cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conservation of the circulation for the Euler and Euler-Leray equations
Creators: name: Ginibre, Jean
name: Berre, Martine Le
name: Pomeau, Yves
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is well-known that the circulation of the velocity field of a fluid along a closed material curve is conserved for any solution of the Euler equation. We offer a slightly more explicit proof of that fact than that generally found in the literature. We then rewrite that property in terms of the rescaled variables and functions leading to the Euler-Leray equations and appropriate for studying self-similar solutions. We finally discuss the implications of the conservation of circulation on the existence of such solutions.
Identification of the water-gap in Albizia julibrissim (Fabaceae: Mimosoideae) following wet and dry heat
Creators: name: Yashu Yang
name: Jaganathan, Ganesh K.
name: Biddick, Matthew
name: Jiajin Li
name: Baolin Liu
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Although physical dormancy (PY) has been noted in Albizia julibrissim Durazz. seeds, the conditions that facilitate dormancy break, remain poorly understood. In the present study, we asked (1) what conditions are required to break dormancy and (2) whether these structures differ between dormancy-breaking methods. Imbibition tests demonstrated that the seed coat is impermeable to water, confirming that seeds exhibit PY. Seeds dipped in hot water for 30 sec broke dormancy by forming circular lid-like opening at the lens (i.e. water-gap Type-II) and germinated readily (over 90% in both light and darkness). However, seeds subjected to dry heat treatments of 80, 100 and 150 °C for 1 and 5 min revealed that temperature and treatment duration are key determinants of dormancy break. Seeds that experienced lower temperatures for a short duration remained dormant, whereas seeds exposed to higher temperature for longer durations were entirely inviable. Unlike wet heat treatment, dry heat pulled the lens cells apart, resulting in a non-circular, lid-like opening, a form of the lens opening not yet documented in Mimosoideae.
Simultaneous Perfect Bending and Polarization Rotation of Electromagnetic Wavefront using Chiral Gradient Metasurfaces
Creators: name: Kazemi, Hamidreza
name: Albooyeh, Mohammad
name: Capolino, Filippo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce chiral gradient metasurfaces that allow perfect transmission of all the incident wave into a desired direction and simultaneous perfect rotation of the polarization of the refracted wave with respect to the incident one. Besides using gradient polarization densities which provide bending of the refracted wave with respect to the incident one, using metasurface inclusions that are chiral allows the polarization of the refracted wave to be rotated. We suggest a possible realization of the proposed device by discretizing the required equivalent surface polarization densities realized by proper helical inclusions at each discretization point. By only using a single optically thin layer of chiral inclusions, we are able to unprecedentedly deflect a normal incident plane wave to a refracted plane wave at $45^{\circ}$ with $72\%$ power efficiency which is accompanied by a $90^{\circ}$ polarization rotation. The proposed concepts and design method may find practical applications in polarization rotation devices at microwaves as well as in optics, especially when the incident power is required to be deflected.
description: 9 pages, 7 figures
Additional file 2 of Liver failure as the initial presentation in cancer of unknown primary: a case report
Creators: name: Qin, Lisha
name: Tian, Shan
name: Yang, Lian
name: Fan, Jun
name: Zhang, Jianchu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Virology

description: Supplementary Material 2
Stomopteryx detersella
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Stomopteryx
Stomopteryx detersella

description: Stomopteryx detersella (ZELLER, 1847)
F i r s t r e c o r d. REBEL (1916: 160) from Mallaes.
E x a m i n e d m a t e r i a l. 2♀♀, Mt. Ida, Goniai, 700 m, 24.vii.1994, leg. Baldizzone (BALD, ZMUC); 13, 15 km SW Rethymnon, Agriroupoli, 200 m, 25-29.vi.2000, leg. Fibiger et al. (ZMUC); 13, Kallergi Mts. 1450-1550 m, 28-30.vii.2001, leg. Fibiger et al. (ZMUC); 233, Omalos, 1100-1200 m, 28.vii.-2.viii.2001, leg. Fibiger et al. (ZMUC); 13, near Omalos village, 1200-1400m, 17.v.2002, leg. Nupponen (NUPP); 13, Agia Galini, 30 m, 14.vi.1997, leg. Ruckdeschel (TLMF); 13, Agia Galini, ca. 200 m, 3.vii.2010, leg. Ruckdeschel (TLMF); 13, ditto, but 11.vi.2010 (TLMF); 233, Lasithi plain, Mesa Lasithi, 850 m, 12.vii.2010, leg. Ruckdeschel (TLMF); 233, 2♀♀, ditto, but 13.vii.2010 (TLMF).
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on pages 161-162, DOI: 10.5281/zenodo.5356591
Effects of publication bias on conservation planning
Creators: name: Hickisch, Raffael
name: Hodgetts, Timothy
name: Johnson, Paul J.
name: Sillero, Claudio
name: Tockner, Klement
name: Macdonald, David W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Conservation planning needs reliable information on spatial patterns of biodiversity. However, existing data sets are skewed: some habitats, taxa, and locations are under-represented. Here, we map geographic publication density at the sub-national scale of individual 'provinces'. We query the Web of Science catalogues SCI and SSCI for biodiversity-related publications including country and province names (for the period 1993-2016). We combine these data with other provincial-scale factors hypothesised to affect research (i.e. economic development, human presence, infrastructure and remoteness). We show that sites that appear to be understudied, compared with the biodiversity expected from their bioclimatic conditions, are likely to have been inaccessible to researchers for a diversity of reasons amongst which current or recent armed conflicts are notable. Finally, we create a priority list of provinces where geographic publication bias is of most concern, and discuss how our provincial-scale model can assist in adjusting for publication biases in conservation planning.
description: 10 pages; 3 figures; 1 table;R code on https://github.com/raffael-hickisch; data at https://zenodo.org/record/998889; interactive at http://bit.ly/publication_density_map
Oestranthrax brunnescens Loew 1857
Creators: name: Arabyat, Sahar
name: Katbeh-Bader, Ahmad
name: Greathead, David
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Oestranthrax
Oestranthrax brunnescens

description: Oestranthrax brunnescens (Loew, 1857)
Material: One specimen: Dana, Wadi An Nawatif 27.IX.2002 (1Ψ). Distribution: Palaearctic: Egypt, Kyrgyz Republic, Palestine, Syria, Tajikistan, Turkmenistan, Uzbekistan.
This species seems to be rare in Jordan.
description: Published as part of Arabyat, Sahar, Katbeh-Bader, Ahmad & Greathead, David, 2004, The bee flies (Diptera: Bombyliidae) of Jordan, pp. 1-48 in Zootaxa 654 on page 36, DOI: 10.5281/zenodo.158701
VALUING ACCESS TO MULTIPLE WATER SUPPLY SOURCES IN IRRIGATED AGRICULTURE WITH A HEDONIC PRICING MODEL
Creators: name: Mukherjee, Monobina
name: Schwabe, Kurt A.
name: Mukherjee, Monobina
name: Schwabe, Kurt A.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Non-market Valuation
subject: Hedonics
subject: Multiple Water Supply Sources
subject: Water Districts
subject: Groundwater
subject: Spatial Econometrics

description: Increasing aridity, more frequent and intense drought, and greater degrees of water scarcity create unique challenges for agriculture. In response to these challenges, which often manifest themselves in the form of lower and more variable surface water supplies as well as depleted and degraded ground water supplies, growers are apt to seek out opportunities to adapt. One option confronting growers to reduce their exposure to water scarcity and heightened uncertainty is to diversify. Indeed, having access to a portfolio of supplies is one way in which water and irrigation districts as well as individual growers are responding to the changing landscape of water resource availability. The objective of this paper is to evaluate the benefits to irrigated agriculture from having access to multiple water supply sources, i.e., a water portfolio. With farm-level information on approximately 2000 agricultural parcels across California, we use the hedonic property value method to investigate the extent growers’ benefit from having access to multiple sources of water (i.e., a water portfolio). Our results suggest that while lower quality waters, less reliable water, and less water all negatively impact agricultural land values, holding a water portfolio has a positive impact on land values through its role in mitigating the negative aspects of these factors and reducing the sensitivity of agriculture to climate-related factors. From a policy perspective, such results identify a valuable adaptation tool that water and irrigation districts may consider to help offset the negative impacts of climate change, drought, and population increases on water supply availability and reliability.
Temperature dependence and anisotropy of the bulk upper critical field H_c2 of MgB_2
Creators: name: Sologubenko, A. V.
name: Jun, J.
name: Kazakov, S. M.
name: Karpinski, J.
name: Ott, H. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The bulk upper critical field H_{c2}(T) of superconducting MgB_2 and its anisotropy are established by analyzing experimental data on the temperature and magnetic field dependences of the ab-plane thermal conductivity of a single-crystalline sample in external magnetic fields oriented both parallel (H_{c2}^c) and perpendicular (H_{c2}^{ab}) to the c axis of the hexagonal lattice. From numerical fits we deduce the anisotropy ratio γ_0 = H_{c2}^{ab}(0) / H_{c2}^c(0)=4.2 at T=0 K. Both the values and the temperature dependences of H_{c2}^c and H_{c2}^{ab} are distinctly different from previous claims based on measurements of the electrical resistivity.
description: 4 pages, 4 figures
NICER Observations of the 2018 Outburst of XTE J1810-197
Creators: name: Guver, Tolga
name: Gogus, Ersin
name: Vurgun, Eda
name: Enoto, Teruaki
name: Gendreau, Keith C.
name: Sakamoto, Takanori
name: Gotthelf, Eric V.
name: Arzoumanian, Zaven
name: Guillot, Sebastien
name: Jaisawal, Gaurava K.
name: Malacaria, Christian
name: Majid, Walid A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the earliest available soft X-ray observations of XTE J1810-187, the prototypical transient magnetar, obtained 75--84 days after its 2018 outburst with the Neutron Star Interior Composition Explorer (NICER). Using a series of observations covering eight days we find that its decreasing X-ray flux is well-described by either a blackbody plus power-law or a two-blackbody spectral model. The 2-10 keV flux of the source varied from (1.206+/-0.007)x10^{-10} to (1.125+/-0.004)x10^{-10} erg s^{-1} cm^{-2}, a decrease of about 7% within our observations and 44% from that measured 7-14 days after the outburst with NuSTAR. We confirm that the pulsed fraction and spin pulse phase of the neutron star are energy dependent up to at least 8 keV. Phase resolved spectroscopy of the pulsar suggests magnetospheric variations relative to the line of sight.
description: Accepted for publication in the Astrophysical Journal Letters
Quantum, Nonlocal Aberration Cancellation
Creators: name: Black, A. Nicholas
name: Giese, Enno
name: Braverman, Boris
name: Zollo, Nicholas
name: Barnett, Stephen M.
name: Boyd, Robert W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Phase distortions, or aberrations, can negatively influence the performance of an optical imaging system. Through the use of position-momentum entangled photons, we nonlocally correct for aberrations in one photon's optical path by intentionally introducing the complementary aberrations in the optical path of the other photon. In particular, we demonstrate the simultaneous nonlocal cancellation of aberrations that are of both even and odd order in the photons' transverse degrees of freedom. We also demonstrate a potential application of this technique by nonlocally cancelling the effect of defocus in a quantum imaging experiment and thereby recover the original spatial resolution.
description: 6 pages, 4 figures
Anaplecta pallida Bolivar 1881
Creators: name: VIDLIČKA, ĽUBOMÍR
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Ectobiidae
Anaplecta
Anaplecta pallida

description: Anaplecta pallida Bolivar, 1881
 Distribution: Ecuador.
 Comments to faunistic records in Ecuador:
Bolivar (1881:463): Palmal (leg. Stolzmann).
Kirby (1904:67): Ecuador.
Shelford (1907a:10): Ecuador.
Campos (1923:5 and 1926:45): the same locality as mentioned by Bolivar (1881).
Princis (1965:369): Ecuador.
description: Published as part of VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, pp. 401-445 in Zootaxa 3599 (5) on page 417, DOI: 10.11646/zootaxa.3599.5.1, http://zenodo.org/record/10096900
Stomopteryx basalis
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Stomopteryx
Stomopteryx basalis

description: Stomopteryx basalis (STAUDINGER, 1876)
F i r s t r e c o r d. KARSHOLT (2004 -2011) without details. GOZMÁNY (2012: 341) from Knosos (leg. Reisser).
E x a m i n e d m a t e r i a l. 233, Mt. Ida, Goniai, 700 m, 24.vii.1994, leg. Baldizzone (BALD, ZMUC); 233, 4 km S. Topolia, 28.vii.-1.viii. 2001, 350 m, leg. Fibiger et al. (ZMUC); 1♀, Kolimbaria, Agios Stephanos, c 1. 120 m, 3.viii.2006, leg. Ruckdeschel (TLMF); 1♀, Kissou Kampos, 460 m, 12.viii.2006, leg. Ruckdeschel (TLMF).
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on page 162, DOI: 10.5281/zenodo.5356591
Retiree Migration: Considerations of Amenity and Health Access Drivers
Creators: name: Karner, Anne M.
name: Dorfman, Jeffrey H.
name: Karner, Anne M.
name: Dorfman, Jeffrey H.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Environmental Economics and Policy
subject: Health Economics and Policy
subject: health care access
subject: migration
subject: natural amenities
subject: retirees

description: After a lifetime of working and saving, retirement is a time that an individual can participate in aspirations and activities that were difficult to explore under the constraints of family rearing and full time employment. This newfound freedom allows one to act on her true preferences and alter her lifestyle. One such example is in location decisions. When examining the drivers of migration for retirees versus people still in the work force, one finds that the drivers for the two groups are not synonymous. For those in the labor force, the weight of locational attributes in decision making can be second best to employment opportunities. However, incomes of retirees are often invariant of their location decisions, and their migration decisions are decoupled from job market conditions. Retirees can indulge in specific tastes and preferences such as a preference for natural amenities or access to health care services. This paper examines the question of which attribute is more important when a retiree migrant is deciding between easy medical access versus possibly secluded natural amenities. Retirees appear to consider both attributes, with natural amenities appearing more important drivers of migration decisions.
Oestranthrax
Creators: name: Arabyat, Sahar
name: Katbeh-Bader, Ahmad
name: Greathead, David
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Oestranthrax

description: Oestranthrax sp. near pallifrons Bezzi, 1926
Material: One specimen: Al Mafraq 10.V.1995 (1ɗ).
Distribution: Palaearctic: Libya, Spain.
The collected male specimen fits the female description of this species, but it does not have brown infuscation at the costal cell. This specimen may be the undescribed male of this species.
description: Published as part of Arabyat, Sahar, Katbeh-Bader, Ahmad & Greathead, David, 2004, The bee flies (Diptera: Bombyliidae) of Jordan, pp. 1-48 in Zootaxa 654 on page 36, DOI: 10.5281/zenodo.158701
Additional file 5 of Secretome characterization of clinical isolates from the Mycobacterium abscessus complex provides insight into antigenic differences
Creators: name: Cornejo-Granados, Fernanda
name: Kohl, Thomas A.
name: Sotomayor, Flor Vásquez
name: Andres, Sönke
name: Hernández-Pando, Rogelio
name: Hurtado-Ramirez, Juan Manuel
name: Utpatel, Christian
name: Niemann, Stefan
name: Maurer, Florian P.
name: Ochoa-Leyva, Adrian
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 5: Table S4. AAR values for random constructed secretomes of the rough and smooth phenotypes.
Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometry
Creators: name: Lanza, A. F.
name: Netto, Y.
name: Bonomo, A. S.
name: Parviainen, H.
name: Valio, A.
name: Aigrain, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The study of young Sun-like stars is of fundamental importance to understand the magnetic activity and rotational evolution of the Sun. Space-borne photometry by the Kepler telescope provides unprecedented datasets to investigate these phenomena in Sun-like stars. We present a new analysis of the entire Kepler photometric time series of the moderately young Sun-like star Kepler-17 that is accompanied by a transiting hot Jupiter. We applied a maximum-entropy spot model to the long-cadence out-of-transit photometry of the target to derive maps of the starspot filling factor versus the longitude and the time. These maps are compared to the spots occulted during transits to validate our reconstruction and derive information on the latitudes of the starspots. We find two main active longitudes on the photosphere of Kepler-17, one of which has a lifetime of at least $\sim 1400$ days, although with a varying level of activity. The latitudinal differential rotation is of solar type, that is, with the equator rotating faster than the poles. We estimate a minimum relative amplitude $ΔΩ/ Ω$ between $\sim 0.08 \pm 0.05$ and $0.14 \pm 0.05$, our determination being affected by the finite lifetime of individual starspots and depending on the adopted spot model parameters. We find marginal evidence of a short-term intermittent activity cycle of $\sim 48$ days and an indication of a longer cycle of $400-600$ days characterized by an equatorward migration of the mean latitude of the spots as in the Sun. The rotation of Kepler-17 is likely to be significantly affected by the tides raised by its massive close-by planet. We confirm the reliability of maximum-entropy spot models to map starspots in young active stars and characterize the activity and differential rotation of this young Sun-like planetary host.
description: Accepted by Astronomy and Astrophysics - 22 pages, 29 figure, 1 table, 2 appendixes
On the Noncommutative Geometry of Twisted Spheres
Creators: name: Aschieri, Paolo
name: Bonechi, Francesco
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We describe noncommutative geometric aspects of twisted deformations, in particular of the spheres in Connes and Landi [8] and in Connes and Dubois Violette [7], by using the differential and integral calculus on these spaces that is covariant under the action of their corresponding quantum symmetry groups. We start from multiparametric deformations of the orthogonal groups and related planes and spheres. We show that only in the twisted limit of these multiparametric deformations the covariant calculus on the plane gives by a quotient procedure a meaningful calculus on the sphere. In this calculus the external algebra has the same dimension of the classical one. We develop the Haar functional on spheres and use it to define an integral on forms. In the twisted limit (differently from the general multiparametric case) the Haar functional is a trace and we thus obtain a cycle on the algebra. Moreover we explicitely construct the *-Hodge operator on the space of forms on the plane and then by quotient on the sphere. We apply our results to even spheres and we compute the Chern-Connes pairing between the character of this cycle, i.e. a cyclic 2n-cocycle, and the instanton projector defined in [7].
description: 23 pages. We added a proof of positivity and reality of the integral. We establish a relation with the results of Connes and Dubois Violette [7]. The main modifications are in the last section where we cut the results overlapping with [7] and we now compute the charge of the instanton projector for arbitrary even spheres (not just 4-dimensional). To appear in Lett. Math. Phys
title: Faith and teaching: What teachers’ stories reveal
Creators: name: Nathan, Francesca A
Publisher: name: Griffith University
Year: 2024
Subjects: subject: narrative inquiry
subject: faith-based teaching
subject: Christianity

description: This study is a narrative inquiry into the stories of four teachers in a Christian school. It used a Deweyan-inspired aesthetic framework to analyze how teachers in Christian schools conceptualized and enacted the connections between their Christian identity and their practice. By exploring the relationship between faith and teaching, this research contributes to the ongoing discussion in Christian education about what it means to teach Christianly. It also considers whether the act of narrating their stories had an influence on teachers' self-concept and/or their practice; possibly highlighting a potential use of narratives in teacher education and development. The study concludes that Christian teachers in this study conceptualized the faith and teaching relationship in personal terms through their dispositions and understandings as teachers; relationally, in their interactions with students and colleagues; and pedagogically in the understood purpose behind all that they do as teachers. Moreover, the extent to which they comprehended and enacted the faith and teaching relationship was impacted by the training they received regarding Christian education and their personal wrestle with the idea of teaching Christianly.
Atomically-thin micas as proton conducting membranes
Creators: name: Mogg, L.
name: Hao, G. -P.
name: Zhang, S.
name: Bacaksiz, C.
name: Zou, Y.
name: Haigh, S. J.
name: Peeters, F. M.
name: Geim, A. K.
name: Lozada-Hidalgo, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Monolayers of graphene and hexagonal boron nitride (hBN) are highly permeable to thermal protons. For thicker two-dimensional (2D) materials, proton conductivity diminishes exponentially so that, for example, monolayer MoS2 that is just three atoms thick is completely impermeable to protons. This seemed to suggest that only one-atom-thick crystals could be used as proton conducting membranes. Here we show that few-layer micas that are rather thick on the atomic scale become excellent proton conductors if native cations are ion-exchanged for protons. Their areal conductivity exceeds that of graphene and hBN by one-two orders of magnitude. Importantly, ion-exchanged 2D micas exhibit this high conductivity inside the infamous gap for proton-conducting materials, which extends from 100 C to 500 C. Areal conductivity of proton-exchanged monolayer micas can reach above 100 S cm-2 at 500 C, well above the current requirements for the industry roadmap. We attribute the fast proton permeation to 5 A-wide tubular channels that perforate micas' crystal structure which, after ion exchange, contain only hydroxyl groups inside. Our work indicates that there could be other 2D crystals with similar nm-scale channels, which could help close the materials gap in proton-conducting applications.
Syncopacma linella
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Syncopacma
Syncopacma linella

description: Syncopacma linella (CHRÉTIEN, 1904)
 N e w t o C r e t e.
E x a m i n e d m a t e r i a l. 13, 5 km S. Topolia, 300 m, 25-26.vi.2000, leg. Fibiger et al. (ZMUC); 13, 4 km S. Topolia, 300 m, 25-29.vi.2000, leg. Fibiger et al. (ZMUC); 333, 4 km S. Topolia, 350 m, 28.vii.-1.viii.2001, leg. Fibiger et al., genitalia slide Hendriksen 3280 (ZMUC); 233, Kissou Kampos, 460 m, 12.viii.2006, leg. Ruckdeschel (TLMF).
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on page 163, DOI: 10.5281/zenodo.5356591
Pachyanthrax fulvifacies Austen 1937
Creators: name: Arabyat, Sahar
name: Katbeh-Bader, Ahmad
name: Greathead, David
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Pachyanthrax
Pachyanthrax fulvifacies

description: Pachyanthrax fulvifacies (Austen 1937)
Material: One specimen: Ad Disah 20.VII.1996 (1ɗ). Distribution: Palaearctic: Palestine.
It appears to be endemic in Palestine and Jordan so far.
description: Published as part of Arabyat, Sahar, Katbeh-Bader, Ahmad & Greathead, David, 2004, The bee flies (Diptera: Bombyliidae) of Jordan, pp. 1-48 in Zootaxa 654 on page 36, DOI: 10.5281/zenodo.158701
Syncopacma polychromella
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Syncopacma
Syncopacma polychromella

description: Syncopacma polychromella (REBEL, 1902)
F i r s t r e c o r d. KARSHOLT (2004 -2011) without details. GOZMÁNY (2012: 343) from Ag. Galini (leg. Klimesch).
E x a m i n e d m a t e r i a l. 1♀, Iraklion distr., Zaros, 5-6.vi. 1988, leg. Johansson (ZMUC); 13, Lassithi distr., Makrygialos, 11-19.vi.1988, leg. Johansson (ZMUC); 2♀♀, Mt. Ida, Goniai, 700 m, 19.vii.1994, leg. Baldizzone (BALD, ZMUC); 13, Heraclion, 150 m, 20-26.iv.1995, leg. Fibiger (ZMUC); 13, 1♀, 5 km S. Topolia, 300 m, 25-26.vi.2000, leg. Fibiger et al. (ZMUC); 1♀, 4 km S. Topolia, 300 m, 25-29.vi.2000, leg. Fibiger et al. (ZMUC); 13, Kallergi Mts. 1450- 1550 m, 28-30.vii.2001, leg. Fibiger et al. (ZMUC); 233, 3♀♀, Omalos, 1100-1200 m, 28.vii.- 2.viii.2001, leg. Fibiger et al. (ZMUC); 1♀, road Sitia – Sakros, by Kiridi, 600 m, 9-10.v.2007, leg. Fibiger & Jeppesen et al. (ZMUC); 13, Kissou Kampos, 460 m, 20.iv.2008, leg. Ruckdeschel (TLMF); 233, Hora Sfakion, 50 m, 7-13.vi.2009, leg. Aarvik (NHMO); 233, 1♀, 3.5 km SW Omalos Plateau, 1200 m, 16-20.vi.2014, leg. Karsholt, Hviid & Vilhelmsen (ZMUC).
 R e m a r k s. The examined specimens are variable with regard to colour and wing markings. S. polychromella belongs to a complex of closely related taxa with more or less distinct differences in colour and markings of the forewings, but with almost similar genitalia. Further studies, with emphasis on molecular data are needed to resolve the taxonomy of the group.
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on page 163, DOI: 10.5281/zenodo.5356591
Anaplecta pavida Shelford 1906
Creators: name: VIDLIČKA, ĽUBOMÍR
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Ectobiidae
Anaplecta
Anaplecta pavida

description: Anaplecta pavida Shelford, 1906
 Distribution: Ecuador.
 Comments to faunistic records in Ecuador:
Shelford (1906:245): Cachabi, December 1896, 1 female (W.F.H. Rosenberg coll., Oxford Museum).
Shelford (1907a:10): Ecuador.
Princis (1965:368): Ecuador.
description: Published as part of VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, pp. 401-445 in Zootaxa 3599 (5) on page 417, DOI: 10.11646/zootaxa.3599.5.1, http://zenodo.org/record/10096900
$σ(e^+e^-\to{hadrons})$ and the Heavy Quark Masses
Creators: name: Steinhauser, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The precise data for the total cross section $σ(e^+e^-\to{hadrons})$ from the charm threshold region, when combined with the evaluation of moments with three loop accuracy, lead to a direct determination of the short distance $\bar{\rm MS}$ charm quark mass $m_c(m_c)=1.304(27)$. Applying the same approach to the bottom quark we obtain $m_b(m_b)=4.191(51)$ GeV. A complementary method for the determination of $m_b$ is based of the analysis of the $Υ(1S)$ system which is confronted with a next-to-next-to-next-to-leading order calculation of the corresponding energy level. This leads to $m_b(m_b)=4.346(70)$ GeV.
description: 5 pages, talk presented at RADCOR/Loops and Legs 2002
Additional file 6 of Liver failure as the initial presentation in cancer of unknown primary: a case report
Creators: name: Qin, Lisha
name: Tian, Shan
name: Yang, Lian
name: Fan, Jun
name: Zhang, Jianchu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Virology

description: Supplementary Material 6
The Grothendieck ring of varieties is not a domain
Creators: name: Poonen, Bjorn
Publisher: name: arXiv
Year: 2002
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14A10, 14G35

description: Let k be a field. Let K_0(V_k) denote the quotient of the free abelian group generated by the geometrically reduced varieties over k, modulo the relations of the form [X]=[X-Y]+[Y] whenever Y is a closed subvariety of X. Product of varieties makes K_0(V_k) into a ring. We prove that if the characteristic of k is zero, then K_0(V_k) is not a domain.
description: 4 pages
Maraca fossata Hebard 1926
Creators: name: VIDLIČKA, ĽUBOMÍR
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Ectobiidae
Maraca
Maraca fossata

description: Maraca fossata Hebard, 1926
 Distribution: French Guiana, Venezuela, Brazil, Ecuador, Suriname.
 Comments to faunistic records in Ecuador:
Rocha e Silva Albuquerque (1965:2): Ecuador.
description: Published as part of VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, pp. 401-445 in Zootaxa 3599 (5) on page 418, DOI: 10.11646/zootaxa.3599.5.1, http://zenodo.org/record/10096900
Automatic Multi-Sensor Extrinsic Calibration for Mobile Robots
Creators: name: Zuñiga-Noël, David
name: Ruiz-Sarmiento, Jose-Raul
name: Gomez-Ojeda, Ruben
name: Gonzalez-Jimenez, Javier
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In order to fuse measurements from multiple sensors mounted on a mobile robot, it is needed to express them in a common reference system through their relative spatial transformations. In this paper, we present a method to estimate the full 6DoF extrinsic calibration parameters of multiple heterogeneous sensors (Lidars, Depth and RGB cameras) suitable for automatic execution on a mobile robot. Our method computes the 2D calibration parameters (x, y, yaw) through a motion-based approach, while for the remaining 3 parameters (z, pitch, roll) it requires the observation of the ground plane for a short period of time. What set this proposal apart from others is that: i) all calibration parameters are initialized in closed form, and ii) the scale ambiguity inherent to motion estimation from a monocular camera is explicitly handled, enabling the combination of these sensors and metric ones (Lidars, stereo rigs, etc.) within the same optimization framework. %Additionally, outlier observations arising from local sensor drift are automatically detected and removed from the calibration process. We provide a formal definition of the problem, as well as of the contributed method, for which a C++ implementation has been made publicly available. The suitability of the method has been assessed in simulation an with real data from indoor and outdoor scenarios. Finally, improvements over state-of-the-art motion-based calibration proposals are shown through experimental evaluation.
description: 8 pages. 3 figures. IEEE Robotics and Automation Letters, 2019. Project webpage (code): http://github.com/dzunigan/robot_autocalibration
Aproaerema anthyllidella
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Aproaerema
Aproaerema anthyllidella

description: Aproaerema anthyllidella (HÜBNER, 1813)
F i r s t r e c o r d. KARSHOLT (2004 -2011) without details. GOZMÁNY (2012: 340) from Ag. Galini (leg. Sutter, det. Karsholt).
E x a m i n e d m a t e r i a l. 13, Mt. Ida, Goniai, 700 m, 24.vii.1994, leg. Baldizzone (BALD); 233, Kato Stalos, 19-27.iv.1995, leg. Baungaard (ZMUC); 13, Hore Spakion, 30 m, 21.iv.1995, leg. Fibiger (ZMUC); 13, Drepanides by Kissamos, 100 m, 27.iii.-2.iv.1999, leg. Fibiger & Jeppesen et al. (ZMUC); 13, Georgiupoli, 50 m, 28.iii.-2.iv.1999, leg. Fibiger & Jeppesen et al., genitalia slide Hendriksen 3279 (ZMUC); 13, 15 km SW Rethymnon, Agriroupoli, 200 m, 25- 29.vi.2000, leg. Fibiger et al. (ZMUC); 233, 4 km S. Topolia, 300 m, 25-29.vi.2000, leg. Fibiger et al. (HH 3601) (ZMUC); 1♀, Kallergi Mts., 1450-1550 m, 28-30.vii.2001, leg. Fibiger et al. (ZMUC); 1♀, Omalos, 1100-1200 m, 28.vii.-2.viii.2001, leg. Fibiger et al. (ZMUC); 13, Skines, 75 m, 5.-11.vi.2004, leg. Skule, Hviid & Vesterhede (ZMUC); 1♀, 2 km S Fourne, 250 m, 6.vi.2004, leg. Skule, Hviid & Vesterhede (ZMUC); 1♀, N of Omalos Plateau, at pass, 1150 m, 11.vi.2004, leg. Skule, Hviid & Vesterhede (ZMUC); 233, Agia Galini, ca. 100 m, 15.xi.2004, leg. Ruckdeschel (TLMF); 1♀, Loutro, Phinix, 40 m, 17.v.2005, leg. Ruckdeschel (TLMF); 13, Xekollimenos, Kirtomados, ca. 70 m, 9.v.2000, leg. Ruckdeschel (TLMF); 13, Xekollimenos, Patellari, ca. 20 m, 25.ix.2001, leg. Ruckdeschel (TLMF); 13, Koutsounari, 100 m, 12.iv.2008, leg. Ruckdeschel (TLMF); 13, Koutsounari, Agios Joannis, 390 m, 28.iv.2003, leg. Ruckdeschel (TLMF); 13, above Spili, 610 m, 12.viii.2006, leg. Ruckdeschel (TLMF); 13, Schinokapsala, Agios Georgios, 675 m, 3.xi.2004, leg. Ruckdeschel (TLMF); 233, Sisi, ca. 50 m, 6.iv.1999, leg. Ruckdeschel (TLMF); 13, 18 km SSE, Sitia, 400 m, 8.v.2007, leg. Fibiger & Jeppesen et al., genitalia in vial (ZMUC); 1♀, road Sitia – Sakros, by Kiridi, 600 m, 9-10.v.2007, leg. Fibiger & Jeppesen et al. (ZMUC); 1♀, Hora Sfakion, 50 m, 5-9.vi.2009, leg. Aarvik; 13, ditto, but 8- 15.ix.2012, 2♀♀, 233, ditto, but 2♀♀, 26.vii.-7.viii.2015; 1♀, ditto, but 8-18.viii.2016 (NHMO); 1♀, Imbros, 570m, 11.vi.2010, leg. Aarvik; 2♀♀ ditto, but 15.vi.2013 (NHMO); 13, Omalos Plateau, 1040 m, 14-20.vi.2014, leg. Karsholt, Hviid & Vilhelmsen (ZMUC).
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on page 163, DOI: 10.5281/zenodo.5356591
Pachyanthrax telamon Loew 1869
Creators: name: Arabyat, Sahar
name: Katbeh-Bader, Ahmad
name: Greathead, David
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Pachyanthrax
Pachyanthrax telamon

description: Pachyanthrax telamon (Loew 1869)
Material: 24 specimens: Al Arida 4.V.1981 (2ɗ); Al Husson 17.VI.2002 (3ɗ); Amman 15.IV.1990 (1Ψ), 15.V.1997 (1Ψ, 5ɗ), 16.V.1990 (2ɗ); Ar Rumman 6.V.2002 (1Ψ, 1ɗ); Ayn Aqraba 29.IV.2002 (1ɗ); Dibbin 13.V.2002 (1ɗ); Hummrit As Sahin 3.VI.2002 (1ɗ); Jarash 12.V.1983 (1Ψ); Kafr Asad 9.IV.2001 (2ɗ) (Al Al Bayt University); Rihab 7.V.2001 (1ɗ) (Al Al Bayt University); Wadi al Arab 16.IV.2001 (1ɗ) (Al Al Bayt University).
Distribution: Palaearctic: Armenia, Azerbaijan, Cyprus, France, Greece, Gruzia, Iran, Italy, Kyrgyz Republic, Palestine, Syria, Tajikistan, Turkey, Turkmenistan, Uzbekistan, Yugoslavia.
This species is a common species in Jordan.
description: Published as part of Arabyat, Sahar, Katbeh-Bader, Ahmad & Greathead, David, 2004, The bee flies (Diptera: Bombyliidae) of Jordan, pp. 1-48 in Zootaxa 654 on page 36, DOI: 10.5281/zenodo.158701
Anacampsis scintilella
Creators: name: Karsholt, Ole
name: Huemer, Peter
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Anacampsis
Anacampsis scintilella

description: Anacampsis scintilella (FISCHER VON RÖSLERSTAMM, 1841)   N e w t o C r e t e.
E x a m i n e d m a t e r i a l. 233, Mt. Ida, Astiraki, 500 m, 23.vii.1994, leg. Baldizzone, genitalia slide Hendriksen 3392 (BALD); 1♀, Mt. Ida, Goniai, 700 m, 24.vii.1994, leg. Baldizzone (ZMUC); 13, Meskla – Zourva, 650 m, 27.vi.2000, leg. Fibiger et al. (ZMUC).
description: Published as part of Karsholt, Ole & Huemer, Peter, 2017, Review of Gelechiidae (Lepidoptera) from Crete, pp. 159-190 in Linzer biologische Beiträge 49 (1) on page 164, DOI: 10.5281/zenodo.5356591
Quot Functors for Deligne-Mumford Stacks
Creators: name: Olsson, Martin
name: Starr, Jason
Publisher: name: arXiv
Year: 2002
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10

description: Given a separated and locally finitely-presented Deligne-Mumford stack $\cX$ over an algebraic space $S$, and a locally finitely-presented $\OO_{\cX}$-module $\cF$, we prove that the Quot functor $\text{Quot}(\cF/\cX/S)$ is represented by a separated and locally finitely-presented algebraic space over $S$. Under additional hypotheses, we prove that the connected components of $\text{Quot}(\cF/\cX/S)$ are quasi-projective over $S$.
description: 20 pages. A Mistake in Section 4 is corrected in this version and in the published version
Ischnoptera josephina Giglio-Tos 1898
Creators: name: VIDLIČKA, ĽUBOMÍR
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Oecophoridae
Ischnoptera
Ischnoptera josephina

description: Ischnoptera josephina Giglio-Tos, 1898
 Distribution: Ecuador.
 Comments to faunistic records in Ecuador:
Giglio-Tos (1898:6): 4 specimens, San José.
Kirby (1904: 83): Ecuador.
Shelford (1908a:8): Ecuador.
Campos (1923:6 and 1926:47): the same data as mentioned by Giglio-Tos (1898).
Princis (1969:746): Ecuador.
description: Published as part of VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, pp. 401-445 in Zootaxa 3599 (5) on pages 418-419, DOI: 10.11646/zootaxa.3599.5.1, http://zenodo.org/record/10096900
Weighted Point Cloud Augmentation for Neural Network Training Data Class-Imbalance
Creators: name: Griffiths, David
name: Boehm, Jan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recent developments in the field of deep learning for 3D data have demonstrated promising potential for end-to-end learning directly from point clouds. However, many real-world point clouds contain a large class im-balance due to the natural class im-balance observed in nature. For example, a 3D scan of an urban environment will consist mostly of road and facade, whereas other objects such as poles will be under-represented. In this paper we address this issue by employing a weighted augmentation to increase classes that contain fewer points. By mitigating the class im-balance present in the data we demonstrate that a standard PointNet++ deep neural network can achieve higher performance at inference on validation data. This was observed as an increase of F1 score of 19% and 25% on two test benchmark datasets; ScanNet and Semantic3D respectively where no class im-balance pre-processing had been performed. Our networks performed better on both highly-represented and under-represented classes, which indicates that the network is learning more robust and meaningful features when the loss function is not overly exposed to only a few classes.
description: 7 pages, 6 figures, submitted for ISPRS Geospatial Week conference 2019
Einblicke ins Forschungsdatenmanagement - Forschungsdatenmanagement in Verbundprojekten
Creators: name: Voigt, Pia
name: Weiner, Barbara
name: Frericks, Sebastian
Publisher: name: Zenodo
Year: 2020
Subjects: Verbundprojekte
Forschungsförderung
Forschungsdatenmanagement
Third-party funding
Research Data Management

description: Diese Präsentation wurde im Zuge der digitalen Veranstaltungsreihe "Einblicke ins Forschungsdatenmanagement" erstellt. Diese findet regelmäßig an der Universität Leipzig für alle Interessierten zu verschiedenen Themen des Forschungsdatenmanagements statt. Im sechsten Teil der Reihe dreht sich alles um die Umsetzung des Forschungsdatenmanagements in Verbundprojekten. Diese stehen durch ihre überregionale und interdisziplinäre Ausrichtung vor größeren Herausforderungen, zentrale Strukturen für das Management von Daten zu etablieren. In vorliegender Präsentation sollen überblicksartig Hinweise auf Hürden und deren Überwindung für Verbundprojekte gegeben werden.
Additional file 6 of Secretome characterization of clinical isolates from the Mycobacterium abscessus complex provides insight into antigenic differences
Creators: name: Cornejo-Granados, Fernanda
name: Kohl, Thomas A.
name: Sotomayor, Flor Vásquez
name: Andres, Sönke
name: Hernández-Pando, Rogelio
name: Hurtado-Ramirez, Juan Manuel
name: Utpatel, Christian
name: Niemann, Stefan
name: Maurer, Florian P.
name: Ochoa-Leyva, Adrian
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 6: Figure S2. GO enrichment analysis of enzymes for M. abscessus ATCC19977. Percentage of sequences annotated with each GO term for the secreted proteins (blue) and the complete proteins in the genome (red).
Ischnoptera peckorum Roth 1988
Creators: name: VIDLIČKA, ĽUBOMÍR
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Oecophoridae
Ischnoptera
Ischnoptera peckorum

description: Ischnoptera peckorum Roth, 1988
 Distribution: Ecuador – Galápagos Islands (endemic).
 Comments to faunistic records in Galápagos:
Roth (1988:307): St. Cruz, 1 km east of Bellavista, 210 m, Bellavista Cave No. 2, 14 July 1985, S. & J. Peck leg.
Peck (1990:371); Peck & Roth (1992:2210); Peck (1996:1502) & Peck (2001:151): the same locality as mentioned by Roth (1988).
description: Published as part of VIDLIČKA, ĽUBOMÍR, 2013, Cockroaches (Blattaria) of Ecuador-checklist and history of research, pp. 401-445 in Zootaxa 3599 (5) on page 419, DOI: 10.11646/zootaxa.3599.5.1, http://zenodo.org/record/10096900
Deep Non-Rigid Structure from Motion
Creators: name: Kong, Chen
Publisher: name: Carnegie Mellon University
Year: 2019
Subjects: subject: 90602 Control Systems, Robotics and Automation
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Non-Rigid Structure from Motion (NRSfM) refers to the problem of reconstructing cameras and the 3D point cloud of a non-rigid object from an ensemble of images with 2D correspondences. Current NRSfM algorithms are limited from two perspectives: (i) the number of images, and (ii) the type of shape variability they can handle. These difficulties stem from the inherent conflict between the condition of
the system and the degrees of freedom needing to be modeled – which has hampered its practical utility for many applications within vision. In this paper we propose a
novel hierarchical sparse coding model for NRSFM which can overcome (i) and (ii) to such an extent, that NRSFM can be applied to problems in vision previously thought too ill posed. Our approach is realized in practice as the training of an unsupervised deep neural network (DNN) auto-encoder with a unique architecture that is able to disentangle pose from 3D structure. Using modern deep learning computational platforms allows us to solve NRSfM problems at an unprecedented scale and shape complexity. Our approach has no 3D supervision, relying solely on 2D point
correspondences. Further, our approach is also able to handle missing/occluded 2D points without the need for matrix completion. Extensive experiments demonstrate
the impressive performance of our approach where we exhibit superior precision and robustness against all available state-of-the-art works in some instances by an order of magnitude. We further propose a new quality measure (based on the network weights) which circumvents the need for 3D ground-truth to ascertain the confidence
we have in the reconstructability. We believe our work to be a significant advance over state-of-the-art in NRSFM.