cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Scenario for the Dimensional Compactification in Eleven-Dimensional Space-Time
Creators: name: Montani, Giovanni
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the inhomogeneous multidimensional mixmaster model in view of appearing, near the cosmological singularity, a scenario for the dimensional compactification in correspondence to an 11-dimensional space-time. Our analysis candidates such a collapsing picture toward the singularity to describe the actual expanding 3-dimensional Universe and an associated collapsed 7-dimensional space. To this end, a conformal factor is determined in front of the 4-dimensional metric to remove the 4-curvature divergences and the resulting Universe expands with a power-law.inflation. Thus we provide an additional peculiarity of the eleven space-time dimensions in view of implementing a geometrical theory of unification.
description: 8 pages, no figures, to appear on Int. Journal of Mod. Phys. D
Cotunneling current through quantum dots with phonon-assisted spin-flip processes
Creators: name: Lehmann, Jörg
name: Loss, Daniel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider cotunneling through a quantum dot in the presence of spin-flip processes induced by the coupling to acoustic phonons of the surrounding. An expression for the phonon-assisted cotunneling current is derived by means of a generalized Schrieffer-Wolff transformation. The influence of the spin-phonon coupling on the heating of the dot is considered. The result is evaluated for the case of a parabolic semiconductor quantum dot with Rashba and Dresselhaus spin-orbit coupling and a method for the determination of the spin-phonon relaxation rate is proposed.
description: 11 pages, 6 figures. Minor changes: typos corrected and references added. Version accepted for publication in Phys. Rev. B
Flawed : Nietzsche on Singer's Utilitarian Bioethics of Infants with Disabilities
Creators: name: Batzli, Kiersten
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 5001
subject: Applied ethics
classificationCode: 5003
subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: Description to be added
The Metric Nature of Matter
Creators: name: Aastrup, Johannes
name: Grimstrup, Jesper M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a metric structure on a configuration space of gauge connections and show that it naturally produces a candidate for a non-perturbative, 3+1 dimensional Yang-Mills-Dirac quantum field theory on a curved background. The metric structure is an infinite-dimensional Bott-Dirac operator and the fermionic sector of the emerging quantum field theory is generated by the infinite-dimensional Clifford algebra required to construct this operator. The Bott-Dirac operator interacts with the $\mathbf{HD}(M)$ algebra, which is a non-commutative algebra generated by holonomy-diffeomorphisms on the underlying manifold, i.e. parallel-transforms along flows of vector fields. This algebra combined with the Bott-Dirac operator encode the canonical commutation and anti-commutation relations of the quantised bosonic and fermionic fields. The square of the Bott-Dirac operator produces both the Yang-Mills Hamilton operator and the Dirac Hamilton operator as well as a topological Yang-Mills term alongside higher-derivative terms and a metric invariant.
description: 37 pages
Microstructural evidence of impact-induced crystalplastic deformation and postshock annealing of quartz
Creators: name: Trepmann, Claudia A.
name: Spray, John G.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: During impact, rocks at the surface and accessible depths encounter extreme conditions. The hydrostatic component of the shock wave-associatedstress, the so-called shock pressure, canreach several tens of GPa in the central part of the structure. The shock crust and its comprehensive experimental calibration. Two distinct types of quartz microstructure in charnockitic target rocks and quartz veins of the Charlevoix impact structure are compared and contrasted in order to distinguish shock-induced microstructures that indicate a high hydrostatic stress component of the shock wave-associated stress from those that indicate a high deviatoric component, as well as associated microstructures that were generated during post-shock relaxation...
description: conference
New upper bounds for the bondage number of a graph in terms of its maximum degree and Euler characteristic
Creators: name: Huang, Jia
name: Shen, Jian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The bondage number $b(G)$ of a graph $G$ is the smallest number of edges whose removal from $G$ results in a graph with larger domination number. Let $G$ be embeddable on a surface whose Euler characteristic $χ$ is as large as possible, and assume $χ\leq0$. Gagarin-Zverovich and Huang have recently found upper bounds of $b(G)$ in terms of the maximum degree $Δ(G)$ and the Euler characteristic $χ(G)=χ$. In this paper we prove a better upper bound $b(G)\leqΔ(G)+\lfloor t\rfloor$ where $t$ is the largest real root of the cubic equation $z^3 + z^2 + (3χ- 8)z + 9χ- 12=0$; this upper bound is asymptotically equivalent to $b(G)\leqΔ(G)+1+\lfloor \sqrt{4-3χ} \rfloor$. We also establish further improved upper bounds for $b(G)$ when the girth, order, or size of the graph $G$ is large compared with its Euler characteristic $χ$.
description: 11 pages. arXiv admin note: text overlap with arXiv:1111.5629
Phaneropora Zezina 1981
Creators: name: Bitner, Maria Aleksandra
name: Logan, Alan
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Brachiopoda
Rhynchonellata
Terebratulida
Platidiidae
Phaneropora

description: Genus Phaneropora Zezina, 1981
 TYPE SPECIES. — Phaneropora galatheae Zezina, 1981, by original designation of Zezina (1981a: 18).
description: Published as part of Bitner, Maria Aleksandra & Logan, Alan, 2016, Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean, pp. 5-41 in Zoosystema 38 (1) on page 27, DOI: 10.5252/z2016n1a1, http://zenodo.org/record/4578148
Performance Verification of the EXtreme PREcision Spectrograph
Creators: name: Blackman, Ryan T.
name: Fischer, Debra A.
name: Jurgenson, Colby A.
name: Sawyer, David
name: McCracken, Tyler M.
name: Szymkowiak, Andrew E.
name: Petersburg, Ryan R.
name: Ong, J. M. Joel
name: Brewer, John M.
name: Zhao, Lily L.
name: Leet, Christopher
name: Buchhave, Lars A.
name: Tronsgaard, René
name: Llama, Joe
name: Sawyer, Travis
name: Davis, Allen B.
name: Cabot, Samuel H. C.
name: Shao, Michael
name: Trahan, Russell
name: Nemati, Bijan
name: Genoni, Matteo
name: Pariani, Giorgio
name: Riva, Marco
name: Probst, Rafael A.
name: Holzwarth, Ronald
name: Steinmetz, Tilo
name: Fournier, Paul
name: Pawluczyk, Rafal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The EXtreme PREcision Spectrograph (EXPRES) is a new Doppler spectrograph designed to reach a radial velocity measurement precision sufficient to detect Earth-like exoplanets orbiting nearby, bright stars. We report on extensive laboratory testing and on-sky observations to quantitatively assess the instrumental radial velocity measurement precision of EXPRES, with a focused discussion of individual terms in the instrument error budget. We find that EXPRES can reach a single-measurement instrument calibration precision better than 10 cm/s, not including photon noise from stellar observations. We also report on the performance of the various environmental, mechanical, and optical subsystems of EXPRES, assessing any contributions to radial velocity error. For atmospheric and telescope related effects, this includes the fast tip-tilt guiding system, atmospheric dispersion compensation, and the chromatic exposure meter. For instrument calibration, this includes the laser frequency comb (LFC), flat-field light source, CCD detector, and effects in the optical fibers. Modal noise is mitigated to a negligible level via a chaotic fiber agitator, which is especially important for wavelength calibration with the LFC. Regarding detector effects, we empirically assess the impact on radial velocity precision due to pixel-position non-uniformities (PPNU) and charge transfer inefficiency (CTI). EXPRES has begun its science survey to discover exoplanets orbiting G-dwarf and K-dwarf stars, in addition to transit spectroscopy and measurements of the Rossiter-McLaughlin effect.
description: 39 pages, 30 figures, accepted to AJ
Magnetische Suszeptibilitätsmessungen an Gängen vom Ostrand des Hauzenberger Granitplutons — Bayerischer Wald
Creators: name: Streit, Verena
name: Wall, Helga De
name: Dietl, Carlo
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Am Ostrand des Hauzenberger Plutons im südlichen Bayerischen Wald treten Ganggesteine auf, die spät- bis postvariskische Granitoide und ihre Rahmengesteine (anatektische und diatektische Gneise) durchschlagen. Die Intrusion der Gänge wurde auf 307Ma datiert (Siebel, pers. comm.). Sie stellen somit das jüngste magmatische Ereignis mit deutlichem zeitlichen Hiatus zur Platznahme der Granitplutone des Bayerischen Waldes zwischen 316 und 324Ma (Propach 2000) dar. Die Hauptverbreitung dieser Ganggesteine liegt in einem herzynisch verlaufenden Zug von Oberndorf im Nordwesten über Waldkirchen zum Oberfrauenwald und weiter nachWegscheid im Südosten. Die Gänge streichen in den zwei Hauptrichtungen WNW–ESE (etwa 140°), also in etwa parallel zum Bayerischen Pfahl, sowie annähernd N–S (etwa 170°). Die Gänge stehen generell saiger und haben Mächtigkeiten von wenigen dm bis zu 15 m. An 14 Gängen wurde im Gelände und Labor die magnetische Suszeptibilität gemessen.
description: conference
Determinantes para Cumprimento do Prazo de Projetos do Programa de Aquisição Alimentos – Doação Simultânea em Minas Gerais
Creators: name: Cirino, Jader Fernandes
name: Silva, Silas Vinicio Marini Da
name: Cirino, Jader Fernandes
name: Silva, Silas Vinicio Marini Da
Publisher: name: Unknown
Year: 2017
Subjects: subject: Finish project on time, food Acquisition Program, buy direct ode with simultaneous donation, Minas
subject: Gerais.

description: The study presents some determinants that affect the compliance of PAADS projects within the stipulated period of 10 months in Minas Gerais state for the period between 2009 and 2011. It was used the logistic regression model and the data was obtained from Cirino et al. (2013). The results showed that the variables have a Management Information System, have a production planning with farmers and number of projects of which the main responsible for the management of PAA-DS within the social organization participated of the elaboration increase the probability of finishing the project on time. On the other hand, the variables delay in delivery of products by farmers and number of projects of which the main responsible for the management of PAA-DS within the social organization participated in the management reduce the chances of social organizations finish the PAA-DS project within the stipulated time. Thus, there is the need for public policies to encourage the acquisition and implementation of a Management Information System for management of such projects, as well as the empowerment of organizations in order to enable them to implement the practice of administrative functions, as such functions they are linked to finish PAA-DS projects on time.
Discrimination of different volcanic rock units by magnetic properties — geothermal field at Reykjanes peninsula (SW-Iceland)
Creators: name: Vahle, C.
name: Kontny, A.
name: Dietze, F.
name: Audunsson, H.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: The geothermal field at Reykjanes peninsula is located at the boundary where the submarine Reykjanes Ridge passes over into the rift zone of southwestern Iceland. The geothermal field coincides with a magnetic low in the aeromagnetic anomaly map and is situated within a dense NE–SW fissure and fault zone. Surface geology is characterized by different historic fissure eruptions (youngest from 1226AD), shield lava (12.5–14.5 ka) and intercalated pillow basalt–hyaloclastite ridges probably formed during the last glacial episode (14.5–20 ka). During a field magnetic study in the vicinity of the geothermal field in summer 2005 different volcanic rock units have been sampled to correlate rock magnetic and magneto-mineralogical properties with magnetic field intensity. Additionally, measurements on a dense dolerite intrusion, recovered from the RN–19 borehole (2245–2248m depth) in May 2005 within the frame of IDDP, should shed light on the influence of crustal rocks on the total magnetic field intensity. Generally, the natural remanent magnetization and magnetic susceptibility, measured on rock specimen, is high, ranging between 2.5 and 33.6Am−1 and 2–37 ×10−3 SI, respectively...
description: conference
Pobreza, Vulnerabilidade e Desenvolvimento no Território Rural Zona Sul: o que aponta o Índice de Condição de Vida?
Creators: name: Toigo, Camila Horst
name: Conterato, Marcelo Antonio
name: Toigo, Camila Horst
name: Conterato, Marcelo Antonio
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Human development, poverty, vulnerability, rurality.

description: The paper presents the Living Conditions Index’s construction (LCI), based on the Capability Approach and on the Livelihoods Approach, and its application in Território Rural Zona Sul do Rio Grande do Sul. The research sought to reflect about the existence (or not) of concrete or potential situations of vulnerability and poverty. For this, the ICV’s results were analysed by indicators and by instances. The results showed that families were not exposed, a priori, to situations of vulnerability and poverty. However, given the proven existence of privations to achieve a higher welfare level, a question was made about a possible situation of resignedly accommodation within which these families could be immersed.
Padrão de Substituição entre Carnes no Consumo Domiciliar do Brasil
Creators: name: Travassos, Guilherme Fonseca
name: Coelho, Alexandre Bragança
name: Travassos, Guilherme Fonseca
name: Coelho, Alexandre Bragança
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Demand for meats, QUAIDS model, POF 2008-09.

description: There were major changes in household demand for meat in Brazil in recent years, such as the increasing importance of processed cuts. It is well known that changes in meat consumption may significantly affect household nutritional status and consequently people’s health and life quality. Therefore the aim of this study was to analyze the demand for meat from Brazilian families and understand the pattern of substitution between beef, pork and broiler as well as within these subgroups. Data was obtained from the Brazilian Household Consumption Survey (POF/IBGE 2008/2009). Demand patterns for meats that emerge from this study showed the importance of education, family composition and household location on determinants of meats acquisition. We also conclude that there is a changing trend of intra-group consumption in the case of chicken meat, a behavior that is not observed for pork and beef, where the intra-group exchange takes place only if the meat is considered to have good quality.
Neotectonics in the Swiss Alps—A late Alpine to postglacially active fault at the Gemmi Pass
Creators: name: Ustaszewski, Michaela
name: Pfiffner, Adrian
name: Herwegh, Marco
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: The area of the central and western Swiss Alps reveals not only the highest uplift rates of Switzerland (1.5mma−1 near Brig, Schlatter & Marti 2002), but also shows a strong concentration of earthquakes (e.g. Deichmann et al. 2004). This raised the question, whether the region hosts any linear topographic expressions that can be attributed to motion along potentially seismogenic faults. The area was therefore chosen for the investigation of postglacially active lineaments. Firstly, aerial photographs from the entire area were searched for linear features, which could be of gravitational or tectonic origin. Subsequently, selected lineaments were visited in the field to study their origin. We found scarce but positive evidence for neotectonic fault movements. One particular lineament that exhibited the most promising exposures was investigated in greater detail. This lineament is a prominent NW–SE striking fault located at the Gemmi Pass, runs perpendicularly to the regional fold axes and cuts through the Helvetic nappe stack. The position and orientation of the fault discounts gravitational reactivation. A close examination of the fault rocks reveals a long term evolution of this fault starting already at a late stage of Alpine nappe emplacement and related deformation.
description: conference
Seesaw Enhancement of Bi-large Mixing in Two-Zero Textures
Creators: name: Honda, Mizue
name: Kaneko, Satoru
name: Tanimoto, Morimitsu
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The seesaw enhancement of the bi-large mixings are discussed for the two-zero textures of the neutrino mass matrix. There are no large mixings in both Dirac neutrino mass matrix $m_D$ and right-handed Majorana neutrino mass matrix $M_R$, however, the bi-large mixing is realized via the seesaw mechanism. We present twelve sets of $m_D$ and $M_R$ for the seesaw enhancement and discuss the related phenomena, the $μ\to e+γ$ process and the leptogenesis. The decay rate of $μ\to e+γ$ is enough suppressed due to zeros in the Dirac neutrino mass matrix. Six $m_D$ lead to the lepton asymmetry, which can explain the baryon number in the universe. Other six $m_D$ are the real matrices, which give no CP asymmetry. Modified Dirac neutrino mass matrices are also discussed.
description: latex file, 16 pages
Formações de Clusters de Eficiência nos Mercados Futuros Agropecuários Mundiais de Soja
Creators: name: Rodrigues, Marcos Aurelio
name: Filho, João Gomes Martines
name: Rodrigues, Marcos Aurelio
name: Filho, João Gomes Martines
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Market efficiency, clustering, agricultural.

description: We analyzed the efficiency and the presence of clusters in the soybean complex future contracts (soybean, soybean meal and soybean oil) traded in the following future markets: Argentina (MTB), Brazil (BVMF), China (DCE), India (NCD), Japan (TKT), US (CBT) and South-Africa (SAF). Based on the metrics obtained by Euclidian distances of variance ratios, similar dependencies were found for all markets. The results suggest informational efficiency spread. Therefore, agents shall maintain perceptions over several international markets, given the interdependence found for prices in separate future markets.
Megerella Bitner & Logan 2016, n. gen.
Creators: name: Bitner, Maria Aleksandra
name: Logan, Alan
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Brachiopoda
Rhynchonellata
Terebratulida
Kraussinidae
Megerella

description: Genus Megerella n. gen.
 TYPE SPECIES. — Megerella hilleri n. gen., n. sp. by monotypy.
 ETYMOLOGY. — Referring to the affinity of this genus to the genera Megerlina and Megerlia.
DIAGNOSIS. — Small, subquadrate kraussinid with widely spaced ribs and a bifurcate loop with distal extensions uniting to form a complete oval ring, weak dental plates present in adults.
description: Published as part of Bitner, Maria Aleksandra & Logan, Alan, 2016, Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean, pp. 5-41 in Zoosystema 38 (1) on page 32, DOI: 10.5252/z2016n1a1, http://zenodo.org/record/4578148
Conditions to Provable System-Wide Optimal Coordination of Connected and Automated Vehicles
Creators: name: Mahbub, A M Ishtiaque
name: Malikopoulos, Andreas A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Connected and automated vehicles (CAVs) provide the most intriguing opportunity to improve energy efficiency, traffic flow, and safety. In earlier work, we addressed the constrained optimal coordination problem of CAVs at different traffic scenarios using Hamiltonian analysis. In this paper, we investigate the properties of the unconstrained problem and provide conditions under which different combination of the state and control constraints become active. We present a condition-based computational framework that improves on the standard iterative solution procedure of the constrained Hamiltonian analysis. Finally, we derive a closed-form analytical solution of the constrained optimal control problem and validate the proposed framework using numerical simulation. The solution can be derived without any recursive steps, and thus it is appropriate for real-time implementation on-board the CAVs.
Weitere Blattwespen (Hymenoptera: Symphyta) des Zoologischen Institutes der Universität Rostock, insbesondere aus den Sammlungen Jahn und Haupt
Creators: name: Jacobs, Hans-Joachim
Publisher: name: Geozon Science Media
Year: 2016

description: Blattwespen des Zoologischen Institutes der Universität Rostock, insbesondere die Sammlungen Jahn und Haupt, wurden revidiert. Das Material aus den Familien Argidae, Cephidae, Cimbicidae, Diprionidae, Orussidae, Pamphiliidae, Siricidae, Tenthredinidae und Xiphydriidae stammt aus zehn deutschen Bundesländern, hauptsächlich aus Brandenburg und Hessen. Für folgende Taxa fehlen Hinweise in den Checklisten für die jeweiligen Bundesländer in der Entomofauna Germanica (Blank et al. 2001): Für Brandenburg Tenthredo arcuata Forster, 1771 und Cimbex connatus (Schrank, 1776), für Hessen Sterictiphora angelicae (Panzer, 1799) und Tenthredopsis tarsata (Fabricius, 1804), für Mecklenburg-Vorpommern Orussus abietinus (Scopoli, 1763), für Sachsen Macrodiprion nemoralis (Enslin, 1917), für Nordrhein-Westfalen Pamphilius betulae Linnaeus, 1758, für Rheinland-Pfalz Urocerus gigas Linnaeus, 1758. Daneben finden sich Einzelfunde aus Frankreich, Liechtenstein, Polen, Slowakei, Spanien und der Schweiz.
description: research
Interface Between Family Farming and School Feeding: barriers and coping mechanisms from the perspective of different social actors in Southern Brazil
Creators: name: Mossmann, Márcia Pozzagnol
name: Busato, Maria Assunta
name: Teo, Carla Rosane Paz Arruda
name: Triches, Rozane Marcia
name: Mossmann, Márcia Pozzagnol
name: Busato, Maria Assunta
name: Teo, Carla Rosane Paz Arruda
name: Triches, Rozane Marcia
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Local development, rural development, nutrition programs and policies.

description: Family farming came to school as a public policy in Brazil, linked to National School Feeding Program (PNAE – Programa Nacional de Alimentação Escolar, in Portuguese). In order to discuss the interface between family farming and school feeding, regarding barriers and coping mechanisms, 35 social actors were interviewed in Santa Catarina, Southern Brazil. The barriers were cost of goods, bureaucracy, insufficient technical assistance, resistance to changes, weaknesses in the organization of farmers and public managers. The conclusion is that studied interface has being built in facing those obstacles with dialogue mechanisms, intersectionality, investment, training activities and organization.
Ice Age geomorphological Ahorn Valley and Ailsbach River terrace evolution – and its importance for the cave use possibilities by cave bears, top predators (hyenas, wolves and lions) and humans (Neanderthals, Late Palaeolithics) in the Frankonian Karst
Creators: name: Diedrich, Cajus
Publisher: name: Geozon Science Media
Year: 2013

description: The Sophie’s Cave in Upper Franconia, Bavaria (South Germany) eroded into Upper Jurassic reef dolomite and is a perfect model including all three stages of cave development ranging from a 1. ponor cave, to 2. intermediate periodically flooded cave to 3. dry cave. The key position of the cave along the Ahorn Valley, a side valley of the larger Wiesent River Valley, allow a cave genesis and evolution reconstruction which started in the Pliocene. The main refill took place in the Quaternary with Middle to Late Pleistocene river terrace sediments, present as relict sediments. Seven valley genesis stages between Pliocene to final Late Pleistocene can be separated in elevations of 440 to 375 meters a.s.l. The lowering of the Ailsbach River in the Ahorn Valley is important to understand the accessibility of caves for Pleistocene animals and Palaeolithic humans in different valley positions and elevations during different times in Upper Franconia, and the natural erosive opening/closing of cave entrances towards drainage valleys.
description: research
Impactos Econômicos do Aumento das Exportações Brasileiras de Produtos Agrícolas e Agroindustriais para Diferentes Destinos
Creators: name: Perobelli, Fernando Salgueiro
name: Vale, Vinicius De Almeida
name: Betarelli Junior, Admir Antonio
name: Cunha, Ramon Goulart
name: Perobelli, Fernando Salgueiro
name: Vale, Vinicius De Almeida
name: Betarelli Junior, Admir Antonio
name: Cunha, Ramon Goulart
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agribusiness, international trade, computable general equilibrium models.

description: Brazilian export agribusiness activities are considered strategic to the Brazilian trade policy because, besides the contribution to the trade surplus and economic growth in the country, these activities reveal a high degree of insertion in the international trade, both by the number of existing traditional markets and by the capacity to explore new potential markets. Thus, this study analyzes the probable effects of an external demand expansion for agricultural and agroindustrial products in some traditional and potential market, using a Computable General Equilibrium (CGE) model for Brazil, LATES-BR, calibrated to 2011. The projections allow us to do a quantitative assessment of the relative importance of the Brazilian agribusiness traditional and potential markets and it contributes to the ongoing debate of the National Export Plan (PNE). The impacts size of the potential markets, especially countries in South America, when compared with traditional markets, such as the United States of America, is much lower. However, as discussed in our study, the most important issue is not the impact size, but the movement in macroeconomic terms and the trade results, i.e. the potential to explore new markets as an alternative to increase the Brazilian share in the international trade.
Custos Sociais e Orçamentários das Políticas de Garantia de Preços no Brasil – estudo dos casos de arroz e milho
Creators: name: Schwantes, Fernanda
name: Caetano Bacha, Carlos José
name: Schwantes, Fernanda
name: Caetano Bacha, Carlos José
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Price guarantee policy, social cost, budget cost, rice, corn.

description: This paper aims to measure the social and budgetary costs of the price guarantee policy for rice and corn in the period from 1986/87 to 2012/13. These years faced important changes in the mentioned policy and both products have been systematically afforded by this policy. The paper develops mathematical models to calculate the social cost for three price guarantee policies (price subsidies, government purchases and price insurance) and the social costs were estimated only when the minimum price exceeds the market price. It was verified that PGPM policies were operationalized even when the minimum price was below the market price. Comparing social and budgetary costs during the above crop years for each ton of rice and corn, in general, it was found that the lowest social cost was for a price insurance program, followed by subsidy price programs and the highest social cost arises for the purchasing programs. The findings would help policy-makers when deciding what kind of price guarantee policy needs to be performed.
Eficiência Produtiva Regional da Agricultura Brasileira: uma análise de fronteira estocástica
Creators: name: Scherer, Clauber Eduardo Marchezan
name: Porsse, Alexandre Alves
name: Scherer, Clauber Eduardo Marchezan
name: Porsse, Alexandre Alves
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agriculture, regional productivity, stochastic production function, data spatial analysis.

description: This study aims to analyze the regional productive efficiency of agriculture using estimation techniques of stochastic production frontiers and exploratory spatial data analysis. The estimation was carried out for permanent and temporary crops separately using data from 2006 Agricultural Census. The results of production equation show that productive factors such as land area and labor promote productivity gains to those crops related to respectively increase returns to scale and technological intensity. Results also show that the linkage between efficiency and specialization is positive for permanent crops but negative for temporary crops. Additionally, the efficiency of temporary crops seems more sensitive to geographical factors as precipitations, temperature and biomes. The spatial analysis applied to permanent crops identified high efficiency clusters in Northeast and South and low efficiency clusters in the North. Considering temporary crops, it was identified high efficiency clusters in Northeast and Southeast and low efficiency clusters concentrated in North and Northeast of Brazil.
Additional file 2 of Low DLG2 gene expression, a link between 11q-deleted and MYCN-amplified neuroblastoma, causes forced cell cycle progression, and predicts poor patient survival
Creators: name: Keane, Simon
name: Améen, Sophie
name: Lindlöf, Angelica
name: Ejeskär, Katarina
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
Inferring (Sub)millimeter Dust Opacities and Temperature Structure in Edge-on Protostellar Disks From Resolved Multi-Wavelength Continuum Observations: The Case of the HH 212 Disk
Creators: name: Lin, Zhe-Yu Daniel
name: Lee, Chin-Fei
name: Li, Zhi-Yun
name: Tobin, John
name: Turner, Neal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Sub)millimeter dust opacities are required for converting the observable dust continuum emission to the mass, but their values have long been uncertain, especially in disks around young stellar objects. We propose a method to constrain the opacity $κ_ν$ in edge-on disks from a characteristic optical depth $τ_{0,ν}$, the density $ρ_0$ and radius $R_0$ at the disk outer edge through $κ_ν=τ_{0,ν}/(ρ_0 R_0)$ where $τ_{0,ν}$ is inferred from the shape of the observed flux along the major axis, $ρ_0$ from gravitational stability considerations, and $R_0$ from direct imaging. We applied the 1D semi-analytical model to the embedded, Class 0, HH 212 disk, which has high-resolution data in ALMA Band 9, 7, 6, and 3 and VLA Ka band ($λ$=0.43, 0.85, 1.3, 2.9, and 9.1 mm). The modeling of the HH 212 disk is extended to 2D through RADMC-3D radiative transfer calculations. We find a dust opacity of $κ_ν\approx $ $1.9\times 10^{-2}$, $1.3\times 10^{-2}$, and $4.9\times 10^{-3}$ cm$^2$ per gram of gas and dust for ALMA Bands 7, 6, and 3, respectively with uncertainties dependent on the adopted stellar mass. The inferred opacities lend support to the widely used prescription $κ_λ=2.3\times 10^{-2} (1.3 {\rm mm}/λ)$ cm$^2$ g$^{-1}$ advocated by Beckwith et al. (1990). We inferred a temperature of ~45K at the disk outer edge which increases radially inward. It is well above the sublimation temperatures of ices such as CO and N$_2$, which supports the notion that the disk chemistry cannot be completely inherited from the protostellar envelope.
description: 20 pages, 13 figures, replaced with accepted version, published in MNRAS
Novel properties of wave propagation in biaxially anisotropic left-handed materials
Creators: name: Shen, Jian Qi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Some physically interesting properties and effects of wave propagation in biaxially anisotropic left-handed materials are investigated in this paper. We show that in the biaxially gyrotropic left-handed material, the left-right coupling of circularly polarized light arises due to the negative indices in permittivity and permeability tensors of gyrotropic media. It is well known that the geometric phases of photons inside a curved fiber in previous experiments often depend on the cone angles of solid angles subtended by a curve traced by the direction of wave vector of light, at the center of photon momentum space. Here, however, for the light propagating inside certain anisotropic left-handed media we will present a different geometric phase that is independent of the cone angles. The extra phases of electromagnetic wave resulting from the instantaneous helicity inversion at the interfaces between left- and right- handed (LRH) media is also studied in detail by using the Lewis-Riesenfeld invariant theory. Some interesting applications (e.g., controllable position-dependent frequency shift, detection of quantum-vacuum geometric phases and helicity reversals at the LRH interfaces etc.) of above effects and phenomena in left-handed media is briefly discussed.
description: 18 pages, 0 figure, Latex
Zur Mikromorphologie und zum Tonmineralbestand von Böden ungarischer Lößprofile und ihre paläoklimatische Auswertung
Creators: name: Bronger, Arnt
Publisher: name: Geozon Science Media
Year: 1970

description: Gegenüber den westlichen Nachbargebieten sind Lößprofile in Ungarn durch fossile Böden besonders jungpleistozänen Alters detaillierter untergliedert. Für ihre paläoklimatische Auswertung dienen neben dem Geländebefund einmal mikromorphologische Beobachtungen, die eine genauere Zuordnung der Paläoböden jeweils zu einem Bodentyp als Ausdruck ihrer Genese gestatten. — Untersuchungen zum Tonmineralbestand der Lösse und der jeweils aus ihnen entstandenen Böden ermöglichen nähere Aussagen über das Ausmaß der Neubildung der einzelnen Minerale in den Tonteilfraktionen und damit unter bestimmten Voraussetzungen Hinweise auf die Intensität und Dauer einer Bodenbildung. In allen Böden überwiegt die Neubildung des Montmorillonits bei weitem. Sie ist fast ausschließlich auf die Feintonfraktion beschränkt, jedoch sind die hohen Montmorillonitanteile auch in den B-Horizonten höchstens zu einem geringen Teil auf eine Tonverlagerung zurückzuführen — mikromorphologisch nachweisbar dadurch, daß Fließplasma (Braunlehm-Teilplasma) nicht oder nur in Spuren zu beobachten ist. Die Zunahme der einzelnen Tonmineralarten ist in den basalen Waldböden des Pakser Profils nicht wesentlich höher als in den jungpleistozänen Waldsteppenböden (mit Ausnahme des sehr schwachen „F(4a)"-Bodens in Mende), in diesen aber mindestens so hoch wie im rezenten Braunerde-Tschernosem, wobei weitere rezente Lößböden in die vergleichende Untersuchung mit einzubeziehen sind. Die jungpleistozänen Waldsteppenböden („F(4)" bis „F(2)") dieses Raumes müssen nach den vorgelegten Untersuchungsergebnissen als Zeugen nicht eines interstadialen, sondern eines warmzeitlichen Klimas etwa vergleichbar dem des heutigen angesehen werden.
description: research
Sensitivity Minimization by Strongly Stabilizing Controllers for a Class of Unstable Time-Delay Systems
Creators: name: Gumussoy, Suat
name: Ozbay, Hitay
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Weighted sensitivity minimization is studied within the framework of strongly stabilizing (stable) H-infinity controller design for a class of infinite dimensional systems. This problem has been solved by Ganesh and Pearson, [11], for finite dimensional plants using Nevanlinna-Pick interpolation. We extend their technique to a class of unstable time delay systems. Moreover, we illustrate suboptimal solutions, and their robust implementation.
Econometric Analysis on Efficiency of Estimator
Creators: name: Khoshnevisan, M.
name: Kaymram, F.
name: Singh, Housila P.
name: Singh, Rajesh
name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 92B28, 62P20

description: This paper investigates the efficiency of an alternative to ratio estimator under the super population model with uncorrelated errors and a gamma-distributed auxiliary variable. Comparisons with usual ratio and unbiased estimators are also made.
description: 11 pages, 6 tables
UGC-VQA: Benchmarking Blind Video Quality Assessment for User Generated Content
Creators: name: Tu, Zhengzhong
name: Wang, Yilin
name: Birkbeck, Neil
name: Adsumilli, Balu
name: Bovik, Alan C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recent years have witnessed an explosion of user-generated content (UGC) videos shared and streamed over the Internet, thanks to the evolution of affordable and reliable consumer capture devices, and the tremendous popularity of social media platforms. Accordingly, there is a great need for accurate video quality assessment (VQA) models for UGC/consumer videos to monitor, control, and optimize this vast content. Blind quality prediction of in-the-wild videos is quite challenging, since the quality degradations of UGC content are unpredictable, complicated, and often commingled. Here we contribute to advancing the UGC-VQA problem by conducting a comprehensive evaluation of leading no-reference/blind VQA (BVQA) features and models on a fixed evaluation architecture, yielding new empirical insights on both subjective video quality studies and VQA model design. By employing a feature selection strategy on top of leading VQA model features, we are able to extract 60 of the 763 statistical features used by the leading models to create a new fusion-based BVQA model, which we dub the \textbf{VID}eo quality \textbf{EVAL}uator (VIDEVAL), that effectively balances the trade-off between VQA performance and efficiency. Our experimental results show that VIDEVAL achieves state-of-the-art performance at considerably lower computational cost than other leading models. Our study protocol also defines a reliable benchmark for the UGC-VQA problem, which we believe will facilitate further research on deep learning-based VQA modeling, as well as perceptually-optimized efficient UGC video processing, transcoding, and streaming. To promote reproducible research and public evaluation, an implementation of VIDEVAL has been made available online: \url{https://github.com/tu184044109/VIDEVAL_release}.
description: IEEE Transactions on Image Processing 2021
Radiative mass generation and suppression of supersymmetric contributions to flavor changing processes
Creators: name: Ferrandis, Javier
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the possibility that the masses for the first two generations of fermions and the quark flavor violation are generated radiatively in the Minimal Supersymmetric Standard Model. We assume that the source of all flavor violation resides in the the supersymmetry breaking sector and is transmitted radiatively to the Standard Model fermion sector through finite corrections at low energy. The approximate radiative alignment between the Yukawa and soft supersymmetry breaking matrices helps to suppress some of the supersymmetric contributions to flavor changing processes, overcoming current experimental constraints. This mechanism may also explain the non-observation of proton decay, since flavor conservation in the superpotential would imply the suppression of dimension five operators in supersymmetric grand unified theories.
description: 10 pages, RevTex 4
title: The representation of time in data warehouses
Creators: name: Todman, Christopher Derek
Publisher: name: The Open University
Year: 1999

description: This thesis researches the problems concerning the specification and implementation of the temporal requirements in data warehouses. The thesis focuses on two areas, firstly, the methods for identifying and capturing the business information needs and associated temporal requirements at the conceptual level and; secondly, methods for classifying and implementing the requirements at the logical level using the relational model. At the conceptual level, eight candidate methodologies were investigated to examine their suitability for the creation of data models that are appropriate for a data warehouse. The methods were evaluated to assess their representation of time, their ability to reflect the dimensional nature of data warehouse models and their simplicity of use. The research found that none of the methods under review fully satisfied the criteria. At the logical level, the research concluded that the methods widely used in current practice result in data structures that are either incapable of answering some very basic questions involving history or that return inaccurate results. Specific proposals are made in three areas. Firstly, a new conceptual model is described that is designed to capture the information requirements for dimensional models and has full support for time. Secondly, a new approach at the logical level is proposed. It provides the data structures that enable the requirements captured in the conceptual model to be implemented, thus enabling the historical questions to be answered simply and accurately. Thirdly, a set of rules is developed to help minimise the inaccuracy caused by time. A guide has been produced that provides practitioners with the tools and instructions on how to implement data warehouses using the methods developed in the thesis.
Adaptive motion control of parallel robots with kinematic and dynamic uncertainties
Creators: name: Harandi, M. Reza J.
name: Khalilpour, S. A.
name: Taghirad, Hamid. D.
name: Romero, Jose Guadalupe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: One of the most challenging issues in adaptive control of robot manipulators with kinematic uncertainties is requirement of the inverse of Jacobian matrix in regressor form. This requirement is inevitable in the case of the control of parallel robots, whose dynamic equations are written directly in the task space. In this paper, an adaptive controller is designed for parallel robots based on representation of Jacobian matrix in regressor form, such that asymptotic trajectory tracking is ensured. The main idea is separation of determinant and adjugate of Jacobian matrix and then organize new regressor forms. Simulation and experimental results on a 2--DOF R\underline{P}R and 3--DOF redundant cable driven robot, verify promising performance of the proposed methods.
Alte Strandlinien des Pleistozäns in Nordamerika und Europa
Creators: name: Woldstedt, Paul
Publisher: name: Geozon Science Media
Year: 1960

description: An der Atlantischen Ostküste der Vereinigten Staaten sind — abgesehen von dem Silver-Bluff-Strand, der in das klimatische Optimum der Postglazialzeit gestellt wird — drei höhere alte Strände vorhanden: der Pamlico-Strand in rund 8 m ü.d.M., der Wicomico-Strand in ±30 m und der Okefenokee-Strand in rund 45 m ü.d.M. Die Strände sind nicht in allen Gebieten gleich gut entwickelt, liegen aber z. B. in Teilen von Georgia und Florida alle drei deutlich übereinander. Mit dem Pamlico-Strand sind die marinen Pamlico- oder Cape-May-Schichten verknüpft. Diese setzen sich nach Norden im Gardiners-Ton von Long Island und den südlichen Neuengland-Staaten fort. Sie gehören in die Sangamon-Interglazialzeit und entsprechen den nordwesteuropäischen Eem-Schichten. Das Alter der höheren Strände bedarf näherer Untersuchung. Am ehesten wird man bei dem Wicomico-Strand an ein Äquivalent des europäischen Tyrrhens denken. In der Höhe des Okefenokee-Strandes haben wir in Europa ebenfalls Äquivalente; wir wissen aber bisher nicht, ob sie in die Mindel/Riß- oder die Günz/Mindel-Interglazialzeit gehören.
description: research
Agelena labyrinthica
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Agelenidae
Agelena
Agelena labyrinthica

description: Agelena labyrinthica (Clerck, 1757)
(Fig. 3)
NEW DATA. — ♂ Donnas: Pramotton, 322 m, in the hedge of a garden 27.VII.2009, 1 ♀, leg. Paschetta.
LITERATURE. — Pesarini 1997; [Isaia 2005].
CHOROTYPE. — PAL.
MACROHABITAT. — Synantropic habitats.
NOTES. — Isaia (2005) listed this species in his previous regional checklist on the base of Pesarini (1997), who did not provided specifical records for Aosta Alley but reported it for the whole of Italy. On this base, Rossi & Bosio (2012) considered it doubtful. The occurrence of the species in Aosta Valley is here validated by new original data.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 53, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Additional file 5 of Association between incident delirium and 28- and 90-day mortality in critically ill adults: a secondary analysis
Creators: name: Duprey, Matthew S.
name: Boogaard, Mark Van Den
name: Hoeven, Johannes G. Van Der
name: Pickkers, Peter
name: Briesacher, Becky A.
name: Saczynski, Jane S.
name: Griffith, John L.
name: Devlin, John W.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 5. Sensitivity analyses controlling for duration of mechanical ventilation. Additional analyses conducted to look at the effect of duration of mechanical ventilation on the associations of interest.