cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Boucardicinae Pall-Gergely 2024, subfam. nov.
Creators: name: Páll-Gergely, Barna
name: Ruthensteiner, Bernhard
name: Harl, Josef
name: Magonyi, Nóra M.
name: Asami, Takahiro
name: Krizsik, Virág
name: Schwaha, Tomas
name: Fehér, Zoltán
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Hainesiidae

description: Subfamily Boucardicinae Páll-Gergely subfam. nov.
(Fig. 10)
h t t p: / / z o o b a n k.o r g / 2 6 9 6 4 1 F2 -F C 2 5 -4 1 A E - B C 9 6 - 0632E6931CC3
Tope genus: Boucardicus Fischer-Piete & Bedoucha, 1965.
Content: Anosocolus Fischer-Piete, Ch. P. Blanc, F. Blanc & F. Salvat, 1993 (Fig. 10A), Boucardicus Fischer-Piete & Bedoucha, 1965 (Fig. 10B–D), Malarinia Haas, 1961 (Fig. 10E, F). As a result of a recent intense survey, the number of known Boucardicus species has reached almost 200 species (Emberton and Pearce 1999, Emberton 2002a, Emberton et al. 2010, Balashov and Griffiths 2015). Anosocolus and Malarinia both have two species.
Diagnosis: Sutural tube absent; microtunnels long, formed by folds of the uppermost shell layer, and situated between the peristome and the position of the operculum (= constriction), i.e. anterior to the inner opening; each microtunnel reaches the common opening individually; the single opening is situated immediately behind the operculum. Operculum eccentric.
Distribution: Endemic to Madagascar (Fig. 11).
Remarks: Te shell sculpture of Boucardicus species, especially the rib morphology of the area between the peristome and the position of the operculum, is crucial for species delimitation and recognition. Tus, it was described in detail for each species (Emberton 1994, 2001, 2002a, Emberton and Pearce 1999, Emberton et al. 1999, 2010). However, the function of these ribs (i.e. microtunnels) and the presence of a single opening behind the operculum have not been mentioned in the literature.
description: Published as part of Páll-Gergely, Barna, Ruthensteiner, Bernhard, Harl, Josef, Magonyi, Nóra M., Asami, Takahiro, Krizsik, Virág, Schwaha, Tomas & Fehér, Zoltán, 2024, Recurrent evolution of breathing microtunnel system in terrestrial operculate snails (Gastropoda: Caenogastropoda: Cyclophoroidea), pp. 1-25 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 202 (4) on page 11, DOI: 10.1093/zoolinnean/zlae158, http://zenodo.org/record/14826212
Colura obesa Jovet-Ast 1954
Creators: name: Ah-Peng, Claudine
name: Bardat, Jacques
name: Pócs, Tamás
name: Söderström, Lars
name: Staménoff, Pierre
name: Strasberg, Dominique
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Colura
Colura obesa

description: 17. Colura obesa Jovet-Ast (1954: 273)
 Family:— Lejeuneaceae.
 Distribution:— Madagascar and Réunion.
 Habitat:— Corticolous or ramicolous.
 Threat:— Habitat destruction, the only record is from a kipuka (forest patch surrounded by lava flows).
 IUCN threat category:— CR[B2ab(iii)]
 Specimen:— one locality in Réunion: Saint-Philippe, lava flow, corticolous, 21°16,194' S, 55°47,409' E, 14.06.2005, Ah-Peng, Bardat and Strasberg KIPA11C1R3 (REU).
description: Published as part of Ah-Peng, Claudine, Bardat, Jacques, Pócs, Tamás, Söderström, Lars, Staménoff, Pierre & Strasberg, Dominique, 2012, Red List of liverworts and hornworts for Réunion (Mascarene archipelago), pp. 1-23 in Phytotaxa 68 (1) on page 10, DOI: 10.11646/phytotaxa.68.1.1, http://zenodo.org/record/5066080
Review Jurnal Defnissa Zumara.docx
Creators: name: Defnissa Zumara
Publisher: name: figshare
Year: 2020
Subjects: subject: 150604 Tourism Marketing
subject: FOS: Economics and business
subject: 150601 Impacts of Tourism
subject: 150603 Tourism Management

description: Review JournalUnderstanding Travel Risks In A Development Country : A Bottom Up Approach
The Great Observatories Origins Deep Survey - VLT/FORS2 Spectroscopy in the GOODS-South Field
Creators: name: Vanzella, E.
name: Cristiani, S.
name: Dickinson, M.
name: Kuntschner, H.
name: Moustakas, L. A.
name: Nonino, M.
name: Rosati, P.
name: Stern, D.
name: Cesarsky, C.
name: Ettori, S.
name: Ferguson, H. C.
name: Fosbury, R. A. E.
name: Giavalisco, M.
name: Haase, J.
name: Renzini, A.
name: Rettura, A.
name: Serra, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results of the ESO/GOODS program of spectroscopy of faint galaxies in the Chandra Deep Field South (CDF-S). 399 spectra of 303 unique targets have been obtained in service mode with the FORS2 spectrograph at the ESO/VLT, providing 234 redshift determinations (the median of the redshift distribution is at 1.04). The typical redshift uncertainty is estimated to be sig(z) ~ 0.001. Galaxies have been color selected in a way that the resulting redshift distribution typically spans from z=0.5 to 2. The reduced spectra and the derived redshifts are released to the community through the ESO web page http://www.eso.org/science/goods/ Large scale structure is clearly detected at z ~ 0.67, 0.73, 1.10 and 1.61. Three Lyman-break galaxies have also been included as targets and are confirmed to have redshifts z=4.800, 4.882 and 5.828. In a few cases, we observe clear [OII]3727 rotation curves, even at the relatively low resolution (R = 860) of the present observations. Assuming that the observed velocity structure is due to dynamically-relaxed rotation, this is an indication of large galactic masses (few times 10^(11) solar masses) at z ~ 1.
description: 24 pages, 15 figures. Submitted to A&A, 25 June 2004. Version with full resolution figures available at http://www.eso.org/science/goods/spectroscopy/products.html
Time-local optimal control for parameter estimation in the Gaussian regime
Creators: name: Predko, Alexander
name: Albarelli, Francesco
name: Serafini, Alessio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Information about a classical parameter encoded in a quantum state can only decrease if the state undergoes a non-unitary evolution, arising from the interaction with an environment. However, instantaneous control unitaries may be used to mitigate the decrease of information caused by an open dynamics. A possible, locally optimal (in time) choice for such controls is the one that maximises the time-derivative of the quantum Fisher information (QFI) associated with a parameter encoded in an initial state. In this study, we focus on a single bosonic mode subject to a Markovian, thermal master equation, and determine analytically the optimal time-local control of the QFI for its initial squeezing angle (optical phase) and strength. We show that a single initial control operation is already optimal for such cases and quantitatively investigate situations where the optimal control is applied after the open dynamical evolution has begun.
description: 10 pages, 3 figures, accepted version
Ramanujan's "Lost Notebook" and the Virasoro Algebra
Creators: name: Milas, Antun
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: By using the theory of vertex operator algebras, we gave a new proof of the famous Ramanujan's modulus 5 modular equation from his "Lost Notebook" (p.139 in \cite{R}). Furthermore, we obtained an infinite list of $q$-identities for all odd moduli; thus, we generalized the result of Ramanujan.
description: To appear in Comm. Math. Phys
Very high quality factor measured in annealed fused silica
Creators: name: Ageev, Alexandr
name: Palmer, Belkis Cabrera
name: De Felice, Antonio
name: Penn, Steven D.
name: Saulson, Peter R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the results of quality factor measurements for rod samples made of fused silica. To decrease the dissipation we annealed our samples. The highest quality factor that we observed was $Q=(2.03\pm0.01)\times10^8$ for a mode at 384 Hz. This is the highest published value of $Q$ in fused silica measured to date.
description: 8 pages, 2 figures
Malarinia Haas 1961
Creators: name: Páll-Gergely, Barna
name: Ruthensteiner, Bernhard
name: Harl, Josef
name: Magonyi, Nóra M.
name: Asami, Takahiro
name: Krizsik, Virág
name: Schwaha, Tomas
name: Fehér, Zoltán
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Diplommatinidae
Malarinia

description: Genus Malarinia Haas, 1961
(Fig. 10E, F)
Malarinia Haas, 1961: 19.
Tope species: Malarinia hova Haas, 1961, by original designation.
Included species: Malarinia hova Haas, 1961 (Fig. 10E) and Malarinia calcoperculata Emberton, 1994 (Fig. 10F, see also Emberton & Pearce, 1999: 364, fig. 22).
Remarks: We examined photographs of the type species of Malarinia (Madagascar, ~ 30 miles south of Moramanga, Chutes de la Mort, leg. E.S. Ross, 10 November 1959, FMNH 106701). Te strong sculpture on the last half whorl suggests that each rib represents a microtunnel, as in the genera Boucardicus and Anosocolus. So far, this genus has been placed in the family Diplommatinidae, which has no other known members in Madagascar or in the entire African continent (Egorov 2013). Tus, its position in the Boucardicinae is more likely, and it is here moved to Boucardicinae.
Boucardicus menoi K. C. Emberton, Slapcinsky, C. A. Campbell, Rakotondrazafy, Andriamiarison & J. D. Emberton, 2010 and Boucardicus avo K. C. Emberton, Slapcinsky, C. A. Campbell, Rakotondrazafy, Andriamiarison & J. D. Emberton, 2010 are very similar to two known Malarinia species in shell shape and sculpture (Emberton et al. 2010). It is possible that they are wrongly assigned to Boucardicus and should instead belong to Malarinia. However, it might also mean that there is no clear morphological distinction between Malarinia and Boucardicus. Given that Malarinia is the older name, it has priority over Boucardicus, and the ~200 species of the later genus should be transferred to Malarinia. However, we do not formally synonymize Boucardicus with Malarinia here. Instead, a systematic revision of the extremely variable Boucardicus should propose a reasonable subdivision of that genus.
description: Published as part of Páll-Gergely, Barna, Ruthensteiner, Bernhard, Harl, Josef, Magonyi, Nóra M., Asami, Takahiro, Krizsik, Virág, Schwaha, Tomas & Fehér, Zoltán, 2024, Recurrent evolution of breathing microtunnel system in terrestrial operculate snails (Gastropoda: Caenogastropoda: Cyclophoroidea), pp. 1-25 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 202 (4) on page 14, DOI: 10.1093/zoolinnean/zlae158, http://zenodo.org/record/14826212
Hydrodynamic equations for a U(N) invariant superfluid
Creators: name: Zhang, Yi-Cai
name: Zhang, Shizhong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper, we develop the appropriate set of hydrodynamic equations in a U(N) invariant superfluid that couple the dynamics of superflow and magnetization. In the special case when both the superfluid and normal velocities are zero, the hydrodynamic equations reduce to a generalized version of Landau-Lifshitz equation for ferromagnetism with U(N) symmetry. When both velocities are non-zero, there appears couplings between the superflow and magnetization dynamics, and the superfluid velocity no longer satisfies the irrotational condition. On the other hand, the magnitude of magnetization is no longer a constant of motion as was the case for the standard Landau-Lifshitz theory. In comparison with the simple superfluid, the first sound and second sounds are modified by a non-zero magnetization through various thermodynamic functions. For U(2) invariant superfluid, we get both (zero-) sound wave and a spin wave at zero temperature. It is found that the dispersion of spin wave is always quadratic, which is consistent with detailed microscopic analysis. In the Appendix, we show that the hydrodynamic equation for a U(N) invariant superfluid can be obtained from the general hydrodynamic equation with arbitrary internal symmetries.
Minimisation of Polyak-Łojasewicz Functions Using Random Zeroth-Order Oracles
Creators: name: Farzin, Amir Ali
name: Shames, Iman
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The application of a zeroth-order scheme for minimising Polyak-Łojasewicz (PL) functions is considered. The framework is based on exploiting a random oracle to estimate the function gradient. The convergence of the algorithm to a global minimum in the unconstrained case and to a neighbourhood of the global minimum in the constrained case along with their corresponding complexity bounds are presented. The theoretical results are demonstrated via numerical examples.
Probing Polarized Gluon Distributions through Charmed Hadron Production in Polarized pp Collisions at BNL--RHIC Energy
Creators: name: Morii, Toshiyuki
name: Ohkuma, Kazumasa
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to extract information about behavior of polarized gluons in the nucleon, charmed hadron productions, i.e. D* meson and Lambda_c baryon productions, are studied in polarized pp reactions at BNL-RHIC energy. For these processes, the spin correlation asymmetry D_{LL} between the target proton and the produced charmed hadron, and its statistical sensitivity delta D_{LL} are calculated. From analyses on these processes, we found that the pseudo-rapidity distribution of D_{LL} in the limited transverse momentum region is quite effective for distinguishing the model of polarized gluons as well as the model of spin-dependent fragmentation functions.
description: 1+14 pages, 14 figures, added references and comments, To appear in Int. Journal of Modern Phys. A
Ancilla-assisted quantum process tomography
Creators: name: Altepeter, J. B.
name: Branning, D.
name: Jeffrey, E.
name: Wei, T. C.
name: Kwiat, P. G.
name: Thew, R. T.
name: O'Brien, J. L.
name: Nielsen, M. A.
name: White, A. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have implemented several methods investigating a wide range of processes, e.g., unitary, decohering, and polarizing. One of these methods, ancilla-assisted process tomography (AAPT), makes use of an additional ``ancilla system,'' and we have theoretically determined the conditions when AAPT is possible. All prior schemes for AAPT make use of entangled states. Our results show that, surprisingly, entanglement is not required for AAPT, and we present process tomography data obtained using an input state that has no entanglement. However, the use of entanglement yields superior results.
description: To appear in Physical Review Letters
Anosycolus Fischer-Piete, Ch. P. Blanc, F. Blanc & F. Salvat 1993
Creators: name: Páll-Gergely, Barna
name: Ruthensteiner, Bernhard
name: Harl, Josef
name: Magonyi, Nóra M.
name: Asami, Takahiro
name: Krizsik, Virág
name: Schwaha, Tomas
name: Fehér, Zoltán
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Cyclophoridae
Anosycolus

description: Genus Anosycolus Fischer-Piete, Ch. P. Blanc, F. Blanc & F. Salvat, 1993
(Fig. 10A)
Anosocolus Fischer-Piete, Ch. P. Blanc, F. Blanc & F. Salvat, 1993: 77.
Tope species: Anosocolus anosocolus Fischer-Piete, Ch. P. Blanc, F. Blanc & F. Salvat, 1993 (by original designation).
Remarks: Anosocolus is included in the Boucardicinae, owing to the presence of microtunnels on the last whorl of the type species. Boucardicus, in the present sense, is an extremely variable genus in terms of shell size, shell and aperture shape, and sculpture, and Anosocolus differs from some large, triangular Boucardicus species (e.g. Fig. 10B) only in minor characters, such as the keeled body whorl and closed umbilicus. Tis might suggest that Anosocolus and large-shelled Boucardicus are more closely related to each other than are large, triangular-shelled and small, ovoid Boucardicus species (e.g. Fig. 10D). Clearly, a genus-level revision of Boucardicus is needed in order to provide a phylogenetically meaningful subdivision of this mega-genus.
description: Published as part of Páll-Gergely, Barna, Ruthensteiner, Bernhard, Harl, Josef, Magonyi, Nóra M., Asami, Takahiro, Krizsik, Virág, Schwaha, Tomas & Fehér, Zoltán, 2024, Recurrent evolution of breathing microtunnel system in terrestrial operculate snails (Gastropoda: Caenogastropoda: Cyclophoroidea), pp. 1-25 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 202 (4) on page 14, DOI: 10.1093/zoolinnean/zlae158, http://zenodo.org/record/14826212
Lytton Samsara
Creators: name: Hammill, John Patrick
Publisher: name: The University of British Columbia
Year: 2022

description: Canada sits on a perilous edge amidst outcries of potential exponential environmental disasters. This is not a thesis for fashion, it is a thesis for survival: Lytton Samsara is a response to climate change in 2021. The emergence of Climate Change and its effect on the built environment is the most important issue of the 21st Century and in 2021 British Columbia, saw a substantial increase in environmental disasters. Record breaking heatwaves developed to large wildfires that destroyed large landscapes and small towns. Canadian must look to architecture to preserve British Columbian towns, and livelihoods. We must evaluate the realistic outcomes of forest fires and other environmental disasters by accepting their destructive nature and designing economically innovative structures. Climate change and natural disasters seem to be going hand in hand. This past year British Columbia experienced record-breaking heat and drought which lead to an unparalleled forest fire season. Fire destroyed the town of Lytton BC displacing all its residents and evacuating them hundreds of miles away to other cities with hotel rooms to house them. The unprecedented hot, dry summer was followed by torrential rains and floods that ripped apart essential highways and destroyed towns. The entire town of Merritt was evacuated to the same places where Lytton evacuees were still living. Destruction of small towns in BC is becoming all too commonplace. This calls into question our western values as buildings as permanent structures. The Shinto Shrines at Ise Jingu offer a different ideology on buildings as dynamic and impermanent. I offer here an alternate way to view post-disaster rebuilding and a proposition for bringing people back into the community. This project recognizes the Nlaka’pamux band, the Lytton First Nation is located on 14,161 acres of land divided into 56 reserves. The reserves are located at the site of the Indian Village of Kumsheen.
Hypercomplex manifolds with trivial canonical bundle and their holonomy
Creators: name: Verbitsky, Misha
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let (M,I,J,K) be a compact hypercomplex manifold admitting an HKT-metric. Assume that the canonical bundle of (M,I) is trivial as a holomorphic line bundle. We show that the holonomy of Obata connection on M is contained in SL(n,H). In Appendix we apply these arguments to compact nilmanifolds equipped with abelian hypercomplex structures, showing that such manifolds have holonomy in SL(n,H).
description: 14 pages, minor misprints corrected
MuSCAT2 multicolour validation of TESS candidates: an ultra-short-period substellar object around an M dwarf
Creators: name: Parviainen, H.
name: Palle, E.
name: Zapatero-Osorio, M. R.
name: Rodriguez, P. Montanes
name: Murgas, F.
name: Narita, N.
name: Soto, D. Hidalgo
name: Béjar, V. J. S.
name: Korth, J.
name: Monelli, M.
name: Barris, N. Casasayas
name: Crouzet, N.
name: de Leon, J. P.
name: Fukui, A.
name: Hernandez, A.
name: Klagyivik, P.
name: Kusakabe, N.
name: Luque, R.
name: Mori, M.
name: Nishiumi, T.
name: Prieto-Arranz, J.
name: Tamura, M.
name: Watanabe, N.
name: Burke, C.
name: Charbonneau, D.
name: Collins, K. A.
name: Collins, K. I.
name: Conti, D.
name: Soto, A. Garcia
name: Jenkins, J. S.
name: Jenkins, J. M.
name: Levine, A.
name: Li, J.
name: Rinehart, S.
name: Seager, S.
name: Tenenbaum, P.
name: Ting, E. B.
name: Vanderspek, R.
name: Vezie, M.
name: Winn, J. N
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of TOI 263.01 (TIC 120916706), a transiting substellar object (R = 0.87 RJup) orbiting a faint M3.5~V dwarf (V=18.97) on a 0.56~d orbit. We set out to determine the nature of the TESS planet candidate TOI 263.01 using ground-based multicolour transit photometry. The host star is faint, which makes RV confirmation challenging, but the large transit depth makes the candidate suitable for validation through multicolour photometry. Our analysis combines three transits observed simultaneously in r', i', and z_s bands using the MuSCAT2 multicolour imager, three LCOGT-observed transit light curves in g, r', and i' bands, a TESS light curve from Sector 3, and a low-resolution spectrum for stellar characterisation observed with the ALFOSC spectrograph. We model the light curves with PyTransit using a transit model that includes a physics-based light contamination component that allows us to estimate the contamination from unresolved sources from the multicolour photometry. This allows us to derive the true planet-star radius ratio marginalised over the contamination allowed by the photometry, and, combined with the stellar radius, gives us a reliable estimate of the object's absolute radius. The ground-based photometry excludes contamination from unresolved sources with a significant colour difference to TOI 263. Further, contamination from sources of same stellar type as the host is constrained to levels where the true radius ratio posterior has a median of 0.217. The median radius ratio corresponds to an absolute planet radius of 0.87 RJup, which confirms the substellar nature of the planet candidate. The object is either a giant planet or a brown dwarf (BD) located deep inside the so-called "brown dwarf desert". Both possibilities offer a challenge to current planet/BD formation models and makes 263.01 an object deserving of in-depth follow-up studies.
description: Accepted to A&A
Low-field diffusion magneto-thermopower of a high mobility two-dimensional electron gas
Creators: name: Maximov, S.
name: Gbordzoe, M.
name: Buhmann, H.
name: Molenkamp, L. W.
name: Reuter, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low magnetic field diffusion thermopower of a high mobility GaAs-heterostructure has been measured directly on an electrostatically defined micron-scale Hall-bar structure at low temperature (T = 1.6 K) in the low magnetic field regime (B < 1.2 T) where delocalized quantum Hall states do not influence the measurements. The sample design allowed the determination of the field dependence of the thermopower both parallel and perpendicular to the temperature gradient, denoted respectively by Sxx (longitudinal thermopower) and Syx (Nernst-Ettinghausen coefficient). The experimental data show clear oscillations in Sxx and Syx due to the formation of Landau levels for 0.3 T < B < 1.2 T and reveal that Syx is approximately 120 times larger than Sxx at a magnetic field of 1 T, which agrees well with the theoretical prediction.
description: 4 pages, 4 figures
Comment on "The negative flow of probability"
Creators: name: Goussev, Arseni
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The left-to-right motion of a free quantum Gaussian wave packet can be accompanied by the right-to-left flow of the probability density, the effect recently studied by Villanueva [Am. J. Phys. 88, 325 (2020)]. Using the Wigner representation of the wave packet, we analyze the effect in phase space, and demonstrate that its physical origin is rooted in classical mechanics.
description: 6 pages, 5 figures
An End-to-end Deep Learning Approach for Landmark Detection and Matching in Medical Images
Creators: name: Grewal, Monika
name: Deist, Timo M.
name: Wiersma, Jan
name: Bosman, Peter A. N.
name: Alderliesten, Tanja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Anatomical landmark correspondences in medical images can provide additional guidance information for the alignment of two images, which, in turn, is crucial for many medical applications. However, manual landmark annotation is labor-intensive. Therefore, we propose an end-to-end deep learning approach to automatically detect landmark correspondences in pairs of two-dimensional (2D) images. Our approach consists of a Siamese neural network, which is trained to identify salient locations in images as landmarks and predict matching probabilities for landmark pairs from two different images. We trained our approach on 2D transverse slices from 168 lower abdominal Computed Tomography (CT) scans. We tested the approach on 22,206 pairs of 2D slices with varying levels of intensity, affine, and elastic transformations. The proposed approach finds an average of 639, 466, and 370 landmark matches per image pair for intensity, affine, and elastic transformations, respectively, with spatial matching errors of at most 1 mm. Further, more than 99% of the landmark pairs are within a spatial matching error of 2 mm, 4 mm, and 8 mm for image pairs with intensity, affine, and elastic transformations, respectively. To investigate the utility of our developed approach in a clinical setting, we also tested our approach on pairs of transverse slices selected from follow-up CT scans of three patients. Visual inspection of the results revealed landmark matches in both bony anatomical regions as well as in soft tissues lacking prominent intensity gradients.
description: SPIE Medical Imaging Conference - 2020
Data Publishing and Metadata creation
Creators: name: Quitzsch, Nicole
Publisher: name: Zenodo
Year: 2012

description: The classic form of dissemination of scientific data is to publish only the results of data collection. Their results are published in professional journals, usually without the underlying data. Data should no longer be exclusively part of a scientific publication. This is why the GESIS - Leibniz-Institute for the Social Sciences and the ZBW - Leibniz Information Centre for Economics decided to implement the DOI registration portal for German social and economic data - da|ra. The datasets receive unique DOIs as citable identifiers and all relevant metadata information. Persistent identifiers together with their bibliographical information provide the opportunity to find and to cite primary data in scientific publications. The data is clearly quotable about the DOI. Pre-condition for the citation of data is the creation of qualitative metadata. The da|ra metadata schema consists of mandatory and optional fields. It is compliant with other important metadata standards to ensure metadata interoperability. This presentation will deal with the different steps need to be done for the data publishing process and focus on how new features are included in the already existing DOI service. It will show that using the services enables scientists comfortably to discover, find and access scientific data.
Quantum Many-Body Scarring in a Non-Abelian Lattice Gauge Theory
Creators: name: Calajò, Giuseppe
name: Cataldi, Giovanni
name: Rigobello, Marco
name: Wanisch, Darvin
name: Magnifico, Giuseppe
name: Silvi, Pietro
name: Montangero, Simone
name: Halimeh, Jad C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum many-body scarring (QMBS) is an intriguing mechanism of weak ergodicity breaking that has recently spurred significant attention. Particularly prominent in Abelian lattice gauge theories (LGTs), an open question is whether QMBS nontrivially arises in non-Abelian LGTs. Here, we present evidence of robust QMBS in a non-Abelian SU(2) LGT with dynamical matter. Starting in product states that require little experimental overhead, we show that prominent QMBS arises for certain quenches, facilitated through meson and baryon-antibaryon excitations, highlighting its non-Abelian nature. The uncovered scarred dynamics manifests as long-lived coherent oscillations in experimentally accessible local observables as well as prominent revivals in the state fidelity. Our findings bring QMBS to the realm of non-Abelian LGTs, highlighting the intimate connection between scarring and gauge symmetry, and are amenable for observation in a recently proposed trapped-ion qudit quantum computer.
description: 13 pages, 9 figures
Continuous matrix product operator approach to finite temperature quantum states
Creators: name: Tang, Wei
name: Tu, Hong-Hao
name: Wang, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present an algorithm for studying quantum systems at finite temperature using continuous matrix product operator representation. The approach handles both short-range and long-range interactions in the thermodynamic limit without incurring any time discretization error. Moreover, the approach provides direct access to physical observables including the specific heat, local susceptibility, and local spectral functions. After verifying the method using the prototypical quantum XXZ chains, we apply it to quantum Ising models with power-law decaying interactions and on the infinite cylinder, respectively. The approach offers predictions that are relevant to experiments in quantum simulators and the nuclear magnetic resonance spin-lattice relaxation rate.
description: 4.5+6 pages, 3+6 figures, published version, code: https://github.com/TensorBFS/cMPO
The "dynamical clock": dating the internal dynamical evolution of star clusters with Blue Straggler Stars
Creators: name: Ferraro, F. R.
name: Lanzoni, B.
name: Dalessandro, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We discuss the observational properties of a special class of objects (the so-called "Blue Straggler Stars", BSSs) in the framework of using this stellar population as probe of the dynamical processes occurring in high-density stellar systems. Indeed, the shape of the BSS radial distribution and their level of central concentration are powerful tracers of the stage of dynamical evolution reached by the host cluster since formation. Hence, they can be used as empirical chronometers able to measure the dynamical age of stellar systems. In addition, the presence of a double BSS sequence in the color-magnitude diagram is likely the signature of the most extreme dynamical process occurring in globular cluster life: the core collapse event. Such a feature can therefore be used to reveal the occurrence of this process and, for the first time, even date it.
description: 15 pages, 12 figures, in press on Rendiconti Lincei, Scienze Fisiche e Naturali
Sensitive Data: Organisational Aspects of confidentiality protection and Privacy Concerns
Creators: name: Afkhami, Reza
Publisher: name: Zenodo
Year: 2012

description: The purpose of this study is to extend the legacy threat-vulnerability model to incorporate human and social factors. This is achieved by presenting the dynamics of threats and vulnerabilities in the human and social context. We examine costs and benefits as they relate to threats, exploits, vulnerabilities, defence measures, incidents, and recovery and restoration. We discuss privacy concerns and the implications of implementing employee surveillance technologies and we suggest a framework of fair practices which can be used for bridging the gap between the need to provide adequate protection for information systems, while preserving employees' rights to privacy. Organizations have to prioritize the security of their computer systems in order to ensure that their information assets retain their accuracy, confidentiality, and availability. While the importance of the information security policy in ensuring the security of information is acknowledged widely, there has been little empirical analysis of its impact or effectiveness in this role.
Determination of the angle gamma using multibody D decays in B^+- -> D K^+-
Creators: name: Giri, Anjan
name: Grossman, Yuval
name: Soffer, Abner
name: Zupan, Jure
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe a method for determining gamma using B^+- -> D K^+- decays followed by a multibody D decay. In the talk we focus on K_S pi^- pi^+ final state, but other modes such as D -> K_S K^- K^+ and D -> K_S pi^- pi^+ pi^0 can also be used. The main advantages of the method are that it uses only Cabibbo allowed D decays, and that large strong phases are expected due to the presence of resonances. Since no knowledge about the resonance structure is needed, gamma can be extracted without any hadronic uncertainty.
description: Invited talk by J. Zupan at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052). 4 pages LaTeX, 3 eps figures
Election Studies: A Research Data Management Challenge
Creators: name: Horton, Laurence
name: Katsanidou, Alexia
Publisher: name: Zenodo
Year: 2012

description: Election studies present a research data management challenge due to the size and diversity of the data they collect in a concentrated period. We consider how data infrastructure can support election studies to ensure the data they produce is good quality reusable comparative data. Election studies are critical large-scale data investments. When fully realised, election studies provide an unparalleled spatial and temporal resource for studying social attitudes and political behaviour. They have contemporary value for researchers but also as long-term data investments with prospective comparison across time and in comparative cross-national analyses. However, election studies operate under circumstances exceptional to other long-term longitudinal or repeated cross-sectional studies. Elections may occur at irregular intervals or as sudden 'snap' elections. Consequently, studies may have a concentrated period to design and collect data. Here the risk is that data management concerns are relegated to irrelevant or secondary consideration under the pressure to produce publications, with the result that data is not comparable across either time or spatial units. We seek to ensure election studies produce well-documented data, collected in compliance to recognised data harmonisation standards by ensuring data management planning and metadata are incorporated and implemented in the design and execution of the research.
Smaller Circuits for Arbitrary n-qubit Diagonal Computations
Creators: name: Bullock, Stephen S.
name: Markov, Igor L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A unitary operator U=\sum u_{j,k} |k> ; 0 <= j <= 2^n-1}. These relative phases are often required in applications. Constructing quantum circuits for diagonal computations using standard techniques requires either O(n^2 2^n) controlled-not gates and one-qubit Bloch sphere rotations or else O (n 2^n) such gates and a work qubit. This work provides a recursive, constructive procedure which inputs the matrix coefficients of U and outputs such a diagram containing 2^{n+1}-3 alternating controlled-not gates and one-qubit z-axis Bloch sphere rotations. Up to a factor of two, these circuits are the smallest possible. Moreover, should the computation U be a tensor of diagonal one-qubit computations of the form R_z(α)=e^{-i α/2}|0><0|+ e^{i α/2} |1><1|, then a cancellation of controlled-not gates reduces our circuit to that of an n-qubit tensor.
description: v3 improves the results in v1 and achieves asymptotically optimal gate counts v4 makes dimension counting argument rigorous
Drepanolejeunea helenae Pocs 1997
Creators: name: Ah-Peng, Claudine
name: Bardat, Jacques
name: Pócs, Tamás
name: Söderström, Lars
name: Staménoff, Pierre
name: Strasberg, Dominique
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Drepanolejeunea
Drepanolejeunea helenae

description: 19. Drepanolejeunea helenae Pócs (1997: 198)
 Family:— Lejeuneaceae.
 Distribution:— Endemic.
 Habitat:— On Psidium cattleyanum trunk, known only from two localities, the type and a paratype specimen.
 Threat:— Habitat destruction is the major threat as it is a very restricted endemic.
 IUCN threat category:— CR[B2ab(iii)]
 Specimens:— Two localities from Réunion: Basse Vallée, along trail GR2 (Saint-Philippe), on Psidium cattleyanum bush, 16.07.1996, 21°3’ S, 55°32,5 E, Kis & Vojtkó 9651CC (EGR); Pócs 9651DH (EGR, G, JE, PC, REU, MO, NY); le Grand Etang, W of Ste Anne, epiphyllous in remnants of tropical rainforest in the valley, 500-550 m, 21°5’ S, 55°39’ E, A. Vojtkó 9433/AN (microslide, EGR, Pócs 1997:203).
description: Published as part of Ah-Peng, Claudine, Bardat, Jacques, Pócs, Tamás, Söderström, Lars, Staménoff, Pierre & Strasberg, Dominique, 2012, Red List of liverworts and hornworts for Réunion (Mascarene archipelago), pp. 1-23 in Phytotaxa 68 (1) on page 11, DOI: 10.11646/phytotaxa.68.1.1, http://zenodo.org/record/5066080
Chinatown Collective : Conversations between the intangible and tangible heritage of Vancouver’s Chinatown
Creators: name: Lo, Cecilia Hiu Tung
Publisher: name: The University of British Columbia
Year: 2022

description: This thesis seeks to represent the relationships between culture, heritage and identity. As a first generation Chinese-Canadian settler immigrant, I look to investigate the forces of the built environment that has shaped my personal identity and the forces that are shaping others perception of my identity. I situate my investigation in the context of North American Chinatowns, one of the most glaring examples of a Chinese-Canadian space. It is through storytelling that I explore how heritage can be spatialized and how its representation reframes culture and identity. Heritage has become a commodity through heritage conservation methods and regulation. Naturally changing spaces have been forced into stagnation because of competing pressures of nationalism and consumerism. They’ve become representations of an ideal that is imposed on by designers, politicians, and government. I argue that heritage is not an asset to be protected and conserved. Heritage must be sustained and defined by the everyday lived experiences of people in order to result in the creation of resilient cultural spaces. Through storytelling, I speculate on the narratives of these people and ask the question: What do these places become when they are created, designed, and inhabited by the community living there? Where do designers stand in this process of identity building and placemaking?
Complementary properties of multiphoton quantum states in linear optics networks
Creators: name: Wu, Jun-Yi
name: Murao, Mio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have developed a theory for accessing quantum coherences in mutually unbiased bases associated with generalized Pauli operators in multiphoton multimode linear optics networks (LONs). We show a way to construct complementary Pauli measurements in multiphoton LONs and establish a theory for evaluation of their photonic measurement statistics without dealing with the computational complexity of Boson samplings. This theory extends characterization of complementary properties in single-photon LONs to multiphoton LONs employing convex-roof extension. It allows us to detect quantum properties such as entanglement using complementary Pauli measurements, which reveals the physical significance of entanglement between modes in bipartite multiphoton LONs.
description: 25 pages + list of notations and acronyms + references; 10 figures; published version
Teilprojekt 3 - Erhebung und Analyse von Publikationskosten an österreichischen Universitäten
Creators: name: Kaier, Christian
name: Stummvoll, Melanie
Publisher: name: Zenodo
Year: 2024

description: The Austrian Transition to Open Access 2 (AT2OA2) project supports different aspects of the Open Access-transformation process. Subproject 3 aims to improve the publication cost management practices at Austrian universities and research institutions.  This poster summarizes the findings of the four year project phase and was first presented at the AT2OA2 closing event on October 09th, 2024.
Status of three-neutrino oscillations after the SNO-salt data
Creators: name: Maltoni, M.
name: Schwetz, T.
name: Tortola, M. A.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a global analysis of neutrino oscillation data in the framework of three neutrinos, including the recent improved measurement of the neutral current events at SNO. In addition to all current solar neutrino data we take into account the reactor neutrino data from KamLAND and CHOOZ, the atmospheric neutrino data from Super-Kamiokande and MACRO, as well as the first spectral data from the K2K long baseline accelerator experiment. The up-to-date best fit values and allowed ranges of the three-flavour oscillation parameters are determined from these data. Furthermore, we discuss in detail the status of the small parameters alpha = Delta_m^2_Sol / Delta_m^2_Atm and sin^2(theta_13), which fix the possible strength of CP violating effects in neutrino oscillations.
description: 16 pages, LaTeX file using RevTEX4, 10 figures and 1 table included. The conclusions reached in version 1 regarding the restriction on sin^2(theta_13) are now corrected, the solar bound is weaker than that from reactors even after the inclusion of the SNO salt data. In addition the full data set has now been reanalized using the pull method instead of the standard chi-square approach. A few references have also been added
REVIEW JOURNAL 2.pdf
Creators: name: Dwi Sesri Andini
Publisher: name: figshare
Year: 2020
Subjects: subject: 150402 Hospitality Management
subject: FOS: Economics and business

description: penelitian ini bertujuan untuk mengeksplorasi risiko perjalanan wisatawan domestik di destinasi yang benar-benar mengalami bencana alam di salah satu negara paling rawan bencana di dunia, Indonesia. Dengan mengambil pendekatan bottom-up, ini memberikan pemahaman yang lebih baik tentang dimensi yang mendasari persepsi risiko dan membantu memberikan panduan untuk penelitian masa depan.
DDI Lifecycle and Qualitative Data: Development of a Formal Model
Creators: name: Arofan Gregory
name: Wackerow, Joachim
Publisher: name: Zenodo
Year: 2012

description: In December of 2011 the DDI Qualitative Working group began the formalization of a model describing qualitative studies and mixed-method studies, to complement the existing DDI - Lifecycle model describing quantitative studies. From a large number of collected use cases, it was determined that a very general model would be needed. While not yet in final form, this model borrows from several existing sources such as QuDEX and TEI, and aims to support the description of CAQDAS-documented multi-media data, text analysis, and more traditional interviews, texts, video, audio, and image collections. It will support collections and sub-collections, annotations and coding at the level of the files, and also within files of different types. Further, it will provide a rich toolset for linking between and among qualitative and quantitative data objects. The end result of this work will serve as the basis for the enhancement of DDI - Lifecycle in a future release.
Thermal conductivity of porous polycrystalline PbTe
Creators: name: Troncoso, Javier F.
name: Chudzinski, Piotr
name: Todorov, Tchavdar N.
name: Aguado-Puente, Pablo
name: Grüning, Myrta
name: Kohanoff, Jorge J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: PbTe is a leading thermoelectric material at intermediate temperatures, largely thanks to its low lattice thermal conductivity. However, its efficiency is too low to compete with other forms of power generation. This efficiency can be effectively enhanced by designing nanostructures capable of scattering phonons over a wide range of length scales to reduce the lattice thermal conductivity. The presence of grain boundaries can reduce the thermal conductivity to $\sim 0.5$ Wm$^{-1}$K$^{-1}$ for small vacancy concentrations and grain sizes. However, grains anneal at finite temperature, and equilibrium and metastable grain size distributions determine the extent of the reduction in thermal conductivity. In the present work, we propose a phase-field model informed by molecular dynamics simulations to study the annealing process in PbTe and how it is affected by the presence of grain boundaries and voids. We find that the thermal conductivity of PbTe is reduced by up to 35\% in the porous material at low temperatures. We observe that a phase transition at a finite density of voids governs the kinetics of impeding grain growth by Zener pinning.