cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Field Orientation Dependent Magnetic Phases In Weyl Semimetal Co3Sn2S2
Creators: name: Pate, Samuel E.
name: Wang, Bin
name: Shen, Bing
name: Jiang, J. Samuel
name: Welp, Ulrich
name: Kwok, Wai-Kwong
name: Xu, Jing
name: Li, Kezhen
name: Divan, Ralu
name: Xiao, Zhi-Li
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetism plays a key role in the emergence of topological phenomena in the Weyl semimetal Co3Sn2S2, which exhibits a ferromagnetic (FM) interactions along the c-axis of the crystal and an antiferromagnetic (AFM) interactions within the ab plane. Extensive studies on the temperature dependence of the magnetism with the magnetic field along the c-axis have uncovered a number of magnetic phases. Currently, the nature and origins of the reported magnetic phases are under debate. Here we report on magnetic field orientation effects on the magnetism in Co3Sn2S2. The shape of the hysteresis loop of the Hall resistance at a fixed temperature is found to change from rectangular to bow-tie-like as the magnetic field is tilted from the c-axis towards the ab plane, resembling that reported for magnetic fields along the c-axis as the temperature approaches the Curie temperature from below. Unlike their temperature-dependent counterparts, the newly observed bow-tie-like hysteresis loops show exchange bias. Our results showcase the contribution of the in-plane AFM interactions to the magnetism in Co3Sn2S2 and demonstrate a new way to tune its magnetic phases. They also shed light on the temperature-dependent magnetic phases occurring in the magnetic field along the c-axis of the crystal.
The Schwinger Mechanism in (Anti) de Sitter Spacetimes
Creators: name: Samantray, Prasant
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a short and novel derivation of the Schwinger mechanism for particle pair production in $1+1$ dimensional de Sitter and Anti de Sitter spacetimes. We work directly in the flat embedding space and derive the pair production rates in these spacetimes via instanton methods. The derivation is manifestly coordinate independent, and also lends support to the possible deep connection between two conceptually disparate quantum phenomena - Schwinger effect and the Davies-Unruh effect.
description: 9 pages. References added, typos corrected and expanded conclusion
Calculation of differential cross section for dielectronic recombination with two-electron uranium
Creators: name: Lyashchenko, Konstantin N.
name: Andreev, Oleg Yu.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Calculation of the differential cross section for the dielectronic recombination with two-electron uranium within the framework of QED is presented. The polarization of the emitted photon is investigated. The contributions of the Breit interaction and the interference of the photon multipoles are studied.
description: 18 pages, 10 figures
Chrysymenia pseudoventricosa W. E. Schmidt, Gurgel and Fredericq 2016, sp. nov.
Creators: name: Schmidt, W. E.
name: Gurgel, C. F. D.
name: Fredericq, S.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Rhodymeniales
Rhodymeniaceae
Chrysymenia
Chrysymenia pseudoventricosa

description: Chrysymenia pseudoventricosa W. E. Schmidt, Gurgel and Fredericq, sp. nov.
Figures 9–16.
 HOLOTYPE: sample LAF-NSF-II-78-2 (WES 16), Campeche Banks, Southeastern Gulf of Mexico, Mexico, 22˚10’420” N, 91˚ 09’550” W), 42–43 m depth sample NSF-II-106-3, vegetative plant, attached to rhodolith. Figs. 9–14, leg. Suzanne Fredericq, deposited in LAF.
 ETYMOLOGY: the specific epithet refers to the similarity in habit with C. ventricosa.
 SYNONYM: Chrysymenia ventricosa in part
MATERIAL EXAMINED: Campeche Banks, SE Gulf of Mexico, Mexico, LAF-NSF-II-63-1 (WES 88), 21˚48’048” N, 91˚54’962” W), 30–38 m depth; LAF-NSF-II-106-3, 22˚10’420” N, 91˚ 09’550” W, 18.vi.2005, dredged from a depth of 37–43 m, attached to rhodolith; sample NSF-II-106-3, vegetative plant. See Table 1.
 GEOGRAPHIC DISTRIBUTION: Gulf of Mexico, Florida, Caribbean, Bermuda, Canary Islands [see records in Taylor (1960), Littler and Littler (2000) as C. “ ventricosa ”]
HABIT AND VEGETATIVE STRUCTURE: Thalli up to 10.5 cm tall and 13 cm in width, terete to moderately compressed, with a thickness of approximately 4.5 mm, from a small attachment stipe of 2 mm in height, and a small discoid holdfast (Fig. 9). The blade is hollow and filled with mucilage. Gland cells are pyriform, solitary (Fig. 10), or borne on unmodified medullary cells (Fig. 11). The thallus is completely corticated (Fig. 12), composed of threeto-four pigmented cortical cell layers (Fig. 13), a larger layer of roundish subcortical cells, and one-to-two medullary layers of hyaline cells (Fig. 14). The middle portion of the stipe is of complete solid construction, with pigmented cortical cells transitioning into large hyaline medullary cells filling the solid mass with rhizoidal filaments (Fig. 15). Internal filaments develop either from transformed medullary cells, or invading medullary cells (Fig. 16). Female, male and tetrasporangial thalli were not seen.
 REPRESENTATIVE SEQUENCES: HQ400581 (rbc L), KT154726 (LSU), KT154701 (UPA).
description: Published as part of Schmidt, W. E., Gurgel, C. F. D. & Fredericq, S., 2016, Taxonomic Transfer of the Red Algal Genus Gloiosaccion to Chrysymenia (Rhodymeniaceae, Rhodymeniales), Including the Description of a New Species, Chrysymenia pseudoventricosa, for the Gulf of Mexico, pp. 54-70 in Phytotaxa 243 (1) on page 62, DOI: 10.11646/phytotaxa.243.1.2, http://zenodo.org/record/13680442
Probing dark energy via galaxy cluster outskirts
Creators: name: Morandi, Andrea
name: Sun, Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a Bayesian approach to combine $Planck$ data and the X-ray physical properties of the intracluster medium in the virialization region of a sample of 320 galaxy clusters ($0.0563$ keV) observed with $Chandra$. We exploited the high-level of similarity of the emission measure in the cluster outskirts as cosmology proxy. The cosmological parameters are thus constrained assuming that the emission measure profiles at different redshift are weakly self-similar, that is their shape is universal, explicitly allowing for temperature and redshift dependence of the gas fraction. This cosmological test, in combination with $Planck$+SNIa data, allows us to put a tight constraint on the dark energy models. For a constant-$w$ model, we have $w=-1.010\pm0.030$ and $Ω_m=0.311\pm0.014$, while for a time-evolving equation of state of dark energy $w(z)$ we have $Ω_m=0.308\pm 0.017$, $w_0=-0.993\pm0.046$ and $w_a=-0.123\pm0.400$. Constraints on the cosmology are further improved by adding priors on the gas fraction evolution from hydrodynamic simulations. Current data favour the cosmological constant with $w\equiv-1$, with no evidence for dynamic dark energy. We checked that our method is robust towards different sources of systematics, including background modelling, outlier measurements, selection effects, inhomogeneities of the gas distribution and cosmic filaments. We also provided for the first time constraints on which definition of cluster boundary radius is more tenable, namely based on a fixed overdensity with respect to the critical density of the Universe. This novel cosmological test has the capacity to provide a generational leap forward in our understanding of the equation of state of dark energy.
description: Accepted for publication in MNRAS
Investigating the Correlation Between Presence and Reaction Time in Mixed Reality
Creators: name: Chandio, Yasra
name: Bashir, Noman
name: Interrante, Victoria
name: Anwar, Fatima M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Measuring presence is critical to improving user involvement and performance in Mixed Reality (MR). \emph{Presence}, a crucial aspect of MR, is traditionally gauged using subjective questionnaires, leading to a lack of time-varying responses and susceptibility to user bias. Inspired by the existing literature on the relationship between presence and human performance, the proposed methodology systematically measures a user's reaction time to a visual stimulus as they interact within a manipulated MR environment. We explore the user reaction time as a quantity that can be easily measured using the systemic tools available in modern MR devices. We conducted an exploratory study (N=40) with two experiments designed to alter the users' sense of presence by manipulating \emph{place illusion} and \emph{plausibility illusion}. We found a significant correlation between presence scores and reaction times with a correlation coefficient -0.65, suggesting that users with a higher sense of presence responded more swiftly to stimuli. We develop a model that estimates a user's presence level using the reaction time values with high accuracy of up to 80\%. While our study suggests that reaction time can be used as a measure of presence, further investigation is needed to improve the accuracy of the model.
Band gap engineering by Bi intercalation of graphene on Ir(111)
Creators: name: Warmuth, Jonas
name: Bruix, Albert
name: Michiardi, Matteo
name: Hänke, Torben
name: Bianchi, Marco
name: Wiebe, Jens
name: Wiesendanger, Roland
name: Hammer, Bjørk
name: Hofmann, Philip
name: Khajetoorians, Alexander A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the structural and electronic properties of a single bismuth layer intercalated underneath a graphene layer grown on an Ir(111) single crystal. Scanning tunneling microscopy (STM) reveals a hexagonal surface structure and a dislocation network upon Bi intercalation, which we attribute to a $\sqrt{3}\times\sqrt{3}R30°$ Bi structure on the underlying Ir(111) surface. Ab-initio calculations show that this Bi structure is the most energetically favorable, and also illustrate that STM measurements are most sensitive to C atoms in close proximity to intercalated Bi atoms. Additionally, Bi intercalation induces a band gap ($E_g=0.42\,$eV) at the Dirac point of graphene and an overall n-doping ($\sim 0.39\,$eV), as seen in angular-resolved photoemission spectroscopy. We attribute the emergence of the band gap to the dislocation network which forms favorably along certain parts of the moiré structure induced by the graphene/Ir(111) interface.
description: 5 figures
Tuning optical properties of Ge nanocrystals by Si shell
Creators: name: Nestoklon, M. O.
name: Poddubny, A. N.
name: Voisin, P.
name: Dohnalova, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theoretical study of Ge-core/Si-shell nanocrystals in a wide bandgap matrix and compare the results with experimental data obtained from the samples prepared by co-sputtering. The empirical tight-binding technique allows us to account for the electronic structure under strain on the atomistic level. We find that a Si shell as thick as 1 monolayer is enough to reduce the radiative recombination rate as a result of valley $L - X$ cross-over. Thin Si shell leads to a dramatic reduction of the optical bandgap from visible to near-infrared range, which is promising for photovoltaics and photodetector applications. Our detailed analysis of the structure of the confined electron and hole states in real and reciprocal spaces indicates that the type-II heterostructure is not yet achieved for Si shells with the thickness below 0.8 nm, despite some earlier theoretical predictions. The energy levels of holes are affected by the Si shell stronger than the electron states, even though holes are completely confined to the Ge core. This occurs probably due to a strong influence of strain on the band offsets.
description: 8 pages, 6 figures plus supplementary
title: Die Schuldenbremse in der COVID-19-Krise – quo vadis?
title: The debt brake in the COVID-19 crisis – quo vadis?
titleType: AlternativeTitle
Creators: name: Meister, John
Publisher: name: HAW Hamburg
Year: 2023
Subjects: subject: Schuldenbremse
subject: Haushalt
subject: Haushaltskonsolidierung
subject: Staatsverschuldung
subject: Corona
subject: COVID-19
subject: 320: Politik

description: Die Einführung der Schuldenbremse in 2009 stellte ein weitreichender Paradigmenwechsel in der deutschen Haushaltspolitik dar. Durch die effektive Institutionalisierung des grundsätzlichen Neuverschuldungsverbots als fiskalisches Verfassungsregime konnte der Bundeshaushalt aus dezidierter finanzpolitischer Sicht erfolgreich auf den Pfad der Haushaltskonsolidierung zurückgebracht werden. Doch mit der COVID-19-Pandemie seit 2020 steht die Schuldenbremse nunmehr unter einer beispiellosen Belastungsprobe. Der nachfolgende Beitrag führt zunächst in die Entstehungsgeschichte und Funktionsweise der Schuldenbremse ein. Anschließend erfolgt eine Analyse der Wechselwirkungen zwischen der Pandemiepolitik und der Schuldenbremse im Zeitraum von 2020 bis Mitte 2023. Zum Abschluss des Beitrags wird ein Ausblick gegeben.
Placemaking and Streetscape Design: Exploring the Impacts of Tram Network Modernisation on Subjective Perception of Place Quality
Creators: name: DIEMER, MATTHEW JAMES
Publisher: name: Monash University
Year: 2020
Subjects: Community planning
Transport planning
Urban design

description: This thesis uses Melbourne’s tram network modernisation program as a case study to identify and explore potential impacts of sustainable transport infrastructure on subjective perception of place quality. Based on a review of existing published research and practice-based assessment tools, a questionnaire was developed and administered to gauge individual opinions on the importance and performance of 41 place quality performance indicators at 24 sites across Melbourne’s tram network. Analysis of the questionnaire results leads to an overall conclusion that tram modernisation tends to improve perception of streetscape place quality, particularly with regard to the performance of design-based indicators.
On the corrosion and additive manufacturing of 316L stainless steel
Creators: name: MALAB, GUILHERME SANDER
Publisher: name: Monash University
Year: 2020
Subjects: Metals and alloy materials

description: The corrosion characteristics of selective laser melted stainless steels have not yet been comprehensively investigated, in the context of their qualification and application in industrial service. This thesis evaluates how selective laser melting parameters affects the pitting characteristics of stainless steel 316L components.
Monelata nigra Whittaker 1930
Creators: name: Notton, David G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Diapriidae
Monelata
Monelata nigra

description: Monelata nigra Whittaker, 1930: 133.
Valid name
Monelata solida (Thomson, 1858).
Summary of types
Holotype ♀, BMNH number 9.688, by original designation. Paratypes 3 ♀♀.
Primary type data
Type; Type; Hollyburn/ B.C. 8.ix.29/ coll. O.W.; Canada:/ O.Whittaker coll./ per W.H.Storey/ B.M.1947- 212; 4379/ Monelata / nigra, Whitt. / ♀ / Det. O.Whittaker.
Type locality
Canada, British Columbia, Hollyburn.
Remarks
The description was based on 12 ♀♀. Whittaker referred to paratypes, implying that there was a holotype. The holotype is mounted on a card and is entire.
description: Published as part of Notton, David G., 2014, A catalogue of the types of Diapriinae (Hymenoptera, Diapriidae) at the Natural History Museum, London, pp. 1-123 in European Journal of Taxonomy 75 on page 108, DOI: 10.5852/ejt.2014.75, http://zenodo.org/record/3862773
Chrysymenia pumila
Creators: name: Schmidt, W. E.
name: Gurgel, C. F. D.
name: Fredericq, S.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Rhodymeniales
Rhodymeniaceae
Chrysymenia
Chrysymenia pumila

description: Chrysymenia pumila (J. Agardh) Weber-van Bosse 1928: p. 469
FIGURE 19.
 BASIONYM: Gloiosaccion pumilum J. Agardh 1892, p. 85.
TYPE: Port Phillip Heads, [New Holland] Victoria, South Australia, coll. J. Br. Wilson (Womersley 1996: 54). Holotype in Herb. Agardh, LD 26407.
 DISTRIBUTION: Southern Australia (Womersley 1996: 54), Indonesia (fide Weber-van Bosse 1928, Atmadja & Prud’homme van Reine 2012).
MATERIAL EXAMINED: Edithburgh Pier, Yorke Peninsula, South Australia, coll. C. F.D. Gurgel, 17.i.2010, 35º05’04’’ S, 137º49’56’’E (AD-A 90892).
HABIT: The specimen examined was air-dried on a herbarium sheet, and shows a distinct multi-vesiculate thallus (Fig. 19).
 NOTE: Womersley (1996) views G. pumilum J. Agardh to be a slender and young plant of G. brownii.
 REPRESENTATIVE SEQUENCES: HQ400576 (rbc L), KT154710 (UPA).
description: Published as part of Schmidt, W. E., Gurgel, C. F. D. & Fredericq, S., 2016, Taxonomic Transfer of the Red Algal Genus Gloiosaccion to Chrysymenia (Rhodymeniaceae, Rhodymeniales), Including the Description of a New Species, Chrysymenia pseudoventricosa, for the Gulf of Mexico, pp. 54-70 in Phytotaxa 243 (1) on page 65, DOI: 10.11646/phytotaxa.243.1.2, http://zenodo.org/record/13680442
Cloud Watching: Understanding Attacks Against Cloud-Hosted Services
Creators: name: Izhikevich, Liz
name: Tran, Manda
name: Kallitsis, Michalis
name: Fass, Aurore
name: Durumeric, Zakir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Cloud computing has dramatically changed service deployment patterns. In this work, we analyze how attackers identify and target cloud services in contrast to traditional enterprise networks and network telescopes. Using a diverse set of cloud honeypots in 5~providers and 23~countries as well as 2~educational networks and 1~network telescope, we analyze how IP address assignment, geography, network, and service-port selection, influence what services are targeted in the cloud. We find that scanners that target cloud compute are selective: they avoid scanning networks without legitimate services and they discriminate between geographic regions. Further, attackers mine Internet-service search engines to find exploitable services and, in some cases, they avoid targeting IANA-assigned protocols, causing researchers to misclassify at least 15\% of traffic on select ports. Based on our results, we derive recommendations for researchers and operators.
description: Proceedings of the 2023 ACM Internet Measurement Conference (IMC '23), October 24--26, 2023, Montreal, QC, Canada
title: Hedwig Affeltranger
title: geboren 29. Februar 1928, gestorben 11. Juni 1966
titleType: Subtitle
Creators: name: Zinniker, Otto
Publisher: name: [Verlag nicht ermittelbar]
Year: 1966
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Affeltranger, Hedwig
subject: Seen (Winterthur)
subject: Winterthur

description: Inhalt: Lebenslauf verfasst von der Mutter ; Abdankung von Herrn Pfarrer Otto Zinniker gehalten in der Kirche Winterthur-Seen am 18. Juni 1966 ; Allocution prononcée par Monsieur le pasteur Hausamann au service funèbre à Paris
RF-dressed Rydberg atoms in hollow-core fibres
Creators: name: Veit, Christian
name: Epple, Georg
name: Kübler, Harald
name: Euser, Tijmen G.
name: Russell, Philip St. J.
name: Löw, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The giant electro-optical response of Rydberg atoms manifests itself in the emergence of sidebands in the Rydberg excitation spectrum if the atom is exposed to a radio-frequency (RF) electric field. Here we report on the study of RF-dressed Rydberg atoms inside hollow-core photonic crystal fibres (HC-PCF), a system that enables the use of low modulation voltages and offers the prospect of miniaturised vapour-based electro-optical devices. Narrow spectroscopic features caused by the RF field are observed for modulation frequencies up to 500 MHz.
Analysis of the excess charge effects of a vicinal metal nanoparticle on the Förster Resonance Energy Transfer (FRET)
Creators: name: ABEYWICKRAMA, CHAMPI ASOKA
Publisher: name: Monash University
Year: 2020
Subjects: Nanophotonics

description: Förster Resonance Energy Transfer (FRET) is a significant inter-particle energy transfer mechanism used in various applications such as artificial light-harvesting devices and many biomedical applications. However, the range of applicability of FRET is limited to several nanometers arising problems for FRET-based applications. This thesis develops an analytical model where the range of applicability of FRET is increased by positioning the energy exchanging molecules in the proximity of a charged metallic nanoparticle.
Optimization of Pigment Extraction from Aristeus alcocki Shell Wastes via Different Solvent Systems
Creators: name: Chakraborty, Kajal
name: Krishnan, Soumya
name: Chakraborty, Rekha Devi
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
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: Inorganic Chemistry
subject: Science Policy
subject: Plant Biology
subject: 60506 Virology

description: Arabian deep-sea red shrimp Aristeus alcocki is considered to be an ideal source of pigments, especially astaxanthin, and its analogs. Extraction of pigments from exoskeleton discards of A. alcocki was analyzed by using organic solvents, namely, n-hexane, acetone, ethyl acetate, methanol, and ethanol under cold and hot conditions. A significantly greater pigments yield was obtained using acetone: methanol (1:1 v/v) (10.4-10.9%) and ethanol (9.3-9.7%) extractions compared with conventional acetone extract (7.4-8.1%) (p < 0.05). Chromatographic experiments with the pigment extracts showed the presence of free astaxanthin, astaxanthin mono-ester, and astaxanthin di-ester.
title: СУТОЧНАЯ И СЕЗОННАЯ АКТИВНОСТЬ МАЛЯРИЙНЫХ КОМАРОВ РОДА ANOPHELES В УСЛОВИЯХ ДАГЕСТАНА
Creators: name: Гаджиева, С.С.
Publisher: name: Федеральное государственное бюджетное научное учреждение «Северо-Кавказский федеральный научный аграрный центр»
Year: 2024
Subjects: малярийные комаров, активность, популяция, фауна, род, экология, вид, сезон.
malaria mosquitoes, activity, population, fauna, genus, ecology, species, season.

description: Установлено, что активность нападения малярийных комаров рода Anopheles на человека и животных подчинена определенной суточной периодичности, и численность популяций испытывает закономерные сезонные изменения. Определены суточный ритм активности и сезонная динамика численности популяций малярийных комаров в районе исследования.
description: The article considers that the activity of attacks by malaria mosquitoes of the genus Anopheles on humans and animals is subject to a certain daily frequency, and the number of populations experiences regular seasonal changes. The daily rhythm of activity and seasonal dynamics of the number of populations of malaria mosquitoes have been determined.
Inherit with Distillation and Evolve with Contrast: Exploring Class Incremental Semantic Segmentation Without Exemplar Memory
Creators: name: Zhao, Danpei
name: Yuan, Bo
name: Shi, Zhenwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: As a front-burner problem in incremental learning, class incremental semantic segmentation (CISS) is plagued by catastrophic forgetting and semantic drift. Although recent methods have utilized knowledge distillation to transfer knowledge from the old model, they are still unable to avoid pixel confusion, which results in severe misclassification after incremental steps due to the lack of annotations for past and future classes. Meanwhile data-replay-based approaches suffer from storage burdens and privacy concerns. In this paper, we propose to address CISS without exemplar memory and resolve catastrophic forgetting as well as semantic drift synchronously. We present Inherit with Distillation and Evolve with Contrast (IDEC), which consists of a Dense Knowledge Distillation on all Aspects (DADA) manner and an Asymmetric Region-wise Contrastive Learning (ARCL) module. Driven by the devised dynamic class-specific pseudo-labelling strategy, DADA distils intermediate-layer features and output-logits collaboratively with more emphasis on semantic-invariant knowledge inheritance. ARCL implements region-wise contrastive learning in the latent space to resolve semantic drift among known classes, current classes, and unknown classes. We demonstrate the effectiveness of our method on multiple CISS tasks by state-of-the-art performance, including Pascal VOC 2012, ADE20K and ISPRS datasets. Our method also shows superior anti-forgetting ability, particularly in multi-step CISS tasks.
Numerical methods for interface coupling of compressible and almost incompressible media
Creators: name: Del Razo, Mauricio J.
name: LeVeque, Randall J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Many experiments in biomedical applications and other disciplines use a shock tube. These experiments often involve placing an experimental sample within a fluid-filled container, which is then placed inside the shock tube. The shock tube produces an initial shock that propagates through gas before hitting the container with the sample. In order to gain insight into the shock dynamics that is hard to obtain by experimental means, computational simulations of the shock wave passing from gas into a thin elastic solid and into a nearly incompressible fluid are developed. It is shown that if the solid interface is very thin, it can be neglected, simplifying the model. The model uses Euler equations for compressible fluids coupled with a Tammann equation of state (EOS) to model both compressible gas and almost incompressible materials. A three-dimensional (2D axisymmetric) model of these equations is solved using high-resolution shock-capturing methods, with newly developed Riemann solvers and limiters. The methods are extended to work on a mapped grid to allow more complicated interface geometry, and they are adapted to work with adaptive mesh refinement (AMR) for higher resolution and faster computations. The Clawpack software is used to implement the method. These methods were initially inspired by shock tube experiments to study the injury mechanisms of traumatic brain injury (TBI).
Recension de la monographie de Jean-Philippe Pierron, Je est un nous. Enquête philosophique sur nos interdépendances avec le vivant, Actes Sud, coll. « Mondes sauvages »
Creators: name: Dufrasne Jason
Publisher: name: Zenodo
Year: 2024
Subjects: écobiographie
écopoétique
écologie
éthique
forme de vie
narration autobiographique
Val Plumwood
Aldo Leopold
polysensorialité
vérité subjective

description: Témoin d’une société occidentale dont la culture ne reconnaît plus « son inscription dans la nature », le philosophe français Jean-Philippe Pierron appelle l’être humain, dès le Prologue, à écrire son écobiographie. Entre soi (bios) et l’écriture (graphie), s’intercale donc le milieu naturel (oikos). Cette écriture biographique fondée écologiquement, « faite de chair et de souffles, de parfums et de textures », a pour tâche de démêler et d’expliciter les liens que les êtres humains partagent irrémédiablement avec leur milieu naturel.
Probing the geometry of the Laughlin state
Creators: name: Johri, Sonika
name: Papic, Z.
name: Schmitteckert, P.
name: Bhatt, R. N.
name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has recently been pointed out that phases of matter with intrinsic topological order, like the fractional quantum Hall states, have an extra dynamical degree of freedom that corresponds to quantum geometry. Here we perform extensive numerical studies of the geometric degree of freedom for the simplest example of fractional quantum Hall states -- the filling $ν=1/3$ Laughlin state. We perturb the system by a smooth, spatially dependent metric deformation and measure the response of the Hall fluid, finding it to be proportional to the Gaussian curvature of the metric. Further, we generalize the concept of coherent states to formulate the bulk off-diagonal long range order for the Laughlin state, and compute the deformations of the metric in the vicinity of the edge of the system. We introduce a "pair amplitude" operator and show that it can be used to numerically determine the intrinsic metric of the Laughlin state. These various probes are applied to several experimentally relevant settings that can expose the quantum geometry of the Laughlin state, in particular to systems with mass anisotropy and in the presence of an electric field gradient.
description: 26 pages, 15 figures; to appear in NJP focus issue on "Topological physics: from condensed matter to cold atoms and optics"
Stellar evolution in the outer Galaxy
Creators: name: Szczerba, Ryszard
name: Siódmiak, Natasza
name: Leśniewska, Aleksandra
name: Karska, Agata
name: Sewiło, Marta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the distribution of different classes of spectroscopically identified sources and theoretical models in the color-color diagrams (CCDs) combining the near-infrared (NIR) and mid-infrared (MIR) data to develop a method to classify Outer Galaxy sources detected with the Spitzer Space Telescope (hereafter Spitzer) SMOG survey in the IRAC 3.6 and 8.0 micrometer and MIPS 24 micrometer bands. We supplement the Spitzer data with the data from other satellite and ground-based surveys. The main goal of our study is to discover and characterize the population of intermediate- and low-mass young stellar objects (YSOs) in the Outer Galaxy and use it to study star formation in a significantly different environment than the Galaxy inside the solar circle. Since the YSOs can be confused with evolved stars in the MIR, these classes of objects need to be carefully separated. Here we present the initial results of our analysis using the Ks-[8.0] vs. Ks-[24] CCD as an example. The evolved stars separated from YSOs in the YSO selection process will be investigated in detail in the follow-up study.
description: 4 pages, 4 figure, to appear in the Proceedings of 11th Pacific Rim Conference on Stellar Astrophysics, Hong Kong
$\mathbb{Z}_{2}$ Topological Index for Continuous Photonic Materials
Creators: name: Silveirinha, Mario G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electronic topological insulators are one of the breakthroughs of the 21st century condensed matter physics. So far, the search for a light counterpart of an electronic topological insulator has remained elusive. This is due to the fundamentally different natures of light and matter and the different spins of photons and electrons. Here, it is shown that the theory of electronic topological insulators has a genuine analogue in the context of light wave propagation in time-reversal invariant continuous materials. We introduce a Gauge invariant $Z_2$ index that depends on the global properties of the photonic band structure and is robust to any continuous weak variation of the material parameters that preserves the time-reversal invariance. A nontrivial $Z_2$ index has two possible causes: (i) the lack of smoothness of the pseudo-Hamiltonian in the ${\bf{k}} \to \infty$ limit, and (ii) the entanglement between positive and negative frequency eigenmode branches. In particular, it is proven that electric-type plasmas and magnetic-type plasmas are topologically inequivalent for a fixed wave polarization. We propose a bulk-edge correspondence that links the number of edge modes with the topological invariants of two continuous bulk materials, and present detailed numerical examples that illustrate the application of the theory.
description: published in PHYSICAL REVIEW B 93, 075110 (2016)
The effect of cluster dynamical state on ram-pressure stripping
Creators: name: Lourenço, A. C. C.
name: Jaffé, Y. L.
name: Vulcani, B.
name: Biviano, A.
name: Poggianti, B.
name: Moretti, A.
name: Kelkar, K.
name: Crossett, J. P.
name: Gitti, M.
name: Smith, R.
name: Laganá, T. F.
name: Gullieuszik, M.
name: Ignesti, A.
name: McGee, S.
name: Wolter, A.
name: Sonkamble, S.
name: Müller, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Theoretical and observational studies have suggested that ram-pressure stripping by the intracluster medium can be enhanced during cluster interactions, boosting the formation of the "jellyfish" galaxies. In this work, we study the incidence of galaxies undergoing ram-pressure stripping in 52 clusters of different dynamical states. We use optical data from the WINGS/OmegaWINGS surveys and archival X-ray data to characterise the dynamical state of our cluster sample, applying eight different proxies. We then compute the number of ram-pressure stripping candidates relative to the infalling population of blue late-type galaxies within a fixed circular aperture in each cluster. We find no clear correlation between the fractions of ram-pressure stripping candidates and the different cluster dynamical state proxies considered. These fractions also show no apparent correlation with cluster mass. To construct a dynamical state classification closer to a merging "sequence", we perform a visual classification of the dynamical states of the clusters, combining information available in optical, X-ray, and radio wavelengths. We find a mild increase in the RPS fraction in interacting clusters with respect to all other classes (including post-mergers). This mild enhancement could hint at a short-lived enhanced ram-pressure stripping in ongoing cluster mergers. However, our results are not statistically significant due to the low galaxy numbers. We note this is the first homogeneous attempt to quantify the effect of cluster dynamical state on ram-pressure stripping using a large cluster sample, but even larger (especially wider) multi-wavelength surveys are needed to confirm the results.
description: 18 pages, 8 figures. Accepted for publication in MNRAS
On maximal hypersurfaces in Lorentz manifolds admitting a parallel lightlike vector field
Creators: name: Pelegrín, José A. S.
name: Romero, Alfonso
name: Rubio, Rafael M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C50, 53C42, 53C80

description: We study constant mean curvature spacelike hypersurfaces and in particular maximal hypersurfaces immersed in pp-wave spacetimes satisfying the timelike convergence condition. We prove the non-existence of compact spacelike hypersurfaces whose constant mean curvature is non-zero and also that every compact maximal hypersurface is totally geodesic. Moreover, we give an extension of the classical Calabi-Bernstein theorem to this class of pp-wave spacetimes.
BioWhere - Georeferencing New Zealand's Biota from Texts. NZGRC 2022.
Creators: name: Wijegunarathna, Kalana
name: Stock, Kristin
name: Jones, Christopher
name: Wilton, Aron
name: Procter, Jonathan
name: Morris, Hone
name: Medyckyj-Scott, David
name: Morgan, Fraser
name: Wieczorek, John
name: Whitehead, Brandon
Publisher: name: figshare
Year: 2022
Subjects: subject: 90903 Geospatial Information Systems
subject: FOS: Environmental engineering

description: BioWhere aims to develop techniques that can be harnessed to map large volumes of biota specimens from all over New Zealand and Antarctica. With over 12 million records, these specimens along with their locations are georeferenced textually, usually with complex natural language descriptions, across various scientific publications and specimen collections held by museums and other institutions. However, only a small fraction of these specimens has been mapped owing to the large volume of the data and the amount of labour the process of converting textual descriptions into coordinates demands. The challenge is amplified further due to the indefinite, vague nature of natural language used to textually describe the locations of these specimens. The automated tools currently in use fall short of effectively mapping the specimens because they rely on incomplete gazetteers and ignore spatial language. The BioWhere project will explore the latest techniques in natural language processing and develop methods that can effectively overcome the aforementioned shortcomings using computational georeferencing methods to translate human language descriptions of locations to geographical coordinates. Our machine learning models will incorporate environmental factors, linguistic context, and the characteristics of the named place in building a self-learning gazetteer. Incorporating physical, historical, and cultural context will enrich the gazetteer with Māori knowledge including the origin, narrative and meaning of Māori place names. This will unlock vast amounts of structured scientific knowledge that are currently inaccessible. Furthermore, methods developed in the project will find further applications in a range of domains including disaster response, cultural heritage, and health.
Dealing with Uncertainties in Asteroid Deflection Demonstration Missions: NEOTwIST
Creators: name: Eggl, Siegfried
name: Hestroffer, Daniel
name: Cano, Juan L.
name: Avila, Javier Martin
name: Drube, Line
name: Harris, Alan W.
name: Falke, Albert
name: Johann, Ulrich
name: Engel, Kilian
name: Schwartz, Stephen R.
name: Michel, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Deflection missions to near-Earth asteroids will encounter non-negligible uncertainties in the physical and orbital parameters of the target object. In order to reliably assess future impact threat mitigation operations such uncertainties have to be quantified and incorporated into the mission design. The implementation of deflection demonstration missions offers the great opportunity to test our current understanding of deflection relevant uncertainties and their consequences, e.g., regarding kinetic impacts on asteroid surfaces. In this contribution, we discuss the role of uncertainties in the NEOTwIST asteroid deflection demonstration concept, a low-cost kinetic impactor design elaborated in the framework of the NEOShield project. The aim of NEOTwIST is to change the spin state of a known and well characterized near-Earth object, in this case the asteroid (25143) Itokawa. Fast events such as the production of the impact crater and ejecta are studied via cube-sat chasers and a flyby vehicle. Long term changes, for instance, in the asteroid's spin and orbit, can be assessed using ground based observations. We find that such a mission can indeed provide valuable constraints on mitigation relevant parameters. Furthermore, the here proposed kinetic impact scenarios can be implemented within the next two decades without threatening Earth's safety.
description: Accepted for publication in the proceedings of the IAUS 318 - Asteroids: New Observations, New Models, held at the IAU General Assembly in Honolulu, Hawaii, USA 2015
Time-dependent two-level models and zero-area pulses
Creators: name: Lehto, Jaakko
name: Suominen, Kalle-Antti
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Time-dependent two-level models have been an important element in physics, and in particular in quantum optics since 1930's. We review the basics of these models and focus on the dynamics induced by off-resonant zero-area pulses by using a Sech-Tanh pulse model as an example. We show that the final transition probability for this model is described accurately by the Dykhne-Davis-Pechukas approach for certain parameter regions. Finally, we note the potential of such zero area pulse models in quantum control and quantum information.
description: 14 pages, 5 figures
Neurooncology: 2023 update
Creators: name: Mittelbronn, Michel Guy André
Publisher: name: Free Neuropathology
Year: 2023
Subjects: Neuro-oncology
Neuropathology
Brain tumors
Glioblastoma
Brain metastasis
Meningioma

description: This article presents some of the author’s neuropathological highlights in the field on neuro-oncology research encountered in 2022. Major advances were made in the development of more precise, faster, easier, less invasive and unbiased diagnostic tools ranging from immunohistochemical prediction of 1p/19q loss in diffuse glioma, methylation analyses in CSF samples, molecular profiling for CNS lymphoma, proteomic analyses of recurrent glioblastoma, integrated molecular diagnostics for better stratification in meningioma, intraoperative profiling making use of Raman effect or methylation analysis, to finally, the assessment of histological slides by means of machine learning for the prediction of molecular tumor features. In addition, as the discovery of a new tumor entity may also be a highlight for the neuropathology community, the newly described high-grade glioma with pleomorphic and pseudopapillary features (HPAP) has been selected for this article. Regarding new innovative treatment approaches, a drug screening platform for brain metastasis is presented. Although diagnostic speed and precision is steadily increasing, clinical prognosis for patients with malignant tumors affecting the nervous system remains largely unchanged over the last decade, therefore future neuro-oncological research focus should be put on how the amazing developments presented in this article can be more sustainably applied to positively impact patient prognosis.
description: Free Neuropathology, Bd. 4 (2023)
Gas hydrate stability and distribution in the fjords of western Spitsbergen, Svalbard archipelago. An assessment based on indirect hydrates indicators
Creators: name: Rodes, Nil
Publisher: name: Zenodo
Year: 2021
Subjects: Gas seepage
Gas flares
Hydrocarbon sources
Hydroacoustic mapping
Natural gas hydrates
Arctic fjord systems
Svalbard archipelago

description: This study evaluates the spatial and temporal variability of seepage detected in the main fjords of western Spitsbergen, Svalbard archipelago, as indirect hydrate indicators (geophysical attributes to the presence of gas or seepage) of the natural gas hydrate (NGH) distribution. While methane seepage and NGH distribution in the offshore provinces of Vestnesa Ridge on the continental slope west of Svalbard and Prins Karls Forland are extensively studied, their potential distribution in the Isfjorden and Van Mijenfjorden fjords is poorly constrained. 2D seismic interpretation enabled mapping the major stratigraphic units and structural elements of the fjords and further identifying the distribution of potential source rocks. We also recognized different migration pathways such as faults and igneous intrusions, presumably transporting the gas to the seabed. In addition, analysis of hydrographic datasets acquired in August 2015 and June 2021 allowed the quantification and description of gas flares in the fjords and the comparison of the gas system characteristics over the late spring and early autumn seasons. Overall, 796 flares (668 in Isfjorden and 115 in Van Mijenfjorden) have been identified in the echograms acquired in 2015, and 152 flares have been identified in Isfjorden in 2021. The observations revealed an active fluid flow system in the fjords with an evident spatio-temporal variability of the seepage. Furthermore, different morphologic expressions at the seafloor, such as pockmarks, have been spatially correlated with the flares, unveiling no direct association with the present-day seepage. Despite the achievements of this work, further efforts are needed to finally prove the presence of NGH in the fjords of the Svalbard archipelago. Besides, more work is needed to understand the relation between high flare activity areas and the atmospheric methane concentration anomalies to assess potential methane efflux (diffusion between the surface waters and the atmosphere), contributing to the atmospheric carbon pool.
description: Master thesis 2021 part of the Master Program for Polar and Marine Science (POMOR), by the Saint Petersburg State University and Hamburg University, in collaboration with Bremen University and The University Centre in Svalbard.
Effect of External Magnetic Field on the Co-existence of Superconductivity and Antiferromagnetism in rare Earth Nickle Borocarbides (RNi2B2C)
Creators: name: Das, Salila
name: Padhi, Prakash Chandra
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper we have studied the effect of external magnetic field in the co-existing phase of superconducting and anti-ferromagnetism of rare earth nickel borocarbides. The anti-ferromagnetism in these systems might have originated due to both localized 'f' electrons as well as itinerant electrons which are responsible for conduction. On the other hand, superconductivity is due to spin density wave, arising out of Fermi surface instability. The anti-ferromagnetism order is mostly influenced by hybridization of the 'f' electron with the conduction electron. Here we have obtained the dependence of superconducting energy gap as well as staggered magnetic field on temperature T and energy $ε_k$ in a framework based on mean field Hamiltonian using double time electron Green's function. We have shown in our calculation the effect of external magnetic field on superconducting and anti-ferromagnetic order parameter for $YNi_2B_2C$ in the presence of hybridization. The ratio of the calculated effective gap and $T_C$ is close to BCS value which agrees quite well with experimental results.
description: 18 pages, 2 figures. IJMBP Vol. 28 (2015)