cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inflationary Attractors in $F(R)$ Gravity
Creators: name: Odintsov, S. D.
name: Oikonomou, V. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this letter we shall demonstrate that the viable $F(R)$ gravities can be classified mainly into two classes of inflationary attractors, either the $R^2$ attractors or the $α$-attractors. To show this, we shall derive the most general relation between the tensor-to-scalar ratio $r$ and the spectral index of primordial curvature perturbations $n_s$, namely the $r-n_s$ relation, by assuming that the slow-roll condition constrains the values of the slow-roll indices. As we show, the relation between the tensor-to-scalar ratio and the spectral index of the primordial curvature perturbations has the form $r\simeq \frac{48 (1-n_s)^2}{(4-x)^2}$, where the dimensionless parameter $x$ contains higher derivatives of the $F(R)$ gravity function with respect to the Ricci scalar, and it is a function of the $e$-foldings number $N$ and may also be a function of the free parameters of the various $F(R)$ gravity models. For $F(R)$ gravities which have a spectral index compatible with the observational data and also yield $x\ll 1$, these belong to the $R^2$-type of attractors, with $r\sim 3 (1-n_s)^2$, and these are viable theories. Moreover, in the case that $x$ takes larger values in specific ranges and is constant for a given $F(R)$ gravity, the resulting $r-n_s$ relation has the form $r\sim 3 α(1-n_s)^2$, where $α$ is a constant. Thus we conclude that the viable $F(R)$ gravities may be classified into two limiting types of $r-n_s$ relations, one identical to the $R^2$ model at leading order in $x$, and one similar to the $α$-attractors $r-n_s$ relation, for the $F(R)$ gravity models that yield $x$ constant. Finally, we also discuss the case that $x$ is not constant.
description: PLB Accepted
Desenvolvimento territorial rural no Brasil: limites e potencialidades dos CONSADs
Creators: name: Ortega, Antonio César
name: Ortega, Antonio César
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: territorial development
subject: rural development
subject: local social ar-rangements
subject: food safety
subject: CONSADs.

description: This paper aims at evaluating the capacity of the territorial appro-ach to contribute to poverty issues and Brazilian social inequalities, repre-senting an alternative of employment and income generation in depressed rural territories. Through Consórcios de Segurança Alimentar e Desenvolvi-mento Local-CONSADs (Food Safety Consortia and Local Development) we analyzed the potentialities and difficulties the strategy is facing to establish the cooperation between public power and civil society regarding fomenta-tion, logistic support and canalization of resources for territorial initiatives, projects and structuring actions that seek employment and income genera-tion with food safety warranty and local development.
Hennings, Emmy: Mutter von der immerwährenden Hilfe (2 Fassungen) / Hennings, Emmy: Mutter Gottes von der immerwährenden Hilfe (1. Fassung)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Additional file 3 of Mortality in sepsis and septic shock in Europe, North America and Australia between 2009 and 2019— results from a systematic review and meta-analysis
Creators: name: Bauer, Michael
name: Gerlach, Herwig
name: Vogelmann, Tobias
name: Preissing, Franziska
name: Stiefel, Julia
name: Adam, Daniel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3. Table of studies per endpoint and Risk of bias assessment. Table of studies shows which study was used for which endpoint in the meta-analysis.
Paramritodus spatiosus Xue & Zhang, 2020: 2020
Creators: name: Yu, Tingting
name: Zhu, Qiuyi
name: Li, Guoqing
name: Zhang, Bin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Paramritodus
Paramritodus spatiosus

description: Paramritodus spatiosus Xue & Zhang
(Figs 4, 10, 35–43)
Paramritodus spatiosus Xue & Zhang, 2020: 1455, figs. 9, 18.
Diagnosis. Crown (Figs 4, 10) with pair of black spots. Pronotum (Fig. 4) with pair of triangular black markings on anterior margin, mesonotum (Fig. 4) yellowish with basal triangles. Gena (Fig. 10) pale yellowish. Forewings (Fig. 4) yellowish brown except clavus yellow green.
Pygofer (Fig. 36) inner process concave dorsally and not reaching caudal margin in lateral view. Aadeagus (Figs 37–38) with preatrium broadened, process longer than half length of shaft, dorsal apodeme poorly developed; aedeagal shaft laterally obviously curved dorsally, and with elongate process on each side above preatrium. Gonopore subapical. Style (Fig. 41) curved dorsally.
Material examined. 12 ♂, 8 ♀, CHINA, Yunnan Province, Baoshan City, Gaoligong National Nature Reserve, 2100 m, 14.v.2009, coll. Bin Li (IMNU); 1 ♂, Yunnan Province, Baoshan City, Gaoligong National Nature Reserve, 2400 m, 1.vi.2009, coll. Bin Zhang (IMNU); 5 ♂, 7 ♀, Yunnan Province, Baoshan City, Jingdong County, Taizhong village, 18.viii.2009, coll. Bin Zhang (IMNU); 3 ♂, 5 ♀, Yunnan Province, Dali City, Yangbin County, Shunbi village, 1700 m, 15.viii.2009, coll. Bin Zhang (IMNU).
Distribution. China (Yunnan).
Remarks. This species has a pair of processes on the aedeagal preatrium as in P. introflexus, P. triangulus, and P. concavicaudus. It differs from P. introflexus and P. triangulus in having the aedeagal processes longer and the gonopore near the subapex, and from P. concavicaudus in having the style lacking a bifucate process on the apophysis.
description: Published as part of Yu, Tingting, Zhu, Qiuyi, Li, Guoqing & Zhang, Bin, 2024, Review of Chinese species of genus Paramritodus Xue & Zhang (Hemiptera: Cicadellidae) with description of a new species, pp. 583-592 in Zootaxa 5501 (4) on page 587, DOI: 10.11646/zootaxa.5501.4.8, http://zenodo.org/record/13745521
Glueball Spectrum and Regge Trajectory from Supergravity
Creators: name: Caceres, Elena
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Brief review of the status of the glueball spectrum in the deformed conifold background. Talk based on work done with R. Hernandez and X. Amador.
description: Talk presented at the Eighth Workshop on Non-Perturbative QCD, June 2004, Paris
Additional file 4 of Mortality in sepsis and septic shock in Europe, North America and Australia between 2009 and 2019— results from a systematic review and meta-analysis
Creators: name: Bauer, Michael
name: Gerlach, Herwig
name: Vogelmann, Tobias
name: Preissing, Franziska
name: Stiefel, Julia
name: Adam, Daniel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 4: Further results. Figure S1. Joinpoint estimation of 90-day sepsis mortality. Results from the estimation of pooled 90-day sepsis mortality rates per year. The Joinpoint analysis shows the timepoint when trends in mortality rates change. A trend change of 90-day sepsis mortality was found in 2011. Figure S2. Linear regression of age and mortality rates. Correlation of mortality rates and age were estimated for A) 30-day septic shock B) 90-day septic shock C) 30-day sepsis and D) 90-day sepsis.
PRONAF dez anos depois: resultados e perspectivas para o desenvolvimento rural
Creators: name: Guanziroli, Carlos E.
name: Guanziroli, Carlos E.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: agricultural economics
subject: costs evaluation and efficiency
subject: fa-mily farming

description: The main goal of this article is to evaluate efficiency and effi-cacy of PRONAF (Program for the Strengthening of Family Farming) with respect to income generation and melioration of quality of life in the last ten years in the following matter: Comparison credit allowances with treasury costs, analyzing focalization of PRONAF and resuming 13 eva-luations made during last ten years by authors of different ideological and academic backgrounds.
Novel Copper Fluoride Analogs of Cuprates
Creators: name: Rybin, Nikita
name: Novoselov, Dmitry. Y.
name: Korotin, Dmitry M.
name: Anisimov, Vladimir I.
name: Oganov, Artem. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: On the basis of the first-principles evolutionary crystal structure prediction of stable compounds in the Cu-F system, we predict two experimentally unknown stable phases -- Cu2F5 and CuF3. Cu2F5 comprises two interacting magnetic subsystems with the Cu atoms in the oxidation states +2 and +3. CuF3 contains magnetic Cu 3+ ions forming a lattice with the antiferromagnetic coupling. We showed that some or all of Cu 3+ ions can be reduced to Cu 2+ by electron doping, as in the well known KCuF3. Significant similarities between the electronic structures calculated in the framework of DFT+U suggest that doped CuF3 and Cu2F5 may exhibit high-temperature superconductivity with the same mechanism as in cuprates.
The electro-disintegration of few body systems revisited
Creators: name: Laget, J. -M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent studies of the electro-disintegration of the few body systems at JLab have revived the field. Not only recoil momentum distributions have been determined in a single shot. But also they confirm that the diagrammatic approach, which I developed 25 years ago, is relevant to analyze them, provided that the Nucleon-Nucleon scattering amplitude, determined in the same energy range, is used. They provide us with a solid starting point to address the issue of the propagation of exotic components of hadrons in nuclear matter
description: 6 pages,7 figures
Optical design of diffraction-limited X-ray telescopes
Creators: name: Chalifoux, Brandon D.
name: Heilmann, Ralf K.
name: Marshall, Herman L.
name: Schattenburg, Mark L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Astronomical imaging with micro-arcsecond ($μ$as) angular resolution could enable breakthrough scientific discoveries. Previously-proposed $μ$as X-ray imager designs have been interferometers with limited effective collecting area. Here we describe X-ray telescopes achieving diffraction-limited performance over a wide energy band with large effective area, employing a nested-shell architecture with grazing-incidence mirrors, while matching the optical path lengths between all shells. We present two compact nested-shell Wolter Type 2 grazing-incidence telescope designs for diffraction-limited X-ray imaging: a micro-arcsecond telescope design with 14 $μ$as angular resolution and 2.9 m$^2$ of effective area at 5 keV photon energy ($λ$=0.25 nm), and a smaller milli-arcsecond telescope design with 525 $μ$as resolution and 645 cm$^2$ effective area at 1 keV ($λ$=1.24 nm). We describe how to match the optical path lengths between all shells in a compact mirror assembly, and investigate chromatic and off-axis aberrations. Chromatic aberration results from total external reflection off of mirror surfaces, and we greatly mitigate its effects by slightly adjusting the path lengths in each mirror shell. The mirror surface height error and alignment requirements for diffraction-limited performance are challenging but arguably achieveable in the coming decades. Since the focal ratio for a diffraction-limited X-ray telescope is extremely large ($f/D$~10$^5$), the only important off-axis aberration is curvature of field, so a 1 arcsecond field of view is feasible with a flat detector. The detector must fly in formation with the mirror assembly, but relative positioning tolerances are on the order of 1 m over a distance of some tens to hundreds of kilometers. While there are many challenges to achieving diffraction-limited X-ray imaging, we did not find any fundamental barriers.
description: 20 pages, 11 figures, accepted for publication in Applied Optics
Amritodus ANUFRIEV 1970
Creators: name: Xue, Qingquan
name: Zhang, Yalin
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Amritodus

description: Amritodus Anufriev, 1970: 376.
Type species: Idiocerus atkinsoni Lethierry, 1889; by original designation.
Diagnosis: Body generally yellowish brown or brown. Crown with a pair of black spots on either side of midline. Face yellowish or brownish. Pronotum with a pair of black markings on anterior margin. Head wider than pronotum. Crown finely rugose. Head wider than long, ocelli closer to eyes than to each other; lora broad; anteclypeus apex wider than base; rostrum broadened apically. Combined length of mesoscutum and scutellum longer than pronotum, shagreen. Forewing with m-cu1 cross-vein, without r-m1 and m-cu2 cross-veins. Hind femur with 2 + 1 apical setae. Hind tibiae with 18–20 setae on row PD, six setae on AD and six to eight setae on row AV. Hind basitarsus with four platellae. Male pygofer longer than height, with a pair of inner processes on the ventral margin; apical half of inner processes obviously curved dorsad. Subgenital plate with hair-like setae on dorsal and ventral margin. Style curved dorsally, with dense and short setae on dorsal margin. Aedeagus S-shaped, preatrium well developed, as long as or longer than shaft; dorsal apodeme developed; gonopore subapical on ventral margin.
Female seventh sternite wider than long, with caudal margin obviously concave. Ovipositor extending beyond pygofer. First valvulae apical one-third to one-quarter curved dorsad, apex attenuated, with sculpture strigate. Second valvulae curved dorsally; dorsal margin with more than ten teeth.
Distribution: Bangladesh, China, India, Myanmar, Pakistan, Sri Lanka and Thailand.
Remarks: Amritodus is similar to Idioscopus, but differs from the latter in having an elongated aedeagal preatrium, and the aedeagal shaft short and S-shaped without a long process near the apex.
description: Published as part of Xue, Qingquan & Zhang, Yalin, 2020, Phylogeny and revision of the Oriental leafhopper genus Amritodus (Hemiptera: Cicadellidae: Idiocerini), pp. 1438-1463 in Zoological Journal of the Linnean Society 189 on page 1445
The Ultraviolet flash accompanying GRBs from neutron-rich internal shocks
Creators: name: Fan, Y. Z.
name: Wei, D. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the neutron-rich internal shocks model for Gamma-ray Burts (GRBs), the Lorentz factors (LFs) of ions shells are variable, so are the LFs of accompanying neutron shells. For slow neutron shells with a typical LF tens, the typical beta-decay radius reads R_{β,s} several 10^{14} cm, which is much larger than the typical internal shocks radius 10^{13} cm, so their impact on the internal shocks may be unimportant. However, as GRBs last long enough (T_{90}>20(1+z) s), one earlier but slower ejected neutron shell will be swept successively by later ejected ion shells in the range 10^{13}-10^{15} cm, where slow neutrons have decayed significantly. We show in this work that ion shells interacting with the beta-decay products of slow neutron shells can power a ultraviolet (UV) flash bright to 12th magnitude during the prompt gamma-ray emission phase or slightly delayed, which can be detected by the upcoming Satellite SWIFT in the near future.
description: 6 pages (2 eps figures), accepted for publication in ApJL
Probabilistic inference with large discrete domains
Creators: name: Sharma, Rita
Publisher: name: University of British Columbia
Year: 2010

description: The straightforward representation of many real world problems is in terms of discrete random variables with large or infinite domains. For example, in a domain where we are trying to identify a person, we may have variables that have as domains, a set of all names, a set of all postal codes, and a set of all credit card numbers. The task usually reduces to performing probabilistic inference, i.e., compute the probability of some values of some random variables given the values of some other variables. Bayesian networks are a compact way to represent joint probability distributions. This thesis is concerned with probabilistic inference in Bayesian networks that have discrete random variables with large or infinite domains. Carrying out inference in Bayesian networks that have variables with large domains is a difficult problem. For efficient inference, we consider cases where there is some structure that can be exploited to make inference efficient. In this thesis we consider two kinds of structures that can be exploited for efficient inference. These structures allow us to partition the large number of values in equivalence classes. Rather than reasoning about every value of a variable individually, we can reason about a set of values in a single step. We first consider the case where there are intensional definitions of the conditional probability distributions. To represent these conditional probabilities, we introduce a CPD language that allows us to define the conditional probabilities procedurally, in terms of predicates and functions. We present an inference algorithm, Large Domain VE, for the CPD language that uses this representation to partitions the domains of the variables dynamically. The partitions depend on what is observed and what is queried. We apply Large Domain VE to the person identification problem that has variables with large domains. The second case we consider where there is a priori internal structure on the values of the variables. In particular, we consider the case where the values of the variables are represented as tree hierarchies. We call such variables hierarchically structured variables. We present a language for representing the conditional probabilities of Bayesian networks with hierarchically structured variables. To perform inference in Bayesian networks with hierarchically structured variables we construct an abstract Bayesian network dynamically, given some evidence and a query, by collapsing the hierarchies to include only those values necessary to answer the query. We can answer the query from the abstract Bayesian network using any standard inference algorithm. Finally, we show how both intensional definitions of the conditional probability distributions and hierarchically structured values can be put together to produce a general framework that can be applied to a more general class of problems.
Poincare Recurrences and Topological Diversity
Creators: name: Kleban, M.
name: Porrati, M.
name: Rabadan, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Finite entropy thermal systems undergo Poincare recurrences. In the context of field theory, this implies that at finite temperature, timelike two-point functions will be quasi-periodic. In this note we attempt to reproduce this behavior using the AdS/CFT correspondence by studying the correlator of a massive scalar field in the bulk. We evaluate the correlator by summing over all the SL(2,Z) images of the BTZ spacetime. We show that all the terms in this sum receive large corrections after at certain critical time, and that the result, even if convergent, is not quasi-periodic. We present several arguments indicating that the periodicity will be very difficult to recover without an exact re-summation, and discuss several toy models which illustrate this. Finally, we consider the consequences for the information paradox.
description: 18 + 8 pages, 5 figures. v2: reference added
Índice de desenvolvimento rural dos municípios paranaenses: determinantes e hierarquização
Creators: name: Melo, Carmen Ozana De
name: Parré, José Luiz
name: Melo, Carmen Ozana De
name: Parré, José Luiz
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: rural development
subject: multivariate statistics
subject: Paraná.

description: The introduction of the productivity gains model in the Brazi-lian agriculture has caused important changes in the rural environment, affecting its development. The agricultural sector in Paraná is part of this process and in this state, also, there have been significant shifts in the structure of production, which have had an indirect influence both economically and socially in the countryside. This essay, therefore, aims to measure the rural development rate in the cities of Paraná and iden-tify the determining factors. The results have shown that, in a scale of 0 to 100, the average rural development rate is 43,63. 179 cities (44,86%) present rates above the mark mentioned and 220 (55,41%) are under this mark. By organizing the cities according to the development degree it was evident that more than half of the cities in the state have had low, very low or extremely low levels of rural development, a situation that calls for actions that aim to minimize the effects of the aspects which must be intensely worked on in order to improve life in the country and as a consequence, life in the city.
Search for Excited and Exotic Electrons in the e-gamma Decay Channel in p-pbar Collisions at sqrt(s) = 1.96 TeV
Creators: name: Acosta, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a search for excited and exotic electrons (e*) decaying to an electron and a photon, both with high transverse momentum. We use 202/pb of data collected in p-pbar collisions at sqrt(s) = 1.96 TeV with the CDF II detector. No signal above Standard Model expectation is seen for associated ee* production. We discuss the e* sensitivity in the parameter space of the excited electron mass M(e*) and the compositeness energy scale Lambda. In the contact interaction model, we exclude 132 < M(e*) < 879 GeV/c^2 for Lambda = M(e*) at 95% confidence level (C.L.). In the gauge-mediated model, we exclude 126 < M(e*) < 430 GeV/c^2 at 95% C.L. for the phenomenological coupling f/Lambda ~ 0.01/GeV.
description: 4 figures
Condições de crédito no Brasil rural
Creators: name: Assunção, Juliano
name: Chein, Flávia
name: Assunção, Juliano
name: Chein, Flávia
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: rural development
subject: credit rationing
subject: education.

description: This paper presents the families’ credit conditions in rural areas in Brazil. We perform the analysis in two steps. First, we follow an indirect approach, where the credit rationing is associated to the wealth importance in the families’ decisions, using micro data from Demogra-phic Census of 1991 and 2000. The second stage is based on information about formal credit. The results point out to: (i) strong evidences of credit rationing; (ii) an unequal regional distribution of this credit ratio-ning; e (iii) no direct relationship between the families’ credit conditions and the total availability of formal credit.
Qualidade do emprego na agricultura brasileira no período 2001-2004 e suas diferenciações por culturas
Creators: name: Balsadi, Otavio Valentim
name: Balsadi, Otavio Valentim
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: agriculture
subject: employment
subject: Brazil.

description: Based on the Nacional Households Survey (PNAD), this paper analyzed the employment quality in the Brazilian agriculture and six main crops (rice, coffee, sugarcane, manioc, corn and soybean) in the 2001-2004 period. An Employment Quality Index (EQI) was created for this analysis, based on four dimensions: level of education; degree of job formalization; main job income; and employee benefits. The EQI was calculated for the permanent and temporary workers, considering the local of the households (urban and rural).
The neutral gas in the environs of the Geminga gamma-ray pulsar
Creators: name: Giacani, E.
name: Reynoso, E.
name: Dubner, G.
name: Goss, W. M.
name: Green, A.
name: Johnston, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a high-resolution (24 arcsec) study of the HI interstellar gas distribution around the radio-quiet neutron star Geminga. Based on Very Large Array (VLA) and MPIfR Effelsberg telescope data, we analyzed a 40' x 40' field around Geminga. These observations have revealed the presence of a neutral gas shell, 0.4 pc in radius, with an associated HI mass of 0.8 Msun, which surrounds Geminga at a radial velocity compatible with the kinematical distance of the neutron star. In addition, morphological agreement is observed between the internal face of the HI shell and the brightest structure of Geminga's tail observed in X-rays.We explore the possibility that this morphological agreement is the result of a physical association.
description: One tarfile including a Latex file (7 pages) and two figures. Paper accepted for publication in Advances in Space Research; typos corrected; changes in section Results and Discussion after referee's suggestions. S. Johnston's affilation corrected
Thermodynamic and noise considerations for the detection of microscopic particles in a gas by Photoacoustic Raman spectroscopy
Creators: name: Das, Kunal K.
name: Rostovtsev, Yuri V.
name: Lehmann, Kevin
name: Scully, Marlan O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We develop a simple thermodynamic model to describe the heat transfer mechanisms and generation of acoustic waves in photoacoustic Raman spectroscopy by small particulate suspensions in a gas. Using Langevin methods to describe the thermal noise we study the signal and noise properties, and from the noise equivalent power we determine the minimum number density of the suspended particles that can be detected. We find that for some relevant cases, as few as 100 particles per cubic meter can be detected.
description: 7 pages, 2 figures
Amritodus atkinsoni
Creators: name: Xue, Qingquan
name: Zhang, Yalin
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Amritodus
Amritodus atkinsoni

description: AMRITODUS ATKINSONI (LETHIERRY, 1889)
(FIGS 3, 12)
description: Published as part of Xue, Qingquan & Zhang, Yalin, 2020, Phylogeny and revision of the Oriental leafhopper genus Amritodus (Hemiptera: Cicadellidae: Idiocerini), pp. 1438-1463 in Zoological Journal of the Linnean Society 189 on page 1445
Electrically Thick Fabry-Pérot Omega Bianisotropic Metasurfaces as Virtual Anti-Reflective Coatings and Non-Local Field Transformers
Creators: name: Marcus, Sherman W.
name: Epstein, Ariel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Omega bianisotropic metasurfaces (OBMS) provide wave-control capabilities not previously available with Huygens' metasurfaces (HMS). These enhanced capabilities derive from the additional degree of freedom provided by OBMS, and are based on analyses of zero-thickness surfaces with abstract surface impedance properties. However, the design of practical metasurfaces has proven tedious. Herein, we propose a novel, easily designed structure to realize OBMSs. Extending our previous work, we show that an asymmetrical cascade of two judiciously engineered Fabry-Perot (FP) etalons could form an OBMS meta-atom to provide desired wave control capabilities. Implementing this FP-OBMS for anomalous refraction, we show that bianisotropy effectively produces a virtual anti-reflective coating over a HMS, leading to the OBMS efficiency enhancement. This intriguing observation, backed by an approximate closed-form solution, provides an original physical interpretation of the mechanism underlying perfect anomalous refraction, and is used to explain for the first time differences in the angular response of OBMS in comparison to HMS. Implementing the FP-OBMS for the more intricate functionality of beam-splitting, we show that the FP-OBMS are capable of non-local excitation of surface waves required to this end, despite being electrically thick. These results, verified via full-wave computations, demonstrate the ability of the proposed configuration to meticulously reproduce the scattering properties of ideal (abstract) zero-thickness OBMS, thereby paving the path to practical realization of wave transmission with exotic functionalities, some of which have never before been associated with a physical structure.
description: 16 pages, 11 figures
Correlated Quantum Memory: Manipulating Atomic Entanglement via Electromagnetically Induced Transparency
Creators: name: Jing, H.
name: Liu, X. -J.
name: Ge, M. -L.
name: Zhan, M. -S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a feasible scheme of quantum state storage and manipulation via electromagnetically induced transparency (EIT) in flexibly $united$ multi-ensembles of three-level atoms. For different atomic array configurations, one can properly steer the signal and the control lights to generate different forms of atomic entanglement within the framework of linear optics. These results shed new light on designing the versatile quantum memory devices by using, e.g., an atomic grid.
description: 5 pages, 1 figure
Additional file 1 of Mortality in sepsis and septic shock in Europe, North America and Australia between 2009 and 2019— results from a systematic review and meta-analysis
Creators: name: Bauer, Michael
name: Gerlach, Herwig
name: Vogelmann, Tobias
name: Preissing, Franziska
name: Stiefel, Julia
name: Adam, Daniel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Systematic Review – Search Term. Table S1. Search Term/Filter. Table S2. Search Term/Filter (PubMed hits for each part of the Search Term). Presentation of Search Term and hits on PubMed for each part of the Search term.
A agroindústria canavieira do Paraná pós-desregulamentação: uma abordagem neoschumpeteriana
Creators: name: Rissardi Júnior, Darcy Jacob
name: Shikida, Pery Francisco Assis
name: Rissardi Júnior, Darcy Jacob
name: Shikida, Pery Francisco Assis
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: sugar cane agroindustry
subject: neoschumpeterian approach
subject: innovation
subject: technology
subject: Paraná.

description: The study has as aim to analyse the main conditions of the evolution of the Paraná State sugar cane agroindustry after the sectorial deregulation, according to the neoschumpeterian instrument. It must be emphasized the fact that the Paraná State companies which compose the sugar cane agro-industrial sector to be inserted, since the sectorial deregulation occured in 1990, in the effective technological paradigm in the sector, where it is necessary to be alert to the important attributes for the biggest sectorial competitiveness, such as: bigger verification of costs; introduction of innovation in products and processes; and acquisition and construction of abilities and skills in the development of productive, technological and organization qualifications. As co-rollary, the reasonable capacity of adaptation to the conditions of free competition in the Paraná State sugar cane agroindustries in the period of 1990 to 2005, investing in technological innovations of products and processes can be stood out. There was, in this way, a technologi-cal heterogeneity, where some move away because of the adoption of offensive technological strategies. Other excellent results, in percentile distribution, of the searched companies answers were: the great impact caused by the occured technological innovations in the agricultural area and learning-by-interacting as a type of predominant learning in the Paraná State sugar cane agroindustry.
Additional file 2 of Mortality in sepsis and septic shock in Europe, North America and Australia between 2009 and 2019— results from a systematic review and meta-analysis
Creators: name: Bauer, Michael
name: Gerlach, Herwig
name: Vogelmann, Tobias
name: Preissing, Franziska
name: Stiefel, Julia
name: Adam, Daniel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Reference list. List of references included in the meta-analysis.
Intermittent AGN episodes drive outflows with a large spread of observable loading factors
Creators: name: Zubovas, Kastytis
name: Nardini, Emanuele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The properties of large-scale galactic outflows, such as their kinetic energy and momentum rates, correlate with the luminosity of the active galactic nucleus (AGN). This is well explained by the wind-driven outflow model, where a fraction of the AGN luminosity drives the outflow. However, significant departures from these correlations have been observed in a number of galaxies. This may happen because AGN luminosity varies on a much shorter timescale ($\sim 10^4-10^5$~yr) than outflow properties do ($\sim 10^6$~yr). We investigate the effect of AGN luminosity variations on outflow properties using 1D numerical simulations. This effect can explain the very weak outflow in PDS 456: if its nucleus is currently much brighter than the long-term average luminosity, the outflow has not had time to react to this luminosity change. Conversely, the outflow in Mrk 231 is consistent with being driven by an almost continuous AGN, while IRAS F11119+3257 represents an intermediate case between the two. Considering a population of AGN, we find that very low momentum loading factors $\dot{p}_{\rm out} < L_{\rm AGN}/c$ should be seen in a significant fraction of objects - up to $15\%$ depending on the properties of AGN variability and galaxy gas fraction. The predicted distribution of loading factors is consistent with the available observational data. We discuss how this model might help constrain the duty cycles of AGN during the period of outflow inflation, implications for multiphase and spatially distinct outflows, and suggest ways of improving AGN prescriptions in numerical simulations.
description: 15 pages, 7 figures; accepted for publication in MNRAS
Electromagnetic Meson Production in the Nucleon Resonance Region
Creators: name: Burkert, V. D.
name: Lee, T. -S. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent experimental and theoretical advances in investigating electromagnetic meson production reactions in the nucleon resonance region are reviewed.
description: 75 pages, 42 figures
Parametric excitation of a Bose-Einstein condensate in a 1D optical lattice
Creators: name: Kraemer, M.
name: Tozzo, C.
name: Dalfovo, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the response of a Bose-Einstein condensate to a periodic modulation of the depth of an optical lattice. Using Gross-Pitaevskii theory, we show that a modulation at frequency Omega drives the parametric excitation of Bogoliubov modes with frequency Omega/2. The ensuing nonlinear dynamics leads to a rapid broadening of the momentum distribution and a consequent large increase of the condensate size after free expansion. We show that this process does not require the presence of a large condensate depletion. Our results reproduce the main features of the spectrum measured in the superfluid phase by Stoeferle et al., Phys. Rev. Lett. 92, 130403 (2004).
description: 4 pages, 4 figures, more results added, to appear in PRA Rapid Communications
Idiocerus atkinsoni Lethierry 1889
Creators: name: Xue, Qingquan
name: Zhang, Yalin
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Idiocerus
Idiocerus atkinsoni

description: Idiocerus atkinsoni Lethierry, 1889: 252.
Amritodus atkinsoni (Lethierry) – Anufriev, 1970: 376, figs 1–7. – Viraktamath, 1997: 113, figs 1–6, 28.
Diagnosis: Yellowish brown; pronotum, mesoscutum and scutellum with median brown stripe (Fig. 3A). Subgenital plate with dense, fine and long setae (Fig. 12A). Style apex curved dorsad, with dense, short and stout setae on dorsal surface (Fig. 12G). Aedeagal shaft smooth; preatrium much longer than shaft; dorsal apodeme oval in ventral view (Fig. 12E–F).
Materials examined: Ten ♂ and ten ♀, India, Bhunga, 25 April 1967, coll. A. S. Sohi (USNM).
Distribution: Bangladesh, India, Myanmar and Pakistan.
Remarks: This species is similar to A. brevistylus in coloration and male genitalia, but can be distinguished from the latter by the aedeagus without process.
description: Published as part of Xue, Qingquan & Zhang, Yalin, 2020, Phylogeny and revision of the Oriental leafhopper genus Amritodus (Hemiptera: Cicadellidae: Idiocerini), pp. 1438-1463 in Zoological Journal of the Linnean Society 189 on page 1445
The role of pre-mRNA secondary structure in gene splicing in Saccharomyces cerevisiae
Creators: name: Rogic, Sanja
Publisher: name: University of British Columbia
Year: 2010

description: The process of gene splicing, which involves the excision of introns from a pre-mRNA and joining of exons into mature mRNA is one of the essential steps in protein production. Although this process has been extensively studied, it is still not clear how the splice sites are accurately identified and correctly paired across the intron. It is currently believed that identification is accomplished through base-pairing interactions between the splice sites and the spliceosomal snRNAs. However, the relatively conserved sequences at the splice sites are often indistinguishable from similar sequences that are not involved in splicing. This suggests that not only sequence but other features of pre-mRNA may play a role in splicing. A number of authors have studied the effects of pre-mRNA secondary structure on splicing, but these studies are usually limited to one or a small number of genes, and therefore the conclusions are usually gene-specific. This thesis aims to complement previous studies of the role of pre-mRNA secondary structure in splicing by performing a comprehensive computational study of structural characteristics of Saccharomyces cerevisiae introns and their possible role in pre-mRNA splicing. We identify long-range interactions in the secondary structures of all long introns that effectively shorten the distance between the donor site and the branchpoint sequence. The shortened distances are distributed similarly to the branchpoint distances in short yeast introns, which are presumed to be optimal for splicing, and very different from the corresponding distances in random and exonic sequences. We show that in the majority of cases, these stems are conserved among closely related yeast species. Furthermore, we formulate a model of structural requirements for efficient splicing of yeast introns that explains previous splicing studies of the RP51B intron. We also test our model by laboratory experiments, which verify our computational predictions. Finally, we use different computational approaches to identify any structural context at the boundaries or within yeast introns. Our study reveals statistically significant biases, which we use to train machine learning classifiers to distinguish between real and pseudo splice sites.
Interactions between Zwitterionic Membranes in Complex Electrolytes
Creators: name: Buyukdagli, Sahin
name: Podgornik, Rudolf
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the electrostatic interactions of zwitterionic membranes immersed in mixed electrolytes composed of mono- and multivalent ions. We show that the presence of monovalent salt is a necessary condition for the existence of a finite electrostatic force on the membrane. As a result, the mean-field membrane pressure originating from the surface dipoles exhibits a non-uniform salt dependence, characterized by an enhancement for dilute salt conditions and a decrease at intermediate salt concentrations. Upon addition of multivalent cations to the submolar salt solution, the separate interactions of these cations with the opposite charges of the surface dipoles makes the intermembrane pressure more repulsive at low membrane separation distances and strongly attractive at intermediate distances, resulting in a discontinuous like-charge binding transition followed by the membrane binding transition. By extending our formalism to account for correlation corrections associated with large salt concentrations, we show that membranes of high surface dipole density immersed in molar salt solutions may undergo a membrane binding transition even without the multivalent cations. Hence, the tuning of the surface polarization forces by membrane engineering can be an efficient way to adjust the equilibrium configuration of dipolar membranes in concentrated salt solutions.
Substituição de fatores produtivos na produção de soja no Brasil
Creators: name: Conte, Luciane
name: Ferreira Filho, Joaquim Bento De Souza
name: Conte, Luciane
name: Ferreira Filho, Joaquim Bento De Souza
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: cost function
subject: elasticity of substitution
subject: soybean
subject: factor ma-rkets
subject: duality.

description: This paper analyzes the substitution relations between the main inputs used in soybean production in Brazil, through the esti-mates of Allen and Morishima substitution elasticities. The theoretical approach used is the production/cost duality. The data was obtained from field research in the five main production states in the country. Chemicals, capital, land, labor and other costs were the variables under study. The estimated cross-price elasticities pointed to complementa-ry relations between labor and capital. The Allen partial substitution elasticities showed substitution between most of the production factors, but a strong complementarity relation was found between capital and labor. In the Morishima elasticity of substitution concept capital and la-bor were found to be complements when the price of capital varies and substitutes when the price of labor varies.
Local Motion Planner for Autonomous Navigation in Vineyards with a RGB-D Camera-Based Algorithm and Deep Learning Synergy
Creators: name: Aghi, Diego
name: Mazzia, Vittorio
name: Chiaberge, Marcello
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: With the advent of agriculture 3.0 and 4.0, researchers are increasingly focusing on the development of innovative smart farming and precision agriculture technologies by introducing automation and robotics into the agricultural processes. Autonomous agricultural field machines have been gaining significant attention from farmers and industries to reduce costs, human workload, and required resources. Nevertheless, achieving sufficient autonomous navigation capabilities requires the simultaneous cooperation of different processes; localization, mapping, and path planning are just some of the steps that aim at providing to the machine the right set of skills to operate in semi-structured and unstructured environments. In this context, this study presents a low-cost local motion planner for autonomous navigation in vineyards based only on an RGB-D camera, low range hardware, and a dual layer control algorithm. The first algorithm exploits the disparity map and its depth representation to generate a proportional control for the robotic platform. Concurrently, a second back-up algorithm, based on representations learning and resilient to illumination variations, can take control of the machine in case of a momentaneous failure of the first block. Moreover, due to the double nature of the system, after initial training of the deep learning model with an initial dataset, the strict synergy between the two algorithms opens the possibility of exploiting new automatically labeled data, coming from the field, to extend the existing model knowledge. The machine learning algorithm has been trained and tested, using transfer learning, with acquired images during different field surveys in the North region of Italy and then optimized for on-device inference with model pruning and quantization. Finally, the overall system has been validated with a customized robot platform in the relevant environment.
Angular displacements estimation enhanced by squeezing and parametric amplification
Creators: name: Jiao, Gao-Feng
name: Wang, Qiang
name: Chen, L. Q.
name: Zhang, Weiping
name: Yuan, Chun-Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically study the angular displacements estimation based on a modified Mach-Zehnder interferometer (MZI), in which two optical parametric amplifiers (PAs) are introduced into two arms of the standard MZI, respectively. The employment of PAs can both squeeze the shot noise and amplify the photon number inside the interferometer. When the unknown angular displacements are introduced to both arms, we derive the multiparameter quantum Cramér-Rao bound (QCRB) using the quantum Fisher information matrix approach, and the bound of angular displacements difference between the two arms is compared with the sensitivity of angular displacement using the intensity detection. On the other hand, in the case where the unknown angular displacement is in only one arm, we give the sensitivity of angular displacement using the method of homodyne detection. It can surpass the standard quantum limit (SQL) and approach the single parameter QCRB. Finally, the effect of photon losses on sensitivity is discussed.
Anharmonic effects on a phonon number measurement of a quantum mesoscopic mechanical oscillator
Creators: name: Santamore, D. H.
name: Goan, Hsi-Sheng
name: Milburn, G. J.
name: Roukes, M. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We generalize a proposal for detecting single phonon transitions in a single nanoelectromechanical system (NEMS) to include the intrinsic anharmonicity of each mechanical oscillator. In this scheme two NEMS oscillators are coupled via a term quadratic in the amplitude of oscillation for each oscillator. One NEMS oscillator is driven and strongly damped and becomes a transducer for phonon number in the other measured oscillator. We derive the conditions for this measurement scheme to be quantum limited and find a condition on the size of the anharmonicity. We also derive the relation between the phase diffusion back-action noise due to number measurement and the localization time for the measured system to enter a phonon number eigenstate. We relate both these time scales to the strength of the measured signal, which is an induced current proportional to the position of the readout oscillator.
description: 13 pages, 2 figures