cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Navigating Blackness in Educational Psychology: Reflections of a Trainee Educational Psychologist
Creators: name: Wright, R.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: The voices of racialised individuals in educational psychology are suppressed in the United Kingdom (UK). The experiences of educational psychologists (EPs) from under-represented groups can make a valuable contribution to the assemblage of voices in the profession. This article is a provocation of educational psychology, with the ambition of evoking various feelings for the audience. I take the reader on a personal journey of reconstructing educational psychology through the lens of psychopolitics, critical race theory and postcolonial theory. These theories draw on the structural and psychological effects of colonialism to interrogate present ways of living. Firstly, I draw on my experiences of estrangement whilst completing the educational psychology training course. This consequently led to feeling isolated in navigating my relationship with educational psychology. I call for course tutors to support trainee educational psychologists (TEPs) through the sense-making process of racialisation, which can be an embodied experience and often unspoken. Secondly, I draw on the histories of educational psychology, particularly scientific racism to consider the ongoing “hauntings” of colonialism in practice, which may contribute to some of the feelings of displacement. I invite EPs on this journey with me, to consider their positioning in relation to colonialism and psychology. The implications for educational psychology are considered, including the need to resurrect the relationship between educational psychology and racialisation. I conclude by embracing the term “conscientization”, as a way of mobilising change in the profession. This article is a reflective piece, mindfully written, using less-typical academic journal styles to make it accessible and avoid marginalising others.
Shifted unitary orthogonal methods for the overlap inversion
Creators: name: Borici, Artan
name: Allkoci, Alban
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this work we compare the convergence of the shifted unitary orthogonal method (SUOM) and different Krylov subspace solvers for propagator computations with overlap fermions. We show that the SUOM algorithm performs similarly to the shifted unitary minimal residual method (SUMR) with the latter converging slightly faster. When the geometric optimality is applied to SUOM we get e new algorithm which is faster than SUMR.
description: 6 pages, 4 figures, Lattice 2005 (Machines and algorithms)
An ultra-long and quite thin coronal loop without significant expansion
Creators: name: Li, Dong
name: Yuan, Ding
name: Goossens, Marcel
name: Van Doorsselaere, Tom
name: Su, Wei
name: Wang, Ya
name: Su, Yang
name: Ning, Zongjun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Coronal loops are the basic building blocks of the solar corona, which are related to the mass supply and heating of solar plasmas in the corona. However, their fundamental magnetic structures are still not well understood. Most coronal loops do not expand significantly, whereas the diverging magnetic field would have an expansion factor of about 5-10 over one pressure scale height. Aims. In this study, we investigate a unique coronal loop with a roughly constant cross section, it is ultra long and quite thin. A coronal loop model with magnetic helicity is presented to explain the small expansion of the loop width. Methods. This coronal loop was predominantly detectable in the 171 A channel of the Atmospheric Imaging Assembly (AIA). Then, the local magnetic field line was extrapolated by a Potential-Field-Source-Surface model. Finally, the differential emission measure analysis made from six AIA bandpasses was applied to obtain the thermal properties of this loop. Results. This coronal loop has a projected length of roughly 130 Mm, a width of about 1.5 +(-) 0.5 Mm and a lifetime of around 90 minutes. It follows an open magnetic field line. The cross section expanded very little (i.e., 1.5-2.0) along the loop length during its whole lifetime. This loop has a nearly constant temperature at about 0.7 +(-) 0.2 MK, whereas its density exhibits the typical structure of a stratified atmosphere. Conclusions. We use a thin twisted flux tube theory to construct a model for this non-expanding loop, and find that indeed with sufficient twist a coronal loop can attain equilibrium. However, we can not rule out other possibilities such as footpoint heating by small-scale reconnection, elevated scale height by a steady flow along the loop etc.
description: 8 pages, 5 figures, 1 tables
The Domain Chaos Puzzle and the Calculation of the Structure Factor and Its Half-Width
Creators: name: Becker, Nathan
name: Ahlers, Guenter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The disagreement of the scaling of the correlation length xi between experiment and the Ginzburg-Landau (GL) model for domain chaos was resolved. The Swift-Hohenberg (SH) domain-chaos model was integrated numerically to acquire test images to study the effect of a finite image-size on the extraction of xi from the structure factor (SF). The finite image size had a significant effect on the SF determined with the Fourier-transform (FT) method. The maximum entropy method (MEM) was able to overcome this finite image-size problem and produced fairly accurate SFs for the relatively small image sizes provided by experiments. Correlation lengths often have been determined from the second moment of the SF of chaotic patterns because the functional form of the SF is not known. Integration of several test functions provided analytic results indicating that this may not be a reliable method of extracting xi. For both a Gaussian and a squared SH form, the correlation length xibar=1/sigma, determined from the variance sigma^2 of the SF, has the same dependence on the control parameter epsilon as the length xi contained explicitly in the functional forms. However, for the SH and the Lorentzian forms we find xibar ~ xi^1/2. Results for xi determined from new experimental data by fitting the functional forms directly to the experimental SF yielded xi ~ epsilon^-nu} with nu ~= 1/4 for all four functions in the case of the FT method, but nu ~= 1/2, in agreement with the GL prediction, in the the case of the MEM. Over a wide range of epsilon and wave number k, the experimental SFs collapsed onto a unique curve when appropriately scaled by xi.
description: 15 pages, 26 figures, 1 table
Distributed Consistent Multi-Robot Semantic Localization and Mapping
Creators: name: Tchuiev, Vladimir
name: Indelman, Vadim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.9

description: We present an approach for multi-robot consistent distributed localization and semantic mapping in an unknown environment, considering scenarios with classification ambiguity, where objects' visual appearance generally varies with viewpoint. Our approach addresses such a setting by maintaining a distributed posterior hybrid belief over continuous localization and discrete classification variables. In particular, we utilize a viewpoint-dependent classifier model to leverage the coupling between semantics and geometry. Moreover, our approach yields a consistent estimation of both continuous and discrete variables, with the latter being addressed for the first time, to the best of our knowledge. We evaluate the performance of our approach in a multi-robot semantic SLAM simulation and in a real-world experiment, demonstrating an increase in both classification and localization accuracy compared to maintaining a hybrid belief using local information only.
description: 28 pages, 73 figures, for an associated video, see https://youtu.be/jATog1snfwc
Exchange Rate Misalignment and Its Effects on Agricultural Producer Support Estimates: Empirical Evidence from India and China
Creators: name: Cheng, Fuzhi
name: Orden, David
name: Cheng, Fuzhi
name: Orden, David
Publisher: name: Unknown
Year: 2005
Subjects: International Relations/Trade

description: There have been different degrees of exchange rate disequilibrium in the developing countries during transition or reform periods. The level of the exchange rate and its misalignment can have significant impacts on agricultural policy measures such as Producer Support Estimates (PSEs). In the conventional PSE analysis, however, the actual (nominal) exchange rates are used. There is general agreement that the use of actual exchange rates may introduce a bias in the PSE calculations, and that this bias can be substantial in some cases. But there is less agreement on the most appropriate alternative. In this study, we utilize various time series techniques to derive estimates of the equilibrium exchange rates in India and China as determined by real economic fundamentals from the 1950s to the 2000s. The relevance and usefulness of the equilibrium exchange rates in the calculation of PSE for the two countries are then discussed. Drawing on the data sets and analyses developed earlier by Mullen, Orden and Gulati (2005) and Sun (2003), we find that agricultural support levels measured by the PSEs (from 1985-2002 for India and from 1995-2001 for China) are sensitive to alternative exchange rate assumptions. Specifically, exchange rate misalignments have either amplified or counteracted the direct effects from sectoral-specific policies. In India, such indirect effects are relatively small and mostly dominated by the direct effects. But in China, especially in recent years, the indirect effect from exchange rate misalignment (undervaluation) has been quite substantial. Results from this study also show that the effect of the exchange rate depends on the relative importance of different PSE components. The increasing share of budgetary expenditures in India's total agricultural support in recent years has resulted in more pronounced exchange rate effects measured by commodity-specific percentage "PSEs" that use the value of production at international prices as the denominator compared to those measured by commodity-specific percentage Market Price Support (MPS) with the same denominator. For China, the exchange rate effects are more similar between the PSE and the MPS measures because budgetary expenditures have been relatively small. The exchange rate effect when the PSE is "scaled up" from covered commodities to an estimate for the total agricultural sector is also demonstrated. Since the commodity coverage in both countries tends to be incomplete and the scaling-up procedure leads to a total MPS of greater magnitude, larger exchange rate effects are found in the scaled-up than the non-scaled-up version of total PSEs. The impact of scaling-up on the indirect effect is proportional to the share of covered commodities in the total value of agricultural production.
Acanthocybium undetermined
Creators: name: Cicimurri, David J.
name: Ebersole, Jun A.
name: Stringer, Gary L.
name: Starnes, James E.
name: Phillips, George E.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Scombridae
Acanthocybium
Acanthocybium undetermined

description: ? Acanthocybium sp.
Fig. 25I–K
Material examined
UNITED STATES OF AMERICA – Mississippi • 3 isolated teeth; Catahoula Formation; SC 2013.28.577, SC 2013.28.578, SC 2013.28.579 (Fig. 23I–K).
Description
The teeth have a lanceolate profile. The anterior and posterior margins are formed into sharp smooth carinae, each of which extends from the tooth base and coalesces at a rounded apex (Fig. 25I). In anterior and posterior views, the crown is nearly vertical but has a slight lingual curvature, and the carina is located closer to the labial face (Fig. 25J). The lingual face is more convex than the labial face, particularly at the lower one-third. In basal view, the carinae are conspicuously differentiated from the main body of the crown due to the medially convex lingual face, and a deep pulp cavity is visible (Fig. 25K).
Remarks
These specimens differ from the lanceolate Sphyraena sp. teeth (see above) and from teeth assigned to Scomberomorus sp. (see below) by being much thicker labio-lingually and having much more convex labial and (especially) lingual faces. The Catahoula Formation teeth are comparable to those occurring in Acanthocybium premaxillae and a dentary (SC 2016.1.14) that we examined from the late Rupelian Ashley Formation of South Carolina. The premaxillary teeth of the Ashley Formation taxon are two to three times larger than those of the dentary, but the dentary teeth are equally convex labially and lingually. Based on these observations, the Catahoula Formation teeth were located in the premaxilla.
The Catahoula Formation teeth are also similar to specimens identified as Palaeocybium from the Eocene of Alabama (Ebersole et al. 2019), as well as to the Oligocene Neocybium parvidentatum Monsch & Bannikov, 2012 of Europe (see also Leriche 1908). However, Palaeocybium possesses two rows of teeth in the jaws (Monsch 2005), which cannot be determined from the isolated teeth in our Catahoula Formation sample. To our knowledge, Palaeocybium is unknown beyond the Eocene. Jaws of Neocybium and the South Carolina Acanthocybium have only a single row of teeth, with those of the former perhaps being less convex and more widely separated in the jaws (Monsch & Bannikov 2012). We tentatively assign the Catahoula Formation specimens to Acanthocybium due to dental similarities between the Mississippi fossils and the South Carolina Oligocene Acanthocybium.
description: Published as part of Cicimurri, David J., Ebersole, Jun A., Stringer, Gary L., Starnes, James E. & Phillips, George E., 2025, Late Oligocene fishes (Chondrichthyes and Osteichthyes) from the Catahoula Formation in Wayne County, Mississippi, USA, pp. 1-131 in European Journal of Taxonomy 984 (1) on page 85, DOI: 10.5852/ejt.2025.984.2851, http://zenodo.org/record/15126034
Updating the Estimation of the Supply of Storage Model
Creators: name: Zulauf, Carl R.
name: Zhou, Haijiang
name: Roberts, Matthew C.
name: Zulauf, Carl R.
name: Zhou, Haijiang
name: Roberts, Matthew C.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Research Methods/ Statistical Methods
subject: supply of storage
subject: implied volatility
subject: convenience yield

description: An updated supply of storage equation is estimated to reflect recent developments in the theoretical and empirical literature. Among the findings is an inverse relationship between storage cost adjusted price spread and a proxy measure of convenience yield, and a curvilinear relationship between stocks-to-use ratio and implied volatility.
A Note on Stable States of Dipolar Systems at Low Temperatures
Creators: name: Tomita, Yusuke
name: Matsushita, Katsuyoshi
name: Kuroda, Akiyoshi
name: Sugano, Ryoko
name: Takayama, Hajime
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the past several years, many important innovations in nanotechnology were made. Today it becomes possible to make nanosize magnetic particles, and development of high storage-density magnetic device is desired. In such a magnetic particle system, dipole interaction plays the main role. In this note, we consider stable states of dipolar systems at low temperature: Some systems show ``antiferromagnetic structure'', and others show magnetic domain structure, depending on lattice shapes.
description: 5 pages including 5 eps figures, to appear in "Computer Simulation Studies in Condensed Matter Physics XVIII", Eds. D. P. Landau, S. P. Lewis, and H.-B. Sch\"{u}ttler (Springer Verlag, Heidelberg, Berlin)
Visual Art: A Tool for Facilitation of Cultural Competence and Antiracism when Training Helping Professionals
Creators: name: Kusi, J.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: The concept of cultural competence is widely referred to within the helping professions, alongside issues of social and racial identity and the determinants of life outcomes. This article presents a personal account of the experiences of a Black, British, educational psychologist practitioner. From this vantage point, the concept of cultural competence is described drawing on the sense made within the literature. Visual artworks, grounded within the conceptual art movement, are presented as a tool for cultural competence pedagogy, and a psychological interpretation of the works is presented for reflection on issues of race, racism and racial identity. These novel tools are presented with the aim of contributing to the growing body of knowledge and to support a reconceptualisation of the responsibilities of helping professionals’ culturally competent practice. The article concludes with an invitation to colleagues to discuss and collaborate, using the tools presented.
Spectral asymptotics of Pauli operators and orthogonal polynomials in complex domains
Creators: name: Filonov, N.
name: Pushnitski, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 47F05; 35P20; 35J10

description: We consider the spectrum of a two-dimensional Pauli operator with a compactly supported electric potential and a variable magnetic field with a positive mean value. The rate of accumulation of eigenvalues to zero is described in terms of the logarithmic capacity of the support of the electric potential. A connection between these eigenvalues and orthogonal polynomials in complex domains is established.
description: 16 pages
Time Varying Coefficient: An Application of Flexible Least Squares to Cattle Captive Supply
Creators: name: Kim, Man-Keun
name: Lee, Andrew C.
name: Kim, Man-Keun
name: Lee, Andrew C.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Research Methods/ Statistical Methods
subject: time varying coefficient
subject: flexible least squares
subject: structural break
subject: captive supply

description: Although conventional linear regression techniques assume time constancy of parameters time varying coefficient or the problem of structural instability in econometric relationships has been recognized by econometricians. In this study, time varying impact of captive supply on fed cattle cash market price is investigated via flexible least squares approach. Time path of flexible least squares coefficient estimate indicates an approximately four fold increase in price impact of captive supply over the sample period, but even this multiplied price impact is small compared to the effect of boxed beef price which shows negligible time variation. The time path also aids in identification of structural breaks in the price impact of captive supply.
Narratives of High-Attaining African Caribbean Boys: Perceptions of Peer and Family Influences in Education
Creators: name: Robinson, T.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: The underachievement of African Caribbean boys has been the subject of considerable debate and research in education, but few studies focus on this group’s achievements. Difficulties associated with racial identity and masculinity are amongst explanations offered for African Caribbean boys’ educational underachievement, and research has also implicated the peer group’s contributions to undermining academic performance. This study explored the subjective experiences of seven high-attaining African Caribbean boys, aged 14 to 15 from one secondary school, regarding their perceptions of peer influences in school. Participants were given two narrative interviews, two months apart, about their relationships with peers and experiences related to “peer influence” and the impact they consider that this has on their education and attainment. Interviews also addressed the impact of family narratives on the boys at school. The interviews were analysed using Gee’s (1991) structural linguistic narrative approach, which as well as helping to identify narratives also allowed analysis of how the boys performed their identities in co-constructing their narratives with the interviewer. The findings suggest that the boys perceived peers to have some influence on their educational experiences and subsequent attainment, though family influences were stronger on the boys’ educational values. Narratives espoused the positive aspects of peer relationships as being emotionally and practically supportive and helping boys’ motivation to study through competing for high grades. Pupils used multiple and complex strategies to manage their relationships so that they continued to attain well. These included strategic self-presentation, deploying resources and utilising support from teachers and family members. Family racialised narratives were found to play an important role in developing racial identity and academic orientation. Implications for educational psychology practice and pedagogy in schools are discussed.
Stopwords in Technical Language Processing
Creators: name: Sarica, Serhad
name: Luo, Jianxi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: There are increasingly applications of natural language processing techniques for information retrieval, indexing and topic modelling in the engineering contexts. A standard component of such tasks is the removal of stopwords, which are uninformative components of the data. While researchers use readily available stopword lists which are derived for general English language, the technical jargon of engineering fields contains their own highly frequent and uninformative words and there exists no standard stopword list for technical language processing applications. Here we address this gap by rigorously identifying generic, insignificant, uninformative stopwords in engineering texts beyond the stopwords in general texts, based on the synthesis of alternative data-driven approaches, and curating a stopword list ready for technical language processing applications.
An Empirical Examination of Real Options and the Timing of Land Conversions
Creators: name: Towe, Charles A.
name: Nickerson, Cynthia J.
name: Bockstael, Nancy E.
name: Towe, Charles A.
name: Nickerson, Cynthia J.
name: Bockstael, Nancy E.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Land Economics/Use
subject: agricultural preservation programs
subject: real options
subject: land conversion

description: Many studies have examined the effects of land use regulations on land prices and urban spatial form. Increasingly, jurisdictions have adopted incentive based mechanisms, such as purchase of development rights (PDR) programs, to manage the pace and pattern of urban growth and the conversion of agricultural land. PDR programs provide a third option to landowners in urbanizing areas: in addition to deciding whether to develop or not, landowners can decide whether to preserve their land. To our knowledge no studies have explored how the existence of an option to participate in a PDR program affects landowners' development decisions. This research provides empirical evidence of a previously untested prediction of real options theory: that additional options increase the value of waiting to make irreversible decisions. Our paper considers how an additional land use alternative, preservation, conveys a different type of option value and how that option affects the optimal conversion time. We estimate a hazard model and find significant evidence that the option to enter an easement decreases the hazard rate of development by about 40%. The results suggest that PDR programs can provide additional open space and amenity values beyond what is provided on preserved parcels, by delaying development (by at least a few years) of parcels that are not actually preserved.
Experimental noise-resistant Bell-inequality violations for polarization-entangled photons
Creators: name: Bovino, Fabio A.
name: Castagnoli, Giuseppe
name: Cabello, Adan
name: Lamas-Linares, Antia
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate that violations of Bell's inequalities for two-photon polarization-entangled states with colored noise are extremely robust, whereas this is not the case for states with white noise. Controlling the amount of noise by using the timing compensation scheme introduced by Kim et al. [Phys. Rev. A 67, 010301(R) (2003)], we have observed violations even for states with very high noise, in excellent agrement with the predictions of Cabello et al. [Phys. Rev. A 72, 052112 (2005)].
description: REVTeX4, 5 pages, 4 figures
Preparing to Be an Ethically Minded Educational Psychologist: Examining Conceptualisations of Social Justice and a Reflexive Exploration of Values
Creators: name: Mahdi, S.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: This paper originated as an essay written to partially fulfil the requirements of a Professional Doctorate in Educational and Child Psychology. Trainee Educational Psychologists were invited to consider the ethical questions that arise from following the moral principles that underpin the practice of educational psychologists, namely social justice, beneficence and autonomy. The TEP chose to focus on social justice. This was explored by drawing on three theories or principles: Utilitarianism, Rawlsian Redistribution and Communitarianism. These were considered within the context of the diverse communities educational psychologists work with. Vignettes from personal and professional experiences were offered and used by the TEP to explore the sources of her values and to consider how her identity and values influence her work. This reflexive exercise is undertaken in the first term and in the first year of the TEP’s training, in preparation for her becoming the ethically minded psychologist she intends to be.
Chemical evolution: from formamide to nucleobases and amino acids without the presence of catalyst
Creators: name: Enchev, Venelin
name: Angelov, Ivan
name: Dincheva, Ivayla
name: Stoyanova, Nina
name: Slavova, Sofia
name: Rangelov, Miroslav
name: Markova, Nadezhda
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Abiotic synthesis of nucleobases and amino acids is of critical importance as it sheds light on potential prebiotic chemical reactions. During thermal decomposition of formamide in vacuum conditions, purine, cytosine, adenine, hypoxanthine, uracil, pterin, urea, urocanic acid, glycine, alanine and norvaline were detected. The compounds were obtained without catalyst by heating at 100–180 °C or microwave heating of formamide. Reaction network of self-catalyzed chemical reactions is suggested, showing how from only one parent molecule, nucleobases, urea and the amino acid glycine can be produced. The reaction pathways are theoretically determined using SCS-MP2 calculations. Communicated by Ramaswamy H. Sarma
Higher order approximation for stochastic wave equation
Creators: name: Liu, Xing
name: Deng, Weihua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The infinitesimal generator (fractional Laplacian) of a process obtained by subordinating a killed Brownian motion catches the power-law attenuation of wave propagation. This paper studies the numerical schemes for the stochastic wave equation with fractional Laplacian as the space operator, the noise term of which is an infinite dimensional Brownian motion or fractional Brownian motion (fBm). Firstly, we establish the regularity of the mild solution of the stochastic fractional wave equation. Then a spectral Galerkin method is used for the approximation in space, and the space convergence rate is improved by postprocessing the infinite dimensional Gaussian noise. In the temporal direction, when the time derivative of the mild solution is bounded in the sense of mean-squared $L^p$-norm, we propose a modified stochastic trigonometric method, getting a higher strong convergence rate than the existing results, i.e., the time convergence rate is bigger than $1$. Particularly, for time discretization, the provided method can achieve an order of $2$ at the expenses of requiring some extra regularity to the mild solution. The theoretical error estimates are confirmed by numerical experiments.
description: 29 pages, 2 figures
Black Voices Matter: Racial Trauma, Challenging Systemic Oppression and Shifting the Narrative
Creators: name: Agyeman, D.
name: Lichwa, H.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: As educational psychologists (EPs), we are driven by improving outcomes and opportunities for children and young people. The resurgence of the “Black Lives Matter” movement prompted us to reflect on issues relating to the impact of systemic racism in the UK, experiences of EPs from Black and minority ethnic backgrounds, and the role of the EP in challenging the dominant narrative. This paper will discuss the current social climate, specifically anti-Black racism and how this may lead to experiences of racial trauma among Black people. We will also discuss institutional racism in systems including education and its link to the school to prison pipeline. Professional and personal reflections will be shared, as well as thoughts about working in a predominantly White profession. Throughout this piece, the authors will be keeping in mind the lived experience of children and reflecting on how the issues discussed, can relate to EP practice.
The effect of a finite mass reservoir on the collapse of spherical isothermal clouds and the evolution of protostellar accretion
Creators: name: Vorobyov, E. I.
name: Basu, Shantanu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by recent observations which detect an outer boundary for starless cores, and evidence for time-dependent mass accretion in the Class 0 and Class I protostellar phases, we reexamine the case of spherical isothermal collapse in the case of a finite mass reservoir. The presence of a core boundary results in the generation of an inward propagating rarefaction wave. This steepens the gas density profile from r^{-2} to r^{-3} or steeper. After a protostar forms, the mass accretion rate \dot{M} evolves through three distinct phases: (1) an early phase of decline in \dot{M}, which is a non-self-similar effect due to spatially nonuniform infall in the prestellar phase; (2) for large cores, an intermediate phase of near-constant \dot{M} from the infall of the outer part of the self-similar density profile; (3) a late phase of rapid decline in \dot{M} when accretion occurs from the region affected by the inward propagating rarefaction wave. Our model clouds of small to intermediate size make a direct transition from phase (1) to phase (3) above. Both the first and second phase are characterized by a temporally increasing bolometric luminosity L_bol, while L_bol is decreasing in the third (final) phase. We identify the period of temporally increasing L_bol with the Class 0 phase, and the later period of terminal accretion and decreasing L_bol with the Class I phase. The peak in L_bol corresponds to the evolutionary time when 50% \pm 10% of the cloud mass has been accreted by the protostar. This is in agreement with the classification scheme proposed by Andre et al. (1993). We show how our results can be used to explain tracks of envelope mass M_env versus L_bol for protostars in Taurus and Ophiuchus. We also develop an analytic formalism which reproduces the protostellar accretion rate.
description: 11 pages, 8 figures, accepted for publication in MNRAS
CONSUMERS' WILLINGNESS TO PAY FOR THE COLOR OF SALMON:A CHOICE EXPERIMENT WITH REAL ECONOMIC INCENTIVES
Creators: name: Alfnes, Frode
name: Guttormsen, Atle G.
name: Steine, Gro
name: Kolstad, Kari
name: Alfnes, Frode
name: Guttormsen, Atle G.
name: Steine, Gro
name: Kolstad, Kari
Publisher: name: Unknown
Year: 2005
Subjects: Consumer/Household Economics

description: We designed an experimental market with posted prices to investigate consumers' willingness to pay for the color of salmon. Salmon fillets varying in color and price were displayed in 20 choice scenarios. In each scenario, the participants chose which of two salmon fillets they wanted to buy. To induce real economic incentives, each participant drew one unique binding scenario; the participants then had to buy the salmon fillet they had chosen in their binding scenario.
Asteroids. From Observations to Models
Creators: name: Hestroffer, Daniel
name: Tanga, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We will discuss some specific applications to the rotation state and the shapes of moderately large asteroids, and techniques of observations putting some emphasis on the HST/FGS instrument.
description: to appear in LNP; 28pages; written in 2003; Winter School "Dynamique des Corps Celestes Non Ponctuels et des Anneaux", Lanslevillard (FRANCE)
Supplementary document for Spin-Multiplexed Metasurfaces Inverse-Designed Based on Bi-Directional Deep Neural Network for Terahertz Wavefront Control - 7411262.pdf
Creators: name: Wei, Haoran
name: He, Xiaoyong
name: Cao, Wenhan
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplementary information
Optimal and Approximation Algorithms for Joint Routing and Scheduling in Millimeter-Wave Cellular Networks
Creators: name: Yuan, Dingwen
name: Lin, Hsuan-Yin
name: Widmer, Jörg
name: Hollick, Matthias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Millimeter-wave (mmWave) communication is a promising technology to cope with the exponential increase in 5G data traffic. Such networks typically require a very dense deployment of base stations. A subset of those, so-called macro base stations, feature high-bandwidth connection to the core network, while relay base stations are connected wirelessly. To reduce cost and increase flexibility, wireless backhauling is needed to connect both macro to relay as well as relay to relay base stations. The characteristics of mmWave communication mandates new paradigms for routing and scheduling. The paper investigates scheduling algorithms under different interference models. To showcase the scheduling methods, we study the maximum throughput fair scheduling problem. Yet the proposed algorithms can be easily extended to other problems. For a full-duplex network under the no interference model, we propose an efficient polynomial-time scheduling method, the {\em schedule-oriented optimization}. Further, we prove that the problem is NP-hard if we assume pairwise link interference model or half-duplex radios. Fractional weighted coloring based approximation algorithms are proposed for these NP-hard cases. Moreover, the approximation algorithm parallel data stream scheduling is proposed for the case of half-duplex network under the no interference model. It has better approximation ratio than the fractional weighted coloring based algorithms and even attains the optimal solution for the special case of uniform orthogonal backhaul networks.
description: accepted for publish in the IEEE/ACM Transactions on Networking
Effects of landscape and local habitat features on bird communities : a study of an urban gradient in Greater Vancouver
Creators: name: Melles, Stephanie J.
Publisher: name: University of British Columbia
Year: 2009

description: Bird species diversity and abundance trends in urban areas can provide evidence to predict the relative importance of local bird habitat under different landscape contexts. I examined the hypothesis that selected species and nesting guilds should be more closely associated with landscape level features, such as proximity to large forested areas (< 100 ha), than with local scale habitat measures (< 1 ha). I collected avian community data during surveys completed over a two year period at 285 point count stations along four linear road transects located in Vancouver and Burnaby, British Columbia. Stations were located along transects bisecting three large parks (>324 ha) and proceeding away from these parks along residential streets into highly urban and suburban areas. A total of 49 breeding bird species were observed including 36 common species and 13 species that were sighted only once. Canonical correspondence analysis was used to view the main associations between measured habitat variables and species distributions. Species richness declined with increasing urbanization and the gradient (CCA axis one site scores) was dominated by landscape level habitat measures. Park area-by-distance metrics, developed using G.I.S., had the highest correlation with CCA axis one indicating the importance of park area in the vicinity for many species of birds breeding in marginal residential areas. Different land use zones did not neatly separate the urbanization gradient into simple bird habitat categories. Habitat models were created for five nesting guilds and three selected species (Song Sparrow, Melospiza melodia, Spotted Towhee, Pipilo maculatus, and American Robin, Turdus migratorius) with sequential block addition of landscape and local variables. Local variables significantly improved predictability of landscape variable only models, but the difference was slight. Landscape variables alone were often good predictors of presence or absence of most groups of species (guilds), but were less sensitive than local variables at predicting individual species presence. Incidence (percent stations occupied) of several bird species increased with park area in the vicinity as an inverse function of distance. The results of this study suggest that matrix areas surrounding parks and reserves should be integrated into urban planning and development designs.
IMPACT OF BRAND ADVERTISING ON FOOD CONSUMED AWAY FROM HOME
Creators: name: Bhuyan, Sanjib
name: Bhuyan, Sanjib
Publisher: name: Unknown
Year: 2005
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: foodservice
subject: advertising impact
subject: consumer behavior
subject: food away from home

description: As consumption of food away from home increases, competition for consumers' dollar is intensifying among the major restaurant brands. This study examines the impact of brand advertising on consumers' choice of food away from home. Study results are in concert with our common sense regarding consumer FAFH behavior.
Can narrow disks in the inner solar system explain the four terrestrial planets?
Creators: name: Lykawka, Patryk Sofia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A successful solar system model must reproduce the four terrestrial planets. Here, we focus on 1) the likelihood of forming Mercury and the four terrestrial planets in the same system (a 4-P system); 2) the orbital properties and masses of each terrestrial planet; and 3) the timing of Earth's last giant impact and the mass accreted by our planet thereafter. Addressing these constraints, we performed 450 N-body simulations of terrestrial planet formation based on narrow protoplanetary disks with mass confined to 0.7-1.0 au. We identified 164 analogue systems, but only 24 systems contained Mercury analogues, and eight systems were 4-P ones. We found that narrow disks containing a small number of embryos with individual masses comparable to that of Mars and the giant planets on their current orbits yielded the best prospects for satisfying those constraints. However, serious shortcomings remain. The formation of Mercury analogues and 4-P systems was too inefficient (5% and 2%, respectively), and most Venus-to-Earth analogue mass ratios were incorrect. Mercury and Venus analogues also formed too close to each other (~0.15-0.21 au) compared to reality (0.34 au). Similarly, the mutual distances between the Venus and Earth analogues were greater than those observed (0.34 vs. 0.28 au). Furthermore, the Venus-Earth pair was not reproduced in orbital-mass space statistically. Overall, our results suggest serious problems with using narrow disks to explain the inner solar system. In particular, the formation of Mercury remains an outstanding problem for terrestrial planet formation models.
description: 25 pages, 4 figures, 5 tables. Accepted for publication in Monthly Notices of the Royal Astronomical Society
Power and Racialisation: Exploring the Childhood and Educational Experiences of Four Mixed Young People (Who Identify as Having One Black and One White Parent)
Creators: name: Mclean, A.
name: Williams, A. R.
Publisher: name: School of Psychology, University of East London
Year: 2020

description: This Interpretative Phenomenological Analysis study aims to explore the experiences and understandings of childhood and education of four young people who identify as having a mixed Black and White heritage. The research utilises the theoretical positions of Critical Race Theory and recognises intersectionality. Participants took part in semi-structured interviews, and analysis led to the proposal of a series of “higher-order” superordinate themes across participants. These themes included “The significance of culture/heritage”, “Mixedness as challenging constructions”, “The significance of intersectionality”, “Blackness as problematic”, “Mixedness as an identity”, “Racialised perceptions in the development of self-identity” and “The power of Educational Experience”. Implications for practice are explored through Reflecting on Educational Psychology Practice and considering how educational psychology practice might develop through these accounts with reference to specific cultural and ethnic competencies in the British Psychological Society “Standards for the accreditation of Educational Psychology Training” (British Psychological Society, 2019).
Casimir energy and the superconducting phase transition
Creators: name: Bimonte, Giuseppe
name: Calloni, Enrico
name: Esposito, Giampiero
name: Rosa, Luigi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the influence of Casimir energy on the critical field of a superconducting film, and we show that by this means it might be possible to directly measure, for the first time, the variation of Casimir energy that accompanies the superconducting transition. It is shown that this novel approach may also help clarifying the long-standing controversy on the contribution of TE zero modes to the Casimir energy in real materials.
description: 12 pages, 5 figures. Talk given at 7th Workshop on Quantum Field Theory Under the Influence of External Conditions (QFEXT 05), Barcelona, Catalonia, Spain, 5-9 Sep 2005
In-silico drug repurposing and molecular dynamics puzzled out potential SARS-CoV-2 main protease inhibitors
Creators: name: Ibrahim, Mahmoud A. A.
name: Abdelrahman, Alaa H. M.
name: Mohamed-Elamir F. Hegazy
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Herein, the DrugBank database which contains 10,036 approved and investigational drugs was explored deeply for potential drugs that target SARS-CoV-2 main protease (Mpro). Filtration process of the database was conducted using three levels of accuracy for molecular docking calculations. The top 35 drugs with docking scores > −11.0 kcal/mol were then subjected to 10 ns molecular dynamics (MD) simulations followed by molecular mechanics–generalized Born surface area (MM-GBSA) binding energy calculations. The results showed that DB02388 and Cobicistat (DB09065) exhibited potential binding affinities towards Mpro over 100 ns MD simulations, with binding energy values of −49.67 and −46.60 kcal/mol, respectively. Binding energy and structural analyses demonstrated the higher stability of DB02388 over Cobicistat. The potency of DB02388 and Cobicistat is attributed to their abilities to form several hydrogen bonds with the essential amino acids inside the active site of Mpro. Compared to DB02388 and Cobicistat, Darunavir showed a much lower binding affinity of −34.83 kcal/mol. The present study highlights the potentiality of DB02388 and Cobicistat as anti-COVID-19 drugs for clinical trials. Communicated by Ramaswamy H. Sarma.
Meadows in the sky : contemporary applications for eco-roofs in the Vancouver region
Creators: name: Pedersen, Kimberly N.
Publisher: name: University of British Columbia
Year: 2009

description: In Vancouver, British Columbia, Canada, issues once thought isolated to large metropolitan areas such as Los Angeles, Tokyo, and Mexico City—increased storm water runoff, the urban heat island effect, deterioration of air and water quality, and loss of habitat and biodiversity—now threaten a region once described as "lotus-land" (Wynn and Oke, 1992, xi). European research supports the ability of green roofs to mitigate many of these ill effects of urbanization. The investigation undertaken by this thesis explores the role green roofs might play in the Greater Vancouver's transition to sustainable design and development. The thesis limits the scope of its investigation to inaccessible, extensive systems, alternately known as eco-roofs, which are relatively lightweight and low-maintenance. The paper reviews the historical and contemporary development of eco-roofs, including past and present motivations for their use and the evolution of construction methods. It then summarizes the potential impacts—aesthetic improvements, increased biodiversity, protection of the roof membrane, meso and microclimate mitigation, improved building insulation, and stormwater management—currently attributed to green roof implementation. The remainder of the thesis evaluates which of these potential impacts apply to Vancouver, in light of the city's physical contextual setting, and the ambient influences of the Greater Regional District The reported benefits of green roofs are numerous, and incremental contributions to improving environmental conditions should not be discounted or trivialized, however, in Vancouver and its region, eco-roofs' greatest impact, and consequently financial feasibility, resides in the mitigation of stormwater volumes. Eco-roofs' detain rainfall and slow runoff from the roof during and immediately following a storm event. This reduces peak flows, and corresponding CSO and flooding problems, and encourages a more natural hydrology by increasing the chances for stormwater infiltration. Storm runoff, and issues related to it, constitutes a persistent and growing problem in the GVRD. The ability of an eco-roofs even thin profile to mitigate this pressing issue could result in widespread, and even unforeseen, positive ramifications.