cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Research in Food Economics: past trends and new challenges
Creators: name: IRZ, Xavier
name: MAZZOCCHI, Mario
name: REQUILLART, Vincent
name: SOLER, Louis-Georges
name: IRZ, Xavier
name: MAZZOCCHI, Mario
name: REQUILLART, Vincent
name: SOLER, Louis-Georges
Publisher: name: Unknown
Year: 106
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: price transmission, market power, food quality, vertical integration, safety, health

description: Over the past 30 years, food chains in Europe have undergone a dramatic transformation resulting from technological, economic and other societal changes. In turn, this evolution has opened multiple new areas of research for food economists, and this review attempts to summarise major developments in the field by focusing on four salient topics: (i) the formation of retail food prices in the context of rising concentration in the food chain; (ii) the continuous process of differentiation of the goods exchanged on food markets, and concurrent decline in the importance of commodity markets; (iii) the issue of consumer trust in the safety of the goods supplied by the food chain, following several food scares; and (iv) the problem of the growing burden of diet-related chronic diseases. After summarising the main methodological and empirical contributions in the analysis of those issues, we conclude by identifying gaps in knowledge and unanswered questions which food economists may want to turn their attention to in the coming years.
Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins – implications for sequence stratigraphy and paleoenvironmental interpretation
Creators: name: Besen, Richard M.
name: Struck, Ulrich
name: Seibertz, Ekbert
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: foraminiferal fauna
subject: Lower Saxony Cretaceous sub-basins
subject: paleoenvironmental interpretation
subject: 500 Naturwissenschaften und Mathematik::560 Fossilien, Paläontologie::560 Paläontologie, Paläozoologie

description: Albian to Turonian carbonate deposits at three different locations of the Lower Saxony Cretaceous and thereby of the European mid-Cretaceous epeiric shelf sea were investigated for their fossil agglutinated foraminiferal fauna. In this study, 71 samples from two quarries and three drill cores were treated with formic acid, which enabled the study of agglutinated foraminiferal assemblages even in highly lithified limestones. In total, 114 species were determined and classified as belonging to nine morphogroups. In general, four agglutinated foraminiferal assemblages are distinguished: (1) an uppermost Albian–lowermost Cenomanian assemblage from the Wunstorf drill cores, with the dominant taxa Bathysiphon spp., Nothia spp., Psammosphaera fusca, Reophax subfusiformis, Bulbobaculites problematicus, Tritaxia tricarinata, Flourensina intermedia, Vialovella frankei, Arenobulimina truncata, and Voloshinoides advenus; (2) a Cenomanian assemblage from the Baddeckenstedt quarry and Wunstorf drill cores, with Ammolagena clavata, Tritaxia tricarinata, Vialovella frankei, Arenobulimina truncata, and Voloshinoides advenus; (3) an assemblage related to the Cenomanian–Turonian Boundary Event in Wunstorf and Söhlde dominated by Bulbobaculites problematicus; and (4) a Turonian assemblage in the Wunstorf and Söhlde sections with high numbers of Ammolagena contorta, Repmanina charoides, Bulbobaculites problematicus, Gerochammina stanislawi, and Spiroplectammina navarroana. The latest Albian–earliest Cenomanian assemblage consists of tubular, globular, and elongate foraminiferal morphogroups which are typical for the low- to mid-latitude slope biofacies. All other assemblages are composed of elongate foraminiferal morphogroups with additionally globular forms in the proximal settings of Baddeckenstedt and Söhlde or flattened planispiral and streptospiral forms in more distal settings of Wunstorf. For these assemblages, a new agglutinated foraminiferal biofacies named “mid-latitude shelf biofacies” is proposed herein. Changes in the relative abundance of different morphogroups can often be referred to single features of depositional sequences. Furthermore, classical macro-bioevents, which are often depositional-related, of the Lower Saxony Cretaceous seem to have a micro-bioevent or acme equivalent of the agglutinated foraminiferal fauna.
Quantifying quantum speedups: improved classical simulation from tighter magic monotones
Creators: name: Seddon, James R.
name: Regula, Bartosz
name: Pashayan, Hakop
name: Ouyang, Yingkai
name: Campbell, Earl T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Consumption of magic states promotes the stabilizer model of computation to universal quantum computation. Here, we propose three different classical algorithms for simulating such universal quantum circuits, and characterize them by establishing precise connections with a family of magic monotones. Our first simulator introduces a new class of quasiprobability distributions and connects its runtime to a generalized notion of negativity. We prove that this algorithm has significantly improved exponential scaling compared to all prior quasiprobability simulators for qubits. Our second simulator is a new variant of the stabilizer-rank simulation algorithm, extended to work with mixed states and with significantly improved runtime bounds. Our third simulator trades precision for speed by discarding negative quasiprobabilities. We connect each algorithm's performance to a corresponding magic monotone and, by comprehensively characterizing the monotones, we obtain a precise understanding of the simulation runtime and error bounds. Our analysis reveals a deep connection between all three seemingly unrelated simulation techniques and their associated monotones. For tensor products of single-qubit states, we prove that our monotones are all equal to each other, multiplicative and efficiently computable, allowing us to make clear-cut comparisons of the simulators' performance scaling. Furthermore, our monotones establish several asymptotic and non-asymptotic bounds on state interconversion and distillation rates. Beyond the theory of magic states, our classical simulators can be adapted to other resource theories under certain axioms, which we demonstrate through an explicit application to the theory of quantum coherence.
description: 24+13 pages, 8 figures; final author copy. Since v1: restructured with additional discussion, proof sketches and examples. Since v3: minor revisions to improve clarity, additional acknowledgments
DNA metabarcoding of zooplankton enhances community-level analyses of connectivity in a marine pelagic environment (PhD Dissertation).
Creators: name: Ashrenee Govender
Publisher: name: figshare
Year: 2021
Subjects: subject: 70405 Fish Physiology and Genetics
subject: FOS: Agriculture, forestry and fisheries
subject: 60499 Genetics not elsewhere classified
subject: FOS: Biological sciences
subject: 60411 Population, Ecological and Evolutionary Genetics

description: Zooplankton are abundant and diverse marine organisms that form ecologically important communities in marine pelagic ecosystems. They are well-suited for biomonitoring of ecosystem health and changes in biodiversity because their community structure and biomass respond rapidly to environmental variation. Biomonitoring of zooplankton communities using traditional morphology-based species identification methods is labor-intensive due to their cryptic morphology, high diversity and small body size. Fast-developing molecular techniques such as DNA metabarcoding (large-scale, high-throughput DNA sequencing of targeted gene regions to simultaneously identify multiple species present in samples) may provide higher resolution, accurate, faster and more cost-effective biomonitoring tools. The primary objectives of this dissertation were to develop and test a novel DNA metabarcoding approach for biomonitoring of marine zooplankton over the continental shelf of eastern South Africa. Novel taxon-specific DNA mini-barcode primers were designed to increase species identification rates of selected taxa. Artificially assembled mock communities with known composition and relative abundances were then used in an experimental setup to test detection rates and the accuracy of designed and published primers. The DNA metabarcoding protocol was then used to assess connectivity among zooplankton communities over the narrow KwaZulu-Natal continental shelf. Plankton tow nets were used to sample cross-shelf transects at three sites (uThukela, Durban and Aliwal), which are strongly influenced by the Agulhas Current but differ in shelf width, seafloor substrate and benthic habitat structures. Connectivity network analysis detected distinct clustering of zooplankton communities associated with each transect. The hypothesis that a dynamic ocean current regime associated with the offshore Agulhas Current (nearby and flowing parallel to the shelf-edge) would result in similar well-mixed alongshore zooplankton communities was rejected. A strong benthic-pelagic coupling effect was inferred based on the species composition of planktonic larvae and benthic adults occurring at the respective transects. This dissertation provides a refined and novel method for biomonitoring of marine pelagic environments in coastal waters, based on taxon-specific DNA metabarcoding of zooplankton communities. The approach is well-suited to measuring the long-term effects of climate change on marine pelagic ecosystems and ocean productivity.
Gravitational Wave Signatures Induced by Dark Fluid Accretion in Binary Systems
Creators: name: Paraskevas, Evangelos Achilleas
name: Perivolaropoulos, Leandros
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the impact of dark fluid accretion on gravitational waveforms emitted by a compact binary system consisting of a supermassive black hole and a stellar-mass black hole. Using a Lagrangian framework with 1~PN and 2.5~PN corrections, we analyze the effects of the spherically symmetric accretion of a fluid with steady-state flow, including those characterized by an equation of state parameter resembling dark energy, on the binary's dynamics.
 We validate our approach by comparing it with previous studies in the common region of validity and extend the analysis to include both local effects, such as dynamical friction, and global gravitational interactions with the stellar-mass black hole, focusing on their dependence on the fluid's properties. Our analysis reveals that these interactions induce de-phasing in gravitational waveforms, with the phase shift influenced by the fluid's equation of state and energy density. We also extend the study to sudden cosmological singularities, finding that, although they can deform the binary's orbit from initially circular to elliptical, their effect on de-phasing is negligible for cosmologically relevant energy densities. By incorporating both the local and global gravitational interactions of a fluid on a two-body system into the equations of motion, this preliminary study provides a framework for understanding the interplay between fluid dynamics and gravitational wave emissions in astrophysical systems.
 It further reinforces the potential for probing the properties of astrophysically relevant fluids through gravitational wave observations.
description: 32 pages, 7 figures, published in Universe 2025, 11(2), 62 (https://www.mdpi.com/2218-1997/11/2/62)
A WORLD OILSEEDS DATA BASE
Creators: name: Williams, Gary W.
name: Williams, Gary W.
Publisher: name: Unknown
Year: 1983
Subjects: subject: Crop Production/Industries
subject: International Relations/Trade
subject: Oilseeds
subject: Soybeans
subject: Commodity trade

description: This report provides a documented consistent data series for production, consumption, and trade in world oilseeds' markets. The data were assembled during the construction of world oilseeds models. This documented data base, assembled for the first time, will aid researchers in further studies of world oilseeds' trade.
Far Infrared Imaging of NGC 55
Creators: name: Engelbracht, C. W.
name: Gordon, K. D.
name: Bendo, G. J.
name: Perez-Gonzalez, P. G.
name: Misselt, K. A.
name: Rieke, G. H.
name: Young, E. T.
name: Hines, D. C.
name: Kelly, D. M.
name: Stansberry, J. A.
name: Papovich, C.
name: Morrison, J. E.
name: Egami, E.
name: Su, K. Y. L.
name: Muzerolle, J.
name: Dole, H.
name: Alonso-Herrero, A.
name: Hinz, J. L.
name: Smith, P. S.
name: Latter, W. B.
name: Noriega-Crespo, A.
name: Padgett, D. L.
name: Rho, J.
name: Frayer, D. T.
name: Wachter, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present images of the galaxy NGC 55 at 24, 70, and 160 micron obtained with the Multiband Imaging Photometer for Spitzer (MIPS) instrument aboard the Spitzer Space Telescope. The new images display the far infrared emission in unprecedented detail and demonstrate that the infrared morphology differs dramatically from that at shorter wavelengths. The most luminous emission region in the galaxy is marginally resolved at 24 micron and has a projected separation of nearly 520 pc from the peak emission in the optical and near infrared. This region is responsible for ~9% of the total emission at 24 micron and is likely a young star formation region. We show that this and other compact sources account for more than 1/3 of the total 24 micron emission. We compute a total infrared luminosity for NGC 55 of 1.2*10^9 L_sun. The star formation rate implied by our measurements is 0.22 M_sun/yr. We demonstrate that the cold dust is more extended than the warm dust in NGC 55--the minor-axis scale heights are 0.32, 0.43, and 0.49 kpc at 24, 70 and 160 micron, respectively. The dust temperature map shows a range of temperatures that are well-correlated with the 24 micron surface brightness, from 20 K in low-surface-brightness regions to 26 K in high-surface-brightness regions.
description: 5 pages, 6 figures, accepted to ApJS
Additional file 2 of Identification of potential novel biomarkers to differentiate malignant thyroid nodules with cytological indeterminate
Creators: name: Dandan Wu
name: Shudong Hu
name: Yongzhong Hou
name: Yingying He
name: Shubai Liu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2. Analysis of network topology for various soft-thresholding powers. In panel (A), the scale-free topology model fit index (signed R2, y-axis) shows as a function of the soft-thresholding power (x-axis). In panel (B), the mean connectivity (ki, y-axis) displays as a function of the soft-thresholding power (x-axis) under different weighting coefficients. The connectivity ki of node i equals the number of its direct connections to other nodes. P(k) indicates the frequency distribution of the connectivity. The higher the coefficient, the closer the network is to the distribution of the scale free network.
FARM CONSERVATION IN THE UNITED STATES Investment and Capital Values, 1935-80
Creators: name: Pavelis, George A.
name: Pavelis, George A.
Publisher: name: Unknown
Year: 1983
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Investment
subject: capital growth
subject: conservation capital
subject: conservation improvements
subject: farm conservation
subject: watershed projects

description: From 1935 through 1980, cumulative conservation investments in the agricultural sector of the U.S. economy were $19.1 billion, in historical dollars. When 'deflated' to a 1977 base the 'real' total investment from 1935 through 1980 came to $43.0 billion. The corresponding real 'gross capital stock' in 1980 was $20.7 billion. It measures the real full cost of conservation improvements still in service. The net or partially depreciated value of conservation capital was $13.2 billion in 1980. Compared with other farm business assets, the $13.2 billion net capital value of conservation improvements in 1980 amounted to about 3.7 percent of the net value of all land in farms. The net value of conservation improvements in 1980 was about 22 percent as large as the net capital value of all nonresidential structures on farms, and 17 percent as large as the net capital value of farm machinery and other producers' durable equipment.
Resistive MHD simulations of the Parker instability in galactic disks
Creators: name: Kowal, Grzegorz
name: Hanasz, Michal
name: Otmianowska-Mazur, Katarzyna
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Parker instability leads to the formation of tangential discontinuities in a magnetic field and subsequent magnetic reconnection due to a numerical and/or an explicit resistivity. In this paper we investigate the role of the uniform, localized and numerical resistivity on the diffusion of magnetic field lines during the growth phase of Parker instability modes. We propose a new method to quantify the diffusion of magnetic field lines which is attributed to the presence of resistivity in ideal and non-ideal MHD codes. The method relies (1) on integration of magnetic lines in between periodic boundaries, (2) on measurements of the dispersion of magnetic field lines with the left and the right periodic boundaries and (3) on a statistical analysis of shifts of a large set of magnetic lines. The proposed method makes it possible to detect topological evolution of magnetic field. We perform a series of resistive MHD simulations of the Parker instability in uniformly rotating galactic disks. We follow the topological evolution of the magnetic field evolving due to the Parker instability and relate it to the ratio of total to uniform magnetic field in galactic disks. We find that after the onset of the Parker instability, the magnetic field becomes first tangled and later on it evolves toward a uniform state due to the presence of resistivity. A similar effect of a varying contribution of a turbulent magnetic field is observed in arms and inter-arm regions of galaxies.
description: 12 pages, 13 eps figures, accepted for publication in A&A
Signaling versus Auditing
Creators: name: Hester, Helmut
name: Lang, Matthias
name: Li, Jianpei
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: competitive labor market
subject: signaling by workers
subject: auditing by firms
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: We analyze a competitive labor market in which workers signal their productivities through education, and firms have the option of auditing to learn workers' productivities. Audits are costly and non-contractible. We characterize the trade-offs between signaling by workers and costly auditing by firms. Auditing is always associated with (partial) pooling of worker types, and education is used as a signal only if relatively few workers have low productivity. Our results feature new auditing patterns and explain empirical observations in labor economics like wage differentials and comparative statics of education choices. Our analysis applies also to other signaling problems, for example, the financial structure of firms, warranties, and initial public offerings.
Dissociable Components of Information Encoding in Human Perception
Creators: name: Vidaurre, Diego
name: Cichy, Radoslaw M.
name: Woolrich, Mark W.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: MVPA
subject: oscillations
subject: stimulus decoding
subject: temporally unconstrained decoding analysis
subject: visual perception
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Brain decoding can predict visual perception from non-invasive electrophysiological data by combining information across multiple channels. However, decoding methods typically conflate the composite and distributed neural processes underlying perception that are together present in the signal, making it unclear what specific aspects of the neural computations involved in perception are reflected in this type of macroscale data. Using MEG data recorded while participants viewed a large number of naturalistic images, we analytically decomposed the brain signal into its oscillatory and non-oscillatory components, and used this decomposition to show that there are at least three dissociable stimulus-specific aspects to the brain data: a slow, non-oscillatory component, reflecting the temporally stable aspect of the stimulus representation; a global phase shift of the oscillation, reflecting the overall speed of processing of specific stimuli; and differential patterns of phase across channels, likely reflecting stimulus-specific computations. Further, we show that common cognitive interpretations of decoding analysis, in particular about how representations generalize across time, can benefit from acknowledging the multicomponent nature of the signal in the study of perception.
Additional file 1 of Identification of potential novel biomarkers to differentiate malignant thyroid nodules with cytological indeterminate
Creators: name: Dandan Wu
name: Shudong Hu
name: Yongzhong Hou
name: Yingying He
name: Shubai Liu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Sample dendrogram and Clinic Feature traits heatmap. Clustering dendrogram of samples based on their Euclidean distance. The clinical feature traits were histopathology, gender and age. The white color means a low value, red means a high value, and grey represents a missing entry.
title: (M)Unc13s in Active Zone Diversity
title: A Drosophila Perspective
titleType: Subtitle
Creators: name: Piao, Chengji
name: Sigrist, Stephan J.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: active zone diversity
subject: pre-synaptic plasticity
subject: active zone ultrastructure
subject: release sites
subject: synaptic transmission
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: The so-called active zones at pre-synaptic terminals are the ultimate filtering devices, which couple between action potential frequency and shape, and the information transferred to the post-synaptic neurons, finally tuning behaviors. Within active zones, the release of the synaptic vesicle operates from specialized “release sites.” The (M)Unc13 class of proteins is meant to define release sites topologically and biochemically, and diversity between Unc13-type release factor isoforms is suspected to steer diversity at active zones. The two major Unc13-type isoforms, namely, Unc13A and Unc13B, have recently been described from the molecular to the behavioral level, exploiting Drosophila being uniquely suited to causally link between these levels. The exact nanoscale distribution of voltage-gated Ca2+ channels relative to release sites (“coupling”) at pre-synaptic active zones fundamentally steers the release of the synaptic vesicle. Unc13A and B were found to be either tightly or loosely coupled across Drosophila synapses. In this review, we reported recent findings on diverse aspects of Drosophila Unc13A and B, importantly, their nano-topological distribution at active zones and their roles in release site generation, active zone assembly, and pre-synaptic homeostatic plasticity. We compared their stoichiometric composition at different synapse types, reviewing the correlation between nanoscale distribution of these two isoforms and release physiology and, finally, discuss how isoform-specific release components might drive the functional heterogeneity of synapses and encode discrete behavior.
Streblosoma Sars 1872
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Streblosoma

description: Streblosoma Sars, 1872 amboinense Caullery, 1944a: Ambon, Indonesia. NML 1785.1–2 duplicata Hutchings, 1990: Chek Chau, Hong Kong. AM W201914 gracile Caullery, 1944a: Sulu Sea. NML 1766, 1768 longiremis Caullery, 1915a: Savu Sea. NML 1783 quadridentatum Caullery, 1944a: Makassar, Indonesia. NML 1784.1–2
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 45, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
Classification of the chiral Z2XZ2 fermionic models in the heterotic superstring
Creators: name: Faraggi, A. E.
name: Kounnas, C.
name: Nooij, S. E. M.
name: Rizos, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The first particle physics observable whose origin may be sought in string theory is the triple replication of the matter generations. The class of Z2XZ2 orbifolds of six dimensional compactified tori, that have been most widely studied in the free fermionic formulation, correlate the family triplication with the existence of three twisted sectors in this class. In this work we seek an improved understanding of the geometrical origin of the three generation free fermionic models. Using fermionic and orbifold techniques we classify the Z2XZ2 orbifold with symmetric shifts on six dimensional compactified internal manifolds. We show that perturbative three generation models are not obtained in the case of Z2XZ2 orbifolds with symmetric shifts on complex tori, and that the perturbative three generation models in this class necessarily employ an asymmetric shift. We present a class of three generation models in which the SO(10) gauge symmetry cannot be broken perturbatively, while preserving the Standard Model matter content. We discuss the potential implications of the asymmetric shift for strong-weak coupling duality and moduli stabilization. We show that the freedom in the modular invariant phases in the N=1 vacua that control the chiral content, can be interpreted as vacuum expectation values of background fields of the underlying N=4 theory, whose dynamical components are projected out by the Z2-fermionic projections. In this class of vacua the chiral content of the models is determined by the underlying N=4 mother theory.
description: 36 pages. Standard LaTeX
FOREIGN OWNERSHIP OF U.S. AGRICULTURAL LAND THROUGH DECEMBER 31, 1982
Creators: name: DeBraal, J. Peter
name: Majchrowicz, T. Alexander
name: DeBraal, J. Peter
name: Majchrowicz, T. Alexander
Publisher: name: Unknown
Year: 1983
Subjects: subject: International Relations/Trade
subject: Land Economics/Use
subject: Agricultural land
subject: foreign landownership
subject: landholdings
subject: land acquisitions
subject: land dispositions

description: Foreigners owned 13.5 million acres of U.S. agricultural land as of December 31, 1982. This is slightly more than 1 percent of all privately held agricultural land and 0.6 percent of all land in the United States. This share is too small to measure the impact on agriculture at the national level. However, some communities in areas of heaviest concentration could be affected. These findings are based on an analysis of reports submitted in compliance with the Agricultural Foreign Investment Disclosure Act of 1978.
Dicrurus meeki Rothschild and Hartert
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Dicruridae
Dicrurus
Dicrurus meeki

description: Dicrurus meeki Rothschild and Hartert
Dicrurus meeki Rothschild and Hartert, 1903b: 110 (Guadalcanar, Solomon Islands).
Now Dicrurus bracteatus meeki Rothschild and Hartert, 1903. See Hartert, 1919: 132; Vaurie, 1949b: 291; 1962: 150; Mayr and Diamond, 2001: 400; Dickinson, 2003: 493; and Rocamora and Yeatman-Berthelot, 2009: 216–217.
HOLOTYPE: AMNH 672564, adult male, collected on Guadalcanal (= Guadalcanar) Island, 09.30S, 160.00E (Times Atlas), Solomon Islands, on 24 May 1901, by Albert S. Meek (no. 3188). From the Rothschild Collection.
COMMENTS: In the original description, Rothschild and Hartert designated the male bearing Meek’s number 3188 as the holotype and listed two specimens in their type series. The paratype is AMNH 672565, adult male, Guadalcanal, 8 May 1901, collected by Meek (no. 3110). The female specimen mentioned by Vaurie (1949b: 291) as a paratype of meeki is a specimen collected by the Whitney South Sea Expedition in 1927, long after the publication of meeki.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 56, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
A dark state of Chern bands: Designing flat bands with higher Chern number
Creators: name: Łącki, Mateusz
name: Zakrzewski, Jakub
name: Goldman, Nathan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a scheme by which flat bands with higher Chern number $\vert C\vert>1$ can be designed in ultracold gases through a coherent manipulation of Bloch bands. Inspired by quantum-optics methods, our approach consists in creating a "dark Bloch band" by coupling a set of source bands through resonant processes. Considering a $Λ$ system of three bands, the Chern number of the dark band is found to follow a simple sum rule in terms of the Chern numbers of the source bands: $C_D\!=\!C_1+C_2-C_3$. Altogether, our dark-state scheme realizes a nearly flat Bloch band with predictable and tunable Chern number $C_D$. We illustrate our method based on a $Λ$ system, formed of the bands of the Harper-Hofstadter model, which leads to a nearly flat Chern band with $C_D\!=\!2$. We explore a realistic sequence to load atoms into the dark Chern band, as well as a probing scheme based on Hall drift measurements. Dark Chern bands offer a practical platform where exotic fractional quantum Hall states could be realized in ultracold gases.
description: 25 pages, 7 figures, including Appendices. Substantial revisions, including a mathematical proof of the sum rule
The Rise of High Energy Neutrino Astronomy at Horizon
Creators: name: Fargion, D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: High Energy Neutrino Astronomy energy windows may be ruled by a new Upward and Horizontal Tau Air-Showers (UpTaus, HorTaus) detectors (scintillators and optical arrays) located a few kilometers beyond facing High Mountains Chains, or located above their top or flying on Planes, on Balloons and on Satellites facing downward to the Earth Crust Horizon. While looking downward to the Earth seeking for Upward and Horizontal Tau Air-Showers the same optical detectors may often capture cosmic rays Cherenkov lights reflected or diffused by downward Shower cosmic rays hitting the Earth soil (a sea,a lake, ice lands, desert or ground). These new detectors may be built up as a circular hybrid crown array at high quota facing to horizon in correlation with present largest telescopes, like Magic or Shalon or ASHRA ones, if able to look below the Earth edge. The UpTaus and HorTau Astronomy at 10^15 eV up to 10^19 eV energy windows may test the largest primary neutrino fluxes in Z-Burst neutrino model needed to solve the GZK puzzle or even the smaller but inevitable GZK neutrino flux secondary of the same GZK cut-off. These HorTus signals might well be observed in future EUSO experiment.
description: 15 pages, 20 figures, VHEPA Conference March 2003
Multi-phase Nitride-based Metamaterial Thin Films towards Tunable Microstructure and Coupled Multifunctionalities
Creators: name: Song, Jiawei
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 401602
subject: Composite and hybrid materials

description: Hybrid metamaterials have garnered significant attention in recent years owing to their unique properties not found in natural materials. These materials are engineered by integrating two or more distinct materials at the nanoscale, forming various microstructures such as particle-in-matrix, pillar-in-matrix, and multilayers. The recent development of vertically aligned nanocomposites (VANs) offers a platform in forming pillar-in-matrix metamaterials in a self-assembled fashion. Transition metal nitrides, such as titanium nitride (TiN), are interesting materials for VAN designs due to their outstanding plasmonic properties, chemical stability, and compatibility with various functional materials. However, the current range of material selection and morphological demonstrations in two-phase nitride-based nanocomposites is limited. There is a growing need for a deeper understanding of the self-assembly growth mechanism and greater freedom in structural and property tunability of nitride-based VANs to develop the next generation of integrated photonic and electronic devices.This dissertation investigates the design, growth mechanisms, and tunability of nitride-based VANs for advanced metamaterial applications. The first chapter focuses on integrating ferromagnetic CoFe2 into a plasmonic TiN matrix to achieve anisotropic optical and magnetic properties, as well as coupling effects between the two phases. In the second chapter, a third phase, gold (Au), is introduced into TiN-CoFe2 VANs in a core-shell configuration, demonstrating enhanced tunability in microstructure and resultant properties, such as distinct hyperbolic behavior and switchable magnetic easy axis. The third chapter extends the exploration into three-dimensional (3D) nanostructured films by combining different VAN films (e.g., TiN-CoFe2, TaN-CoFe2) in multilayer configurations, demonstrating highly tunable optical properties along with ferromagnetic response. This 3D nanocomposite approach highlights the potential for advanced tunability in metamaterials beyond traditional two-phase VAN designs. The fourth chapter explores the control of stoichiometry and phase composition in TiN-CuO systems. By systematically adjusting oxygen partial pressure during deposition, a gradual transition from metallic to dielectric behavior in these nanocomposite films has been observed. This investigation provides valuable insights into the comprehensive understanding of the interaction processes within hybrid nanocomposites during self-assembly. Overall, this thesis presents diverse methodologies for tuning microstructures and functionalities within nitride-based VAN systems, showing potentials for advanced applications in optics, magnetics, and beyond in metamaterial research.
Ammonium Pertechnetate in Mixtures of Trifluoromethanesulfonic Acid and Trifluoromethanesulfonic Anhydride
Creators: name: Zegke, Markus
name: Grödler, Dennis
name: Jungfer, Maximilian Roca
name: Haseloer, Alexander
name: Kreuter, Meike
name: Neudörfl, Jörg M.
name: Sittel, Thomas
name: James, Christopher M.
name: Rothe, Jörg
name: Abram, Ulrich
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: anhydride
subject: pertechnetate
subject: reduction
subject: super acid
subject: trifluoromethanesulfonic acid
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Ammonium pertechnetate reacts in mixtures of trifluoromethanesulfonic anhydride and trifluoromethanesulfonic acid under final formation of ammonium pentakis(trifluoromethanesulfonato)oxidotechnetate(V), (NH4)2[TcO(OTf)5]. The reaction proceeds only at exact concentrations and under the exclusion of air and moisture via pertechnetyl trifluoromethanesulfonate, [TcO3(OTf)], and intermediate TcVI species. 99Tc nuclear magnetic resonance (NMR) has been used to study the TcVII compound and electron paramagnetic resonance (EPR), 99Tc NMR and X-ray absorption near-edge structure (XANES) experiments indicate the presence of the reduced technetium species. In moist air, (NH4)2[TcO(OTf)5] slowly hydrolyses under formation of the tetrameric oxidotechnetate(V) (NH4)4[{TcO(TcO4)4}4] ⋅10 H2O. Single-crystal X-ray crystallography was used to determine the solid-state structures. Additionally, UV/Vis absorption and IR spectra as well as quantum chemical calculations confirm the identity of the species.
Electric Dipole Moments of Leptons in the Presence of Majorana Neutrinos
Creators: name: Archambault, John Paul
name: Czarnecki, Andrzej
name: Pospelov, Maxim
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the two-loop diagrams that give a non-zero contribution to the electric dipole moment d_l of a charged lepton l due to possible Majorana masses of neutrinos. Using the example with one generation of the Standard Model leptons and two heavy right-handed neutrinos, we demonstrate that the non-vanishing result for d_l first appears in order O(m_l m_ν^2 G_F^2), where m_νis the mass of the light neutrino and the see-saw type relation is imposed. This effect is beyond the reach of presently planned experiments.
description: 13 pages
Thelepus Leuckart 1849
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Thelepus

description: Thelepus Leuckart, 1849 abyssorum Caullery, 1944a: Savu Sea. NML 1762, 1763 angustitoris Caullery, 1944a: E Tual, Indonesia. NML 1758, 1767 binakayensis Pillai, 1965: Binakayan, Cavite, Philippines. RTS 24, NHM AN03.1965.33.46-47 dubius Caullery, 1944a: E Sulawesi, Indonesia. NML 1760, 1764 microbranchiatus Caullery, 1944a: Molucca Sea. NML 1759, 1761, 1786 opimus Hutchings, 1990: Peng Chau, Mirs Bay, Hong Kong. AM W201916 pulvinus Hutchings, 1990: Cox Head Rock, Hong Kong. AM W201895, W201896–201902, USNM 102814, NMW 1986.79.57, NHM PO01 1987.577 taamensis Caullery, 1944a: SW Pulau Walir, Indonesia. NML 1757
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 45, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
FARMLAND OWNERSHIP IN THE UNITED STATES.
Creators: name: Daugherty, Arthur B.
name: Otte, Robert C.
name: Daugherty, Arthur B.
name: Otte, Robert C.
Publisher: name: Unknown
Year: 1983
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: farmland
subject: landholdings
subject: landowners
subject: land tenure
subject: land values
subject: ownership characteristics
subject: regional distribution

description: Over 83 percent of the farmland in private ownership in 1978 was held by sole proprietors, husbands and wives, or family partnerships. Nonfamily corporations owned less than 4 percent of the farmland but reported an average of 520 acres per owner compared to 129 for individual and family ownerships. The 1 percent of farmland owners with the largest holdings held about 30 percent of the farmland. Farmland owners in the aggregate reported operating 70 percent of their holdings. However, only about 40 percent of the farmland was owned by farmers who operate only land they own. Owners who considered farming their principal occupation owned 57 percent of the reported farmland.
WHO OWNS THE LAND? A STATE AND REGIONAL SUMMARY OF LANDOWNERSHIP IN THE UNITED STATES
Creators: name: Gustafson, Greg C.
name: Gustafson, Greg C.
Publisher: name: Unknown
Year: 1983
Subjects: subject: Land Economics/Use
subject: Political Economy
subject: Land
subject: farmland
subject: landowners

description: Ninety percent of the land in the West (excluding Alaska) is owned by 5 percent (268,000) of the western landowners. That compares with a national average of 75 percent of the private land owned by 5 percent of U.S. landowners. Most of those owners of extensive tracts, however, are individuals, not corporations. Nonfamily corporations and partnerships own about 13 percent of all land and 6 percent of the farmland. Those findings are based on more than 37,000 responses to a 1978 landownership survey. The survey results, presented here, detail the differences in landowner characteristics by State and region.
Symmetries and integrals of motion of a superintegrable deformed oscillator
Creators: name: Gonera, Joanna
name: Jasinski, Artur
name: Kosinski, Piotr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The symmetry structure of twodimensional nonlinear isotropic oscillator, introduced in Physica D237 (2008) 505, is discussed. It is shown that it possesses three independent integrals of motion which can be chosen in such a way that they span SU(2), E(2) or SU(1,1) algebras, depending on the value of total energy. They generate the infinitesimal canonical symmetry transformations; integrability of the latter is analyzed. The results are then generalized to the case of arbitrary number of degrees of freedom.
description: 20 pages, no figures; version which appeared in Annals of Physics (except two sentences of explanation added here)
Fourier interpolation from spheres
Creators: name: Stoller, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42A38, 11F27

description: In every dimension $d \geq 2$, we give an explicit formula that expresses the values of any Schwartz function on $\mathbb{R}^d$ only in terms of its restrictions, and the restrictions of its Fourier transform, to all origin-centered spheres whose radius is the square root of an integer. We thus generalize an interpolation theorem by Radchenko and Viazovska to higher dimensions. We develop a general tool to translate Fourier uniqueness- and interpolation results for radial functions in higher dimensions, to corresponding results for non-radial functions in a fixed dimension. In dimensions greater or equal to 5, we solve the radial problem using a construction closely related to classical Poincare series. In the remaining small dimensions, we combine this technique with a direct generalization of the Radchenko--Viazovska formula to higher-dimensional radial functions, which we deduce from general results by Bondarenko, Radchenko and Seip.
description: 33 pages; added Theorem 3, Propositions 4.1, 7.1 and 8.1
Dicrurus hottentottus subsp. morotensis Vaurie 1946
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Dicruridae
Dicrurus
Dicrurus hottentottus
Dicrurus hottentottus morotensis vaurie

description: Dicrurus hottentottus morotensis Vaurie
Dicrurus hottentottus morotensis Vaurie, 1946: 82 (Morotai Island).
Now Dicrurus bracteatus morotensis Vaurie, 1946. See Vaurie, 1949b: 282–283; 1962: 148–149; White and Bruce, 1986: 314–316; Dickinson, 2003: 493; and Rocamora and Yeatman-Berthelot, 2009: 216–217.
HOLOTYPE: AMNH 672587, sex?, Morotai (Morty, as on label) Island, 02.20N, 128.25E (White and Bruce, 1986: 491), Moluccas, Indonesia, undated, collected by J.M. Dumas. From the Rothschild Collection.
COMMENTS: In the original description, Vaurie cited the AMNH number of the holotype and noted that he had a second specimen. The paratype is: AMNH 672586, sex?, Morotai Island, undated, collected by Dumas. Dumas is known to have collected on Morotai in late 1898 (LeCroy and Jansen, 2011: 176–177).
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 55, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
How challenging RADseq data turned out to favor coalescent-based species tree inference. A case study in Aichryson (Crassulaceae)
Creators: name: Hühn, Philipp
name: Dillenberger, Markus S.
name: Gerschwitz-Eidt, Michael
name: Hörandl, Elvira
name: Los, Jessica A.
name: Messerschmid, Thibaud F. E.
name: Paetzold, Claudia
name: Rieger, Benjamin
name: Kadereit, Gudrun
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: clustering threshold selection
subject: coalescent-based summary method
subject: data bias
subject: locus filtering
subject: RADseq
subject: species tree inference
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Analysing multiple genomic regions while incorporating detection and qualification of discordance among regions has become standard for understanding phylogenetic relationships. In plants, which usually have comparatively large genomes, this is feasible by the combination of reduced-representation library (RRL) methods and high-throughput sequencing enabling the cost effective acquisition of genomic data for thousands of loci from hundreds of samples. One popular RRL method is RADseq. A major disadvantage of established RADseq approaches is the rather short fragment and sequencing range, leading to loci of little individual phylogenetic information. This issue hampers the application of coalescent-based species tree inference. The modified RADseq protocol presented here targets ca. 5,000 loci of 300-600nt length, sequenced with the latest short-read-sequencing (SRS) technology, has the potential to overcome this drawback. To illustrate the advantages of this approach we use the study group Aichryson Webb & Berthelott (Crassulaceae), a plant genus that diversified on the Canary Islands. The data analysis approach used here aims at a careful quality control of the long loci dataset. It involves an informed selection of thresholds for accurate clustering, a thorough exploration of locus properties, such as locus length, coverage and variability, to identify potential biased data and a comparative phylogenetic inference of filtered datasets, accompanied by an evaluation of resulting BS support, gene and site concordance factor values, to improve overall resolution of the resulting phylogenetic trees. The final dataset contains variable loci with an average length of 373nt and facilitates species tree estimation using a coalescent-based summary approach. Additional improvements brought by the approach are critically discussed.