cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Human health risk exposure and ecological risk assessment of potentially toxic element pollution in agricultural soils in the district of Frydek Mistek, Czech Republic: a sample location approach
Creators: name: Agyeman, Prince Chapman
name: John, Kingsley
name: Kebonye, Ndiye Michael
name: Borůvka, Luboš
name: Vašát, Radim
name: Drábek, Ondřej
name: Němeček, Karel
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer

description: Additional file 1: Table S1. Exposure factors used in CDI estimation for non-carcinogenic and carcinogenic risk. Table S2. Shows the calculated single pollution index (PI) for the EAV, and the results suggested that the pollution level of the PTEs ranged from low to high. Table S3. Indicates the esctimated ecological risk index of the study area (geochemical background value used was European average value). Table S4. Indicates the esctimated risk index and pollution load index of the study area (local background value used was European average value). Table S5. Indicates the estimated single pollution index of the study area (geochemical background value used was local background value). Table S6. Indicates the estimated ecological risk of the study area (geochemical background value used was local background value) (geochemical background value used was local background value). Table S7. Children chronic daily intake total for PTEs (non carcinogenic). Table S8. Adult chronic daily intake total for PTEs (non carcinogenic). Table S9. Children Hazard quotient and health index. Table S10. Adult Hazard quotient and health index. Table S11. Children carcinogenic risk and total carcinogenic risk. Table S12. Adult carcinogenic risk and total carcinogenic risk. Table S13. Children chronic dailiy intake (carcinogenic risk). Table S14. Adult chronic daily intake (carcinogenic risk). Table S15. Raw data used for the study.
Off-axis dipole forces in optical tweezers by an optical analog of the {Magnus} effect
Creators: name: Spreeuw, Robert J. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is shown that a circular dipole can deflect the focused laser beam that induces it, and will experience a corresponding transverse force. Quantitative expressions are derived for Gaussian and angular tophat beams, while the effects vanish in the plane-wave limit. The phenomena are analogous to the Magnus effect pushing a spinning ball onto a curved trajectory. The optical case originates in the coupling of spin and orbital angular momentum of the dipole and the light. In optical tweezers the force causes off-axis displacement of the trapping position of an atom by a spin-dependent amount up to $λ/2π$, set by the direction of a magnetic field. This suggests direct methods to demonstrate and explore these effects, for instance to induce spin-dependent motion.
description: 5 pages, 3 figures; plus 3 pages Supplemental Material (accepted version)
Human Activity Recognition using Multi-Head CNN followed by LSTM
Creators: name: Ahmad, Waqar
name: Kazmi, Misbah
name: Ali, Hazrat
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This study presents a novel method to recognize human physical activities using CNN followed by LSTM. Achieving high accuracy by traditional machine learning algorithms, (such as SVM, KNN and random forest method) is a challenging task because the data acquired from the wearable sensors like accelerometer and gyroscope is a time-series data. So, to achieve high accuracy, we propose a multi-head CNN model comprising of three CNNs to extract features for the data acquired from different sensors and all three CNNs are then merged, which are followed by an LSTM layer and a dense layer. The configuration of all three CNNs is kept the same so that the same number of features are obtained for every input to CNN. By using the proposed method, we achieve state-of-the-art accuracy, which is comparable to traditional machine learning algorithms and other deep neural network algorithms.
description: IEEE ICET 2019
volume6-issue7(8)-2017 new.pdf
Creators: name: S, Sachin B
name: B, Ramesh
Publisher: name: figshare
Year: 2020
Subjects: subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: 140204 Economics of Education

description: Festival expenditures amount to over 15 percent of a household’s annual expenditures in rural India. Yet the area has studied by few. This paper uses quantitative data from the Tumkur district villages of Karnataka state to show that festivals are important public goods in the village but neither a pure entertainment motive, nor an altruistic desire to contribute to a public event seem to explain their size. Households who spend money on festivals, especially the rural poor suffer a lot with financial crunches. Descriptive research design was used for this study, purposeful sampling design was adopted to collect data, and structured interview schedule was applied to collect data. SPSS 17.0 software was adopted to compute data.
Phalium LINK 1807
Creators: name: Tan, S. K.
name: Ng, H. E.
name: Nguang, L. H. S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cassidae
Phalium

description: Phalium Link, 1807
  Type species.  — Buccinum glaucum Linnaeus, 1758, subsequent designation by Dall (1909).
description: Published as part of Tan, S. K., Ng, H. E. & Nguang, L. H. S., 2013, A New Species Of Phalium Link, 1807 (Gastropoda: Tonnoidea: Cassidae) From The Sunda Shelf, pp. 507-514 in Raffles Bulletin of Zoology 61 (2) on page 508, DOI: 10.5281/zenodo.4508648
Additional file 1 of The effect of passive mobilization associated with blood flow restriction and combined with electrical stimulation on cardiorespiratory safety, neuromuscular adaptations, physical function, and quality of life in comatose patients in an ICU: a randomized controlled clinical trial
Creators: name: de Campos Biazon, Thaís Marina Pires
name: Libardi, Cleiton Augusto
name: Junior, Jose Carlos Bonjorno
name: Caruso, Flávia Rossi
name: da Silva Destro, Tamara Rodrigues
name: Molina, Naiara Garcia
name: Borghi-Silva, Audrey
name: Mendes, Renata Gonçalves
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents*.
Representations of polygons of finite groups
Creators: name: Kapovich, Michael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F69, 20G05

description: We construct discrete and faithful representations into the isometry group of a hyperbolic space of the fundamental groups of acute negatively curved even-sided polygons of finite groups.
description: Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol9/paper43.abs.html
Charge Transport Through Open, Driven Two-Level Systems with Dissipation
Creators: name: Brandes, T.
name: Aguado, R.
name: Platero, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive a Floquet-like formalism to calculate the stationary average current through an AC driven double quantum dot in presence of dissipation. The method allows us to take into account arbitrary coupling strengths both of a time-dependent field and a bosonic environment. We numerical evaluate a truncation scheme and compare with analytical, perturbative results such as the Tien-Gordon formula.
description: 14 pages, 6 figures. To appear in Phys. Rev. B
Sparbambus Zhang & Woon & Li 2006, new genus
Creators: name: Zhang, J. X.
name: Woon, Jeremy R. W.
name: Li, Daiqin
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Sparbambus

description: Sparbambus, new genus
  Type species. –  Sparbambus gombakensis, new species.
  Diagnosis. –  This new genus is similar to all other spartaeine genera in the presence of a palpal tegular furrow, but it differs from the latter (except Wanlessia) in males by the well developed and petallike conductor of palpal organ, the large and wide retrolateral tibial apophysis; and in females by the concave line between PMEs and PLEs, and the shallow depressions on carapace. It also resembles Wanlessia Wijesinghe, 1992 in having a well developed conductor of male palpal organ, and Phaeacius Simon, 1900 in having a flat body and a small hump on copulatory duct. It can be easily distinguished from Wanlessia in males by the large PMEs, the flat body, the large and wide retrolateral tibial apophysis, and the presence of dorsal tibial apophysis. It differs from the Phaeacius in males by the well developed palpal conductor, the wide and weakly sclerotized retrolateral tibial apophysis, and the presence of dorsal tibial apophysis; and in females by the concave line between PMEs and PLEs, the shallow depressions on carapace, and the large spermathecae.
  Description. –  See following descriptions of the new species.
  Etymology. –  The generic name is from the Indian bambu, and refers the habitat of the type species; “Spar” refers the subfamily Spartaeinae, which the new genus is attributed to; masculine in gender.
description: Published as part of Zhang, J. X., Woon, Jeremy R. W. & Li, Daiqin, 2006, A New Genus And Species Of Jumping Spiders (Araneae: Salticidae: Spartaeinae) From Malaysia, pp. 241-244 in Raffles Bulletin of Zoology 54 (2) on page 242, DOI: 10.5281/zenodo.4508855
Thermopower induced by a supercurrent in superconductor-normal-metal structures
Creators: name: Virtanen, Pauli
name: Heikkila, Tero T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We examine the thermopower Q of a mesoscopic normal-metal (N) wire in contact to superconducting (S) segments and show that even with electron-hole symmetry, Q may become finite due to the presence of supercurrents. Moreover, we show how the dominant part of Q can be directly related to the equilibrium supercurrents in the structure. In general, a finite thermopower appears both between the N reservoirs and the superconductors, and between the N reservoirs themselves. The latter, however, strongly depends on the geometrical symmetry of the structure.
description: 4 pages, 4 figures; text compacted and material added
Hubble Space Telescope Observations of Novae in M49
Creators: name: Ferrarese, Laura
name: Cote, Patrick
name: Jordan, Andres
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A search for novae in M49 (NGC 4472) has been undertaken with the Hubble Space Telescope. A 55-day observing campaign in F555W (19 epochs) and F814W (five epochs) has led to the discovery of nine novae. We find that M49 may be under-abundant in slow, faint novae relative to the Milky Way and M31. Instead, the decline rates of the M49 novae are remarkably similar to those of novae in the LMC. This fact argues against a simple classification of novae in "bulge" and "disk" sub-classes. We examine the Maximum-Magnitude versus Rate of Decline (MMRD) relation for novae in M49, finding only marginal agreement with the Galactic and M31 MMRD relations. A recalibration of the Buscombe-de Vaucouleurs relation gives an absolute magnitude 15 days past maximum of M_{V,15} = -6.36+/-0.19, which is substantially brighter than previous calibrations based on Galactic novae. Monte Carlo simulations yield a global nova rate for M49 of 100{+35}{-30} per year, and a luminosity-specific nova rate in the range ν_K = 1.7-2.5 per year per 10^{-10} L_K,solar. These rates are far lower than those predicted by current models of nova production in elliptical galaxies and may point to a relative scarity of novae progenitors, or an increased recurrence timescale, in early-type environments.
description: ApJ, accepted. Scheduled to appear in the December 20, 2003 issue
Nosema ceranae and RNA viruses in honey bee populations of Cuba
Creators: name: Anais Rodríguez Luis
name: García, Carlos Ariel Yadró
name: Invernizzi, Ciro
name: Branchiccela, Belén
name: Piñeiro, Adolfo Mauricio Pérez
name: Morfi, Alejandro Pérez
name: Zunino, Pablo
name: Antúnez, Karina
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Cuba is a tropical island where beekeeping is an important economic activity. Cuban honey bees have a European origin, being hybrids of Apis mellifera mellifera and A. m. ligustica. Although Varroa destructor and Nosema are widely distributed in the country, there is no information regarding Nosema species identity and the presence of honey bee viruses. In this study, we report for the first time the presence of Nosema ceranae, Acute bee paralysis virus (ABPV), Deformed wing virus (DWV) and Sacbrood bee virus (SBV) in Cuba. Their detection in different provinces and the simultaneous infection of colonies by several viruses indicate that they are widely spread in Cuba. On the other side, N. apis and Black queen cell virus (BQCV) were not detected.
Modeling stylized facts for financial time series
Creators: name: Krivoruchenko, M. I.
name: Alessio, E.
name: Frappietro, V.
name: Streckert, L. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Multivariate probability density functions of returns are constructed in order to model the empirical behavior of returns in a financial time series. They describe the well-established deviations from the Gaussian random walk, such as an approximate scaling and heavy tails of the return distributions, long-ranged volatility-volatility correlations (volatility clustering) and return-volatility correlations (leverage effect). The model is tested successfully to fit joint distributions of the 100+ years of daily price returns of the Dow Jones 30 Industrial Average.
description: Contribution to Proceedings of the Conference "Applications of Physics in Financial Analysis 4", Warsaw, 13-15 November, 2003. Four pages Elsevier LaTeX. Transparencies of the talk given by M.I.K. are attached, PostScript 32 pages. PDF file of the published contribution to the APFA4 Proceedings with removed misprints, introduced by a typesetter of physica A, is attached
A Kaluza-Klein Inspired Brans-Dicke Gravity with Dark Matter and Dark Energy Model
Creators: name: Pongkitivanichkul, Chakrit
name: Samart, Daris
name: Thongyoi, Nakorn
name: Lunrasri, Nutthaphat
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose the Kaluza-Klein inspired Brans-Dicke gravity model containing possible existence of dark matter and dark energy. The massive scalar field coupled with gravity in 5 dimensional spacetime can be reduced to 4 dimensional gravity along with the dilaton $ϕ$, gauge fields $A_μ$, and the tower of scalar fields $η_n$. Two additional gauge fields are introduced to form "Cosmic Triad" vector field scenario. We then use the dynamical system approach to analyze the critical points and their corresponding physical parameters. We found that in the case where only the zero mode of the Kaluza-Klein scalar is decoupled, the system contains both dark matter and dark energy phase depending on the mass parameter with the presence of the gauge field.
description: 29 pages, 2 figures
The moral foundation of collective action against economic crimes
Creators: name: Abdullah, Daud Vicary
name: Askari, Hossein
name: Mirakhor, Abbas
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: Economic Crimes, Golden Rule, Globalization, Moral, Foundation, Cooperation, Harm, Consent
subject: A13, A12

description: In recent years, economic and financial crimes have been increasing at a fast pace. No country, society, culture or community has been immune from its ravages, yet the international community has failed to cooperate to find a solution. A reason for this failure may be the lack of a clearly articulated moral foundation. A universal moral principle that could serve as the foundation must be concerned with harm and its prevention, and attract universal consent. We argue that the Golden Rule satisfies these requirements. The golden rule of “no harm” buttressed by the specificity of the four categories of generic rights and basic good, i.e. human dignity, trust, contract, and property, could emerge as a consensual global moral principle and allow the development of legislation, laws, standards, codes and conventions that would be accepted and respected by the international community in the fight against economic crimes. JEL codes: A13, A12
description: PSL Quarterly Review, V. 68, N. 272 (2015)
Complementarity between environmental efficiency and labour productivity in a cumulative growth process
Creators: name: Guarini, Giulio
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: environmental efficiency, labour productivity, economic growth
subject: O3, O4, Q5

description: The aim of this paper is to analyse the potential complementarity between environmental efficiency and labour productivity in both theoretical and empirical terms. We define environmental efficiency as the ratio between income and pollutant emissions, and its growth rate may be a proxy of eco-innovations. As in the standard Post-Keynesian approach, the growth rate of labour productivity is considered here a proxy of technological innovations. The paper analyses first the theoretical elements that justify the hypothesis of a positive correlation between the two efficiencies. It then illustrates, through a Structuralist-Keynesian baseline model, how this complementarity is a necessary condition for cumulative growth that is socially and ecologically sustainable. It finally empirically investigates this complementarity through a dynamic panel analysis of the dynamics of European countries in the period 1992-2012. JEL codes: O3, O4, Q5
description: PSL Quarterly Review, V. 68, N. 272 (2015)
Introduction
Creators: name: D'Ippoliti, Carlo
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: code of ethics, scientific misbehaviour, open access
subject: Y20, A11, A12

description: The short editorial introduces to the new issue of the Review. Starting from the 2015 volume, the journal is changing its copyright policy as well as its open access policy. Curiously often, economists consider everyone susceptible to respond to incentives, except the economists themselves. On the contrary, as shown for example by Necker (2014), “scientific misconduct” is very much diffused in economics, with e.g. almost one in five economists refraining from citing works in low-ranking journals, more than half (51.9%) admitting of not always checking the contents of the works they cite, and lower but equally alarming percentages of economists admitting of copying and plagiarising or massaging the data and faking empirical results. Therefore, while in some cases it may amount to little more than lip service, restating basic rules of ethics seems all the more relevant within the discipline of economics, and the present editorial wishes to lay down the minimum requirements of ethical behaviour expected from authors, editors, and referees. JEL codes: Y20, A11, A12
description: PSL Quarterly Review, V. 68, N. 272 (2015)
Strings in the Eta Carinae Nebula: Hypersonic Radiative Cosmic Bullets
Creators: name: Poludnenko, A. Y.
name: Frank, A.
name: Mitran, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a numerical study focusing on the propagation of a hypersonic bullet subject to radiative cooling. Our goal is to explore the feasibility of such a model for the formation of ``strings'' observed in the Eta Carinae Homunculus nebula. Our simulations were performed in cylindrical symmetry with the adaptive mesh refinement code AstroBEAR. The radiative cooling of the system was followed using the cooling curve by Dalgarno & McCray (1972). In this letter we discuss the evolution and overall morphology of the system as well as key kinematic properties. We find that radiative bullets can produce structures with properties similar to those of the Eta Carinae strings, i.e. high length-to-width ratios and Hubble-type flows in the form of a linear velocity increase from the base of the wake to the bullet head. These features, along with the appearance of periodic ``ring-like'' structures, may also make this model applicable to other astrophysical systems such as planetary nebulae, e.g. CRL 618 and NGC 6543, young stellar objects, etc.
description: 6 pages, 2 figures. Submitted to the Astrophysical Journal; for additional results and simulation animations see http://www.pas.rochester.edu/~wma
Everett's Theory of the Universal Wave Function
Creators: name: Wu, Biao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: This is a tutorial for the many-worlds theory by Everett, which includes some of my personal views. It has two main parts.The first main part shows the emergence of many worlds in a universe consisting of only a Mach-Zehnder interferometer. The second main part is an abridgment of Everett's long thesis, where his theory was originally elaborated in detail with clarity and rigor. Some minor comments are added in the abridgment in light of recent developments. Even if you do not agree to Everett's view, you will still learn a great deal from his generalization of the uncertainty relation, his unique way of defining entanglement (or canonical correlation), his formulation of quantum measurement using Hamiltonian, and his relative state.
description: 18 pages, 3 figures
Capital Market Inflation in Emerging Markets: the Cases of Brazil and South Korea
Creators: name: Bonizzi, Bruno
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: Finance; Asset price inflation; Foreign Investors
subject: F65, F36, G12, O57

description: The paper considers the cases of Brazil and South Korea, two key emerging markets, to assess the relationship between capital flows and equity prices. Building on Jan Toporowski’s theory of capital market inflation, we argue that foreign capital inflows into the equity markets of emerging economies have substantially contributed to creating the excess liquidity that gives rise to capital market inflation there. Particular attention is given to the idea that equity flows can in many cases bring upward pressure on stock prices in emerging markets. Both the fast and unrestricted financial integration of Brazil and South Korea into global financial markets, and the two countries’ considerable financial and economic size, justify the choice of these two case studies. The empirical evidence, especially concerning capital flows and equity prices in relation to the impact of foreign investors, is consistent with the hypothesis of capital market inflation in both countries. Jel codes: F65, F36, G12, O57
description: PSL Quarterly Review, V. 68, N. 273 (2015)
Implementation of a motion compensation system for high resolution brain positron emission tomography
Creators: name: Dinelle, Katherine
Publisher: name: University of British Columbia
Year: 2011

description: In this work we implement and validate a compensation method for subject motion occurring during high resolution brain positron emission tomography (PET). Head motion is acknowledged as a significant source of resolution degradation in PET brain imaging; especially at the level of resolution, (2.5 mm)³ , available in the tomograph currently installed at our research centre. Several methods have been developed which are able to partially correct for this motion, however none provide the level of correction accuracy as the method implemented here. An infrared motion tracking system was installed to collect subject motion information during PET scanning. In order to apply these measurements to the PET data, a method for aligning the two reference frames both temporally and spatially was developed. Installation of the motion tracking system allowed an in-depth analysis of typical subject motions encountered during scanning. This permitted us to motivate the need for motion correction, and to identify activities causing head motion which may be limited prior to scanning. Motion corrections based on the acquired data were incorporated into a statistical reconstruction algorithm. First, the position and orientation of each motion impacted event was corrected back to a common reference position. Second, compensation was applied for variations in the relationship between the location of an emission event and the sensitivity of the detectors that measured it due to motion. The consideration of variations in tomograph sensitivity separates this motion correction method from those attempted previously. Experimental validation using phantom data revealed that the motion correction was able to compensate for translations ranging from a few millimeters to a few centimeters. When applied to human data, differences in the quantitative results for images reconstructed with and without motion correction were on the order of those changes we are attempting to study. The motion correction algorithm was developed by a previous student in our group (A. Rahmim), while implementation and testing of the tracking system, and validation of the motion correction algorithm with phantom and human studies was completed as part of this work. Routine application of this motion correction scheme will improve the effective resolution of the tomograph, allowing improved quantification.
Production of West Indian Hot Pepper Seed
Creators: name: Cooper, Brian
name: Gordon, Monica
name: Cooper, Brian
name: Gordon, Monica
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The paper describes t:fforts in Antigua during the last four years to produce good quality seed of West Indies type hot peppers with both red and yellow fruit suitable for export to Europe and North America. Activities have included characterization of Scoth Bonnet and lantern type peppers, selection for suitable fruit shape, sampling and analysis of plant tissues for virus infection and development of methods for seed extraction. Good yield of high quality seed, treated for TMV type viruses have been produced a,nd made available throughout the O.E.C.S. countries.
Oil and its markets
Creators: name: Roncaglia, Alessandro
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: Oil, Shale oil, Brent, Oligopoly
subject: L13, L71, Q40, Q41, Q43

description: Oil markets are extremely complex, being characterized by the interplay of economic, political, technological and ecological factors. The paper reviews the various critiques of the idea that oil prices are determined by supply and demand, with supply scarcity-constrained, and briefly recalls the model of ‘trilateral oligopoly’. This interpretative lens is applied with special reference to the golden period of the oil majors and the increasing importance of OPEC in the 1970s. However, the counter-crisis in the 1980s highlighted the limits of OPEC’s hold on the markets and the increasing role of financial markets in the determination of oil prices. Considering shale oil as an instance of technical change and its importance in the oil sector, the paper draws some basic conclusions. Among these is the author’s forecast that oil prices are likely to remain low in the medium run. JEL codes: L13, L71, Q40, Q41, Q43
description: PSL Quarterly Review, V. 68, N. 273 (2015)
Making the ECB the central bank of a non-federal coalition of states
Creators: name: Tonveronachi, Mario
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: euro, European Central Bank, yield curve
subject: E58, F33, F45

description: The recent euro area crisis increased fragmentation, thus further exposing the limits of the single monetary policy. The absence of a common fiscal authority impedes the birth of a single European financial market, which being at the centre of the European project would require financial operators to refer to a single risk-free yield curve. The paper proposes that by issuing debt certificates encompassing the entire maturity spectrum, the European Central Bank might establish a single risk-free yield curve. The advantage of the proposal is that it meets the objective of developing a single financial market without requiring any treaty changes. The recent crisis has made the policymaking and academic discussions focus on how to avoid serious financial disruptions such as the break-up of the euro area. However, it is equally important to look at the coherence and efficacy of the institutional and structural design of the euro area in more tranquil times, as done with the present proposal. JEL codes: E58, F33, F45
description: PSL Quarterly Review, V. 68, N. 273 (2015)
Semiclassical dynamics of domain walls in the one-dimensional Ising ferromagnet in a transverse field
Creators: name: Ivanov, B. A.
name: Mikeska, H. -J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate analytically and numerically the dynamics of domain walls in a spin chain with ferromagnetic Ising interaction and subject to an external magnetic field perpendicular to the easy magnetization axis (transverse field Ising model). The analytical results obtained within the continuum approximation and numerical simulations performed for discrete classical model are used to analyze the quantum properties of domain walls using the semiclassical approximation. We show that the domain wall spectrum shows a band structure consisting of 2$S$ non-intersecting zones.
description: 15 pages, 9 figures
Editorial: Paolo Sylos Labini (1920-2005)
Creators: name: D'Ippoliti, Carlo
Publisher: name: PSL Quarterly Review
Year: 2015
Subjects: subject: Sylos Labini, crisis, oligopoly, Banca Nazionale del Lavoro Quarterly Review
subject: B31, B32, B22

description: The article introduces to the new issue of the Review, which roughly corresponds with the tenth anniversary of the passing away of Paolo Sylos Labini (PSL). As explained by Roncaglia (2008), the very name of the PSL Quarterly Review is dedicated to the Italian economist, due among other things to the long run relation between PSL and the old series of this journal. The paper discusses PSL’s contributions in the Banca Nazionale del Lavoro Quarterly Review, focusing on his forecast of the recent global crisis, published in 2003. This contribution already contained precise reference – often backed by data for the USA and other economies – to trends and ‘explanations’ of the crisis that several mainstream economists (e.g. Robert Lucas) claimed were impossible to see before the crisis itself. These include the accumulation of excessive household debt, excessive complacency on the side of the Fed, speculative bubbles in the US stock exchange and real estate markets, and the deflationary pressures caused by radical technological innovations. PSL’s example shows that the economists can and often do provide useful services to society, provided they build on solid theories. JEL: B31, B32, B22
description: PSL Quarterly Review, V. 68, N. 274 (2015)
Protocol Discovery for the Quantum Control of Majoranas by Differentiable Programming and Natural Evolution Strategies
Creators: name: Coopmans, Luuk
name: Luo, Di
name: Kells, Graham
name: Clark, Bryan K.
name: Carrasquilla, Juan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum control, which refers to the active manipulation of physical systems described by the laws of quantum mechanics, constitutes an essential ingredient for the development of quantum technology. Here we apply Differentiable Programming (DP) and Natural Evolution Strategies (NES) to the optimal transport of Majorana zero modes in superconducting nanowires, a key element to the success of Majorana-based topological quantum computation. We formulate the motion control of Majorana zero modes as an optimization problem for which we propose a new categorization of four different regimes with respect to the critical velocity of the system and the total transport time. In addition to correctly recovering the anticipated smooth protocols in the adiabatic regime, our algorithms uncover efficient but strikingly counter-intuitive motion strategies in the non-adiabatic regime. The emergent picture reveals a simple but high fidelity strategy that makes use of pulse-like jumps at the beginning and the end of the protocol with a period of constant velocity in between the jumps, which we dub the jump-move-jump protocol. We provide a transparent semi-analytical picture, which uses the sudden approximation and a reformulation of the Majorana motion in a moving frame, to illuminate the key characteristics of the jump-move-jump control strategy. We verify that the jump-move-jump protocol remains robust against the presence of interactions or disorder, and corroborate its high efficacy on a realistic proximity coupled nanowire model. Our results demonstrate that machine learning for quantum control can be applied efficiently to quantum many-body dynamical systems with performance levels that make it relevant to the realization of large-scale quantum technology.
description: Revised manuscript: Addition of results on proximity coupled semiconducting nanowire, disorder and interactions. Extra discussions and new conclusion. 18 pages, 8 figures + appendix (12 pages, 8 figures)
The local Coulombic Monte Carlo algorithm : applications to the electric double layer
Creators: name: Thompson, David
Publisher: name: University of British Columbia
Year: 2011

description: A reformulation of the Coulomb problem, using a local Coulomb algorithm based on auxiliary fields, has been extended to slab and quasi-2D geometries. It has been implemented using Metropolis Monte Carlo and Gaussian charge interpolation functions. We have established the accuracy of the algorithm by generating effective pair potentials. Using this implementation, the Gouy-Chapman problem was numerically resolved for constant potential slab boundaries. In the low coupling limit, we find excellent aggreement with analytic solutions. In the high coupling regime, we find agreement with the analytic theory in the limit of large wall separation. Using the contact value theorem, we calculate the pressure experienced by like-charged equipotential walls. The parameter space we consider pertains to many interesting biomaterials ranging from monovalent biomembranes to spermidine DNA. The numerical results show attractions mediated by counter-ions between the like-charged equipotential slab boundaries. We also extend the implementation to allow for inhomogeneous dielectric backgrounds. The effect of a thin adsorbed layer of solvent is considered for an electrolyte system bounded by isolated electrodes. We show that a reduction in the dielectric value of this adsorbed layer results in a depletion of ions near the electrodes, even though the electrodes carry zero total charge. The applications considered show the versatility and accuracy of our implementation.
A Dor - An Eclipsing Subdwarf - Brown Dwarf Binary
Creators: name: Rauch, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AA Dor is an eclipsing, close, post common-envelope binary (PCEB) consisting of a sdOB primary star and an unseen cool companion with an extraordinary low mass. The evolution of this system appears enigmatic - results of a recent spectral analysis of the primary has shown that the secondary is formally a brown dwarf. We present results of a spectral analysis which is based on phase-resolved high-resolution and high-SN spectroscopy.
description: 1 page, 1 figure
Tomato Germplasm Evaluation for Growth and Productivity in the Virgin Islands
Creators: name: Collingwood, Charles D.
name: Crossman, Stafford M.A.
name: Palada, Manuel C.
name: Collingwood, Charles D.
name: Crossman, Stafford M.A.
name: Palada, Manuel C.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Five tomato (Lycopersicon esculentum) cultivars, Calypso, Celebrity, Caraibo, Floradade and UH-N69, were field grown during two seasons (spring of 1991 and 1992) to evaluate their growth characteristics and productivity in the U.S. Virgin Islands. In 1991, highest total yields of 44.9, 41.7 and 40.3 ton/ha were produced by UH-N69, Floradade and Celebrity; respectively. Cultivars UH-N69 and Floradade produced the largest quantity of marketable fruits (41.8 and 38.2 ton/ha, respectively). The mean fruit size of Floradade (174 g), Celebrity (170 g), Calypso (169 g) and UH-N69 (163 g) were all significantly larger than fruits of Caraibo (125 g). Fruits of Celebrity and Calypso contained the highest percentage of total soluble solids of 4.5 and 4.7%, respectively. In 1992, yields of all cultivars were generally lower than those obtained in 1991 due to severe infestation of whiteflies and disease infection. Cultivars UH-N69 and Celebrity produced high marketable yields of 32.3 and 30.0 ton/ha, respectively. These cultivars displayed more vigorous growth resulting in plants that were taller than other cultivars. Fruits produced by Celebrity, Calypso and Floradade were larger than Caraibo. In these trials, Celebrity, Floradade and UH-N69 were the best cultivars for fresh market tomato production in the Virgin Islands.
Nonlinear consensus on networks: equilibria, effective resistance and trees of motifs
Creators: name: Homs-Dones, Marc
name: Devriendt, Karel
name: Lambiotte, Renaud
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 05C82, 91D30, 34A34, 34B45

description: We study a generic family of nonlinear dynamics on undirected networks generalising linear consensus. We find a compact expression for its equilibrium points in terms of the topology of the network and classify their stability using the effective resistance of the underlying graph equipped with appropriate weights. Our general results are applied to some specific networks, namely trees, cycles and complete graphs. When a network is formed by the union of two subnetworks joined in a single node, we show that the equilibrium points and stability in the whole network can be found by simply studying the smaller subnetworks instead. Applied recursively, this property opens the possibility to investigate the dynamical behaviour on families of networks made of trees of motifs.
description: 27 pages, 4 figures. Preprint - To be published in SIAM Journal on Applied Dynamical Systems
REVUE DES POLITIQUES SUR LES PESTICIDES ET LES PRODUITS VETERINAIRES DANS L’ESPACE CEDEAO
REVIEW OF POLICIES ON PESTICIDES AND VETERINARY PRODUCTS IN THE ECOWAS AREA
Creators: name: DIARRA, Amadou
name: DIARRA, Amadou
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Pesticides
subject: Veterinary Products
subject: ECOWAS AREA

description: Après 10 ans de mise en œuvre sa politique agricole commune ECOWAP, la revue de la politique sur les pesticides et les produits vétérinaires commanditée par la CEDEAO fournira des résultats d’analyse utiles pour instruire davantage la politique commune en matière de gouvernance régionale du secteur des pesticides et des produits vétérinaires pour une productivité agricole accrue en Afrique de l’Ouest. En effet, elle indiquera les réformes qu’il convient de faire aux politiques nationales des pesticides et des produits vétérinaires pour rendre effectif les directives du PRIA en la matière. Il s’agit notamment d’accroître les investissements publics et privés et de promouvoir l’entrepreneuriat agricole à travers des efforts concertés des Etats pour un développement harmonieux et accéléré du secteur agricole vers une croissance de 6% par an dans la sous-région à l’horizon 2015.
Caracterización Agronómica de Algunos Tipos de Guandul (Cajanus cajan, Millsp)
Creators: name: Saladín, F.
name: Herrera, M.
name: Nin, J.C.
name: Henríquez, F.
name: Cedano, J.
name: Saladín, F.
name: Herrera, M.
name: Nin, J.C.
name: Henríquez, F.
name: Cedano, J.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Nuevas variedades de guandul han sido introducidas al país para su utilización en la industria de enlatado y consumo fresco. Es necesario por lo tanto obtener infonnaciones básicas sobre las característica's agronómicas para dar las recomendaciones adecuadas a los agricultores. Con este fín se llevaron a cabo ensayos en las locadidades de San Cristóbal y San Juan de la Maguana para determinar el marco de plantación más adecuado y así optimiz.ar la producción. Las variedades b~jo estudio fueron Kaki Blanco, Puerto Rico y Sagarateado; como testigo utilizamos la variedad Kaki comercial. Los resultados en San Cristóbal fueron significativamente superiores en cuanto al rendimiento de las cuatro variedades a los obtenidos en San Juan de la Maguana. Con un marco de 1.50 mt., entre hileras y plantas se logró mayor rendimiento en San Cristóbal para todas las variedades.
Variational Shape Approximation of Point Set Surfaces
Creators: name: Skrodzki, Martin
name: Zimmermann, Eric
name: Polthier, Konrad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: 68U05, 68U07, 65D18

description: In this work, we present a translation of the complete pipeline for variational shape approximation (VSA) to the setting of point sets. First, we describe an explicit example for the theoretically known non-convergence of the currently available VSA approaches. The example motivates us to introduce an alternate version of VSA based on a switch operation for which we prove convergence. Second, we discuss how two operations - split and merge - can be included in a fully automatic pipeline that is in turn independent of the placement and number of initial seeds. Third and finally, we present two approaches how to obtain a simplified mesh from the output of the VSA procedure. This simplification is either based on simple plane intersection or based on a variational optimization problem. Several qualitative and quantitative results prove the relevance of our approach.
description: Corrected two formulae in the "merge" process, fixed dated that the preprint was submitted
REVUE DE LA POLITIQUE REGIONALE SUR LES INTRANTS RAPPORT DE SYNTHESE
REVIEW OF REGIONAL INPUT POLICY SUMMARY REPORT
Creators: name: Diallo, Boubacar
name: Staatz, John
name: Tasie, Oyinkan
name: Témé, Bino
name: Haggblade, Steve
name: All MSU FSG Members
name: Diallo, Boubacar
name: Staatz, John
name: Tasie, Oyinkan
name: Témé, Bino
name: Haggblade, Steve
name: All MSU FSG Members
Publisher: name: Unknown
Year: 2015
Subjects: Agricultural and Food Policy
Food Security and Poverty
International Development

description: La sous-région ouest africaine connait une faible performance de son agriculture due à la forte pression des agriculteurs sur les terres déjà dégradées, à la faible et inefficiente utilisation des intrants agricoles souvent d’une qualité très variable et de l’eau, et au faible encadrement technique du monde rural. Cette situation jumelée à la forte urbanisation et à la forte croissance démographique a amené la sous-région à dépendre de plus en plus du marché international pour son approvisionnement. A titre d’exemple, sur les 10 (dix) millions de tonnes de riz consommés en Afrique de l’Ouest, environ 50% sont importés selon la FAOSTAT. Lancée depuis 2005, la politique agricole de la CEDEAO (ECOWAP) tente d’inverser cette tendance en stimulant la production agricole par l’accroissement de la productivité, l’amélioration de l’environnement des marchés tout en veillant à la protection des populations vulnérables qui peuvent souffrir de la mise en œuvre de ces importantes réformes.
Swapping Exchange and Spin-Orbit Coupling in 2D van der Waals Heterostructures
Creators: name: Zollner, Klaus
name: Gmitra, Martin
name: Fabian, Jaroslav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The concept of swapping the two most important spin interactions -- exchange and spin-orbit coupling -- is proposed based on two-dimensional multilayer van der Waals heterostructures. Specifically, we show by performing realistic ab initio simulations, that a single device consisting of a bilayer graphene sandwiched by a 2D ferromagnet Cr$_2$Ge$_2$Te$_6$ (CGT) and a monolayer WS$_2$, is able not only to generate, but also to swap the two interactions. The highly efficient swapping is enabled by the interplay of gate-dependent layer polarization in bilayer graphene and short-range spin-orbit and exchange proximity effects affecting only the layers in contact with the sandwiching materials. We call these structures ex-so-tic, for supplying either exchange (ex) or spin-orbit (so) coupling in a single device, by gating. Such bifunctional devices demonstrate the potential of van der Waals spintronics engineering using 2D crystal multilayers.
description: 6 pages, 3 figures, 1 table + Supplemental Material