complements information already available on the collection's CEDA data catalogue page. This document gives further information including:

How Station Data are connected in MIDAS (Station source id)

Extracting data into columns in Excel

State indicators

Quality control (QC) guide

Met element name _j
description: An earlier version was previously curated at: http://cedadocs.ceda.ac.uk/1437/ . This item was not refereed before the publication/.
Quantum Spectra and Wave Functions in Terms of Periodic Orbits for Weakly Chaotic Systems
Creators: name: Prange, R. E.
name: Narevich, R.
name: Zaitsev, Oleg
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Special quantum states exist which are quasiclassical quantizations of regions of phase space that are weakly chaotic. In a weakly chaotic region, the orbits are quite regular and remain in the region for some time before escaping and manifesting possible chaotic behavior. Such phase space regions are characterized as being close to periodic orbits of an integrable reference system. The states are often rather striking, and can be concentrated in spatial regions. This leads to possible phenomena. We review some methods we have introduced to characterize such regions and find analytic formulas for the special states and their energies.
description: 9 pages, 8 eps figures
Met Office MIDAS Quick Start User Guide
Creators: name: Parton, Graham A
name: Winfield, Kate
Publisher: name: Centre for Environmental Data Analysis (CEDA)
Year: 2015
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: This document aims to act as a quick-start guide to using the Met Office Integrated Data Archive System (MIDAS) Land and Marine
Surface Stations Data (1853-current) dataset collection held in the CEDA archives.

This complements information already available on the collection's CEDA data catalogue page. This document gives further information including:

*How Station Data are connected in MIDAS (Station source id)
*Extracting data into columns in Excel
*State indicators
*Quality control (QC) guide
*Met element name _j
description: Previously curated at: http://cedadocs.ceda.ac.uk/1437/

The publish date on this item was its original published date.

This item was not refereed before the publication

Main files in this record:
midas_quick_start_user_guide.pdf

Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Dr Graham Parton. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Causality and Cosmic Inflation
Creators: name: Vachaspati, Tanmay
name: Trodden, Mark
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the context of inflationary models with a pre-inflationary stage, in which the Einstein equations are obeyed, the weak energy condition is satisfied, and spacetime topology is trivial, we argue that homogeneity on super-Hubble scales must be assumed as an initial condition. Models in which inflation arises from field dynamics in a Friedman-Robertson-Walker background fall into this class but models in which inflation originates at the Planck epoch, {\it eg.} chaotic inflation, may evade this conclusion. Our arguments rest on causality and general relativistic constraints on the structure of spacetime. We discuss modifications to existing scenarios that may avoid the need for initial large-scale homogeneity.
description: 4 pages, 3 figures, RevTeX, expanded and sharpened discussion of result, figures improved, references added
Recognition of M-type stars in the unclassified spectra of LAMOST DR5 using a hash learning method
Creators: name: Guo, Y. -X.
name: Luo, A. -L.
name: Zhang, S.
name: Du, B.
name: Wang, Y. -F.
name: Chen, J. -J.
name: Zuo, F.
name: Kong, X.
name: Hou, Y. -H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our study aims to recognize M-type stars which are classified as "UNKNOWN" due to bad quality in Large sky Area Multi-Object fibre Spectroscopic Telescope (LAMOST) DR5 V1. A binary nonlinear hashing algorithm based on Multi-Layer Pseudo Inverse Learning (ML-PIL) is proposed to effectively learn spectral features for the M-type star detection, which can overcome the bad fitting problem of template matching, particularly for low S/N spectra. The key steps and the performance of the search scheme are presented. A positive dataset is obtained by clustering the existing M-type spectra to train the ML-PIL networks. By employing this new method, we find 11,410 M-type spectra out of 642,178 "UNKNOWN" spectra, and provide a supplemental catalogue. Both the supplemental objects and released M-type stars in DR5 V1 are composed a whole M type sample, which will be released in the official DR5 to the public in June 2019, All the M-type stars in the dataset are classified to giants and dwarfs by two suggested separators: 1) color diagram of H versus J~K from 2MASS; 2) line indices CaOH versus CaH1, and the separation is validated with HRD derived from Gaia DR2. The magnetic activities and kinematics of M dwarfs are also provided with the EW of H_alpha emission line and the astrometric data from Gaia DR2 respectively.
description: 15 pages, 18 figures, accepted by MNRAS
Competing superconducting phases in interacting two-dimensional electron gas with strong Rashba spin-orbit coupling
Creators: name: Ghadimi, Rasoul
name: Kargarian, Mehdi
name: Jafari, S. Akbar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work we study interacting electrons on square lattice in the presence of strong Rashba spin-orbit interaction. The spin-orbit term forces the time-reversal electron states to be paired in even Cooper channels. For concreteness, we only consider the repulsive onsite Hubbard and nearest-neighbor coulomb interactions, the so called extended Hubbard model. To examine the superconducting instability we obtain the effective interaction between electrons within the random phase approximation and treat the pairing instabilities driven by charge and spin fluctuations and their combined effects. We mapped out the phase diagram of the model in terms of interactions and electron fillings, and found that while the $d_{xy}$ and $d_{x^2-y^2}$ symmetries are the most likely pairing symmetries driven by charge and spin fluctuations, respectively, the strong effect of both fluctuations yields higher angular momentum Cooper instability. The possibility of topological superconductivity and triplet pairing is also discussed.
description: 11 pages, 6 figures
Gauge theoretical equivariant Gromov-Witten invariants and the full Seiberg-Witten invariants of ruled surfaces
Creators: name: Okonek, Ch.
name: Teleman, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Symplectic Geometry (math.SG)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D45, 53C07, 32L05, 32L07, 32G15, 35Q40, 14D20

description: Let $(F,J,ω)$ be an almost Kähler manifold, $α$ a $J$-holomorphic action of a compact Lie group $\hat K$ on $F$, and $K$ a closed normal subgroup of $\hat K$ which leaves $ω$ invariant. We introduce gauge theoretical invariants for such triples $(F,α,K)$. The invariants are associated with moduli spaces of solutions of a certain vortex type equation on a Riemann surface. We give explicite descriptions of the moduli spaces associated with the triple $(\Hom(\C^r,\C^{r_0}), α_{\rm can},U(r))$, where $α_{\rm can}$ denotes the canonical action of $\hat K=U(r)\times U(r_0)$ on $\Hom(\C^r,\C^{r_0})$. In the abelian case $r=1$, the new invariants can be computed expliciteley and identified with the full Seiberg-Witten invariants of ruled surfaces.
description: 41 pages, LaTeX, To appear in Commun. Math. Phys. Only one correction: $(pr_{\Pic^{d'}(\Sigma)})^*$ replaced by $(pr_{\Pic^{d'}(\Sigma)})_*$ on page 26
Regular Bouncing Cosmological Solutions in Effective Actions in Four Dimensions
Creators: name: Constantinidis, C. P.
name: Fabris, J. C.
name: Furtado, R. G.
name: Picco, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study cosmological scenarios resulting from effective actions in four dimensions which are, under some assumptions, connected with multidimensional, supergravity and string theories. These effective actions are labeled by the parameters $ω$, the dilaton coupling constant, and $n$ which establishes the coupling between the dilaton and a scalar field originated from the gauge field existing in the original theories. There is a large class of bouncing as well as Friedmann-like solutions. We investigate under which conditions bouncing regular solutions can be obtained. In the case of the string effective action, regularity is obtained through the inclusion of contributions from the Ramond-Ramond sector of superstring.
description: Latex file, 10 pages, no figure
Initial Vortex Densities after a Temperature Quench
Creators: name: karra, G.
name: Rivers, R. J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the initial density of relativistic global vortices (strings) produced at a quench and contrast it with the predictions of Kibble and Zurek.
description: Latex file, 8 pages, No figures. The text contains minor changes that elucidate the onset of classical behaviour more thoroughly. Also including the word temperature in the title makes the nature of the transition more explicit
Spikes in Cosmic Crystallography
Creators: name: Gomero, G. I.
name: Teixeira, A. F. F.
name: Reboucas, M. J.
name: Bernui, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the universe is multiply connected and small the sky shows multiple images of cosmic objects, correlated by the covering group of the 3-manifold used to model it. These correlations were originally thought to manifest as spikes in pair separation histograms (PSH) built from suitable catalogues. Using probability theory we derive an expression for the expected pair separation histogram (EPSH) in a rather general topological-geometrical-observational setting. As a major consequence we show that the spikes of topological origin in PSH's are due to translations, whereas other isometries manifest as tiny deformations of the PSH corresponding to the simply connected case. This result holds for all Robertson-Walker spacetimes and gives rise to two basic corollaries: (i) that PSH's of Euclidean manifolds that have the same translations in their covering groups exhibit identical spike spectra of topological origin, making clear that even if the universe is flat the topological spikes alone are not sufficient for determining its topology; and (ii) that PSH's of hyperbolic 3-manifolds exhibit no spikes of topological origin. These corollaries ensure that cosmic crystallography, as originally formulated, is not a conclusive method for unveiling the shape of the universe. We also present a method that reduces the statistical fluctuations in PSH's built from simulated catalogues.
description: 25 pages, LaTeX2e. References updated. To appear in Int. J. Mod. Phys. D (2002) in the present form
Vortex-Antivortex Pair Production in a First Order Phase Transition
Creators: name: Digal, Sanatan
name: Sengupta, Supratim
name: Srivastava, Ajit M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We carry out numerical simulation of a first order phase transition in 2+1 dimensions by randomly nucleating bubbles, and study the formation of global U(1) vortices. Bubbles grow and coalesce and vortices are formed at junctions of bubbles via standard Kibble mechanism as well as due to a new mechanism, recently proposed by us, where defect-antidefect pairs are produced due to field oscillations. We make a comparative study of the contribution of both of these mechanisms for vortex production. We find that, for high nucleation rate of bubbles, vortex-antivortex pairs produced via the new mechanism have overlapping configurations, and annihilate quickly; so only those vortices survive till late which are produced via the Kibble mechanism. However, for low nucleation rates, bubble collisions are energetic enough to lead to many well separated vortex-antivortex pairs being produced via the new mechanism. For example, in a simulation involving nucleation of 20 bubbles, a total of 14 non-overlapping vortices and antivortices formed via this new mechanism of pair creation (6 of them being very well separated), as compared to 6 vortices and antivortices produced via the Kibble mechanism. Our results show the possibility that in extremely energetic bubble collisions, such as those in the inflationary models of the early Universe, this new mechanism may drastically affect the defect production scenario.
description: 8 pages, Revtex, 14 figures. Figs.1a,b and 5a,d are included, rest are availaible on request
“NOT OUR VICTORY”: MILITARY ASSISTANCE AND U.S. STRATEGY IN COLOMBIA, 1953-1960
Creators: name: Mendes, Dana
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2024

description: The subject of this thesis is U.S. military assistance to Colombia during the Eisenhower administration, and my purpose is to examine how U.S. officials conceived of military assistance’s role in achieving U.S. strategic objectives, and how U.S. military advisors attempted to implement that vision. I first argue that the roots of U.S. strategy in Latin America are misunderstood as either a drive for imperial dominance or myopic anticommunism, and can be better understood as the intersection of a Cold War strategy that emphasized creating democratic-capitalist partners, and a long-term U.S. impulse to “uplift” other societies, especially those in Latin America. Second, I argue that senior civilian and military officials held conflicting ideals of what security meant, and how best to achieve it, a conceptual incoherence which underlay a tumultuous transition in military assistance’s purpose from supporting a strategy of hemispheric defense to internal security. Finally, I examine the ground-level activities of the U.S. Army Mission to Colombia, which I claim was only loosely directed from Washington, showing the interaction between partner desires, advisor’s instincts, and centrally-managed U.S. policy to challenge previous conclusions about the nature of U.S. military advising mission. This thesis uses primary source documentation from the Presidential Libraries, U.S. National Archives, the United States Army Heritage and Education Center, and the U.S. Army Center for Military History.
title: Nachruf Herbert Weh
Creators: name: Reimers, Ulrich
Publisher: name: Cuvillier
Year: 2022
Subjects: subject: Jahrbuch der BWG
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 902

description: Jahrbuch der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021Jahrbuch 2021 der Braunschweigischen Wissenschaftlichen Gesellschaft, vol. 2021, p. 399
Riemann-Hilbert Problems for the Ernst Equation and Fibre Bundles
Creators: name: Klein, C.
name: Richter, O.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Riemann--Hilbert techniques are used in the theory of completely integrable differential equations to generate solutions that contain a free function which can be used at least in principle to solve initial or boundary value problems. The solution of a boundary value problem is thus reduced to the identification of the jump data of the Riemann-Hilbert problem from the boundary data. But even if this can be achieved,it is very difficult to get explicit solutions since the matrix Riemann-Hilbert problem is equivalent to an integral equation. In the case of the Ernst equation (the stationary axisymmetric Einstein equations in vacuum), it was shown in a previous work that the matrix problem is gauge equivalent to a scalar problem on a Riemann surface. If the jump data of the original problem are rational functions, this surface will be compact which makes it possible to give explicit solutions in terms of hyperelliptic theta functions. In the present work, we discuss Riemann-Hilbert problems on Riemann surfaces in the framework of fibre bundles. This makes it possible to treat the compact and the non-compact case in the same setting and to apply general existence theorems.
description: 12 pages, to be published in Journal of Geometry and Physics
Relativistic Celestial Mechanics with PPN Parameters
Creators: name: Klioner, Sergei A.
name: Soffel, Michael H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Starting from the global parametrized post-Newtonian (PPN) reference system with two PPN parameters $γ$ and $β$ we consider a space-bounded subsystem of matter and construct a local reference system for that subsystem in which the influence of external masses reduces to tidal effects. Both the metric tensor of the local PPN reference system in the first post-Newtonian approximation as well as the coordinate transformations between the global PPN reference system and the local one are constructed in explicit form. The terms proportional to $η=4β-γ-3$ reflecting a violation of the equivalence principle are discussed in detail. We suggest an empirical definition of multipole moments which are intended to play the same role in PPN celestial mechanics as the Blanchet-Damour moments in General Relativity. Starting with the metric tensor in the local PPN reference system we derive translational equations of motion of a test particle in that system. The translational and rotational equations of motion for center of mass and spin of each of $N$ extended massive bodies possessing arbitrary multipole structure are derived. As an application of the general equations of motion a monopole-spin dipole model is considered and the known PPN equations of motion of mass monopoles with spins are rederived.
description: 71 pages
Effect of the zero-tolerance drinking and driving law on mortality due to road traffic accidents according to the type of victim, sex, and age in Rio de Janeiro, Brazil: An interrupted time series study
Creators: name: Jomar, Rafael Tavares
name: Dandara De Oliveira Ramos
name: Vitor Augusto De Oliveira Fonseca
name: Washington Leite Junger
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Objective: The objective of this study was to estimate the effect of the Brazilian zero-tolerance drinking and driving law on mortality rates due to road traffic accidents according to the type of victim, sex, and age. Methods: An interrupted time series design was used to compare yearly mortality rates due to road traffic accidents in Rio de Janeiro, Brazil, before and after the zero-tolerance drinking and driving law came into effect on June 19, 2008. Yearly mortality rates were compared according to the type of victim: pedestrian, cyclist, motorcyclist, and vehicle occupant. We used the Prais-Winsten procedure of autoregression in the analysis of time series; the outcome of this analysis was the annual percentage change in the rates. Overall and stratified analyses were conducted to investigate whether the zero-tolerance drinking and driving law may have had a distributional effect on mortality rates due to road traffic accidents depending on sex and age group; a significance level of P < .01 was accepted. Results: From 1999 to 2016, there were 15,629 deaths due to road traffic accidents in Rio de Janeiro. The effect of the zero-tolerance drinking and driving law on overall mortality rates due to road traffic accidents in Rio de Janeiro was not statistically significant. However, among cyclists and motorcyclists aged ≥60 years and among pedestrians of both sexes and aged ≥20 years, the effect of the zero-tolerance drinking and driving law was to decrease mortality due to road traffic accidents at a yearly rate. Conclusion: There is evidence of reduced mortality rates due to road traffic accidents among cyclists and motorcyclists aged ≥60 years and among pedestrians of both sexes aged ≥20 years in the second major Brazilian capital 9 years after the zero-tolerance drinking and driving law was adopted.
“WE WILL RISE AGAIN”: LOST CAUSE NARRATIVES IN THE UNITED STATES AND EASTERN EUROPE
Creators: name: Gilmore, Kara Delores
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2024

description: The Lost Cause refers to a narrative developed in the post-Civil War American South which sought to portray the Confederacy as heroic while marginalizing the role of slavery in the war. Historian David Blight identified three key elements of the Lost Cause narrative: efforts to write and control history, the use of white supremacy as both a means and ends, and the critical role of women in its development. Using Blight’s definition, this thesis seeks to demonstrate that Lost Cause narratives are not unique to the United States and can be found in a variety of global postwar contexts. Specifically, this paper intends to illustrate the existence of Lost Cause narratives in Eastern Europe, using the case studies of Hungary and Serbia as examples.
Rectification of current in ac-driven nonlinear systems and symmetry properties of the Boltzmann equation
Creators: name: Yevtushenko, O.
name: Flach, S.
name: Zolotaryuk, Y.
name: Ovchinnikov, A. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study rectification of a current of particles moving in a spatially periodic potential under the influence of time-periodic forces with zero mean value. If certain time-space symmetries are broken a non-zero directed current of particles is possible. We investigate this phenomenon in the framework of the kinetic Boltzmann equation. We find that the attractor of the Boltzmann equation completely reflects the symmetries of the original one-particle equation of motion. Especially, we analyse the limits of weak and strong relaxation. The dc current increases by several orders of magnitude with decreasing dissipation.
description: New references added; 12 pages, 3 figures
Diophantine quadruples with the properties $D(n_1)$ and $D(n_2)$
Creators: name: Dujella, Andrej
name: Petričević, Vinko
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11D09, Secondary 11G05

description: For a nonzero integer $n$, a set of $m$ distinct nonzero integers $\{a_1,a_2,...,a_m\}$ such that $a_ia_j+n$ is a perfect square for all $1 \leq i < j \leq m$, is called a $D(n)$-$m$-tuple. In this paper, we show that there infinitely many essentially different quadruples which are simultaneously $D(n_1)$-quadruples and $D(n_2)$-quadruples with $n_1\neq n_2$.
description: 8 pages
Critical gravitational collapse of a perfect fluid: nonspherical perturbations
Creators: name: Gundlach, C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Continuously self-similar (CSS) solutions for the gravitational collapse of a spherically symmetric perfect fluid, with the equation of state p=kappa rho, with 0
description: RevTex, 29 pages, 14 figures. Completely rewritten for resubmission to Phys. Rev. D
An evaluation of task clarification and feedback to teach feedback reception skills
Creators: name: Flynn, Kira E.
name: Wilder, David A.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Computational Biology

description: Most of the research on feedback in organizational behavior management has focused on parameters of feedback delivery; few studies have examined how to teach individuals to effectively receive feedback. The studies that do exist on this topic used behavioral skills training or computer-based instruction to teach feedback reception skills. Although effective, these instructional methods are resource-intensive; more efficient methods of teaching feedback reception skills may be useful. In this study, we investigated the efficacy of task clarification and feedback to teach appropriate feedback reception skills to three Registered Behavior Technicians® working at a clinic serving children with autism and related disabilities. One participant met the mastery criteria for the feedback reception skills with task clarification alone, while two participants required task clarification plus performance feedback to reach the mastery criteria. We discuss the use of task clarification to teach skills and the importance of feedback reception skills in human service settings.
Trace formula for noise corrections to trace formulas
Creators: name: Palla, Gergely
name: Vattay, Gabor
name: Voros, Andre
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider an evolution operator for a discrete Langevin equation with a strongly hyperbolic classical dynamics and Gaussian noise. Using an integral representation of the evolution operator we investigate the high order corrections to the trace of arbitary power of the operator. The asymptotic behaviour is found to be controlled by sub-dominant saddle points previously neglected in the perturbative expansion. We show that a trace formula can be derived to describe the high order noise corrections.
description: 4 pages, 2 figures
Quantum speed limit for a mixed initial state
Creators: name: Wu, Shao-xiong
name: Yu, Chang-shui
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A unified bound on the quantum speed limit is obtained for open quantum systems with the mixed initial state by utilizing the function of relative purity proposed in [Phys. Rev. Lett. 120, 060409 (2018)]. As applications, it is found that the quantum speed limit bound for the damped Jaynes-Cumming model is determined by the competition among the non-Markovianity, the population of initial excited state and the initial-state coherence, which shows that the population of initial excited state and the coherence of initial state can sharp the quantum speed limit despite that the non-Markovian effects can accelerate the evolution of open quantum system. For the dephasing model, a simple factorization law with the initial-state coherence shows that the quantum speed limit is only governed by the competition between the non-Markovianity and the coherence of the initial state.
description: Accepted by Physical Review A
ADJUSTING THE QUALITY OF TEXTILE PRODUCTS TO INTERNATIONAL STANDARD
Creators: name: Mansurov Saidkhodja Kamalovich Tashkent state university of economics Doctoral student of the "management" department.
Publisher: name: Zenodo
Year: 2024

description:   Ушбу тезисда мамлакатимиз пахта хом ашёни чуқур қайта ишлашга қаратилган кластер тизимида фаолият юритаётган корхоналар томонидан ишлаб чиқарилаётган маҳсулотларга халқаро стандартларни жорий этилиши шунингдек экспорт географиясини кенгайтиришда хорижий мамлакатлар томонидан талаб этиладиган сертификацияларини жорий этиш каби масалалар жой олган.

Калит сўзлар:

  Замонавий технология, модернизация, қўшимча қиймат, экспорт хажми, халқаро стандарт, халқаро коалитса, рақобатбардошлик, сифат менежменти, инвестиция, мехнат унумдорлиги, инновацион салоҳият.
A Discourse on Inter-Religion Tension in a Pluralized Nigeria: Examining the Role of Interfaith Dialogue as a Panacea
Creators: name: Olowo, Adam Folorunsho
Publisher: name: Manara - Qatar Research Repository
Year: 2025
Subjects: classificationCode: 50
subject: Philosophy and religious studies

description: Over the past few decades, there has been a growing concern over the continued escalation of inter-religious violence among Muslims and Christians in Nigeria. The high level of ethnic and cultural diversity coinciding with acute politicization of religion have immensely contributed and added more fuel to the wildfire of violent inter-religious tension in the region, most especially in the North. The British occupation of Nigeria is also believed to have set in motion a chain of event that encourages discriminatory and stereotypical rhetoric, the implication of which not only affects stability and development in Nigeria but take a heavy toll on human life and property. With the increasing danger of Islamist insurgent forces in Northern Nigeria, this study seeks to investigate the historical evolution of inter-religious conflict in Nigeria in a bid to identify the underlying factors responsible for the emergence of religious-motivated conflict in the land, and therefore, develop potential solutions designed specifically for the Nigerian context. Proposing dialogue as a panacea, this study will investigate the activities of interfaith organizations in Nigeria to identify areas of deficiency in the implementation of dialogue and to outline the challenges they currently face. Employing Lederach’s model of integrated dialogue and the nested paradigm, this study argues that dialogue with all groups and at all levels is a necessary precondition for peace, while also developing ways by which a sustainable system of dialogue can be ensured in a multireligious Nigeria.
Finite-temperature evaluation of the Fermi density operator
Creators: name: Gagel, F.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A rational expansion of the Fermi density operator is proposed. This approach allows to calculate efficiently physical properties of fermionic systems at finite temperatures without solving an eigenvalue problem. Using N evaluations of the Green's function, the Fermi density operator can be approximated, subject to a given precision, in the energy interval from -A to infinity with A proportional to N. The presented method may become especially useful for electronic structure calculations involving the calculation of charge densities.
description: 6 pages, 4 Postscript figures, submitted to J. Comp. Phys
Early cosmology and the stochastic gravitational wave background
Creators: name: Mendes, Luis E
name: Liddle, Andrew R
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The epoch when the Universe had a temperature higher than a GeV is long before any time at which we have reliable observations constraining the cosmological evolution. For example, the occurrence of a second burst of inflation (sometimes called thermal inflation) at a lower energy scale than standard inflation, or a short epoch of early matter domination, cannot be ruled out by present cosmological data. The cosmological stochastic gravitational wave background, on scales accessible to interferometer detection, is sensitive to non-standard cosmologies of this type. We consider the implications of such alternative models both for ground-based experiments such as LIGO and space-based proposals such as LISA. We show that a second burst of inflation leads to a scale-dependent reduction in the spectrum. Applied to conventional inflation, this further reduces an already disappointingly low signal. In the pre big bang scenario, where a much more potent signal is possible, the amplitude is reduced but the background remains observable by LISA in certain parameter space regions. In each case, a second epoch of inflation induces oscillatory features into the spectrum in a manner analogous to the acoustic peaks in the density perturbation spectrum. On LIGO scales, perturbations can only survive through thermal inflation with detectable amplitudes if their amplitudes were at one time so large that linear perturbation theory is inadequate. Although for an epoch of early matter domination the reduction in the expected signal is not as large as the one caused by a second burst of inflation, the detection in the context of the pre big bang scenario may not be possible since the spectrum peaks around the LIGO frequency window and for lower frequencies behaves as $f^3$.
description: 17 pages RevTeX file with eight figures incorporated (uses RevTeX and epsf). No modifications to results but substantial changes to discussion