cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
All-fibre wavelength versatile short pulsed laser sources
Creators: name: Schmidt Castellani, Carlos Eduardo
Publisher: name: Imperial College London
Year: 2013

description: Pulsed lasers operating in the picosecond or femtosecond regimes find a wide range of applications in optical sciences, such as spectroscopy, laser surgery, material processing and optical communications. Among the existing sources of short-pulses, mode-locked fibre lasers play an important role mainly due to their robust and compact nature, and also due to their ability to generate outputs over a wide range of repetition-rates, pulse durations, pulse shapes, peak powers and optical wavelengths. Considering the case of wavelength versatility, Raman amplification can be used to fill the spectral gaps that are not covered by the emission band of traditional rare-earth doped elements such as ytterbium and erbium, allowing the generation of light at unconventional wavelengths. Additionally, another contribution has come from the recent development of new nanomaterials such as graphene and carbon nanotubes that can be used as saturable absorbers over a broadband wavelength range. The experimental work reported in this thesis is mainly focused in combining the wavelength versatility allowed by Raman gain and carbon nanotubes and graphene to generate short-pulsed fibre lasers at different wavelengths. High power ytterbium and erbium lasers and also a high power Raman laser operating at 1450 nm are used as pump sources to seed the Raman gain and carbon nanotubes and graphene are the saturable absorbers used as mode-lockers. All the fibres utilized in the oscillators are highly non-linear single mode silica fibres doped with GeO2. The lasers operate in the dissipative soliton regime, generating chirped pulses with durations on the order of hundred of picosecond that are suitable for external compression. We demonstrate for example an erbium-pumped Raman oscillator generating 500 ps pulses that are linearly compressed to 2 ps. The results presented in this document are a contribution towards making fibre based lasers more universal devices in terms of wavelength operation.
Geochemical Modelling of CO2 in Saline Aquifers
Creators: name: Mohd Amin, Sharidah
Publisher: name: Imperial College London
Year: 2013

description: Carbon dioxide, CO2, disposal into saline aquifers could reduce emissions of anthropogenic greenhouse gases into the atmosphere. To ensure that the CO2 is trapped securely and will not escape to the surface, storage in such formations must be designed carefully. The geochemical reactions involved depend on the composition of the injected fluid introduced in the aquifer and the composition of the initial minerals assemblage and the aquifer brine. This thesis studies mineral dissolution/precipitation during CO2 storage, both in the cap rock and the storage aquifer itself. The overall objective is to propose an ideal storage design for long term, inexpensive and safe CO2 disposal in saline aquifers. The rate-limiting effects of CH4 impurities in gas streams on the CO2 reactivity in the cap rock and aquifer (carbonate and sandstone) at conditions representative of storage locations are studied. Representative geochemical data of formation water and mineralogy assemblages of cap rock (Nordland shale) overlying the Sleipner field, Dogger carbonate aquifer from Paris basin, France and Frio sandstone aquifer from Texas, US, are used. Kinetic batch and one-dimensional and two-dimensional reactive transport models are run to predict mineral alteration induced in the cap rock and in the aquifer. Cap rock models are run using PHREEQC for 10,000 years. The model considers both pure CO2 and mixtures of CO2 with CH4 (1-4 (w/w)%) in the injected gas stream. The simulations demonstrate that mixtures of CO2 with CH4 suppress the porosity increase in the cap rock, leading to more secure storage. The aquifers models incorporate 1 (w/w)% organic matter and are run using TOUGHREACT. CO2 was initially injected at constant rate of 30kg/s for 25 years and the models were subsequently run for 10,000 years to study long-term storage. The simulations demonstrate that injection of CO2 in microbial-mediated aquifers enhances the precipitation of secondary carbonates minerals and decreases the porosity of both sandstone and carbonate aquifers. Overall, this study proposes two main design criteria for safe and cost-effective CO2 storage: CO2 injection with CH4 (1-4 (w/w)%) and CO2 injection into microbial-mediated aquifers to enhance mineral precipitation, rendering storage secure.
Evidence for pitcher trait-mediated coexistence between sympatric Nepenthes pitcher plant species across geographical scales
Creators: name: Weng Ngai Lam
name: Lai, Hao Ran
name: Lee, Chien C.
name: Tan, Hugh T. W.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Plant Biology

description: Background: According to modern coexistence theory, ecologically similar species can coexist if fitness differences between them are small, or niche differences between them are large. However, these predictions have not been tested extensively in real systems and are difficult to examine in traits-based studies. Aims: The aim of our study was, by using the carnivorous pitcher plant genus Nepenthes as a model system, to examine (1) species growth ranks as a proxy for fitness; (2) modern coexistence theory at a geographical scale; (3) evidence for pitcher trait-mediated resource partitioning between sympatric Nepenthes species. Methods: We used growth ranks, obtained from a survey of experienced Nepenthes nursery owners, as a proxy for fitness. Multivariate pitcher-, vegetative- or combined-trait distances, computed from morphometric-trait data from the literature were used as proxies for niche differences. Data on global Nepenthes species-pair sympatry was modelled against these fitness and niche differences. Results: Niche and growth rate differences were positively and negatively correlated with sympatry, respectively, as expected from theory. Conclusion: Our results agree with theory and suggest that fitness differences can be approximated from average species growth. Prey- and microhabitat-resource partitioning, operating through divergent pitcher and vegetative traits respectively, are likely mechanisms that stabilise the coexistence of sympatric Nepenthes species.
A Unifying Theory for Runge-Kutta-like Time Integrators: Convergence and Stability
Creators: name: Izgin, Thomas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L20, 34D20, 65L05

description: The work deals with two major topics concerning the numerical analysis of Runge-Kutta-like (RK-like) methods, namely their stability and order of convergence. RK-like methods differ from additive RK methods in that their coefficients are allowed to depend on the solution and the step size. As a result of this, we also refer to them as non-standard additive RK (NSARK) methods. The first major part of this thesis is dedicated to providing a tool for deriving order conditions for NSARK methods. The proposed approach may yield implicit order conditions, which can be rewritten in explicit form using the NB-series of the stages. The obtained explicit order conditions can be further reduced using Gröbner bases computations. With the presented approach, it was possible for the first time to obtain conditions for the construction of 3rd and 4th order GeCo as well as 4th order MPRK schemes. Moreover, a new fourth order MPRK method is constructed using our theory and the order of convergence is validated numerically. The second major part is concerned with the stability of nonlinear time integrators preserving at least one linear invariant. We discuss how the given approach generalizes the notion of A-stability. We can prove that investigating the Jacobian of the generating map is sufficient to understand the stability of the nonlinear method in a neighborhood of the steady state. This approach allows for the first time the investigation of several modified Patankar. In the case of MPRK schemes, we compute a general stability function in a way that can be easily adapted to the case of PDRS. Finally, the approach from the theory of dynamical systems is used to derive a necessary condition for avoiding unrealistic oscillations of the numerical approximation.
description: Doctoral thesis
Supplementary document for Semi-spontaneous temporal evolution of relief/fluorescence hybrid gratings for holographic encryption - 6680139.pdf
Creators: name: Tao, Yuxin
name: Liu, Hongfang
name: Wang, Xiuli
name: Liu, Zhong
name: Li, Xin
name: Miao, Jingying
name: Fu, Shencheng
name: Zhang, Xintong
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: AFM, Absorption spectra, Fluorescence spectra, 3D and multi-level encryption strategies
Oral history interview with Rita, 1981
Publisher: name: Columbia University
Year: 2020
Subjects: Drug addicts--United States
Drug dealers--United States
Drug traffic--History--20th century.--United States
Heroin abuse--History--20th century.--United States
Alcoholism
Drug addicts--Rehabilitation--United States
Methadone maintenance--History--20th century.--United States

description: In this interview, Rita discusses her life in New York City, with a focus on her drug use. She describes many facets of her upbringing including her family's frequent moves, the absence of her mother, and her brothers staying at the Mount Loretto orphanage. She analyzes how these and other childhood experiences contributed to her addiction. She discusses being sent to Rockland State Hospital in Orangeburg, New York from the age of thirteen to fifteen for psychiatric help. She discusses her struggle with alcoholism from age thirteen to thirty-five. Rita discusses how she owned and operated several businesses in her adult life, including a private taxi company, a restaurant, and a lunchonette. She describes her struggles with her weight, and being incentivized to use heroin for the first time at forty-nine years of age by the prospect of weight loss. She discusses participating in sex work. She describes detoxing several times at Interfaith Hospital, Jacobi Hospital, and Morris J. Bernstein Institute. She discusses briefly selling drugs, and describes her clientele, suppliers, and method of distribution. She describes her experience attending the Frances Delafield Hospital methadone program and Lincoln Detox. She describes being drug-free from 1973 to 1981, during which time she had consistent and vivid dreams about using heroin. She discusses her relapse in 1981. She discusses the change in quality and price of heroin between the 1960s and the 1980s. Rita also describes using sleeping pills, Dilaudid, and Dolophines in the 1960s when heroin was not readily available
Aspects of the D=6, (2,0) Tensor Multiplet
Creators: name: Howe, P. S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Some aspects of the $D=6, (2,0)$ tensor multiplet are discussed. Its formulation as an analytic superfield on a suitably defined superspace and its superconformal properties are reviewed. Powers of the field strength superfield define a series of superconformal fields which correspond to the KK multiplets of D=11 supergravity on an $AdS_7\xz S^4$ background. Correlation functions of these operators are briefly discussed.
description: 12 pages
Accesibilidad en CABA: conclusiones de 10 años de observación electoral
Creators: name: Santamarina, Sofia
name: Ingrassia, Daniel
Publisher: name: figshare
Year: 2021
Subjects: subject: 180114 Human Rights Law
subject: FOS: Law

description: Colaboración para la revista del Observatorio de Reforma Electoral del Gobierno de la Ciudad Autónoma de Buenos Aires, dedicada a la accesibilidad electoral.El artículo presenta un diagnóstico y las principales conclusiones acerca de la accesibilidad electoral en la Ciudad de Buenos Aires, basándose en las misiones de observación electoral realizadas desde la Defensoría del Pueblo CABA.Como conclusiones, el trabajo destaca el aumento en la accesibilidad de los establecimientos electorales; mayor habilitación de baños para personas con discapacidad y el armado y notoriedad de los Cuartos Oscuros Accesibles (COA); y que actualmente los problemas que se presentan están vinculados con la colocación de las boletas.Cabe destacar que desde el 2009 este organismo porteño, observa las elecciones que se realizan en el ámbito de la Ciudad ya que tiene como misión constitucional la defensa, protección y promoción de los derechos humanos y demás derechos y garantías e intereses individuales, colectivos y difusos (Art. 137º de la constitución de la CABA) y, como parte del ejercicio y goce de estos derechos, se encuentra entre sus competencias, la vigilancia, protección y promoción de los derechos políticos y electorales.
The Master Field in Generalised $QCD_2$
Creators: name: Gopakumar, Rajesh
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: As an illustration of the formalism of the master field we consider generalised $QCD_2$. We show how Wilson Loop averages for an arbitrary contour can be computed explicitly and with some ease. A generalised Hopf equation is shown to govern the behaviour of the eigenvalue density of Wilson loops. The collective field description of the theory is therefore deduced. Finally, the non-trivial master gauge field and field strengths are obtained. These results do not seem easily accessible with conventional means.
description: 18 pages (big), 2 postscript figures, harvmac, epsf
Additional file 12: of Chromosome rearrangements shape the diversification of secondary metabolism in the cyclosporin producing fungus Tolypocladium inflatum
Creators: name: Olarte, Rodrigo
name: Menke, Jon
name: Zhang, Ying
name: Sullivan, Shawn
name: Slot, Jason
name: Huang, Yinyin
name: Badalamenti, Jonathan
name: Quandt, Alisha
name: Spatafora, Joseph
name: Bushley, Kathryn
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: Ecology
subject: Marine Biology
subject: Plant Biology
subject: Computational Biology

description: Figure S8. Terpene synthase and terpene cyclase phylogenetic trees. (PDF 19.0 Mb)
Evidence for pitcher trait-mediated coexistence between sympatric Nepenthes pitcher plant species across geographical scales
Creators: name: Weng Ngai Lam
name: Lai, Hao Ran
name: Lee, Chien C.
name: Tan, Hugh T. W.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Plant Biology

description: Background: According to modern coexistence theory, ecologically similar species can coexist if fitness differences between them are small, or niche differences between them are large. However, these predictions have not been tested extensively in real systems and are difficult to examine in traits-based studies. Aims: The aim of our study was by using the carnivorous pitcher plant genus Nepenthes as a model system, to examine (1) species growth ranks as a proxy for fitness; (2) modern coexistence theory at a geographical scale; (3) evidence for pitcher trait-mediated resource partitioning between sympatric Nepenthes species. Methods: We used growth ranks, obtained from a survey of experienced Nepenthes nursery owners, as a proxy for fitness. Multivariate pitcher-, vegetative- or combined-trait distances, computed from morphometric-trait data from the literature were used as proxies for niche differences. Data on global Nepenthes species-pair sympatry was modelled against these fitness and niche differences. Results: Niche and growth rate differences were positively and negatively correlated with sympatry, respectively, as expected from theory. Conclusion: Our results agree with theory and suggest that fitness differences can be approximated from average species growth. Prey- and microhabitat-resource partitioning, operating through divergent pitcher and vegetative traits respectively, are likely mechanisms that stabilise the coexistence of sympatric Nepenthes species.
High resolution optical and near-IR imaging of the quadruple quasar RX J0911.4+0551
Creators: name: Burud, I.
name: Courbin, F.
name: Lidman, C.
name: Jaunsen, A.
name: Hjorth, J.
name: Ostensen, R.
name: Andersen, M.
name: Clasen, J.
name: Wucknitz, O.
name: Meylan, G.
name: Magain, P.
name: Stabell, R.
name: Refsdal, S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3.1", it is the quadruply imaged QSO with the widest known angular separation. Raw and deconvolved data reveal an elongated lens galaxy. The observed reddening in at least two of the four QSO images suggests differential extinction by this lensing galaxy. We show that both an ellipticity of the galaxy (epsilon_{min}=0.075) and an external shear (gamma_{min}=0.15) from a nearby mass has to be included in the lensing potential in order to reproduce the complex geometry observed in RX J0911.4+0551. A possible galaxy cluster is detected about 38", from RX J0911.4+0551 and could contribute to the X-ray emission observed by ROSAT in this field. The color of these galaxies indicates a plausible redshift in the range of 0.6-0.8.
description: 11 pages + 2 color figures, accepted for publication in ApJ Letters
Jacobi Mapping Approach for a Precise Cosmological Weak Lensing Formalism
Creators: name: Grimm, Nastassia
name: Yoo, Jaiyul
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cosmological weak lensing has been a highly successful and rapidly developing research field since the first detection of cosmic shear in 2000. However, it has recently been pointed out in Yoo et al. that the standard weak lensing formalism yields gauge-dependent results and, hence, does not meet the level of accuracy demanded by the next generation of weak lensing surveys. Here, we show that the Jacobi mapping formalism provides a solid alternative to the standard formalism, as it accurately describes all the relativistic effects contributing to the weak lensing observables. We calculate gauge-invariant expressions for the distortion in the luminosity distance, the cosmic shear components and the lensing rotation to linear order including scalar, vector and tensor perturbations. In particular, the Jacobi mapping formalism proves that the rotation is fully vanishing to linear order. Furthermore, the cosmic shear components contain an additional term in tensor modes which is absent in the results obtained with the standard formalism. Our work provides further support and confirmation of the gauge-invariant lensing formalism needed in the era of precision cosmology.
description: 33 pages, no figures, published in JCAP
Maxwell Chern Simons Theory in a Geometric Representation
Creators: name: Leal, Lorenzo
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We quantize the Maxwell Chern Simons theory in a geometric representation that generalizes the Abelian Loop Representation of Maxwell theory. We find that in the physical sector, the model can be seen as the theory of a massles scalar field with a topological interaction that enforces the wave functional to be multivalued. This feature allows to relate the Maxwell Chern Simons theory with the quantum mechanics of particles interacting through a Chern Simons field
description: 12 pages, LaTeX
Investigating the role of Sphingosine Kinase 1 pathway in cancer cell-monocyte interactions
Creators: name: Farinha Garcao Nunes, Joao Pedro
Publisher: name: Imperial College London
Year: 2013

description: Strong evidence suggests that the tumour microenvironment is inflammatory and that activation of the innate immune system plays a role in cancer progression, therefore targeting the multiple interactions of tumour cells with other cell types within the tumour microenvironment may lead to development of new cancer therapies. Sphingosine kinase (SPHK1) is a tumour-associated enzyme whose over-expression has been linked to patient mortality in many types of cancer. Here I investigate whether activation of the SPHK1 pathway, with a known involvement in inflammatory responses, is a signal transduction component of the tumour-monocyte/macrophage cellular interaction and a key element in inflammation-related cancer progression. Using a co-culture model, this study shows that the presence of monocytes increases cancer cell proliferation, an effect abrogated by knockdown of SPHK1 in cancer cells. Both monocytes and cancer cells showed a transient increase in SPHK1 activity and mRNA expression levels together with an increase in MCP-1 and IL-6 secretion. Silencing of SPHK1 in cancer cells abrogated SPHK1 activation in monocytes and pharmacological inhibition of SPHK1 in monocytes cells decreased monocyte induced-SPHK1 expression in cancer cells. Mechanistically, activation of AKT was observed in cancer cells upon co-culture with monocytes, an effect that was abrogated when cancer cells were pre-treated with siRNA for SPHK1. Moreover, the increase of phospho-AKT, ERK1/2 and NF-KB in monocytes by cancer cells was also reduced by RNAi-mediated knockdown of SPHK1 in cancer cells. My data show that STAT1 can bind to SPHK1 promoter or coding region and may be involved in SPHK1 transcriptional regulation in cancer cells upon monocyte stimulation, however its role still remains unclear as it acts as a transcriptional repressor of SPHK1. Monocytes induced cancer cell chemoprotection via a SPHK1-dependent mechanism, and reduced the inhibitory effect of docetaxel on cancer cell proliferation. Accordingly, increased AKT and ERK1/2 phosphorylation in monocytes were also affected by siRNA targeting of SPHK1 in docetaxel treated cancer cells. Altogether I show for the first time that selective inhibition of SPHK1 in tumour cells can affect their interaction with surrounding cells through the modulation of signal transduction pathways (ERK, PI3K, NF-kB) and cytokine exchange (IL-6, MCP-1 and potentially S1P, GM-CSF, GROα, IL-32 and ICAM-1). SPHK1-mediated increase in proliferation and chemoresistance of cancer cells conferred by monocytes renders this enzyme a promising target for future cancer therapies.
title: ADCO, Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Cart. 173 (11 H 939), 226 folios, f. 0383
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0383, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0383, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: abbaye de Cîteaux
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: http://www.wikidata.org/entity/Q843261
Optimizing single-photon quantum radar detection through partially postselected filtering
Creators: name: Li, Liangsheng
name: Liu, Maoxin
name: You, Wen-Long
name: Zhang, Chengjie
name: Zhang, Shengli
name: Yin, Hongcheng
name: Xiao, Zhihe
name: Zhu, Yong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this study, we explore an approach aimed at enhancing the transmission or reflection coefficients of absorbing materials through the utilization of joint measurements of entangled photon states. On the one hand, through the implementation of photon catalysis in the reflected channel, we can effectively modify the state of the transmission channel, leading to a notable improvement in the transmission ratio. Similarly, this approach holds potential for significantly amplifying the reflection ratio of absorbing materials, which is useful for detecting cooperative targets. On the other hand, employing statistical counting methods based on the technique of heralding on zero photons, we evaluate the influence of our reflection enhancement protocol for detecting noncooperative targets, which is validated through Monte Carlo simulations of a quantum radar setup affected by Gaussian white noise. Our results demonstrate a remarkable enhancement in the signal-to-noise ratio of imaging, albeit with an increase in mean-square error. These findings highlight the potential practical applications of our approach in the implementation of quantum radar.
description: 11 pages, 10 figures
Temperature programed desorption of water ice from the surface of amorphous carbon and silicate grains as related to planet-forming disks
Creators: name: Potapov, Alexey
name: Jäger, Cornelia
name: Henning, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the history and evolution of small bodies, such as dust grains and comets, in planet-forming disks is very important to reveal the architectural laws responsible for the creation of planetary systems. These small bodies in cold regions of the disks are typically considered as mixtures of dust particles with molecular ices, where ices cover the surface of a dust core or are actually physically mixed with dust. Whilst the first case, ice-on-dust, has been intensively studied in the laboratory in recent decades, the second case, ice-mixed-with-dust, present uncharted territory. This work is the first laboratory study of the temperature-programmed desorption (TPD) of water ice mixed with amorphous carbon and silicate grains. We show that the kinetics of desorption of H2O ice depends strongly on the dust/ice mass ratio, probably, due to the desorption of water molecules from a large surface of fractal clusters composed of carbon or silicate grains. In addition, it is shown that water ice molecules are differently bound to silicate grains in contrast to carbon. The results provide a link between the structure and morphology of small cosmic bodies and the kinetics of desorption of water ice included in them.
description: Submitted to the Astrophysical Journal
youth Digital Skills Indicator. Italian questionnaire
Creators: name: Mascheroni, Giovanna
name: Helsper, Ellen J.
name: Schneider, Luc S.
name: van Deursen, Alexander J.A.M.
name: van Laar, Ester
Publisher: name: Zenodo
Year: 2021
Subjects: Digital skills
survey
questionnaire

description: The youth Digital Skills Indicator was developed as part of the ‘Youth Skills (ySKILLS)’ project and added to the ‘From Digital Skills to Tangible Outcomes’ digital skills measurement toolkit. Please read the accompanying document on the underlying rationale for these scales and on how to create and use composite scales in the following document: Helsper, E.J., Schneider, L., van Deursen, A.J.A.M., van Laar, E. (2021). The youth Digital Skills Indicator: Report on the conceptualisation and development of the ySKILLS digital skills measure. KU Leuven, Leuven: ySKILLS. Available at: https://yskills.eu.
The implications of radio-quiet neutron stars
Creators: name: Brazier, K. T. S.
name: Johnston, S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We collate the evidence for rotation-powered neutron stars that are visible as X-ray sources and not as radio pulsars. Quantitative upper limits exist for the radio fluxes of eight objects, revealing a population at least an order of magnitude less luminous at radio wavelengths than known radio pulsars of similar power or age. These objects could have intrinsically low radio luminosities, but a simple alternative explanation is that they are pulsars in which the radio beams are directed away from Earth. Where hard X-ray or gamma-ray fluxes are seen, the beaming explanation implies different emission sites for the high-energy radiation and the unseen radio beams. We estimate that (a) the radio beaming fraction of young pulsars is roughly 50%, certainly much less than 100%, and (b) one neutron star is born in the Galaxy every ~90 years. We conclude that probably all neutron stars are born as radio pulsars and that most young, nearby pulsars have already been discovered.
description: 10 pages, 2 figures, TeX, uses mn.tex, submitted Oct 97 to MNRAS, waiting for referee's report
Additional file 1 of Competitive blocking of salivary gland [18F]DCFPyL uptake via localized, retrograde ductal injection of non-radioactive DCFPyL: a preclinical study
Creators: name: Roy, Jyoti
name: Warner, Blake M.
name: Basuli, Falguni
name: Zhang, Xiang
name: Zheng, Changyu
name: Goldsmith, Corrine
name: Phelps, Tim
name: Wong, Karen
name: Ton, Anita T.
name: Pieschl, Rick
name: White, Margaret E.
name: Swenson, Rolf
name: Chiorini, John A.
name: Choyke, Peter L.
name: Lin, Frank I.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1. SI Figure 1–SI Figure 6.
Development of multifunctional nano-probes for neuroscience research
Creators: name: Babakinejad, Babak
Publisher: name: Imperial College London
Year: 2013

description: The contribution of nanotechnology to the field of Neuroscience is increasing exponentially. In order to understand the relationship of structure to function at the cellular level, and to decipher the mysteries of nervous system, development of new tools to manipulate and measure cellular function at a local level is necessary. It is a continuing challenge to develop easily fabricated, multipurpose nano-probes which are able to target neural nanostructures for the local manipulation and measurement of functional responses. This thesis is focused on the fabrication, characterisation and implementation of a nano-pipette on a Scanning Ion Conductance Microscopy (SICM). The nano-pipette mounted on a SICM set-up acts as a proximity sensor for non-contact imaging of cellular features. SICM platform to accommodate electrochemical experiments is discussed. In particular, the development of a novel electrochemical probe, fabricated by pyrolytic decomposition of carbon within a quartz nano-pipette is discussed. This method is simple and carbon nano-electrodes of variable size can be fabricated in a single step. The nano-pipette‘s distance controlled feedback system was exploited for local delivery of chemicals to neuronal structures. Experimental and theoretical data are compared in order to calculate the concentration of molecules at the tip of the nano-pipette as a function of the driving force (voltage or pressure) and distance. The quantitative delivery of molecules from a 100 nm nano-pipette is demonstrated. In particular capsaicin-filled nano-pipette is used to trigger capsaicin-sensitive TRPV1 receptors in sensory neurons and transfected cells. Finally some preliminary results for the future development and potential application of nano-pipettes are shown. The nano-pipette is easily fabricated and is shown to be multi-functional. It provides an invaluable tool in the investigation of the nano-physiology of neurons. The SICM multipoint delivery competence can contribute to the various endeavours in drug discovery and to the yield of in vitro pharmacological assays.
Monstrous String-String Duality
Creators: name: Chaudhuri, S.
name: Lowe, D. A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the general class of supersymmetry preserving orbifolds of strong/weak Type IIA/heterotic dual pairs in six dimensions and below. A unified treatment is given by considering compactification to two spacetime dimensions and constructing orbifolds by subgroups of the Fischer-Greiss monster, utilizing the moonshine results of Conway and Norton. Duality requires nontrivial Ramond-Ramond fluxes on the Type IIA side which are localized at the fixed points. Further orbifolding by (-1)^{F_L} gives examples of new four dimensional N=2 Type IIA vacua which are not conformal field theory backgrounds.
description: 18 pages, harvmac, tables (Final version to appear in Nucl. Phys. B.)
Detection of chronic bee paralysis virus using ultra-rapid PCR and nested ultra-rapid PCR
Creators: name: Byounghee Kim
name: Jungmin Kim
name: Somin Kim
name: Moonjung Kim
name: A. Tai Truong
name: Kyoungjoo Cho
name: Byoungsu Yoon
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: The chronic bee paralysis virus (CBPV), which causes paralysis in bees, is very difficult to visually differentiate from other pathogens causing symptoms of paralysis. In addition, low numbers of viral gene molecules are difficult to detect. Therefore, this study was conducted to develop an ultra-rapid quantitative polymerase chain reaction (PCR) and nested PCR method for specifically detecting CBPV. This method is based on rapid and precise quantification of the RNA virus CBPV, using ultra-rapid reverse transcription PCR and nested PCR to overcome difficulties in detecting low numbers of viral gene molecules. Under optimal conditions, CBPV-specific ultra-rapid PCR confirmed that 1.0 × 108 CBPV-specific genes could be detected in 4 min and 17 s, and 1.0 × 102 CBPV-specific genes could be detected in 11 min and 16 s. The detection of 1.0 × 102 CBPV-specific genes was conducted by nested PCR using the inner primer set CBPV-NF/NR. High-sensitivity detection was demonstrated by confirming that the PCR product for the initial template of 1.0 × 10° CBPV-specific gene was detectable. The CBPV-specific ultra-rapid quantitative PCR and nested PCR methods are applicable for infected honey bee samples to rapidly and accurately detect low numbers of viral gene molecules. This method can be used on-site where the infected sample is collected as well as in the laboratory. This method may also be applied to detect for other honey bee pathogens with a suitable primer for each pathogen.
Branes on the Brane
Creators: name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that four-dimensional N=2 ungauged Einstein-Maxwell supergravity can be embedded on the Randall-Sundrum 3-brane, as a consistent Kaluza-Klein reduction of five-dimensional N=4 gauged supergravity. In particular, this allows us to describe four-dimensional Reissner-Nordstrom black holes within the Randall-Sundrum scenario. Using earlier results on the embedding of five-dimensional N=4 gauged supergravity in ten dimensions, we can then describe the four-dimensional Einstein-Maxwell supergravity on the 3-brane, and its solutions, from a type IIB viewpoint. We also show that the minimal ungauged supergravities in D=5 and D=6 can be consistently embedded in the half-maximally supersymmetric gauged supergravities in D=6 and D=7 respectively. These allow us to construct solutions including BPS black holes and strings living in "Randall-Sundrum 4-branes," and BPS self-dual strings living in "Randall-Sundrum 5-branes." We can also lift the embeddings to ten-dimensional massive type IIA and D=11 supergravity respectively. In particular, we obtain a solution describing the self-dual string living in the world-volume of an M5-brane, which can be viewed as an open membrane ending on the M5-brane.
description: Latex, 19 pages. Comments added and typos corrected
Oral history interview with Robert A. Penk 1974
Publisher: name: Columbia University
Year: 2019
Subjects: Railroads--Freight
Trucking
Shipment of goods

description: Employment with Continental Can from 1945: rate clerk, regional traffic manager, real estate manager; in 1971 general manager of traffic and distribution: railroad rate structure, railroads vs. trucks; Continental's trucking fleet; decentralization of traffic operations; lobbying; unions; national transportation associations.
Morphology of the Nuclear Disk in M87
Creators: name: Tsvetanov, Z. I.
name: Allen, M. G.
name: Ford, H. C.
name: Harms, R. J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A deep, fuly sampled diffraction limited (FWHM ~ 70 mas) narrow-band image of the central region in M87 was obtained with the Wide Filed and Planetary Camera 2 of the Hubble Space Telescope using the dithering technique. The H-alpha+[NII] continuum subtracted image reveals a wealth of details in the gaseous disk structure described earlier by Ford et al. (1994). The disk morphology is dominated by a well defined three-arm spiral pattern. In addition, the major spiral arms contain a large number of small "arclets" covering a range of sizes (0.1-0.3 arcsec = 10-30 pc). The overall surface brightness profile inside a radius ~1.5" (100 pc) is well represented by a power-law I(mu) ~ mu^(-1.75), but when the central ~40 pc are excluded it can be equally well fit by an exponential disk. The major axis position angle remains constant at about PA_disk ~ 6 deg for the innermost ~1", implying the disk is oriented nearly perpendicular to the synchrotron jet (PA_jet ~ 291 deg). At larger radial distances the isophotes twist, reflecting the gas distribution in the filaments connecting to the disk outskirts. The ellipticity within the same radial range is e = 0.2-0.4, which implies an inclination angle of i~35 deg. The sense of rotation combined with the dust obscuration pattern indicate that the spiral arms are trailing.
description: 5 pages, 3 postscript figures, to appear in the Proceedings of the M87 Workshop, Ringberg castle, Germany, 15-19 Sep 1997, also available from http://jhufos.pha.jhu.edu/~zlatan/papers.html
Fast and Scalable Bayesian Deep Learning by Weight-Perturbation in Adam
Creators: name: Khan, Mohammad Emtiyaz
name: Nielsen, Didrik
name: Tangkaratt, Voot
name: Lin, Wu
name: Gal, Yarin
name: Srivastava, Akash
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Uncertainty computation in deep learning is essential to design robust and reliable systems. Variational inference (VI) is a promising approach for such computation, but requires more effort to implement and execute compared to maximum-likelihood methods. In this paper, we propose new natural-gradient algorithms to reduce such efforts for Gaussian mean-field VI. Our algorithms can be implemented within the Adam optimizer by perturbing the network weights during gradient evaluations, and uncertainty estimates can be cheaply obtained by using the vector that adapts the learning rate. This requires lower memory, computation, and implementation effort than existing VI methods, while obtaining uncertainty estimates of comparable quality. Our empirical results confirm this and further suggest that the weight-perturbation in our algorithm could be useful for exploration in reinforcement learning and stochastic optimization.
description: Camera ready version
An Exact Black Hole Entropy Bound
Creators: name: Birmingham, Danny
name: Sen, Siddhartha
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that a Rademacher expansion can be used to establish an exact bound for the entropy of black holes within a conformal field theory framework. This convergent expansion includes all subleading corrections to the Bekenstein-Hawking term.
description: 6 pages, Latex, v2 minor re-wording, additional reference, to appear in Phyical Review D (title changed in journal)
Oral history interview with Robert B. Mesrobian 1975
Publisher: name: Columbia University
Year: 2019
Subjects: Chemists
Research, Industrial
Nuclear engineering
Manufacturing processes

description: Princeton, Manhattan Project, 1941-45; polymer technology, teaching at Brooklyn Polytechnic; Herman F. Mark; Fulbright professorship in Holland; 1956 to Continental Can in charge of Central Research Laboratory; general manager of centralized research and development, Chicago; establishing corporate Research and Development for long term technology, 1961; development of Conoweld can, plastic beverage bottles, durable coatings and inks, two-piece cans, enviroend cans.
Evolution of Magnetic and Orbital Properties in the Magnetically-Diluted A-Site Spinel Cu$_{1-x}$Zn$_x$Rh$_2$O$_4$
Creators: name: Zakrzewski, A. V.
name: Gangopadhyay, S.
name: Aczel, A. A.
name: Calder, S.
name: Williams, T. J.
name: MacDougall, G. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In frustrated spinel antiferromagnets, dilution with non-magnetic ions can be a powerful strategy for probing unconventional spin states or uncovering interesting phenomena. Here, we present X-ray, neutron scattering and thermodynamic studies of the effects of magnetic dilution of the tetragonally-distorted A-site spinel antiferromagnet, CuRh$_2$O$_4$, with non-magnetic Zn$^{2+}$ ions. Our data confirm the helical spin order recently identified at low-temperatures in this material, and further demonstrate a systematic suppression of the associated Néel temperature with increasing site dilution towards a continuous transition with critical doping of $x_{spin} \sim 0.44$. Interestingly, this critical doping is demonstrably distinct from a second structural critical point at $x_{JT} \sim 0.6$, which is consistent with the suppression of orbital order on the A-site through a classical percolative mechanism. This anomalously low value for $x_{spin}$ is confirmed via multiple measurements, and is inconsistent with predictions of classical percolation theory, suggesting that the spin transition in this material is driven by an enhancement of pre-existing spin fluctuations with weak dilution.
description: 9 pages, 5 figures
Additional file 4: of Genetic dissection of yield-related traits and mid-parent heterosis for those traits in maize (Zea mays L.)
Creators: name: Yi, Qiang
name: Liu, Yinghong
name: Hou, Xianbin
name: Zhang, Xiangge
name: Li, Hui
name: Zhang, Junjie
name: Liu, Hanmei
name: Hu, Yufeng
name: Yu, Guowu
name: Li, Yangping
name: Wang, Yongbin
name: Huang, Yubi
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Mental Health
subject: Plant Biology

description: Table S2. The performance of yield-related traits in the RILs, the IF2 population, and the MPH dataset across all environments. EWPE, ear weight per ear; CWPE, cob weight per ear; ED, ear diameter; CD, cob diameter; EL, ear length; RN, row number; KNPR, kernel number per row; KWPE, kernel weight per row; RKP, rate of kernel production. a F1, The cross of 08–641 × YE478. RIL, the recombinant inbred lines. b IF2 and MPH indicate the immortalized F2 population and mid-parent heterosis, respectively. c Mean ± SE represents mean across all environments ± standard error. d MPH (%) = (F1-(P1 + P2)/2)/((P1 + P2)/2)*100%. (DOCX 18 kb)
Academia Cuauhtli : bilingual/bicultural teacher expertise in a cultural and linguistic revitalization project
Creators: name: Bell, Randy Clinton
name: 0000-0003-2888-8075
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Bilingual education
Ethnic studies
Dual language education
Decolonial

description: In this dissertation I considered the work of bilingual/bicultural teachers as they worked collaboratively to design and implement a linguistic and cultural revitalization program called Academia Cuauhtli. I engaged Critical Ethnography along with decolonial theory in order to make sense of the linguistic, curricular and pedagogical priorities and enactments of two focal research partners. I further situated my study around established and emerging theories of translanguaging and raciolinguistic ideologies as I sought insights into the linguistic, pedagogical and curricular priorities and becomings of bilingual/bicultural teachers. Interrelated findings situate the teachers values, beliefs and teaching within Academia Cuauhtli as a unique epistemological space in which teachers and community members make sense of current sociopolitical and geohistorical influences in their lives. Furthermore, findings suggest that Academia Cuauhtli serves as a unique cultural and linguistic space in which bilingual/bicultural teachers are able to support intergenerational learning, sustaining language practices and dialogic relationality. Implications are included regarding language policy, dual language education, Ethnic Studies, teacher education and research design.