cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Invest Risk Based Supervision
Creators: name: Martinovic, Maja
name: Martinovic, Maja
Publisher: name: Unknown
Year: 2010
Subjects: subject: Financial Economics
subject: supervision over private retirement insurance operations
subject: professional plans
subject: supervision based on risk assessment
subject: management of assets and liabilities of superannuation funds

description: After a significant number of plans sponsored by employers with defined benefit fell into crises due to incapacity to meet their contractual obligations and clear superannuation benefits agreed upon, the attention is increasingly being paid to the risk assessment based supervision. The supervision based on risk assessment is essentially based on the appraisal of synchronized management of assets and liabilities of pension funds. Supervision based on risk assessment implies determining the impacts of potential risks on the retirement plan in order to reduce and restrain them, which is provided by way of determining loss probabilities using financial indicators in the evaluation of diverse risks. The supervision based on risk evaluation is the basic prerequisite for keeping and justifying trust and confidence in private retirement insurance, necessary for protecting the members of superannuation funds from material loss, as well as for realizing the aims set in all the countries which have gone through pension reforms, but also for the ones that are about to carry them out.
Augmented Reality for Robot-Assisted Prostate Surgery
Creators: name: Kalia, Megha
Publisher: name: The University of British Columbia
Year: 2022

description: Megha Kalia, a UBC 3MT Semi-Finalist, presents their research on a new augmented reality system that utilizes MRI technology to help surgeons see inside the prostate, while performing surgery to remove tumours in prostate cancer patients. Megha Kalia is completing their PhD in Electrical and Computer Engineering under the supervision of Prof. Tim Salcudean.
Isomorphism rigidity in entropy rank two
Creators: name: Einsiedler, Manfred
name: Ward, Thomas
Publisher: name: arXiv
Year: 2003
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 22D40; 37A15; 52B11

description: We study the rigidity properties of a class of algebraic Z^3-actions with entropy rank two. For this class, conditions are found which force an invariant measure to be the Haar measure on an affine subset. This is applied to show isomorphism rigidity for such actions, and to provide examples of non-isomorphic Z^3-actions with all their Z^2-sub-actions isomorphic. The proofs use lexicographic half-space entropies and total ergodicity along critical directions.
description: 17 pages
Additional file 1 of Effects of a blend of Saccharomyces cerevisiae-based direct-fed microbial and fermentation products on plasma carbonyl-metabolome and fecal bacterial community of beef steers
Creators: name: Adeyemi, James
name: Sunday Peters
name: Donato, Marcos
name: Cervantes, Andres
name: Ibukun Ogunade
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 1: Table S1. Ingredient and chemical composition of the basal diet.
A Late Pleistocene Wetland Setting in the Arid Jurf ed Darawish Region in Central Jordan
Creators: name: Mischke, Steffen
name: Lai, Zhongping
name: Faershtein, Galina
name: Porat, Naomi
name: Röhl, Matthias
name: Braun, Paul
name: Kalbe, Johannes
name: Ginat, Hanan
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Southern Levant
subject: OSL dating
subject: granulometry analysis
subject: Ostracoda (Crustacea)
subject: human migration
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: Current conditions in the southern Levant are hyperarid, and local communities rely on fossil subsurface water resources. The timing of more favourable wetter periods and also their spatial characteristics are not yet well constrained. To improve our understanding of past climate and environmental conditions in the deserts of the southern Levant, sedimentary sections including artefact-bearing beds from Jurf ed Darawish on the Central Jordanian Plateau were investigated using sedimentological and micropalaeontological analyses and OSL dating. Grain-size analysis and structures of the clayey-silty sediments show that they mainly represent reworked loess deposits. The OSL ages suggest that these fine-grained sediments were accumulated during Marine Isotope Stages (MIS) 5-3. Recorded ostracod valves (mostly Potamocypris, Ilyocypris and Pseudocandona), remains of aquatic and terrestrial gastropod shells, and charophyte gyrogonites and stem encrustations indicate that an in-stream wetland existed at the location of Jurf ed Darawish during MIS 5-4 which was replaced by a vegetated alluvial plain in MIS 3. The prevailing aggradational setting was replaced by an erosional setting sometime after 30 ka. Abundant artefacts, distributed over a vertical range of up to 40 cm in a bed covered by a sedimentary sequence of 12-m thickness, provide evidence for the presence of humans in the region during a relatively long period from ca. 85 to 65 ka. The reconstruction of an in-stream wetland at Jurf ed Darawish, and the presence of humans at the site and in other desert regions of the Jordanian Plateau, the Wadi Arava/Araba, and the Negev and the Nefud deserts, show that the regional climate in the late MIS 5 and MIS 4 was significantly wetter than today and provided favourable conditions for humans in the Southern Levant and the northwestern Arabian Peninsula.
Understanding Risk Attitude- A Critical Success Factor for the Effectiveness of Risk Management
Creators: name: Carmen, Nadia
name: Carmen, Nadia
Publisher: name: Unknown
Year: 2007
Subjects: subject: Risk and Uncertainty
subject: Risk Management
subject: risk attitude
subject: decision-making
subject: sources of bias
subject: utility

description: Risk management is recognised as an essential contributor to business and project success, since it focuses on addressing uncertainties in a proactive manner in order to minimise threats, maximise opportunities, and optimise achievement of objectives. There is wide convergence and international consensus on the necessary elements for a risk management process, and this is supported by a growing range of capable tools and techniques, an accepted body of knowledge, an academic and research base, and wide experience of practical implementation across many industries. But the most significant critical success factor for effective risk management is the one most often lacking: an appropriate and mature risk culture. Research indicates that the attitude of individuals and organisations has a significant influence on whether risk management delivers what it promises. It is inherent in the nature of risk management for it to be exposed to sources of explicit and implicit bias, since all elements of the risk process are performed by individuals and groups of people whose risk attitudes affect every aspect of risk management. Risk attitudes exist at individual and group levels, and these can be assessed and described with some degree of accuracy. Sources of bias can also be diagnosed, exposing their influence on the risk process. It is important to understand risk attitudes and the impact they can have on the risk management process if their presence and influence are not recognised or managed. The paper intend to present the main characteristics of the risk attitude, the relation between risk attitude and effectiveness of risk management and what are the best tools for understanding risk attitude.
Restoring number conservation in quadratic bosonic Hamiltonians with dualities
Creators: name: Flynn, Vincent P.
name: Cobanera, Emilio
name: Viola, Lorenza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Number-non-conserving terms in quadratic bosonic Hamiltonians can induce unwanted dynamical instabilities. By exploiting the pseudo-Hermitian structure built in to these Hamiltonians, we show that as long as dynamical stability holds, one may always construct a non-trivial dual (unitarily equivalent) number-conserving quadratic bosonic Hamiltonian. We exemplify this construction for a gapped harmonic chain and a bosonic analogue to Kitaev's Majorana chain. Our duality may be used to identify local number-conserving models that approximate stable bosonic Hamiltonians without the need for parametric amplification and to implement non-Hermitian $\mathcal{P}\mathcal{T}$-symmetric dynamics in non-dissipative number-conserving bosonic systems. Implications for computing topological invariants are addressed.
description: 7 pages, 3 figures, uses epl2.cls
Druggable Allosteric Sites in β-Propeller Lectins
Creators: name: Shanina, Elena
name: Kuhaudomlarp, Sakonwan
name: Lal, Kanhaya
name: Seeberger, Peter H.
name: Imberty, Anne
name: Rademacher, Christoph
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: allostery
subject: carbohydrate–protein interactions
subject: drug discovery
subject: fragment-based drug design
subject: NMR spectroscopy
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Carbohydrate-binding proteins (lectins) are auspicious targets in drug discovery to combat antimicrobial resistance; however, their non-carbohydrate drug-like inhibitors are still unavailable. Here, we present a druggable pocket in a β-propeller lectin BambL from Burkholderia ambifaria as a potential target for allosteric inhibitors. This site was identified employing 19F NMR fragment screening and a computational pocket prediction algorithm SiteMap. The structure–activity relationship study revealed the most promising fragment with a dissociation constant of 0.3±0.1 mM and a ligand efficiency of 0.3 kcal mol−1 HA−1 that affected the orthosteric site. This effect was substantiated by site-directed mutagenesis in the orthosteric and secondary pockets. Future drug-discovery campaigns that aim to develop small molecule inhibitors can benefit from allosteric sites in lectins as a new therapeutic approach against antibiotic-resistant pathogens.
Cyathea mutica Domin 1929
Creators: name: Lehnert, Marcus
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Cyatheales
Cyatheaceae
Cyathea
Cyathea mutica

description: Key to the varieties of Cyathea mutica:
 1 Basal segments of medial pinnae free or only connected by a thin strand of green tissue, largest segments of medial pinnae strongly crenate to weakly lobed with pinnate venation....................................... Cyathea mutica var. grandis
 - All segments broadly adnate and contiguous, segments with entire margins and veins forked two to four times.................................................................................................................................................. Cyathea mutica var. mutica
description: Published as part of Lehnert, Marcus, 2012, A synopsis of the species of Cyathea (Cyatheaceae-Polypodiopsida) with pinnate to pinnate-pinnatifid fronds, pp. 17-36 in Phytotaxa 61 (1) on page 29, DOI: 10.11646/phytotaxa.61.1.2, http://zenodo.org/record/5061680
Spin lifetimes of electrons injected into GaAs and GaN
Creators: name: Krishnamurthy, S.
name: Newman, N.
name: van Schilfgaarde, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The spin relaxation time of electrons in GaAs and GaN are determined with a model that includes momentum scattering by phonons and ionized impurities, and spin scattering by the Elliot-Yafet, D'yakonov-Perel, and Bir-Aronov-Pikus mechanisms. Accurate bands generated using a long-range tight-binding Hamiltonian obtained from empirical pseudopotentials are used. The inferred temperature-dependence of the spin relaxation lifetime agrees well with measured values in GaAs. We further show that the spin lifetimes decrease rapidly with injected electrons energy and reach a local maximum at the longitudinal optical phonon energy. Our calculation predicts that electron spin lifetime in pure GaN is about 3 orders of magnitude longer than in GaAs at all temperatures, primarily as a result of the lower spin-orbit interaction and higher conduction band density of states.
description: 8 pages and 3 figures
Radio Emission as a Test of the Existence of Intermediate Mass Black Holes in Globular Clusters and Dwarf Spheroidal Galaxies
Creators: name: Maccarone, Thomas J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We take the established relation between black hole mass, X-ray luminosity, and radio luminosity and show that intermediate mass black holes, such as those predicted to exist at the centers of globular clusters, will be easily identifiable objects in deep radio observations. We show that the radio observations will be far more senstive than any possible X-ray observations. We also discuss the likely optical photometric and spectroscopic appearance of such systems in the event that radio detections are made.
description: 6 pages, no figures, accepted to MNRAS
Additional file 1 of Gold nanoparticle clusters for the investigation of therapeutic efficiency against prostate cancer under near-infrared irradiation
Creators: name: Jeonghun Kim
name: Chun, Sang
name: Lunjakorn Amornkitbamrung
name: Chanyoung Song
name: Yuk, Ji
name: Ahn, So
name: Kim, Byung
name: Lim, Yong
name: Byung-Keun Oh
name: Soong Um
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Figures S1 and S2. The zeta potential and absorbance spectrum of each nanomaterial. Figure S3. More explanation about the calculation of photothermal transduction efficiency. Figure S4. The materials stability in PBS. Figure S5. The fabrication and characterization of FITC-AuNC@SiO2. Figure S6. The cellular internalization of FITC-AuNC@SiO2. Figure S7. The cytotoxicity test. Figure S8. The PTT test.
Searching for kinematic evidence of Keplerian disks around Class 0 protostars with CALYPSO
Creators: name: Maret, S.
name: Maury, A. J.
name: Belloche, A.
name: Gaudel, M.
name: André, Ph.
name: Cabrit, S.
name: Codella, C.
name: Lefèvre, C.
name: Podio, L.
name: Anderl, S.
name: Gueth, F.
name: Hennebelle, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The formation of protoplanetary disks is not well understood. To understand how and when these disks are formed, it is crucial to characterize the kinematics of the youngest protostars at a high angular resolution. Here we study a sample of 16 Class 0 protostars to measure their rotation profile at scales from 50 to 500~au and search for Keplerian rotation. We used high-angular-resolution line observations obtained with the Plateau de Bure Interferometer as part of the CALYPSO large program. From $\mathrm{^{13}CO}$ ($J=2-1$), $\mathrm{C^{18}O}$ ($J=2-1$) and SO ($N_{j}=5_{6}-4_{5}$) moment maps, we find that seven sources show rotation about the jet axis at a few hundred au scales: SerpS-MM18, L1448-C, L1448-NB, L1527, NGC1333- IRAS2A, NGC1333-IRAS4B, and SVS13-B. We analyzed the kinematics of these sources in the $uv$ plane to derive the rotation profiles down to 50~au scales. We find evidence for Keplerian rotation in only two sources, L1527 and L1448-C. Overall, this suggests that Keplerian disks larger than 50 au are uncommon around Class 0 protostars. However, in some of the sources, the line emission could be optically thick and dominated by the envelope emission. Due to the optical thickness of these envelopes, some of the disks could have remained undetected in our observations.
description: Accepted for publication in Astronomy & Astrophysics
title: A Bayesian network for evaluation of setting and reaching the targets of the Water Framework Directive
Creators: name: Fernandes, Jose A.
name: Kauppila, Pirkko
name: Uusitalo, Laura
name: Fleming-Lehtinen, Vivi
name: Kuikka, Sakari
name: Pitkänen, Heikki
Publisher: name: ASC 2013 - Theme session Q
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.This work describes the development of the EU Water Framework Directive central water quality elements from 1970 to 2010 in the Gulf of Finland, a eutrophied sub-basin of the Baltic Sea. The likelihood of accomplishing the management objectives simultaneously is assessed using Bayesian networks. The objectives of good ecological status in summer-time nutrient concentration, chlorophyll a concentration and Secchi depth are not met at present and it is unlikely for them to be achieved in the near future, despite the decreasing trend in nutrient concentrations last years. It was demonstrated that neither phosphorus nor nitrogen alone controls summer-time plankton growth. Reaching good ecological status in nutrients does not necessarily lead to good ecological status of chlorophyll-a, even though a dependency between the parameters does exist. In addition, Secchi depth status is strongly related to chlorophyll-a status in three of the four study-areas.
Strategic Intent
Creators: name: Dordevic, Branislav
name: Dordevic, Branislav
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Strategic intent is one of the three essential elements of strategy formulation process. Strategic intent interacts with strategic assessment and strategic choice in the thinking process from which strategies emerge. Strategic intent is particularly concerned with the purpose of the enterprise and hence the ends of strategies. Strategic intent may be seen as the apex of pyramide of purpose. Strategic intent describes what the enterprise means to become in the future. Strategic intent will outline the unique vision of the enterprise in the future and set goals to be achieved. The strategy formulation process, leaders, stakeholders, and contex all influence strategic intent. Strategic intent depends on differening aspirations of stakeholder groups, particularly the most powreful. Strategic intent may also be influenced by the history of the enterprise and its ownership structure. The strategy formulation process must concern itself with the fundamental purposes for witch the enterprise exists. The purposes nearly always include the need for survival and to make a profit. Most business also aim for growth and to provide their shareholders with value. Great enterprises need a greater strategic intent than just making money.
Minimal SUSY SO(10), b-$τ$ unification and large neutrino mixings
Creators: name: Goh, H. S.
name: Mohapatra, R. N.
name: Ng, Siew-Phang
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the assumption of type II seesaw mechanism for small neutrino masses coupled with $b-τ$ mass unification in a minimal SUSY SO(10) model leads not only to a natural understanding of large atmospheric mixing angle ($θ_{23}$) among neutrinos, as recently pointed out, but also to large solar angle ($θ_{12}$) and a small $θ_{13}\equiv U_{e3}$ as required to fit observations. This is therefore a minimal, completely realistic grand unified model for all low energy observations that naturally explains the diverse mixing patterns between the quark and leptons without any additional inputs such as extra global symmetries. The proposed long baseline neutrino experiments will provide a crucial test of this model since it predicts $U_{e3}\simeq 0.16$ for the allowed range of parameters.
description: 15 pages, latex, 3 figures, UMD-PP-03-039
Full-Vectorial Mode Coupling in Optical Fibers
Creators: name: Fang, Liang
name: Wang, Jian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical full vectorial modes have closely attracted much attention because of their unique optical features and thus may develop the fundamental researches and new functionalities of light. Beyond the conventional linear polarization modal coupling, we thoroughly investigate the inherent polarizationdependence and polarization-isolation features for full vectorial mode coupling in optical fibers, as well as the coupling crosstalk in view of the modal degeneracy. We present the general full vectorial coupling mechanism and numerically simulate the full vectorial mode coupling for both fiber directional and grating assisted coupling cases. Furthermore, we give the detailed analyses of coupling crosstalk based on the unified threemode coupling model. Apart from lifting the modal degeneracy, significantly, the crosstalk can also be reduced by weakening the coupling coefficient and meanwhile increasing the coupling length. This extended full vectorial mode coupling mechanismmay provide theoretical guidance on exploiting new all fiberbased polarization-sensitive passive elements to control fullvectorial fields and modal polarization states.
Subsystem symmetry enriched topological order in three dimensions
Creators: name: Stephen, David T.
name: Garre-Rubio, José
name: Dua, Arpit
name: Williamson, Dominic J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a model of three-dimensional (3D) topological order enriched by planar subsystem symmetries. The model is constructed starting from the 3D toric code, whose ground state can be viewed as an equal-weight superposition of two-dimensional (2D) membrane coverings. We then decorate those membranes with 2D cluster states possessing symmetry-protected topological order under line-like subsystem symmetries. This endows the decorated model with planar subsystem symmetries under which the loop-like excitations of the toric code fractionalize, resulting in an extensive degeneracy per unit length of the excitation. We also show that the value of the topological entanglement entropy is larger than that of the toric code for certain bipartitions due to the subsystem symmetry enrichment. Our model can be obtained by gauging the global symmetry of a short-range entangled model which has symmetry-protected topological order coming from an interplay of global and subsystem symmetries. We study the non-trivial action of the symmetries on boundary of this model, uncovering a mixed boundary anomaly between global and subsystem symmetries. To further study this interplay, we consider gauging several different subgroups of the total symmetry. The resulting network of models, which includes models with fracton topological order, showcases more of the possible types of subsystem symmetry enrichment that can occur in 3D.
description: 21 pages. v2: Published version. Updated Section IV with new figure and table
Dynamical CPA approach to an itinerant fermionic spin glass model
Creators: name: Bechmann, M.
name: Oppermann, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a fermionic version of the Sherrington-Kirkpatrick model including nearest-neighbor hopping on a $\infty$-dimensional simple cubic lattices. The problem is reduced to one of free fermions moving in a dynamical effective random medium. By means of a CPA method we derive a set of self-consistency equations for the spin glass order parameter and for the Fourier components of the local spin susceptibility. In order to solve these equations numerically we employ an approximation scheme which restricts the dynamics to a feasible number of the leading Fourier components. From a sequence of systematically improved dynamical approximations we estimate the location of the quantum critical point.
description: 9 pages, 6 figures, revised version
Ecrobia ventrosa
Creators: name: Bouchard, Blanche
name: Wesselingh, Frank P.
name: Pouwer, Ronald
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Hydrobiidae
Ecrobia
Ecrobia ventrosa

description: Ecrobia cf. ventrosa (Montagu, 1803) (Fig. 9C 1-C 3)
cf. Turbo ventrosus Montagu, 1803: 317, pl. 12, fig. 13.
cf.? Peringia ulvae – Harmer 1922: 873, pl. 65, fig. 27.
cf. Hydrobia ventrosa – Fretter & Graham 1978: 125, fig. 114.
cf. Ecrobia ventrosa – Hoeksema & Raad 2015: 25, fig. 2.
cf. Ecrobia cf. ventrosa – Símonarson & Eiríksson in Eiriksson & Símonarson 2021: 256, pl. 7.2, fig. 8.
MATERIAL AND DIMENSIONS. — Maximum height 1.5 mm, width 0.8 mm. — RGM.1365261 (1), leg. ACJ.
SPECIES CHARACTERISATION. — Thin shelled hydrobiid with marked convex whorl profile and relatively deep suture; aperture rounded. The specimen at hand suffers from corrosion of the outer shell layer, hence its uncertain attribution.
DISTRIBUTION. — Lower Pliocene: Iceland (Símonarson et al. 2021). — Upper Pliocene: NSB, Red Crag, England (Hoeksema & Raad 2015). — Lower Pleistocene: Maassluis Formation, Netherlands (RGM collection); Atlantic, Selsoif, NW France (this paper). — Pleistocene and Holocene (indeterminate): NSB, Netherlands (Hoeksema & Raad 2015). Today it occurs along the European coasts from Norway and the Baltic to the Mediterranean and Black Sea (Fretter & Graham 1978).
description: Published as part of Bouchard, Blanche, Wesselingh, Frank P., Pouwer, Ronald & Landau, Bernard, 2025, The Gelasian gastropod fauna of Selsoif (Manche, France), pp. 39-91 in Geodiversitas 47 (3) on page 62, DOI: 10.5252/geodiversitas2025v47a3, http://zenodo.org/record/14823602
Moravcsik's theorem on complete sets of polarization observables reexamined
Creators: name: Wunderlich, Y.
name: Kroenert, P.
name: Afzal, F.
name: Thiel, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We revisit Moravcsik's theorem on the unique extraction of amplitudes from polarization observables, which has been originally published in 1985. The proof is (re-) written in a more formal and detailed way and the theorem is corrected for the special case of an odd number of amplitudes (this case was treated incorrectly in the original publication). Moravcsik's theorem, in the modified form, can be applied in principle to the extraction of an arbitrary number of $N$ helicity amplitudes. The uniqueness theorem is then applied to hadronic reactions involving particles with spin. The most basic example is Pion-Nucleon scattering ($N=2$), the first non-trivial example is pseudoscalar meson photoproduction ($N=4$) and the most technically involved case treated here is given by pseudoscalar meson electroproduction ($N=6$). The application of Moravcsik's theorem to electroproduction yields new results, which for the first time provide insights into the structure and content of complete sets for this particular process. The uniqueness-statements for the various reactions are compared and an attempt is made to recognize general patterns, which emerge under the application of the theorem.
description: 35 pages, 12 figures; Version 2 has been accepted for publication in Phys. Rev. C
Entanglement for a two-parameter class of states in $2\otimes n$ quantum system
Creators: name: Chi, Dong Pyo
name: Lee, Soojoon
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We exhibit a two-parameter class of states $ρ_{(α,γ)}$, in $2\otimes n$ quantum system for $n\ge 3$, which can be obtained from an arbitrary state by means of local quantum operations and classical communication, and which are invariant under all bilateral %unitary operations %of the form $U\otimes U$ on $2\otimes n$ quantum system. We calculate the negativity of $ρ_{(α,γ)}$, and a lower bound and a tight upper bound on its entanglement of formation. It follows from this calculation that the entanglement of formation of $ρ_{(α,γ)}$ cannot exceed its negativity.
description: 10 pages, including 4 figures, accepted for publication in J. Phys. A
Finiteness of $z$-classes in reductive groups
Creators: name: Garge, Shripad M.
name: Singh, Anupam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $k$ be a perfect field such that for every $n$ there are only finitely many field extensions, up to isomorphism, of $k$ of degree $n$. If $G$ is a reductive algebraic group defined over $k$, whose characteristic is very good for $G$, then we prove that $G(k)$ has only finitely many $z$-classes. For each perfect field $k$ which does not have the above finiteness property we show that there exist groups $G$ over $k$ such that $G(k)$ has infinitely many $z$-classes.
All-fiber polarization-manageable directional couplers
Creators: name: Fang, Liang
name: Wang, Jian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Flexible management of light polarization is necessary to develop the technologies of optical fiber communications. However, it is still a great challenge to manipulate optical polarization in all-fiberbased devices. Here we present a novel structural design of three-core fiber couplers to create arbitrary polarization management by embedding a vector mode segregated core within the conventional fiber couplers. We take advantages of these coupling structures to achieve polarization split, rotation, and exchange, as three essential polarization managements for fiber-guided modes. We study these couplers based on coupled-mode theory and numerically simulations. The obtained results show that they manifest favorable operation performance on management of the fiber modal polarization states. Compared to previous couplers used for management of power, wavelengths and modal forms, this kind of fiber couplers introduces a new manageable degree of freedom for modal polarization. It is expected that the presented all-fiber polarization-manageable directional couplers might find potential applications in fiber optical communications and sensing systems.
Optimizing quantum dynamics in the age of machine learning
Creators: name: Sauvage, Frederic
Publisher: name: Imperial College London
Year: 2021

description: Optimizing the dynamics of quantum systems enables the design of high precision experiments and the development of quantum technologies. To date, such optimizations have been predominantly performed based on theoretical models and numerical simulations; given the size and intricacy of the systems that can now be controlled, this approach is reaching its limits. Optimizing dynamics based solely on experimental data provides a mean to exceed these limitations. However, the probabilistic nature of quantum measurements, combined with the relatively low repetition rates and high noise levels in many current experiments, render these optimizations uniquely difficult. Inspired by recent developments in the field of machine learning, we develop new methods for the efficient optimization of quantum dynamics in experimental situations. First, we establish Bayesian optimization as a methodology well suited for these optimization problems. After thoroughly assessing its benefit on a paradigm problem of quantum optimal control, we refine the original framework to take into consideration the statistical features of quantum measurements. This allows to maximize the utility of each measurement data and results in enhanced convergence of the framework. Going further, we investigate an aspect of optimization often ignored, namely the choice of the figure of merit. This figure, which for any optimization problem is identified as the quantity to be maximized, is not unique, thus leaving room for its refinement. After establishing criteria for adequate figures of merit, we show that improved figures, compared to several canonical ones, can be designed. Finally, to fully reap the benefits of experimental optimizations, it is often desirable that not only one but many related optimizations are performed concurrently. To this intent, we propose two novel frameworks which are found to yield substantial improvements compared to existing methodologies.
Housing Poverty in Rural Areas Greater for Racial and Ethnic Minorities
Creators: name: Whitener, Leslie A.
name: Whitener, Leslie A.
Publisher: name: Unknown
Year: 2000
Subjects: Consumer/Household Economics
Food Security and Poverty

description: Despite the higher prevalence of housing poverty in central cities, 4 million households in nonmetro areas were classified as housing poor based on a new multidimensional measure of housing disadvantage. Nonmetro Hispanic, Black, and other minority households were more likely than their White counterparts to be in housing poverty. But the dimensions of poverty operate differently for these groups. Housing quality was a more important factor in determining housing poverty for minority households, while economic need was the most important indicator for White households. Crowding was a particularly salient issue for nonmetro Hispanics.
Reflected fractional Brownian motion in one and higher dimensions
Creators: name: Vojta, Thomas
name: Halladay, Samuel
name: Skinner, Sarah
name: Janušonis, Skirmantas
name: Guggenberger, Tobias
name: Metzler, Ralf
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Fractional Brownian motion (FBM), a non-Markovian self-similar Gaussian stochastic process with long-ranged correlations, represents a widely applied, paradigmatic mathematical model of anomalous diffusion. We report the results of large-scale computer simulations of FBM in one, two, and three dimensions in the presence of reflecting boundaries that confine the motion to finite regions in space. Generalizing earlier results for finite and semi-infinite one-dimensional intervals, we observe that the interplay between the long-time correlations of FBM and the reflecting boundaries leads to striking deviations of the stationary probability density from the uniform density found for normal diffusion. Particles accumulate at the boundaries for superdiffusive FBM while their density is depleted at the boundaries for subdiffusion. Specifically, the probability density $P$ develops a power-law singularity, $P\sim r^κ$, as function of the distance $r$ from the wall. We determine the exponent $κ$ as function of the dimensionality, the confining geometry, and the anomalous diffusion exponent $α$ of the FBM. We also discuss implications of our results, including an application to modeling serotonergic fiber density patterns in vertebrate brains.
description: 14 pages, 20 figures included, final version as published
Cyathea uleana Lehnert 2011
Creators: name: Lehnert, Marcus
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Cyatheales
Cyatheaceae
Cyathea
Cyathea uleana

description: Cyathea uleana (Sampaio 1923: 65) Lehnert (2011b: 43)
 Distribution and habitat: — Colombia, Ecuador, Peru, Brazil and Bolivia.
description: Published as part of Lehnert, Marcus, 2012, A synopsis of the species of Cyathea (Cyatheaceae-Polypodiopsida) with pinnate to pinnate-pinnatifid fronds, pp. 17-36 in Phytotaxa 61 (1) on page 32, DOI: 10.11646/phytotaxa.61.1.2, http://zenodo.org/record/5061680
Removal of fluoride ion from drinking water by a new Fe(OH)3/ nano CaO impregnated chitosan composite adsorbent
Creators: name: Sengupta, Priyanka
name: Suparna Saha
name: Suchetana Banerjee
name: Dey, Ayan
name: Priyabrata Sarkar
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Pharmacology
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: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: A novel adsorbent made of freshly obtained calcium oxide nanoparticles and ferric hydroxide dispersed in chitosan matrix (CHI-FCA) was prepared. Batch adsorption study was performed to analyze the effect of initial concentration, contact time, pH, and adsorbent dose on fluoride sorption on CHI-FCA. It was observed that maximum fluoride adsorption was achieved at pH 7.10 at an optimum equilibrium contact time of 180 min with an adsorbent dose of 8 g/L. Moreover, a synergistic effect was observed for fluoride remediation from aqueous medium. FTIR, XRD, DLS, TGA, DTA, and ESEM with EDX analysis were performed for the investigation reported here.
Peringia ulvae
Creators: name: Bouchard, Blanche
name: Wesselingh, Frank P.
name: Pouwer, Ronald
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Hydrobiidae
Peringia
Peringia ulvae

description: Peringia ulvae (Pennant, 1777)
(Fig. 9D 1-D 3)
Turbo ulvae Pennant, 1777: 132, pl. 86, fig. 120.
Paludestrina ulvae – Wood 1848: 71, pl. 4, fig. 23.
Peringia ulvae – Harmer 1925: 873, pl. 65, fig. 27. — Fretter & Graham 1978: 122, fig. 113. — Hoeksema & Raad 2015: 25, fig. 1.
Hydrobia ulvae – Van Regteren Altena et al. 1954: 12, pl. 3, fig. 32. — Símonarson & Eiríksson in Eiriksson & Símonarson 2021: 255, pl. 7.2, fig. 7.
MATERIAL AND DIMENSIONS. — Maximum height 2.1 mm, width 1.1 mm. — RGM.1364993 (10), leg. ACJ; RGM.1365198 (1), leg. ACJ; RGM.1365202 (200+), leg. AWJ.
SPECIES CHARACTERISATION. — Smooth, solid, fusiform shell with regularly conical spire. Five flat teleoconch whorls separated by shallow suture. High base; pyriform aperture.
DISTRIBUTION. — Lower Pliocene: NSB, Coralline Crag, England (Wood 1848), Iceland (Símonarson et al. 2021). — Upper Pliocene: NSB, Red Crag, England (Harmer 1925; Norton 1967). — Lower Pleistocene: Atlantic, England (Harmer 1925), Selsoif,NW France (this paper). — Upper Pleistocene to Holocene: NSB, England (Harmer 1925), Netherlands (Van Regteren Altena et al. 1954; Hoeksema & Raad 2015). Today, this species occurs in the eastern Atlantic from northern Norway (Bank & Neubert 2020), along the coast of Europe to Senegal (Fretter & Graham 1978), it enters the Mediterranean and extends into the Aegean Sea (Öztürk et al. 2014) and Baltic Sea (Kedra 2010).
description: Published as part of Bouchard, Blanche, Wesselingh, Frank P., Pouwer, Ronald & Landau, Bernard, 2025, The Gelasian gastropod fauna of Selsoif (Manche, France), pp. 39-91 in Geodiversitas 47 (3) on pages 62-64, DOI: 10.5252/geodiversitas2025v47a3, http://zenodo.org/record/14823602
Direct Loans Open Doors to Rural Homeownership
Creators: name: Wallace, George
name: Ghelfi, Linda
name: Mikesell, James
name: Whitener, Leslie
name: Wallace, George
name: Ghelfi, Linda
name: Mikesell, James
name: Whitener, Leslie
Publisher: name: Unknown
Year: 2000
Subjects: Community/Rural/Urban Development
Financial Economics

description: USDA's Section 502 Single Family Direct Loan Program provides subsidized housing loans to very low- and low-income rural residents who are without adequate housing and cannot obtain credit from other sources. An ERS survey of recent Section 502 borrowers finds that they are typically under 40, in families with children, and first-time homebuyers. Most of them believed that their current home and neighborhood are better than their previous ones and that, without assistance from the program, they would not have been able to afford a comparable home for at least 2 years, if ever.
Dynamical Casimir-Polder energy between an excited and a ground-state atom
Creators: name: Rizzuto, L.
name: Passante, R.
name: Persico, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the Casimir-Polder interaction between two atoms, one in the ground state and the other in its excited state. The interaction is time-dependent for this system, because of the dynamical self-dressing and the spontaneous decay of the excited atom. We calculate the dynamical Casimir-Polder potential between the two atoms using an effective Hamiltonian approach. The results obtained and their physical meaning are discussed and compared with previous results based on a time-independent approach which uses a non-normalizable dressed state for the excited atom.
description: 11 pages
Local Housing Policy: The Small-Town Myth and Economic Development
Creators: name: Ziebarth, Ann
name: Ziebarth, Ann
Publisher: name: Unknown
Year: 2000
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development

description: Changes in the rural economy are challenging small-town identity. Local communities are encouraging economic development and population growth while struggling to maintain "rural character." These efforts frequently foster policies -such as the banning of mobile homes, zoning requirements for large lots, enforcement of building codes, and barriers to the provision of multifamily rental housing-that result in higher consumer housing costs. Such policies reduce housing options for community newcomers and those with lower incomes, often with the unintended consequence of restricting economic development. This article examines ways in which economic restructuring has affected local housing conditions and policies in one Minnesota community.
Using social and behavioural science to support COVID-19 pandemic response
Creators: name: Van Bavel, Jay Joseph
name: Baicker, Katherine
name: Boggio, Paulo
name: Capraro, Valerio
name: Cichocka, Aleksandra
name: Crockett, Molly
name: Cikara, Mina
name: Crum, Alia
name: Douglas, Karen
name: Druckman, James
name: Drury, John
name: Oeindrila Dube
name: Ellemers, Naomi
name: Finkel, Eli J
name: Fowler, James
name: MIchele Gelfand
name: Shihui Han
name: S Alex Haslam
name: Jetten, Jolanda
name: Kitayama, Shinobu
name: Mobbs, Dean
name: Napper, Lucy E
name: Packer, Dominic
name: Pennycook, Gordon
name: Peters, Ellen
name: Petty, Richard
name: Rand, David Gertler
name: Reicher, Steve
name: Schnall, Simone
name: Shariff, Azim
name: Smith, Sandra Sandra
name: Skitka, Linda
name: Sunstein, Cass R
name: Tabri, Nassim
name: Tucker, Joshua A
name: Van Der Linden, Sander
name: Van Lange, Paul
name: Weeden, Kim
name: Wohl, Michael Jeremy Adam
name: Zaki, Jamil
name: Zion, Sean
name: Willer, Robb
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: The COVID-19 pandemic represents a massive global health crisis. Because the crisis requires large-scale behaviour change and places significant psychological burdens on individuals, insights from the social and behavioural sciences can be used to help align human behaviour with the recommendations of epidemiologists and public health experts. Here we discuss evidence from a selection of research topics relevant to pandemics, including work on navigating threats, social and cultural influences on behaviour, science communication, moral decision-making, leadership, and stress and coping. In each section, we note the nature and quality of prior research, including uncertainty and unsettled issues. We identify several insights for effective response to the COVID-19 pandemic and highlight important gaps researchers should move quickly to fill in the coming weeks and months.
A Study of Cosmic Ray Secondaries Induced by the Mir Space Station Using AMS-01
Creators: name: 01 Collaboration
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Alpha Magnetic Spectrometer (AMS-02) is a high energy particle physics experiment that will study cosmic rays in the $\sim 100 \mathrm{MeV}$ to $1 \mathrm{TeV}$ range and will be installed on the International Space Station (ISS) for at least 3 years. A first version of AMS-02, AMS-01, flew aboard the space shuttle \emph{Discovery} from June 2 to June 12, 1998, and collected $10^8$ cosmic ray triggers. Part of the \emph{Mir} space station was within the AMS-01 field of view during the four day \emph{Mir} docking phase of this flight. We have reconstructed an image of this part of the \emph{Mir} space station using secondary $π^-$ and $μ^-$ emissions from primary cosmic rays interacting with \emph{Mir}. This is the first time this reconstruction was performed in AMS-01, and it is important for understanding potential backgrounds during the 3 year AMS-02 mission.
description: To be submitted to NIM B Added material requested by referee. Minor stylistic and grammer changes
Revisiting the Late-Time Growth of Single-mode Rayleigh-Taylor Instability and the Role of Vorticity
Creators: name: Bian, Xin
name: Aluie, Hussein
name: Zhao, Dongxiao
name: Zhang, Huasen
name: Livescu, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Growth of the single-fluid single-mode Rayleigh-Taylor instability (RTI) is revisited in 2D and 3D using fully compressible high-resolution simulations. We conduct a systematic analysis of the effects of perturbation Reynolds number ($Re_p$) and Atwood number ($A$) on RTI's late-time growth. Contrary to the common belief that single-mode RTI reaches a terminal bubble velocity, we show that the bubble re-accelerates when $Re_p$ is sufficiently large, consistent with [Ramaparabhu et al. 2006, Wei and Livescu 2012]. However, unlike in [Ramaparabhu et al. 2006], we find that for a sufficiently high $Re_p$, the bubble's late-time acceleration is persistent and does not vanish. Analysis of vorticity dynamics shows a clear correlation between vortices inside the bubble and re-acceleration. Due to symmetry around the bubble and spike (vertical) axes, the self-propagation velocity of vortices points in the vertical direction. If viscosity is sufficiently small, the vortices persist long enough to enter the bubble tip and accelerate the bubble [Wei and Livescu 2012]. A similar effect has also been observed in ablative RTI [Betti and Sanz 2006]. As the spike growth increases relative to that of the bubble at higher $A$, vorticity production shifts downward, away from the centerline and toward the spike tip. We modify the Betti-Sanz model for bubble velocity by introducing a vorticity efficiency factor $η=0.45$ to accurately account for re-acceleration caused by vorticity in the bubble tip. It had been previously suggested that vorticity generation and the associated bubble re-acceleration are suppressed at high $A$. However, we present evidence that if the large $Re_p$ limit is taken first, bubble re-acceleration is still possible. Our results also show that re-acceleration is much easier to occur in 3D than 2D, requiring smaller $Re_p$ thresholds.