cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Longitudinal Spin Asymmetry and Cross Section of Inclusive pi0 Production in Polarized p+p Collisions at RHIC
Creators: name: Simon, Frank
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first measurement of the cross section and the double longitudinal spin asymmetry of inclusive pi0 production in polarized p+p collisions at Sqrt(s) = 200 GeV at mid-rapidity with the STAR detector, using the barrel electromagnetic calorimeter. The measured cross section is compared to NLO pQCD calculations and can provide constraints on the pion fragmentation functions. Fragmentation is studied directly by measuring the momentum fraction of pi0 in jets, a quantity that is affected by the fragmentation process and jet reconstruction effects. The double longitudinal spin asymmetry is compared to NLO pQCD calculations based on different assumptions for the gluon polarization in the nucleon to provide constraints on delta g/g. At the present level of statistics the measured asymmetry disfavors a large positive gluon polarization, but can not yet distinguish between other scenarios.
description: 4 pages, 2 figures, submitted to the proceedings of the 17th International Spin Physics Symposium (SPIN2006), Kyoto, Japan, October 2 to 7, 2006
Indoor environmental quality (IEQ) in healthcare facilities: A systematic literature review and gap analysis
Creators: name: Ackley, A
name: Olanrewaju, Oludolapo
name: Oyefusi, Oluwatobi
name: Enegbuma, Wallace
name: Olaoye, TS
name: Ehimatie, AE
name: Ukpong, E
name: Akpan-Idiok, P
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 3301
subject: Architecture
subject: FOS: Civil engineering
classificationCode: 4005
subject: Civil engineering
classificationCode: 3302
subject: Building
classificationCode: 33
subject: Built environment and design

description: Numerous studies have examined the connection between indoor environmental quality (IEQ) and health in various healthcare settings. However, it remains uncertain whether these findings are consistent across a wide array of healthcare environments and for the diverse IEQ elements such as daylighting, thermal comfort, acoustics, and indoor air quality. As a result, this study aims to holistically assess the impact of IEQ elements on healthcare facilities with a focus on patient and staff outcomes and identify the gaps in knowledge within the domain. The study applied a qualitative research approach, including a systematic literature review from the last three decades, covering four major databases (PubMed, Scopus, ScienceDirect, and Web of Science). The collective body of research consistently demonstrates that favourable IEQ positively impacts patient recovery, reduces stress levels, shortens hospital stays, and enhances staff effectiveness in care delivery. Nevertheless, a notable research gap exists concerning the combined effects of IEQ on healing outcomes, particularly between purpose-built and non-purpose-built healthcare facilities. To bridge this gap, we propose adopting an evidence-based design approach to understand the relationship between a hospital's indoor environment and the well-being of both patients and staff, with a specific focus on architectural considerations. The study also proposes a conceptual framework that helps understand the dynamics of IEQ elements in healthcare facilities. The outcomes of this review offer valuable insights for researchers, policymakers, and building and healthcare professionals, facilitating the enhancement of IEQ design guidelines and standards tailored to healthcare facilities.
Lorenz Winkler-Horaček, Monster in der frühgriechischen Kunst. Die Überwindung des Unfassbaren
Creators: name: Dietrich, Nikolaus
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Lorenz Winkler-Horaček, Monster in der frühgriechischen Kunst. Die Überwindung des Unfassbaren. ICON – Image & Context Bd. 4. Berlin/New York: De Gruyter 2015, XIV+704 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Correlation Effects in the Triangular Lattice Single-band System Li_xNbO_2
Creators: name: Lee, K. -W.
name: Kunes, J.
name: Scalettar, R. T.
name: Pickett, W. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Superconductivity in hole-doped Li_xNbO_2 has been reported with T_c ~ 5 K in the range 0.45 < x < 0.8. The electronic structure is based on a two-dimensional triangular Nb lattice. The strong trigonal crystal field results in a single Nb d(z^2) band isolated within a wide gap, leading to a single-band triangular lattice system. The isolated, partially filled band has a width W=1.5 eV with dominant second neighbor hopping. To identify possible correlation effects, we apply DMFT(QMC) using on-site Coulomb repulsion U=0-3 eV, and check selected results using determinant QMC. For U as small as 1 eV, the single particle spectrum displays a robust lower Hubbard band, suggesting the importance of correlation effects in Li_xNbO_2 even for U < W. At half-filling (x=0), a Mott transition occurs at U_c ~ 1.5 eV. Coupling between the O A_g phonon displacement and correlation effects is assessed.
description: 9 pages, 7 figures
Operational, Embodied and Whole Life Cycle Assessment Credits in Green Building Certification Systems: Desktop Analysis and Natural Language Processing Approach
Creators: name: Olanrewaju, Oludolapo
name: Enegbuma, Wallace
name: Donn, Michael
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 40
subject: Engineering
classificationCode: 3302
subject: Building
subject: FOS: Civil engineering
classificationCode: 33
subject: Built environment and design

description: Globally, the issue of climate change is becoming increasingly significant due to the rapid change in weather
conditions, and the construction industry contributes significantly to this. Green building certification systems
(GBCS) are vital for ensuring sustainable practices in the construction industry. As a result, it is essential to
guarantee the effectiveness of the GBCS to capture adequate information on environmental impacts throughout
the building life cycle and ensure best practices. However, limited works have holistically studied the operational,
embodied and whole life cycle assessment (OEW) credits in GBCS. Therefore, this current study seeks to
address the gap by critically assessing the OEW credits in notable GBCS to determine areas of strengths and
weaknesses. This study applied desktop analysis and document similarity techniques of natural language processing
to assess the technical manuals of the GBCS. Five GBCS (LEED, BREEAM, Green Star NZ, LOTUS and
GREENSL) were selected from developed and developing countries, and the newly developed GBCS (IGBT and
BSAM) were selected to have both perspectives. The analysis revealed that operational credits were given more
attention compared to embodied credits. It is observed that waste-related credits are not prioritised. In addition,
the concept of circular economy is yet to gain attention in the existing GBCS. Also, the document similarity
among the GBCS indicates that the GBCS have some level of similarity. However, the LOTUS and BSAM certification
systems were observed to have low similarity compared to other GBCS. The research proposed an
improvement framework to enhance the effectiveness of the GBCS.
Nonlinear modes for the Gross-Pitaevskii equation -- demonstrative computation approach
Creators: name: Alfimov, G. L.
name: Zezyulin, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A method for the study of steady-state nonlinear modes for Gross-Pitaevskii equation (GPE) is described. It is based on exact statement about coding of the steady-state solutions of GPE which vanish as $x\to+\infty$ by reals. This allows to fulfill {\it demonstrative computation} of nonlinear modes of GPE i.e. the computation which allows to guarantee that {\it all} nonlinear modes within a given range of parameters have been found. The method has been applied to GPE with quadratic and double-well potential, for both, repulsive and attractive nonlinearities. The bifurcation diagrams of nonlinear modes in these cases are represented. The stability of these modes has been discussed.
description: 21 pages, 6 figures
Buchsbaumness and Castelnuovo-Mumford regularity of non-smooth monomial curves
Creators: name: Lam, Tran Thi Gia
name: Trung, Ngo Viet
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13F65, 14H20

description: Projective monomial curves correspond to rings generated by monomials of the same degree in two variables. Such rings always have finite Macaulayfication. We show how to characterize the Buchsbaumness and the Castelnuovo-Mumford regularity of these rings by means of their finite Macaulayfication, and we use this method to study the Buchsbaumness and to estimate the Castelnuovo-Mumford regularity of large classes of non-smooth monomial curves in terms of the given monomials.
description: 22 pages
Strongly Hyperbolic Extensions of the ADM Hamiltonian
Creators: name: Brown, J. David
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The ADM Hamiltonian formulation of general relativity with prescribed lapse and shift is a weakly hyperbolic system of partial differential equations. In general weakly hyperbolic systems are not mathematically well posed. For well posedness, the theory should be reformulated so that the complete system, evolution equations plus gauge conditions, is (at least) strongly hyperbolic. Traditionally, reformulation has been carried out at the level of equations of motion. This typically destroys the variational and Hamiltonian structures of the theory. Here I show that one can extend the ADM formalism to (i) incorporate the gauge conditions as dynamical equations and (ii) affect the hyperbolicity of the complete system, all while maintaining a Hamiltonian description. The extended ADM formulation is used to obtain a strongly hyperbolic Hamiltonian description of Einstein's theory that is generally covariant under spatial diffeomorphisms and time reparametrizations, and has physical characteristics. The extended Hamiltonian formulation with 1+log slicing and gamma--driver shift conditions is weakly hyperbolic.
description: This version contains minor corrections and clarifications. The format has been changed to conform with IOP style
Challenges in life cycle assessment implementation for construction environmental product declaration development: A mixed approach and global perspective
Creators: name: Olanrewaju, Oludolapo
name: Enegbuma, Wallace
name: Donn, Michael
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 4104
subject: Environmental management
classificationCode: 41
subject: Environmental sciences
classificationCode: 4404
subject: Development studies

description: Environmental product declaration (EPD) is a valuable data source for building sustainability assessment. Life cycle assessment (LCA) is a critical element of EPD development, and it strongly impacts the reliability of the overall EPD environmental data. The increasing number of published EPDs necessitates a thorough examination of the challenges associated with LCA for EPD development to improve the quality assurance of EPDs. This study applied a mixed research approach, including a systematic literature review, focus group discussion and questionnaire survey to evaluate the challenges in LCA implementation for EPD development. The questionnaire administered to experts from 43 countries globally was analysed using qualitative and quantitative analytical techniques. The analysis showed that 73 % of the respondents are highly concerned about the data quality of LCA in EPD development. The study further revealed twenty-seven (27) significant challenges classified using exploratory factor analysis into seven groups ([1] Data Paucity, [2] Resource-intensive, [3] Data and Research, [4] Knowledge, [5] Methodological Limitations and People, [6] Technology, and [7] Data Integrity). The highly ranked challenges based on mean ranking include “Problems with data availability and quality for LCA”, “Lack of transparency in some of the existing LCA database and tools”, “Lack of country-specific inventory for LCA”, “The complexity and lack of knowledge about the uncertainty of data used in LCA” and “Lack of in-depth understanding and awareness of LCA”. The study also proposed strategies to resolve the challenges and holds vital implications for stakeholders within EPD development. In conclusion, it is observed that LCA for EPD development still faces significant challenges that require a tailored approach to improve the quality of LCA in EPD development.
RECALLED TO LIFE: KNITTING TOGETHER AN INCLUSIVE EDUCATION SYSTEM FOR STUDENTS WITH DYSLEXIA OR A SPECIFIC LEARNING DISABILITY STARTING IN TEACHER PREPARATION
Creators: name: Branson Gmuer, Katharine
Publisher: name: American University
Year: 2023
Subjects: classificationCode: 3901
subject: Curriculum and pedagogy
classificationCode: 390307
subject: Teacher education and professional development of educators
classificationCode: 390407
subject: Inclusive education
classificationCode: 390411
subject: Special education and disability

description: As the field of education strives to create inclusive general education learning environments for students with learning disabilities, including dyslexia, this dissertation of practice investigates implicit biases in pre-service teachers' interactions with these students. The study addresses the problem of grouping and segregating students by ability and critiques arbitrary definitions of "smart" based on literacy scores, classroom assessments, and IQ test results from a historical context. Through a case study simulation activity, pre-service teachers engaged with various instructional methods to identify knowledge gaps in their perception of students with learning disabilities and their role in perpetuating implicit biases. Findings revealed three central themes: knowledge and awareness gaps in critical preservice content, siloed teacher preparation courses, and multiple instructional methods effectively enhanced pre-service teacher reasoning concerning content in a simulation activity. The study highlights the need for a unified teacher preparation curriculum to better equip pre-service teachers in addressing implicit biases, ultimately fostering more inclusive and effective educational practices in general education settings for students with learning disabilities and dyslexia.
Big Three Dragons: A [N II] 122 $μ$m Constraint and New Dust-continuum Detection of A $z = 7.15$ Bright Lyman Break Galaxy with ALMA
Creators: name: Sugahara, Yuma
name: Inoue, Akio K.
name: Hashimoto, Takuya
name: Yamanaka, Satoshi
name: Fujimoto, Seiji
name: Tamura, Yoichi
name: Matsuo, Hiroshi
name: Binggeli, Christian
name: Zackrisson, Erik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new Atacama Large Millimeter/submillimeter Array Band 7 observational results of a Lyman break galaxy at $ z=7.15 $, B14-65666 ("Big Three Dragons"), which is an object detected in [OIII] 88 $\rm{μm}$, [CII] 158 $\rm{μm}$, and dust-continuum emission during the epoch of reionization. Our targets are the [NII] 122 $\rm{μm}$ fine-structure emission line and underlying 120 $\rm{μm}$ dust continuum. The dust continuum is detected with a $ \sim $19$ σ$ significance. From far-infrared spectral energy distribution sampled at 90, 120, and 160 $\rm{μm}$, we obtaine a best-fit dust temperature of $ 40 $ K ($ 79 $ K) and an infrared luminosity of $ \log_{10}(L_{\rm IR}/{\rm L}_\odot)=11.6$ ($12.1$) at the emissivity index $ β= 2.0 $ (1.0). The [NII] 122 $\rm{μm}$ line is not detected. The 3$ σ$ upper limit of the [NII] luminosity is $ 8.1 \times 10^7\ {\rm L}_\odot$. From the [NII], [OIII], and [CII] line luminosities, we use the Cloudy photoionization code to estimate nebular parameters as functions of metallicity. If the metallicity of the galaxy is high ($ Z > 0.4\ {\rm Z}_\odot$), the ionization parameter and hydrogen density are $ \log_{10} U \simeq -2.7\pm0.1$ and $ n_\text{H} \simeq 50$-$250\ {\rm cm}^{-3}$, respectively, which are comparable to those measured in low-redshift galaxies. The nitrogen-to-oxygen abundance ratio, $\rm{N/O}$, is constrained to be sub-solar. At $ Z < 0.4\ {\rm Z}_\odot$, the allowed $ U $ drastically increases as the assumed metallicity decreases. For high ionization parameters, the $\rm{N/O}$ constraint becomes weak. Finally, our Cloudy models predict the location of B14-65666 on the BPT diagram, thereby allowing a comparison with low-redshift galaxies.
description: 17 pages, 13 figures, 2 tables. accepted for publication in ApJ
Gerhard Oberlin, Delphi – das Orakel. Zentrum der antiken Welt. Eine kulturpsychologische Studie
Creators: name: Rosenberger, Veit
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Gerhard Oberlin, Delphi – das Orakel. Zentrum der antiken Welt. Eine kulturpsychologische Studie. Würzburg: Königshausen & Neumann 2015, 286 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Fermi's golden rule for heating in strongly driven Floquet systems
Creators: name: Ikeda, Tatsuhiko N.
name: Polkovnikov, Anatoli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study heating dynamics in isolated quantum many-body systems driven periodically at high frequency and large amplitude. Combining the high-frequency expansion for the Floquet Hamiltonian with Fermi's golden rule (FGR), we develop a master equation termed the Floquet FGR. Unlike the conventional one, the Floquet FGR correctly describes heating dynamics, including the prethermalization regime, even for strong drives, under which the Floquet Hamiltonian is significantly dressed, and nontrivial Floquet engineering is present. The Floquet FGR depends on system size only weakly, enabling us to analyze the thermodynamic limit with small-system calculations. Our results also indicate that, during heating, the system approximately stays in the thermal state for the Floquet Hamiltonian with a gradually rising temperature.
description: 10 pages, 5 figures; Phys. Rev. B accepted version
SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case
Creators: name: Bonneau, Daniel
name: Clausse, J. -M.
name: Delfosse, X.
name: Mourard, D.
name: Cetre, S.
name: Chelli, A.
name: Cruzalèbes, P.
name: Duvert, G.
name: Zins, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In long baseline interferometry, the raw fringe contrast must be calibrated to obtain the true visibility and then those observables that can be interpreted in terms of astrophysical parameters. The selection of suitable calibration stars is crucial for obtaining the ultimate precision of interferometric instruments like the VLTI. We have developed software SearchCal that builds an evolutive catalog of stars suitable as calibrators within any given user-defined angular distance and magnitude around the scientific target. We present the first version of SearchCal dedicated to the bright-object case V<=10; K<=5). Star catalogs available at the CDS are consulted via web requests. They provide all the useful information for selecting of calibrators. Missing photometries are computed with an accuracy of 0.1 mag and the missing angular diameters are calculated with a precision better than 10%. For each star the squared visibility is computed by taking the wavelength and the maximum baseline of the foreseen observation into account.} SearchCal is integrated into ASPRO, the interferometric observing preparation software developed by the JMMC, available at the address: http://mariotti.fr.
Robust principal component analysis via projection pursuit
Creators: name: Patak, Zdenek
Publisher: name: University of British Columbia
Year: 2010

description: In principal component analysis (PCA), the principal components (PC) are linear combinations of the variables that minimize some objective function. In the classical setup the objective function is the variance of the PC's. The variance of the PC's can be easily upset by outlying observations; hence, Chen and Li (1985) proposed a robust alternative for the PC's obtained by replacing the variance with an M-estimate of scale. This approach cannot achieve a high breakdown point (BP) and efficiency at the same time. To obtain both high BP and efficiency, we propose to use MM- and τ-estimates in place of the M-estimate. Although outliers may cause bias in both the direction and the size of the PC's, Chen and Li looked at the scale bias only, whereas we consider both. All proposed robust methods are based on the minimization of a non-convex objective function; hence, a good initial starting point is required. With this in mind, we propose an orthogonal version of the least median of squares (Rousseeuw and Leroy, 1987) and a new method that is orthogonal equivariant, robust and easy to compute. Extensive Monte Carlo study shows promising results for the proposed method. Orthogonal regression and detection of multivariate outliers are discussed as possible applications of PCA.
Estimating Magnetic Filling Factors From Simultaneous Spectroscopy and Photometry: Disentangling Spots, Plage, and Network
Creators: name: Milbourne, T. W.
name: Phillips, D. F.
name: Langellier, N.
name: Mortier, A.
name: Haywood, R. D.
name: Saar, S. H.
name: Cegla, H. M.
name: Cameron, A. Collier
name: Dumusque, X.
name: Latham, D. W.
name: Malavolta, L.
name: Maldonado, J.
name: Thompson, S.
name: Vanderburg, A.
name: Watson, C. A.
name: Buchhave, L. A.
name: Cecconi, M.
name: Cosentino, R.
name: Ghedina, A.
name: Gonzalez, M.
name: Lodi, M.
name: López-Morales, M.
name: Sozzetti, A.
name: Walsworth, R. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: State of the art radial velocity (RV) exoplanet searches are limited by the effects of stellar magnetic activity. Magnetically active spots, plage, and network regions each have different impacts on the observed spectral lines, and therefore on the apparent stellar RV. Differentiating the relative coverage, or filling factors, of these active regions is thus necessary to differentiate between activity-driven RV signatures and Doppler shifts due to planetary orbits. In this work, we develop a technique to estimate feature-specific magnetic filling factors on stellar targets using only spectroscopic and photometric observations. We demonstrate linear and neural network implementations of our technique using observations from the solar telescope at HARPS-N, the HK Project at the Mt. Wilson Observatory, and the Total Irradiance Monitor onboard SORCE. We then compare the results of each technique to direct observations by the Solar Dynamics Observatory (SDO). Both implementations yield filling factor estimates that are highly correlated with the observed values. Modeling the solar RVs using these filling factors reproduces the expected contributions of the suppression of convective blueshift and rotational imbalance due to brightness inhomogeneities. Both implementations of this technique reduce the overall activity-driven RMS RVs from 1.64 m/s to 1.02 m/s, corresponding to a 1.28 m/s reduction in the RMS variation. The technique provides an additional 0.41 m/s reduction in the RMS variation compared to traditional activity indicators.
description: 16 pages, 6 figures, accepted by The Astrophysical Journal
Peter Scholz – Dirk Wiegandt (Hgg.), Das kaiserzeitliche Gymnasion
Creators: name: Kazakidi, Natalia
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Peter Scholz – Dirk Wiegandt (Hgg.), Das kaiserzeitliche Gymnasion. Wissenskultur und gesellschaftlicher Wandel Bd. 34. Berlin: De Gruyter 2015, VI+250 S., 40 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
The dependence of quasar variability on black hole mass
Creators: name: Wold, M.
name: Brotherton, M. S.
name: Shang, Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to investigate the dependence of quasar variability on fundamental physical parameters like black hole mass, we have matched quasars from the QUEST1 Variability Survey with broad-lined objects from the Sloan Digital Sky Survey. The matched sample contains approximately 100 quasars, and the Sloan spectra are used to estimate black hole masses and bolometric luminosities. Variability amplitudes are measured from the QUEST1 light curves. We find that black hole mass correlates with several measures of the variability amplitude at the 99% significance level or better. The correlation does not appear to be caused by obvious selection effects inherent to flux-limited quasar samples, host galaxy contamination or other well-known correlations between quasar variability and luminosity/redshift. We evaluate variability as a function of rest-frame time lag using structure functions, and find further support for the variability--black hole mass correlation. The correlation is strongest for time lags of the order a few months up to the QUEST1 maximum temporal resolution of approximately 2 years, and may provide important clues for understanding the long-standing problem of the origin of quasar optical variability. We discuss whether our result is a manifestation of a relation between characteristic variability timescale and black hole mass, where the variability timescale is typical for accretion disk thermal timescales, but find little support for this. Our favoured explanation is that more massive black holes have larger variability amplitudes, and we highlight the need for larger samples with more complete temporal sampling to test the robustness of this result.
description: 12 pages, 6 figures. Accepted for publication in MNRAS
Fluctuation control of non-thermal orbital order
Creators: name: Grandi, Francesco
name: Eckstein, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Orbitally ordered states exhibit unique features which make them a promising platform for exploring the ultrafast dynamics of long-range order in solids: Their free energy typically has multiple discrete minima, and electric laser fields or selectively excited phonons can exert effective forces that may be used to steer the order parameter through these free energy landscapes. Moreover, their free energy strongly depends on fluctuations, and in some cases restoring forces close to a minimum are exclusively of entropic origin (order-by-disorder mechanisms). This can open pathways to control the dynamics of the order parameter via non-thermal fluctuations. In this work, we study the laser-induced non-equilibrium dynamics in a $120^\circ$ compass model, using time-dependent Ginzburg-Landau theory. We analyze protocols to switch the order parameter between equivalent configurations, with a focus on the interplay between the external force due to the driving field, and the non-thermal entropic forces. In particular, we find that remanent non-thermal fluctuations after some excitation can stabilize the high-symmetry phase even when the homogeneous potential has retrieved its low-temperature form, which facilitates laser-induced switching.
description: 12 pages, 8 figures
RECALLED TO LIFE: KNITTING TOGETHER AN INCLUSIVE EDUCATION SYSTEM FOR STUDENTS WITH DYSLEXIA OR A SPECIFIC LEARNING DISABILITY STARTING IN TEACHER PREPARATION
Creators: name: Branson Gmuer, Katharine
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3901
subject: Curriculum and pedagogy
classificationCode: 390307
subject: Teacher education and professional development of educators
classificationCode: 390407
subject: Inclusive education
classificationCode: 390411
subject: Special education and disability

description: As the field of education strives to create inclusive general education learning environments for students with learning disabilities, including dyslexia, this dissertation of practice investigates implicit biases in pre-service teachers' interactions with these students. The study addresses the problem of grouping and segregating students by ability and critiques arbitrary definitions of "smart" based on literacy scores, classroom assessments, and IQ test results from a historical context. Through a case study simulation activity, pre-service teachers engaged with various instructional methods to identify knowledge gaps in their perception of students with learning disabilities and their role in perpetuating implicit biases. Findings revealed three central themes: knowledge and awareness gaps in critical preservice content, siloed teacher preparation courses, and multiple instructional methods effectively enhanced pre-service teacher reasoning concerning content in a simulation activity. The study highlights the need for a unified teacher preparation curriculum to better equip pre-service teachers in addressing implicit biases, ultimately fostering more inclusive and effective educational practices in general education settings for students with learning disabilities and dyslexia.
Commitment to autogamy in Paramecium blocks mating reactivity : implications for regulation of the sexual pathway and the breeding system
Creators: name: Rahemtullah, Shamsa
Publisher: name: University of British Columbia
Year: 2010

description: The ciliate Paramecium tetraurelia exhibits two major developmental pathways - the vegetative cell cycle and the sexual pathway. The latter manifests itself in two forms -autogamy (self- fertilization) and conjugation (cross-fertilization) between cells of complementary mating types. In the normal life history young cells are immature for autogamy, but enter conjugation readily. Autogamy first occurs normally at about 20 fissions of age and conjugation disappears by 25. This study documents and analyzes the two major phenomena underlying this unusual life history. It shows how their interaction produces the observed pattern of immaturity, maturity, and senescence (Fig. 1). There are two principal findings of this study. First that commitment to autogamy leads to rapid loss of mating reactivity and second, that there are different starvation thresholds for initiation of mating reactivity and autogamy. The starvation threshold for initiation of mating reactivity is constant, while that for initiation of autogamy decreases progressively as clonal age increases. During the immature period for autogamy the lag between onset of mating reactivity and induction of autogamy decreases with increasing clonal age. The progressive decrease in the starvation threshold required for induction of autogamy brings about the end of the mature period for conjugation. As autogamy is initiated at progressively earlier stages in the growth of a culture, fewer and fewer cells reach the level of starvation required for initiation of mating reactivity prior to induction of autogamy. When the threshold for induction of autogamy becomes so low that no cells develop mating reactivity prior to entering autogamy, the period of maturity for conjugation is over and autogamy becomes the sole sexual process for the remainder of the life history.
Esther Eidinow – Julia Kindt (Hgg.), The Oxford Handbook of Ancient Greek Religion
Creators: name: Künzer, Isabelle
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Esther Eidinow – Julia Kindt (Hgg.), The Oxford Handbook of Ancient Greek Religion. Oxford: Oxford University Press 2015, XXII+708 S., 17 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Nikoletta Kanavou, The Names of Homeric Heroes. Problems and Interpretations
Creators: name: Bär, Silvio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Nikoletta Kanavou, The Names of Homeric Heroes. Problems and Interpretations. Sozomena Bd. 15. Berlin/Boston: De Gruyter 2015, XII + 187 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Rafał Kosiński, Holiness and Power. Constantinopolitan Holy Men and Authority in the 5th Century
Creators: name: Lambrecht, Ulrich
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Rafał Kosiński, Holiness and Power. Constantinopolitan Holy Men and Authority in the 5th Century. Millennium-Studien Bd. 57. Berlin/Boston: De Gruyter 2016, XIV + 270 S., 2 Karten
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Ursula Vedder, Der Koloss von Rhodos. Archäologie, Herstellung und Rezeptionsgeschichte eines antiken Weltwunders
Creators: name: Nöth, Matthias R.
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Ursula Vedder, Der Koloss von Rhodos. Archäologie, Herstellung und Rezeptionsgeschichte eines antiken Weltwunders. Mainz am Rhein: Nünnerich-Asmus Verlag 2015, 168 S., 84 Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Simonetta Bonomi – Martin A. Guggisberg (Hgg.), Griechische Keramik nördlich von Etrurien. Mediterrane Importe und archäologischer Kontext
Creators: name: Olivier-Trottenberg, Yasmin
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Simonetta Bonomi – Martin A. Guggisberg (Hgg.), Griechische Keramik nördlich von Etrurien. Mediterrane Importe und archäologischer Kontext. Internationale Tagung Basel 14.-15. Okober 2011. Wiesbaden: Reichert 2015, 232 S., 72 farb. Abb., 82 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
Life Cycle Assessment of Ordinary Portland Cement Production in South Africa: Mid-Point and End-Point Approaches
Creators: name: Akintayo, BD
name: Olanrewaju, OA
name: Olanrewaju, Oludolapo
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 4104
subject: Environmental management
classificationCode: 41
subject: Environmental sciences
classificationCode: 3302
subject: Building
subject: FOS: Civil engineering
classificationCode: 33
subject: Built environment and design

description: Several environmental impacts are associated with cement production, ranging from high greenhouse gas (GHG) levels to high energy consumption (fossil fuel and electricity) to high resource usage. Due to the growing demand for cement in the industry and limited studies in South Africa, it is essential to evaluate the environmental impact of cement production in the South African context. In this study, an analysis of the production model of South African (SA) cement plants was carried out to quantify its impacts and decipher how they consequently affect lives, resources, and the ecosystem. This study carried out a Life Cycle Assessment (LCA) of cement using both the mid-point and end-point approaches of the Life Cycle Impact Assessment (LCIA). This study carried out a cradle-to-gate analysis of 1 kg of cement produced in a typical SA plant. The result showed that for every 1 kg of cement produced, 0.993 CO2 eq was emitted into the atmosphere; 98.8% was actual CO₂ emission, and its resultant effect was global warming, which causes changes in climatic conditions. Also, 1.6 kg of 1,4-Dichlorobenzene (1,4-DCB) eq was emitted into the air and water, which caused high toxicity in these media, and for every 1 kg of cement produced, 0.139 kg of oil eq was produced, and its effect was seen in fossil resources’ scarcity. The end-point result showed that 55,404 was the potential number of human lives that could be endangered annually; 133 species had the potential to be endangered annually, and the effect of a potential scarcity of resources caused a total marginal price increase of ZAR 6.2 billion due to these damages. In conclusion, this study prescribed mitigation and adaptation strategies to counter these environmental impacts.
Thresholds for Particle Clumping by the Streaming Instability
Creators: name: Li, Rixin
name: Youdin, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The streaming instability (SI) is a mechanism to aerodynamically concentrate solids in protoplanetary disks and trigger the formation of planetesimals. The SI produces strong particle clumping if the ratio of solid to gas surface density -- an effective metallicity -- exceeds a critical value. This critical value depends on particle sizes and disk conditions such as radial drift-inducing pressure gradients and levels of turbulence. To quantify these thresholds, we perform a suite of vertically-stratified SI simulations over a range of dust sizes and metallicities. We find a critical metallicity as low as 0.4% for the optimum particle sizes and standard radial pressure gradients (normalized value of $Π= 0.05$). This sub-Solar metallicity is lower than previous results due to improved numerical methods and computational effort. We discover a sharp increase in the critical metallicity for small solids, when the dimensionless stopping time (Stokes number) is $\leq 0.01$. We provide simple fits to the size-dependent SI clumping threshold, including generalizations to different disk models and levels of turbulence. We also find that linear, unstratified SI growth rates are a surprisingly poor predictor of particle clumping in non-linear, stratified simulations, especially when the finite resolution of simulations is considered. Our results widen the parameter space for the SI to trigger planetesimal formation.
description: Accepted by ApJ and published online (with one interactive figure)
The interaction between radio lobes and hot gas in the nearby radio galaxies 3C285 and 3C442A
Creators: name: Hardcastle, M. J.
name: Kraft, R. P.
name: Worrall, D. M.
name: Croston, J. H.
name: Evans, D. A.
name: Birkinshaw, M.
name: Murray, S. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Chandra observations of two nearby radio galaxies in group environments, 3C285 and 3C442A. The host galaxies of both sources are involved in mergers with nearby massive galaxies, and the hot gas in the systems is extended along lines joining the interacting galaxies. Both sources show strong evidence for interactions between the radio lobes and the asymmetrical hot gas. We argue that the structure in the hot gas is independent of the existence of the radio lobes in these systems, and argue that hot gas shaped by an ongoing massive galaxy merger may play an important role in the dynamics of radio lobes in other objects. For 3C442A, our observations show that gas is being driven out of both members of the host interacting galaxy pair, and the implied constraints on galaxy velocities are consistent with mildly supersonic motions with respect to the group-scale hot gas. The previously known filamentary radio structure in the center of 3C442A may be a result of the interaction between hot gas expelled from these galaxies and pre-existing radio-emitting plasma. In 3C285, where there is no ongoing galaxy merger, the powerful radio source is probably having a significant effect on the energetics of the host group.
description: 43 pages, 8 figures. Accepted by ApJ. Some figures reduced in quality
Scaling properties of the optical conductivity of Bi-based cuprates
Creators: name: van der Marel, D.
name: Carbone, F.
name: Kuzmenko, A. B.
name: Giannini, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present novel infrared optical conductivity data on the three layer high Tc superconductor Bi2Sr2Ca2Cu3O10 at optimal doping. We extend the analysis of an earlier publication, providing a universal scaling function sigma(omega,T)=g(omega/T)/T for the optical conductivity. In the present manuscript we obtain a good scaling collapse of the experimental curves on the g(omega/T) over a wide range of values of omega/T (at least in range 0 to 10), if we assume that g(omega/T) is superimposed on a non-universal background which is temperature independent. We obtain the same result, if in our analysis we allow this background to have a T-squared temperature dependent correction. The most striking property of g(omega/T) is, that it corresponds to a scattering rate which varies linearly as a function of temperature, but which is independent of the frequency.
description: 17 pages, 10 figures, elsart
Development of a novel performance evaluation framework for implementing regenerative practices in construction
Creators: name: Oyefusi, Oluwatobi
name: Enegbuma, Wallace
name: Brown, Andre
name: Olanrewaju, Oludolapo
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 41
subject: Environmental sciences
classificationCode: 3302
subject: Building
subject: FOS: Civil engineering
classificationCode: 33
subject: Built environment and design
classificationCode: 44
subject: Human society

description: While sustainable construction practices effectively reduce environmental impact, their exclusive focus on environmental, economic, and social goals limits their ability to actively foster positive transformation and ecosystem restoration. Addressing the growing challenges in the built environment necessitates a shift to regenerative practices within the construction industry. Unlike sustainability, regenerative practices go beyond the concept of merely sustaining the status quo; they are geared towards actively enhancing and restoring the built environment over time. However, implementing these practices is less prominent in the construction industry due to the absence of a suitable tool for evaluating their expected performance outcomes. This study bridges this gap by introducing a novel performance evaluation framework for implementing regenerative construction practices, establishing a benchmark for implementation. Through an extensive literature review and data collection from a committee of regenerative outcome leads, we employ the Fuzzy Analytical Hierarchical Process (FAHP) to establish interconnections among key regenerative performance criteria. Results highlight the dominant significance of “Healthy, more resilient, and connected communities,” surpassing other criteria like “Thriving and prosperous natural systems,” “Prosperous and resilient local economies,” and “Net-positive environmental development.” The proposed evaluation framework offers theoretical and practical implications, fostering a new theoretical approach that exceeds sustainability standards and provides tangible guidance for construction decision-makers.
Two- and three-particle azimuthal correlations of high-pt charged hadrons in Pb-Au collisions at 158A GeV/c
Creators: name: Kniege, Stefan
name: Ploskon, Mateusz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Azimuthal correlations of hadrons with high transverse momenta serve as a measure to study the energy loss and the fragmentation pattern of jets emerging from hard parton-parton interactions in heavy ion collisions. Preliminary results from the CERES experiment on two- and three-particle correlations in central Pb-Au collisions are presented. A strongly non-Gaussian shape on the away-side of the two-particle correlation function is observed, indicating significant interactions of the emerging partons with the medium. Mechanisms like deflection of the initial partons or the evolution of a mach cone in the medium can lead to similar modifications of the jet structure on the away-side. An analysis based on three-particle correlations is presented which helps to shed light on the origin of the observed away-side pattern.
description: 4 pages, 2 figures, contribution to the Quark Matter conference 2006
Robert A. Kaster (Hg.), C. Suetoni Tranquilli de Vita Caesarum Libri VIII et de Grammaticis et Rhetoribus Liber
Creators: name: Ohst, Henning
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Robert A. Kaster (Hg.), C. Suetoni Tranquilli de Vita Caesarum Libri VIII et de Grammaticis et Rhetoribus Liber. Oxford Classical Texts. Oxford: Oxford University Press 2016, LXXX+487 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 20 (2017): Göttinger Forum für Altertumswissenschaft
The roles of latent heating and dust in the structure and variability of the northern Martian polar vortex
Creators: name: Ball, E. R.
name: Mitchell, D. M.
name: Seviour, W. J. M.
name: Thomson, S. I.
name: Vallis, G. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The winter polar vortices on Mars are annular in terms of their potential vorticity (PV) structure, a phenomenon identified in observations, reanalysis and some numerical simulations. Some recent modeling studies have proposed that condensation of atmospheric carbon dioxide at the winter pole is a contributing factor to maintaining the annulus through the release of latent heat. Dust and topographic forcing are also known to be causes of internal and interannual variability in the polar vortices. However, coupling between these factors remains uncertain, and previous studies of their impact on vortex structure and variability have been largely limited to a single Martian global climate model (MGCM). Here, by further developing a novel MGCM, we decompose the relative roles of latent heat and dust as drivers for the variability and structure of the northern Martian polar vortex. We also consider how Martian topography modifies the driving response. By also analyzing a reanalysis dataset we show that there is significant dependence in the polar vortex structure and variability on the observations assimilated. In both model and reanalysis, high atmospheric dust loading (such as that seen during a global dust storm) can disrupt the vortex, cause the destruction of PV in the low-mid altitudes (> 0.1 hPa), and significantly reduce spatial and temporal vortex variability. Through our simulations, we find that the combination of dust and topography primarily drives the eddy activity throughout the Martian year, and that although latent heat release can produce an annular vortex, it has a relatively minor effect on vortex variability.
description: 16 pages, 14 figures, The Planetary Science Journal