cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rota-Baxter operators and non-skew-symmetric solutions of the classical Yang-Baxter equation on quadratic Lie algebras
Creators: name: Goncharov, Maxim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We study possible connections between Rota-Baxter operators of non-zero weight and non-skew-symmetric solutions of the classical Yang-Baxter equation on finite-dimensional quadratic Lie algebras. The particular attention is made to the case when for a solution $r$ the element $r+τ(r)$ is $L$-invariant.
description: 12 pages
Contigent Valuation with Multiple Bounded Format and Uncertainty Response of a Rural Land Zoning Program in the South of Cordoba Province, Argentina
Creators: name: Cristeche, Estela
name: Tello, Diego
name: De Prada, Jorge
name: Brescia, Victor
name: Cristeche, Estela
name: Tello, Diego
name: De Prada, Jorge
name: Brescia, Victor
Publisher: name: Unknown
Year: 2015
Subjects: subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Contingent Valuation
subject: Multiple Bounded
subject: Uncertainty
subject: Urban Population
subject: Land Zoning
subject: Land Ownership and Tenure
subject: Land Reform
subject: Land Use
subject: Irrigation
subject: Agriculture and Environment

description: This study aims to incorporate urban population perception in the rural land zoning of the South of Córdoba province. Contingent valuation with multiple bounded format taking into account uncertainty was applied to value a land zoning program for controlling soil erosion and deforestation of caldén forest in the South of Córdoba. The data was collected by a face-to-face survey done to 716 heads of household chosen by probability sampling in the cities of Río Cuarto and Villa Huidobro. Willingness to pay (WTP) was estimated following the procedure of Welsh and Poe (1998). The results show the existence of WTP by households. The WTP estimated with four model specifications ranges from $18 to $92 (Argentinean pesos) by household per month. WTP estimation is robust for different model specifications and the signs of estimated parameters are consistent with theory.
Combinatorial Lie bialgebras of curves on surfaces
Creators: name: Chas, Moira
Publisher: name: arXiv
Year: 2001
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M99; 17B62

description: Goldman and Turaev found a Lie bialgebra structure on the vector space generated by non-trivial free homotopy classes of curves on a surface. When the surface has non-empty boundary, this vector space has a basis of cyclic reduced words in the generators of the fundamental group and their inverses. We give a combinatorial algorithm to compute this Lie bialgebra on this vector space of cyclic words. Using this presentation, we prove a generalization of Goldman's result relating the bracket to disjointness of curve representatives when one of the classes is simple. We exhibit some examples we found by programming the algorithm which answer negatively Turaev's question about the characterization of simple curves in terms of the cobracket. Further computations suggest an alternative characterization of simple curves in terms of the bracket of a curve and its inverse. Turaev's question is still open in genus zero.
description: 28 pages, 7 figures
10 Years of EU Membership: The case of the NMS agri-food sector
Creators: name: Csaki, Csaba
name: Jambor, Attila
name: Csaki, Csaba
name: Jambor, Attila
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: 10 years have passed since the 2004 accession round to the European Union. The tenth anniversary provides a good opportunity for stocktaking and assessing the developments of the New Member States in light of the latest data available. The aim of this paper is identify the winners and losers of accession in the agri-food sector of the New Member States by ranking individual country performances. Results suggest Poland
subject: Estonia and Lithuania to be winners of EU accession regarding agricultural
subject: agri-environmental and rural performance
subject: while Slovakia
subject: Latvia and Hungary appear to be the losers in this regard.

description: 10 years have passed since the 2004 accession round to the European Union. The tenth anniversary provides a good opportunity for stocktaking and assessing the developments of the New Member States in light of the latest data available. The aim of this paper is identify the winners and losers of accession in the agri-food sector of the New Member States by ranking individual country performances. Results suggest Poland, Estonia and Lithuania to be winners of EU accession regarding agricultural, agri-environmental and rural performance, while Slovakia, Latvia and Hungary appear to be the losers in this regard.
Food Security and household consumption patterns in Slovakia
Creators: name: Rizoc, Marian
name: Cupak, Andrej
name: Pokrivcak, Jan
name: Rizoc, Marian
name: Cupak, Andrej
name: Pokrivcak, Jan
Publisher: name: Unknown
Year: 2015
Subjects: subject: Food Security and Poverty
subject: International Development
subject: Food security
subject: demand
subject: QUAIDS
subject: elasticity
subject: diet diversity
subject: Slovakia

description: We investigate the food security situation of Slovak households in terms of both access to food and quality of the diet consumed by estimating food demand system and diet diversity demand models using household budget survey data over the period 2004-2010. In most samples demand for meat and fish and fruits and vegetables is expenditure and own-price elastic. On average all five food groups investigated are found to be normal goods. Rural and low-income households appear more expenditure and price sensitive compared to the urban and high-income ones. Results from quantile regressions indicate that income has a positive while uncertainty has a negatively effect on the diversity of the diet as the effects are stronger in more vulnerable, low income and rural consumer subsamples. Overall the food security situation in Slovakia appears to have improved over time, since the country’s EU accession.
An Arrayed Complex Model of Microalgal Growth in a PBR for Solute Production as a Decision Support Tool - open version
Creators: name: Flynn, Kevin J
Publisher: name: Zenodo
Year: 2021
Subjects: Microalgae model Decision Support Tool

description: Powersim Studio 10 model to support Chapter 12 of "Enhancing Microalgal Production - constructing decision support tools using system dynamics modelling" KJ Flynn
description: Requires Powersim Studio 10 to open; https://www.powersim.no/ Funded by the European Regional Development Fund (ERDF) Interreg Atlantic Area programme, EnhanceMicroAlgae (EAPA_338/2016; "High added-value industrial opportunities for microalgae in the Atlantic Area").
Balancing Gaussian vectors in high dimension
Creators: name: Turner, Paxton
name: Meka, Raghu
name: Rigollet, Philippe
Publisher: name: arXiv
Year: 2019
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68R01, 62F12

description: Motivated by problems in controlled experiments, we study the discrepancy of random matrices with continuous entries where the number of columns $n$ is much larger than the number of rows $m$. Our first result shows that if $ω(1) = m = o(n)$, a matrix with i.i.d. standard Gaussian entries has discrepancy $Θ(\sqrt{n} \, 2^{-n/m})$ with high probability. This provides sharp guarantees for Gaussian discrepancy in a regime that had not been considered before in the existing literature. Our results also apply to a more general family of random matrices with continuous i.i.d entries, assuming that $m = O(n/\log{n})$. The proof is non-constructive and is an application of the second moment method. Our second result is algorithmic and applies to random matrices whose entries are i.i.d. and have a Lipschitz density. We present a randomized polynomial-time algorithm that achieves discrepancy $e^{-Ω(\log^2(n)/m)}$ with high probability, provided that $m = O(\sqrt{\log{n}})$. In the one-dimensional case, this matches the best known algorithmic guarantees due to Karmarkar--Karp. For higher dimensions $2 \leq m = O(\sqrt{\log{n}})$, this establishes the first efficient algorithm achieving discrepancy smaller than $O( \sqrt{m} )$.
Lehramtsausbildung in der digitalen Welt : Eine empirische Untersuchung zu den Überzeugungen von Lehramtsstudierenden der Martin-Luther-Universität Halle-Wittenberg zum Einsatz digitaler Medien im Unterricht
Creators: name: Miller, Sophie
Publisher: name: Hochschulbibliothek, Hochschule Merseburg
Year: 2023
Subjects: subject: Einsatz digitaler Medien im Unterricht
subject: Lehramtsausbildung
subject: 370

description: Ziel dieser Arbeit ist es daher, die Überzeugungen von Lehramtsstudierenden der Martin-Luther-Universität Halle-Wittenberg hinsichtlich des Einsatzes digitaler Medien im Unterricht mittels einer quantitativen Befragung zu erfassen, um hieraus zentrale Stellschrauben der inhaltlichen und strukturellen Gestaltung medienpädagogischer Ausbildungsinhalte an der Universität abzuleiten. Zu diesem Zweck sollen zunächst die wichtigsten Arten medienbezogener Überzeugungen identifiziert werden, um einen Eindruck vom Stimmungsbild unter der Studierendenschaft zu erhalten. Von Interesse ist etwa, inwieweit die Verwendung digitaler Unterrichtsmittel gutgeheißen wird; ob digitale Medien grundsätzlich für geeignete Unterrichtsmittel gehalten werden oder wie die Studierenden mögliche Potentiale, Gefahren und Hindernisse einschätzen. Dabei soll der praxisbezogene Gesamtzusammenhang nicht aus dem Blick geraten, weshalb diese Überzeugungen im Kontext ihres Einflusses auf zukünftiges Unterrichtshandeln betrachtet werden.
Price, Quality and Trade Costs in the Food Sector
Creators: name: Curzi, Daniele
name: Pacca, Lucia
name: Curzi, Daniele
name: Pacca, Lucia
Publisher: name: Unknown
Year: 2015
Subjects: Food Consumption/Nutrition/Food Safety
International Relations/Trade

description: Recent developments in international trade theory have placed growing emphasis on the quality of products, showing that it affects countries’ export performances. However, as quality is unobservable, a measurement problem emerges. In this paper we apply some of the most recent methods to estimate quality of traded products. We focus on the food sector, where the growing attention on quality and safety issues is leading to an increase in the demand for high quality products. In the first part of our empirical analysis, we investigate the properties of the estimated qualities. We find that, in contrast with what often is assumed in the literature, quality and prices are imperfectly correlated. The second empirical section is dedicated to the study of the relationship between price vs. quality and trade costs. It emerges that the price and the quality of food exports are influenced differently by ad valorem and specific trade costs.
Measuring the Technical Efficiency of Farms Producing Environmental Output: Semiparametric Estimation of Multi-output Stochastic Ray Production Frontiers
Creators: name: Czekaj, Tomasz G.
name: Czekaj, Tomasz G.
Publisher: name: Unknown
Year: 2015
Subjects: Environmental Economics and Policy
Farm Management

description: This paper investigates the technical efficiency of Polish dairy farms producing environmental output using the stochastic ray function to model multi-output – multi-input technology. Two general models are considered. One which neglects the provision of environmental output and one which accounts for such output. The main focus is on the estimation of technical efficiency of farms producing the environmental output. Since some farms do not provide such output at all, the stochastic ray frontier functions are estimated to overcome the problem of the zero valued dependent variables which often occur when the Translog output distance function is used. The detailed results of the technical efficiency analysis show that, although the estimated efficiencies from the models which neglect the environmental output and those which account for the output are rather similar on average, the rankings based on these efficiencies differ.
Turbulent kinetic energy in 2D isothermal interchange-dominated scrape-off layer ExB drift turbulence: Governing equation and relation to particle transport
Creators: name: Coosemans, Reinart
name: Dekeyser, Wouter
name: Baelmans, Martine
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper studies the turbulent kinetic energy ($k_\perp$) in 2D isothermal electrostatic interchange-dominated ExB drift turbulence in the scrape-off layer and its relation to particle transport. An evolution equation for the former is analytically derived from the underlying turbulence equations. Evaluating this equation shows that the dominant source for the turbulent kinetic energy is due to interchange drive, while the parallel current loss to the sheath constitutes the main sink. Perpendicular transport of the turbulent kinetic energy seems to play a minor role in the balance equation. Reynolds stress energy transfer also seems to be negligible, presumably because no significant shear flow develops under the given assumptions of isothermal sheath-limited conditions in the open field line region. The interchange source of the turbulence is analytically related to the average turbulent ExB energy flux, while a regression analysis of TOKAM2D data suggests a model that is linear in the turbulent kinetic energy for the sheath loss. A similar regression analysis yields a diffusive model for the average radial particle flux, in which the anomalous diffusion coefficient scales with the square root of the turbulent kinetic energy. Combining these three components, a closed set of equations for the mean-field particle transport is obtained, in which the source of the turbulence depends on mean flow gradients and $k_\perp$ through the particle flux, while the turbulence is saturated by parallel losses to the sheath. Implementation of this new model in a 1D mean-field code shows good agreement with the original TOKAM2D data over a range of model parameters.
description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 28, 012302 (2021) and may be found at https://doi.org/10.1063/5.0024479
Interaction corrections at intermediate temperatures: dephasing time
Creators: name: Narozhny, B. N.
name: Zala, Gábor
name: Aleiner, I. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the temperature dependence of the weak localization correction in a two dimensional system at arbitrary relation between temperature, $T$ and the elastic mean free time. We describe the crossover in the dephasing time ${τ_ϕ(T)}$ between the high temperature, $1/τ_ϕ\simeq T^2 \ln T$, and the low temperature $1/τ_ϕ\simeq T$ behaviors. The prefactors in these dependences are not universal, but are determined by the Fermi liquid constant characterising the spin exchange interaction.
description: 4 pages, to appear in PRB, minor errors corrected, added references
Conspica inconspicua Fibiger 2010, new species
Creators: name: FIBIGER, MICHAEL
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Conspica
Conspica inconspicua

description: Conspica inconspicua Fibiger, new species
(Plate 4, figure 7; male genit. plate 14, figure 5; female genit. plate 23, figure 3)
 Material examined. Holotype: male, Thailand N, ca. 5 km NE intersection rds 1081 and 1307 towards Ban Nam Lee Pattana, 28.xi.2003, leg. L. Peregovits et al., coll. HNHM.
 Paratypes: 1 male, 3 females. 1 male, 2 females with same data as holotype, male with genit. prep. 6066 M. Fibiger and 1 female with genit. prep. 6065 M. Fibiger; 1 female Thailand, Chiang Mai, Doi Chiang Dao WS, h’way 1322 to Wiang Haeng, 3 km from Khun Mae Ngaay c’point, 900 m, 15–16.iv.1994, leg. I.J. Kitching et al., genit. prep. 3281 M. Fibiger, BMNH (E) 1994-97. Colls HNHM, BMNH, and MF.
 Diagnosis. Imago (external). Wingspan: 9 mm.
Head, patagia, tegulae, thorax, and all areas of forewing, including fringes: grey suffused with brown dots.
Abdomen: light grey, with dorsal tufts on two basal segments.
Medial area of forewing: costal part considerably darker brownish grey than rest of wing.
Antemedial and postmedial lines: brown, broad.
Terminal line: marked by black interneural dots.
Hindwing: light grey, darker towards termen, terminal line brown, and indistinct discal spot; fringes whitish.
Underside: forewing light grey; hindwing whitish; discal spot of hindwing present.
 Male genitalia. Tegumen and vinculum: relatively weakly built.
Saccus: short; broadly U shaped.
Fultura superior: membranous.
Ampulla: asymmetrical, long; forming a cross with axis of valva; apically rounded; laterally long, ventrally long and pointed; left ventral side much longer (apo.).
Digitus: absent.
 Phallus: coecum extremely narrow; phallus otherwise broad, tapered towards tip; curved 90 o upwards (apo.).
Vesica: unarmed.
 Female genitalia. Ovipositor: quadrangular, with rounded corners.
Posterior apophyses: 1.5 times as long as ovipositor.
Anterior apophyses: untraceable.
 7 th and 8 th abdominal segment: slightly longer than broad; totally fused (apo.).
 Ostium: displaced slightly to left, very small, located half way up 8 th segment.
Antrum: narrow, very short, less than twice as long as wide, cylindrical and sclerotised.
Ductus bursae: 1.5 times longer than corpus bursae; membranous; narrow, threadlike, slightly curved (apo.).
Appendix bursae: arising posteriorly from ductus bursae.
Corpus bursae: narrow, ovoid.
Signum: cross shaped; longitudinal bar weaker.
 Differential diagnosis. C. inconspicua differs from C. parainconspicua in female genitalia, in longer posterior apophyses, shorter 7 th –8 th segment and shorter ductus bursae.
 Distribution. C. inconspicua known only from Thailand.
description: Published as part of FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, pp. 1-119 in Zootaxa 2583 (1) on pages 36-37, DOI: 10.11646/zootaxa.2583.1.1, http://zenodo.org/record/10094382
Asymmetric Volatility Modeling of Spot Prices of Arabic Coffee in Brazil
Creators: name: Da Silva, Carlos Alberto
name: Ferreira, Leo Da
name: Da Silva, Carlos Alberto
name: Ferreira, Leo Da
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural Finance
subject: Food Security and Poverty
subject: coffee
subject: price volatility
subject: heteroskedasticity models.

description: This paper examines the volatility of daily returns of spot prices of Arabica Coffee through conditional variance models, also called heteroskedasticity models. The data used in the analysis refers to the January 3, 2000 to June 15, 2012 period. The empirical results show reactions of persistency and asymmetry in the variance of their returns, in other words, both good and bad news differently impacts on the volatility of returns according to the EGARCH (1.1) and TARCH (1.1) models. However, from the standpoint of performing predictions, the model that best adapted heteroskedasticity data was EGARCH (1.1) with t - Student's distribution. The coffee market presents strong evidence of such result, since the supply shock yields increases in price levels of the commodity. The empirical results suggest the need of proper strategic instruments of hedging in view of the accentuated shock persistency in Arabic Coffee price volatility returns.
Additional file 1: of The interrelationship between concepts about agency and studentsâ use of teachable-agent learning technology
Creators: name: Jaeger, Christopher
name: Hymel, Alicia
name: Levin, Daniel
name: Biswas, Gautam
name: Paul, Natalie
name: Kinnebrew, John
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Sample behavioral prediction scenarios and sampleÂ content questions. (DOCX 4003 kb)
Empirical comparison of pollution generating technologies in nonparametric modelling: The case of greenhouse gas emissions in French sheep meat farming
Creators: name: Dakpo, K
name: Jeanneaux, Philippe
name: Latruffee, Laure
name: Dakpo, K
name: Jeanneaux, Philippe
name: Latruffee, Laure
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: eco-efficiency
subject: undesirable output
subject: multiple frontier technology
subject: GHG emissions
subject: sheep meat farming
subject: France

description: In this paper we consider different models that assess eco-efficiency with production frontier estimation when both desirable outputs and undesirable outputs (or residuals) are considered. These models are confronted to livestock farm data (sheep meat farms) and greenhouse gas (GHG) emissions, to discuss their suitability in eco-efficiency measurement. The application is to French sheep meat farms. Our results show that under certain conditions the existing models, except for the by-production, yield the same results as when residuals are treated as inputs. The results also reveal that the by-production model augmented with dependence constraints offer some promising opportunities. Besides, environmental inefficiency appears to be the main contributor of eco-inefficiency in the sheep meat production.
Fractal squares with finitely many connected components
Creators: name: Xiao, Jian-Ci
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Topology (math.GN)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28A80

description: In this paper, we present an effective method to characterize completely when a disconnected fractal square has only finitely many connected components. Our method is to establish some graph structures on fractal squares to reveal the evolution of the connectedness during their geometric iterated construction. We also prove that every fractal square contains either finitely or uncountably many connected components. A few examples, including the construction of fractal squares with exactly $m\geqslant 2$ connected components, are added in addition.
description: 19 pages, 8 figures
Probing the Physics of AGN: A Summary
Creators: name: Blandford, R. D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A summary critique is presented of the topics discussed at a workshop entitled ``Probing the Physics of Active Galactic Nuclei by Multi-wavelength Monitoring'' held at Goddard Space Flight Center 21-23 June 2000. Particular emphasis is placed on the larger astronomical context of research on active galactic nuclei. An important goal is to use multi-wavelength monitoring to produce ``engineering drawings'' of how gas flows in the vicinity of a black hole, as well is in the associated accretion disk inflows and jet outflows. Some of the clear choices that have to be made before formulating a model of a particular class of source are outlined. Future observational possibilities are briefly summarized.
description: 20 pages
Conspica parainconspicua Fibiger 2010, new species
Creators: name: FIBIGER, MICHAEL
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Conspica
Conspica parainconspicua

description: Conspica parainconspicua Fibiger, new species
(Plate 4, figure 8; female genit. plate 23, figure 4)
 Material examined. Holotype: female Thailand, Chiang Mai, Doi Chiang Dao WS, h’way 1322 to Wiang Haeng, 3 km from Khun Mae Ngaay c’point, 900 m, 15–16.iv.1994, leg. I.J. Kitching et al., genit. prep. 3518 M. Fibiger, BMNH (E) 1994-97. Coll BMNH.
 Diagnosis. Imago (external). Wingspan: 9 mm.
Head, patagia, tegulae, thorax, and all areas of forewing, including fringes: grey suffused with brown dots.
Abdomen: light grey, with dorsal tufts on two basal segments.
Medial area: costal part considerably darker brownish grey than rest of wing.
Antemedial and postmedial lines: brown, broad.
Terminal line: marked by black interneural dots.
Hindwing: light grey, darker towards termen, terminal line brown; with indistinct discal spot; fringes whitish.
Underside: forewing light grey, hindwing whitish, hindwing with discal spot.
 Female genitalia. Ovipositor: quadrangular, with rounded corners.
Posterior apophyses: 1.25 times longer than ovipositor (apo.).
Anterior apophyses: untraceable.
 7 th and 8 th abdominal segment: longer than broad; totally fused (apo.).
 Ostium: displaced slightly to left, very small, located half way up 8 th segment.
Antrum: narrow; very short, less than twice as long as wide, cylindrical, sclerotised.
Ductus bursae: twice as long as corpus bursae, membranous, narrow and threadlike, slightly curved (apo.).
Appendix bursae: arising posteriorly from ductus bursae.
 Differential diagnosis. Differences from C. inconspicua are given under that species.
 Distribution. C. parainconspicua known only from N Thailand, where it occurs sympatrically with previous species.
description: Published as part of FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, pp. 1-119 in Zootaxa 2583 (1) on pages 37-38, DOI: 10.11646/zootaxa.2583.1.1, http://zenodo.org/record/10094382
Taicolopodacus primus Huang & Wang, 2009, sp. nov.
Creators: name: Huang, Kun-Wei
name: Wang, Chin-Fah
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Taicolopodacus
Taicolopodacus primus

description: Taicolopodacus primus sp. nov. (Fig. 1; Pl. 1 A, B)
Female: Body fusiform, 165 long, shield 52 long, 63 wide, shield lobe present; shield design with many longitudinal lines at lateral sides, median line from base to basal 1/3, admedian lines complete, with transverse line at basal 1/3, form rhomb-like at apex, with extending lines toward lateral, submedian line absent; scapular tubercles set ahead of rear shield margin, scapular seta (sc) 8 long, directed upwards, Dt-Dt 17 apart. Legs: tibiae fused with tarsi; coxal area smooth; 1st coxal seta (1b) 5 long, Ct1-Ct1 10 apart, 2nd coxal seta (1a) 6 long, Ct2-Ct2 9 apart, 3rd coxal seta (2a) 14 long, Ct3-Ct3 22 apart, Ct1\Ct2 12, Ct1-Ct2 8, Ct2\Ct3 16, Ct2- Ct3 8; solenidion ending as knob; empodium simple, 6 rayed.
Opisthosoma: dorsum with median and subdorsal ridges, ridges with spine-like microtubercles, dorsal annuli with 24 rings, first dorsal opisthosomal annul broad, 1st 3 dorsal annuli 17 long; ventral annuli with 50 microtuberculate rings; lateral seta (c2) 13 long, Lt-Lt 42 apart, Lt\Vt1 39, Lt-Vt1 28; 1st ventral seta (d) 16 long, Vt1-Vt1 19 apart, 2nd ventral seta (e) and tubercles absent; 3rd ventral seta (f) 19 long, Vt3-Vt3 15 apart; accessory seta (h1) absent.
Epigynium: 20 wide, 13 long, with about 21 longitudinal ridges, genital seta (3a) 7 long, Gt-Gt 14 apart.
Male: body 121 long, shield 45 long, 48 wide, scapular seta (sc) 4 long; genital 13 wide, 8 long, genital seta (3a) 6 long, Gt-Gt 11 apart.
Type data: Holotype Ψ, Taipei: Yangmingshan (675m; N25°10´E121°10´), 18-Aug.-1999, Huang & Wang; ex Helicia formosana Hemsl. (Proteaceae). (deposited at NMNS). Paratypes, 12Ψ, 4ɗ data same as for holotype.
Relation to host: A vagrant on the lower leaf surface. No apparent damage was observed.
Remarks: From the outline view, this new species looks similar to Caleiptrimerus heliciopsus Chandrapatya et Boczek, 2000 by the broad first dorsal annuli, prodorsal shield with many dashed lines and the dorsal annuli forming central sharp ridges.
Etymology: This new name means “first” in reference to the first record in Taiwan.
description: Published as part of Huang, Kun-Wei & Wang, Chin-Fah, 2009, Eriophyoid mites (Acari: Eriophyoidea) of Taiwan: thirty-seven species from Yangmingshan, including one new genus and twenty-two new species, pp. 1-50 in Zootaxa 1986 on page 5, DOI: 10.5281/zenodo.185424
New Vistas in Braneworld Cosmology
Creators: name: Sahni, Varun
name: Shtanov, Yuri
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Traditionally, higher-dimensional cosmological models have sought to provide a description of the fundamental forces in terms of a unifying geometrical construction. In this essay we discuss how, in their present incarnation, higher-dimensional `braneworld' models might provide answers to a number of cosmological puzzles including the issue of dark energy and the nature of the big-bang singularity.
description: Honorable mention in the 2002 Essay Competition of the Gravity Research Foundation. 10 pages, 2 figures
A greedy algorithm for computing eigenvalues of a symmetric matrix
Creators: name: Hernandez, Taylor M.
name: Van Beeumen, Roel
name: Caprio, Mark A.
name: Yang, Chao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a greedy algorithm for computing selected eigenpairs of a large sparse matrix $H$ that can exploit localization features of the eigenvector. When the eigenvector to be computed is localized, meaning only a small number of its components have large magnitudes, the proposed algorithm identifies the location of these components in a greedy manner, and obtains approximations to the desired eigenpairs of $H$ by computing eigenpairs of a submatrix extracted from the corresponding rows and columns of $H$. Even when the eigenvector is not completely localized, the approximate eigenvectors obtained by the greedy algorithm can be used as good starting guesses to accelerate the convergence of an iterative eigensolver applied to $H$. We discuss a few possibilities for selecting important rows and columns of $H$ and techniques for constructing good initial guesses for an iterative eigensolver using the approximate eigenvectors returned from the greedy algorithm. We demonstrate the effectiveness of this approach with examples from nuclear quantum many-body calculations, many-body localization studies of quantum spin chains and road network analysis.
description: 19 pages, 9 figures, 1 table
Fossil Fuel Extraction and Climate Policy: A Review of the Green Paradox with Endogenous Resource Exploration
Creators: name: Osterle, Ines
name: Osterle, Ines
Publisher: name: Unknown
Year: 2012
Subjects: subject: Environmental Economics and Policy
subject: Green Paradox
subject: Supply-side dynamics
subject: Climate Policy
subject: Exhaustible Resources
subject: Fossil Fuels
subject: Exploration

description: Policies aimed at reducing emissions from fossil fuels may increase climate damages. This “Green Paradox” emerges if resource owners increase near-term extraction in fear of stricter future policy measures. Hans-Werner Sinn (2008) showed that the paradox occurs when increasing resource taxes are applied within a basic exhaustible resource model. This article highlights that the emergence of the Green Paradox within this framework relies on the non-existence of a backstop technology and fixed fossil fuel resources. In doing this, it initially presents a basic exhaustible resource model which includes a backstop technology and shows that the implementation of a specific sales tax path is effective in mitigating global warming. Secondly, it considers the case of costly exploration activities being introduced within the basic model and accounts for the real world condition that the location of fossil fuels is unknown. Under this condition, an increasing cash flow tax is effective in dealing with climate change if policy makers commit to a high initial tax level and to a specific range of growth rates.
Yangian Bootstrap for Conformal Feynman Integrals
Creators: name: Loebbert, Florian
name: Müller, Dennis
name: Münkler, Hagen
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We explore the idea to bootstrap Feynman integrals using integrability. In particular, we put the recently discovered Yangian symmetry of conformal Feynman integrals to work. As a prototypical example we demonstrate that the D-dimensional box integral with generic propagator powers is completely fixed by its symmetries to be a particular linear combination of Appell hypergeometric functions. In this context the Bloch-Wigner function arises as a special Yangian invariant in 4D. The bootstrap procedure for the box integral is naturally structured in algorithmic form. We then discuss the Yangian constraints for the six-point double box integral as well as for the related hexagon. For the latter we argue that the constraints are solved by a set of generalized Lauricella functions and we comment on complications in identifying the integral as a certain linear combination of these. Finally, we elaborate on the close relation to the Mellin-Barnes technique and argue that it generates Yangian invariants as sums of residues.
description: 20 pages, v2: minor improvements
Dignus buchsbaumi Fibiger, new species
Creators: name: FIBIGER, MICHAEL
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Dignus
Dignus buchsbaumi

description: Dignus buchsbaumi Fibiger, new species
(Plate 5, figure 2; female genit. plate 23, figure 6)
 Material examined. Holotype: female, Indonesia, Lombok centr., Senaru, Gg. Rinjani, 8’18’02 S, 16’24’31 E, 515 m, 28.vii.2003, leg. Ulf Buchsbaum, genit. prep. 4646 M. Fibiger, coll. MF, to be deposited in ZSM.
 Diagnosis. Imago (external). Wingspan: 12 mm.
Labial palps: porrect; second segment brown outside, beige inside, roughly scaled vertically; third segment 1/4 of second, narrow, brown.
Head, patagia, tegulae, thorax, and ground colour of forewing: dark greyish brown.
Crosslines: antemedial and subterminal lines well marked, black, almost straight; other lines weakly marked, except narrow terminal line (apo.).
Abdomen: dark grey, with dorsal tuft on basal segment.
Reniform stigma: whitish yellow; black outlined.
Hindwing: grey, discal spot absent.
Underside: grey, costal area of both wings suffused with black scales, discal spot absent.
 Female genitalia. Ovipositor: quadrangular, with rounded corners.
Posterior apophyses: 2.5 times longer than ovipositor (apo.).
Anterior apophyses: as long as ovipositor (apo.).
 7 th abdominal segment: as long as broadest width; anteriorly heavily sclerotised, with long, lateral pockets (apo.).
 7 th and 8 th abdominal segment: fused; slightly longer than broad.
 8 th abdominal segment: half as long as wide (apo.).
 Ostium: displaced slightly to left; positioned anteriorly at 7 th segment, at end of cylindrical postvaginal channel (apo.).
Antrum: narrow, short, ringlike (apo.).
Ductus bursae: membranous, very long and narrow; 3 times as long as corpus bursae.
Appendix bursae: arising posteriorly from ductus bursae.
Signum: cross shaped; longitudinal bar weaker and broader, platelike.
 Distribution. D. buchsbaumi known only from type-locality, Indonesia, Bali.
description: Published as part of FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, pp. 1-119 in Zootaxa 2583 (1) on pages 39-40, DOI: 10.11646/zootaxa.2583.1.1, http://zenodo.org/record/10094382
A System Approach on Organizational Innovations in the Agro-Food Sector: The Case of AFSCs in Flanders
Creators: name: Vandermeulen, Valerie
name: Vuylsteke, Anne
name: Van Huylenbroeck, Guido
name: Vandermeulen, Valerie
name: Vuylsteke, Anne
name: Van Huylenbroeck, Guido
Publisher: name: Unknown
Year: 2011
Subjects: Agribusiness
Agricultural and Food Policy
Farm Management
Food Consumption/Nutrition/Food Safety
Production Economics

description: Together with the evolution from the agro-industrial model to the sustainable rural development model (Roep and Wiskerke 2004), a part of the agro-food market has evolved from an anonymous, mass food market to a quality-food market. This shift is driven by factors, such as the changing relations between supply chain actors due to concentration in retail and processing, the growing importance of quality standards, considerable changes in consumer habits and preferences, the increasing attention for the multifunctional dimensions of agriculture and the establishment of new markets for public goods and services (Kirwan, Slee et al. 2003; Jahn, Zerger et al. 2007). As a consequence, the contemporary agro-food markets are more and more characterised by coordination between the actors in food supply chains. Collective action is not only adopted to improve supply chain logistics, but can also be used as a strategic instrument to realise market differentiation, to increase market share, or to obtain niche protection (Hobbs, Fearne et al. 2002; Vuylsteke, Collet et al. 2003; Ménard and Klein 2004). Moreover, new forms of dynamism and innovative forms of cooperation, such as alternative food supply chains, are emerging (Marsden, Banks et al. 2000).
Additional file 2: of Accounting for single center effects in systematic reviews cannot be overlooked
Creators: name: Besen, Bruno
name: Park, Marcelo
name: Nassar, Antonio
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: The subgroup analysis showed early RRT initiation within 24 hours was associated with low mortality in patients with AKI after cardiac surgery. (PDF 45Â kb)
Modelling Fresh Strawberry Supply “From-Farm-to-Fork” as a Complex Adaptive Network
Creators: name: Engelseth, Per
name: Karlsen, Anniken
name: Verwaart, Tim
name: Engelseth, Per
name: Karlsen, Anniken
name: Verwaart, Tim
Publisher: name: Unknown
Year: 2011
Subjects: Agribusiness
Agricultural and Food Policy
Farm Management
Production Economics
Research Methods/ Statistical Methods

description: The purpose of this study is to model and thereby enable simulation of the complete business entity of fresh food supply. A case narrative of fresh strawberry supply provides basis for this modelling. Lamming et al. (2000) point to the importance of discerning industry-specific product features (or particularities) regarding managing supply networks when discussing elements in “an initial classification of a supply network” while Fisher (1997) and Christopher et al. (2006, 2009) point to the lack of adopting SCM models to variations in products and market types as an important source of SCM failure. In this study we have chosen to move along a research path towards developing an adapted approach to model end-to-end fresh food supply influenced by a combination of SCM, system dynamics and complex adaptive network thinking.
Resource Estimation for Quantum Variational Simulations of the Hubbard Model
Creators: name: Cai, Zhenyu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As the advances in quantum hardware bring us into the noisy intermediate-scale quantum (NISQ) era, one possible task we can perform without quantum error correction using NISQ machines is the variational quantum eigensolver (VQE) due to its shallow depth. A specific problem that we can tackle is the strongly interacting Fermi-Hubbard model, which is classically intractable and has practical implications in areas like superconductivity. In this Article, we outline the details about the gate sequence, the measurement scheme and the relevant error mitigation techniques for the implementation of the Hubbard VQE on a NISQ platform. We perform resource estimation for both silicon spin qubits and superconducting qubits for a 50-qubit simulation, which cannot be solved exactly via classical means, and find similar results. The number of two-qubit gates required is on the order of 20000. Hence, to suppress the mean circuit error count to a level such that we can obtain meaningful results with the aid of error mitigation, we need to achieve a two-qubit gate error rate of $\sim 10^{-4}$. When searching for the ground state, we need a few days for one gradient-descent iteration, which is impractical. This can be reduced to around $10$ minutes if we distribute our task among hundreds of quantum processing units. Hence, implementing a 50-qubit Hubbard model VQE on a NISQ machine can be on the brink of being feasible in near term, but further optimisation of our simulation scheme, improvements in the gate fidelity, improvements in the optimisation scheme and advances in the error mitigation techniques are needed to overcome the remaining obstacles. The scalability of the hardware platform is also essential to overcome the runtime issue via parallelisation, which can be done on one single silicon multi-core processor or across multiple superconducting processors.
Toric Duality, Seiberg Duality and Picard-Lefschetz Transformations
Creators: name: Franco, Sebastian
name: Hanany, Amihay
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Toric Duality arises as an ambiguity in computing the quiver gauge theory living on a D3-brane which probes a toric singularity. It is reviewed how, in simple cases Toric Duality is Seiberg Duality. The set of all Seiberg Dualities on a single node in the quiver forms a group which is contained in a larger group given by a set of Picard-Lefschetz transformations. This leads to elements in the group (sometimes called fractional Seiberg Duals) which are not Seiberg Duality on a single node, thus providing a new set of gauge theories which flow to the same universality class in the Infra Red.
description: 7 pages, 5 figures. Based on the talk presented by A.H. at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles. v2: two references added
Die sanfte thermische Hodenerwärmung alsVerhütungsmethode für Männer* - eine qualitative Untersuchung zu Erfahrung und Einstellung Praktizierender
Creators: name: Marquart, Felix
Publisher: name: Hochschulbibliothek, Hochschule Merseburg
Year: 2021
Subjects: subject: Verhütungsmethode
subject: thermische Hodenerwärmung
subject: Verhütungsverantwortung durch Männer
subject: DDC::6** Technik, Medizin, angewandte Wissenschaften::61* Medizin und Gesundheit
subject: DDC::3** Sozialwissenschaften::30* Sozialwissenschaften, Soziologie

description: Für die vorliegende Arbeit wurden Anwendende der weitestgehend unbekannten Verhütungsmethode der sanften thermischen Hodenerwärmung, die eine männliche* Verantwortungsübernahme erfordert, befragt. Mittels dreier qualitativer Interviews wurden Einstellungen der Praktizierenden sowie Erfahrungen und Beweggründe für die Wahl der Methode ergründet. Als Ergebnis sind die einfache Anwendbarkeit bei kleinsten Nebenwirkungen, die Kostengünstigkeit und der hohe Verhütungsfaktor der Methode hervor zu heben. Die geringe Erforschung der Methode trägt zu einer Unsicherheit der Praktizierenden hinsichtlich möglicher Nebenwirkungen und Langzeitfolgen bei. Ebenfalls hinderlich ist die geringe Bekanntheit um die Methode und gesellschaftliche Verhältnisse, innerhalb derer keine starke Verhütungsverantwortung durch Männer* eingefordert wird. Die Anwendenden hatten zuvor bereits aktiv Verantwortung übernommen gehabt, wollten diese jedoch steigern, was sich auch aus ihrer politischen Überzeugung ableitet.
Lines Tangent to 2n-2 spheres in R^n
Creators: name: Sottile, Frank
name: Theobald, Thorsten
Publisher: name: arXiv
Year: 2001
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N10, 14P99, 51N20, 52A15, 68U05

description: We show that there are 3 \cdot 2^(n-1) complex common tangent lines to 2n-2 general spheres in R^n and that there is a choice of spheres with all common tangents real.
description: Minor revisions. Trans. AMer. Math. Soc., to appear. 15 pages, 3 .eps figures; also a web page with computer code verifying the computations in the paper and with additional pictures
Vas owadai Fibiger 2010, new species
Creators: name: FIBIGER, MICHAEL
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Vas
Vas owadai

description: Vas owadai Fibiger, new species
(Plate 5, figure 3; female genit. plate 23, figure 7)
 Material examined. Holotype: female, Thailand N, Chiang Mai Prov., Doi Inthanon, South Ridge, 1650 m, 18–21.x.1983, leg. M. Owada, genit. prep. 3282 M. Fibiger, coll. NSMT.
 Diagnosis. Imago (external). Wingspan: 11 mm.
Head, patagia, tegulae, thorax, and ground colour of forewing: brown; costal quadrangular patch of medial area and terminal area dark brown (apo.).
Forewing: long and narrow, with pointed apex.
Abdomen: grey; with dorsal tuft on basal segment.
Crosslines: all present, though indistinctly marked; terminal line marked by black interneural dots.
Reniform stigma: small, whitish, outlined by dark brown.
Hindwing: light grey, with indistinct discal spot.
Underside: forewing brown grey, hindwing light grey, discal spot of hindwing present.
 Female genitalia. Ovipositor: quadrangular, with rounded corners.
Posterior apophyses: slightly longer than ovipositor.
Anterior apophyses: 1/5 length of posterior apophyses.
 7 th abdominal segment: half as long as wide; shortest ventrally.
 8 th abdominal segment: ventrally free, with postvaginal, conelike plate.
Ostium: displaced slightly to left, large.
Antrum: broadly vaselike, 1.5 times longer than wide; ventrally shorter (apo.).
Ductus bursae: membranous, very long and narrow; 3 times as long as corpus bursae (apo.).
Corpus bursae: globular.
Appendix bursae: arising posteriorly from ductus bursae.
Signum: cross-shaped, longitudinal bar shorter.
 Differential diagnosis. V. owadai differs from V. proceus in smaller size, in male genitalia, in larger patch in costa-medial area, and in female genitalia in longer antrum and longer ductus bursae.
 Distribution. V. owadai known only from type-locality in North Thailand.
description: Published as part of FIBIGER, MICHAEL, 2010, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea) Part 3, Taxonomy of the Tactusinae, pp. 1-119 in Zootaxa 2583 (1) on pages 40-41, DOI: 10.11646/zootaxa.2583.1.1, http://zenodo.org/record/10094382
Perfect 2-colorings of Hamming graphs
Creators: name: Bespalov, Evgeny A.
name: Krotov, Denis S.
name: Matiushev, Aleksandr A.
name: Taranenko, Anna A.
name: Vorob'ev, Konstantin V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We consider the problem of existence of perfect $2$-colorings (equitable $2$-partitions) of Hamming graphs with given parameters. We start with conditions on parameters of graphs and colorings that are necessary for their existence. Next we observe known constructions of perfect colorings and propose some new ones giving new parameters. At last, we deduce which parameters of colorings are covered by these constructions and give tables of admissible parameters of $2$-colorings in Hamming graphs $H(n,q)$ for small $n$ and $q$. Using the connection with perfect colorings, we construct an orthogonal array OA(2048,7,4,5).
description: 21 pages. Minor improvements