cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PIERRE BOURDIEU'S THEORY OF CAPITAL AND PARENTAL SCHOOL CHOICE DECISIONS: A NATIONAL STUDY
Creators: name: Waits, Tiffany
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4410
subject: Sociology
subject: FOS: Sociology

description: School choice, whereby parents choose their child's school rather than send them to their geographically assigned school, has been heavily researched from multiple angles and perspectives over the course of the past two decades. Both advocates and opponents of school choice have argued the benefits and detriments related to allowing parents to self-select their children's schools. This study seeks to uniquely study the topic through the sociological lens of theorist Pierre Bourdieu. Using the National Household Education Survey (NHES), the study operationalizes, applies, and quantitatively analyzes the effect of Bourdieu's four forms of capital; economic, cultural, symbolic, and social, on parental school choice decisions and their reasons for doing so. Results indicate that cultural, economic, and symbolic capital are all valid predictors of school choice, such that those with high levels of capital will be more likely to choose a school for their child than those with low levels of these forms of capital. Results also found that parents with higher levels of cultural and economic capital were more likely to choose their child's school for academic reasons, while those with lower levels of cultural and economic capital were more likely to report choosing their child's school for logistical or practical reasons. The study's findings, through their operationalization and application, are an important contribution to Bourdieu's theory of capital, lending powerful support to the way that the forms of capital are reproduced to the next generation. The findings also provide warning that school choice may not be equitable, and that differences between those who choose and their reasons for doing so could be another source of the reproduction of social stratification.
JOB SECTOR CHOICE AND PUBLIC SERVICE MOTIVATION: EVIDENCE FROM COLOMBIA
Creators: name: Sanabria-Pulido, Pedro Pablo
Publisher: name: American University
Year: 2023

description: Public administration scholarship has yet to explore the relationship between job sector choice and public service motivation in developing countries. My dissertation aims to contribute to the field by investigating the factors that explain job sector decisions among highly skilled individuals through focusing on a sample of Colombian citizens who have pursued education abroad. More specifically, I draw on the fields of job sector choice and public service motivation to identify, both quantitatively and qualitatively, factors affecting the job sector decisions of internationally educated Colombians. I answer my research questions through an analysis of quantitative data gathered from the Colombian international scholarship program Colfuturo, and also through an analysis of qualitative data gathered from interviews with highly skilled individuals working in various sectors. The main conclusion reached is that the Colombian public sector remains an attractive employer, especially within certain groups of the population. However, other groups remain doubtful about accepting a public sector job. The Colombian government still has to adjust its recruitment strategies in terms of, among other things, salaries, duration of contracts, open access and transparency. Crucially, the results collected raise an important question concerning what the Colombian government should do, that is, whether it should facilitate access to government jobs for captive groups or, instead, attract qualified individuals currently working in other sectors. According to the quantitative and qualitative evidence provided herein, the answer is that both strategies are necessary if the Colombian government wants to increase its critical mass of highly qualified people, particularly within the upper echelons of government.
JOB SECTOR CHOICE AND PUBLIC SERVICE MOTIVATION: EVIDENCE FROM COLOMBIA
Creators: name: Sanabria-Pulido, Pedro Pablo
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4407
subject: Policy and administration

description: Public administration scholarship has yet to explore the relationship between job sector choice and public service motivation in developing countries. My dissertation aims to contribute to the field by investigating the factors that explain job sector decisions among highly skilled individuals through focusing on a sample of Colombian citizens who have pursued education abroad. More specifically, I draw on the fields of job sector choice and public service motivation to identify, both quantitatively and qualitatively, factors affecting the job sector decisions of internationally educated Colombians. I answer my research questions through an analysis of quantitative data gathered from the Colombian international scholarship program Colfuturo, and also through an analysis of qualitative data gathered from interviews with highly skilled individuals working in various sectors. The main conclusion reached is that the Colombian public sector remains an attractive employer, especially within certain groups of the population. However, other groups remain doubtful about accepting a public sector job. The Colombian government still has to adjust its recruitment strategies in terms of, among other things, salaries, duration of contracts, open access and transparency. Crucially, the results collected raise an important question concerning what the Colombian government should do, that is, whether it should facilitate access to government jobs for captive groups or, instead, attract qualified individuals currently working in other sectors. According to the quantitative and qualitative evidence provided herein, the answer is that both strategies are necessary if the Colombian government wants to increase its critical mass of highly qualified people, particularly within the upper echelons of government.
Electrodynamics and the Mass-Energy Equivalence Principle
Creators: name: Bakhoum, Ezzat G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper we investigate the link between classical electrodynamics and the mass-energy equivalence principle, in view of the conclusions reached in ref.[1]. A formula for the radius of a charged particle is derived. The formula predicts the radius of the proton correctly. The radius of the electron turns out to be a surprising quantity that solves the existing problems of electrodynamics, particularly the problem of the infinite self-force of the electron. In addition, the classical radius of the electron (2.82fm) will prove to be not a "radius", but rather the mean distance through which the retarded potentials of the self-force act. An important conclusion is that there is no deficiency in the classical Abraham-Lorentz model of the self-force, but rather the problem lies with our intuitive understanding of what an elementary particle is. Other important conclusions are also discussed, including a physically sound explanation for why electric charges must be quantized (as opposed to Dirac's monopole theory).
description: V4: Removed Section 3.2. Will be expanded and submitted as an independent paper
J/$ψ$ elliptic and triangular flow in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The inclusive J/$ψ$ elliptic ($v_2$) and triangular ($v_3$) flow coefficients measured at forward rapidity (2.5 $
description: 27 pages, 7 captioned figures, 2 tables, authors from page 22, published version, figures at http://alice-publications.web.cern.ch/node/6294
Problemlöseprozess: Beobachtung und Analyse bei vier Schülerinnen und Schülern der zweiten Regelklasse
Creators: name: With, Beatrice
Publisher: name: Zenodo
Year: 2019
Subjects: Sonderpädagogik
Problemlösen
Grundschule
Masterarbeit

description: Die vorliegende Masterarbeit untersucht den mathematischen Problemlöseprozess von vier Schülerinnen und Schülern. Sie stützt sich dabei hauptsächlich auf das Vorgehen, welches von Pólya (1995) vorgeschlagen wird. Mittels einer qualitativen Inhaltsanalyse wird erforscht, inwiefern die Schülerinnen und Schüler der Theorie entsprechend vorgehen, wenn ihnen ein Problem aus dem Bereich der Kombinatorik vorgelegt wird. Da die vier Kinder aufgrund ihrer stark bzw. schwach ausgeprägten exekutiven Funktionen ausgewählt wurden, interessiert zudem der Zusammenhang zwischen den exekutiven Funktionen und dem Vorgehen im Problemlöseprozess. Insgesamt hat sich gezeigt, dass die von der Theorie erarbeiteten Schritte in allen vier Problemlöseprozessen nachzuweisen sind. Allerdings sind Unterschiede im Vorgehen feststellbar, die möglicherweise auf die exekutiven Funktionen zurückzuführen sind.
Quasinormal modes in pure de sitter spacetimes
Creators: name: Du, Da-Ping
name: Wang, Bin
name: Su, Ru-Keng
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have studied scalar perturbations as well as fermion perturbations in pure de Sitter space-times. For scalar perturbations we have showed that well-defined quasinormal modes can exist provided that the mass of scalar field $m>\frac{d-1}{2l}$. The quasinormal frequencies of fermion perturbations in three and four dimensional cases have also been presented. We found that different from other dimensional cases, in three dimensional pure de Sitter spacetime there is no quasinormal mode for the s-wave. This interesting difference caused by the spacial dimensions is true for both scalar and fermion perturbations.
description: Revised version, references added, to appear in Phys. Rev. D
title: The molecular genetics of Type 2 diabetes
Creators: name: Saker, Philip John
Publisher: name: The Open University
Year: 1995

description: Type 2 diabetes has a substantial genetic component. The aim of this dissertation was to investigate the molecular basis of Type 2 diabetes with particular emphasis on the role of the glucokinase gene. Other work studied specific mutations in the tRNALeu(UUR) gene of mitochondrial DNA and in the glucagon receptor gene.

 The Introductory chapter presents an overview of Type 2 diabetes, and the influence of the environment and the contribution of genetics to its development. It then introduces the molecular biological approach to the study of this disease and the function of the β-cell and the important role of glucokinase in glucose homeostasis.

 Chapter 2 gives details of ascertainment criteria for the subjects studied and outlines the methodology used to study the molecular genetics of Type 2 diabetes. The techniques described include DNA extraction, the polymerase chain reaction (PCR), microsatellite markers, restriction fragment length polymorph isms (RFLPs), mutation screening, separation of PCR products and direct sequencing of them.

 Chapter 3 investigates the role of the glucokinase gene in five pedigrees with maturity onset diabetes of the young (MOOY). Using the microsatellite polymorph isms GCK1 and GCK2, diabetes was found not to be linked to the glucokinase gene in these multi-generation pedigrees.

 Chapter 4 assesses the contribution of the glucokinase gene to Type 2 diabetes in the UK Caucasian population by investigating the two microsatellite polymorph isms in well-characterised Type 2 diabetic subjects and normoglycaemic control subjects. There was no linkage disequilibrium between the two polymorphisms, and no association with diabetes was found. This suggests that a single mutation in or near the glucokinase gene is not a common cause of Type 2 diabetes in this population.

 Chapter 5 describes the development of a robust method to screen for mutations using the technique of single-stranded conformational polymorphism (SSCP) analysis. Chapter 6 utilises this method, and found that mutations in the glucokinase gene can contribute to the pathogenesis of gestational diabetes. Four pedigrees from the Oxford district had been found to possess the same missense mutation in the glucokinase gene at position 299. Chapter 7 establishes that the high prevalence of this glucokinase mutation in this district is probably due to a founder-effect, by haplotyping affected members of the four pedigrees for GCK1 and GCK2.

 Chapters 8 and 9 use restriction fragment length polymorphism (RFLP) analysis to detect specific mutations known to create, or remove a cutting site for a restriction endonuclease. Chapter 8 investigates the contribution of the mitochondrial transfer RNA (tRNALeu(UUR)) mutation at position 3243bp to Type 2 diabetes. Chapter 9 studies a mutation in the glucagon receptor and its possible susceptibility to Type 2 diabetes.

 Chapter 10 concludes the dissertation and outlines future areas for investigation.
Three-Filters-to-Normal: An Accurate and Ultrafast Surface Normal Estimator
Creators: name: Fan, Rui
name: Wang, Hengli
name: Xue, Bohuan
name: Huang, Huaiyang
name: Wang, Yuan
name: Liu, Ming
name: Pitas, Ioannis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper proposes three-filters-to-normal (3F2N), an accurate and ultrafast surface normal estimator (SNE), which is designed for structured range sensor data, e.g., depth/disparity images. 3F2N SNE computes surface normals by simply performing three filtering operations (two image gradient filters in horizontal and vertical directions, respectively, and a mean/median filter) on an inverse depth image or a disparity image. Despite the simplicity of 3F2N SNE, no similar method already exists in the literature. To evaluate the performance of our proposed SNE, we created three large-scale synthetic datasets (easy, medium and hard) using 24 3D mesh models, each of which is used to generate 1800--2500 pairs of depth images (resolution: 480X640 pixels) and the corresponding ground-truth surface normal maps from different views. 3F2N SNE demonstrates the state-of-the-art performance, outperforming all other existing geometry-based SNEs, where the average angular errors with respect to the easy, medium and hard datasets are 1.66 degrees, 5.69 degrees and 15.31 degrees, respectively. Furthermore, our C++ and CUDA implementations achieve a processing speed of over 260 Hz and 21 kHz, respectively. Our datasets and source code are publicly available at sites.google.com/view/3f2n.
description: webpage: sites.google.com/view/3f2n, accepted to IEEE RA-L and ICRA'21
Transcriptional regulation of USP24 by NF-kappa B
Creators: name: Wang, Ke
Publisher: name: University of British Columbia
Year: 2011

description: Parkinson's disease (PD) is one of the most prevalent neurodegenerative diseases. Impairment of the ubiquitin pathway is believed to play an important role in the pathogenesis of PD. The ubiquitination process regulates the available amount, correct localization, and proper activity of target proteins. This process is carried out under tight regulation not only by enzymes linking ubiquitin molecules onto their targets, but also by deubiquitinating enzymes which remove ubiquitin molecules from the ubiquitinated proteins. Little is known about the recently discovered deubiquitinating enzyme Ubiquitin Specific Protease 24 (USP24), a product of USP24 gene which spans a large area (>140,000 bp) on the chromosome 1p32 region. Recent genetic linkage studies indicated that the location of the USP24 gene is significantly correlated with the disease. These studies imply that USP24 is likely a novel "PARK" protein. As a part of the study to elucidate the participation of USP24 in PD pathogenesis and mechanisms that modulate USP24 activity, we investigated the molecular mechanism of USP24 gene transcription. Promoter of the USP24 gene was cloned into pGL3-Basic vector and analyzed by a luciferase based reporter assay system. We identified the transcription starting site(TSS) of USP24 gene and the transcription starting site located at 251 bp upstream of the translation starting site. Expression of the USP24 gene is controlled by a TATA-box-less promoter. NF-κB signaling plays an important role in multiple cellular events such as inflammation and programmed cell death. It has been reported that increased NF-κB nuclear translocation occurs in substantia nigra (SN) dopaminergic neurons of PD patients, suggesting that NF-κB signaling is involved in PD pathogenesis. An NF- κB binding site was identified on USP24 promoter. Overexpression of NF-κB or activation of NF-κB by TNF-α significantly increased USP24 promoter activity. Mutation of the binding site abolished the regulatory effect of NF-κB on the USP24 promoter. In summary, we have identified USP24 gene promoter and our study demonstrates that NF-κB signaling pathway regulates USP24 gene transcription. The results will further our understanding of the regulation of ubiquitin pathway and its involvement in PD pathogenesis.
Determination of the effective kinematic viscosity for the decay of quasiclassical turbulence in superfluid $^4$He
Creators: name: Gao, J.
name: Guo, W.
name: Vinen, W. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The energy dissipation of quasiclassical homogeneous turbulence in superfluid $^4$He (He II) is controlled by an effective kinematic viscosity $ν'$, which relates the energy decay rate $dE/dt$ to the density of quantized vortex lines $L$ as $dE/dt=-{ν'}(κL)^2$. The precise value of $ν'$ is of fundamental importance in developing our understanding of the dissipation mechanism in He II, and it is also needed in many high Reynolds number turbulence experiments and model testing that use He II as the working fluid. However, a reliable determination of $ν'$ requires the measurements of both $E(t)$ and $L(t)$, which was never achieved. Here we discuss our study of the quasiclassical turbulence that emerges in the decay of thermal counterflow in He II at above 1 K. We were able to measure $E(t)$ using a recently developed flow visualization technique and $L(t)$ via second sound attenuation. We report the $ν'$ values in a wide temperature range determined for the first time from a comparison of the time evolution of $E(t)$ and $L(t)$.
description: 6 pages, 6 figures
Vegetationsgeschichte eines Talmoores in Nordost-China
History of the vegetation of a valley mire in Northeast China
Creators: name: Thiele, Annett
name: Schröder, Christian
name: Michaelis, Dierk
Publisher: name: FID GEO
Year: 2008

description: Abstract: Macrofossil-analytical methods were used to reconstruct the vegetation development of a valley mire in temperate Northeast China. Statistical methods supported the differentiation of various developmental stages. The vegetation development shows parallels but also differences with the formation of northeast German valley mires. The mire originated as a result of paludification followed by a stagnant water body that terrestrialized. Subsequently a brownmoss rich sedge mire establised. The macrofossils indicate a loose and highly permeable peat. After a natural disturbance (flooding), resulting in the sedimentation of clastic material, it took some time until stable wet conditions re-established. In the upper three meters of the nearly nine meters thick peat layer, the composition of peat shows a marked increase of macrofossil types indicating acid-poor conditions and woody plants. Possible autogenous and allognic reasons for this change are discussed. As the uppermost peat is similar to that of the upper three metres of peat, we conclude that the mire is still in a near natural condition. This emphasises its conservation value as a representative of a former widespread mire type and as a reference site to study the valley mires that were typical for this region.
description: Zusammenfassung: Mit Hilfe einer Makrofossilanalyse wird die Vegetationsgeschichte eines Talmoores im temperaten Nordosten Chinas rekonstruiert. Für die Abgrenzung und Beschreibung verschiedener Entwicklungsphasen wurden neben der Interpretation der Makroreste statistische Methoden angewendet. Die Vegetationsentwicklung zeigt Parallelen aber auch Unterschiede zur Genese der nordostdeutschen Talmoore. Das Moor ist nach einer initialen Versumpfung und kurzen Gewässerphase als Verlandungsmoor entstanden, auf dem anschließend ein braunmoosreiches Durchströmungsmoor aufwuchs. Die Makrofossilien lassen auf konstante schwammsumpfige Bedingungen schließen. Eine natürliche Störung (Überflutung) führte zur Ablagerung einer mineralischen Schicht und einer Veränderung des Standortes. Nach der Bildung weiterer Torfe etablierte sich ein Seggenried mit Arten, welche stabile und gleichmäßig nasse Verhältnisse indizieren. Im oberen Drittel des fast neun Meter mächtigen Torfköpers kommt es zu einem Anstieg von Indikatorarten sauer-armer Standorte sowie zu einer Zunahme von Gehölzresten. Eine Veränderung des Klimas oder das natürliche Herauswachsen des Moorkörpers aus dem Grundwassereinflussbereich werden hierfür als Ursache angenommen. Die obersten Torfe lassen keine Veränderung in Zusammensetzung und Zersetzungsgrad erkennen und verdeutlichen den naturnahen Zustand des Moores. Aufgrund dieser geringen anthropogenen Beeinflussung hat das Moor einen sehr hohen Schutzwert und eignet sich als Referenzobjekt für einen ehemals in der Region weit verbreiteten Moortyp.
description: DFG, SUB Göttingen, DGMT
description: research
Renormalized Cosmological Perturbation Theory
Creators: name: Crocce, M.
name: Scoccimarro, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop a new formalism to study nonlinear evolution in the growth of large-scale structure, by following the dynamics of gravitational clustering as it builds up in time. This approach is conveniently represented by Feynman diagrams constructed in terms of three objects: the initial conditions (e.g. perturbation spectrum), the vertex (describing non-linearities) and the propagator (describing linear evolution). We show that loop corrections to the linear power spectrum organize themselves into two classes of diagrams: one corresponding to mode-coupling effects, the other to a renormalization of the propagator. Resummation of the latter gives rise to a quantity that measures the memory of perturbations to initial conditions as a function of scale. As a result of this, we show that a well-defined (renormalized) perturbation theory follows, in the sense that each term in the remaining mode-coupling series dominates at some characteristic scale and is subdominant otherwise. This is unlike standard perturbation theory, where different loop corrections can become of the same magnitude in the nonlinear regime. In companion papers we compare the resummation of the propagator with numerical simulations, and apply these results to the calculation of the nonlinear power spectrum. Remarkably, the expressions in renormalized perturbation theory can be written in a way that closely resembles the halo model.
description: 22 pages, 13 figures. Final (published) version
Quark mass dependence of masses and decay constants of the pseudo-Goldstone bosons in QCD
Creators: name: Farchioni, F.
name: Montvay, I.
name: Scholz, E.
name: Scorzato, L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The dependence of the pseudoscalar meson masses and decay constants on sea and valence quark masses is compared to next-to-leading order (NLO) Chiral Perturbation Theory (ChPT). The numerical simulations with two light dynamical quark flavors are performed with the Wilson-quark lattice action at gauge coupling beta=5.1 and hopping parameters kappa=0.176, 0.1765, 0.177 on a 16^4 lattice. O(a) lattice artifacts are taken into account by applying chiral perturbation theory for the Wilson lattice action. The values of the relevant combinations of Gasser-Leutwyler constants L_4, L_5, L_6 and L_8 are estimated.
description: 21 pages, 4 figures; discussion of the sea quark mass dependence changed, references added
Renaturierung von Mooren nach Naturschutzrecht im Verhältnis zum Bodenschutzrecht
Restoring of bogs/fens to nature according to the law of conservation of nature in relation to the law of conservation of soil in Germany
Creators: name: Schweikle, Volker
Publisher: name: FID GEO
Year: 2005

description: Abstract: The restoring of the nature of bogs/fens due to the german law of conservation of nature is limited by the use of peats as archives due to the german law of conservation of soil.
description: Zusammenfassung: Die Renaturierung von Mooren nach Bundesnaturschutzgesetz ist zum Schutz der Archivfunktion nach Bundesbodenschutzgesetz nur mit Auflagen möglich.
description: DFG, SUB Göttingen, DGMT
description: research
title: Teaching with style: computer aided instruction, personality and design education
Creators: name: Durling, David
Publisher: name: The Open University
Year: 1996

description: The investigation reported in this thesis concerns the possibility of automatically matching the learning styles of design students with appropriate styles of computer aided instruction (CAl). Individual adult learners exhibit preferences for the way information is presented and for the ways in which they are taught. These preferences arise from characteristics known as cognitive styles which are associated with personality. Cognitive dissonance occurs when there is a mismatch between styles of teaching and styles of learning. Under these conditions some students will be discouraged. A survey of students on typical design courses showed them to have particular learning preferences. In this respect they are differentiated from tutors who may prefer to teach in a different style. CAl systems also exhibit styles. These are manifest in features such as the computer's control of learning interactions and the form of information which the system delivers. Computer-based training has often been of a sequential, drill-andpractice kind which encourages rote learning. This style has met with limited success, and it is shown to be unsuitable for most design students. The Myers-Briggs Type Indicator (MBTI) is used to classify the psychological types of design students. Evidence of learning preferences from the MBTI and from related sources is given. From a theoretical description of learning episodes, a computer-based model is developed that provides CAl treatments matched to sixteen learning styles. It is concluded that CAl-based teaching of technological information to design students can be more optimally matched. The principles established have wider implications for communications between designers and others.
SPATIO-TEMPORAL EVIDENCE OF ANTHROPOGENIC NITROGEN IN FLORIDA WATERS USING STABLE ISOTOPE ANALYSIS OF MANATEE BONES
Creators: name: Bacalan, Vince
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences

description: Nutrient pollution from human activities leads to coastal eutrophication and degradation of critical habitat for threatened species, including the Florida manatees (Trichechus manatus latirostris). Recovery of these damaged habitats relies on water quality assessments over a long period of time. With the absence of long-term diet and water quality data, manatee bones will serve as proxies for environmental reconstruction. Isotopic composition of skeletal nitrogen (N) reflects plants that manatees consume and the predominant N source driving primary productivity within the ecosystem. Sewage, as a consequence of rapid coastal development, is isotopically distinct from natural sources of N. Thus, delta15N values are predicted to increase over time and would be highest in densely-populated areas. Collagen in manatee bones were analyzed from 173 necropsied individuals since 1975. Mean δ15N values have decreased from 8.8 / in the 1970s to 6.3 / in 2010 mainly because fertilizer is the source of depleted N. Coastal and regional mean δ15N values were very high, suggesting a mixing of enriched N sources that include sewage and atmospheric deposition.
A Low Frequency Survey of the Galactic Plane Near l=11 degrees: Discovery of Three New Supernova Remnants
Creators: name: Brogan, C. L.
name: Devine, K. E.
name: Lazio, T. J.
name: Kassim, N. E.
name: Tam, C. R.
name: Brisken, W. F.
name: Dyer, K. K.
name: Roberts, M. S. E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have imaged a 1 deg^2 field centered on the known Galactic supernova remnant (SNR) G11.2-0.3 at 74, 330, and 1465 MHz with the Very Large Array radio telescope (VLA) and 235 MHz with the Giant Metrewave Radio Telescope (GMRT). The 235, 330, and 1465 MHz data have a resolution of 25 arcsec, while the 74 MHz data have a resolution of 100 arcsec. The addition of this low frequency data has allowed us to confirm the previously reported low frequency turnover in the radio continuum spectra of the two known SNRs in the field: G11.2-0.3 and G11.4-0.1 with unprecedented precision. Such low frequency turnovers are believed to arise from free-free absorption in ionized thermal gas along the lines of site to the SNRs. Our data suggest that the 74 MHz optical depths of the absorbing gas is 0.56 and 1.1 for G11.2-0.3 and G11.4-0.1, respectively. In addition to adding much needed low frequency integrated flux measurements for two known SNRs, we have also detected three new SNRs: G11.15-0.71, G11.03-0.05, and G11.18+0.11. These new SNRs have integrated spectral indices between -0.44 and -0.80. Because of confusion with thermal sources, the high resolution (compared to previous Galactic radio frequency surveys) and surface brightness sensitivity of our observations have been essential to the identification of these new SNRs. With this study we have more than doubled the number of SNRs within just a 1 deg^2 field of view in the inner Galactic plane. This result suggests that future low frequency observations of the Galactic plane of similar quality may go a long way toward alleviating the long recognized incompleteness of Galactic SNR catalogs.
description: 31 pages, 9 figures. Figure 7 is in color. Accepted to AJ
title: Compendio hsitorico de los servicios de la villa de Biblao en la guerra con la nacion francesa... en el año 1793
Creators: name: Anonyme
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: Bibliothèque patrimoniale Villon (Rouen), fonds Leber, Mt m 22086
A stochastic kinetic scheme for multi-scale flow transport with uncertainty quantification
Creators: name: Xiao, Tianbai
name: Frank, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Gaseous flows show a diverse set of behaviors on different characteristic scales. Given the coarse-grained modeling in theories of fluids, considerable uncertainties may exist between the flow-field solutions and the real physics. To study the emergence, propagation and evolution of uncertainties from molecular to hydrodynamic level poses great opportunities and challenges to develop both sound theories and reliable multi-scale numerical algorithms. In this paper, a new stochastic kinetic scheme will be developed that includes uncertainties via a hybridization of stochastic Galerkin and collocation methods. Based on the Boltzmann-BGK model equation, a scale-dependent evolving solution is employed in the scheme to construct governing equations in the discretized temporal-spatial domain. Therefore typical flow physics can be recovered with respect to different physical characteristic scales and numerical resolutions in a self-adaptive manner. We prove that the scheme is formally asymptotic-preserving in different flow regimes with the inclusion of random variables, so that it can be used for the study of multi-scale non-equilibrium gas dynamics under the effect of uncertainties. Several numerical experiments are shown to validate the scheme. We make new physical observations, such as the wave-propagation patterns of uncertainties from continuum to rarefied regimes. These phenomena will be presented and analyzed quantitatively. The current method provides a novel tool to quantify the uncertainties within multi-scale flow evolutions.
SPATIO-TEMPORAL EVIDENCE OF ANTHROPOGENIC NITROGEN IN FLORIDA WATERS USING STABLE ISOTOPE ANALYSIS OF MANATEE BONES
Creators: name: Bacalan, Vince
Publisher: name: American University
Year: 2023

description: Nutrient pollution from human activities leads to coastal eutrophication and degradation of critical habitat for threatened species, including the Florida manatees (Trichechus manatus latirostris). Recovery of these damaged habitats relies on water quality assessments over a long period of time. With the absence of long-term diet and water quality data, manatee bones will serve as proxies for environmental reconstruction. Isotopic composition of skeletal nitrogen (N) reflects plants that manatees consume and the predominant N source driving primary productivity within the ecosystem. Sewage, as a consequence of rapid coastal development, is isotopically distinct from natural sources of N. Thus, delta15N values are predicted to increase over time and would be highest in densely-populated areas. Collagen in manatee bones were analyzed from 173 necropsied individuals since 1975. Mean δ15N values have decreased from 8.8 / in the 1970s to 6.3 / in 2010 mainly because fertilizer is the source of depleted N. Coastal and regional mean δ15N values were very high, suggesting a mixing of enriched N sources that include sewage and atmospheric deposition.
Ergebnisse paläobotanischer Untersuchungen zur Stratigraphie und Ökologie des Würms im Oberrheingraben zwischen Karlsruhe und Mannheim
Creators: name: Küttel, Meinrad
name: Löscher, Manfred
name: Hölzer, Adam
Publisher: name: Geozon Science Media
Year: 1986

description: Mit paläobotanischen Untersuchungen (Pollen- und Großrestanalysen) am Profil Rösbach, nw Leimen, konnte ein Mittelwürm-Stadial überleitend zu einem föhrenreichen Mittelwürm-Interstadial nachgewiesen werden. Das Interstadial ist am ehesten mit Hengelo zu korrelieren. Die gefundene Verlandungsfolge zeigt einen Wechsel von einem kalkreichen stehenden Gewässer zu einem basenreichen Niedermoor. In verschiedenen Einzelproben aus 10 bis 34 m Tiefe unter dem Grundwasserspiegel wurden Waldpollenspektren mit hohem Koniferenanteil und geringerem Anteil an Pollen mesophiler Laubhölzer gefunden. Die zeitliche Stellung dieser Einzelproben ist nicht klar. Im Vergleich zur Grande Pile kommen Ende Eem, St. Germain I und St. Germain II in Frage.
description: research
Nonlinearity of the field induced by a rotating superconducting shell
Creators: name: Berger, Jorge
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: For a thin superconducting shell with cylindrical symmetry, the magnetic field generated by its rotation is easily evaluated in the Ginzburg-Landau framework. We compare this field with the result that is obtained by using the London theory.
description: 3 pages
Die Torfindustrie in Niedersachsen – Ergebnisse einer Umfrage zur Zukunft der Torfgewinnung in Niedersachsen
The peat industry in Niedersachsen – results of a survey on the future of peat extraction in Niedersachsen
Creators: name: Schmatzler, Eckhard
Publisher: name: FID GEO
Year: 2012

description: Abstract: A survey of the Association of Peat Extraction Companies in Niedersachsen (BTH in IVG) was conducted in December 2011 and January 2012 to gain an in-depth picture of the resource situation. The results of the survey reveal the current and future situation of the peat industry. The secure peat reserves of the whole of the federal republic of Germany are also shown because, with the exception of a few small peat extraction areas in other German states, peat is exclusively extracted in Niedersachsen. The survey was conducted at almost all of the peat extracting companies in Niedersachsen. Figures were collected on aspects including the size of the current extraction areas, and a forecast of the amount of peat to be produced from these areas every year between 2011 and 2040. There is also a discussion of the development of peat extraction in the 19th and 20th centuries, and the start of peatland protection measures, to provide a background to the secure volumes of resources still available to the remaining extraction companies for the future extraction of peat until the middle of this century.
description: Zusammenfassung: Für den Verband der Torfgewinnungsunternehmen in Niedersachsen (BTH im IVG) wurde in den Monaten Dezember 2011 und Januar 2012 eine Befragung durchgeführt, um ein umfassendes Bild von der Rohstoffsituation zu bekommen. Das Ergebnis der Umfrage gibt die aktuelle und künftige Situation der Torfindustrie wieder. Damit werden auch die gesicherten Torfvorräte für die gesamte Bundesrepublik Deutschland aufgezeigt, denn bis auf wenige kleinere Torfgewinnungsflächen in weiteren Bundes - ländern, wird Torf ausschließlich in Niedersachsen gewonnen. Die Datensammlung wurde bei nahezu allen in Niedersachsen tätigen Abbauunternehmen durchgeführt. Dabei wurde u.a. die Größe der aktuellen Abbauflächen und der jährlich auf diesen Flächen geplante Abbau von Torf für den Zeitraum 2011 bis 2040 ermittelt. Neben einem Blick in die Entwicklung der Torf gewinnung vom 19. bis in das 20. Jahrhundert mit Beginn des Moorschutzes, wird der Bogen zu den zukünftig verfügbaren Rohstoffmengen für die noch verbleibenden Abbaubetriebe bis zur Mitte dieses Jahrhunderts gespannt.
description: DFG, SUB Göttingen, DGMT
description: research
Memory of Initial Conditions in Gravitational Clustering
Creators: name: Crocce, M.
name: Scoccimarro, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the nonlinear propagator, a key ingredient in renormalized perturbation theory (RPT) that allows a well-controlled extension of perturbation theory into the nonlinear regime. We show that it can be thought as measuring the memory of density and velocity fields to their initial conditions. This provides a clean definition of the validity of linear theory, which is shown to be much more restricted than usually recognized in the literature. We calculate the nonlinear propagator in RPT and compare to measurements in numerical simulations, showing remarkable agreement well into the nonlinear regime. We also show that N-body simulations require a rather large volume to recover the correct propagator, due to the missing large-scale modes. Our results for the nonlinear propagator provide an essential element to compute the nonlinear power spectrum in RPT.
description: 19 pages, 7 figures. Corrects Figs.7 and 11 in published version
Dynamic Budget Management with Service Guarantees for Mixed-Criticality Systems
Creators: name: Gu, Xiaozhe
name: Easwaran, Arvind
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: Many existing studies on mixed-criticality (MC) scheduling assume that low-criticality budgets for high-criticality applications are known apriori. These budgets are primarily used as guidance to determine when the scheduler should switch the system mode from low to high. Based on this key observation, in this paper we propose a dynamic MC scheduling model under which low-criticality budgets for individual high-criticality applications are determined at runtime as opposed to being fixed offline. To ensure sufficient budget for high-criticality applications at all times, we use offline schedulability analysis to determine a system-wide total low-criticality budget allocation for all the high-criticality applications combined. This total budget is used as guidance in our model to determine the need for a mode-switch. The runtime strategy then distributes this total budget among the various applications depending on their execution requirement and with the objective of postponing mode-switch as much as possible. We show that this runtime strategy is able to postpone mode-switches for a longer time than any strategy that uses a fixed low-criticality budget allocation for each application. Finally, since we are able to control the total budget allocation for high-criticality applications before mode-switch, we also propose techniques to determine these budgets considering system-wide objectives such as schedulability and service guarantee for low-criticality applications.
description: \copyright 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
The Impact of Competition Location and Gender on Individual Perception of Team Emotion, Control, and Collective Efficacy
Creators: name: Weller, Lindsey Kristine
Publisher: name: American University
Year: 2023

description: This study investigated the effects of location, gender, and team win percentage, on perceived team anxiety, dejection, excitement, anger, happiness, team control, external control, environmental factors control, ability, effort, persistence, preparation, unity, and total collective efficacy (TCE), for field hockey (N=34), soccer (N=12), and lacrosse athletes (N=19). Data was collected ninety minutes before home and away competitions. Athletes reported more team anxiety, anger, and excitement before home games, and more team ability, persistence, preparation, unity, and TCE before away games. Women had more similar home/away ratings than men for effort, persistence, preparation, unity, and TCE. For women, team win percentage was predictive of dejection, excitement, happiness, effort, persistence, preparation, and TCE. For men, it was predictive of team control, external control, and environmental factors control. Location, gender, and team success affect the psychology of athletes before competition, but not always as expected.
title: Pity and anger in the poetry of William Blake from 'Poetical sketches' to 'Milton'
Creators: name: Edgar, Brian Windsor
Publisher: name: The Open University
Year: 1996

description: This thesis gives an account of the ideas about pity and anger in Blake's poetry from Poetical Sketches to Milton, placing them in their historical and intellectual contexts. Chapter 1 introduces the main themes, arguing that Blake saw himself as a counter-ideologist, working to change social and individual 'structures of feeling'. It suggests that his ideas were influenced by his class position, by the French Revolution, and by developments in eighteenth-century thinking. Chapter 2 shows that in the early work Blake engages with problems of male identity that will concern him throughout his career and provide another context for his thinking about anger and pity. Chapter 3 deals with the impasse of the late 1780s. The fourth Chapter claims that Songs of Innocence represents Blake's attempt to create a kind of compassion that will lead to and then characterise a redeeýhed society. The fifth Chapter locates The French Revolution in the Burke debate and points out that 'Let the Brothels of Paris be opened' shows important similarities in its treatment of pity to the speeches and articles of the Jacobin leaders. Chapter 6 contests the views of critics who have unproblematically presented anger as a virtue and pity as a vice in Songs of Experience. Chapter 7 suggests that the ideology of The Marriage of Heaven and Hell is determined by an economic impossibility that creates a politics of feeling rather than of strategies and institutions. Chapters 8 and 9 discuss the Prophetic Books as analyses of the psychology of revolutionary aspiration and failure. Chapter 10 argues that The Four Zoas depicts the reconstitution of a degraded anger and pity that are nevertheless doomed to social failure except in the 'imaginary' of the final apocalypse, while Chapter 11 contextualises the 'Sciences' of Wrath and Pity in Milton. The final Chapter is a short resume and forward glance.
The Impact of Competition Location and Gender on Individual Perception of Team Emotion, Control, and Collective Efficacy
Creators: name: Weller, Lindsey Kristine
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: This study investigated the effects of location, gender, and team win percentage, on perceived team anxiety, dejection, excitement, anger, happiness, team control, external control, environmental factors control, ability, effort, persistence, preparation, unity, and total collective efficacy (TCE), for field hockey (N=34), soccer (N=12), and lacrosse athletes (N=19). Data was collected ninety minutes before home and away competitions. Athletes reported more team anxiety, anger, and excitement before home games, and more team ability, persistence, preparation, unity, and TCE before away games. Women had more similar home/away ratings than men for effort, persistence, preparation, unity, and TCE. For women, team win percentage was predictive of dejection, excitement, happiness, effort, persistence, preparation, and TCE. For men, it was predictive of team control, external control, and environmental factors control. Location, gender, and team success affect the psychology of athletes before competition, but not always as expected.
Charge Radii of the Meson and Baryon Octets in Quenched and Partially Quenched Chiral Perturbation Theory
Creators: name: Arndt, Daniel
name: Tiburzi, Brian C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the electric charge radii of the SU(3) pseudoscalar mesons and the SU(3) octet baryons in quenched and partially quenched chiral perturbation theory. We work in the isospin limit, up to next-to-leading order in the chiral expansion, and to leading order in the heavy baryon expansion. The results are necessary for the extrapolation of future lattice calculations of meson and baryon charge radii. We also derive expressions for the nucleon and pion charge radii in SU(2) flavor away from the isospin limit.
description: 19 pages, 4 eps figures, revtex4; minor changes, typos corrected, version to appear in Physical Review D