cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparison of 4-day vs 5-day controlled internal drug release (CIDR) + timed artificial insemination protocols in dairy heifers
Creators: name: Palomares, Roberto A.
name: Fishman, Heidi J.
name: Jones, Arthur L.
name: Jenerette, Matthew
name: Vaughn, Aimee
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2014

description: Previous studies have demonstrated that during the application of a 5-day CIDR + Timed Artificial Insemination (TAI) protocol in dairy heifers, the initial GnRH at CIDR insertion and the second PGF2a 12h after CIDR removal are not essential to optimize pregnancy at TAI (P/TAI; J.Dairy Sci 2011 94:4997- 5004). A major factor limiting the development of these programs in dairy farms is to overlook the importance of applying the hormonal injections at the correct day and time according to the specific protocol. This situation becomes more critical when trying to avoid cattle management practices during weekends. The establishment of a 4-day CIDR+TAI protocol performed on a Monday-Friday schedule would simplify the routine reproductive management of heifers in dairy farms, since it would facilitate treatment administration (Monday: CIDR insertion; Friday: CIDR withdrawal+PGF2a; next Monday: GnRH+TAI). Moreover, in contrast to the 4-day CIDR protocol, both the 5-day and 7-day CIDR programs require handling of animals on three different days of the week. In a recent pilot study heifers treated with a 4-day CIDR+TAI protocol showed an optimal P/TAI (66.7%, 10/15) similar to that observed in the of 5-day CIDR+TAI protocol (46.7%, 7/15) or AI after PGF2a injection and heat detection (46.7%, 7/15). However; despite the numerical differences, in that study the sample size was not sufficient to show statistical differences among groups. The objective of this study was to evaluate the P/TAI in dairy heifers treated with a Monday-Friday 4-day CIDR+TAI protocol compared to that of heifers treated with a 5-day CIDR+TAI protocol.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2014
Mulheres fantásticas de Clauder Arcanjo
Creators: name: Gonçalves, Adelto
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Composition of ichthyoplankton and horizontal and vertical distribution of fish larvae in the Great Meteor Seamount area in September 1998
Creators: name: Nellen, Walter
name: Ruseler, Silke
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.24 stations above and near the Great Meteor Seamount, central north Atlantic, have been sampled at eight depth strata in late summer 1998 by a modified MOCNESS. Some 18.800 fish larvae were collected and specimens were identified to species and coarser systematic levels, respectively. Taxa typical of the high sea remote from coastal areas dominated the fish larvae assembly. But species which normally are found on the shelf or at the slope occurred as well in the plankton samples, mainly above and fairly close to the 300m deep seamount, obviously keeping away from the oceanic region several thousand meters deep. Eighteen of a total of more than 150 identified fish larvae taxa belonged to the neritic province. One of these species was the third most abundant larvae found so far during this investigation, namely Chlorophthalmus agassizii. Concentration and horizontal and vertical distribution of selected species are discussed as well as migration behaviour in dependence of day and night situation and sea bottom depth. It is considered whether this seamount may be regarded as an isolated, just 1465km² large shallow water area settled permanently by a coastal fish community. The question is treated why this may be so, i.e. which kind of non biotic and biotic factors could be responsible for such a situation.
Cair para dentro de Valério Romão
Creators: name: Madalena, Emanuel
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Distribution of epibenthic communities on the Great Meteor Seamount mirrors water-column processes
Creators: name: Piepenburg, Dieter
name: Müller, Bernhard
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Seabed photographs were taken on the Great Meteor Seamount (NE Atlantic) at 15 stations at water depths of 285 to 603 m in September 1998. They were quantitatively analysed for abundance, diversity and distribution patterns of epibenthic organisms. The results clearly show that invertebrate megafauna is rather poor in both abundance and diversity. Many photographs showed no or only few epibenthic organisms. Mean abun-dances per station fell into the range from 2.5 to 71.3 ind. m-2. A total of 52 putative species were identified in the photographs. Species numbers per station varied between 12 and 22. Most prominent megafaunal taxa were sponges (e.g. Haliclona sp.), gor-gonarian (e.g. Ellisella flagellum), antipatharian (e.g. Antipathes glabberima) and ma- dreporarian corals (e.g. Dendrophyllia cf. corniger), and sea urchins (Cidaris cidaris). Small-scale distribution patterns (within-station, i.e. at a10-m scale) were characterized by a pronounced patchiness in the occurrence of dominant species. The meso-scale pat- tern (between-stations, i.e. at a 10-km scale) discriminated by multivariate statistics featured three distinct faunistic zones: the Slope (> 450 m), a Southern Plateau (290 to 300 m), and a Northern Plateau (290 to 470 m). This pattern corresponds well with the distribution of topography-driven gyres over the seamount, locally augmenting pelagic primary production, sedimentation and, hence, food supply to the benthos, as well as fostering the retention of meroplanktonic larvae within a zone.
DGSAT: Dwarf Galaxy Survey with Amateur Telescopes II. A catalogue of isolated nearby edge-on disk galaxies and the discovery of new low surface brightness systems
Creators: name: Henkel, C.
name: Javanmardi, B.
name: Martinez-Delgado, D.
name: Kroupa, P.
name: Teuwen, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The connection between the bulge mass or bulge luminosity in disk galaxies and the number, spatial and phase space distribution of associated dwarf galaxies is a discriminator between cosmological simulations related to galaxy formation in cold dark matter and generalized gravity models. Here, a nearby sample of isolated Milky Way class edge-on galaxies is introduced, to facilitate observational campaigns to detect the associated families of dwarf galaxies at low surface brightness. Three galaxy pairs with at least one of the targets being edge-on are also introduced. About 60% of the catalogued isolated galaxies contain bulges of different size, while the remaining objects appear to be bulge-less. Deep images of NGC 3669 (small bulge, with NGC 3625 at the edge of the image) and NGC 7814 (prominent bulge), obtained with a 0.4-m aperture, are also presented, resulting in the discovery of two new dwarf galaxy candidates, NGC3669-DGSAT-3 and NGC7814-DGSAT-7. Eleven additional low surface brightness galaxies are identified, previously notified with low quality measurement flags in the Sloan Digital Sky Survey (SDSS). Integrated magnitudes, surface brightnesses, effective radii, Sersic indices, axis ratios, and projected distances to their putative major hosts are displayed. At least one of the galaxies, NGC3625-DGSAT-4, belongs with a surface brightness of approximately 26 mag per arcsec^2 and effective radius >1.5 kpc to the class of ultra-diffuse galaxies (UDGs). NGC3669-DGSAT-3, the galaxy with lowest surface brightness in our sample, may also be an UDG.
description: 12 pages including 6 figures, 4 tables, a brief appendix, accepted for publication in Astronomy & Astrophysics (A&A). Paper slightly modified after A&A language editing, updating very few references and correcting a small typo at the start of the Appendix
MOESM1 of Xylan epitope profiling: an enhanced approach to study organ development-dependent changes in xylan structure, biosynthesis, and deposition in plant cell walls
Creators: name: Peralta, Angelo
name: Sivasankari Venkatachalam
name: Stone, Sydney
name: Pattathil, Sivakumar
Publisher: name: figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Arabidopsis thaliana Col-0 background stems grown to ~24Â cm for stem harvesting.
Combined Fractional Variational Problems of Variable Order and Some Computational Aspects
Creators: name: Tavares, Dina
name: Almeida, Ricardo
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 26A33, 34A08, 49K05

description: We study two generalizations of fractional variational problems by considering higher-order derivatives and a state time delay. We prove a higher-order integration by parts formula involving a Caputo fractional derivative of variable order and we establish several necessary optimality conditions for functionals containing a combined Caputo derivative of variable fractional order. Because the endpoint is considered to be free, we also deduce associated transversality conditions. In the end, we consider functionals with a time delay and deduce corresponding optimality conditions. Some examples are given to illustrate the new results. Computational aspects are discussed using the open source software package Chebfun.
description: This is a preprint of a paper whose final and definite form is with 'Journal of Computational and Applied Mathematics', ISSN: 0377-0427. Submitted 15-Feb-2017; Revised 17-Apr-2017; Accepted 21-Apr-2017
Resposta ao terno de Daniel Blume
Creators: name: Gonçalves, Adelto
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Conservation of Seamount Ecosystems: Application of an MPA Concept
Creators: name: Johnston, Paul
name: Santillo, David
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Scientific appreciation of the unique properties of seamount ecosystems has grown markedly in recent years. With this growing body of knowledge has come the realisation that the targeting of fish populations supported by these ecosystems is inherently unsustainable. For the most part, the target species are long lived and slow to mature, with low fecundity. At current levels of exploitation, some populations are already showing signs of reduced genetic diversity. The exploitation of seamount fish stocks also seriously impacts the benthic communities disturbed by the fishing gears employed in the industry. Benthic communities could also be disturbed by exploration for, and exploitation of, marine mineral resources. At current levels of knowledge concerning the structure and integration of seamount ecosystems, it is not possible to envisage that these systems can be exploited in a sustainable manner. Accordingly, an holistic conservation strategy is required. This paper explores the elements of such a strategy based upon defining seamounts as fishery no-take zones and as areas protected from the full spectrum of human activities. Given the apparently individual character of the seamount systems studied to date, this paper makes the case that a protective regime should encompass all seamounts in order globally to conserve biodiversity.
How AGN and SNe feedback affect mass transport and black hole growth in high redshift galaxies
Creators: name: Prieto, Joaquin
name: Escala, Andres
name: Volonteri, Marta
name: Dubois, Yohan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: By using cosmological hydrodynamical simulations we study the effect of supernova (SN) and active galactic nuclei (AGN) feedback on the mass transport of gas on to galactic nuclei and the black hole (BH) growth down to redshift z~6. We study the BH growth in relation with the mass transport processes associated with gravity and pressure torques, and how they are modified by feedback. Cosmological gas funelled through cold flows reaches the galactic outer region close to free-fall. Then torques associated to pressure triggered by gas turbulent motions produced in the circum-galactic medium by shocks and explosions from SNe are the main source of mass transport beyond the central ~ 100 pc. Due to high concentrations of mass in the central galactic region, gravitational torques tend to be more important at high redshift. The combined effect of almost free-falling material and both gravity and pressure torques produces a mass accretion rate of order ~ 1 M_sun/yr at ~ pc scales. In the absence of SN feedback, AGN feedback alone does not affect significantly either star formation or BH growth until the BH reaches a sufficiently high mass of $\sim 10^6$ M_sun to self-regulate. SN feedback alone, instead, decreases both stellar and BH growth. Finally, SN and AGN feedback in tandem efficiently quench the BH growth, while star formation remains at the levels set by SN feedback alone due to the small final BH mass, ~ few 10^5 M_sun. SNe create a more rarefied and hot environment where energy injection from the central AGN can accelerate the gas further.
description: 19 pages, 11 figures
A Fuga da Personagem de Miguel Jorge
Creators: name: Gonçalves, Adelto
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
Rebeldes: Geração Beat e Anarquismo Místico de Claudio Willer
Creators: name: Gonçalves, Adelto
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
Reionization effect enhancement due to primordial black holes
Creators: name: Belotsky, K. M.
name: Kirillov, A. A.
name: Nazarova, N. O.
name: Rubin, S. G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Primordial black holes (PBH) could account for variety of phenomena like dark matter, reionization of the Universe, early quasars, coalescence of black holes registered through gravitational waves recently. Each phenomenon relates to PBH of a specific mass range. PBH mass spectra varies in a wide range depending on specific model. Earlier we have shown that PBH with monochromatic mass distribution around $5\times 10^{16}$ g value allow to re-ionize the Universe moderately. Here we show that reionization effect and contribution to dark matter can be simultaneously enhanced with more natural extended mass distribution in the range around the same mass value.
description: 6 pages, 6 figures. Accepted for publication in International Journal of Modern Physics D
Probing light mediators at ultra-low threshold energies with coherent elastic neutrino-nucleus scattering
Creators: name: Dent, James B.
name: Dutta, Bhaskar
name: Liao, Shu
name: Newstead, Jayden L.
name: Strigari, Louis E.
name: Walker, Joel W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Light neutral mediators, with mass $\lesssim 1$ GeV, are common features of extensions to the Standard Model (SM). Current astrophysical and terrestrial experiments have constrained the model parameter space, and planned experiments around the world promise continued improvement in sensitivity. In this paper we study the prospects for probing light neutral mediators using terrestrial stopped pion and reactor sources in combination with ultra-low threshold nuclear and electron recoil detectors. We show that the coherent neutrino-nucleus and neutrino-electron scattering channels provide complementary sensitivity to light mediators. With low threshold detectors, we show that most stringent bounds on models arise from the nuclear scattering process, improving upon previous bounds from electron scattering of solar neutrinos by nearly an order of magnitude for mediator masses $\gtrsim 0.1$ GeV.
description: 29 pages, 6 figures, CNNS confidence limit code available at: https://github.com/jaydenn/Conudl
Poemas Primos e de Pi
Creators: name: Mota, António
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
MOESM1 of The TcEG1 beetle (Tribolium castaneum) cellulase produced in transgenic switchgrass is active at alkaline pH and auto-hydrolyzes biomass for increased cellobiose release
Creators: name: Willis, Jonathan
name: Grant, Joshua
name: Mazarei, Mitra
name: Kline, Lindsey
name: Rempe, Caroline
name: A. Collins
name: Turner, Geoffrey
name: Decker, Stephen
name: Sykes, Robert
name: Davis, Mark
name: Labbe, Nicole
name: Jurat-Fuentes, Juan
name: C. Stewart
Publisher: name: figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology
subject: Computational Biology

description: Additional file 1. Additional figures and table.
title: Analyzing PeerFlow – A Bandwidth Estimation System for Untrustworthy Environments
Creators: name: Mitseva, Asya
name: Engel, Thomas
name: Panchenko, Andriy
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Privacy
subject: Anonymous Communication
subject: Onion Routing
subject: Tor
subject: Security
subject: Performance

description: Tor is the most popular low-latency anonymization network comprising over 7,000 nodes run by volunteers. To balance the user traffic load over the diverse resource capabilities of these nodes, Tor guides users to choose nodes in proportion to their available bandwidth. However, self-reported bandwidth values are not trustworthy. Recently, a new bandwidth measurement system, PeerFlow, has been proposed aiming to solve the Tor bandwidth estimation problem. In this work, we introduce the first practical analysis of PeerFlow. We proposed a set of strategies for the practical realization of probation periods in PeerFlow and showed that many Tor nodes cannot recover to their normal state after one measuring period. We also demonstrated that low-bandwidth adversaries gain significantly higher bandwidth estimates exceeding the theoretically defined security boundaries of PeerFlow.
Uniform bounds for rational points on complete intersections of two quadric surfaces
Creators: name: Tran, Manh Hung
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11D25, 11D45, 11G05, 14G05

description: We give uniform upper bounds for the number of rational points of height at most $B$ on non-singular complete intersections of two quadrics in $\mathbb{P}^3$ defined over $\mathbb{Q}$. To do this, we combine determinant methods with descent arguments.
description: 17 pages. Comments are welcome
[Poemas] de Isabel Cristina Pires
Creators: name: Pires, Isabel Cristina
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Using SeamountsOnline, a biogeographic information system for seamounts to examine patterns in seamount endemism
Creators: name: Stocks, Karen I.
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.SeamountOnline is a project compiling existing information on the biota and environments of seamounts globally and making it freely available through a web-based portal. The system contains records of species- or genus-level observations from seamounts, and includes a breadth of metazoan taxa. The current contents of the system are briefly described, including how data can be searched, viewed and downloaded through the interactive web site (http://seamounts.sdsc.edu), and its research and management uses and limitations are discussed. The system design is outlined, along with a discussion of the main features and design trade-offs that were encountered.
Raman study of the anharmonicity in YBa$_2$Cu$_3$O$_x$
Creators: name: Liarokapis, E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A systematic Raman study in the visible carried out on the YBa2Cu316,18Ox (x=6-7) compounds, with isotopic substitution of 18O for 16O, has detected a doping dependent deviation from harmonic behavior for the frequency shift of the in-phase mode, a smaller amount of anharmonicity for the apex mode, and almost no effect for the out-of-phase B1g-symmetry phonon. It appears that the amount of anharmonicity depends strongly on the oxygen concentration; it diminishes close to the tetragonal to orthorhombic structural phase transition and close to optimal doping, while it reaches its maximum value for the ortho-II and a tetragonal phase. The almost zero anharmonicity at optimal doping persists even at 77K. The data in the overdoped oxygen concentration, where a softening of the in-phase phonon frequency occurs, indicate that the anharmonicity is not enhanced by the sudden increase in the CuO2 buckling. The results fully agree with recent studies of the ortho-II phase but they do not comply with a static double-well potential of the apical oxygen atom at optimal doping.
description: Dedicated to Prof. K. A. M\"uller on the Occasion of his 90th Birthday
title: Context-based Access Control and Trust Scores in Zero Trust Campus Networks
Creators: name: Lukaseder, Thomas
name: Halter, Maya
name: Kargl, Frank
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Network Security
subject: Network Management
subject: Zero-Trust
subject: Trust Scores
subject: Subjective Logic

description: Research networks are used daily by thousands of students and scientific staff for education and research and therefore have a large number of sensitive and valuable resources. The currently predominant perimeter security model is failing more and more often to provide sufficient protection against attackers. This paper analyses to what extent the zero trust model that is popular in some commercial networks can also be applied to the open and heterogeneous research network of a German university. The concept presented herein to implement such an identity-based network model focuses in particular on the components which are necessary for authentication and authorization. The feasibility of the model is demonstrated by a self-implemented prototype that protects access control to a prominent eLearning system called Moodle. Non-functional performance tests show an increase in performance compared to the current system where access control is only conducted inside the web application. The Zero Trust Model enables the determination of the trustworthiness of individual identities and thus offers valuable new ways to secure a research network.
Modeling the Spectral Energy Distribution of the radio galaxy IC310
Creators: name: Fraija, N.
name: Marinelli, A.
name: Galvan-Gamez, A.
name: Aguilar-Ruiz, E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The radio galaxy IC310 located in the Perseus Cluster is one of the brightest objects in the radio and X-ray bands, and one of the closest active galactic nuclei observed in very-high energies. In GeV - TeV $γ$-rays, IC310 was detected in low and high flux states by the MAGIC telescopes from October 2009 to February 2010. Taking into account that the spectral energy distribution (SED) up to a few GeV seems to exhibit a double-peak feature and that a single-zone synchrotron self-Compton (SSC) model can explain all of the multiwavelength emission except for the non-simultaneous MAGIC emission, we interpret, in this work, the multifrequency data set of the radio galaxy IC310 in the context of homogeneous hadronic and leptonic models. In the leptonic framework, we present a multi-zone SSC model with two electron populations to explain the whole SED whereas for the hadronic model, we propose that a single-zone SSC model describes the SED up to a few GeVs and neutral pion decay products resulting from p$γ$ interactions could describe the TeV - GeV $γ$-ray spectra. These interactions occur when Fermi-accelerated protons interact with the seed photons around the SSC peaks. We show that, in the leptonic model the minimum Lorentz factor of second electron population is exceedingly high $γ_e\sim10^5$ disfavoring this model, and in the hadronic model the required proton luminosity is not extremely high $\sim 10^{44}$ erg/s, provided that charge neutrality between the number of electrons and protons is given. Correlating the TeV $γ$-ray and neutrino spectra through photo-hadronic interactions, we find that the contribution of the emitting region of IC310 to the observed neutrino and ultra-high-energy cosmic ray fluxes are negligible.
description: 11 pages and 5 figures. Accepted for publication in Astroparticle Physics. arXiv admin note: text overlap with arXiv:1607.04633
O beijo do íncubo
Creators: name: Mancelos, João De
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
A study of the optical and polarisation properties of InGaN/GaN multiple quantum wells grown on a-plane and m-plane GaN substrates
Creators: name: Kundys, D.
name: Sutherland, D.
name: Davies, M.
name: Oehler, F.
name: Griffiths, J.
name: Dawson, P.
name: Kappers, M. J.
name: Humphreys, C. J.
name: Schulz, S.
name: Tang, F.
name: Oliver, R. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper we report on a comparative study of the low temperature emission and polarisation properties of InGaN/GaN quantum wells (QWs) grown on nonpolar a-plane and m-plane free-standing bulk GaN substrates where the In content varied from 0.14 to 0.28 in the m-plane series and 0.08 to 0.21 for the a-plane series. The low temperature photoluminescence spectra from both sets of samples are very broad with full width at half-maximum height increasing from 81 to 330 meV as the In fraction increases. Comparative photoluminescence excitation spectroscopy indicates that the recombination mainly involves strongly localised carriers. At a temperature of 10 K the degree of linear polarisation of the a-plane samples is much smaller than of the m-plane counterparts and also varies across the spectrum. From polarisation-resolved photoluminescence excitation spectroscopy we measured the energy splitting between the lowest valence sub-band states to lie in the range of 23-54 meV for both a-and m-plane samples in which we could observe distinct exciton features in the polarised photoluminescence excitation spectroscopy. Thus, the thermal occupation of a higher valence subband cannot be responsible for the reduction of the degree of linear polarisation. Time-resolved spectroscopy indicates that in a-plane samples there is an extra emission component which at least partly responsible for the reduction in the degree of linear polarisation.
description: 9 pages 7 figures
Manipulating the Coulomb interaction: A Green's function perspective
Creators: name: Barcellona, Pablo
name: Bennett, Robert
name: Buhmann, Stefan Yoshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a unified framework for studying Coulomb interactions in arbitrary environments using macroscopic quantum electrodynamics on the basis of the electromagnetic Green's function. Our theory can be used to derive the Coulomb potential of a single charged particle as well as that between two charges in the presence of media, bodies and interfaces of arbitrary shapes. To demonstrate this, we reproduce the well-known screened Coulomb force, account for local-field effects and consider new cases such as a dielectric cavity and a conducting plate with a hole.
title: The impact of the Great Meteor Seamount (NE Atlantic) on the nutritional condition of larval Vinciguerria nimbaria (Photichthyidae) - a histological study
Creators: name: Hartmann, Frank
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.A total of 280 fish larvae of Vinciguerria nimbaria were sampled at 26 stations on the Great Meteor Seamount from August to September 1998. Nutritional condition was determined from histological analyses. As indicators, hepatocytes´ quantities of intracellular glycogen, the midgut mucosa´s height, the pancreatic zymogen content and the fine structure of these tissues were consulted. Nutritional condition, standard length, and developmental stage of each larvae were examined and statistically compared with reference to three seamount areas: plateau, slope and oceanic zone. No differences of the nutritional state were observed between those V. nimbaria larvae caught above the seamount plateau and those from the oceanic zone. In both regions, however, larvae were predominantly better nourished than larvae in the slope area between seamount plateau and oceanic zone. The results of a cluster analysis revealed that the anticyclonically streaming water body above the slope has to be differentiated into two sections. One section, situated in the west of the plateau, obviously offers poor nourishing conditions to ichthyoplankton organisms. In contrast, the other section in the east contains Vinciguerria larvae which are generally well nourished. The nutritional condition of fish larvae caught in that area corresponds to those of the plateau and the oceanic zone.
[Poemas] de Luís Aguiar
Creators: name: Aguiar, Luís
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Journées RNBM 2023 : « Données et documentation mathématiques, préserver, accéder : aujourd’hui et demain »
Publisher: name: Réseau national des bibliothèques de mathématiques
Year: 2024

description: Les Journées RNBM se sont déroulées du 20 au 24 novembre au CIRM Marseille, Luminy.
Additional file 1: Figure S1. of Obesity reversibly depletes the basal cell population and enhances mammary epithelial cell estrogen receptor alpha expression and progenitor activity
Creators: name: Chamberlin, Tamara
name: D’Amato, Joseph
name: Arendt, Lisa
Publisher: name: figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology

description: High-fat diet (HFD) feeding increases mammary adipocyte size and inflammation. A C57Bl/6 female mice were fed a HFD or control diet (Con) starting at 8 weeks of age. Fat surrounding the uterus (gonadal fat) was weighed in Con and HFD mice (n = 7 mice/group). B Representative images of mammary glands from Con and HFD mice, stained with F4/80 to detect crown-like structures. C Quantification of adipocyte diameters from mammary glands of Con and HFD mice (n = 7 mice/group). D Quantification of crown-like structures from mammary glands of Con and HFD mice (n = 7 mice/group). No crown-like structures were observed in the mammary glands of Con mice. Bars represent mean ± s.d. Magnification bar = 100 μm. (PDF 230 kb)
The extended Northern ROSAT Galaxy Cluster Survey (NORAS II) I. Survey Construction and First Results
Creators: name: Boehringer, Hans
name: Chon, Gayoung
name: Retzlaff, Joerg
name: Truemper, Joachim
name: Meisenheimer, Klaus
name: Schartel, Norbert
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: As the largest, clearly defined building blocks of our Universe, galaxy clusters are interesting astrophysical laboratories and important probes for cosmology. X-ray surveys for galaxy clusters provide one of the best ways to characterise the population of galaxy clusters. We provide a description of the construction of the NORAS II galaxy cluster survey based on X-ray data from the northern part of the ROSAT All-Sky Survey. NORAS II extends the NORAS survey down to a flux limit of 1.8 x 10^(-12) erg s^-1 cm^-2 (0.1 - 2.4 keV) increasing the sample size by about a factor of two. The NORAS II cluster survey now reaches the same quality and depth of its counterpart, the Southern REFLEX II survey, allowing us to combine the two complementary surveys. The paper provides information on the determination of the cluster X-ray parameters, the identification process of the X-ray sources, the statistics of the survey, and the construction of the survey selection function, which we provide in numerical format. Currently NORAS II contains 860 clusters with a median redshift of z = 0.102. We provide a number of statistical functions including the logN-logS and the X-ray luminosity function and compare these to the results from the complementary REFLEX II survey. Using the NORAS II sample to constrain the cosmological parameters, sigma_8 and Omega_m, yields results perfectly consistent with those of REFLEX II. Overall, the results show that the two hemisphere samples, NORAS II and REFLEX II, can be combined without problems to an all-sky sample, just excluding the Zone-of-Avoidance.
description: 14 pages, 13 figures
Provas académicas
Creators: name: Letras, RUA-L Revista Da Universidade De Aveiro
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: A Survey on Sender Identification Methodologies for the Controller Area Network
Creators: name: Kneib, Marcel
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Sender Identification
subject: CAN Fingerprinting
subject: Intrusion Detection System
subject: Controller Area Network Security
subject: Automotive Security

description: The connectivity of modern vehicles is constantly increasing and consequently also the amount of attack vectors. Researchers have shown that it is possible to access internal vehicle communication via wireless connections, allowing the manipulation of safety-critical functions such as brakes and steering. If a Electronic Control Unit (ECU) can be compromised and is connected to the internal vehicle bus, attacks on the vehicle can be carried out in particular by impersonating other bus participants. Problematic is that the Controller Area Network (CAN), the most commonly used bus technology for internal vehicle communication, does not provide trustworthy information about the sender. Thus ECUs are not able to recognize whether a received message was sent by an authorized sender. Due to the limited applicability of cryptographic measures for the CAN, sender identification methods were presented that can determine the sender of a received message based on physical characteristics. Such approaches can increase the security of internal vehicle networks so that, for example, the manipulations can be limited to a single bus segment, thus preventing the propagation of the attack. This paper presents the different methodologies, which can mainly be divided into the categories time- and voltage-based, identifies problems as well as open questions and compares the existing approaches. The work thus offers an introduction into the topic, identifies possible research fields and enables a quick evaluation of the existing technologies.
Congressos, Colóquios, Ciclos de Conferências, Seminários e Jornadas
Creators: name: Letras, RUA-L Revista Da Universidade De Aveiro
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações
title: Benthic foraminifera communities at seamount Great Meteorbank
Creators: name: Heinz, Petra
name: Ruepp, Dominik
name: Hemleben, Christoph
Publisher: name: ASC 2002 - M - Theme session
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Benthic foraminifera are among the most abundant organisms living in deep-sea sediments. Their species composition, abundance and distributional pattern mainly depend on environmental factors, such as food supply.
Prólogo
Creators: name: Carrington, Maria Cristina
name: Andrade, António Manuel
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: Sem resumo disponível.
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 9 (2020): Arte(s) e ofício(s) do livro e do mercado editorial
Chiral perturbation theory and nucleon-pion-state contaminations in lattice QCD
Creators: name: Bar, Oliver
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Multi-particle states with additional pions are expected to be a non-negligible source of excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral perturbation theory can be employed to calculate the contamination due to two-particle nucleon-pion states in various nucleon observables. Leading order results are presented for the nucleon axial, tensor and scalar charge and three Mellin moments of parton distribution functions (quark momentum fraction, helicity and transversity moment). Taking into account phenomenological results for the charges and moments the impact of the nucleon-pion-states on lattice estimates for these observables can be estimated. The nucleon-pion-state contribution results in an overestimation of all charges and moments obtained with the plateau method. The overestimation is at the 5-10% level for source-sink separations of about 2 fm. The source-sink separations accessible in contemporary lattice simulations are found to be too small for chiral perturbation theory to be directly applicable.
description: 32 pages, 12 figures, review article for the International Journal of Modern Physics. V2: Comment and five references added
title: Urheberrecht ./. Sicherheitsanalyse
Creators: name: Müller, Nico
name: Müller, Tilo
name: Freiling, Felix
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Urheberrecht
subject: Sicherheitsanalys
subject: Reverse Engineering

description: 2007 hat die Bundesregierung im Rahmen des 41. Strafrechtsänderungsgesetzes zur Bekämpfung von Computerkriminalität den umstrittenen Tatbestand des Ausspähens und Abfangens von Daten, inklusive deren Vorbereitung, unter Strafe gestellt. Durch das schon damals äußerst umstrittene Gesetz drohte die Tätigkeit von Sicherheitsforschern kriminalisiert zu werden, weswegen eine Klarstellung der Gesetzeslage durch eine Verfassungsbeschwerde erzwungen wurde. Jedoch wird neben der strafrechtlichen Relevanz von Sicherheitsanalysen oftmals die zivilrechtliche Seite des Urheberrechts übersehen, die eine beinahe ebenso große Bedrohung für Forscher darstellt, die sich kritisch mit der Sicherheit von Software auseinandersetzen. Im Folgenden soll daher die rechtliche Lage zu Sicherheitsanalysen kommerzieller Software für Forschungszwecke erörtert und die existierenden Grauzonen rechtlicher Unsicherheit ausgeleuchtet werden.
Maximum Caliber Inference and the Stochastic Ising Model
Creators: name: Cafaro, Carlo
name: Ali, Sean Alan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the maximum caliber variational principle as an inference algorithm used to predict dynamical properties of complex nonequilibrium, stationary, statistical systems in the presence of incomplete information. Specifically, we maximize the path entropy over discrete time step trajectories subject to normalization, stationarity, and detailed balance constraints together with a path-dependent dynamical information constraint reflecting a given average global behavior of the complex system. A general expression for the transition probability values associated with the stationary random Markov processes describing the nonequilibrium stationary system is computed. By virtue of our analysis, we uncover that a convenient choice of the dynamical information constraint together with a perturbative asymptotic expansion with respect to its corresponding Lagrange multiplier of the general expression for the transition probability leads to a formal overlap with the well-known Glauber hyperbolic tangent rule for the transition probability for the stochastic Ising model in the limit of very high temperatures of the heat reservoir.
description: 21 pages, no figures
title: Project OVVL – Threat Modeling Support for the entire secure development lifecycle
Creators: name: Schaad, Andreas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Threat Modeling
subject: Secure Software Development Lifecycle
subject: STRIDE

description: OVVL (the Open Weakness and Vulnerability Modeller) is a tool and methodology to support threat modeling in the early stages of the secure software development lifecycle. We provide an overview of OVVL (https://ovvl.org), its data model and browser-based UI. We equally provide a discussion of initial experiments on how identified threats in the design phase can be aligned with later activities in the software lifecycle (issue management and security testing).
title: Lean Privacy by Design
Creators: name: Zibuschka, Jan
name: Zimmermann, Christian
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Datenschutz
subject: lean
subject: agil
subject: SCRUM
subject: PbD

description: Durch agile Prozesse und Praktiken können Firmen in komplexen, offenen Ökosystemen flexbiler und effizienter agieren. Agile Methoden werden auch in Anwendungsfeldern verwendet, die sich durch besondere Datenschutz- und Sicherheitsanforderungen auszeichnen. Allerdings wird die gegenwärtig übliche Umsetzung solcher Anforderungen im SCRUM-Vorgehen von SCRUM-Teams als umständlich und schwer nachvollziehbar und seitens der Datenschutzverantwortlichen als kostenintensiv und überkompliziert empfunden. Um diese Probleme zu adressieren, schlagen wir einen auf lean thinking basierenden Ansatz zur Behandlung von Datenschutzanforderungen in agilen Entwicklungsprozessen vor.
Additional file 1: Figure S1. of Sirt1 interaction with active Smad2 modulates transforming growth factor-β regulated transcription
Creators: name: García-Vizcaíno, Eva
name: Liarte, Sergio
name: Alonso-Romero, José
name: Nicolás, Francisco
Publisher: name: figshare
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
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: Developmental Biology

description: TGFβ induces the acetylation of Smad2. (a) Hep3B cells were serum starved overnight, treated with TSA for 8 h followed by TGFβ for the indicated times. Smad2 was purified by immunoprecipitation, then acetyl-Lys,Smad2, Smad4 and PSmad2 were detected by Western Blot. Ack/Smad2 fold increase is indicated. (b) Schematic representation of Smad2 (K19R, K20R, K39R and K19Q, K20Q, K39Q) acetylation mutants. (c) Schematic representation of Sirt1H363Y nucleotide mutation. Nucleotide and amino acid mutations are highlighted in red. (PDF 219 kb)
Introdução
Creators: name: Alegre, Teresa
name: Suisse, Abdelilah
Publisher: name: RUA-L: Revista da Universidade de Aveiro. Letras
Year: 2021

description: O número de 2019 da revista RUA-L, subordinado ao tema Itinerâncias: línguas, textos e mediações, inscreve-se no diálogo entre línguas e culturas sob diferentes perspetivas – linguísticas, culturais, literárias, tradutológicas. Os artigos aqui reunidos confluem em torno de duas temáticas aglutinadoras que dizem respeito aos textos e à tradução (Parte 1) e às línguas (Parte 2).
description: RUA-L: Revista da Universidade de Aveiro. Letras, n.º 8 (2019): Itinerâncias: línguas, textos e mediações