cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The mathematical works of Bernard Bolzano published between 1804 and 1817
Creators: name: Russ, Stephen Bruce
Publisher: name: The Open University
Year: 1981

description: The purpose of the thesis is to assess the mathematical achievements of Bernard Bolzano on the basis of the five early published works. The material is divided into the areas of the foundations of mathematics, geometry and analysis. In making this assessment there have been two principal considerations. Firstly, any judgement of the significance of Bolzano's work should be made in the light of the historical context, so considerable space is devoted to the relevant 18th century sources. Secondly, as a general framework to the thesis there is the question of how Bolzano's general views about mathematical proofs and concepts are related to his achievements. The main claim and conclusion of the thesis is that this relationship was unusually clear and significant in the case of Bolzano's work. There is an Appendix containing the first English translation of all five of Bolzano's works as well as the German texts of their first editions.
Tradurre film mistilingui nella didattica universitaria di lingua tedesca
Creators: name: Cinato, Lucia
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2021

description: Translating Multilingual Films in German-language University Teaching. Two case studies. This paper will examine some translation proposals for German-language films with mixed linguistic repertoires characterized by intra-linguistic variations of both diatopic and diastratic types and by the coexistence of several linguistic codes. These proposals, based on two case studies which were analysed during a workshop of the Master’s degree course in Translation at the University of Turin, are intended to explore the possibility of preserving more language varieties in audiovisual translation and to encourage the reflection on the strategies of translation of mixed-language films in both teaching and professional fields.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 8 N. 16 (2021)
Metoprolol and cardiac carnitine palmitoyltransferase-1 : unravelling a complex interaction in normal and diabetic hearts
Creators: name: Sharma, Vijay
Publisher: name: University of British Columbia
Year: 2011

description: Diabetic cardiomyopathy may be initiated or compounded by the heavy reliance of the heart on fatty acids and ketones as metabolic fuels. β-blockers have been proposed to inhibit fatty acid oxidation by decreasing the activity of the enzyme carnitine palmitoyltransferase-1 (CPT-1). By inhibiting fatty acid oxidation, β-blockers could improve myocardial efficiency and ameliorate the cytoplasmic accumulation of toxic fatty acid and glucose intermediates. In this study, we investigated whether metoprolol improves cardiac function and inhibits fatty acid oxidation in the streptozotocin (STZ) diabetic rat, a model of poorly controlled type 1 diabetes. The animals were injected with 60 mg/kg STZ and were euthanized six weeks following the induction of diabetes. We investigated the effects of chronic metoprolol treatment (75 mg/kg/day), and acute metoprolol perfusion on cardiac function, substrate utilization and three major systems of CPT-1 regulation: malonyl CoA levels, CPT-1 transcription and covalent modifications (phosphorylation, nitrosylation, glutathiolation, nitration). Chronic metoprolol treatment improved cardiac function in the diabetic heart. Whereas, chronic metoprolol treatment increased fatty acid oxidation in control hearts but decreased it in diabetic hearts, acute metoprolol perfusion always inhibited fatty acid oxidation. Metoprolol lowered malonyl CoA levels in control hearts, and both acute metoprolol perfusion and chronic metoprolol treatment led to decreased CPT-1 maximum activity and decreased CPT-1 malonyl CoA sensitivity. CPT-1 sensitivity was increased by calcium/calmodulin-dependent protein kinase phosphorylation and decreased by protein kinase A-dependent phosphorylation in vitro. CPT-1 activity was inhibited by nitrosylation and glutathiolation, and stimulated by nitration in vitro. Chronic metoprolol treatment decreased the binding and coactivation of peroxisome-proliferator receptor-γ coactivator 1-α (PGC-1α) and peroxisome-proliferator receptor-α (PPAR-α), and also increased the binding of the repressor protein upstream stimulatory factor-2 (USF-2). In conclusion, metoprolol inhibited fatty acid oxidation, and acted partly by regulating malonyl CoA levels and partly by modulating the activity and malonyl CoA sensitivity of CPT-1 itself. The effects of metoprolol on CPT-1 were mediated acutely by covalent modifications and chronically by inhibition of the transcriptional complex that induces CPT-1 expression.
The mass function dependence on the dynamical state of dark matter haloes
Creators: name: Seppi, R.
name: Comparat, J.
name: Nandra, K.
name: Bulbul, E.
name: Prada, F.
name: Klypin, A.
name: Merloni, A.
name: Predehl, P.
name: Chitham, J. Ider
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy clusters are luminous tracers of the most massive dark matter haloes in the Universe. To use them as a cosmological probe, a detailed description of the properties of dark matter haloes is required. We characterize how the dynamical state of haloes impacts the halo mass function at the high-mass end. We used the dark matter-only MultiDark suite of simulations and the high-mass objects M > 2.7e13 M/h therein. We measured mean relations of concentration, offset, and spin as a function of halo mass and redshift. We investigated the distributions around the mean relations. We measured the halo mass function as a function of offset, spin, and redshift. We formulated a generalized mass function framework that accounts for the dynamical state of the dark matter haloes. We confirm the discovery of the concentration upturn at high masses and provide a model that predicts the concentration for different values of mass and redshift with one single equation. We model the distributions around the mean concentration, offset, and spin with modified Schechter functions. The concentration of low-mass haloes shows a faster redshift evolution compared to high-mass haloes, especially in the high-concentration regime. The offset parameter is smaller at low redshift, in agreement with the relaxation of structures at recent times. The peak of its distribution shifts by a factor of 1.5 from z = 1.4 to z = 0. The individual models are combined into a comprehensive mass function model, as a function of spin and offset. Our model recovers the fiducial mass function with 3% accuracy at redshift 0 and accounts for redshift evolution up to z = 1.5. This approach accounts for the dynamical state of the halo when measuring the halo mass function. It offers a connection with dynamical selection effects in galaxy cluster observations. This is key toward precision cosmology using cluster counts as a probe.
description: to be published in Astronomy&Astrophysics
Superisolated Surface Singularities
Creators: name: Bartolo, E. Artal
name: Luengo, I.
name: Melle-Hernandez, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32Sxx, 4B05, 14H20, 14J17

description: In this survey, we review part of the theory of superisolated surface singularities (SIS) and its applications including some new and recent developments. The class of SIS singularities is, in some sense, the simplest class of germs of normal surface singularities. Namely, their tangent cones are reduced curves and the geometry and topology of the SIS singularities can be deduced from them. Thus this class \emph{contains}, in a canonical way, all the complex projective plane curve theory, which gives a series of nice examples and counterexamples. They were introduced by I. Luengo to show the non-smoothness of the $μ$-constant stratum and have been used to answer negatively some other interesting open questions. We review them and the new results on normal surface singularities whose link are rational homology spheres. We also discuss some positive results which have been proved for SIS singularities.
description: Survey article for the Proceedings of the Conference "Singularities and Computer Algebra" on Occasion of Gert-Martin Greuel's 60th Birthday, LMS Lecture Notes (to appear)
« Signes d’un monde libre » – Les objets occidentaux dans les romans roumains d’après 1989 sur l’enfance et l’adolescence communistes
Creators: name: Divile, Cosmin
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2021

description: Abstract: One of the recurring themes in post-communist Romanian literature (whether fictional or not) concerns the childhood and adolescence experienced during the communist period. Romanian literary critics have formulated a whole series of hypotheses related to the frequency of this theme, signaling, on the one hand, the change of paradigm in the construction of the child-character in Romanian literature (Mihalache) and, on the other hand, the contribution of these stories to the cultural memory of Romanian communism (Mironescu, Simuț). In the wake of both hypotheses, our study offers a new critical perspective, focusing on novels written after 1989, that deal with childhood/ adolescence during communism. The protagonists ’interactions with Western cultural objects/ products represent the semiotic trail that allows us to shed light on specific processes concerning the formation of subjects’ identity. Through Western consumer products, the protagonists create a dichotomous representation of the world (here vs. beyond), they receive explanations in their own ‘language’ about the world in which they live (both children and adolescents cannot internalize the implications of the totalitarian regime, although they can discern the difference between the taste of Quik Cola and that of Coca-Cola). However, they use it to better articulate their aspirations, built on models from the Western music or film industry.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 8 N. 16 (2021)
Zmienność cen mięsa kurcząt brojlerów w krajach Unii Europejskiej w latach 2007-2016
Variability of Broiler Chicken Prices in European Union Countries in the Period 2007-2016
Creators: name: Utnik-Banaś, Katarzyna
name: Utnik-Banaś, Katarzyna
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: International Relations/Trade
subject: Livestock Production/Industries
subject: broiler chickens
subject: seasonal fluctuations
subject: price variability
subject: kurczęta brojlery
subject: wahania sezonowe
subject: zmienność cen

description: The article presents analysis of price variability of broiler chicken meat in EU countries in period 2007-2016. Descriptive statistics were calculated and decomposition of time series of prices were performed. The production of meat broiler chicken in EU in year 2007 amounted 8, 76 million ton and increased to the level of 10,98 million ton in year 2014. The biggest producers in year 2014 were: Poland (14,9%), Great Britain (13,1%), Spain (11,2%), France (10,0%) and Germany (9,4%). The highest prices were in: Germany, Finland, Cyprus and the lowest in: Poland, Great Britain and Bulgaria. Variability of prices was higher in countries with lower level of prices while in countries where prices were higher, they were also more stable. Prices of broiler chickens in EU are distinguished by seasonality. Higher prices are in summer and lower in late autumn and winter. Countries with highest seasonal changes are as follows: Poland (20% in average), Portugal (15%), Belgium (11%) and Great Britain (10%). / Synopsis. Celem pracy była analiza zmienności cen mięsa kurcząt brojlerów w krajach UE w latach 2007-2016. Określono odpowiednie statystyki opisowe oraz przeprowadzono dekompozycję szeregu czasowego cen. Wielkość produkcji mięsa kurcząt brojlerów w UE w 2007 roku wynosiła 8,76 mln ton i w wzrosła do poziomu 10,98 mln ton w 2014 r. Największymi producentami w UE w 2014 roku były: Polska (14,9% udziału w produkcji kurcząt brojlerów w UE), Wielka Brytania (13,1%), Hiszpania (11,2%), Francja (10,0%) oraz Niemcy (9,4%). Najwyższe ceny występowały w Niemczech, Finlandii i na Cyprze, a najniższe w Polsce, Wielkiej Brytanii i Bułgarii. Większe zróżnicowanie cen występowało w krajach, gdzie poziom cen był niższy, zaś w krajach o wysokim poziomie cen - ceny odznaczały się większą stabilnością. Ceny mięsa kurcząt brojlerów w UE cechuje sezonowość. Wyższe są latem, a niższe - późną jesienią i zimą. Kraje o największych amplitudach zmian sezonowych to: Polska (średnio 20%), Portugalia (15%), Belgia (11%) i Wielka Brytania (10%).
description: eISN 2544-0659
Improving meson two-point functions in lattice QCD
Creators: name: DeGrand, Thomas
name: Schaefer, Stefan
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We describe and test a method to compute Euclidean meson two-point functions in lattice QCD. The contribution from the low-lying eigenmodes of the Dirac operator is averaged over all positions of the quark sources. The contribution from the higher modes is estimated in the traditional way with one or a few source points per lattice. In some channels, we observe a significant improvement in the two-point functions for small quark masses.
description: 10 pages, 7 figures
Approximate density matrix functionals applied to hetero-atomic bond dissociation
Creators: name: van Meer, Robert
name: Chai, Jeng-Da
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A two-orbital two-electron diatomic model resembling LiH is used to investigate the differences between the exact Löwdin-Shull and approximate Hartree-Fock-Bogoliubov and Baerends-Buijse density matrix functionals in the medium- to long-distance dissociation region. In case of homolytic dissociation (one electron on each atom), the approximate functionals fail to generate the correct energy due to a compromise between the Hartree-Fock component (which favors partial charge transfer) and the strong correlation component (which hampers charge transfer). The exact functional is able to generate the physically correct answer by enforcing the equi-charge distribution of the bonding and antibonding orbitals. Besides, the approximate functionals also have issues in correctly describing heterolytic dissociation (two electrons on one atom) due to the strong correlation component hampering charge transfer. In this work, we propose a new scheme in which the homolytic dissociation problem for approximate functionals is avoided by adding a Lagrange multiplier that enforces equi-charge distribution of the bonding and antibonding orbitals. The symmety based nature of the findings implies that they are most likely transferable to other cases in which one uses an approximate one-particle method in conjunction with a symmetrical particle-hole correction factor.
Eryphanis aesacus
Creators: name: Penz, Carla M.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Eryphanis
Eryphanis aesacus

description: Eryphanis aesacus (Herrich-Schäffer, 1850)   (Fig. 1E, 2E, 4E, 5E, 6E)
 Type locality. Mexico.
 Diagnosis. Males similar to E. bubocula, but distinguished from this species by the smaller size, the reduced dorsal iridescent patch of the FW, and by the HW iridescent patch that extends toward the medial area around the anterior edge of the black androconial patch. Males have square-shaped gnathos, narrower valva in ventral view, and constricted tegumen in dorsal view. Females easily distinguished from E. bubocula by their smaller size, well defined dorsal purple iridescent patches on FW and HD, and sterigma with a narrower posterior ridge and smaller midline keel.
 Annotated redescription. Male. FW length 47-50 mm (n=4). Dorsal FW and HW with conspicuous and localized mid-night blue to purple iridescent patches. Iridescent patch extends from medial to postmedial areas of the FW, occupying the distal one-third of the FW discal cell. HW iridescent patch extends around the anterior edge of the black androconial patch toward the medial area, and also along the wing margin. Dorsal FW submarginal line usually faint (but can be well defined in some specimens), diffuse, continuous. HW edge rounded with a vestigial marginal outline dorsally. Dorsal HW with a large broad patch of black androconial scales above tornus. Androconial patch generally occupying a smaller space inside cell M2 than E. bubocula. Ventral FW and HW main color light brown. Ventral HW with a welldeveloped white postmedial transverse band. HW ventral eyespot in cell Cu1 large, expanding to cell Cu2. Uncus elongate and slender, valva narrow, gnathos square-shaped.
 Female. FW length 53-58 mm (n=5). Dorsal FW and HW with conspicuous and localized purple iridescent patches extended across discal cell of the FW and between submedial and medial areas of the HW. Dorsal FW orange submarginal line well developed, continuous. Submarginal and postmedial branches of submarginal line start slightly above M1. Dorsal HW marginal outline diffuse. HW edge rounded and slightly undulated. Ventral FW and HW as in male. Sterigma with a narrow posterior ridge and narrow projections.
 Distribution. Mexico, Guatemala, and Nicaragua (Frühstorfer 1912), extended here to El Salvador (Appendix 1). Based on collection labels, this species seem to occur from 500- 1,800 m (Appendix 1).
 Remarks. In male specimens from Nicaragua and El Salvador the dorsal FW submarginal line is stronger than in Mexican specimens, but can still be considered ‘faded’ in comparison with males in the zolzivora-group where this band is well defined and vividly colored. I have not seen specimens from either Honduras or Nicaragua.
description: Published as part of Penz, Carla M., 2008, Phylogenetic Revision of Eryphanis Boisduval, with a Description of a New Species from Ecuador (Lepidoptera, Nymphalidae), pp. 1-25 in Insecta Mundi 2008 (35) on pages 11-12, DOI: 10.5281/zenodo.4532981
INCREASING FOOD CROP YIELDS BY MORE EFFICIENT USE OF FERTILIZERS
Creators: name: Samuels, George
name: Samuels, George
Publisher: name: Unknown
Year: 1981
Subjects: Crop Production/Industries
Farm Management

description: Â farmer spends from 15 to 75 percent of the eost of materials for his crop for fertilizers. Yet, because of poor praetiees and lack of knowledge, the farmer can reduce the effectiveness of the fertilizer he is using. It is the purpose of this paper to help the farmer improve his fertilizer use, so as to insure that he is reeeiving füll value for the money he invests. Proper application of fertilizer as related to quantity, time and method of placement can increase fertilizer efficiency. Soil factors such as texture, organic matter, pH, compaction, moisture and salinity can influence the amounts and effïciency of the applied fertilizer. Plant factors such as the crop, root system, disease and insect damage, plant density, weeds and rutrient balance can modify the fertilizer effïciency l.osses of fertilizer occur with improper storage,
Molecular Modelling and Dynamics Simulations of Sequestosome 1 (SQSTM1) Missense Mutations Linked to Paget Disease of Bone
Creators: name: Shaik, Noor A.
name: Khalidah K. Nasser
name: Muteb Al Ruwaili
name: Alallasi, Sami R.
name: Ramu Elango
name: Babajan Banganapalli
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: The Paget disease (PDB; OMIM is 167250) is a chronic bone disease caused by pathogenic mutations in Sequestome1/p62 (SQSTM1) gene. This study has aimed to interpret the relationship of PDB linked SQSTM1 mutations with protein structure and its molecular dynamic features. The disease causative missense mutations were initially collected, and then analyzed for their, exonic and domain distribution, impact on secondary and tertiary structures, and their ability on protein-ligand interactions, using a combination of systems biology approaches. Our results show that most PDB linked SQSTM1 missense mutations affect amino acid residues clustered within or near the UBA domain (aa 389–434), which participates in the ubiquitination of substrates. We also report that the majority mutations occurred in α-helices over β-strands but their effects on the secondary structure were mostly neutral. Global tertiary structure deviations were minimal; however, at amino acid residue level minor structural changes were evident. The molecular dynamics simulation analysis showed that both PB1 and UBA domains were under constant structural fluctuations resulting in closed form conformation of SQSMT1 protein structure, when it is bound to PRKCI ligand. We also found salt bridge conformation changes in the UBA domain of SQSTM1 mutants when they bound to the PRKCI interactor protein. This finding suggests the possibility that mutations in SQSTM1 could impair its ability to ubiquitinate the substrates, eventually affecting autophagy and apoptosis, especially in mature osteoclasts. This study presents the additional insight into structure and function relationship between SQSTM1 mutations and PDB pathogenesis.
André STANGUENNEC, Novalis-Mallarmé. Une confrontation
Creators: name: Menzio, Pino
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2021

description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 8 N. 16 (2021)
Localization of Rung Pairs in Hard-core Bose-Hubbard Ladder
Creators: name: Li, Shang-Shu
name: Ge, Zi-Yong
name: Fan, Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulation in experiments of many-body systems may bring new phenomena which are not well studied theoretically. Motivated by a recent work of quantum simulation on a superconducting ladder circuit, we investigate the rung-pair localization of the Bose-Hubbard ladder model without quenched disorder. Our results show that, in the hard-core limit, there exists a rung-pair localization both at the edges and in the bulk. Using center-of-mass frame, the two-particle system can be mapped to an effective single-particle system with an approximate sub-lattice symmetry. Under the condition of hard-core limit, the effective system is forced to have a defect at the left edge leading to a zero-energy flat band, which is the origin of the rung-pair localization. We also study the multi-particle dynamics of the Bose-Hubbard ladder model, which is beyond the singleparticle picture. In this case, we find that the localization can still survive despite of the existence of interaction between the pairs. Moreover, the numerical results show that the entanglement entropy exhibits a long-time logarithmic growth and the saturated values satisfy a volume law. This phenomenon implies that the interaction plays an important role during the dynamics, although it cannot break the localization. Our results reveal another interesting type of disorder-free localization related to a zero-energy flat band, which is induced by on-site interaction and specific lattice symmetry.
description: 11 pages, 8 figures
EVALUACION PRELIMINAR DE CUATRO CULTIVARES DE PATILLA (Citrullus lanatus) EN LA ISLA DE MARGARITA, ESTADO NUEVA ESPARTA
Creators: name: Munoz, Jose Alfredo
name: Dugum, Nazario
name: Faneitte, Hanry
name: Munoz, Jose Alfredo
name: Dugum, Nazario
name: Faneitte, Hanry
Publisher: name: Unknown
Year: 1981
Subjects: Crop Production/Industries

description: Se muestran los resultados de una prueba comparativa de cuatro (4) cultivares de patilla bajo riego en la Isla de Margarita, Estado Nueva Esparta. Estadfsr ticamente no se detectaron diferencias significativas entre los cultivares eva luados; no obstante, los rendimienios en el campo revelan variaciones considérables entre ellos. Asi,, la variedad Blank Diamond supera ai resto de las variedades;' Jubilee','Congo'y'Charleston Grey en 5472,8536 y 15720 kilogrâmos mas. por hectârea, respectivamente. Asimismo, se observé que la'Blank Diamond'presenti un mejor comporteraiento frente a la anormalidad fisiologica conocida como "culillo" ο "tapa" a diferencia de las otras variedades evaluadas, las cuales mostraron, en mayor ο menor grado, susceptibilidad a la misma,
The transmission of Scandinavian literature in a European context.
Creators: name: Hodârnău, Ioana
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2021

description: The present study aims at analyzing the ways in which the Nordic literature and culture circulates in a European context in the first half of the 20th century. In this way, French language functions as lingua franca for translations from most of the foreign literatures, being the main ‘guarantor’ of the reception of marginal cultures and literatures. It is also the case for the Romanian cultural space, whereas Scandinavian literature attain visibility in Romania through French intermediate. Moreover, this acquisition of Nordic literature in the Romanian space in the 1920’s is accomplished in a unique way, through a network of private libraries. Our research paper tackles the reception of a corpus of thirteen literary texts from Danish, Norwegian and Swedish literature in Romania, a cultural path made possible due to the existence of a private library own by an interwar Romanian intellectual, Constantin Petrescu-Ercea. With PhD studies in law at Sorbonne University, Petrescu-Ercea represents one of the outstanding figures in the academic field in Transylvania, from interwar period until the establishment of communism in Romania. Given these research directions, the present study aims to be both a study in cultural history, but also an analysis of reading practices (following Michel de Certeau’s theory), a study that emphasizes the ways in which everyday life can be ‘read’ and understood.
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 8 N. 16 (2021)
Sue Atkins, Lexicographer and Linguist (1931-2021)
Creators: name: Moon, Rosamund
Publisher: name: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne
Year: 2021

description: In memoriam Sue Atkins (1931-2021)
description: RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne, V. 8 N. 16 (2021)
Quantum Surface-Response of Metals Revealed by Acoustic Graphene Plasmons
Creators: name: Gonçalves, P. A. D.
name: Christensen, Thomas
name: Peres, N. M. R.
name: Jauho, Antti-Pekka
name: Epstein, Itai
name: Koppens, Frank H. L.
name: Soljačić, Marin
name: Mortensen, N. Asger
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantitative understanding of the electromagnetic response of materials is essential for the precise engineering of maximal, versatile, and controllable light--matter interactions. Material surfaces, in particular, are prominent platforms for enhancing electromagnetic interactions and for tailoring chemical processes. However, at the deep nanoscale, the electromagnetic response of electron systems is significantly impacted by quantum surface-response at material interfaces, which is challenging to probe using standard optical techniques. Here, we show how ultra-confined acoustic graphene plasmons (AGPs) in graphene--dielectric--metal structures can be used to probe the quantum surface-response functions of nearby metals, here encoded through the so-called Feibelman $d$-parameters. Based on our theoretical formalism, we introduce a concrete proposal for experimentally inferring the low-frequency quantum response of metals from quantum shifts of the AGPs' dispersion, and demonstrate that the high field confinement of AGPs can resolve intrinsically quantum mechanical electronic length-scales with subnanometer resolution. Our findings reveal a promising scheme to probe the quantum response of metals, and further suggest the utilization of AGPs as plasmon rulers with ångström-scale accuracy.
description: 7 pages, 4 figures
title: The efficient collection and long term storage of solar energy in the UK, using air as the working fluid
Creators: name: Oreszczyn, Tadeusz
Publisher: name: The Open University
Year: 1985

description: This thesis describes the results of four years work on the design, construction, testing and evaluation of a high performance air heating collector designed to supply heat to a communal interseasonal store, which could heat many houses all the year round in the U.K. Interseasonal storage utilizing a pebble bed was investigated but shown to be costly both in terms of money and energy. The performance of medium to high temperature storage is shown to improve with high performance collectors. The level of insulation specified in the 1978 Building Regulations is found to be inadequate for solar heating with long and short term storage, because it is more economic to add more insulation than to install solar heating. While investigating the interseasonal storage of solar energy in pebble beds, data on the design and operation of air heating solar collectors was found lacking. Therefore the development and testing of both a high and low performance solar air heater was undertaken. The standard methods of testing collectors and in particular high performance collectors are shown not to provide an adequate method of comparing the daily efficiency of various types of collectors. Methods of testing air collectors are presented under transient conditions more representative of collector operation in the U.K. The parameters affecting high performance collectors are examined, in particular the reduction of heat loss between cover and absorber, and the effect on performance of diffuse and transient radiation. Results are also presented for testing a low cost plastic collector.
Applications of orbit equivalence to actions of discrete amenable groups
Creators: name: Rudolph, Daniel J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28D15, 37A35

description: Since the work of Ornstein and Weiss in 1987 (J. Analyse Math. 48 (1987)) it has been understood that the natural category for classical ergodic theory would be probability measure preserving actions of discrete amenable groups. A conclusion of this work is that all such actions on nonatomic Lebesgue probability spaces were orbit equivalent. From this foundation two broad developements have been built. First, a full generalization of the various equivalence theories, including Ornstein's isomorphism theorem itself, exists. Second, one can use the characterization of discrete amenable actions as those which are orbit equivalent to a action of \Z to lift theorems from actions of \Z to those of arbitrary amenable groups.
Eryphanis reevesii
Creators: name: Penz, Carla M.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Eryphanis
Eryphanis reevesii

description: Eryphanis reevesii (Doubleday, 1849)   (Fig. 1C, 2C, 4C, 5C, 6C)
description: Published as part of Penz, Carla M., 2008, Phylogenetic Revision of Eryphanis Boisduval, with a Description of a New Species from Ecuador (Lepidoptera, Nymphalidae), pp. 1-25 in Insecta Mundi 2008 (35) on page 13, DOI: 10.5281/zenodo.4532981
The Low Frequency Instrument in the ESA Planck mission
Creators: name: Mennella, A.
name: Bersanelli, M.
name: Cappellini, B.
name: Maino, D.
name: Platania, P.
name: Garavaglia, S.
name: Butler, R. C.
name: Pasian, N. Mandolesi F.
name: D'arcangelo, O.
name: Simonetto, A.
name: Sozzi, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Measurements of the cosmic microwave background (CMB) allow high precision observation of the cosmic plasma at redshift z~1100. After the success of the NASA satellite COBE, that in 1992 provided the first detection of the CMB anisotropy, results from many ground-based and balloon-borne experiments have showed a remarkable consistency between different results and provided quantitative estimates of fundamental cosmological properties. During the current year the team of the NASA WMAP satellite has released the first improved full-sky maps of the CMB since COBE, leading to a deeper insight in the origin and evolution of the Universe. The ESA satellite Planck, scheduled for launch in 2007, is designed to provide the ultimate measurement of the CMB temperature anisotropy over the full sky, with an accuracy that will be limited only by astrophysical foregrounds, and robust detection of polarisation anisotropy. Planck will observe the sky with two instruments over a wide spectral band (the Low Frequency Instrument, based on coherent radiometers, from 30 to 70 GHz and the High Frequency Instrument, based on bolometric detectors, from 100 to 857 GHz). The mission performances will improve dramatically the scientific return compared to WMAP. Furthermore the LFI radiometers (as well as some of the HFI bolometers) are intrinsically sensitive to polarisation so that by combining the data from different receivers it will be possible to measure accurately the E mode and to detect the B mode of the polarisation power spectrum. Planck sensitivity will offer also the possibility to detect the non-Gaussianities imprinted in the CMB.
description: 4 pages, 2 figures, to appear in "Proc of International Symposium on Plasmas in the Laboratory and in the Universe: new insights and new challenges", September 16-19, 2003, Como, Italy
Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles
Creators: name: Repellin, C.
name: Léonard, J.
name: Goldman, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Realizing strongly-correlated topological phases of ultracold gases is a central goal for ongoing experiments. And while fractional quantum Hall states could soon be implemented in small atomic ensembles, detecting their signatures in few-particle settings remains a fundamental challenge. In this work, we numerically analyze the center-of-mass Hall drift of a small ensemble of hardcore bosons, initially prepared in the ground state of the Harper-Hofstadter-Hubbard model in a box potential. By monitoring the Hall drift upon release, for a wide range of magnetic flux values, we identify an emergent Hall plateau compatible with a fractional Chern insulator state: the extracted Hall conductivity approaches a fractional value determined by the many-body Chern number, while the width of the plateau agrees with the spectral and topological properties of the prepared ground state. Besides, a direct application of Streda's formula indicates that such Hall plateaus can also be directly obtained from static density-profile measurements. Our calculations suggest that fractional Chern insulators can be detected in cold-atom experiments, using available detection methods.
description: 13 pages, 11 figures; extended version accepted for publication
Supplementary information from Countershading enhances camouflage by reducing prey contrast
Creators: name: Donohue, Callum G.
name: Hemmi, Jan M.
name: Kelley, Jennifer L.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Additional behavioural methods, full results table and supporting data
Quantum heat statistics with time-evolving matrix product operators
Creators: name: Popovic, Maria
name: Mitchison, Mark T.
name: Strathearn, Aidan
name: Lovett, Brendon W.
name: Goold, John
name: Eastham, Paul R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a numerically exact method to compute the full counting statistics of heat transfer in non-Markovian open quantum systems, which is based on the time-evolving matrix product operator (TEMPO) algorithm. This approach is applied to the paradigmatic spin-boson model in order to calculate the mean and fluctuations of the heat transferred to the environment during thermal equilibration. We show that system-reservoir correlations make a significant contribution to the heat statistics at low temperature and present a variational theory that quantitatively explains our numerical results. We also demonstrate a fluctuation-dissipation relation connecting the mean and variance of the heat distribution at high temperature. Our results reveal that system-bath interactions make a significant contribution to heat transfer even when the dynamics of the open system is effectively Markovian. The method presented here provides a flexible and general tool to predict the fluctuations of heat transfer in open quantum systems in non-perturbative regimes.
description: 15 pages, 11 figures
Observational constraints on the cosmological evolution of dual-population radio sources
Creators: name: Jamrozy, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we show normalized differential source counts n(S) at 408 MHz and 1.4 GHz of radio sources separately for FRI and FRII classes with extended and compact morphologies. The maps from the FIRST, NVSS, and WENSS surveys are used to define the source morphology and flux density. The counts provide a basis for a direct test as well as constraining the cosmological evolution of powerful extragalactic radio sources in terms of the dual-population model (Jackson & Wall 1999), where radio sources of Fanaroff-Riley (1974) types I and II are regarded as two physically separate types of active galactic nuclei (AGN). The predicted count values are compared with the observational data to find the best fits for the evolution and beaming parameters, and to further refine the model.
description: 9 pages, 4 figures, A&A in print
Histopathological measures in gills of Common carp, Cyprinus carpio (Linnaeus, 1875) after xenobiotics exposure
Creators: name: Petkova, Eleonora
Publisher: name: Zenodo
Year: 2021

description: We aimed to determine the negative effects of decreasing concentrations of chlorpyrifos (CPF) and cypermethrin (CYP) based on the EU legislation on common carp (Cyprinus carpio Linnaeus, 1758) in laboratory conditions. The fish were exposed to the pesticides for 96 hours and 30 days. Therefore, histological biomarkers in the gills, were investigated. After 96 hours, we found mainly intense proliferative changes and to a lesser extent - degenerative changes and changes in the circulatory system, such as necrosis and vasodilatation. Moreover, after 30 days exposure, we established more intense degenerative changes, as well as changes in the circulatory system along with the observed proliferation. Overall, both tested pesticides impacted the studied biomarkers in common carp, even at lower than the permissible concentrations set by law. However, the results on the analysis showed a relatively higher toxicity of CYP compared to CPF on the fish. To avoid danger or risk, a cautious application of these pesticides must be carried out, especially near water bodies.
Many-body level statistics of single-particle quantum chaos
Creators: name: Liao, Yunxiang
name: Vikram, Amit
name: Galitski, Victor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a non-interacting many-fermion system populating levels of a unitary random matrix ensemble (equivalent to the q=2 complex Sachdev-Ye-Kitaev model) - a generic model of single-particle quantum chaos. We study the corresponding many-particle level statistics by calculating the spectral form factor analytically using algebraic methods of random matrix theory, and match it with an exact numerical simulation. Despite the integrability of the theory, the many-body spectral rigidity is found to have a surprisingly rich landscape. In particular, we find a residual repulsion of distant many-body levels stemming from single-particle chaos, together with islands of level attraction. These results are encoded in an exponential ramp in the spectral form-factor, which we show to be a universal feature of non-ergodic many-fermion systems embedded in a chaotic medium.
description: Published version. 5+19 pages, 2+2 figures
CONTROL DE "Damping-Off" EN PLANTULAS DE TOMATE OBTENIDAS DE SEMILLAS PREGERMINADAS
Creators: name: Ohep, Juan C.
name: Bryan, H. H.
name: McMillan, R. T.
name: Cantliffe, D. J.
name: Ohep, Juan C.
name: Bryan, H. H.
name: McMillan, R. T.
name: Cantliffe, D. J.
Publisher: name: Unknown
Year: 1981
Subjects: Crop Production/Industries

description: El'método de siembra con semillas pregerminadas consiste en favorecer la germinacion. en condiciones apropiadas, incorporarlas a una gelatina inocua y lue go depositar la mezcla manual ο mecar.jcamente en el suelo, La gelatina puede servir como medio para anadir fungicidas que protejan a las plantulas del ata que de hongos del suelo. En el présente trabajo se estudio el efecto de varies fungicidas en la gelatina sobre el control de aphanidermatum en condiciones de invernadero. En una primera etapa se determino el nivel^maximo a anadir a la gelatina que no causara reduccion.en el desarrollo de las plantulas. En otra serie de experimentos se evaluä el efecto de esos niveles sobre el hongo. Un buen control de la enfermedad se obtuvo en todos los experimentos con Banrot solo ( 0,75 g ia/1 gel. ) y Dexon y Truban solos ( 0,5 g ia/1 gel.) <5 çombinados con Benlate, Demosan u Orthocide. Esto se observo por un aumento en la emergencia total y una reduccion.en el numéro de plantulas enfermas comparadas con un control sin fungicidas. Las pocas plantulas emergidas y el alto numéro de plantulas muertas indico que Benlate, Demosan y Ortho eide no controlaron el hongo.
Understandings into the process of modeling and simulation of a simple thermal house in a warm-humid environment
Creators: name: Canteros, Maria Laura
name: Levell, James
Publisher: name: figshare
Year: 2020
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences
subject: 90702 Environmental Engineering Modelling
subject: FOS: Environmental engineering
subject: 91599 Interdisciplinary Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: Nowadays, energy saving is considered a leitmotiv in both developed and underdeveloped countries. Thanks to the implementation of cutting-edge simulation and analytical software in the field of building performance, end users can now make decisions at the moment of acquiring technologies that provide energy and cost savings. Therefore, it is necessary to provide a critical
review of current global software, with the aim of facilitating an understanding of these applications for those interested in assessing building performance. In this report, the procedure for the elaboration of a simple model thermal house, improved from previous studies in a warmhumid zone, is presented. It comprises thermal software modelling, simulation and data acquisition, as well as the elaboration of a program in Julia that aims to obtain similar results to
the thermal model for future research optimization purposes. Additionally, alternatives and
recommendations based on this project, as well as the authors’ experiences and backgrounds,
are exhaustively explained. The study leads to the conclusion that the analyzed software behaved
as expected concerning the thermal model. Especially the freely available software energy plus
is extremely powerful. However, a considerable amount of previous review was necessary. For
the Julia code, it is expected to being improved in a future to give more accurate and realistic
results. In conclusion, for a deeper dive into the topic of modeling and behavior of buildings it is
necessary a wide range of knowledge in an appreciable quantity of software.
Eryphanis gerhardi
Creators: name: Penz, Carla M.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Eryphanis
Eryphanis gerhardi

description: Eryphanis gerhardi (Weeks, 1902)   (Fig. 1F, 2F, 4F, 5F, 6F)
 Type locality. Bolivia.
 Diagnosis. Males with deep purple iridescent sheen dorsally on FW and HW, plus a distinctive ventral caramel to orange coloration and white spot at crossvein m2-m3. Females with purple iridescent patched on FW and HW, and same diagnostic ventral color and white HW spot as in males.
 Annotated redescription. Male: FW length 57-60 mm (n=4). Dorsal FW and HW with deep purple iridescent sheen that can be sufficiently strong to resemble iridescent patches in both wings in some specimens. Dorsal FW and HW iridescence extended from submedial to postmedial areas of both wings. Dorsal FW submarginal line usually faint (but can be well defined in some specimens), diffuse, continuous. Dorsal HW marginal outline absent. HW with a projection at vein Cu1 that extends beyond anal margin. Ventral FW and HW orange to faded caramel color. Ventral HW white postmedial transverse band absent for the most part, leaving a residual thin line at crossvein m1-m2. Broad white spot at crossvein m2-m3. Ventral HW eyespot in cell M3 absent or reduced, detached from large eyespot in cell Cu1. Ventral HW eyespot in cell Cu1 contained within cell, and with a gray-brown posterior spot inside inner circle. Uncus humped, valva narrow and with few small spines.
 Female. FW length 61 mm (n=1). Wing color pattern different from male. Dorsal FW and HW with deep purple iridescent patches limited to medial area of both wings. FW submarginal line orange, conspicuous, continuous, wavy. Submarginal branch of FW submarginal line starts at M1, decreasing in width from M3 to 2A, and postmedial branch starts at M1 and ends in the M2 cell. Ventral surface of wings as in male. Sterigma projections broad and slightly pointed.
 Distribution. Ecuador to Bolivia (Frühstorfer 1912, Appendix 1), at elevations of 200 to 400 m (e.g., Jaru, Brazil and Buenavista, Ichilo, Bolivia).
 Remarks. Of all Eryphanis species, E. gerhardi has the smallest male genitalia relative to its wingspan. Casagrande (2004) lists no subspecies for E. gerhardi.
description: Published as part of Penz, Carla M., 2008, Phylogenetic Revision of Eryphanis Boisduval, with a Description of a New Species from Ecuador (Lepidoptera, Nymphalidae), pp. 1-25 in Insecta Mundi 2008 (35) on pages 13-14, DOI: 10.5281/zenodo.4532981