cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A magyar mezőgazdasági politika és vidékfejlesztés jövőképe
Creators: name: Veress, László
name: Nagy, Bálint
name: Tanka, Endre
name: Szeremley, Béla
name: Márton, János
name: Veress, László
name: Nagy, Bálint
name: Tanka, Endre
name: Szeremley, Béla
name: Márton, János
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Public Economics

description: A mezőgazdaságnak, a termékeit feldolgozó és az inputokat előállító iparágaknak, igen nagy a lakosságeltartó képessége. Ezért olyan hosszú távú nemzeti önvédelmi mezőgazdasági politika kidolgozása szükséges, amely az immár két évtizede tartó hanyatlást megállítja és a fejlesztés feltételeit megteremti. EU tagként a mezőgazdaságtól több feladat várható: egészségesebb élelmiszerek termelése, a föld és környezet megóvása, valamint a nemzeti és paraszti hagyományok ápolása. Ennek érdekében az EU korábbi tagországaival azonos földtörvényt indokolt megalkotnunk, hasonlóképpen alakítva a földbirtokszerkezetet. Ehhez szövetkezeti integráció, közös érdekérvényesítés szükséges. A klímaváltozásra, az aszályosabb időjárásra is fel kell készülni. Az új EU tagországokkal összefogva megelőzhető a hazai mezőgazdaság gyarmatosítása. ------------- People employing capacity of agriculture together with that of industry processing its products and making its inputs is very high. Therefore the development of a long-term selfprotecting agricultural policy is required that halts a decline of Hungarian agriculture of nearly two decades and creates conditions for fresh development. As an EU member Hungarian agriculture is expected to fulfill a number of objectives: production of healthier food, protection of land and environment and cultivation of national and rustic traditions. To do this it is essential to enact legislation governing land and the structure of its ownership similar to that in other member states. This requires cooperative integration and facilities for collective bargaining. We have to prepare for changes in future climate and drier weather. In cooperation with member states the colonization of home agriculture can be circumvented.
The Influence of Black Hole Mass and Accretion Rate on the FRI/FRII Radio Galaxy Dichotomy
Creators: name: Wold, M.
name: Lacy, M.
name: Armus, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use medium resolution optical spectra of 3CR radio galaxies to estimate their black hole masses and accretion rates. Black hole masses are found from central stellar velocity dispersions and accretion rates are derived from narrow emission-line luminosities. The sample covers both Fanaroff-Riley (FR) classes; the more powerful FRIIs and the less powerful FRIs. We find that FRIs and FRIIs separate in diagrams of black hole mass versus radio luminosity and narrow-line luminosity. This suggests that, at a given black hole mass, the FRIIs accrete more efficiently, or accrete more matter, than FRIs.
description: 2 pages, 1 figure. Contribution to the proceedings of the conference "Growing Black Holes", Garching, Germany, June 21-24, 2004. Eds. A. Merloni, S. Nayakshin, R. Sunyaev
Az EU Közös Agrárpolitikájának 2003. évi reformja
Creators: name: Kiss, Judit
name: Kiss, Judit
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Agricultural Finance
Community/Rural/Urban Development
Public Economics

description: A Gazdálkodás Szerkesztősége a 10. számú különkiadással kívánta elősegíteni az EU közös agrárpolitikája 2003. évi reformjának megismerését az olvasók, szakemberek, oktatók-kutatók, irányító posztokat betöltők körében. A 10. különkiadásban a szerzők széleskörű elemző munkájából a reformmal várható változásokat emeltük ki. Kitűnő szerzőnk, Kiss Judit tollából származó cikk most viszont a reform belső és külső körülményeire, a reform céljaira, a legfontosabb változásokra, valamint várható hatásaira helyezi a hangsúlyt, magyarázva, megvilágítva a reform lényegét és a valószínűsíthető következményeket. ------------- The Editory of the periodical “Gazdálkodás”, the 10th supplement wanted to promote the general knowledge of the reforms 2003 of agrarian policies in the EU in order to inform its readers, experts, teachers as well as decision-makers. From different sources, the excellent author, Judit Kiss, focussed on the changes initiated by outer and inner reasons, which are to be considered in the process of adaptation to the EU. The essence of the reform is outlined with the expected consequences beyond the integration of the new EU members.
Laser Cooling of Transition Metal Atoms
Creators: name: Eustice, Scott
name: Cassella, Kayleigh
name: Stamper-Kurn, Dan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose the application of laser cooling to a number of transition-metal atoms, allowing numerous bosonic and fermionic atomic gases to be cooled to ultra-low temperatures. The non-zero electron orbital angular momentum of these atoms implies that strongly atom-state-dependent light-atom interactions occur even for light that is far-detuned from atomic transitions. At the same time, many transition-metal atoms have small magnetic dipole moments in their low-energy states, reducing the rate of dipolar-relaxation collisions. Altogether, these features provide compelling opportunities for future ultracold-atom research. Focusing on the case of atomic titanium, we identify the metastable $a ^5F_5$ state as supporting a $J \rightarrow J+1$ optical transition with properties similar to the D2 transition of alkali atoms, and suited for laser cooling. The high total angular momentum and electron spin of this state suppresses leakage out of the the nearly closed optical transition to a branching ratio estimated below $\sim 10^{-5}$. Following the pattern exemplified by titanium, we identify optical transitions that are suited for laser cooling of elements in the scandium group (Sc, Y, La), the titanium group (Ti, Zr), the vanadium group (V, Nb), the manganese group (Mn, Tc), and the iron group (Fe, Ru).
description: 12 pages, 6 figures
A szlovén és a magyar kifizető ügynökségi rendszer kialakításának sajátosságai
Creators: name: Neszmélyi, Athéné
name: Neszmélyi, Athéné
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural Finance
Public Economics

description: Szlovénia és Magyarország 2004. május 1-től az Európai Unió tagállamai közé tartozik. A Közös Agrárpolitika működtetésének és ezen belül az Unió költségvetéséből finanszírozott agrár- és egyes vidékfejlesztési támogatások igénybevételének kötelező feltétele volt az EU támogatásokat adminisztráló és ellenőrző kifizető ügynökség kialakítása. Szlovénia kifizető ügynökségi rendszerének kialakításában mindvégig elöljárt és jó példával szolgált a többi új tagállam részére. Magyarország a csatlakozást megelőző másfél-egy évben tett erőfeszítések árán hozta be a rendszer kiépítésében lévő lemaradását és alakította ki kifizető ügynökségi rendszerét. ---------------- Slovenia and Hungary have belonged to the Member States of the European Union since 1 May 2004. Prerequisite of the Common Agricultural Policy implementation and especially of calling-upon agricultural and rural development subsidies from the EU funds was the design and setting-up of the paying agency administering and controlling EU subsidies. Slovenia has set a very good example throughout designing its paying agency system. Hungary made considerable efforts in the last one and a half – one year in order to overtake its arrears on the field of designing the system and the country has set-up its paying agency system.
A romániai mezőgazdasági átalakulás tapasztalatai, tekintettel az EU-csatlakozásra
Creators: name: Bors, Réka
name: Bors, Réka
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
Public Economics

description: Románia 2007-re ígért EU csatlakozása a mezőgazdaság számára nagy kihívást jelent. Az EU csatlakozásig a román mezőgazdaságban még sok a tennivaló a tulajdonrendezés, a jól működő agrárpiacok, az uniós növény- és állat-egészségügyi követelményeknek való megfelelésben. Fel kell készíteni az ágazat szereplőit a CAP 2003 júniusában elfogadott „legújabb átfogó reformjára”. Románia a SAPARD előcsatlakozási program eszközeihez is nehezen és későn jutott hozzá, mivel a SAPARD ügynökségek felállítása és akkreditálása csak 2002 júliusában történt meg (2002/638/EC határozat). Az elmúlt évtizedben Románia agrárgazdaságára a termelés csökkenése, az állatállomány drasztikus visszaesése, a tulajdonviszonyok rendezetlensége, az agrárpénzügyi helyzet megoldatlansága, az integrációs lánc hiánya, kiépítetlensége, a tényleges árutermelést szolgáló gazdaságok alacsony száma, az értékesítés körüli kiszolgáltatottság, az érdekérvényesítés szinte teljes hiánya, a vidéki munkanélküliség volt jellemző. Mindezen problémák drámai módon sürgetik a stratégiai fejlesztést, az érintettek és a kormányzat együttes cselekvését. ------------- The anticipated EU-integration of Rumania in 2007 is a severe challenge for the agricultural production. Up to this date, there are many endeavours to be settled in the agriculture of Rumania, i.e. setting right the ownership relations, functional markets of agricultural products, observation of sanitary prescriptions in plant and animal products. The actors of the branch have to be prepared to introduce the „new, general reform”, which has been passed as CAP in June 2003. Rumania had a late and limited access to the means of SAPARD to prepare its joining to the EU because the establishment and accreditation of SAPARD agencies ensued in July, 2002, only (2002/638/EC resolution). The last ten years of Rumania experienced the reduction of agricultural production, drastic decrease of animal stocks, unsettled ownerships, unsolved relations in the financement of agriculture, deficiency and lacks in the chain of integration, a low number of farms producing real commodities, a complete delivery of the producer to the broker, a lack in enforcement of interests, rural unemployment. All those problems urge a strategic development, dramatically, which presumes a joint effort of the interested parties and of the government.
Bandgap Control in Two-Dimensional Semiconductors via Coherent Doping of Plasmonic Hot Electrons
Creators: name: Chen, Yu-Hui
name: Tamming, Ronnie R.
name: Chen, Kai
name: Zhang, Zhepeng
name: Zhang, Yanfeng
name: Hodgkiss, Justin M.
name: Blaikie, Richard J.
name: Ding, Boyang
name: Qiu, Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bandgap control is of central importance for semiconductor technologies. The traditional means of control is to dope the lattice chemically, electrically or optically with charge carriers. Here, we demonstrate for the first time a widely tunable bandgap (renormalisation up to 650 meV at room-temperature) in two-dimensional (2D) semiconductors by coherently doping the lattice with plasmonic hot electrons. In particular, we integrate tungsten-disulfide (WS$_2$) monolayers into a self-assembled plasmonic crystal, which enables coherent coupling between semiconductor excitons and plasmon resonances. Accompanying this process, the plasmon-induced hot electrons can repeatedly fill the WS$_2$ conduction band, leading to population inversion and a significant reconstruction in band structures and exciton relaxations. Our findings provide an innovative and effective measure to engineer optical responses of 2D semiconductors, allowing a great flexiblity in design and optimisation of photonic and optoelectronic devices.
Progressive Growing of Neural ODEs
Creators: name: Ayyubi, Hammad A.
name: Yao, Yi
name: Divakaran, Ajay
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Neural Ordinary Differential Equations (NODEs) have proven to be a powerful modeling tool for approximating (interpolation) and forecasting (extrapolation) irregularly sampled time series data. However, their performance degrades substantially when applied to real-world data, especially long-term data with complex behaviors (e.g., long-term trend across years, mid-term seasonality across months, and short-term local variation across days). To address the modeling of such complex data with different behaviors at different frequencies (time spans), we propose a novel progressive learning paradigm of NODEs for long-term time series forecasting. Specifically, following the principle of curriculum learning, we gradually increase the complexity of data and network capacity as training progresses. Our experiments with both synthetic data and real traffic data (PeMS Bay Area traffic data) show that our training methodology consistently improves the performance of vanilla NODEs by over 64%.
Robustness and Independence of the Eigenstates with respect to the Boundary Conditions across a Delocalization-Localization Phase Transition
Creators: name: Ge, Zi-Yong
name: Fan, Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We focus on the many-body eigenstates across a localization-delocalization phase transition. To characterize the robustness of the eigenstates, we introduce the eigenstate overlaps $\mathcal{O}$ with respect to the different boundary conditions. In the ergodic phase, the average of eigenstate overlaps $\bar{\mathcal{O}}$ is exponential decay with the increase of the system size indicating the fragility of its eigenstates, and this can be considered as an eigenstate-version butterfly effect of the chaotic systems. For localized systems, $\bar{\mathcal{O}}$ is almost size-independent showing the strong robustness of the eigenstates and the broken of eigenstate thermalization hypothesis. In addition, we find that the response of eigenstates to the change of boundary conditions in many-body localized systems is identified with the single-particle wave functions in Anderson localized systems. This indicates that the eigenstates of the many-body localized systems, as the many-body wave functions, may be independent of each other. We demonstrate that this is consistent with the existence of a large number of quasilocal integrals of motion in the many-body localized phase. Our results provide a new method to study localized and delocalized systems from the perspective of eigenstates.
description: 8 pages, 6 figures
Dependence of RNA secondary structure on the energy model
Creators: name: Burghardt, Bernd
name: Hartmann, Alexander K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: We analyze a microscopic RNA model, which includes two widely used models as limiting cases, namely it contains terms for bond as well as for stacking energies. We numerically investigate possible changes in the qualitative and quantitative behaviour while going from one model to the other; in particular we test, whether a transition occurs, when continuously moving from one model to the other. For this we calculate various thermodynamic quantities, both at zero temperature as well as at finite temperatures. All calculations can be done efficiently in polynomial time by a dynamic programming algorithm. We do not find a sign for transition between the models, but the critical exponent $ν$ of the correlation length, describing the phase transition in all models to an ordered low-temperature phase, seems to depend continuously on the model. Finally, we apply the epsilon-Coupling method, to study low excitations. The exponent $θ$ describing the energy-scaling of the excitations seems to depend not much on the energy model.
description: 8 pages, 9 figures
Localized massive excitation of quantum gravity as a dark particle
Creators: name: Hamada, Ken-ji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct a static and spherical excited state without singularities in renormalizable quantum gravity with background-free nature asymptotically. Its diameter is given by a correlation length of the quantum gravity, longer than the Planck length by 2 orders of magnitude, and it has a Schwarzschild tail outside. The quantum gravity dynamics inside is described by employing a nonperturbative expression of higher-order corrections assumed from a physical requirement that the dynamics disappear at the edge where it is in strong coupling. A running coupling constant that is a manifestation of nonlinearity and nonlocality is managed by approximating it as a mean field that depends on the radial coordinate. If the mass is several times the Planck mass, we can set up a system of linearized equations of motion for the gravitational potentials incorporating the running effect and obtain the excited state as its solution. It may be a candidate for dark matter, and will give a new perspective on black hole physics.
description: 13 pages, 2 figures, title slightly changed, add further descriptions of approximation applied for strong coupling dynamics, references corrected
The gerousia of Ephesus
Creators: name: Bailey, Colin
Publisher: name: University of British Columbia
Year: 2010

description: In various cities throughout Asia Minor, associations called gerousiai existed under the Roman Empire. These groups are most easily studied from the inscriptions which have been excavated and published for each city; in fact, epigraphic evidence is often the only source which sheds light on the nature of any particular gerousia. It has been customary to divide the gerousia as an institution into two groups: the Asiatic gerousia, namely the gerousiai of the Roman provinces of Asia Minor, and the Doric gerousia, which is most well known from the board of twenty-eight elders who advised the kings of Sparta. The initial purpose of this study was to examine the Asiatic gerousiai in order to determine the position of these bodies in their cities, particularly with respect to the boule and demos of those cities. It quickly became apparent from the quantity of available inscriptions, however, that such a topic was somewhat too large for a mere dissertation. I have chosen, therefore, to limit myself to the Ionian city of Ephesus (modern Selçuk). The intensive focus on the Ephesian gerousia allows a greater degree of detail than would have been permitted in a more general study of similar size. The abundance of evidence for this city has made it possible to draw conclusions about several aspects of a single gerousia without introducing the assumption, implicit or explicit, that all Asiatic gerousiai were the same. This is a study of the gerousia of the Ephesus and does not purport to make any conclusions about a general Asiatic gerousia. The large number of inscriptions from Ephesus available for this study also offers a further advantage, as I hope will emerge in the following pages: we cannot speak of a "Hellenistic gerousia" and a "Roman gerousia " as two distinct entities. Certainly there was a gerousia in Hellenistic period and one in the Roman period, and the terms Hellenistic gerousia and Roman gerousia may well be used in the course of this work, but not as archetypes.
Ultracold atom superfluidity induced by the Feshbach resonance
Creators: name: Domanski, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We discuss the possible signatures of superfluidity induced by the Feshbach resonance in ultracold gas of fermion atoms. Approaching the phase transition from above there appear various manifestations of the gradually emerging order parameter, but yet the long range coherence is not established due to strong quantum fluctuations. The single particle excitation spectrum becomes gapped while at the same time the pair excitations are characterized by the narrow quasiparticle peak surrounded by the incoherent background. This quasiparticle shows up certain collective features such as the remnant of the "first sound" which at Tc spreads down to low momenta. Presence of this Goldstone mode is the most unambiguous proof for appearance of the superfluid state. We discuss how such mode can be detected experimentally.
description: 5 pages, 3 figures
The Effects of Social Media Connections on the Indian Fertility Transition: Do Facebook Friends’ Fertility Decisions Influence Fertility Choices and Preferences?
Creators: name: Crombach, Lamar
name: Wildeman, Jet
name: Schrijner, Sandor
name: Smits, Jeroen
Publisher: name: ETH Zurich
Year: 2021
Subjects: Fertility
Social Media
Network Analysis

description: Abstracts Dutch Demography Day 2021
A Safe Harbor: Wealth-Income Ratios in Switzerland Over the 20th Century and the Role of Housing Prices
Creators: name: Martínez, Isabel Z.
name: Baselgia, Enea
Publisher: name: ETH Zurich
Year: 2021
Subjects: wealth-income ratio
income distribution
Economic Growth
housing prices

description: CEPR Discussion Papers, 16660
description: ISSN:0265-8003
Additional file 2 of Psychometric properties of measures of substance use: a systematic review and meta-analysis of reliability, validity and diagnostic test accuracy
Creators: name: Glenn-Milo Santos
name: Strathdee, Steffanie A.
name: El-Bassel, Nabila
name: Patel, Poonam
name: Subramanian, Divya
name: Horyniak, Danielle
name: Cook, Ryan R.
name: McCullagh, Charlotte
name: Marotta, Phillip
name: Foram Choksi
name: Kang, Brian
name: Allen, Isabel
name: Shoptaw, Steven
Publisher: name: figshare
Year: 2020
Subjects: Biochemistry
Medicine
Cell Biology
Pharmacology
Biotechnology
Computational Biology

description: Additional file 2: Table S1. Characteristics and Risk of Bias Studies Included in Meta-Analyses. Table S2. References of Studies Meta-Analyzed, by Scale.
Additional file 1 of An individualized immune prognostic signature in lung adenocarcinoma
Creators: name: Liangdong Sun
name: Gening Jiang
name: Gonzalez-Rivas, Diego
name: Zhang, Peng
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. An individualized immune prognostic signature in lung adenocarcinoma. Liangdong Sun, Gening Jiang, Diego Gonzalez-Rivas and Peng Zhang.
Adaptive Semantic-Visual Tree for Hierarchical Embeddings
Creators: name: Yang, Shuo
name: Yu, Wei
name: Zheng, Ying
name: Yao, Hongxun
name: Mei, Tao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Merchandise categories inherently form a semantic hierarchy with different levels of concept abstraction, especially for fine-grained categories. This hierarchy encodes rich correlations among various categories across different levels, which can effectively regularize the semantic space and thus make predictions less ambiguous. However, previous studies of fine-grained image retrieval primarily focus on semantic similarities or visual similarities. In a real application, merely using visual similarity may not satisfy the need of consumers to search merchandise with real-life images, e.g., given a red coat as a query image, we might get a red suit in recall results only based on visual similarity since they are visually similar. But the users actually want a coat rather than suit even the coat is with different color or texture attributes. We introduce this new problem based on photoshopping in real practice. That's why semantic information are integrated to regularize the margins to make "semantic" prior to "visual". To solve this new problem, we propose a hierarchical adaptive semantic-visual tree (ASVT) to depict the architecture of merchandise categories, which evaluates semantic similarities between different semantic levels and visual similarities within the same semantic class simultaneously. The semantic information satisfies the demand of consumers for similar merchandise with the query while the visual information optimizes the correlations within the semantic class. At each level, we set different margins based on the semantic hierarchy and incorporate them as prior information to learn a fine-grained feature embedding. To evaluate our framework, we propose a new dataset named JDProduct, with hierarchical labels collected from actual image queries and official merchandise images on an online shopping application. Extensive experimental results on the public CARS196 and CUB-
The distribution of two-dimensional eccentricity of Sunyaev-Zeldovich Effect and X-ray surface brightness profiles
Creators: name: Wang, Y. -G.
name: Fan, Z. -H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With the triaxial density profile of dark matter halos and the corresponding equilibrium gas distribution, we derive two-dimensional Sunyaev-Zeldovich (SZ) effect and X-ray surface brightness profiles for clusters of galaxies. It is found that the contour map of these observables can be well approximated by a series of concentric ellipses with scale-dependent eccentricities. The statistical distribution of their eccentricities (or equivalently axial ratios) is analyzed by taking into account the orientation of clusters with respect to the line of sight and the distribution of the axial ratios and the concentration parameters of dark matter halos. For clusters of mass $10^{13}h^{-1}{M}_{\odot}$ at redshift $z=0$, the axial ratio is peaked at $η\sim 0.9$ for both SZ and X-ray profiles. For larger clusters, the deviation from circular distributions is more apparent, with $η$ peaked at $η\sim 0.85$ for $M=10^{15}h^{-1}{M}_{\odot}$. To be more close to observations, we further study the axial-ratio distribution for mass-limited cluster samples with the number distribution of clusters at different redshifts described by a modified Press-Schechter model. For a mass limit of value $M_{lim}=10^{14}h^{-1}{M}_{\odot}$, the average axial ratio is $ \sim 0.84$ with a tail extended to $η\sim 0.6$. With fast advance of high quality imaging observations of both SZ effect and X-ray emissions, our analyses provide a useful way to probe cluster halo profiles and therefore to test theoretical halo-formation models.
description: 28 pages, 6 figures. Accepted for publication in the Astrophysical Journal
DatashareNetwork: A Decentralized Privacy-Preserving Search Engine for Investigative Journalists
Creators: name: EdalatNejad, Kasra
name: Lueks, Wouter
name: Martin, Julien Pierre
name: Ledésert, Soline
name: L'Hôte, Anne
name: Thomas, Bruno
name: Girod, Laurent
name: Troncoso, Carmela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Investigative journalists collect large numbers of digital documents during their investigations. These documents can greatly benefit other journalists' work. However, many of these documents contain sensitive information. Hence, possessing such documents can endanger reporters, their stories, and their sources. Consequently, many documents are used only for single, local, investigations. We present DatashareNetwork, a decentralized and privacy-preserving search system that enables journalists worldwide to find documents via a dedicated network of peers. DatashareNetwork combines well-known anonymous authentication mechanisms and anonymous communication primitives, a novel asynchronous messaging system, and a novel multi-set private set intersection protocol (MS-PSI) into a *decentralized peer-to-peer private document search engine*. We prove that DatashareNetwork is secure; and show using a prototype implementation that it scales to thousands of users and millions of documents.
Additional file 2 of Childbirth outcomes and ethnic disparities in Suriname: a nationwide registry-based study in a middle-income country
Creators: name: Verschueren, Kim J. C.
name: Prüst, Zita D.
name: Raëz R. Paidin
name: Lachmi R. Kodan
name: Bloemenkamp, Kitty W. M.
name: Rijken, Marcus J.
name: Browne, Joyce L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Additional file 2. Differences in maternal and neonatal characteristics between hospitals in Suriname.
Bounds on axion-like particles from the diffuse supernova flux
Creators: name: Calore, Francesca
name: Carenza, Pierluca
name: Giannotti, Maurizio
name: Jaeckel, Joerg
name: Mirizzi, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The cumulative emission of Axion-Like Particles (ALPs) from all past core-collapse supernovae (SNe) would lead to a diffuse flux with energies ${\mathcal O}(50)$ MeV. We use this to constrain ALPs featuring couplings to photons and to nucleons. ALPs coupled only to photons are produced in the SN core via the Primakoff process, and then converted into gamma rays in the Galactic magnetic field. We set a bound on $g_{aγ} \lesssim 5 \times 10^{-10}~{\rm GeV}^{-1}$ for $m_a \lesssim 10^{-11}~{\rm eV}$, using recent measurements of the diffuse gamma-ray flux observed by the Fermi-LAT telescope. However, if ALPs couple also with nucleons, their production rate in SN can be considerably enhanced due to the ALPs nucleon-nucleon bremsstrahlung process. Assuming the largest ALP-nucleon coupling phenomenologically allowed, bounds on the diffuse gamma-ray flux lead to a much stronger $g_{aγ} \lesssim 6 \times 10^{-13}~{\rm GeV}^{-1}$ for the same mass range. If ALPs are heavier than $\sim$ keV, the decay into photons becomes significant, leading again to a diffuse gamma-ray flux. In the case of only photon coupling, we find, e.g. $g_{aγ} \lesssim 5 \times 10^{-11}~{\rm GeV}^{-1}$ for $m_a \sim 5~{\rm keV}$. Allowing for a (maximal) coupling to nucleons, the limit improves to the level of $g_{aγ} \lesssim 10^{-19}~{\rm GeV}^{-1}$ for $m_a \sim 20~{\rm MeV}$, which represents the strongest constraint to date.
description: 12 pages, 7 figures. v2: minor changes to match the published version
Self-Duality and Phase Structure of the 4D Random-Plaquette Z_2 Gauge Model
Creators: name: Arakawa, Gaku
name: Ichinose, Ikuo
name: Matsui, Tetsuo
name: Takeda, Koujin
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the present paper, we shall study the 4-dimensional Z_2 lattice gauge model with a random gauge coupling; the random-plaquette gauge model(RPGM). The random gauge coupling at each plaquette takes the value J with the probability 1-p and -J with p. This model exhibits a confinement-Higgs phase transition. We numerically obtain a phase boundary curve in the (p-T)-plane where T is the "temperature" measured in unit of J/k_B. This model plays an important role in estimating the accuracy threshold of a quantum memory of a toric code. In this paper, we are mainly interested in its "self-duality" aspect, and the relationship with the random-bond Ising model(RBIM) in 2-dimensions. The "self-duality" argument can be applied both for RPGM and RBIM, giving the same duality equations, hence predicting the same phase boundary. The phase boundary curve obtained by our numerical simulation almost coincides with this predicted phase boundary at the high-temperature region. The phase transition is of first order for relatively small values of p < 0.08, but becomes of second order for larger p. The value of p at the intersection of the phase boundary curve and the Nishimori line is regarded as the accuracy threshold of errors in a toric quantum memory. It is estimated as p=0.110\pm0.002, which is very close to the value conjectured by Takeda and Nishimori through the "self-duality" argument.
description: 14 pages, 7 figures
Appendix 1. Dataset with thematic mapping and codes for the article 'Unearthing perspectives: exploring the views of heritage professionals and hobbyists on the current state of metal detecting in Estonia'
Creators: name: Kurisoo, Tuuli
name: Smirnova, Maria
Publisher: name: School of Humanities, Tallinn University
Year: 2024
Subjects: metal detecting
survey
regulation
heritage management
thematic analysis
Estonia

description: This dataset contains a summary of the results of an online survey exploring the opinions of hobbyists and heritage professionals on the current state of metal detecting in Estonia. The survey was conducted between September and October 2023 and was completed by 22 archaeologists and 152 hobby metal detectorists. The dataset consists of an Excel file with seven sheets. Sheet 1 summarises the themes and codes that emerged from the data, together with their response rates by target group. Sheets 2-4 summarise the responses from heritage professionals (positive, negative and suggestions) and sheets 5-7 summarise the responses from metal detectorists (positive, negative and suggestions. The dataset is being made public to act as supplementary data (Appendix 1) for the publication Kurisoo & Smirnova in print.
Multivariate Discrimination in Quantum Target Detection
Creators: name: Svihra, Peter
name: Zhang, Yingwen
name: Hockett, Paul
name: Ferrante, Steven
name: Sussman, Benjamin
name: England, Duncan
name: Nomerotski, Andrei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a simple multivariate technique of likelihood ratios for improved discrimination of signal and background in multi-dimensional quantum target detection. The technique combines two independent variables, time difference and summed energy, of a photon pair from the spontaneous parametric down-conversion source into an optimal discriminant. The discriminant performance was studied in experimental data and in Monte-Carlo modelling with clear improvement shown compared to previous techniques. As novel detectors become available, we expect this type of multivariate analysis to become increasingly important in multi-dimensional quantum optics.
description: The following article has been published by Applied Physics Letters. It can be found at https://aip.scitation.org/doi/10.1063/5.0012429
Didymium clavus Rabenh.
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Didymiaceae
Didymium
Didymium clavus

description: * Didymium clavus (Alb. & Schwein.) Rabenh. (1 FC, 1 loc, 1 ps)
 Loc. 10 Mahé: On fallen leaves of Cinnamomum verum, AM 3135, TK2988.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 229, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
ГИБРИД ДИАСЕТАТСЕЛЛУЛОЗА-КРЕМНЕЗЕМНИНГ МОЛЕКУЛАЛАРАРО ЎЗАРО ТАЪСИРИНИ КВАНТ КИМЁВИЙ ЎРГАНИШ
Creators: name: Собитов, М.А.
name: Яркулов, А.Ю.
name: Умаров, Б.С.
name: Акбаров, Х.И.
Publisher: name: Zenodo
Year: 2024

description: Мақолада ДАЦ-кремнезем гибридидаги молекулалараро ўзаро таъсир квант кимёвий усули билан ўрганилди. Электростатик потенциалнинг тақсимланишини ўрганиш ва табиий боғланиш орбиталларини (NBO) таҳлил қилиш орқали молекулалараро ўзаро таъсир учун масъул бўлган фаол марказлар аниқланди.
Beschäftigung von Migranten in der ostdeutschen Landwirtschaft
Creators: name: Petrick, Martin
name: Gotter, Christa
name: Kvartiuk, Vasyl
name: Traikova, Diana
name: Wiener, Bettina
name: Winge, Susanne
name: Petrick, Martin
name: Gotter, Christa
name: Kvartiuk, Vasyl
name: Traikova, Diana
name: Wiener, Bettina
name: Winge, Susanne
Publisher: name: Unknown
Year: 2015
Subjects: Agribusiness
Labor and Human Capital

description: Durch zurückgehende Geburtenraten, Abwanderung und gewandelte Berufsvorstellungen von Jugendlichen sehen sich landwirtschaftliche Betriebe immer weniger in der Lage, ausscheidende Mitarbeiterinnen und Mitarbeiter durch qualifizierte Nachwuchskräfte zu ersetzen. In besonderem Maße gilt dies für den traditionell durch Lohnarbeitsverhältnisse geprägten Agrarsektor in Ostdeutschland. Die Gewinnung von Arbeitnehmern ausländischer Herkunft für landwirtschaftliche Tätigkeiten rückt daher als eine mögliche Strategie ins Blickfeld vieler Betriebsleiter. Allerdings waren Migranten bisher fast ausschließlich als Erntehelfer in der ostdeutschen Landwirtschaft tätig. Gerade Einwanderer aus Osteuropa stellen jedoch auch eine mögliche Quelle für qualifizierte Fachkräfte dar. Sie werden den Weg in die ostdeutsche Landwirtschaft aber nur finden, wenn Arbeitgeber und Vermittlungsagenturen sie gezielt über ihre Beschäftigungsmöglichkeiten informieren, sie durch Sprach- und Fachkurse weiterbilden und ihnen Integrationspaten zur Seite stellen. Ähnliches gilt auch für die künftige Beschäftigung von Asylsuchenden. Wenn Berufsstand und Politik sich nicht stärker als bisher um die Gewinnung von Fachkräften bemühen, wird die Beschäftigung im Agrarsektor schwinden, etwa durch die Verlagerung auf weniger arbeitsintensive Produktionsschwerpunkte.
title: Occurrence of microplastics in the effluent of wastewater treatment plants : growing threat to the environment?
Creators: name: Tirler, Christina
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Microplastic
subject: wastewater
subject: visual inspection
subject: elemental analysis
subject: freshwater system

description: Microplastics have become an emerging environmental concern. Plastic production is increasing on an international scale. Some of the plastic produced ends up in the environment as a persistent pollutant. This issue has first been raised by scientists decades ago. While consequences of macroplastics are well studied, adverse effects of microplastics are still not completely understood. Former studies focused on the occurrence and impact of microplastics in marine ecosystems. Recently, a shift towards presence and effects of microplastics on freshwater systems could be observed. In order to rate the risk, microplastics are posing to those habitats, also sources and the amount of microplastics emitted to freshwater systems have to be investigated. Wastewater treatment plants are thought to be a main contributor to microplastic pollution in freshwater systems. However little data is available on the contamination of effluent water with plastic particles in the size range below 5 mm. This is true for all countries, including Austria. Sampling and analytical methods differ widely between studies and there is still no agreed standardized analytical method. A common approach to sampling and analysing microplastics not only in wastewater is a prerequisite in order to compare data from different sources. This study intends to provide a snap shot of microplastics occurring in the effluent of an Austrian wastewater treatment plant on the one hand side. On the other hand two different methodologies to quantify microplastics were used and compared. Whilst the first methodology is based on visual inspection, the second approach is based on an elemental analysis. In 14,5 m3 of water a total of 126 microplastic particles (>1mm, <5mm) was found. Microplastics occurred in all the samples taken. Visual inspection turned out to be the favoured methodology to detect microplastic particles in wastewater samples, as the use of threshold values for the elementary analysis are not suitable for the proof of microplastic particles in wastewater.
Symmetry Nonrestoration at High Temperature in Little Higgs Models
Creators: name: Espinosa, J. R.
name: Losada, M.
name: Riotto, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A detailed study of the high temperature dynamics of the scalar sector of Little Higgs scenarios, proposed to stabilize the electroweak scale, shows that the electroweak gauge symmetry remains broken even at temperatures much larger than the electroweak scale. Although we give explicit results for a particular modification of the Littlest Higgs model, we expect that the main features are generic. As a spin-off, we introduce a novel way of dealing with scalar fluctuations in nonlinear sigma models, which might be of interest for phenomenological applications.
description: 23 pages, LaTeX, 4 figures
Bottom-Flavored Mono-Tau Tails at the LHC
Creators: name: Marzocca, David
name: Min, Ui
name: Son, Minho
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the effective field theory sensitivity of an LHC analysis for the $τν$ final state with an associated b-jet. To illustrate the improvement due to the b-tagging, we first recast the recent CMS analysis in the $τν$ channel, using an integrated luminosity of 35.9 fb$^{-1}$ at $\sqrt{s}=13$ TeV, and provide limits on all the dimension-six effective operators which contribute to the process. The expected limits from the b-tagged analysis are then derived and compared. We find an improvement of approximately $\sim 30\%$ in the bounds for operators with a b quark. We also discuss in detail possible angular observables to be used as a discriminator between dimension-six operators with different Lorentz structure. Finally, we study the impact of these limits on some simplified scenarios aimed at addressing the observed deviations from the Standard Model in lepton flavor universality ratios of semileptonic B-meson decays. In particular, we compare the collider limits on those scenarios set by our analysis either with or without the b-tagging, assuming an integrated luminosity of 300 fb$^{-1}$, with relevant low-energy flavor measurements.
description: 41 pages, 13 figures. The complete chi-square function for our CMS recast is shared in ancillary files. v2: references added, matches the version to be published in JHEP
Centrality Dependence of Thermal Parameters Deduced from Hadron Multiplicities in Au + Au Collisions at sqrt{s_{NN}} = 130 GeV
Creators: name: Cleymans, J.
name: Kampfer, B.
name: Kaneta, M.
name: Wheaton, S.
name: Xu, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the centrality dependence of thermal parameters deduced from hadron m ultiplicities in Au + Au collisions at $\sqrt{s_{NN}} = 130 GeV$. While the chemical freeze-out temperature and chemical potentials are found to be roughly centrality-independent, the strangeness saturation factor $γ_S$ increases with participant number towards unity, supporting the assumption of equilibrium freeze-out conditions in central collisions.
Strong CP violation in spin-1/2 singly charmed baryons
Creators: name: Ünal, Y.
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We report on the calculation of the CP-violating form factor $F_3$ and the corresponding electric dipole moment for charmed baryons in the spin-1/2 sector generated by the QCD $θ$-term. We work in the framework of covariant baryon chiral perturbation theory within the extended-on-mass-shell renormalization scheme up to next-to-leading order in the chiral expansion.
description: 13 pages, 2 figures, extended introduction and discussion, version accepted for publication in JHEP
Field-induced spin reorientation in the antiferromagnetic Dirac material EuMnBi$_2$ revealed by neutron and resonant x-ray diffraction
Creators: name: Masuda, H.
name: Sakai, H.
name: Takahashi, H.
name: Yamasaki, Y.
name: Nakao, A.
name: Moyoshi, T.
name: Nakao, H.
name: Murakami, Y.
name: Arima, T.
name: Ishiwata, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Field-dependent magnetic structure of a layered Dirac material EuMnBi$_2$ was investigated in detail by the single crystal neutron diffraction and the resonant x-ray magnetic diffraction techniques. On the basis of the reflection conditions in the antiferromagnetic phase at zero field, the Eu moments were found to be ordered ferromagnetically within the $ab$ plane and stacked antiferromagnetically along the $c$ axis in the sequence of up-up-down-down. Upon the spin-flop transition under the magnetic field parallel to the $c$ axis, the Eu moments are reoriented from the $c$ to the $a$ or $b$ directions forming two kinds of spin-flop domains, whereas the antiferromagnetic structure of the Mn sublattice remains intact as revealed by the quantitative analysis of the change in the neutron diffraction intensities. The present study provides a concrete basis to discuss the dominant role of the Eu sublattice on the enhanced two-dimensionality of the Dirac fermion transport in EuMnBi$_2$.
description: 16 pages, 5 figures, accepted in PRB
Didymium columellacavum Hochg., Gottsb. & Nann.
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Didymiaceae
Didymium
Didymium columellacavum

description: * Didymium columellacavum Hochg., Gottsb. & Nann. -Bremek. (27 FC, 9 loc, 6 ps, Fig. 5A)
 Loc. 3 Mahé: On branch of living palm, AM3061, TK2818. Loc. 4 Mahé: On stem surface of living palm Nephrosperma vanhoutteanum, AM 3070, TK2834 (2FC). Loc. 6 Mahé: On fallen leaves of Cinnamomum verum, AM 3083, TK2874 (2FC). Loc. 7 Mahé: On fallen leaves, AM3107, TK2925 (2FC). Loc. 8 Mahé: On fallen leaves of Artocarpus altilis, AM 3117, TK2940 (2FC). Loc. 10 Mahé: On fallen palm leaf of Pandanus balfourii, AM 3149, TK3018 (2FC). On fallen palm leaf, AM3146, TK3007 (4FC), AM3147, TK3011 (4FC), AM3148, TK3015 (3FC). Loc. 15 Praslin: On wood and bark of rotten branch of Cinnamomum verum, AM2743, TK2078. Loc. 30 La Digue: On fallen leaves of Mangifera indica, AM2879, TK2407 (2FC) det. MM. Loc. 42c La Digue: On fallen green leaves of Calophyllum inophyllum, AM2966, TK2532 (2FC).
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 229, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410