cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kababayen-an han karak-an (women of storm surges) : a feminist ethnographic research on Waray women survivors of super typhoon Yolanda
Creators: name: Go, Chaya Ocampo
Publisher: name: University of British Columbia
Year: 2016

description: Two years after super typhoon Yolanda (internationally named Haiyan) ravaged the Visayan region of the Philippines, survivors of Leyte Island who were at the front line of the strongest storm in recorded history persist through waves of disaster. Anthropologists of disaster argue there is a need to trouble the assumed uniformity of disaster experiences in the same manner that feminist scholars argue for an intersectional analysis of vulnerabilities as shaped by racism, sexism, and ongoing projects of colonialism. This ethnographic research inquires: How do Waray women survivors make meaning of super typhoon Yolanda as expressed in their survival testimonies and disaster symbolisms? How do they view their everyday life in relation to the rain, rivers, and the sea? How do they mobilize memories of Yolanda to engage in practises of social repair? This on-site feminist ethnographic research was conducted in the town of Palo in the summer of 2015, with 12 self-identified Waray women interviewed from the three barangays or villages of San Miguel, Salvacion and Cogon. I argue that women survivors employ disaster memory as a cultural practise to repair their worldview, insisting on an ontology that still holds some meaning despite the wrathful destruction of a super typhoon that pounds repeatedly through the everyday violence of poverty. This thesis outlines how the women (a) personify the storm; (b) explain order and safety in cycles and seasons; and (c) explain syncretic theologies pertaining to ideas of justice. Writing as a transnational Filipina scholar-activist, I frame my work to serve a feminist and decolonizing purpose by weaving the women’s survival testimonies together as acts of resistance over the chronic crises of everyday poverty, Yolanda and larger colonial histories. This thesis offers a Waray theory of survivance defined by an ancient ferocity in the Eastern Visayas, which claims a full humanity persisting through disaster deathscapes and the colonial present.
Crocothemis servilia Drury
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Crocothemis
Crocothemis servilia

description: 111. Crocothemis servilia (Drury) - Common.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 15, DOI: 10.5281/zenodo.3251875
A Chemical turnstile
Creators: name: Lee, W. T.
name: Salje, E. K. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A chemical turnstile is a device for transporting small, well-characterised doses of atoms from one location to another. A working turnstile has yet to be built, despite the numerous technological applications available for such a device. The key difficulty in manufacturing a chemical turnstile is finding a medium which will trap and transport atoms. Here we propose that ferroelastic twin walls are suitable for this role. Previous work shows that twin walls can act as two-dimensional trapping planes within which atomic transport is fast. We report simulations showing that a stress-induced reorientation of a twin wall can occur. This behaviour is ideal for chemical turnstile applications.
description: 2 pages, 3 figures
Search For Trapped Antihydrogen
Creators: name: Andresen, Gorm B.
name: Ashkezari, Mohammad D.
name: Baquero-Ruiz, Marcelo
name: Bertsche, William
name: Bowe, Paul D.
name: Bray, Crystal C.
name: Butler, Eoin
name: Cesar, Claudio L.
name: Chapman, Steven
name: Charlton, Michael
name: Fajans, Joel
name: Friesen, Tim
name: Fujiwara, Makoto C.
name: Gill, David R.
name: Hangst, Jeffrey S.
name: Hardy, Walter N.
name: Hayano, Ryugo S.
name: Hayden, Michael E.
name: Humphries, Andrew J.
name: Hydomako, Richard
name: Jonsell, Svante
name: Jørgensen, Lars V.
name: Kurchaninov, Lenoid
name: Lambo, Ricardo
name: Madsen, Niels
name: Menary, Scott
name: Nolan, Paul
name: Olchanski, Konstantin
name: Olin, Art
name: Povilus, Alexander
name: Pusa, Petteri
name: Robicheaux, Francis
name: Sarid, Eli
name: Nasr, Sarah Seif El
name: Silveira, Daniel M.
name: So, Chukman
name: Storey, James W.
name: Thompson, Robert I.
name: van der Werf, Dirk P.
name: Wilding, Dean
name: Wurtele, Jonathan S.
name: Yamazaki, Yasunori
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the results of an experiment to search for trapped antihydrogen atoms with the ALPHA antihydrogen trap at the CERN Antiproton Decelerator. Sensitive diagnostics of the temperatures, sizes, and densities of the trapped antiproton and positron plasmas have been developed, which in turn permitted development of techniques to precisely and reproducibly control the initial experimental parameters. The use of a position-sensitive annihilation vertex detector, together with the capability of controllably quenching the superconducting magnetic minimum trap, enabled us to carry out a high-sensitivity and low-background search for trapped synthesised antihydrogen atoms. We aim to identify the annihilations of antihydrogen atoms held for at least 130 ms in the trap before being released over ~30 ms. After a three-week experimental run in 2009 involving mixing of 10^7 antiprotons with 1.3 10^9 positrons to produce 6 10^5 antihydrogen atoms, we have identified six antiproton annihilation events that are consistent with the release of trapped antihydrogen. The cosmic ray background, estimated to contribute 0.14 counts, is incompatible with this observation at a significance of 5.6 sigma. Extensive simulations predict that an alternative source of annihilations, the escape of mirror-trapped antiprotons, is highly unlikely, though this possibility has not yet been ruled out experimentally.
description: 12 pages, 7 figures
On a conjecture about Dirac's delta representation using q-exponentials
Creators: name: Chevreuil, A.
name: Plastino, A.
name: Vignat, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A new representation of Dirac's delta-distribution, based on the so-called q-exponentials, has been recently conjectured. We prove here that this conjecture is indeed valid.
Neurothemis Brauer 1867
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Neurothemis

description: 112. Neurothemis f 1uctuans (P.) - Very common throughout Sumatra.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 15, DOI: 10.5281/zenodo.3251875
Mantle Convection, Plate Tectonics, and Volcanism on Hot Exo-Earths
Creators: name: van Summeren, Joost
name: Conrad, Clinton P.
name: Gaidos, Eric
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Recently discovered exoplanets on close-in orbits should have surface temperatures of 100's to 1000's of K. They are likely tidally locked and synchronously rotating around their parent stars and, if an atmosphere is absent, have surface temperature contrasts of many 100's to 1000's K between permanent day and night sides. We investigated the effect of elevated surface temperature and strong surface temperature contrasts for Earth-mass planets on the (i) pattern of mantle convection, (ii) tectonic regime, and (iii) rate and distribution of partial melting, using numerical simulations of mantle convection with a composite viscous/pseudo-plastic rheology. Our simulations indicate that, if a close-in rocky exoplanet lacks an atmosphere to redistribute heat, a >~ 400 K surface temperature contrast can maintain an asymmetric degree 1 pattern of mantle convection in which the surface of the planet moves preferentially toward subduction zones on the cold night side. The planetary surface features a hemispheric dichotomy, with plate-like tectonics on the night side and a continuously evolving mobile lid day side with diffuse surface deformation and vigorous volcanism. If volcanic outgassing establishes an atmosphere and redistributes heat, plate tectonics is globally replaced by diffuse surface deformation and volcanism accelerates and becomes distributed more uniformly across the planetary surface.
description: 13 pages, 5 figures
Optical circular polarization in quasars
Creators: name: Hutsemékers, D.
name: Borguet, B.
name: Sluse, D.
name: Cabanac, R.
name: Lamy, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new optical circular polarization measurements with typical uncertainties < 0.1% for a sample of 21 quasars. All but two objects have null circular polarization. We use this result to constrain the polarization due to photon-pseudoscalar mixing along the line of sight. We detect significant (> 3 sigma) circular polarization in two blazars with high linear polarization and discuss the implications of this result for quasar physics. In particular, the recorded polarization degrees may be indicative of magnetic fields as strong as 1 kG or a significant contribution of inverse Compton scattering to the optical continuum.
description: Accepted for publication in Astronomy and Astrophysics Letters
Revised Red List of British Butterflies
Creators: name: Fox, Richard
name: Dennis, Emily B.
Publisher: name: Zenodo
Year: 2021
Subjects: Butterflies
Red List

description: A new Red List of butterfly species that breed in Great Britain is presented in summary form together with a worksheet to show the application of IUCN criteria to support the final classification of each species. The Red List is finished and the classification can be used, but a manuscript will be written during 2022 for publication in a scientific journal to describe the process, discuss implications for biodiversity conservation etc.
High temperature phase transition in the coupled atom-light system in the presence of optical collisions
Creators: name: Alodjants, A. P.
name: Chestnov, I. Yu.
name: Arakelian, S. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The problem of photonic phase transition for the system of a two-level atomic ensemble interacting with a quantized single-mode electromagnetic field in the presence of optical collisions (OC) is considered. We have shown that for large and negative atom-field detuning a photonic field exhibits high temperature second order phase transition to superradiant state under thermalization condition for coupled atom-light states. Such a transition can be connected with superfluid (coherent) properties of photon-like low branch (LB) polaritons. We discuss the application of metallic cylindrical waveguide for observing predicted effects.
description: 8 pages, 2 figures
Anomalous diffusion with log-periodic modulation in a selected time interval
Creators: name: Padilla, L.
name: Mártin, H. O.
name: Iguain, J. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: On certain self-similar substrates the time behavior of a random walk is modulated by logarithmic periodic oscillations on all time scales. We show that if disorder is introduced in a way that self-similarity holds only in average, the modulating oscillations are washed out but subdiffusion remains as in the perfect self-similar case. Also, if disorder distribution is appropriately chosen the oscillations are localized in a selected time interval. Both the overall random walk exponent and the period of the oscillations are analytically obtained and confirmed by Monte Carlo simulations.
description: 4 pages, 5 figures
Computational modelling of the collective stochastic motion of Kinesin nano motors
Creators: name: Jamali, Yousef
name: Foulaadvand, M. Ebrahim
name: Tabar, H. Rafii
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We have developed a two dimensional stochastic molecular dynamics model for the description of intra cellular collective motion of bio motors, in particular Kinesins, on a microtubular track. The model is capable or reproducing the hand-over-hand mechanism of the directed motion along the microtubule. The model gives the average directed velocity and the current of Kinesins along the microtubule. It is shown that beyond a certain density of Kinesins, the average velocity and current undergo notable decrease which is due to formation of traffic jams in the system.
description: 8 pages, 14 eps figures
Neurothemis fulvia Drury
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Neurothemis
Neurothemis fulvia

description: 113. Neurothemis fulvia (Drury) - Eastcoast Gvt.: Deli. Soekaranda (Kruger). Djambi Res.: Djambi Expep. 1925. 2 ♂, 2 ♀, O. Posthumus leg. Palembang Res.: Rambang River. Tjabangkiri. 1 ♀, May 27. 1933. native coli.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 15, DOI: 10.5281/zenodo.3251875
description: {"references": ["Kruger. L. Die Odonaten von Sumatra. I ~ III. Stett. ent. Zeitg. 59 - 63. 1898 - 1902."]}
A pedagogical introduction to the Slavnov formulation of quantum Yang-Mills theory
Creators: name: Ghorbani, Hossein
name: Esposito, Giampiero
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Over the last few years, Slavnov has proposed a formulation of quantum Yang-Mills theory in the Coulomb gauge which preserves simultaneously manifest Lorentz invariance and gauge invariance of the ghost field Lagrangian. This paper presents in detail some of the necessary calculations, i.e. those dealing with the functional integral for the S-matrix and its invariance under shifted gauge transformations. The extension of this formalism to quantum gravity in the Prentki gauge deserves consideration.
description: 16 pages, review paper
Light asymmetric dark matter from new strong dynamics
Creators: name: Frandsen, Mads T.
name: Sarkar, Subir
name: Schmidt-Hoberg, Kai
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A ~5 GeV `dark baryon' with a cosmic asymmetry similar to that of baryons is a natural candidate for the dark matter. We study the possibility of generating such a state through dynamical electroweak symmetry breaking, and show that it can share the relic baryon asymmetry via sphaleron interactions, even though it has no electroweak interactions. The scattering cross-section on nucleons, estimated in analogy to QCD, is within reach of underground direct detection experiments.
description: 4 pages, 4 figs. (RevTex)
Performance Study of IEEE802.11e QoS in EDCF-Contention-based Static and Dynamic Scenarios
Creators: name: Dridi, Khaled
name: Javaid, Nadeem
name: Djouani, Karim
name: Daachi, Boubaker
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we carry-out a study of the Quality of Service (QoS) mechanism in IEEE802.11e Enhanced Distribution Coordination Function (EDCF) and how it is achieved by providing traffics with different priorities. It can perform the access to the radio channel or just simply it can considerably be declined subsequently to a variation of network dynamicity. The results of the proposed analysis show that the EDCF scheduler looses the ability of the traffic differentiation and becomes insensitive to the QoS priority requirements. Consequently, it goes away from the region of stability and EDCF doesn't offer better performance than the conventional DCF scheme. Therefore, traffic specifications are weakly applied only for the channel occupation time distribution. During the handoff between the Base Stations (BS's), the response time of the data rate application within the roaming process grows to the initial throughput level. Performance metrics at the MAC layer, like throughput, End-2-End delay, and packet loss have been evaluated.
description: 4 Pages
Neurothemis palliata subsp. palliata Ramb.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Neurothemis
Neurothemis palliata
Neurothemis palliata palliata (ramb.)

description: 114. Neurothemis palliata palliata (Ramb.) - Atjeh Gvt.: Poeloe Weh. Sabang. Sept. 10. 1929 & March 20. 1932. Author & van Benthem Jutting leg. Eastcoas t Gvt.: Deli. Sibolangit, 500 m. Oct. 1929. Docters van Leeuwen leg. Benkoelen Res.: Lake Ranau distr.. Bandingagoeng. van Steenis leg. S. Lampoeng Res.: Mt. Tanggamoes. Waiberah. 500 m. Dec. 28-30. 1934. common with fluctuans and terminata. Author leg.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 15, DOI: 10.5281/zenodo.3251875
Collective phenomena in quasi-two-dimensional fermionic polar molecules: band renormalization and excitons
Creators: name: Babadi, Mehrtash
name: Demler, Eugene
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We theoretically analyze a quasi-two-dimensional system of fermionic polar molecules in a harmonic transverse confining potential. The renormalized energy bands are calculated by solving the Hartree-Fock equation numerically for various trap and dipolar interaction strengths. The inter-subband excitations of the system are studied in the conserving time-dependent Hartree-Fock (TDHF) approximation from the perspective of lattice modulation spectroscopy experiments. We find that the excitation spectrum consists of both inter-subband particle-hole excitation continuums and anti-bound excitons, arising from the anisotropic nature of dipolar interactions. The excitonic modes capture the majority of the spectral weight. We also evaluate the inter-subband transition rates in order to investigate the nature of the excitonic modes and find that they are anti-bound states formed from particle-hole excitations arising from several subbands. Our results indicate that the excitonic effects are present for interaction strengths and temperatures accessible in current experiments with polar molecules.
description: 21 pages, 12 figures
Electronic properties of molecular solids: the peculiar case of solid Picene
Creators: name: Roth, Friedrich
name: Gatti, Matteo
name: Cudazzo, Pierluigi
name: Grobosch, Mandy
name: Mahns, Benjamin
name: Büchner, Bernd
name: Rubio, Angel
name: Knupfer, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, a new organic superconductor, K-intercalated Picene with high transition temperatures $T_c$ (up to 18\,K) has been discovered. We have investigated the electronic properties of the undoped relative, solid picene, using a combination of experimental and theoretical methods. Our results provide detailed insight into the occuopied and unoccupied electronic states.
Energy based seismic design of a multi-storey hybrid building : timber-steel core walls
Creators: name: Goertz, Caleb
Publisher: name: University of British Columbia
Year: 2016

description: This thesis discusses a novel timber-steel core wall system for use in multi-storey buildings in high seismic regions. This hybrid system combines Cross Laminated Timber (CLT) panels with steel plates and connections to provide the required strength and ductility to core walled buildings. The system is first derived from first principles and validated in SAP2000. In order to assess the feasibility of the system it is implemented in the design of a 7-storey building based off an already built concrete benchmark building. The design is carried out following the equivalent static force procedure (ESFP) outlined by the National Building Code of Canada for Vancouver, BC. To evaluate the design bi-directional nonlinear time history analysis (NLTHA) is carried out on the building using a set of 10 ground motions based on a conditional mean spectrum. To improve the applicability of the hybrid system an energy based design methodology is proposed to design the timber-core walled building. The methodology is proposed as it does not rely on empirical formulas and force modification factors to determine the final design of the structure. NLTHA is carried out on the proposed methodology using 10 ground motions to evaluate the suitability of the method and the results are discussed and compared to the ESFP results.
Neurothemis terminata Ris.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Neurothemis
Neurothemis terminata

description: 115. Neurothemis terminata Ris. - Common in the S. Lampoeng Res. Also known from Benkoelen (Lake Ranau district) (Lieftinck).
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 16, DOI: 10.5281/zenodo.3251875
description: {"references": ["Lieftinck. M. A. Dragonflies (Odonata) from Northeast Sumatra. Misc. Zool. Sum. 34. 1929."]}
Global geometric entanglement in transverse-field XY spin chains: finite and infinite systems
Creators: name: Wei, Tzu-Chieh
name: Vishveshwara, Smitha
name: Goldbart, Paul M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The entanglement in quantum XY spin chains of arbitrary length is investigated via the geometric (measure of) entanglement. The emergence of entanglement is explained intuitively from the perspective of perturbations. The model is solved exactly and the energy spectrum is determined and analyzed in particular for the lowest two levels. The entanglement is obtained over the entire phase diagram, and its behavior can be used to delineate the boundaries in the phase diagram. For example, the field-derivative of the entanglement becomes singular along the critical line. The form of the divergence turns out to be dictated by the universality class controlling the quantum phase transition. The entanglement near criticality can be understood via a scaling hypothesis, analogous to that for free energies. The entanglement density vanishes along the so-called disorder line in the phase diagram, the ground space is doubly degenerate and spanned by two product states. The entanglement for the superposition of the lowest two states is also investigated. Even though the exact value of the entanglement depends on the specific form of superposition, in the thermodynamic limit the entanglement density is independent of the superposition, showing that the entanglement density is insensitive to whether the ground state is chosen to be the spontaneously $Z_2$ symmetry broken one or not. The finite-size scaling of entanglement at critical points is also investigated from two different view points: (1) the maximum in the field-derivative of the entanglement density vs. the system size, used to deduce the correlation length exponent for the Ising class by the behavior of entanglement; (2) the correction to the entanglement density vs. the system size, with the coefficient being universal (but with different values for the two lowest states).
description: Single column, 36 pages, 10 figures, 1 table, expansion of PRA 71, 060305 (R) (2005) with additional results; to appear in QIC
Characterization of myelin water imaging using a gradient and spin echo sequence in human brain and spinal cord
Creators: name: Ljungberg, Emil
Publisher: name: University of British Columbia
Year: 2016

description: Myelin water imaging is a quantitative magnetic resonance imaging technique that can be used as an in vivo biomarker for myelin in the central nervous system. In 2007, a paradigm shift took place when the standard sequence for myelin water imaging changed from a multi-echo spin echo sequence to a gradient and spin echo (GRASE) sequence. The GRASE sequence has so far only been applied to brain imaging, and reproducibility between different scan vendors has not been assessed. In this study I present the first implementation of myelin water imaging using GRASE in human cervical spinal cord. The reproducibility of myelin water imaging in the spinal cord was found to be high (coefficient of variation = 6.1%, Cronbach’s α = 0.89). A multicenter reproducibility study of myelin water imaging in brain between two scan vendors (Siemens and Philips) was also performed. Results from the two scanners were found to be highly correlated but with a significant offset in myelin water fraction of 4.3%. Together, these two studies provide strong evidence of the reproducibility of myelin water imaging. It is an important step forward in the development of bringing myelin water imaging to the mainstream.
Multistability at arbitrary low optical intensities in a metallo-dielectric layered structure
Creators: name: Ciattoni, Alessandro
name: Rizza, Carlo
name: Palange, Elia
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that a nonlinear metallo-dielectric layered slab of subwavelength thickness and very small average dielectric permittivity displays optical multistable behavior at arbitrary low optical intensities. This is due to the fact that, in the presence of the small linear permittivity, one of the multiple electromagnetic slab states exists no matter how small is the transmitted optical intensity. We prove that multiple states at ultra-low optical intensities can be reached only by simultaneously operating on the incident optical intensity and incidence angle. By performing full wave simulations, we prove that the predicted phenomenology is feasible and very robust.
description: 4 pages, 4 figures
Tilted phase space measurements
Creators: name: Lahti, Pekka
name: Schultz, Jussi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the phase shift of π/2 is crucial for the phase space translation covariance of the measured high-amplitude limit observable in eight-port homodyne detection. However, for an arbitrary phase shift θ we construct explicitly a different nonequivalent projective representation of R$^2$ such that the observable is covariant with respect to this representation. As a result we are able to determine the measured observable for an arbitrary parameter field and phase shift. Geometrically the change in the phase shift corresponds to the tilting of one axis in the phase space of the system.
description: 4 pages, 4 figures
Neurothemis tullia subsp. feralis Burm.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Neurothemis
Neurothemis tullia
Neurothemis tullia feralis (burm.)

description: 116. Neurothemis tullia feralis (Burm.) - "Sumatra" (Brauer, Selys).
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 16, DOI: 10.5281/zenodo.3251875
description: {"references": ["Selys Longchamps. E. d e. Odonates de Sumatra, etc. Ann. Mus. civ. Genova, 27, 1889."]}
The super-correlator/super-amplitude duality: Part II
Creators: name: Eden, Burkhard
name: Heslop, Paul
name: Korchemsky, Gregory P.
name: Sokatchev, Emery
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the study of the duality between super-correlators and scattering super-amplitudes in planar N=4 SYM. We provide a number of further examples supporting the conjectured duality relation between these two seemingly different objects. We consider the five- and six-point one-loop NMHV and the six-point tree-level NNMHV amplitudes, obtaining them from the appropriate correlators of strength tensor multiplets in N=4 SYM. In particular, we find exact agreement between the rather non-trivial parity-odd sector of the integrand of the six-point one-loop NMHV amplitude, as obtained from the correlator or from BCFW recursion relations. Together these results lead to the conjecture that the integrands of any N^kMHV amplitude at any loop order in planar N=4 SYM can be described by the correlators of stress-tensor multiplets.
description: 49 pages, 1 figure
Solving eigenvalue problems on curved surfaces using the Closest Point Method
Creators: name: Macdonald, Colin B.
name: Brandman, Jeremy
name: Ruuth, Steven J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N25 (Primary) 65N06 (Secondary)

description: Eigenvalue problems are fundamental to mathematics and science. We present a simple algorithm for determining eigenvalues and eigenfunctions of the Laplace--Beltrami operator on rather general curved surfaces. Our algorithm, which is based on the Closest Point Method, relies on an embedding of the surface in a higher-dimensional space, where standard Cartesian finite difference and interpolation schemes can be easily applied. We show that there is a one-to-one correspondence between a problem defined in the embedding space and the original surface problem. For open surfaces, we present a simple way to impose Dirichlet and Neumann boundary conditions while maintaining second-order accuracy. Convergence studies and a series of examples demonstrate the effectiveness and generality of our approach.
Driven optical lattices as strong-field simulators
Creators: name: Arlinghaus, Stephan
name: Holthaus, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We argue that ultracold atoms in strongly shaken optical lattices can be subjected to conditions similar to those experienced by electrons in laser-irradiated crystalline solids, but without introducing secondary polarization effects. As a consequence one can induce nonperturbative multiphoton-like resonances due to the mutual penetration of ac-Stark-shifted Bloch bands. These phenomena can be detected with a combination of currently available laboratory techniques.
description: 5 pages, 5 figures
Enhanced CMBR non-Gaussianities from Lorentz violation
Creators: name: Chialva, Diego
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effects of Lorentz symmetry violation on the scalar CMBR bispectrum. Our quantitative results show that there can be enhancements in the bispectrum for specific configurations in momentum space, when the modified dispersion relations resulting from the symmetry breaking violate the adiabatic condition for a short period of time in the early Universe. The kind of configurations that are enhanced and the pattern of oscillations in wavenumbers that generically appear in the bispectrum strictly depend on the form of the modified dispersion relation, and therefore on the pattern of Lorentz violation. These effects are found to be distinct from those that appear when modelling very high-energy (transplanckian) physics via modified boundary conditions (modified vacuum). In fact, under certain conditions, the enhancements are even stronger, and possibly open a door to the experimental study of Lorentz violation through these phenomena.
description: 26 pages plus bibliography, 3 figures, added bibliography, corrected typos, minor changes in the text
On the vertical equilibrium of the local Galactic disk and the search for disk dark matter
Creators: name: Sanchez-Salcedo, F. J.
name: Flynn, Chris
name: Hidalgo-Gamez, A. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Estimates of the dynamical surface mass density at the solar Galactocentric distance are commonly derived assuming that the disk is in vertical equilibrium with the Galactic potential. This assumption has recently been called into question, based on the claim that the ratio between the kinetic and the gravitational energy in such solutions is a factor of 3 larger than required if Virial equilibrium is to hold. Here we show that this ratio between energies was overerestimated and that the disk solutions are likely to be in Virial equilibrium after all. We additionally demonstrate, using one-dimensional numerical simulations, that the disks are indeed in equilibrium. Hence, given the uncertainties, we find no reason to cast doubt on the steady-state solutions which are traditionally used to measure the matter density of the disk.
description: 6 pages, 2 figures, accepted for publication in ApJ Letters
How to use re3data to find a suitable repository for your data
Creators: name: Strecker, Dorothea
Publisher: name: Zenodo
Year: 2024
Subjects: research data
repository
Love Data Week 2024

description: Are you looking for a suitable repository for your data? In this presentation we introduce a tool you might find useful: re3data, a global registry specialized on describing research data repositories. Participants will get an overview of the scope of the service as well as the search options offered.
Hard times come again
Creators: name: Hill, Adam Stephen
Publisher: name: University of British Columbia
Year: 2016

description: Hard Times Come Again is a musical composition consisting of seven songs composed for alto voice, baritone voice, two violins, viola, cello, double bass, mandolin, banjo, guitar, and piano. In totality it is approximately thirty minutes in duration, and individual songs range from three to six minutes in duration. The songs take their text from poems constructed by the composer, along with poet Bren Simmers, from oral history of the Great Depression. The musical style of the composition draws on both folk music and classical music influences, with specific sub-genres, such as bluegrass, honky-tonk, and minimalism, also referenced. The written document puts the musical composition into personal and historical context. Aspects of the author's personal musical experience are discussed in the first chapter in relation to both folk music and classical music. A brief discussion of North American folk music as well as classical music that has drawn on folk music influences follows in the second chapter. The third chapter discusses musical traits of the composition including form, text, harmonic language, rhythm, and texture, and the fourth chapter includes a brief aesthetic statement. A program note and a complete musical score of the composition are included as appendices.
Ortiz-Flores et al 2020 Iron overload in functional hyperandrogenism: in a randomized clinical trial, bloodletting does not improve metabolic outcomes. Supplementary Data
Creators: name: Ortiz-Flores, Andrés E.
name: M. Ángeles Martínez-García
name: Nattero-Chávez, Lia
name: Álvarez-Blasco, Francisco
name: Fernández-Durán, Elena
name: Quintero-Tobar, Alejandra
name: Escobar-Morreale, Héctor F.
name: Luque-Ramírez, Manuel
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Supplementary Figure 1. Study diagram.
Supplementary Tables.
Table 1. Clinica characteristics of consecutive patients fulfilling inclusion and exclusion criteria for the randomized clinical trial (n = 57).
Table 2. Adverse events likely related to combined oral contraceptive use.
CONSORT guideline checkist.
Brachythemis contaminata Fabricius 1793
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Brachythemis
Brachythemis contaminata

description: 117. Brachythemis contaminata (F.) - Locally common.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 16, DOI: 10.5281/zenodo.3251875
Charge Fluctuations from the Chiral Magnetic Effect in Nuclear Collisions
Creators: name: Müller, Berndt
name: Schäfer, Andreas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive a nonlocal effective Lagrangian for the chiral magnetic effect. An electric field is generated by winding number fluctuations of the nonabelian gauge field in the presence of a strong magnetic field. We estimate the magnitude of charge asymmetry fluctuations with respect to the reaction plane induced by the chiral magnetic effect in relativistic heavy ion collisions to be less than $10^{-6}$, several orders of magnitude smaller than the signal observed in the STAR experiment.
description: A numerical error in an earlier version of the manuscript is corrected
Trithemis aurora Burm.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Trithemis
Trithemis aurora

description: 118. Trithemis aurora (Burm.) - A common species in Sumatra.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 16, DOI: 10.5281/zenodo.3251875
Holographic superconductor developed in BTZ black hole background with backreactions
Creators: name: Liu, Yunqi
name: Pan, Qiyuan
name: Wang, Bin
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop a holographic superconductor in BTZ black hole background with backreactions. We investigate the influence of the backreaction on the condensation of the scalar hair and the dynamics of perturbation in the background spacetime. When the Breitenlohner-Freedman bound is approached, we argue that only one of two possible operators can reflect the real property of the condensation in the holographic superconductor. This argument is supported by the investigation in dynamics.
description: accepted for publication in Phys.Lett.B
Atmosphere Extinction at the ORM on La Palma: A 20 yr Statistical Database Gathered at the Carlsberg Meridian Telescope
Creators: name: Garcia-Gil, A.
name: Munoz-Tunon, C.
name: Varela, A. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Observatorio del Roque de los Muchachos (ORM), in the Canary Islands (Spain), was one of the candidates to host the future European Extremely Large Telescope (E-ELT) and is the site of the Gran Telescopio Canarias (GTC), the largest optical infrared facility to date. Sky transparency is a key parameter as it defines the quality of the photometry to be acquired in the astronomical observations. We present a study of the atmosphere extinction at the ORM, carried out after analysis of a database spanning more than 20 yr, to our knowledge, the longest and most complete and homogeneous in situ database available for any observatory. It is based on photometric measurements in the V band and r' band (transformed to the V -band extinction coefficient kV) using the Carlsberg Meridian Telescope (CMT). Clear seasonal variations that repeat yearly are observed. The median value of kV is 0.13 mag/airmass; the mean value has a maximum in the summer months (June- September), corresponding to the season with maximum frequency of nights affected by dust or cirrus (~29% in summer, but only ~13% during the rest of the year). Two volcanic eruptions took place during the database baseline, which has enabled the study of the impact of volcanoes on the global atmosphere extinction. For the 5 yr of available information, we have estimated the average monthly weather downtime from the CMT data log, obtaining a result (20.7%) in reasonable agreement with earlier studies. The main conclusion of our study is that there is no significant evidence from the CMT data for any secular changes in kV over the 20 yr database baseline.
description: 13 pages, 9 figures, 6 tables, published at PASP
Trithemis festiva Ramb.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Trithemis
Trithemis festiva

description: 119. Trithemis festiva (Ramb.) - Also common. In the S. Lampoengs I found both species together in several localities.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 16, DOI: 10.5281/zenodo.3251875
Selfishness, fraternity, and other-regarding preference in spatial evolutionary games
Creators: name: Szabo, Gyorgy
name: Szolnoki, Attila
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Spatial evolutionary games are studied with myopic players whose payoff interest, as a personal character, is tuned from selfishness to other-regarding preference via fraternity. The players are located on a square lattice and collect income from symmetric two-person two-strategy (called cooperation and defection) games with their nearest neighbors. During the elementary steps of evolution a randomly chosen player modifies her strategy in order to maximize stochastically her utility function composed from her own and the co-players' income with weight factors $1-Q$ and Q. These models are studied within a wide range of payoff parameters using Monte Carlo simulations for noisy strategy updates and by spatial stability analysis in the low noise limit. For fraternal players ($Q=1/2$) the system evolves into ordered arrangements of strategies in the low noise limit in a way providing optimum payoff for the whole society. Dominance of defectors, representing the "tragedy of the commons", is found within the regions of prisoner's dilemma and stag hunt game for selfish players (Q=0). Due to the symmetry in the effective utility function the system exhibits similar behavior even for Q=1 that can be interpreted as the "lovers' dilemma".
description: 7 two-column pages, 8 figures; accepted for publication in J. Theor. Biol
Ion-Neutral Collisions in the Interstellar Medium: Wave Damping and Elimination of Collisionless Processes
Creators: name: Spangler, Steven R.
name: Savage, Allison H.
name: Redfield, Seth
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Most phases of the interstellar medium contain neutral atoms in addition to ions and electrons. This introduces differences in plasma physics processes in those media relative to the solar corona and the solar wind at a heliocentric distance of 1 astronomical unit. In this paper, we consider two well-diagnosed, partially-ionized interstellar plasmas. The first is the Diffuse Ionized Gas (DIG) which is probably the extensive phase in terms of volume. The second is the gas that makes up the Local Clouds of the Very Local Interstellar Medium (VLISM). Ion-neutral interactions seem to be important in both media. In the DIG, ion-neutral collisions are relatively rare, but sufficiently frequent to damp magnetohydrodynamic (MHD) waves (as well as propagating MHD eddies) within less than a parsec of the site of generation. This result raises interesting questions about the sources of turbulence in the DIG. In the case of the VLISM, the ion-neutral collision frequency is higher than that in the DIG, because the hydrogen is partially neutral rather than fully ionized. We present results showing that prominent features of coronal and solar wind turbulence seem to be absent in VLISM turbulence. For example, ion temperature does not depend on ion mass. This difference may be attributable to ion-neutral collisions, which distribute power from more effectively heated massive ions such as iron to other ion species and neutral atoms.
description: Submitted to American Institute of Physics Conference Proceedings for conference "Partially Ionized Plasmas Throughout the Cosmos", Dastgeer Shaikh, editor
Impact of Socioeconomic Status on Executive Function in an Adolescent Sample
Creators: name: Pak Mortega, Jessica
name: Peverill, Matthew
name: McLaughlin, Katie
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: adolescents
subject: executive function
subject: poverty
subject: socioeconomic status

description: Mani, Mullainathan, Shafir, and Zhao (2013) showed that living in poverty can impede executive functioning in adults. By inducing thoughts of monetary concerns, they reduced performance on a cognitive control task in low-income participants but not high-income participants. They proposed that this effect illustrated a pathway by which poverty could negatively impact cognitive capacity and decision making. This study generated new insights into the effects of poverty on cognitive functioning and provided new direction for policies that affect people living in poverty. Importantly, it is currently unknown whether this phenomenon occurs in youth. If demonstrated, an effect of socioeconomic adversity on cognitive functioning in youth could help explain well established gaps in academic achievement between low- and high-income youth. This is a pre-registration of a study to replicate and extend Mani et al.’s findings in a sample of adolescents in the Pacific Northwest.