cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cu I resonance lines in turn-off stars of NGC 6752 and NGC 6397. Effects of granulation from CO5BOLD models
Creators: name: Bonifacio, Piercarlo
name: Caffau, Elisabetta
name: Ludwig, Hans-Günter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Copper is an element whose interesting evolution with metallicity is not fully understood. Observations of copper abundances rely on a very limited number of lines, the strongest are the Cu I lines of Mult. 1 at 324.7 nm and 327.3 nm which can be measured even at extremely low metallicities. Aims. We investigate the quality of these lines as abundance indicators. Method. We measure these lines in two turn-off (TO) stars in the Globular Cluster NGC 6752 and two TO stars in the Globular Cluster NGC 6397 and derive abundances with 3D hydrodynamical model atmospheres computed with the CO5BOLD code. These abundances are compared to the Cu abundances measured in giant stars of the same clusters, using the lines of Mult. 2 at 510.5 nm and 578.2 nm. Results. The abundances derived from the lines of Mult. 1 in TO stars differ from the abundances of giants of the same clusters. This is true both using CO5BOLD models and using traditional 1D model atmospheres. The LTE 3D corrections for TO stars are large, while they are small for giant stars. Conclusions. The Cu I resonance lines of Mult. 1 are not reliable abundance indicators. It is likely that departures from LTE should be taken into account to properly describe these lines, although it is not clear if these alone can account for the observations. An investigation of these departures is indeed encouraged for both dwarfs and giants. Our recommendation to those interested in the study of the evolution of copper abundances is to rely on the measurements in giants, based on the lines of Mult. 2. We caution, however, that NLTE studies may imply a revision in all the Cu abundances, both in dwarfs and giants.
description: to be published on A\&A
A fortuna ao serviço da salvação da alma, da família e da memória, através dos testamentos dos arcebispos e dignatários de Braga na Idade Média (séculos XII-XV)
Creators: name: Carvalho, Elisa Maria Domingues Da Costa
Publisher: name: Lusitania Sacra
Year: 2001

description: O alto clero bracarense medieval encarou os bens materiais como uma manifestação da benção divina e do poder temporal. Preocupado com o destino do sua riqueza, dispôs dela em testamento. Num primeiro momento, este artigo mostra que parte considerável da fortuna individual foi aplicada a favor da alma, na preparação cuidada da sepultura, nas cerimónias de enterramento e nos sufrágios post mortem. Numa segunda parte, demonstra-se que a família (conceito que abrange parentela e protegidos) não foi esquecida, tendo os clérigos valorizado a propriedade vinculada e a figura do herdeiro universal, preferencialmente também clérigo. Por fim, conclui-se que a disposição de bens por testamento foi uma forma privilegiada de fazer perdurar a memória do testador, de demonstrar poder e riqueza, enfim, de manter, para além dos barreiras do tempo, uma imagem individual no seio de uma colectividade.
description: Lusitania Sacra, n. 13-14 (2001): A Historiografia Religiosa Medieval Hoje: Temas e Problemas
A Revised Orbital Ephemeris for HAT-P-9b
Creators: name: Dittmann, Jason A.
name: Close, Laird M.
name: Scuderi, Louis J.
name: Turner, Jake
name: Stephenson, Peter C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present here three transit observations of HAT-P-9b taken on 14 February 2010, 18 February 2010, and 05 April 2010 UT from the University of Arizona's 1.55 meter Kuiper telescope on Mt. Bigelow. Our transit light curves were obtained in the I filter for all our observations, and underwent the same reduction process. All three of our transits deviated significantly (approximately 24 minutes earlier) from the ephemeris of Shporer et al. (2008). However, due to the large time span between our observed transits and those of Shporer et al. (2008), a 6.5 second (2 sigma) shift downwards in orbital period from the value of Shporer et al. (2008) is sufficient to explain all available transit data. We find a new period of 3.922814 +/- 0.000002 days for HAT-P-9b with no evidence for significant nonlinearities in the transit period.
description: 10 pages, 3 figures
The structure and segmentation of the Southeast Indian Ridge
Creators: name: Small, Christopher
name: Cochran, James R.
name: Sempere, Jean-Christophe
name: Christie, David
Publisher: name: Columbia University
Year: 1999
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Marine geophysics
subject: Geomorphology
subject: Mid-ocean ridges

description: The Southeast Indian Ridge (SEIR) spreads at a relatively narrow range of intermediate rates (59–75 km/Ma) but exhibits the full range of slow to fast spreading morphology and segmentation. Satellite gravity data reveal transitions in the structure of the spreading center where it is influenced by the Amsterdam and Kerguelen hotspots and at the Australian– Antarctic Discordance (AAD). Although the spreading rate between the hotspots and the AAD is nearly constant, the ridge exhibits a variety of distinct styles of morphology and segmentation not observed at fast or slow spreading centers. Recently, collected multibeam bathymetry data reveal a transition from East Pacific Rise style overlapping axial highs near 92°E to Mid-Atlantic Ridge style axial valleys with non-transform offsets near 116°E. The intervening segmentation is characterized by propagating offsets coexisting with stationary transforms, which exhibit different degrees of temporal stability. Currently, there are 10 transform offsets between the hotspots and the AAD but only five of these have persisted since seafloor spreading stabilized at 35 Ma. The other five appear to have formed since 35 Ma and several more have disappeared by transform shortening or coalesced by along-axis propagation. There is a transition from monotonic offset propagation near the hotspots to oscillatory propagation approaching the AAD. This change in offset stability corresponds to transitions in depth, axial morphology and offset structure. Through much of the transitional region, higher order segmentation is characterized by en-echelon offsets of a diffuse spreading axis that generally lacks a well-defined neovolcanic zone. Since the spreading rate is nearly constant, the regional variation in axial morphology and segmentation appears to be controlled by an upper mantle thermal gradient - possibly a result of flux of asthenosphere from the hotspots to the AAD. This is consistent with the gradual increase in average ridge flank depths along this part of the plate boundary but segment scale changes in axial depth reveal spatio-temporal variability in the dynamic topography that are not preserved on older lithosphere. Intrasegment transitions in axial morphology and en-echelon offsets within first order segments suggest that local variations in mantle thermal structure introduce short-lived instabilities in higher order segmentation and dominate the short term evolution of the plate boundary.
CARDOSO, A. Pinto – Santo António dos Portugueses em Roma: guia histórico e artístico da igreja. Roma: Instituto Português de Santo António em Roma, 1996
Creators: name: Rosa, Maria Lurdes
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Improving Transition Voltage Spectroscopy of Molecular Junctions
Creators: name: Markussen, Troels
name: Chen, Jingzhe
name: Thygesen, Kristian S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transition voltage spectroscopy (TVS) is a promising spectroscopic tool for molecular junctions. The principles in TVS is to find the minimum on a Fowler-Nordheim plot where $\ln(I/V^2)$ is plotted against $1/V$ and relate the voltage at the minimum, $V_{\rm min}$, to the closest molecular level. Importantly, $V_{\rm min}$, is approximately half the voltage required to see a peak in the $dI/dV$ curve. Information about the molecular level position can thus be obtained at relatively low voltages. In this work we show that the molecular level position can be determined at even lower voltages, $V_{\rm min}^{(α)}$ by finding the minimum of $\ln(I/V^α)$ with $α<2$. On the basis of a simple Lorentzian transmission model we analyze theoretical {\it ab initio} as well as experimental $I-V$ curves and show that the voltage required to determine the molecular levels can be reduced by $\sim 30%$ as compared to conventional TVS. As for conventional TVS, the symmetry/asymmetry of the molecular junction needs to be taken into account in order to gain quantitative information. We show that the degree of asymmetry may be estimated from a plot of $V_{\rm min}^{(α)}$ vs. $α$.
description: 6 pages, 8 figures
Beliefs on social distancing and face mask practices during the COVID-19 pandemic in low- and middle-income countries: a cross-sectional study
Creators: name: Harapan, Harapan
Publisher: name: figshare
Year: 2022
Subjects: subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: STROBE Statement—Checklist of "Beliefs on social distancing and face mask practices during the COVID-19 pandemic in low- and middle-income countries: a cross-sectional study" submitted to F1000Research
Effects of Intermittent Emission: Noise Inventory for Scintillating Pulsar B0834+06
Creators: name: Gwinn, C. R.
name: Johnson, M. D.
name: Smirnova, T. V.
name: Stinebring, D. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare signal and noise for observations of the scintillating pulsar B0834+06, using very-long baseline interferometry and a single-dish spectrometer. Comparisons between instruments and with models suggest that amplitude variations of the pulsar strongly affect the amount and distribution of self-noise. We show that noise follows a quadratic polynomial with flux density, in spectral observations. Constant coefficients, indicative of background noise, agree well with expectation; whereas second-order coefficients, indicative of self-noise, are about 3 times values expected for a pulsar with constant on-pulse flux density. We show that variations in flux density during the 10-sec integration account for the discrepancy. In the secondary spectrum, about 97% of spectral power lies within the pulsar's typical scintillation bandwidth and timescale; an extended scintillation arc contains about 3%. For a pulsar with constant on-pulse flux density, noise in the dynamic spectrum will appear as a uniformly-distributed background in the secondary spectrum. We find that this uniform noise background contains 95% of noise in the dynamic spectrum for interferometric observations; but only 35% of noise in the dynamic spectrum for single-dish observations. Receiver and sky dominate noise for our interferometric observations, whereas self-noise dominates for single-dish. We suggest that intermittent emission by the pulsar, on timescales < 300 microseconds, concentrates self-noise near the origin in the secondary spectrum, by correlating noise over the dynamic spectrum. We suggest that intermittency sets fundamental limits on pulsar astrometry or timing. Accounting of noise may provide means for detection of intermittent sources, when effects of propagation are unknown or impractical to invert.
description: 38 pages, 10 figures
Blueprint for #CitSciComm with and for policymakers (D4.4)
Creators: name: Perucca Iannitelli, Carla
name: Magalhães, Joana
name: Guasch, Blanca
name: Leguina, Leire
name: Elorza, Ana
name: Lacunza, Izaskun
name: Citarella, Maria Angela
name: Giardullo, Paolo
name: Luís, Cristina
name: Navalhas, Inês
name: Marin-González, Esther
name: Tola, Elisabetta
name: Pelacho, Maite
name: Arias, Rosa
Publisher: name: Zenodo
Year: 2023
Subjects: science communication; citizen science

description: NEWSERA Blueprints for citizen science communication (#citscicomm) with and for quadruple helix stakeholders (citizens and society at large, academic scientists, public sector and policymakers, industry and SMES) and science and data journalists is an instrument that can serve a general audience, including those who are planning to start a citizen science (CS) project, those who want to improve and/or rethink their communication strategies in order to increase specific target audiences, or those who want to enlarge their scope of action by involving the different actors of the quadruple helix model and the media. The road for CS projects establishment and sustainability is long and there are many barriers to be faced. But you are not alone! Together with 39 CS projects from Italy, Spain and Portugal, the NEWSERA Pilots, we have tested the NEWSERA methodology for the co-design, implementation, iterative assessment and validation of communication strategies directed to each of the quadruple helix stakeholders and science and data journalists. This was performed through our #CitSciComm Labs, dedicated to each individual stakeholder, consisting of three rounds of workshops, replicated in each of the participating countries, throughout three years. In this series of five blueprints, NEWSERA brings the learnings of this co-created process together with our pilots, invited stakeholders and science communication experts (NEWSERA Sounding Board) that was complemented with mentoring, capacity building and networking sessions, generating knowledge, recommendations and useful resources. In this blueprint, dedicated to policymakers as target stakeholder, you will find, more in depth, the importance to address this stakeholder, good practices on the co-design of targeted communication plans, elements of co-design, mutual benefits of CS project-stakeholder, and indicators. Furthermore, a description and details of messages, innovative tools, channels and specific case-studies from the NEWSERA Pilots are included. Finally, we shared a series of recommendations to efficiently engage with quadruple helix stakeholders and science and data journalists for wider impact and ensure replicability of the NEWSERA findings and science communication strategies in citizen science projects and beyond.
Wavelength-Diverse Polarization Modulators for Stokes Polarimetry
Creators: name: Tomczyk, Steven
name: Casini, Roberto
name: de Wijn, Alfred G.
name: Nelson, Peter G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Information about the three-dimensional structure of solar magnetic fields is encoded in the polarized spectra of solar radiation by a host of physical processes. To extract this information, solar spectra must be obtained in a variety of magnetically sensitive spectral lines at high spatial, spectral, and temporal resolution with high precision. The need to observe many different spectral lines drives the development of Stokes polarimeters with a high degree of wavelength diversity. We present a new paradigm for the design of polarization modulators that operate over a wide wavelength range with near optimal polarimetric efficiency and are directly applicable to the next generation of multi-line Stokes polarimeters. These modulators are not achromatic in the usual sense because their polarimetric properties vary with wavelength, but they do so in an optimal way. Thus we refer to these modulators as polychromatic. We present here the theory behind polychromatic modulators, illustrate the concept with design examples, and present the performance properties of a prototype polychromatic modulator.
description: 13 pages, 1 table, 5 figures, accepted for publication in Applied Optics
Tuberculosis (TB) storytelling : improving community nursing TB program delivery
Creators: name: MacNaughton, April Dawn
Publisher: name: University of British Columbia
Year: 2016

description: This study explores the effectiveness of the traditional First Nations practice of storytelling as a tool in improving Community Health Nurse (CHN) continuing education, regarding tuberculosis (TB) programming in First Nations communities. The first part of this study involves a critical analysis of literature regarding the evolution of Canada’s First Nations policies and health care, and the use of storytelling as a learning tool in Western and First Nations contexts. Informed by critical social justice as a theoretical lens, and decolonising perspectives in health care, the analysis of the literature focuses on (a) shifting factors and societal values shaping the evolution of health care policy and regimes in First Nations health, and (b) the use of storytelling as an educational tool for CHNs working in First Nations communities. The analysis indicates that generations of inequities have resulted in First Nations mistrust of the Western health care system and a widening gap between the health status of First Nations and that of the broader Canadian population. The analysis also reveals that storytelling is an essential component of traditional First Nations education. Finally, the literature shows that there is increasing recognition by current health care policy makers that narrowing the gap in health outcomes requires that First Nations health care programming reflects First Nations input and community needs. The second part of this study evaluates the use of storytelling in CHN TB continuing education. TB continuing education sessions for CHNs included first person accounts by First Nations Elders, as part of the TB Tapestries Project, after which 70 CHNs were invited to provide written feedback. Thematic analysis of this feedback reveals increased appreciation for First Nations traditional storytelling as an important tool in provision of First Nations health care; recognition of the effectiveness of storytelling compared to other teaching methods; and a desire to change future TB programming by including storytelling. Based on the analysis of literature and CHN responses to the TB continuing education sessions, the primary recommendation of this study is to incorporate storytelling into TB education sessions for CHNs and broader health care programming for First Nations communities.
Morphology and structure of the Lomonosov Ridge, Arctic Ocean
Creators: name: Cochran, James R.
name: Edwards, Margo
name: Coakley, Bernard J.
Publisher: name: Columbia University
Year: 2006
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Marine geophysics
subject: Geomorphology
subject: Mid-ocean ridges

description: The Lomonosov Ridge is a band of continental crust that stretches across the Arctic Ocean and separates the Mesozoic Amerasian Basin from the Cenozoic Eurasian Basin. From about 87°N north of Greenland across the Pole to about 86°N, the Lomonosov Ridge is a single high-standing blocky ridge with minimum depths of ~ 950 - 1400 m. South of 86°N on the Siberian side, the ridge breaks up into a series of ridges spread over a width of about 200 km. In this region a high-standing blocky ridge with minimum depths of ~ 650 - 1400 m bounds the Eurasian Basin and continues to the Siberian continental margin. This ridge is continuous with the single ridge making up the Lomonosov Ridge toward North America and is the former outermost continental shelf of Eurasia bounding the Amerasian Basin. The Eurasian Basin margin of the Lomonosov Ridge consists of a series of rotated fault blocks stepping down to the basin that result from nearly orthogonal rifting to form the Eurasian Basin. No rotated fault blocks are observed on the Amerasian Basin margin of the Lomonosov Ridge. On the Amerasian Basin side, Marvin Spur, a linear ridge separated from Lomonosov Ridge by a deep basin, parallels Lomonosov Ridge on the North American side of the pole. At the bend in the Lomonosov Ridge near the North Pole, Marvin Spur continues along strike across the Makarov Basin. South of 86°N toward Siberia, a continuous outer ridge makes up the Amerasian Basin edge of the Lomonosov complex with a series of basins and ridges between it and the former Eurasian shelf. The outer ridge marks an abrupt boundary between the Lomonosov Ridge complex and the apparently oceanic crust of the Makarov Basin. The outer ridge and Marvin Spur very closely follow small circles about a pole located on the Mackenzie delta. The observed structure on the Amerasian Basin side of the Lomonosov Ridge is analogous to that observed at well-studied shear margins and supports rotational models for the development of the Amerasian Basin.
SIMPÓSIO “PROFECIA E LIBERDADE EM D. ANTÓNIO FERREIRA GOMES” – Actas. Lisboa: Ajuda à Igreja que Sofre, 2000
Creators: name: Abreu, Paulo
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
The functional significance and evolution of the coronary circulation in sharks
Creators: name: Cox, Georgina Kimberly
Publisher: name: University of British Columbia
Year: 2016

description: The coronary circulation first appeared in the chordate lineage in cartilaginous fishes where it perfuses the entire myocardium, just like in birds and mammals but unlike in most teleost fishes. Yet, despite the pivotal position of elasmobranchs in the evolution of the coronary oxygen supply, the functional significance of their coronary circulation has never been investigated. Elasmobranchs are of special interest because of the morphological arrangement of their cardiomyocytes, which has resulted in the majority of the ventricular myocardium having access to oxygen from both a coronary supply and the venous blood returning to the heart. In order to determine the relative contribution of the coronary oxygen supply to cardiovascular function, I measured coronary blood flow (CBF) in the sandbar shark, Carcharhinus plumbeus, and leopard shark, Triakis semifasciata, while manipulating cardiovascular status using pharmacological approaches and in vivo temperature changes, respectively. By exploring inter- and intra-individual variation in cardiovascular variables I show that coronary blood flow is directly related to heart rate in both bradycardic (R²= 0.6, P <0.001) and trachycardic (R²= 0.8, P <0.001) states, as it is in mammalian hearts. I suggest that changes in heart rate are related to changes in coronary vascular resistance in elasmobranchs. As I found that 3-4% of cardiac output is directed towards the myocardium (~0.07% of body mass), a methodology was developed to quantify the degree of the coronary vascularization within the spongy and compact tissues of the shark myocardium. Using this methodology, coronary vascularity and vessel morphology of six species of shark were compared to explore the functional relationships between coronary morphology and physiological phenotypes across species. I further determined that the coronary circulation showed evidence of having evolved in response to different thermal regimes across species. Together the results of this thesis show that the coronary circulation in sharks plays a crucial role in myocardial oxygen delivery to the entire heart, something not previously appreciated, and that habitat temperature plays a role as a selective agent in shaping coronary morphology.
GOMES, António Ferreira, bispo – Homilias da paz (1970-1982). Porto: Fundação Spes, 1999
Creators: name: Abreu, Paulo
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Global surfaces of section in the planar restricted 3-body problem
Creators: name: Albers, Peter
name: Fish, Joel W.
name: Frauenfelder, Urs
name: Hofer, Helmut
name: van Koert, Otto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The restricted planar three-body problem has a rich history, yet many unanswered questions still remain. In the present paper we prove the existence of a global surface of section near the smaller body in a new range of energies and mass ratios for which the Hill's region still has three connected components. The approach relies on recent global methods in symplectic geometry and contrasts sharply with the perturbative methods used until now.
description: 11 pages, 1 figure
Central anomaly magnetization high: constraints on the volcanic construction and architecture of seismic layer 2A at a fast-spreading mid-ocean ridge, the EPR at 9º30'–50'N
Creators: name: Schouten, Hans
name: Tivey, Maurice A.
name: Fornari, Daniel J.
name: Cochran, James R.
Publisher: name: Columbia University
Year: 1999
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Marine geophysics
subject: Geomorphology
subject: Geology, Stratigraphic
subject: Magnetic anomalies
subject: Mid-ocean ridges

description: The central anomaly magnetization high (CAMH) is a zone of high crustal magnetization centered on the axis of the East Pacific Rise (EPR) and many other segments of the global mid-ocean ridge (MOR). The CAMH is thought to reflect the presence of recently emplaced and highly magnetic lavas. Forward models show that the complicated character of the near-bottom CAMH can be successfully reproduced by the convolution of a lava deposition distribution with a lava magnetization function that describes the variation in lava magnetization intensity with age. This lava magnetization function is the product of geomagnetic paleofield intensity, which has increased by a factor of 2 over the last 40 kyr, and low-temperature alteration, which decreases the remanence of lava with exposure to seawater. The success of the forward modeling justifies the inverse approach: deconvolution of the magnetic data for lava distribution and integration of that distribution for magnetic layer thickness. This approach is tested on two near-bottom magnetic profiles AL2767 and AL2771, collected using Alvin across the EPR axis at 9º31'N and 9º50'N. Our analysis of these data produces an estimate of the relative thickness of the magnetic lava layer, which is remarkably consistent with existing multichannel estimates of layer 2A thickness from lines CDP31 and CDP27. The similarity between magnetic layer and seismic layer 2A at the 9º–10ºN segment of the EPR crest provides independent support to the notion that seismic layer 2A in young oceanic crust represents the highly magnetic lava layer, and that the velocity gradient at the base of layer 2A is related to the increasing number of higher velocity dikes with depth in the lava–dike transition zone. The near-bottom magnetic anomaly character of the CAMH is a powerful indicator of the emplacement history of upper crust at MORs which allows prediction of the relative thickness and architecture of the extrusive lavas independent of other constraints
Water ice in the dark dune spots of Richardson crater on Mars
Creators: name: Kereszturi, A.
name: Vincendon, M.
name: Schmidt, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geophysics (physics.geo-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this study we assess the presence, nature and properties of ices - in particular water ice - that occur within these spots using HIRISE and CRISM observations, as well as the LMD Global Climate Model. Our studies focus on Richardson crater (72°S, 179°E) and cover southern spring and summer (LS 175° - 17 341°). Three units have been identified of these spots: dark core, gray ring and bright halo. Each unit show characteristic changes as the season progress. In winter, the whole area is covered by CO2 ice with H2O ice contamination. Dark spots form during late winter and early spring. During spring, the dark spots are located in a 10 cm thick depression compared to the surrounding bright ice-rich layer. They are spectrally characterized by weak CO2 ice signatures that probably result from spatial mixing of CO2 ice rich and ice free regions within pixels, and from mixing of surface signatures due to aerosols scattering. The bright halo shaped by winds shows stronger CO2 absorptions than the average ice covered terrain, which is consistent with a formation process involving CO2 re-condensation. According to spectral, morphological and modeling considerations, the gray ring is composed of a thin layer of a few tens of μm of water ice. Two sources/processes could participate to the enrichment of water ice in the gray ring unit: (i) water ice condensation at the surface in early fall (prior to the condensation of a CO2 rich winter layer) or during winter time (due to cold trapping of the CO2 layer); (ii) ejection of dust grains surrounded by water ice by the geyser activity responsible for the dark spot. In any case, water ice remains longer in the gray ring unit after the complete sublimation of the CO2. Finally, we also looked for liquid water in the near-IR CRISM spectra using linear unmixing modeling but found no conclusive evidence for it.
LINDA, Manuel da Silva Rodrigues – Andragogia política em D. António Ferreira Gomes. Porto: Fundação Spes, 1999
Creators: name: Abreu, Paulo
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Crossovers between superconducting symmetry classes
Creators: name: Koziy, V. A.
name: Skvortsov, M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the average density of states in a small metallic grain coupled to two superconductors with the phase difference $π$, in a magnetic field. The spectrum of the low-energy excitations in the grain is described by the random matrix theory whose symmetry depends on the magnetic field strength and coupling to the superconductors. In the limiting cases, a pure superconducting symmetry class is realized. For intermediate magnetic fields or couplings to the superconductors, the system experiences a crossover between different symmetry classes. With the help of the supersymmetric sigma-model we derive the exact expressions for the average density of states in the crossovers between the symmetry classes A-C and CI-C.
description: 6 pages
title: Laser spectroscopy of the 2S1/2−2P1/2 , 2P3/2 transitions in stored and cooled relativistic C3+ ions
Creators: name: Winzen, D.
name: Hannen, V.
name: Bussmann, M.
name: Buß, A.
name: Egelkamp, C.
name: Eidam, L.
name: Huang, Z.
name: Kiefer, D.
name: Klammes, S.
name: Kühl, Th.
name: Löser, Markus
name: Ma, X.
name: Nörtershäuser, Wilfried
name: Ortjohann, H.‑W.
name: Sánchez, R.
name: Siebold, M.
name: Stöhlker, Thomas
name: Ullmann, J.
name: Vollbrecht, J.
name: Walther, Th.
name: Wang, H.
name: Weinheimer, Christian
name: Winters, D. F. A.
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 530 Physics

description: The 2S1/2−2P1/2 and 2S1/2−2P3/2 transitions in Li-like carbon ions stored and cooled at a velocity of β≈0.47 in the experimental storage ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths were obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry has been resolved and agreement between experiment and theory is confirmed.
description: Finanziert über die DEAL-Vereinbarung mit Wiley 2019-2022.
CARDOSO, Manuel Pedro – Por vilas e cidades: notas para a história do protestantismo em Portugal. Lisboa: Seminário Evangélico de Teologia, 1998. 145 p.
Creators: name: Santos, Luís Aguiar
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Type II Radio Emission and Solar Particle Observations
Creators: name: Kuznetsov, S. N.
name: Kurt, V. G.
name: Yushkov, B.
name: Yu, B.
name: Myagkova, I. N.
name: Kudela, K.
name: Belov, A. V.
name: Caroubalos, C.
name: Hilaris, A.
name: Mavromichalaki, H.
name: Moussas, X.
name: Preka-Papadema, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The 28 October 2003 flare gave us the unique opportunity to compare the acceleration time of high-energy protons with the escaping time of those particles which have been measured onboard spacecraft and by neutron monitors network as GLE event. High-energy emission time scale and shock wave height and velocity time dependencies were also studied.
description: International Journal of Modern Physics A, Volume 20, Issue 29, pp. 6705-6707 (2005)
Northern Red Sea: Nucleation of an oceanic spreading center within a continental rift
Creators: name: Cochran, James R.
Publisher: name: Columbia University
Year: 2005
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Marine geophysics
subject: Rifts (Geology)
subject: Geomorphology
subject: Sea-floor spreading

description: The northern Red Sea is an amagmatic continental rift in which an oceanic spreading center is beginning to develop. A new compilation of marine geophysical data permits delineation of the structure of the northern Red Sea and of the manner in which the transition from continental to oceanic extension is occurring in this rift. The margins of the northern Red Sea are formed by large, apparently active faults on the seaward edge of the narrow continental shelves. The morphology of the main trough is a series of terraces stepping down to an axial depression. The terraces are a subdued expression of the basement structure, which consists of a series of large rotated fault blocks. The axial depression is an often fault-bounded axis of deep water that extends south from the Suez triple junction. The rift is segmented along-strike by through-going accommodation zones spaced at 40–60 km intervals along the rift. In the main trough, accommodation zones truncate or offset rift-parallel bathymetric and gravity features. The axial depression consists of a series of discrete depressions offset from each other and separated by slightly shallower areas corresponding to accommodation zones. Within each segment, the axial depression deepens away from the accommodation zones toward a small deep, a few kilometers across and a few hundred meters deeper than the surrounding seafloor. A pair of small volcanoes is perched on top of the scarps bounding the axial depression on either side of the deep within each segment. The volcanoes are all normally magnetized and interpreted as very young. The crust is uniformly thin (5–8.5 km) throughout the main trough, implying extension evenly spread across the rift through much of its development. As extension recently became concentrated at the axis, melt began to be generated and is focused to a location within the segment where it ascends along faults bounding the axial depression to form the pair of volcanoes flanking the axis. A volcano is also found on the floor of the axial depression in one segment. This isolated volcano appears to be the first step in the development of the seafloor spreading cells that are observed in the central Red Sea. The individual cells then grow and coalesce to become a continuous spreading axis.
NEWSERA Policy Brief 2 (D5.4)
Creators: name: Magalhães, Joana
name: Leguina, Leire
name: Elorza, Ana
name: Lacunza, Izaskun
name: Luís, Cristina
name: Marin-González, Esther
name: Pelacho, Maite
name: Giardullo, Paolo
name: Citarella, Maria Angela
name: Tola, Elisabetta
name: Arias, Rosa
Publisher: name: Zenodo
Year: 2023
Subjects: policy brief; science communication; citizen science

description: NEWSERA aims to show the virtues of CS as an inclusive, broad and powerful science communication mechanism that increases trust in science communication and, in turn, in science overall, while opening up science and innovation to society, raising awareness and knowledge in science, and reducing the chances of incurring in fake news, by means of promoting critical thinking. NEWSERA Policy brief 2 assesses the main findings and impacts from the NEWSERA project as well as policy recommendations in science communication of citizen science initiatives addressing different stakeholders of the quadruple helix innovation model, more specifically the public sector and policy makers.
Trauma and transitional justice in Guatemala : how conceptions of trauma inform transitional justice practices
Creators: name: John, Gabrielle
Publisher: name: University of British Columbia
Year: 2016

description: The concept of trauma has been playing an increasing role in contemporary culture and politics, and more nuanced understandings of this concept have begun to slowly influence conversations around identity and historical memory in the transitional justice literature. This thesis explores psychobiological, historical and cultural/social forms of trauma, considering the relationship between these forms of trauma and mainstay transitional justice mechanisms. It examines the differences that emerge in how civil society and government actors in Guatemala understand the concept of trauma and the bearing this has on the transitional justice mechanisms they view as necessary to address the country’s violent past. This data was gathered via eight semi-structured interviews in Guatemala with four members of civil society and four government actors and a critical narrative analysis was used to uncover the connections between participant conceptions of trauma and views of transitional justice mechanisms implemented throughout the country. Specifically, this thesis asks how participants understand trauma and to what extent this understanding informs their views of transitional justice in Guatemala. It identifies key differences between civil society and government conceptions of trauma and the way in which these conceptions inform their approaches to transitional justice. These differences serve to highlight the importance of actively including civil society in the design and implementation of transitional justice mechanisms.
ARAÚJO, Ana Cristina – A morte em Lisboa: atitudes e representações (1700-1830). Lisboa: Editorial Notícias, 1997; CATROGA, Fernando – O céu da memória: cemitério romântico e culto cívico dos mortos em Portugal, 1756-1911. Coimbra: Minerva, 1999
Creators: name: Reis, Bruno Cardoso
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
LOPES, António – Vieira, o Encoberto: 74 anos de evolução da sua utopia. Cascais: Principia, 1999. 285 p.
Creators: name: Pereira, Zélia
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Electrically Millicharged Neutrino in Media
Creators: name: Balantsev, I.
name: Studenikin, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: On the basis of nonzero neutrino electromagnetic properties, we consider a problem of electrically millicharged neutrino energy spectra in a magnetized matter. It is shown that in this case neutrino energies are quantized. These phenomena can be important for astrophysical applications.
description: partially based on two talks presented at the XXIV International Conference on Neutrino Physics and Astrophysics (14-19 June 2010, Athens, Greece)
SILVA, Carlos [et. al.] – Martinho Lutero: diálogo e modernidade. Prefácio de Frei Bento Domingues. Lisboa: Ed. Universitárias Lusófonas, 1999. 164 p.
Creators: name: Pinto, Paulo Mendes
Publisher: name: Lusitania Sacra
Year: 2000

description: Lusitania Sacra, n. 12 (2000): Protestantismo e Catolicismo em Portugal nos Séculos XIX e XX
Topoisomer Differentiation of Molecular Knots by FTICR MS: Lessons from Class II Lasso Peptides
Creators: name: Zirah, Séverine
name: Afonso, Carlos
name: Linne, Uwe
name: Knappe, Thomas A
name: Marahiel, Mohamed A
name: Rebuffat, Sylvie
name: Tabet, Jean-Claude
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Lasso peptides constitute a class of bioactive peptides sharing a knotted structure where the C-terminal tail of the peptide is threaded through and trapped within an N-terminalmacrolactamring. The structural characterization of lasso structures and differentiation from their unthreaded topoisomers is not trivial and generally requires the use of complementary biochemical and spectroscopic methods. Here we investigated two antimicrobial peptides belonging to the class II lasso peptide family and their corresponding unthreaded topoisomers: microcin J25 (MccJ25), which is known to yield two-peptide product ions specific of the lasso structure under collisioninduced dissociation (CID), and capistruin, for which CID does not permit to unambiguously assign the lasso structure. The two pairs of topoisomers were analyzed by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICR MS) upon CID, infrared multiple photon dissociation (IRMPD), and electron capture dissociation (ECD). CID and ECDspectra clearly permitted to differentiate MccJ25 from its non-lasso topoisomer MccJ25-Icm, while for capistruin, only ECD was informative and showed different extent of hydrogen migration (formation of c\bullet/z from c/z\bullet) for the threaded and unthreaded topoisomers. The ECD spectra of the triply-charged MccJ25 and MccJ25-lcm showed a series of radical b-type product ions ðb0InÞ. We proposed that these ions are specific of cyclic-branched peptides and result from a dual c/z\bullet and y/b dissociation, in the ring and in the tail, respectively. This work shows the potentiality of ECD for structural characterization of peptide topoisomers, as well as the effect of conformation on hydrogen migration subsequent to electron capture.
Cretaceous mantle of the Congo craton : evidence from mineral and fluid inclusions in Kasai alluvial diamonds
Creators: name: Kosman, Charles Walter
Publisher: name: University of British Columbia
Year: 2016

description: Alluvial diamonds from the Kasai River, Katanga Province, Democratic Republic of the Congo (DRC), were studied in order to constrain the composition, thermal state, and diamond forming fluids of the ancient lithospheric mantle of the Congo craton. The diamonds originate from Cretaceous kimberlites of the Lucapa graben in northeastern Angola. We report carbon isotope compositions (δ¹³CVPDB), nitrogen concentrations ([N]), and nitrogen aggregation states of 138 diamonds, as well as compositions of mineral and fluid inclusions in the diamonds. Diamonds emplaced by kimberlites of the northeastern Lucapa graben and eroded into alluvials along the Kasai river contain 25–2900 ppm [N], show 0–88% N aggregation and δ¹³C isotopic compositions spanning -27‰ to -2‰ with a mode near mantle-like values. In situ cathodoluminescence (CL), secondary ion mass spectrometry (SIMS) and Fourier transform infrared spectroscopy (FTIR) reveal large heterogeneities in [N], N aggregation and δ¹³C, indicating diamonds grew episodically from fluids of distinct sources. Fluid inclusion compositions of fibrous diamonds analyzed by electron probe microanalysis are moderately to highly silicic, matching compositions of diamond-forming fluids from other DRC diamonds. Regional homogeneity of Congo fibrous diamond fluid inclusion compositions suggests spatially extensive homogenization of Cretaceous diamond forming fluids within the Congo lithospheric mantle. Electron probe microanalysis (EPMA) of trapped silicate inclusions revealed both peridotitic (Fo₉₁₋₉₅ and En₉₂₋₉₄, 78% of the suite) and eclogitic parageneses (Cr-poor pyrope and omphacite with 11–27% jadeite, 17% of the suite) within diamonds (11% remainder unknown). Clinopyroxene-garnet thermobarometry suggest diamond formation at 1350–1375 °C, whereas [N] aggregation thermometry yields diamond residence temperatures between 1000 and 1275 °C, if the assumed residence time is 0.9–3.3 Ga. Integrated geothermobaromtery indicates heat fluxes of 41–45 mW/m² during diamond formation and a shallow lithosphere-asthenosphere boundary (LAB) 175–189 km. The shallow LAB may result from a higher than average cratonic geotherms and the position of the Kasai block near the Congo cratonic margin. The hotter mantle may be attributable to contemporaneous rifting of the southern Atlantic, multiple post-Archean reactivations of the craton, and/or proximal Cretaceous plumes.
Interference Phenomena in Medium Induced Radiation
Creators: name: Casalderrey-Solana, Jorge
name: Iancu, Edmond
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the interference pattern for the medium-induced gluon radiation produced by a color singlet quark-antiquark antenna embedded in a QCD medium with size $L$ and `jet quenching' parameter $\hat q$. Within the BDMPS-Z regime, we demonstrate that, for a dipole opening angle $θ_{q\bar q} \ggθ_c\equiv {2}/{\sqrt{\hat q L^3}}$, the interference between the medium--induced gluon emissions by the quark and the antiquark is suppressed with respect to the direct emissions. This is so since direct emissions are delocalized throughout the medium and thus yield contributions proportional to $L$ while interference occurs only between emissions at early times, when both sources remain coherent. Thus, for $\tqq \ggθ_c$, the medium-induced radiation is the sum of the two spectra individually produced by the quark and the antiquark, without coherence effects like angular ordering. For $\tqq \llθ_c$, the medium--induced radiation vanishes.
description: 4 pages, 2 figures; Proceedings of the "Quark Matter 2011" conference
From chemical Langevin equations to Fokker-Planck equation: application of Hodge decomposition and Klein-Kramers equation
Creators: name: Mu, Weihua
name: Li, Xiaoqing
name: Ou-Yang, Zhongcan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The stochastic systems without detailed balance are common in various chemical reaction systems, such as metabolic network systems. In studies of these systems, the concept of potential landscape is useful. However, what are the sufficient and necessary conditions of the existence of the potential function is still an open problem. Use Hodge decomposition theorem in differential form theory, we focus on the general chemical Langevin equations, which reflect complex chemical reaction systems. We analysis the conditions for the existence of potential landscape of the systems. By mapping the stochastic differential equations to a Hamiltonian mechanical system, we obtain the Fokker-Planck equation of the chemical reaction systems. The obtained Fokker-Planck equation can be used in further studies of other steady properties of complex chemical reaction systems, such as their steady state entropies.
description: 6 pages, 0 figure, submitted to J. Phys. A: Math. Theor