cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Search for Theta^+ and Xi^{--}_{3/2} pentaquarks in HERA-B
Creators: name: Knoepfle, K. T.
name: Zavertyaev, M.
name: Zivko, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for Theta^+(1540) and Xi^{--}_{3/2}(1862) pentaquark candidates has been performed in proton-induced reactions on C, Ti and W targets at sqrt(s) = 41.6 GeV studying the pK_s resp. Xi^-pi^- and Xi^-pi^+ (and charge conjugated) decay channels at mid-rapidity. With sensitivities of (Br)x(dsigma/dx_F) < 5 to 25 microbarn/nucleon, we find no evidence for narrow pentaquark peaks in any of the studied final states. Preliminary values for the upper limit of relative yield ratios at mid-rapidity are (Theta^+(1540)) / (Lambda(1520)) < 0.02, (Br)x(Xi^{--}_{3/2}(1862)) / (Xi(1530)^0) < 0.077, and (Br)x(Xi_bar^{++}_{3/2}(1862)) / (Xi_bar(1530)^0) < 0.058 at 95% CL.
description: 4 pages, 3 eps figures, gzipped tar file, contribution to Quark Matter 2004 conference
Characterisation of Rhizobium Sp. In Mimosa Pudica L. From Five Different Districts of Sri Lanka
Creators: name: Arrosan Rajalingam
name: Tharshika Theivendram
name: K.W.T. R. Kularathna
name: Sanath Rajapakse
Publisher: name: figshare
Year: 2021
Subjects: Biotechnology
Biochemistry

description: Biological nitrogen fixation is an important natural process widely used in agriculture and forestry. Legume plants have the ability to fix atmospheric nitrogen symbiotically with the association of Rhizobium that inhabits the root nodules of these plants.Mimosa pudica which belongs to the family Fabaceae is a weed that grows naturally in a wide range of soils and can successfully get nodulated even under harsh climatic and soil conditions. The present study was aimed at screening the Rhizobial strains of Mimosa pudica with the ability to tolerate high pH, high salinity, high temperature and drought and to identify and differentiate the best tolerant strains at a molecular level using PCR amplified Enterobacterial Repetitive Intergenic Consensus (ERIC) profiling. Plants were collected from five different districts in Sri Lanka, namely Jaffna (J), Trincomalee (T), Vavuniya (V), Mannar (M) and Kandy (K). Fresh nodules were collected and pure cultures were obtained by using ½ Lupin agar medium. Total of 25 pure colonies representing the five districts (5 from each district) were selected. These cultures were grown in ½ Lupin broth ranging the pH from 2-10, NaCl concentrations 1-5%, temperature from 25oC to 60oC and PEG from 10-30%, separately. Growth of the cultures was tested by measuring the absorbance at 600 nm. Seventeen stress tolerant isolates were selected for ERIC profiling. Among these isolates T5, M5 and V3 exhibited significant growth in a temperature range from 250C to 600C, NaCl concentration range from 1-5% and pH range from 2-10. The isolates T3, V3 and K3 were tolerant to the above mentioned salinity, pH and temperature conditions. In addition, they were resistant to high drought stress as they could grow even at a 30% PEG concentration. The isolate V5 showed tolerance to the above mentioned salinity, temperature and drought conditions as shown by T3, V3, and K3. But V5 did not show a significant growth at extreme pH values as other isolates. Out of the 17 stress tolerant isolates, we were able to distinguish 8 different banding patterns using PCR amplified ERIC profiling. Rhizobial isolates from five different districts are diverse in their stress tolerance levels for different temperature, salinity, pH and drought conditions. Among the isolates of the five sites, isolates T4, T5, V2, V3, V5, M5 and K3 were tolerant to three different stress conditions. These isolates can be used for cross inoculation with agriculturally important legumes to improve their yield and for bio fertilizer production. Further molecular characterization of these strains can be carried out with DNA sequencing.
Lepturges (Lepturges) amabilis Bates 1863
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges amabilis

description: 4. Lepturges (Lepturges) amabilis Bates, 1863
Type locality — Brazil, Amazonas: Ega [Tefé]. (MNHN). Distribution — French Guiana, Brazil (Amazonas, Mato Grosso).
 Lepturges amabilis Bates, 1863: 370; Monné, 1978a: 10, fig. 10.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Demyelinating polyradiculoneuritis in patients with multiple myeloma: the other side of bortezomib-induced neurotoxicity
Creators: name: Segolene Gendreau
name: Berzero, Giulia
name: Tafani, Camille
name: Raynouard, Igor
name: Ricard, Damien
name: Jean-Valère Malfuson
name: Viala, Karine
name: Debs, Rabab
name: Houillier, Caroline
name: Diamanti, Luca
name: Marchioni, Enrico
name: Lenglet, Timothée
name: Ouzegdouh, Maya
name: Bihan, Kevin
name: Gilardin, Laurent
name: Psimaras, Dimitri
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Neuroscience
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: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Demyelinating polyradiculoneuritis in patients with multiple myeloma: the other side of bortezomib-induced neurotoxicity
Finite orbit width effects in large aspect ratio stellarators
Creators: name: d'Herbemont, Vincent
name: Parra, Felix I.
name: Calvo, Ivan
name: Velasco, Jose Luis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: New orbit averaged equations for low collisionality neoclassical fluxes in large aspect ratio stellarators with mirror ratios close to unity are derived. The equations retain finite orbit width effects by employing the second adiabatic invariant $J$ as a velocity space coordinate and they have been implemented in the orbit-averaged neoclassical code KNOSOS. The equations are used to study the $1/ν$ regime and the lower collisionality regimes. For generic large aspect ratio stellarators with mirror ratios close to unity, as the collision frequency decreases, the $1/ν$ regime transitions directly into the $ν$ regime, without passing through a $\sqrtν$ regime. An explicit formula for the neoclassical fluxes in the $ν$ regime is obtained. The formula includes the effect of particles that transition between different types of wells. While these transitions produce stochastic scattering independent of the value of the collision frequency in velocity space, the diffusion in real space remains proportional to the collision frequency. The $\sqrtν$ regime is only recovered in large aspect ratio stellarators close to omnigeneity: large aspect ratio stellarators with large mirror ratios and optimized large aspect ratio stellarators with mirror ratios close to unity. Neoclassical transport in large aspect ratio stellarators with large mirror ratios can be calculated with the orbit-averaged equations derived by \cite{calvo17}. In these stellarators, the $\sqrtν$ regime exists in the collisionality interval $ε|\ln ε| \ll ν_{ii} R a/ρ_i v_{ti} \ll 1/ε$. In optimized large aspect ratio stellarators with mirror ratios close to unity, the $\sqrtν$ regime occurs in an interval of collisionality that depends on the deviation from omnigeneity $δ$: $δ^2 |\ln δ| \ll ν_{ii} R a/ρ_i v_{ti} \ll 1$.
description: Accepted in the Journal of Plasma Physics. 79 pages, 15 figures
Cooperatives in a Changing Global Food System
Creators: name: Seipel, Michael F.
name: Heffeman, William D.
name: Seipel, Michael F.
name: Heffeman, William D.
Publisher: name: Unknown
Year: 1997
Subjects: subject: Food Security and Poverty
subject: International Development
subject: agricultural cooperatives
subject: concentration
subject: globalization
subject: agency theory

description: This study examines how U.S. agricultural cooperatives are responding to current trends toward the globalization of the agricultural and food sector. Information from three case studies illustrates the extent to which cooperatives’ organizational structure may limit or enhance their ability to compete with investor-owned firms (IOFs) on a global scale. Concentration levels in key agricultural production, processing, and distribution markets are reviewed. Next, the report examines new global strategies being employed by IOFs and their impact on farmer-owned cooperatives. The international activities of three regional cooperatives are examined in detail and data are used to highlight advantages and disadvantages that cooperatives may experience in global competition with IOFs. Factors limiting international involvement by cooperatives include the diverse interests of their members, ties to domestic resource bases and social groups, the high risk levels and long-term nature of international investment, and symbolic barriers, including language barriers and the different connotations of the term “cooperative” in other nations. Potential advantages for cooperatives include their reputation as reliable, high-quality suppliers and ethical business partners and their ability to meet specialty, niche demand created within a global food system. Cooperatives must seek opportunities in the new global system that their organizational structure makes them uniquely qualified to fill. They must also seek member response to questions of international involvement and encourage a spirit of “permanent innovation” among cooperative members and staff. Finally, cooperatives must enhance the potential social, cultural and economic benefits from international cooperation for their membership.
Lepturges (Lepturges) anceps Gilmour 1962
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges anceps

description: 5. Lepturges (Lepturges) anceps Gilmour, 1962
Type locality — Brazil, Santa Catarina. (Herbert Schmid, Vienna). Distribution — Brazil (Mato Grosso, Goiás, Bahia to Santa Catarina), Paraguay.
 Lepturges anceps Gilmour, 1962b: 559, pl. 2, fig. 3; Monné, 1976a: 367, fig. 28; 1978a: 11.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
On Quantum Mechanics on Noncommutative Quantum Phase Space
Creators: name: Djemai, A. E. F.
name: Smail, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we develop a general framework in which Noncommutative Quantum Mechanics (NCQM) is showed to be equivalent to Quantum Mechanics (QM) on a suitable transformed Quantum Phase Space (QPS). Imposing some constraints on this particular transformation, we firstly find that the product of the two noncommutativity parameters possesses a lower bound in direct relation with Heisenberg incertitude relations, and secondly that the two parameters are equivalent but with opposite sign, up to a dimension factor depending on the physical system under study. This means that "noncommutativity" is represented by a unique parameter which may play the role of a "fundamental constant" characterizing the whole NCQPS. Within our framework, we treat some physical systems on NCQPS : free particle, harmonic oscillator, system of two-charged particles, Hydrogen atom. Among the obtained results, we discover a new phenomenon which consists to see a free particle on NCQPS as equivalent to a harmonic oscillator with Larmor frequency depending on one noncommutativity parameter, representing the same particle in the presence of a magnetic field. For the other examples, additional correction terms appear in the expression of the energy spectrum. Finally, in the two-particle system case, we emphasize the fact that for two opposite charges noncommutativity is effectively perceived with opposite sign.
description: 13 pages, no figures, some comments and references added
Marketing Coordination in Agricultural Cooperatives
Creators: name: Wissman, Roger A.
name: Wissman, Roger A.
Publisher: name: Unknown
Year: 1997
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: The use of marketing agreements adds elements of marketing coordination between members and their cooperatives. Marketing agreements used in this study included both marketing contracts signed with members and bylaw provisions that required members to market with their cooperative. Type of product marketed and related marketing services had a strong influence on the level of agreements. Except for dairy, cooperatives with marketing agreements had a greater proportionate investment in assets, especially fixed assets, than other cooperatives and were more likely to use long-term sales contracts with their customers. Dairy cooperatives had a range of bargaining and marketing relationships with their members that created a more complex asset investment relationship.
Performance of Cooperatives Handling Farm Supplies, by Region
Creators: name: Rotan, Beverly L.
name: Rotan, Beverly L.
Publisher: name: Unknown
Year: 1998
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Cooperatives
subject: farm supply
subject: region
subject: Atlantic
subject: South Central
subject: Mountain
subject: Pacific
subject: Northern Plains
subject: Lake States
subject: Corn Belt

description: This report iooks at the regional differences in trends, performances, and financial measures of 403 cooperatives. The regions represented are Atlantic, South Centrai, Mountain, Pacific, Northern Plains. Lake States, and Corn Belt. Aiso included are a consolidated balance sheet, an income statement, and financial ratios for these cooperatives
Hard X-ray flares and spectral variability in NGC 4395 ULX1
Creators: name: Ghosh, Tanuman
name: Rana, Vikram
name: Bachetti, Matteo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the detection of flaring events in NGC 4395 ULX1, a nearby ultraluminous X-ray source (ULX), for the first time, using recent XMM-NEWTON observations. The flaring episodes are spectrally harder than the steady emission intervals, resulting in higher fractional variability in the high energy regime. A thin Keplerian and a slim accretion disk provide the best-fit continuum for XMM-NEWTON spectra. All observations show a broad hump-like feature around $\sim 0.9$ keV, which can be associated with a collection of blended emission lines, and suggests the presence of a wind/outflow in this ULX through comparison with other ULXs that show a similar feature. The flaring spectra correspond to higher slim disk temperatures due to higher mass accretion rate under an advection-dominated accretion scenario. The luminosity-temperature (L-T) values in different flux states show a positive trend. When characterized with a powerlaw relation, the L-T profile is broadly consistent with both $L\propto T^2$ and $L\propto T^4$ relations for the analysed data. The empirical predictions for a slim accretion disk in the case of super-Eddington accretion onto a stellar-mass compact object is $L \propto T^2$ which is a possible scenario in ULX1. The origin of the flaring events is understood as an intrinsic change of accretion rate or presence of variable clumpy wind in the inner region of the accretion disk.
description: 15 pages, 5 figures, accepted for publication in ApJ
Teleportation on a quantum dot array
Creators: name: de Pasquale, F.
name: Giorgi, G.
name: Paganelli, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a model of quantum teleportation protocol based on a double quantum dot array. The unknown qubit is encoded using a pair of quantum dots, coupled by tunneling, with one excess electron. It is shown how to create maximally entangled states with this kind of qubits using an adiabatically increasing Coulomb repulsion between different pairs. This entangled states are exploited to perform teleportation again using an adiabatic coupling between them and the incoming unknown state. Finally, a sudden separation of Bob's qubit enables a time evolution of Alice's state providing a modified version of standard Bell measurement. Substituting the four quantum dots entangled state with a chain of coupled DQD's, a quantum channel with high fidelity arises from this scheme allowing the transmission over long distances.
description: 4 pages, 2 figures
Water Quality Trading in the United States
Creators: name: Morgan, Cynthia
name: Wolverton, Ann
name: Morgan, Cynthia
name: Wolverton, Ann
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: International Relations/Trade
subject: Resource /Energy Economics and Policy
subject: water quality
subject: market-based trading
subject: offset initiatives

description: This paper provides a systematic overview of water quality trading in the U.S. The primary source of information for this overview is a detailed database, collected and compiled by a team of researchers at Dartmouth College. This paper divides the trading programs discussed in the database into four categories: on-going offset/trading programs, one-time offset agreements, state and regional trading policies, and other projects and recent proposals that involve trading. Details discussed include: sources of the pollutant, types of pollutants traded, legal liability, main regulatory drivers, market structure, trading ratios, transaction and administrative costs, and difficulties encountered in trading. We find that trading has often been explored in the context of more stringent discharge limits, or watershed-wide caps (e.g. TMDL). The most common type of trading program in the United States is between point sources and non-point sources. Point sources are usually held liable for non-point source reductions. The pollutants most commonly traded in the U.S. are nutrients such as phosphorus and nitrogen, and almost all offset and trading programs focus on one pollutant only. However, market structures, trading ratios, and other details of the trading framework vary widely among programs.
Lepturges (Lepturges) angustatus Bates 1863
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges angustatus

description: 7. Lepturges (Lepturges) angustatus Bates, 1863
Type locality — Brazil, Amazonas: Ega [Tefé]. (MNHN). Distribution — Brazil (Amazonas, Mato Grosso).
 Lepturges angustatus Bates, 1863: 375; Monné, 1978a: 10.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Origin and Interpretation of the Custom of Placing Objects in the Mouth of the Deceased in Ancient China.pdf
Creators: name: Marinova, Maria
Publisher: name: figshare
Year: 2021
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: History

description: The research work comprises an outline of the historical development and the varieties of the custom of placing an object in the mouth of the deceased in ancient China, and also examines the symbolic connotations of this funeral rite.
On the multiple generations of planetary embryos
Creators: name: Voelkel, Oliver
name: Klahr, Hubert
name: Mordasini, Christoph
name: Emsenhuber, Alexandre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Global models of planet formation tend to begin with an initial set of planetary embryos for the sake simplicity. While this approach gives valuable insights on the evolution of the initial embryos, the initial distribution itself is a bold assumption. Limiting oneself to an initial distribution may neglect essential physics that precedes, or follows said initial distribution. We wish to investigate the effect of dynamic planetary embryo formation on the formation of planetary systems. The presented framework begins with an initial disk of gas, dust and pebbles. The disk evolution, the formation of planetesimals and the formation of planetary embryos is modeled consistently. Embryos then grow by pebble, planetesimal and eventually gas accretion. Planet disk interactions and N-body dynamics with other simultaneously growing embryos is included in the framework. We show that the formation of planets can occur in multiple consecutive phases. Earlier generations grow massive by pebble accretion but are subject to fast type I migration and thus accretion to the star. The later generations of embryos that form grow to much smaller masses by planetesimal accretion, as the amount of pebbles in the disk has vanished. The formation history of planetary systems may be far more complex than an initial distribution of embryos could reflect. The dynamic formation of planetary embryos needs to be considered in global models of planet formation to allow for a complete picture of the systems evolution.
description: 12 pages, 9 figures. Accepted for publication in Astronomy & Astrophysics
General synthetic iteration scheme for non-linear gas kinetic simulation of multi-scale rarefied gas flows
Creators: name: Zhu, Lianhua
name: Pi, Xingcai
name: Su, Wei
name: Li, Zhi-Hui
name: Zhang, Yonghao
name: Wu, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76P05

description: The general synthetic iteration scheme (GSIS) is extended to find the steady-state solution of nonlinear gas kinetic equation, removing the long-standing problems of slow convergence and requirement of ultra-fine grids in near-continuum flows. The key ingredients of GSIS are that the gas kinetic equation and macroscopic synthetic equations are tightly coupled, and the constitutive relations in macroscopic synthetic equations explicitly contain Newton's law of shear stress and Fourier's law of heat conduction. The higher-order constitutive relations describing rarefaction effects are calculated from the velocity distribution function, however, their constructions are simpler than our previous work (Su et al. Journal of Computational Physics 407 (2020) 109245) for linearized gas kinetic equations. On the other hand, solutions of macroscopic synthetic equations are used to inform the evolution of gas kinetic equation at the next iteration step. A rigorous linear Fourier stability analysis in periodic system shows that the error decay rate of GSIS can be smaller than 0.5, which means that the deviation to steady-state solution can be reduced by 3 orders of magnitude in 10 iterations. Other important advantages of the GSIS are (i) it does not rely on the specific form of Boltzmann collision operator and (ii) it can be solved by sophisticated techniques in computational fluid dynamics, making it amenable to large scale engineering applications. In this paper, the efficiency and accuracy of GSIS is demonstrated by a number of canonical test cases in rarefied gas dynamics.
description: 25 pages, 17 figures; Version 3, major revision of text and reformed/re-organized equations, added numerical analysis but numerical results are not changed
Lepturges (Lepturges) beaveri Monne 1978
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges beaveri

description: 8. Lepturges (Lepturges) beaveri Monné, 1978
Type locality — Brazil, Mato Grosso: Sinop (12°31’S, 55°37’W). (MNRJ). Distribution — Brazil (Acre, Rondônia, Mato Grosso).
 Lepturges beaveri Monné, 1978a: 6, fig. 4; Julio et al., 2000: 39 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Improving Willingness to Pay Estimates for Quality Improvements Through Joint Estimation with Quality Perceptions
Creators: name: Whitehead, John C.
name: Whitehead, John C.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Demand and Price Analysis
subject: Willingness to pay
subject: quality perceptions
subject: endogeneity

description: Willingness to pay for quality change may depend on heterogeneous perceived quality levels. In these instances, contingent valuation studies should include measures of quality perceptions as covariates in the willingness to pay model in order to avoid omitted variable bias. Variation in quality perceptions across respondents leads to a potential endogeneity of quality perceptions. We address the potential for endogeneity bias using an instrumental variable approach in which a measure of quality perceptions is included as a determinant of willingness to pay and is simultaneously determined by various exogenous factors. The willingness to pay model is estimated jointly with quality perceptions allowing for correlation of the error terms. Using data on willingness to pay for water quality improvements in the Neuse River in North Carolina we reject exogeneity of perceived quality. Correcting for endogeneity improves the measurement of willingness to pay by differentiating willingness to pay among respondents with heterogeneous quality perceptions.
On Projective Umbilics: a Geometric Invariant and an Index
Creators: name: Uribe-Vargas, Ricardo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53A20, 53A55, 53D10, 57R45, 58K05

description: We define a geometric invariant and an index (+1 or -1) for projective umbilics of smooth surfaces. We prove that the sum of the indices of the projective umbilics inside a connected component H of the hyperbolic domain remains constant in any 1-parameter family of surfaces if the topological type of H does not change. We prove the same statement for any connected component E of the elliptic domain. We give formulas for the invariant and for the index which do not depend on any normal form.
description: 13 pages, 7 figures
Benefits and Costs from Sulfur Dioxide Trading: A Distributional Analysis
Creators: name: Shabegian, Ronald J.
name: Gray, Wayne B.
name: Morgan, Cynthia L.
name: Shabegian, Ronald J.
name: Gray, Wayne B.
name: Morgan, Cynthia L.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: air quality
subject: Clean Air Act Amendments
subject: environmental justice
subject: benefits
subject: costs
subject: trading

description: Policy-makers and others interested in environmental justice (EJ) are concerned that poor and minority communities are disproportionately exposed to pollution. Title IV of the 1990 Clean Air Act Amendments required the dirtiest coal-fired utilities to cap their SO2 emissions at 5.8 million tons per year starting in 1995. At the same time, there was a major regulatory regime change with respect to the regulation of coal-fired utilities, shifting from command-and-control emission standards to a system of tradable allowances. In this paper, we examine the distribution of costs and health benefits across different regions and socioeconomic groups associated with the air quality improvements mandated under Title IV. We examine data on the 148 coal-fired utilities which were regulated under Title IV and find as expected that the monetary benefits of reduced SO2 emissions under Title IV greatly outweigh the costs: we estimate benefits of nearly $56 billion and costs of just $558 million. Not unexpectedly the net benefits are positive in every EPA region, but are highly concentrated. We find that nearly 90% of the benefits and costs of the overall reductions under Title IV are concentrated in 4 regions – the northeast, north central, mid-Atlantic, and southeast. Furthermore, when we examine the socio-economic distribution of net benefits, we find that the poor received slightly lower benefits on average from Title IV, which could raise some EJ concerns, if the poor purchase as much electricity as the rich. On the other hand, the African-American and Hispanic communities received a disproportionately larger share of the benefits relative to their costs. Hence our study indicates that there are no significant EJ concerns raised by Title IV.
Glauconyssus tanzaniensis Uchikawa 1991
Creators: name: Hernandes, Fabio A.
name: Huff, Jeremy C.
name: Oconnor, Barry M.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Macronyssidae
Glauconyssus
Glauconyssus tanzaniensis

description: Glauconyssus tanzaniensis Uchikawa, 1991: 446;
ex Glauconycteris poensis (Gray, 1842) (Mammalia, Chiroptera, Vespertilionidae), Mt. Kilimanjaro, Tanzania, 23.II.1968, ♂ holotype, ♀ allotype, 1 ♀ and 1 protonymph paratypes, AM#110.
description: Published as part of Hernandes, Fabio A., Huff, Jeremy C. & Oconnor, Barry M., 2011, Catalog of the Acari types deposited in the American Museum of Natural History, New York (Arthropoda: Arachnida), pp. 1-50 in Zootaxa 2936 (1) on page 5, DOI: 10.11646/zootaxa.2936.1.1, http://zenodo.org/record/5284434
Photometric variability of young brown dwarfs in the sigma Orionis open cluster
Creators: name: Caballero, J. A.
name: Bejar, V. J. S.
name: Rebolo, R.
name: Osorio, M. R. Zapatero
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out multi-epoch, time-series differential I-band photometry of a large sample of objects in the south-east region of the young (~3 Myr), nearby (~350 pc) sigma Orionis open cluster. A field of ~1000 arcmin^2 was monitored during four nights over a period of two years. Using this dataset, we have studied the photometric variability of twenty-eight brown dwarf cluster candidates with masses ranging from the stellar-substellar boundary down to the planetary-mass domain. We have found that about 50% of the sample show photometric variability on timescales from less than one hour to several days and years. The amplitudes of the I-band light curves range from less than 0.01 up to ~0.4 magnitudes. A correlation between the near-infrared excess in the K_s band, strong Halpha emission and large-amplitude photometric variation is observed. We briefly discuss how these results may fit the different scenarios proposed to explain the variability of cool and ultracool dwarfs (i.e. magnetic spots, patchy obscuration by dust clouds, surrounding accretion discs and binarity). Additionally, we have determined tentative rotational periods in the range 3 to 40 h for three objects with masses around 60 M_Jup, and the rotational velocity of 14+/-4 km/s for one of them.
description: Accepted for publication in A&A
Policy Innovation Impacts on Scrubber Electricity Usage
Creators: name: Lange, Ian
name: Bellas, Allen
name: Lange, Ian
name: Bellas, Allen
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Market-based regulation
subject: Electricity deregulation
subject: Scrubbers

description: The introduction of scrubbers as a means of controlling sulfur dioxide pollution from stationary sources coincided with the implementation of the Clean Air Act of 1970. Since that time, there have been many policy changes affecting the electricity generation industry. These changes may be characterized as moving from direct regulation toward market-based incentives, both in deregulation or restructuring of power markets and adoption of market-based environmental regulation. These changes provide natural experiments for investigating whether the form of regulation can alter the rate of technological progress. Previous literature (Popp 2003, Lange and Bellas 2005) is mixed on whether advancements as a result of the switch to market-based environmental incentives have led to lower costs. This paper extends this literature by analyzing changes in scrubbers’ use of electricity (also known as parasitic load) in relation to regulatory policy regimes. Results show that restructured electricity markets have led to a considerable (30-45%) decrease in parasitic load. Conversely, the change to a cap-andtrade system for sulfur dioxide has not led to a decrease.
A Note on Trasande et al., “Public Health and Economic Consequences of Methylmercury Toxicity to the Developing Brain”
Creators: name: Griffiths, Charles
name: McGartland, Al
name: Miller, Maggie
name: Griffiths, Charles
name: McGartland, Al
name: Miller, Maggie
Publisher: name: Unknown
Year: 2006
Subjects: subject: Health Economics and Policy
subject: Mercury
subject: Methylmercury
subject: Dose-Response
subject: IQ
subject: Fish Consumption
subject: CAMR
subject: Benefits

description: In 2005, EPA promulgated the Clean Air Mercury Rule (CAMR) to permanently cap and reduce mercury emissions from coal-fired power plants. During the final stages of promulgating this rule, an article was published by Trasande et al. that raised some issues regarding how to measure benefits from reducing mercury. Using one of the models presented by Trasande, we introduce the assumptions that the EPA used in its CAMR analysis and discuss the implication of introducing these assumptions. The impact of introducing all of the EPA assumptions except for those related to discounting would decrease the estimated monetized impact of anthropogenic emissions in the Trasande model by 81% and would decrease the estimated impact of U.S. sources (including power plants) by almost 97%. Including discounting decreases Trasande’s estimate of global impacts by 88%, and decreases the impact of American and U.S. power plant impacts by 98%.
Measuring the Social Benefits of EPA Land Cleanup and Reuse Programs
Creators: name: Jenkins, Robin
name: Kopits, Elizabeth
name: Simpson, David
name: Jenkins, Robin
name: Kopits, Elizabeth
name: Simpson, David
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: hazardous waste sites
subject: land revitalization
subject: brownfields

description: The EPA has a cornucopia of cleanup and reuse programs ranging from the Superfund Program which addresses sites posing imminent danger and many of the most hazardous sites nationwide, to the Brownfields Program which addresses lower risk sites. These programs provide a common set of primary benefits: reductions in health risks and ecosystem damages, and improvements in amenity values. Indirect benefits include changes in factor, especially land, productivity. A different indirect benefit stems from better information in land markets compared to when land is contaminated, a situation that seems marked by asymmetric information and that might depress the frequency of land transactions. Both indirect benefit categories are a result of the primary benefits and would not be added to them. Cleaning up and reusing urban contaminated sites might generate two additional types of benefits: preservation of green space, and agglomeration benefits. Limited empirical work has addressed each of these benefit categories. Taken as a whole, the literature providing information on the social benefits of cleanup and reuse is spotty and incomplete and perhaps raises more questions than it answers. Would a comprehensive study of the benefits of all cleanup programs, or even of all aspects of one program, do better to focus on primary effects or property value changes? What is the appropriate baseline for hedonic studies? Under what conditions does reusing contaminated land deter greenfield development on the urban periphery?
Electromagnetic energy-momentum and forces in matter
Creators: name: Obukhov, Yuri N.
name: Hehl, Friedrich W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We discuss the electromagnetic energy-momentum distribution and the mechanical forces of the electromagnetic field in material media. There is a long-standing controversy on these notions. The Minkowski and the Abraham energy-momentum tensors are the most well-known ones. We propose a solution of this problem which appears to be natural and self-consistent from both a theoretical and an experimental point of view.
description: Revtex, 17 pages, 1 eps figure
End-to-End Deep Neural Networks and Transfer Learning for Automatic Analysis of Nation-State Malware
Creators: name: Rosenberg, Ishai
name: Sicard, Guillaume
name: David, Eli
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Malware allegedly developed by nation-states, also known as advanced persistent threats (APT), are becoming more common. The task of attributing an APT to a specific nation-state or classifying it to the correct APT family is challenging for several reasons. First, each nation-state has more than a single cyber unit that develops such malware, rendering traditional authorship attribution algorithms useless. Furthermore, the dataset of such available APTs is still extremely small. Finally, those APTs use state-of-the-art evasion techniques, making feature extraction challenging. In this paper, we use a deep neural network (DNN) as a classifier for nation-state APT attribution. We record the dynamic behavior of the APT when run in a sandbox and use it as raw input for the neural network, allowing the DNN to learn high level feature abstractions of the APTs itself. We also use the same raw features for APT family classification. Finally, we use the feature abstractions learned by the APT family classifier to solve the attribution problem. Using a test set of 1000 Chinese and Russian developed APTs, we achieved an accuracy rate of 98.6%.
description: arXiv admin note: substantial text overlap with arXiv:1711.09666
Lepturges (Lepturges) callinus Bates 1885
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges callinus

description: 12. Lepturges (Lepturges) callinus Bates, 1885
Type locality — Guatemala, Quezaltenango: Cerro Zunil. (BMNH). Distribution — Guatemala.
 Lepturges callinus Bates, 1885: 402, pl. 24, fig. 14; Chemsak & Linsley, 1970: 412 (lect.); Chemsak et al., 1992: 141 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Mass loss rate and local thermodynamic state of KELT-9 b thermosphere from the hydrogen Balmer series
Creators: name: Wyttenbach, A.
name: Mollière, P.
name: Ehrenreich, D.
name: Cegla, H. M.
name: Bourrier, V.
name: Lovis, C.
name: Pino, L.
name: Allart, R.
name: Seidel, J. V.
name: Hoeijmakers, H. J.
name: Nielsen, L. D.
name: Lavie, B.
name: Pepe, F.
name: Bonfils, X.
name: Snellen, I. A. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: KELT-9 b, the hottest known exoplanet with $T\sim4400$ K, is the archetype of a new planet class known as ultra-hot Jupiters. These exoplanets are presumed to have an atmosphere dominated by neutral and ionized atomic species. In particular, H$α$ and H$β$ Balmer lines have been detected in the KELT-9 b upper atmosphere, suggesting that hydrogen is filling the planetary Roche lobe and escaping from the planet. In this work, we detected $δ$ Scuti-type stellar pulsation (with a period $P=7.54\pm0.12$ h) and studied the Rossiter-McLaughlin effect (finding a spin-orbit angle $λ=-85.01^°\pm0.23^°$) prior to focussing on the Balmer lines (H$α$ to H$ζ$) in the optical transmission spectrum of KELT-9 b. Our HARPS-N data show significant absorption for H$α$ to H$δ$. The precise line shapes of the H$α$, H$β$, and H$γ$ absorptions allow us to put constraints on the thermospheric temperature. Moreover, the mass loss rate, and the excited hydrogen population of KELT-9 b are also constrained, thanks to a retrieval analysis performed with a new atmospheric model. We retrieved a thermospheric temperature of $T=13200^{+800}_{-720}$ K and a mass loss rate of $\dot{M}=10^{12.8\pm0.3}$ g s$^{-1}$ when the atmosphere was assumed to be in hydrodynamical expansion and in local thermodynamic equilibrium (LTE). Since the thermospheres of hot Jupiters are not expected to be in LTE, we explored atmospheric structures with non-Boltzmann equilibrium for the population of the excited hydrogen. We do not find strong statistical evidence in favor of a departure from LTE. However, our non-LTE scenario suggests that a departure from the Boltzmann equilibrium may not be sufficient to explain the retrieved low number densities of the excited hydrogen. In non-LTE, Saha equilibrium departure via photo-ionization, is also likely to be necessary to explain the data.
description: 20 pages, 25 figures, accepted for publication in A&A (2020-04-25). Minor corrections and language edition (2020-05-06)
BAT AGN Spectroscopic Survey -- XV: The High Frequency Radio Cores of Ultra-hard X-ray Selected AGN
Creators: name: Smith, Krista Lynne
name: Mushotzky, Richard F.
name: Koss, Michael
name: Trakhtenbrot, Benny
name: Ricci, Claudio
name: Wong, O. Ivy
name: Bauer, Franz E.
name: Ricci, Federica
name: Vogel, Stuart
name: Stern, Daniel
name: Powell, Meredith C.
name: Urry, C. Meg
name: Harrison, Fiona
name: Mejia-Restrepo, Julian
name: Oh, Kyuseok
name: Baek, Junhyun
name: Chung, Aeree
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have conducted 22 GHz radio imaging at 1" resolution of 100 low-redshift AGN selected at 14-195 keV by the Swift-BAT. We find a radio core detection fraction of 96%, much higher than lower-frequency radio surveys. Of the 96 radio-detected AGN, 55 have compact morphologies, 30 have morphologies consistent with nuclear star formation, and 11 have sub-kpc to kpc-scale jets. We find that the total radio power does not distinguish between nuclear star formation and jets as the origin of the radio emission. For 87 objects, we use optical spectroscopy to test whether AGN physical parameters are distinct between radio morphological types. We find that X-ray luminosities tend to be higher if the 22 GHz morphology is jet-like, but find no significant difference in other physical parameters. We find that the relationship between the X-ray and core radio luminosities is consistent with the $L_R/L_X \sim 10^{-5}$ of coronally active stars. We further find that the canonical fundamental planes of black hole activity systematically over-predict our radio luminosities, particularly for objects with star formation morphologies.
description: 22 pages, 10 figures, 2 tables. Accepted for publication in MNRAS
Global Climate Control: Is There a Better Strategy Than Reducing Greenhouse Gas Emissions?
Creators: name: Carlin, Alan
name: Carlin, Alan
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: Global warming control
subject: global climate change control
subject: cost-benefit analysis
subject: cost-effectiveness analysis

description: Many environmentalists and some developed nations appear to have concluded that there is one Many environmentalists and some developed nations appear to have concluded that there is one climate change problem, global warming, and that there is only one solution to it, reducing greenhouse gas emissions, usually through the Kyoto Protocol. This paper argues instead that there are actually four major inter-related problems and concludes that several different approaches, including engineered climate selection, would be required to solve all of them. Although some measures can address certain climate change problems, none can address all of them. The paper first reviews the four major climate change problems, analyses whether the most prominent of the greenhouse gas control approaches (the Kyoto Protocol) is likely to be either effective or efficient in solving them, and then analyses both management and technological alternatives to this approach. The paper concludes that the most efficient and effective approach would be to actively pursue both engineered climate selection approaches involving radiative forcing using stratospheric particles optimized for this purpose as well as a new effort to reduce ocean acidification, with immediate priority given to the former in order to solve all the non-ocean acidification problems quickly while the more difficult, much slower, and much more costly effort to reduce ocean acidification is analyzed and carried out. This two-fold approach could be used to rapidly reduce the risks from adverse feedback/tipping point problems from global warming and from global cooling from major volcanic eruptions, and to rapidly stabilize average global temperatures at any desired level. This should also allow a little time for a new effort to better understand ocean acidification and design and carry out a careful program to reduce it directly, or possibly to decrease the carbon dioxide levels themselves to the extent that this is the most effective and lowest cost approach. If the latter, this should result in the lowest possible costs of carbon dioxide control by stretching out the period in which they would be made given the sensitivity of the costs of carbon dioxide emissions reductions to the rapidity with which they occur.