cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chemical treatment of backsawn Tasmanian Oak with Polyethylene Glycol (PEG) prior to drying
Creators: name: Ralph, J
Publisher: name: University Of Tasmania
Year: 2023

description: A series of experiments was conducted with the view of obtaining baseline information on the use of polyethylene glycol (PEG) on Tasmanian Oak for the purpose of improving the quality of the seasoned structural timber product. Tasmanian Oak is the marketing name for a triad of Tasmanian-grown eucalypt species (E. delegatensis, E. obliqua, and E.\regnans). Incubation of freshly-milled timber in aqueous PEG solutions prior to seasoning follows on from investigations in northern hemispheric timber species such as hoop pine and spruce in the middle of the 20th Century. PEG penetrates freshly sawn Tasmanian Oak in a manner which is considerate of incubation time, temperature, PEG molecular weight/size and timber density. Histological examination indicated that PEG penetrated completely throughout the structure of the wood substance in three orientations (transverse, radial and tangential). During air-drying of PEG soaked timber, further migration of PEG into Tasmanian Oak is negligible. The rate of moisture content loss in Tasmanian Oak was shown to be retarded by PEG pre-treatment although the ability to prevent moisture loss was not concomitant with dimensional stability. An investigation to explain the change in rate of moisture loss examined effects on the thermodynamic property, water activity. Results indicated that a change in solution water activity could partly expain changes in the rate of moisture content loss, but more research is required to better divine this relationship. Shrinkage in Tasmanian Oak was reduced after treatment with aqueous PEG 400 solutions at or above 30% (v/v), with a greater percentage reduction in tangential shrinkage compared to reduction in radial shrinkage. This is significant as backsawn (a.k.a. flatsawn) timber, with its broader tangential face, was in particular focus. The reduction in shrinkage was consistent with PEG concentration in the incubating medium.\ A decrease in the formation of drying defect, such as surface and internal checking accompanied the improvement in keeping sawn dimensions. Backsawn Tasmanian Oak obtained from young trees (less than 20 years) from plantation resource presents a challenging profile for commercial timber drying and will become more prevalent as the logging of old-growth forests is phased out. Timber seasoners may be faced with options of longer drying times or lower yields due to drying defect unless a method can be developed to provide added protection to the sawn timber product during drying. At this stage, pre-treatment of Tasmanian Oak with PEG shows the hallmarks of providing a solution to this emerging dilemma.
Correlating Raman Spectral Signatures with Carrier Mobility in Epitaxial Graphene: A Guide to Achieving High Mobility on the Wafer Scale
Creators: name: Robinson, Joshua A.
name: Wetherington, Maxwell
name: Tedesco, Joseph L.
name: Campbell, Paul M.
name: Weng, Xiaojun
name: Stitt, Joseph
name: Fanton, Mark A.
name: Frantz, Eric
name: Snyder, David
name: VanMil, Brenda L.
name: Jernigan, Glenn G.
name: Myers-Ward, Rachael L.
name: Eddy,, Charles R.
name: Gaskill, D. Kurt
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a direct correlation between carrier mobility and Raman topography of epitaxial graphene (EG) grown on silicon carbide (SiC). We show the Hall mobility of material on the Si-face of SiC [SiC(0001)] is not only highly dependent on thickness uniformity but also on monolayer strain uniformity. Only when both thickness and strain are uniform over a significant fraction (> 40%) of the device active area does the mobility exceed 1000 cm2/V-s. Additionally, we achieve high mobility epitaxial graphene (18,100 cm2/V-s at room temperature) on the C-face of SiC [SiC(000-1)] and show that carrier mobility depends strongly on the graphene layer stacking. These findings provide a means to rapidly estimate carrier mobility and provide a guide to achieve very high mobility in epitaxial graphene. Our results suggest that ultra-high mobilities (>50,000 cm2/V-s) are achievable via the controlled formation of uniform, rotationally faulted epitaxial graphene.
description: 13 pages including supplimental material. Submitted to Nature Materials 2/23/2009
A combined experimental and quantum chemical analysis of 3,3′-diaminodipropylamine–dihydrogenphosphate hybrid compound: [H3(C6H17N3)][(H2PO4)3]
Creators: name: Guelmami, Lelfia
name: Hajji, Melek
name: Guerfel, Taha
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: An organoammonium-dihydrogenphosphate compound, [H3(DADP)][(H2PO4)3], DADP = 3,3′-diaminodipropylamine was synthesized and characterized. The crystal structure consists of a supramolecular organic-inorganic framework mediated via strong charge-assisted N–H···O and O–H···O hydrogen bonding, and non-classical C–H···O H-bonds. The NCI and QTAIM approaches revealed the occurrence of the noteworthy C–H···Csp3 carbon-centered H-bonds, and the C–H···H–C dispersive contacts. Intermolecular interactions were further elucidated by Hirshfeld surfaces analysis. Moreover, dispersion-corrected Density Functional Theory (wB97X-D/aug-cc-pVTZ) provided insights into chemical reactivity properties. The compound was also analyzed using solid-state spectroscopies and thermal experiments. This contribution enhances the understanding of the structural diversity of organic-dihydrogenphosphate compounds.
Master integrals for four-loop massless form factors
Creators: name: Lee, Roman N.
name: von Manteuffel, Andreas
name: Schabinger, Robert M.
name: Smirnov, Alexander V.
name: Smirnov, Vladimir A.
name: Steinhauser, Matthias
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 530 Physik

description: We present analytical results for all master integrals for massless three-point functions, with one off-shell leg, at four loops. Our solutions were obtained using differential equations and direct integration techniques. We review the methods and provide additional details.
Ultra Relativistic Particle Collisions
Creators: name: Choptuik, Matthew W.
name: Pretorius, Frans
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present results from numerical solution of the Einstein field equations describing the head-on collision of two solitons boosted to ultra relativistic energies. We show, for the first time, that at sufficiently high energies the collision leads to black hole formation, consistent with hoop conjecture arguments. This implies that the non-linear gravitational interaction between the kinetic energy of the solitons causes gravitational collapse, and that arguments for black hole formation in super-Planck scale particle collisions are robust.
description: 4 pages, 2 figures (replaced with version similar to published one)
Ecotourism in Latin America
Creators: name: Schroer, Craig
Publisher: name: Benson Latin American Collection
Year: 1999
Subjects: Latin America
Political culture--Latin America
Ecotourism

description: In the past decade, the idea of ecotourism as a means of combining sustainable development with ecological protection has garnered a good deal of attention from several different quarters including environmentalists, indigenous peoples, business people and government agencies. This bibliography is intended as a guide to the holdings available at the Benson Collection and, in a few instances, elsewhere on campus. As new titles are added to the collection they will be accessible through the library catalog by doing a subject search on "ecotourism."
DEP Bulletin: Volume 45 Issue 18
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2021

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Drug Trafficking in the Americas: Selected Sources
Creators: name: Schroer, Craig
Publisher: name: Benson Latin American Collection
Year: 2000
Subjects: Drug traffic--Latin America
Narcotics
Social sciences--Latin America

description: The topic of illegal drugs and drug trafficking spans a multitude of disciplines, including economics, political science, media studies, sociology, psychology, and health. As a result, researchers are faced with an abundance of materials when embarking on a study. This bibliography of selected works provides a sampling of materials published since 1990. Unless otherwise indicated, all materials are located in the Benson Latin American Collection.
Nonequilibrium fluctuation theorems in the presence of a time-reversal symmetry-breaking field and nonconservative forces
Creators: name: Pradhan, Punyabrata
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study nonequilibrium fluctuation theorems in the presence of a time-reversal symmetry-breaking field and nonconservative forces, in a stochastic as well as a deterministic set up. We consider a system and a heat bath, called the combined system, and show that the fluctuation theorems are valid even when the heat bath goes out of equilibrium during driving. The only requirement for the validity is that, when the driving is switched off, the combined system relaxes to a state having a uniform probability measure on a constant energy surface, consistent with microcanonical ensemble of an isolated system.
description: 12 pages, 6 figures; minor revision, references added in section 1
Additional file 11 of CK2 alpha prime and alpha-synuclein pathogenic functional interaction mediates synaptic dysregulation in Huntington’s disease
Creators: name: Yu, Dahyun
name: Zarate, Nicole
name: White, Angel
name: Coates, De’jah
name: Tsai, Wei
name: Nanclares, Carmen
name: Cuccu, Francesco
name: Yue, Johnny S.
name: Brown, Taylor G.
name: Mansky, Rachel H.
name: Jiang, Kevin
name: Kim, Hyuck
name: Nichols-Meade, Tessa
name: Larson, Sarah N.
name: Gundry, Katherine
name: Zhang, Ying
name: Tomas-Zapico, Cristina
name: Lucas, Jose J.
name: Benneyworth, Michael
name: Öz, Gülin
name: Cvetanovic, Marija
name: Araque, Alfonso
name: Gomez-Pastor, Rocio
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 11. Expression analyses for astrocyte markers of A1, A2 and pan-reactive (from Liddelow et al., 2017 (40)) in WT, zQ175, CK2α’(+/-) and zQ175:CK2α’(+/-).
Supplementary document for Adaptive Methods of Generating Complex Light Arrays - 6753482.pdf
Creators: name: WANG, TIANHONG
name: Tran, Viet
name: Bassene, Pascal
name: Fohtung, Edwin
name: Rhone, Trevor
name: N'Gom, Moussa
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Classical and Physical Optics

description: Supplemental document.
United States Department of State Microfilm at the Benson Collection
Creators: name: Schroer, Craig
Publisher: name: Benson Latin American Collection
Year: 2003
Subjects: Latin America
South America
United States. Department of State--Records and correspondence

description: This Biblionoticias is a compilation of all microfilm copies of United States Department of State records currently held by the Benson Latin American Collection. It is arranged alphabetically by country and, where the materials support it, further organization is alphabetically by city and/or by dates covered. A "Miscellaneous" section at the end of this guide lists those items that fall outside of this categorization scheme. All microfilms are located on floor 3N in the Benson Collection stacks. A union list of combined holdings of major sets of microforms (other than newspapers) documenting public and international affairs in the countries of Latin America and the Caribbean is also available online.
Strong no-go theorem for Gaussian quantum bit commitment
Creators: name: Magnin, Loïck
name: Magniez, Frédéric
name: Leverrier, Anthony
name: Cerf, Nicolas J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Unconditionally secure bit commitment is forbidden by quantum mechanics. We extend this no-go theorem to continuous-variable protocols where both players are restricted to use Gaussian states and operations, which is a reasonable assumption in current-state optical implementations. Our Gaussian no-go theorem also provides a natural counter-example to a conjecture that quantum mechanics can be rederived from the assumption that key distribution is allowed while bit commitment is forbidden in Nature.
description: 4 pages. v2: We discuss the implications of this theorem on the Brassard-Fuchs conjecture and the CBH theorem
Analysis of participants in rural adult education
Creators: name: Goard, Dean Sinclair
Publisher: name: University of British Columbia
Year: 2011

description: Most research on participation in adult education has described participants using static variables, however, it has been suggested that dynamic factors which describe the relationship between the individual and the organization have more potential value. This study included both types of variables when analyzing the factors which influence participation in adult education in a rural Canadian setting. The data for this study were collected during the summer months of 1967, when interviews were completed with 881 household heads in six rural regions of British Columbia. The 126 respondents who were classified as participants and an equal number of randomly drawn non-participants were compared using both static and dynamic variables. The distributions within the groups were tested for significant differences using the chi square statistic while linear relationships were indicated by correlation coefficients. To remove the effects of the variables of age and education from the relationships existing between the two groups a second sample of non-participants was matched with the participants on these variables. The new groups were then compared using the static and dynamic variables on which the original groups had differed significantly. The first and second hypotheses which proposed significant differences between the two groups with respect to certain static and dynamic variables, were tentatively accepted when the original samples of participants and non-participants were shown to differ significantly on thirteen static and eight dynamic variables. The third hypothesis which proposed differences between vocational and non-vocational participants was only partially accepted as the two groups differed on the variables of occupational prestige and income. The findings with respect to the first two hypotheses were modified when the matched groups were shown to differ significantly on only five static and two dynamic variables. On these variables the participants reported better job training and better jobs, fewer but better educated children, and greater formal social participation. They also reported a greater felt need for further education and stated more willingness to give up spare time for this education. A general conclusion was proposed which suggested that the participants exhibited a more favourable attitude to education than did the non-participants. But this conclusion is tentative as the findings of the study emphasize both the need for further research with dynamic variables and the control of age and education variables when comparing participants and non-participants.
Migration in Latin America: Selected Recent Sources
Creators: name: Delepiani, Oscar E.
Publisher: name: Benson Latin American Collection
Year: 1998
Subjects: Latin American literature
Social sciences--Latin America
Rural-urban migration--Latin America

description: Migration in Latin America in all of its manifestations--internal migration, emigration to other countries, and immigration--has been a topic of continuing interest and the subject of works of history, demography, social science, and literature, among others. This bibliography provides a selective list of recent publications on migration and related topics available in the Benson Collection. It excludes works that focus on the following topics: immigration from Latin America to the United States; historical works about immigrants or immigration from countries outside of Latin America or of ethnic groups to the Americas; and works dealing primarily with rural-urban migration, refugees, repatriation, return migration, forced migration, diaspora, personal accounts, or works about immigration to or from very specific localities within countries. To locate additional materials in UTCAT, the online catalog, do a subject search with the name of the region or country plus the phrase, emigration and immigration (Ex.: s argentina emigration and immigration). You may also do a subject keyword search using the words immigration, emigration, or migration (Ex.: sk migration venezuela; sk southern cone immigration).
Quasi-one- and quasi-two-dimensional perfect Bose gas: the second critical density and generalised condensation
Creators: name: Beau, Mathieu
name: Zagrebnov, Valentin A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this letter we discuss a relevance of the 3D Perfect Bose gas (PBG) condensation in extremely elongated vessels for the study of anisotropic condensate coherence and the "quasi-condensate". To this end we analyze the case of exponentially anisotropic (van den Berg) boxes, when there are two critical densities $ρ_c < ρ_m$ for a generalised Bose-Einstein Condensation (BEC). Here $ρ_c$ is the standard critical density for the PBG. We consider three examples of anisotropic geometry: slabs, squared beams and "cigars" to demonstrate that the "quasi-condensate" which exists in domain $ρ_c < ρ< ρ_m$ is in fact the van den Berg-Lewis-Pulé generalised condensation (vdBLP-GC) of the type III with no macroscopic occupation of any mode. We show that for the slab geometry the second critical density $ρ_m$ is a threshold between quasi- two-dimensional (quasi-2D) condensate and the three dimensional (3D) regime when there is a coexistence of the "quasi-condensate" with the standard one-mode BEC. On the other hand, in the case of squared beams and "cigars" geometries critical density $ρ_m$ separates quasi-1D and 3D regimes. We calculate the value of difference between $ρ_c, ρ_m$ (and between corresponding critical temperatures $T_m, T_c$) to show that observed space anisotropy of the condensate coherence can be described by a critical exponent $γ(T)$ related to the anisotropic ODLRO. We compare our calculations with physical results for extremely elongated traps that manifest "quasi-condensate".
description: 6 p
The regularizing effects of resetting in a particle system for the Burgers equation
Creators: name: Iyer, Gautam
name: Novikov, Alexei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the dissipation mechanism of a stochastic particle system for the Burgers equation. The velocity field of the viscous Burgers and Navier-Stokes equations can be expressed as an expected value of a stochastic process based on noisy particle trajectories [Constantin and Iyer Comm. Pure Appl. Math. 3 (2008) 330-345]. In this paper we study a particle system for the viscous Burgers equations using a Monte-Carlo version of the above; we consider N copies of the above stochastic flow, each driven by independent Wiener processes, and replace the expected value with $\frac{1}{N}$ times the sum over these copies. A similar construction for the Navier-Stokes equations was studied by Mattingly and the first author of this paper [Iyer and Mattingly Nonlinearity 21 (2008) 2537-2553]. Surprisingly, for any finite N, the particle system for the Burgers equations shocks almost surely in finite time. In contrast to the full expected value, the empirical mean $\frac{1}{N}\sum_1^N$ does not regularize the system enough to ensure a time global solution. To avoid these shocks, we consider a resetting procedure, which at first sight should have no regularizing effect at all. However, we prove that this procedure prevents the formation of shocks for any $N\geq2$, and consequently as $N\to\infty$ we get convergence to the solution of the viscous Burgers equation on long time intervals.
description: Published in at http://dx.doi.org/10.1214/10-AOP586 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A proof of Price's Law on Schwarzschild black hole manifolds for all angular momenta
Creators: name: Donninger, Roland
name: Schlag, Wilhelm
name: Soffer, Avy
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35L05, 34L25, 83C57

description: Price's Law states that linear perturbations of a Schwarzschild black hole fall off as $t^{-2\ell-3}$ for $t \to \infty$ provided the initial data decay sufficiently fast at spatial infinity. Moreover, if the perturbations are initially static (i.e., their time derivative is zero), then the decay is predicted to be $t^{-2\ell-4}$. We give a proof of $t^{-2\ell-2}$ decay for general data in the form of weighted $L^1$ to $L^\infty$ bounds for solutions of the Regge--Wheeler equation. For initially static perturbations we obtain $t^{-2\ell-3}$. The proof is based on an integral representation of the solution which follows from self--adjoint spectral theory. We apply two different perturbative arguments in order to construct the corresponding spectral measure and the decay bounds are obtained by appropriate oscillatory integral estimates.
description: 43 pages, statement of Price's Law clarified and some minor corrections, to appear in Adv. Math
Squeezing the Collective Spin of a Dilute Atomic Ensemble by Cavity Feedback
Creators: name: Schleier-Smith, Monika H.
name: Leroux, Ian D.
name: Vuletić, Vladan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and analyze a simple method to squeeze dynamically and unconditionally the collective spin of a dilute atomic ensemble by interaction with a driven mode of an optical resonator, as recently demonstrated [I. D. L., M. H. S., and V. V., Phys. Rev. Lett. 104, 073602 (2010)]. We show that substantial squeezing can be achieved in the regime of strong collective ensemble-resonator coupling. The squeezing is ultimately limited either by photon emission into free space or by the curvature of the Bloch sphere. We derive both limits and show where each prevails.
description: 4 pages, 2 figures. Minor revision. To appear in Phys. Rev. A
ERRORS AND COMPLICATIONS WHEN TREATING PULPITIS
Creators: name: Ilkhomjonova, Sevara
name: Abdullaeva, Parizoda
name: Akhmedov, Dilshod
name: Zoirov, Tulkin
Publisher: name: Zenodo
Year: 2025

description: Inflammation of the dental pulp is a common disease encountered in the practice of a dentist. According to various authors, in the structure of dental care in terms of visits, patients with pulpitis range from 14 to 30%. This article discusses errors and complications in the treatment of pulpitis.
The development of the French violin sonata (1860-1910)
Creators: name: Guen, Le
Publisher: name: University Of Tasmania
Year: 2023

description: This doctoral research was conducted primarily to develop my expertise in performance and interpretation through the contextual study and performance of the violin sonatas written by French composers between 1860 and 1910. The outcomes of this research are a series of recorded recitals and an accompanying exegesis that examines the stylistic characteristics of the violin sonatas written in France during that period. The primary research culminated in the performances of sonatas by Faure, Saint-Sa‚àö¬¥ns and Franck, that are considered to be the cornerstone of the French violin repertoire, as well as lesser known works by Guillaume Lekeu, Maurice Ravel, ‚àöv¢douard Lalo and Paul Le Flem that are rarely played in Australia. The exegesis examines the effect that the political and cultural scene of the late nineteenth and early twentieth century had on the revival of the violin sonata in France and whether the Societe Nationale de Musique was the sole driving force behind this revival. Reasons for the paucity of French violin compositions during the first three quarters of the nineteenth century are proposed. Stylistic characteristics of the violin sonatas written prior to 1860 are briefly analysed and a more detailed stylistic analysis of twenty-one French violin sonatas written between 1860 and 1910 forms a major part of the exegesis. It was determined that the Societe Nationale, during its first twenty years of existence, was without a doubt the only organisation that aided French composers of the late nineteenth century in the development of the violin sonata as a genre. It was only after 1890, with the revival of the violin sonata fueled by the popularity of the sonatas written by Faure, Saint-Sa‚àö¬¥ns and Franck, that composers not affiliated with the Societe Nationale began to write violin sonatas. That resulted in the composition of over 70 violin sonatas written by French composers between 1860 and 1910.
Television picture transmission and optical signal processing
Creators: name: Meier, Otto
Publisher: name: University of British Columbia
Year: 2011

description: Optical signal processing is introduced as a tool for investigations in the field of television compression research. An optical signal processing system is designed, which performs the Fourier transform of a picture signal F[B(x,y)] and its reconstruction F⁻¹ {F [B(x,y)]} . Some basic optical filtering experiments are performed in the spatial frequency plane, and the optical analogue of the frequency sampling theorem is demonstrated. The Fourier transforms of test pattern pictures show large gaps which can be used for compression. Observation of complex spectra of continuous tone pictures is found to be impaired by noise effects. A physiological experiment is carried out, which investigates the relationship between tolerable flicker frequency and spatial frequency of a television picture. It is found that the tolerable flicker rate f decreases as the spatial frequency fx is increased, according to the empirical equation fc = fo exp(-kfx). fo and k are parameters depending on factors like contrast ratio, kind and size of picture, etc. Compression systems using the above results are found to have a limit of obtainable compression ratio of approximately 3 to 1.
The Role of Technology during the COVID-19 Pandemic: The Case of EFL Online Teaching Placements
Creators: name: Morrison, Astrid
name: Sepulveda-Escobar, Paulina
Publisher: name: figshare
Year: 2021
Subjects: subject: Education
subject: 130313 Teacher Education and Professional Development of Educators
subject: FOS: Educational sciences
subject: 130103 Higher Education

description: The Coronavirus 2019 pandemic has undeniably changed the educational scenario around the world. With schools and universities closing until further notice, initial teacher education had to be moved from a traditional setting to an entire online environment, making technology the fundamental support for its development. Considering that the current health emergency uncovered the scarcity of practice and empirical research about online teaching placement, this study aims to examine the use of technology as the pivotal tool that allowed EFL student teachers to continue learning to teach during the COVID-19 pandemic. Fourteen Chilean EFL student teachers undertaking their teaching experience remotely participated in this interpretative case-study. Data was collected through a semi-structured interview at two different points of their online teaching experience, and it was analysed using thematic analysis as a framework. The results show that adaptations to technological teaching strategies affected prospective teachers’ development of teaching skills. Nevertheless, this online placement prompted the interest and motivation to search and discover new technological tools to enhance school learners’ learning process, especially in a context where access to technology cannot be afforded by everyone. Student teachers also acknowledged that this once-in-a-lifetime experience would potentially contribute to their technology literacy and their future teacher development. As this health emergency has affected the education sector worldwide, implications for teacher education providers that have faced this transition in multiple contexts are discussed.
Surface Contact Potential Patches and Casimir Force Measurements
Creators: name: Kim, Woo-Joong
name: Sushkov, A. O.
name: Dalvit, Diego A. R.
name: Lamoreaux, S. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present calculations of contact potential surface patch effects that simplify previous treatments. It is shown that, because of the linearity of Laplace's equation, the presence of patch potentials does not affect an electrostatic calibration (of force and/or distance) of a two-plate Casimir measurement apparatus. Using models that include long-range variations in the contact potential across the plate surfaces, a number of experimental observations can be reproduced and explained. For these models, numerical calculations show that if a voltage is applied between the plates which minimizes the force, a residual electrostatic force persists, and that the minimizing potential varies with distance. The residual force can be described by a fit to a simple two-parameter function involving the minimizing potential and its variation with distance. We show the origin of this residual force by use of a simple parallel capacitor model. Finally, the implications of a residual force that varies in a manner different from 1/d on the accuracy of previous Casimir measurements is discussed.
description: Final version, accepted by Phys. Rev. A
Thomas Lovell Beddoes and the Germanic setting
Creators: name: Harrex, AC
Publisher: name: University Of Tasmania
Year: 2023

description: The present thesis is a study of hitherto neglected aspects cf the work of the English poet and dramatist Thomas Lovell Beddoes (1803-1849). His major work, Death's Jest Book, was written in Germany; the adult years of his life were spent in this country and in Switzerland, and the literature and thought of the German writers of the late eighteenth and early nineteenth centuries influenced the treatment and the plot of Death's Jest Book. Beddoes received little or no recognition in his lifetime and not all the facts about his years on the Continent have yet been discovered. The Introduction therefore is devoted to establishing the sources for biographical and textual matters. Part One is biographical: a discussion of the life of the poet, his early works, and of the origin of the problems which led him to begin the writing of Death's Jest Book, a play whose development through twenty years of writing and revision is inseparable from that of its author. His later political career and suicide are treated in less detail. Part Two is devoted to a new interpretation of Death's Jest Book in terms of four main themes. The first two sections, A and B, discuss the source of the plot, its connections with the English revenge drama, and the later revisions of the play which are an index of the changes in the poet's view of life. Section C concerns the themes of folly, revenge and power and liberty, whose development is inextricable from the plot, and the theme of death, associated with the motif of the Dance of Death, is treated separately from page 86 onwards. Part Three attempts to evaluate the nature and extent of the German influence in the play in the four categories named in the Contents. The first discusses the general concept of irony, demonstrates Beddoes' use of Dramatic Irony, and defines the German concept of Romantic Irony, derived by Beddoes from three sources and adapted to the demands of his play. The summary of this section endeavours to answer some of the questions posed by Part Two C's discussion of the play, mainly that of its unity or lack of it. Three B discusses the influence of Novalis's theory of Magic Idealism on two passages of the play and associated matters; Three C is concerned with specific sections of the play which may or may not have been influenced by the works of German writers, mainly Goethe, Schiller and Tieck, and endeavours to establish the general nature of this influence; Three D concerns the version of Act 1 of the play and its relation to the German chronicle form, concluding with a word on linguistic influence to be detected in the language of the play. The Conclusion attempts to sum up the findings of the preceding two sections and relates Beddoes' work to the more general problems of the Romantic movement as a perspective of judgment.
Properties of sums of some elementary functions and modeling of transitional and other processes
Creators: name: Shestopaloff, Yuri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 00A05, 26A06

description: The article presents mathematical generalization of results which originated as solutions of practical problems, in particular, the modeling of transitional processes in electrical circuits and problems of resource allocation. However, the presented findings have broader meaning and can be used for approximation of transitional and other processes in different areas of science and technology. We present discovered properties of sums of polynomial, power, and exponential functions of one variable. It is shown that for an equation composed of one type of function there is a corresponding equation composed of functions of the other type. The number of real solutions of such equations and the number of characteristic points of certain appropriate corresponding functions are closely related. In particular, we introduce a method similar to Descartes Rule of Signs that allows finding the maximum number of real solutions for the power equation and equation composed of sums of exponential functions. The discovered properties of these functions allow us to improve the adequacy of mathematical models of real phenomena.
description: 17 pages with 2 figures included
Joins of DGA modules and sectional category
Creators: name: Suarez, Lucia Fernandez
name: Ghienne, Pierre
name: Kahl, Thomas
name: Vandembroucq, Lucile
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55M30, 55P62

description: We construct an explicit semifree model for the fiber join of two fibrations p: E --> B and p': E' --> B from semifree models of p and p'. Using this model, we introduce a lower bound of the sectional category of a fibration p which can be calculated from any Sullivan model of p and which is closer to the sectional category of p than the classical cohomological lower bound given by the nilpotency of the kernel of p^*: H^*(B;Q) --> H^*(E;Q). In the special case of the evaluation fibration X^I --> X x X we obtain a computable lower bound of Farber's topological complexity TC(X). We show that the difference between this lower bound and the classical cohomological lower bound can be arbitrarily large.
description: This is the version published by Algebraic & Geometric Topology on 24 February 2006
Quando a Língua de Herança é a Língua de Divulgação de Conhecimento – o caso dos programas educativos de trocas de cartas "Dia Mundial com Ciência"
Creators: name: Alves, Mariana RP
name: Ana Rodrigues
name: Beatriz Matos
name: Jacinto Mathe
name: Sandra M Chaves
name: Joana Moscoso
name: Rafael Galupa
Publisher: name: Zenodo
Year: 2023
Subjects: Língua Portuguesa
Comunicação e Divulgação de Ciência
Ensino não formal
Língua Herança

description: VER VERSÃO ATUALIZADA EM https://zenodo.org/records/10342284
Poster apresentado em VI Simpósio Europeu de Português como Língua de Herança (VI SEPOLH), subordinado ao tema "Português como Língua de Herança: da Gestão à Formação" - 23 – 25 outubro, 2023, Universidade de Aveiro, Portugal
description: Mariana Alves financiada por Fundos Nacionais através da FCT – Fundação para a Ciência e a Tecnologia, I.P., projeto UIDB/00194/2020 (CIDTFF) e BIPD/UI57/10732/2023. Programas realizados com rede EPE em colaboração com a Native Scientists e financiados pelo Instituto Camões.
Coleman Maps for Modular Forms at Supersingular Primes over Lubin-Tate Extensions
Creators: name: Lei, Antonio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R23, 11F11

description: Given an elliptic curve with supersingular reduction at an odd prime p, Iovita and Pollack have generalised results of Kobayashi to define even and odd Coleman maps at p over Lubin-Tate extensions given by a formal group of height 1. We generalise this construction to modular forms of higher weights.
description: Some really minor changes from the previous version, almost identical to the published version
Quando a Língua de Herança é a Língua de Divulgação de Conhecimento – o caso dos programas educativos de trocas de cartas "Dia Mundial com Ciência"
Creators: name: Mariana RP Alves
name: Ana Rodrigues
name: Beatriz Matos
name: Jacinto Mathe
name: Sandra M Chaves
name: Joana Moscoso
name: Rafael Galupa
Publisher: name: Zenodo
Year: 2023
Subjects: Língua Portuguesa
Comunicação e Divulgação de Ciência
Ensino não formal
Língua Herança

description: VER VERSÃO ATUALIZADA EM https://zenodo.org/records/10342284 Poster apresentado em VI Simpósio Europeu de Português como Língua de Herança (VI SEPOLH), subordinado ao tema "Português como Língua de Herança: da Gestão à Formação" - 23 – 25 outubro, 2023, Universidade de Aveiro, Portugal
description: Mariana Alves financiada por Fundos Nacionais através da FCT – Fundação para a Ciência e a Tecnologia, I.P., projeto UIDB/00194/2020 (CIDTFF) e BIPD/UI57/10732/2023. Programas realizados com rede EPE em colaboração com a Native Scientists e financiados pelo Instituto Camões.
Temperature dependence of the nitrogen-vacancy magnetic resonance in diamond
Creators: name: Acosta, V. M.
name: Bauch, E.
name: Ledbetter, M. P.
name: Waxman, A.
name: Bouchard, L. S.
name: Budker, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The temperature dependence of the magnetic resonance spectra of nitrogen-vacancy (NV-) ensembles in the range of 280-330 K was studied. Four samples prepared under different conditions were studied with NV- concentrations ranging from 10 ppb to 15 ppm. For all of these samples, the axial zero-field splitting (ZFS) parameter, D, was found to vary significantly with temperature, T, as dD/dT = -74.2(7) kHz/K. The transverse ZFS parameter, E, was non-zero (between 4 and 11 MHz) in all samples, and exhibited a temperature dependence of dE/(EdT) = -1.4(3) x 10^(-4) K^(-1). The results might be accounted for by considering local thermal expansion. The observation of the temperature dependence of the ZFS parameters presents a significant challenge for room-temperature diamond magnetometers and may ultimately limit their bandwidth and sensitivity.
description: 5 pages, 2 figures, 1 table
Irin ajo mi si Nigeria | My journey to Nigeria
Creators: name: Alves, Mariana RP
Publisher: name: Zenodo
Year: 2020
Subjects: education
international cooperation

description: Commentary article for the Education section of The Node blog -  the community site for and by developmental and stem cell biologists, about an international visit of PhD student Mariana RP Alves to Nigeria, as published at https://thenode.biologists.com/irin-ajo-mi-si-nigeria-my-journey-to-nigeria/outreach/
Making nonlocal reality compatible with relativity
Creators: name: Nikolic, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is often argued that hypothetic nonlocal reality responsible for nonlocal quantum correlations between entangled particles cannot be consistent with relativity. I review the most frequent arguments of that sort, explain how they can all be circumvented, and present an explicit Bohmian model of nonlocal reality (compatible with quantum phenomena) that fully obeys the principle of relativistic covariance and does not involve a preferred Lorentz frame.
description: 10 pages, revised, invited talk presented at conference Quantum 2010: Advances in Foundations of Quantum Mechanics and Quantum Information with Atoms and Photons, Turin, Italy, May 24-28, 2010
DEP Bulletin: Volume 45 Issue 19
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2021

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Extrinsic noise passing through a Michaelis-Menten reaction: A universal response of a genetic switch
Creators: name: Ochab-Marcinek, Anna
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: The study of biochemical pathways usually focuses on a small section of a protein interactions network. Two distinct sources contribute to the noise in such a system: intrinsic noise, inherent in the studied reactions, and extrinsic noise generated in other parts of the network or in the environment. We study the effect of extrinsic noise entering the system through a nonlinear uptake reaction which acts as a nonlinear filter. Varying input noise intensity varies the mean of the noise after the passage through the filter, which changes the stability properties of the system. The steady-state displacement due to small noise is independent on the kinetics of the system but it only depends on the nonlinearity of the input function. For monotonically increasing and concave input functions such as the Michaelis-Menten uptake rate, we give a simple argument based on the small-noise expansion, which enables qualitative predictions of the steady-state displacement only by inspection of experimental data: when weak and rapid noise enters the system through a Michaelis-Menten reaction, then the graph of the system's steady states vs. the mean of the input signal always shifts to the right as noise intensity increases. We test the predictions on two models of lac operon, where TMG/lactose uptake is driven by a Michaelis-Menten enzymatic process. We show that as a consequence of the steady state displacement due to fluctuations in extracellular TMG/lactose concentration the lac switch responds in an asymmetric manner: as noise intensity increases, switching off lactose metabolism becomes easier and switching it on becomes more difficult.
description: 25 pages, 9 figures, changed content, added figures, accepted for publication in Journal of Theoretical Biology
Physics and application of photon number resolving detectors based on superconducting parallel nanowires
Creators: name: Marsili, F
name: Bitauld, D
name: Gaggero, A
name: Jahanmirinejad, S
name: Leoni, R
name: Mattioli, F
name: Fiore, A
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Parallel Nanowire Detector (PND) is a photon number resolving (PNR) detector which uses spatial multiplexing on a subwavelength scale to provide a single electrical output proportional to the photon number. The basic structure of the PND is the parallel connection of several NbN superconducting nanowires (100 nm-wide, few nm-thick), folded in a meander pattern. PNDs were fabricated on 3-4 nm thick NbN films grown on MgO (TS=400C) substrates by reactive magnetron sputtering in an Ar/N2 gas mixture. The device performance was characterized in terms of speed and sensitivity. PNDs showed a counting rate of 80 MHz and a pulse duration as low as 660ps full width at half maximum (FWHM). Building the histograms of the photoresponse peak, no multiplication noise buildup is observable. Electrical and optical equivalent models of the device were developed in order to study its working principle, define design guidelines, and develop an algorithm to estimate the photon number statistics of an unknown light. In particular, the modeling provides novel insight of the physical limit to the detection efficiency and to the reset time of these detectors. The PND significantly outperforms existing PNR detectors in terms of simplicity, sensitivity, speed, and multiplication noise.
It's not limited to Archaea – on methane emissions in the world of fungi
Creators: name: Grzyb, Tomasz
Publisher: name: Zenodo
Year: 2023
Subjects: methane emissions
methane paradox
climate change
fungi
carbon cycle

description: Methane (CH4) is a potent greenhouse gas, second only to carbon dioxide in driving climate change during the industrial era. CH4 warming potential is 28 times more powerful than CO2 in a 100-year timescale. Moreover, methane contributes to the formation of ground-level ozone, a dangerous air pollutant. The atmospheric amount of methane has more than doubled since pre-industrial times. To control and minimise the threat connected to methane emissions, we need to understand global CH4 sources and the processes behind them. Biogenic methane sources typically refer to archaeal methanogenesis, an anaerobic process playing a quantitatively important role in global methane emissions. However, the methane paradox is observed – although methanogenesis is expected to happen only under strictly anoxic conditions, peaks in CH4 concentrations in oxygen-saturated waters are present. Increasing evidence has confirmed that cyanobacteria, algae, and fungi could produce methane in oxic environments. Fungi not only enhance archaeal methanogenesis by initiating the degradation of organic matter, but they can also produce methane themselves. It has been shown that methane could be produced continuously under oxic conditions without any archaeal presence, i.e., by Pleurotus sapidus and Laetiporus sulphureus. It is possible to happen when various metabolites (such as methionine) are degraded, possibly as a stress response. The biochemical and physiological aspects of these processes, as well as the fungal role in the global methane cycle, remain mostly unclear. However, non-methanogenesis processes could be important contributors to global methane emissions. Here, we present current state-of-the-art concerning methane emissions in the world of fungi.