cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Testing the microstructure of $d$-dimensional charged Gauss-Bonnet anti-de Sitter black holes
Creators: name: Wei, Shao-Wen
name: Liu, Yu-Xiao
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Understanding black hole microstructure via the thermodynamic geometry can provide us with more deeper insight into black hole thermodynamics in modified gravities. In this paper, we study the black hole phase transition and Ruppeiner geometry for the $d$-dimensional charged Gauss-Bonnet anti-de Sitter black holes. The results show that the small-large black hole phase transition is universal in this gravity. By reducing the thermodynamic quantities with the black hole charge, we clearly exhibit the phase diagrams in different parameter spaces. Of particular interest is that the radius of the black hole horizon can act as the order parameter to characterize the black hole phase transition. We also disclose that different from the five-dimensional neutral black holes, the charged ones allow the repulsive interaction among its microstructure for small black hole of higher temperature. Another significant difference between them is that the microscopic interaction changes during the small-large black hole phase transition for the charged case, where the black hole microstructure undergoes a sudden change. These results are helpful for peeking into the microstructure of charged black holes in the Gauss-Bonnet gravity.
description: 18 pages, 15 figures, and 3 tables
Low Noise Amplifiers at 67 – 116 GHz
Creators: name: George, Danielle
Publisher: name: Zenodo
Year: 2019

description: The research of the Advanced Radio Instrumentation Group (ARIG) is focused on the design and development of low noise amplifiers (LNAs) and front-end receiver instrumentation, primarily for use in astronomical instrumentation, often operating at cryogenic temperatures to minimise their noise contribution. Advances in
materials, design and fabrication technology has now allowed LNAs to become competitive with other technologies, such as SIS mixers, at frequencies beyond 100 GHz. Through the ALMA Band 2+3 project we have shown that recent technological developments in cryogenic monolithic microwave integrated circuit (MMIC) high electron mobility transistor (HEMT) amplifiers provide an opportunity to extend the originally planned onsky bandwidth, combining ALMA Bands 2 and 3 into one receiver cartridge covering 67-116 GHz.
We will discuss the recent advancements in our ALMA 2+3 LNAs, both MMICs and packaged LNAs using stateof-the-art technology. The packaged LNAs have been characterised at room temperature and cryogenic ambient temperature of 20 K for S-parameter and noise performance. We will also show recent developments in MMIC designs with measured optimum performance around 80 GHz.
Siegfried Tornow, Handbuch der Text- und Sozialgeschichte Osteuropas. Von der Spätantike bis zum Nationalstaat
Creators: name: Ibler, Reinhard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 3 (2013): Fear and Fascination: War, Enemies, and the Other in the Soviet Bloc through the 1950s
X-ray flares on the UV Ceti-type star CC Eridani: a "peculiar" time-evolution of spectral parameters
Creators: name: Crespo-Chacón, I.
name: Micela, G.
name: Reale, F.
name: Caramazza, M.
name: López-Santiago, J.
name: Pillitteri, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: Weak flares are supposed to be an important heating agent of the outer layers of stellar atmospheres. However, due to instrumental limitations, only large X-ray flares have been studied in detail until now. Aims: We used an XMM-Newton observation of the very active BY-Dra type binary star CC Eri in order to investigate the properties of two flares that are weaker than those typically studied in the literature. Methods: We performed time-resolved spectroscopy of the data taken with the EPIC-PN CCD camera. A multi-temperature model was used to fit the spectra. We inferred the size of the flaring loops using the density-temperature diagram. The loop scaling laws were applied for deriving physical parameters of the flaring plasma. We also estimated the number of loops involved in the observed flares. Results: A large X-ray variability was found. Spectral analysis showed that all the regions in the light curve, including the flare segments, are well-described by a 3-T model with variable emission measures but, surprisingly, with constant temperatures (values of 3, 10 and 22 MK). The analysed flares lasted ~ 3.4 and 7.1 ks, with flux increases of factors 1.5-1.9. They occurred in arcades made of a few tens of similar coronal loops. The size of the flaring loops is much smaller than the distance between the stellar surfaces in the binary system, and even smaller than the radius of each of the stars. The obtained results are consistent with the following ideas: (i) the whole X-ray light curve of CC Eri could be the result of a superposition of multiple low-energy flares, and (ii) stellar flares can be scaled-up versions of solar flares.
description: 14 pages, 12 figures. Accepted for publication in Astronomy & Astrophysics
Päpstliche und kaiserliche Machtansprüche im livländischen Kreuzzugsgebiet im 13. Jahrhundert
Creators: name: Mäesalu, Mihkel
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 3 (2013): Fear and Fascination: War, Enemies, and the Other in the Soviet Bloc through the 1950s
Transition states in protein folding kinetics: Modeling Phi-values of small beta-sheet proteins
Creators: name: Weikl, Thomas R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Small single-domain proteins often exhibit only a single free-energy barrier, or transition state, between the denatured and the native state. The folding kinetics of these proteins is usually explored via mutational analysis. A central question is which structural information on the transition state can be derived from the mutational data. In this article, we model and structurally interpret mutational Phi-values for two small beta-sheet proteins, the PIN and the FBP WW domain. The native structure of these WW domains comprises two beta-hairpins that form a three-stranded beta-sheet. In our model, we assume that the transition state consists of two conformations in which either one of the hairpins is formed. Such a transition state has been recently observed in Molecular Dynamics folding-unfolding simulations of a small designed three-stranded beta-sheet protein. We obtain good agreement with the experimental data (i) by splitting up the mutation-induced free-energy changes into terms for the two hairpins and for the small hydrophobic core of the proteins, and (ii) by fitting a single parameter, the relative degree to which hairpin 1 and 2 are formed in the transition state. The model helps to understand how mutations affect the folding kinetics of WW domains, and captures also negative Phi-values that have been difficult to interpret.
description: 27 pages, 6 pages, 3 tables; to appear in Biophys. J
Ser médico – uma vocação ou um prestígio. Análise das razões de opção dos candidatos ao curso de medicina na Universidade Agostinho Neto
Creators: name: Afonso Dias Monteiro, Maria Fernanda
name: Miguel André, António
name: Ferraz Loureiro Carteado, Elizabete Maria
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
D and D_s in mass loaded flux tube
Creators: name: Shan, Hong-Yun
name: Zhang, Ailin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Heavy-light hadrons are studied in a mass loaded flux tube model. The study indicates that the dynamics of mesons and baryons containing a $c$ quark is well described by the mass loaded flux tube. The hypothesis of good diquark-antiquark degeneracy is found reasonable in heavy-light quark systems. The spectrum of charmed ($D$) and charmed strange ($D_s$) mesons is systematically computed. $D$ and $D_s$ in 1D multiplets are predicted to have lower masses in comparison with other theoretical predictions. The predicted masses of the $1^-(1^3D_1)$ and the $3^-(1^3D_3)$ $D_s$ agree well with those of recently observed $D_{s1}(2700)^{\pm}$ and $D_{sJ}(2860)$, respectively.
description: 5 pages, 2 tables, RevTex, some references added and some typos corrected
Ética em Obstetrícia: a comunicação da histerectomia de urgência
Creators: name: Lima Pinheiro, Maria De Deus
name: Adão De Campos, Paulo
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Detlef Brandes, Alena Míšková, Vom Osteuropa-Lehrstuhl ins Prager Rathaus. Josef Pfitzner 1901-1945
Creators: name: Abel, Esther
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2014

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 63 Nr. 4 (2014)
Kinetic Monte Carlo Studies of Hydrogen Abstraction from Graphite
Creators: name: Cuppen, H. M.
name: Hornekaer, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Astrophysics (astro-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present Monte Carlo simulations on Eley-Rideal abstraction reactions of atomic hydrogen chemisorbed on graphite. The results are obtained via a hybrid approach where energy barriers derived from density functional theory calculations are used as input to Monte Carlo simulations. By comparing with experimental data, we discriminate between contributions from different Eley-Rideal mechanisms. A combination of two different mechanisms yields good quantitative and qualitative agreement between the experimentally derived and the simulated Eley-Rideal abstraction cross sections and surface configurations. These two mechanisms include a direct Eley-Rideal reaction with fast diffusing H atoms and a dimer mediated Eley-Rideal mechanism with increased cross section at low coverage. Such a dimer mediated Eley-Rideal mechanism has not previously been proposed and serves as an alternative explanation to the steering behavior often given as the cause of the coverage dependence observed in Eley-Rideal reaction cross sections.
description: 14 pages, 11 figures
Topological charge density waves at half-integer filling of a moiré superlattice
Creators: name: Polshyn, Hryhoriy
name: Zhang, Yuxuan
name: Kumar, Manish A.
name: Soejima, Tomohiro
name: Ledwith, Patrick
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Vishwanath, Ashvin
name: Zaletel, Michael P.
name: Young, Andrea F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: At partial filling of a flat band, strong electronic interactions may favor gapped states harboring emergent topology with quantized Hall conductivity. Emergent topological states have been found in partially filled Landau levels and Hofstadter bands; in both cases, a large magnetic field is required to engineer the underlying flat band. The recent observation of quantum anomalous Hall effects (QAH) in narrow band moiré systems has led to the theoretical prediction that such phases may be realized even at zero magnetic field. Here we report the experimental observation of insulators with Chern number $C=1$ in the zero magnetic field limit at $ν=3/2$ and $7/2$ filling of the moiré superlattice unit cell in twisted monolayer-bilayer graphene (tMBG). Our observation of Chern insulators at half-integer values of $ν$ suggests spontaneous doubling of the superlattice unit cell, in addition to spin- and valley-ferromagnetism. This is confirmed by Hartree-Fock calculations, which find a topological charge density wave ground state at half filling of the underlying $C=2$ band, in which the Berry curvature is evenly partitioned between occupied and unoccupied states. We find the translation symmetry breaking order parameter is evenly distributed across the entire folded superlattice Brillouin zone, suggesting that the system is in the flat band, strongly correlated limit. Our findings show that the interplay of quantum geometry and Coulomb interactions in moiré bands allows for topological phases at fractional superlattice filling that spontaneously break time-reversal symmetry, a prerequisite in pursuit of zero magnetic field phases harboring fractional statistics as elementary excitations or bound to lattice dislocations.
description: 13 pages, 12 figures
An immunohistochemical study of the substance P neuronal system in the primate brain : basal ganglia and neocortex
Creators: name: Beach, Thomas Gerald
Publisher: name: University of British Columbia
Year: 2010

description: Using immunohistochemical methods I have studied the distribution of substance P fibers, terminals and perikarya throughout the basal ganglia and neocortex of baboons and at selected levels of the human brain. Immunoreactivity in the substantia nigra pars reticulata, internal segment of the globus pallidus and ventral pallidum was dense and of a characteristic, "woolly fiber" morphology. The caudate nucleus and putamen contained sharply circumscribed patches of dense immunoreactivity superimposed on a moderately stained background. The external division of the globus pallidus displayed very little immunoreactivity. Two morphological types of immunoreactive cell bodies were present in the caudate nucleus, putamen and nucleus accumbens, and were clustered within the dense patches. The distribution of immunoreactive perikarya within the striatum differed from that reported for rats, as stained neurons were distributed evenly throughout the rostro-caudal extent rather than being concentrated in the rostral portions. This work represents the first detailed examination of the distribution of substance P-containing neuronal structures in the primate basal ganglia. It confirms recent published reports which have shown that the striatum is not a homogeneous structure, as it has long been regarded, but is subdivided into zones with differing neuroanatomical connections and neurotransmitter content. The neocortex was not studied as intensively as the basal ganglia, but it was conclusively established that substance P-immunoreactive neurons exist throughout the neocortex.
Competência do médico em Ginecologia e Obstetrícia: visão dos médicos sobre as competências nucleares e princípios éticos
Creators: name: Da Silva Gustavo Sampaio, Maria Antónia
name: Aires Mota Mendonça Montenegro, Nuno
name: Afonso Dias Monteiro, Maria Fernanda
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Riflessi d'arte figurativa nel Fuoco di D'annunzio
Creators: name: De Lorenzo, Pierandrea
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: This article examines and compares, in the exuberant literary prose of Fuoco by Gabriele d'Annunzio, all the elements that regard the figurative  arts: from a simple allusion to a certain artist or artistic work, even  in some ways characteristic, to the pages of ekfrasis wider, to  the descriptive sections with a tone and an expressive style inclined to  a figurative representation of the landscape elements through a  "pictorial" use of the word.
description: Annali Online  Lettere - Ferrara, II 2 (2007)
Competência médica na pré-eclâmpsia leve nas unidades de assistência obstétrica de referência de Luanda: contributo para educação médica
Creators: name: De Sousa Carvalho Alves, Lígia Nazaré
name: Bernardes, João
name: Ferreira, Albano
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Realizing topologically ordered states on a quantum processor
Creators: name: Satzinger, K. J.
name: Liu, Y.
name: Smith, A.
name: Knapp, C.
name: Newman, M.
name: Jones, C.
name: Chen, Z.
name: Quintana, C.
name: Mi, X.
name: Dunsworth, A.
name: Gidney, C.
name: Aleiner, I.
name: Arute, F.
name: Arya, K.
name: Atalaya, J.
name: Babbush, R.
name: Bardin, J. C.
name: Barends, R.
name: Basso, J.
name: Bengtsson, A.
name: Bilmes, A.
name: Broughton, M.
name: Buckley, B. B.
name: Buell, D. A.
name: Burkett, B.
name: Bushnell, N.
name: Chiaro, B.
name: Collins, R.
name: Courtney, W.
name: Demura, S.
name: Derk, A. R.
name: Eppens, D.
name: Erickson, C.
name: Farhi, E.
name: Foaro, L.
name: Fowler, A. G.
name: Foxen, B.
name: Giustina, M.
name: Greene, A.
name: Gross, J. A.
name: Harrigan, M. P.
name: Harrington, S. D.
name: Hilton, J.
name: Hong, S.
name: Huang, T.
name: Huggins, W. J.
name: Ioffe, L. B.
name: Isakov, S. V.
name: Jeffrey, E.
name: Jiang, Z.
name: Kafri, D.
name: Kechedzhi, K.
name: Khattar, T.
name: Kim, S.
name: Klimov, P. V.
name: Korotkov, A. N.
name: Kostritsa, F.
name: Landhuis, D.
name: Laptev, P.
name: Locharla, A.
name: Lucero, E.
name: Martin, O.
name: McClean, J. R.
name: McEwen, M.
name: Miao, K. C.
name: Mohseni, M.
name: Montazeri, S.
name: Mruczkiewicz, W.
name: Mutus, J.
name: Naaman, O.
name: Neeley, M.
name: Neill, C.
name: Niu, M. Y.
name: O'Brien, T. E.
name: Opremcak, A.
name: Pató, B.
name: Petukhov, A.
name: Rubin, N. C.
name: Sank, D.
name: Shvarts, V.
name: Strain, D.
name: Szalay, M.
name: Villalonga, B.
name: White, T. C.
name: Yao, Z.
name: Yeh, P.
name: Yoo, J.
name: Zalcman, A.
name: Neven, H.
name: Boixo, S.
name: Megrant, A.
name: Chen, Y.
name: Kelly, J.
name: Smelyanskiy, V.
name: Kitaev, A.
name: Knap, M.
name: Pollmann, F.
name: Roushan, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The discovery of topological order has revolutionized the understanding of quantum matter in modern physics and provided the theoretical foundation for many quantum error correcting codes. Realizing topologically ordered states has proven to be extremely challenging in both condensed matter and synthetic quantum systems. Here, we prepare the ground state of the toric code Hamiltonian using an efficient quantum circuit on a superconducting quantum processor. We measure a topological entanglement entropy near the expected value of $\ln2$, and simulate anyon interferometry to extract the braiding statistics of the emergent excitations. Furthermore, we investigate key aspects of the surface code, including logical state injection and the decay of the non-local order parameter. Our results demonstrate the potential for quantum processors to provide key insights into topological quantum matter and quantum error correction.
description: 6 pages 4 figures, plus supplementary materials
"Sie ist die erste nicht". Note sulla seduzione di Margarete nel Faust di Goethe
Creators: name: Rispoli, Marco
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: The seduction of Gretchen in Goethe's Faust I is read, in this  study, as a dramatic depiction of the literary and emotional problems  related to the phenomenon of repetition. The story of a virtuous girl  seduced by a self-professed gentleman had, in the cultural context of  the late eighteenth century, a high degree of predictability, which is  often underscored in the dialogues, so that the whole episode becomes,  from a poetological point of view, a critical reflection about the quest  for an absolute originality. From a psychological point of view,  Faust's commitment to an eternal love, which is belied by his own  conduct as well as by Mephistophele's words, is an idle attempt to  escape from the repeatability of human feelings, and hence to flee from  the threat of boredom. Therefore, this episode refers also to Goethe's  own critical views about the modern search for new and extraordinary  experiences.
description: Annali Online  Lettere - Ferrara, II 2 (2007)
An effective matrix model for dynamical end of the world branes in Jackiw-Teitelboim gravity
Creators: name: Gao, Ping
name: Jafferis, Daniel Louis
name: Kolchmeyer, David K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study Jackiw-Teitelboim gravity with dynamical end of the world branes in asymptotically nearly AdS$_2$ spacetimes. We quantize this theory in Lorentz signature, and compute the Euclidean path integral summing over topologies including dynamical branes. The latter will be seen to exactly match with a modification of the SSS matrix model. The resolution of UV divergences in the gravitational instantons involving the branes will lead us to understand the matrix model interpretation of the Wilsonian effective theory perspective on the gravitational theory. We complete this modified SSS matrix model nonperturbatively by extending the integration contour of eigenvalues into the complex plane. Furthermore, we give a new interpretation of other phases in such matrix models. We derive an effective $W(Φ)$ dilaton gravity, which exhibits similar physics semiclassically. In the limit of a large number of flavors of branes, the effective extremal entropy $S_{0,\text{eff}}$ has the form of counting the states of these branes.
description: 72 pages, 23 figures
Conhecimento dos estudantes do 5º e 6º ano da Faculdade de Medicina da UAN sobre HPV e cancro do colo do útero, maio a agosto de 2012
Creators: name: Bernardo Duma, Joaquim
name: Théophile, Josenando
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Computer-assisted access to the kidney
Creators: name: Mozer, P.
name: Leroy, A.
name: Payan, Yohan
name: Troccaz, J.
name: Chartier-Kastler, E.
name: Richard, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: OBJECTIVES: The aim of this paper is to introduce the principles of computer-assisted access to the kidney. The system provides the surgeon with a pre-operative 3D planning on computed tomography (CT) images. After a rigid registration with space-localized ultrasound (US) data, preoperative planning can be transferred to the intra-operative conditions and an intuitive man-machine interface allows the user to perform a puncture. MATERIAL AND METHODS: Both CT and US images of informed normal volunteer were obtained to perform calculation on the accuracy of registration and punctures were carried out on a kidney phantom to measure the precision of the whole of the system. RESULTS: We carried out millimetric registrations on real data and guidance experiments on a kidney phantom showed encouraging results of 4.7 mm between planned and reached targets. We noticed that the most significant error was related to the needle deflection during the puncture. CONCLUSION: Preliminary results are encouraging. Further work will be undertaken to improve efficiency and accuracy, and to take breathing into account.
Pensare gli ibridi nella cultura greca: caselle opache, animali antonomasici, metafore e atteggiamenti culturali
Creators: name: Li Causi, Pietro
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Thinking of hybrids also means identifying reference cultural contexts  and seeing that the theoretical horizons and the techniques of  representation themselves can, in time, modify notions we could think as  universal. In ancient Greek language did not exist an explicit mark indicating the  hybridization phenomenon. This way, the phrases "generating in common"  or "generating from each other" (ex allelon gennan) seem to be generic and not dedicated; the word koinogenes itself, used by Plato to indicate the cross reproduction in the Politicus, seems to be a neologism that has had poor fortune in tradition. Therefore, debating upon cross-breading meant - to Greeks - dealing with loimos and contamination of species; indeed, where we see hybrids the ancients  saw, rather than crosses, blood lines which were polluted and gene  contaminated. Then, what the language accomplished was a shade line inside which human  sexual crimes - as the moicheia - became good to think of animal biology.
description: Annali Online  Lettere - Ferrara, Volume Speciale, supp. II 2 (2007)
ATM, the reference atmospheric radiative transfer model for ALMA
Creators: name: Pardo, Juan R.
Publisher: name: Zenodo
Year: 2019

description: ATM, the reference atmospheric radiative transfer model for ALMA, was developed in C++ under different ESO contracts between 2005 and 2011. It is based on previous works by J.R. Pardo and J. Cernicharo for the IRAM telescopes, and on experimental results obtained with a specially designed (by E. Serabyn) FTS installed and operated at the CSO telescope (Mauna Kea) from 1996 to 2004. Recent improvements have been introduced to this software package, along with its use to explore real atmospheric data obtained in ALMA calibration scans. This presentation will be devoted to this recent work.
Deniss Hanovs, Valdis Tēraudkalns, Ultimate Freedom - No Choice. The Culture of Authoritarianism in Latvia, 1934-1940
Creators: name: Mertelsmann, Olaf
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2014

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 63 Nr. 4 (2014)
No-Hair Theorem in the Wake of Event Horizon Telescope
Creators: name: Khodadi, Mohsen
name: Lambiase, Gaetano
name: Mota, David F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Thanks to the release of the extraordinary EHT image of shadow attributed to the M87* supermassive black hole (SMBH), we have a novel window to assess the validity of fundamental physics in the strong-field regime. Motivated by this, we consider Johannsen \& Psaltis metric parameterized by mass, spin, and an additional dimensionless hair parameter $ε$. This parametric framework in the high rotation regimes provides a well-behaved bed to the strong-gravity test of the no-hair theorem (NHT) using the EHT data. Incorporating the $ε$ into the standard Kerr spacetime enrich it in the sense that, depending on setting the positive and negative values for that, we deal with alternative compact objects: deformed Kerr naked singularity and Kerr BH solutions, respectively. Shadows associated with these two possible solutions indicate that the deformation parameter $ε$ affects the geometry shape of standard shadow such that it becomes more oblate and prolate with $ε<0$ and $ε>0$, respectively. By scanning the window associated with three shadow observables oblateness, deviation from circularity, and shadow diameter, we perform a numerical analysis within the range $a_*=0.9\mp0.1$ of the dimensionless rotation parameter, to find the constraints on the hair parameter $ε$ in both possible solutions. For both possible signs of $ε$, we extract a variety of upper bounds that are in interplay with $a_*$. Although by approaching the rotation parameters to the extreme limit, the allowable range of both hair parameters becomes narrower, the hairy Kerr BH solution is a more promising candidate to play the role of the alternative compact object instead of the standard Kerr BH. The lack of tension between hairy Kerr BH with the current observation of the EHT shadow of the M87* SMBH carries this message that there is the possibility of NHT violation.
description: 31 pages, 14 figures, v2: minorly revised, accepted for publication in JCAP
Some aspects of dominance behavior in the song sparrow, (Melospiza melodia)
Creators: name: Arcese, Peter
Publisher: name: University of British Columbia
Year: 2010

description: I studied the effect of behavioral dominance on survival and recruitment in the song sparrow (Melospiza melodia). The aims of this study were: 1) to determine if superior dominance status allows high survival and priority of access to breeding territory; 2) to measure the influence of phenotypic characters on dominance status; 3) to test the hypothesis that familiarity with a site is a prerequisite to achieving dominant status. Dominance was estimated by observing the agonistic encounters of young sparrows at feeders, and this estimate was correlated with the subsequent survival and settlement of yearlings. Correlations were also sought between dominance and several characteristics of individuals. To study site attachment, I temporarily confined 24 early-hatched birds in two groups. This allowed them experience in agonistic encounters, but prevented them from gaining site attachments until all young birds had become independent. The dominance of these captive birds was estimated after their release and compared to that of control birds. In both sexes, higher proportions of dominants survived and settled than subordinates in each year of study. Only age and sex were consistently correlated with dominance; young hatched early were dominant to those hatched later, and males were more dominant than females. Overall, age accounted for 59% of the variation in dominance. Captive males and females were as dominant as control young of equal age, and were dominant to birds hatched later. These results support the hypotheses that dominant status in song sparrows allows high survival and priority of access to a breeding territory. Natural selection should favor parents that raise many early offspring. Familiarity with a local area was not a prerequisite to achieving dominant status. The assumption that large size is advantageous in agonistic encounters was not supported by this study, and a review of the literature suggests that many studies that support this assumption are based on inadequate analyses.
La tutela giuridica degli animali, fra nuove sensibilità e vecchie insidie
Creators: name: Valastro, Alessandra
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: The intervention runs over again the tormented developments of the rule   about  the legal protection  of animals, starting from the principal stages of the scientific and  philosophical reflections upon animals' subjectivity: the discoveries  induced by ethology and animals' psychology, on the one hand, that  consented to recognise animals as centres of assignation of a sphere of  interests quantitatively and qualitatively connected with  their more or  less complex level of subjectivity; on the other hand the reflections  upon "animals' welfare" und upon "the ethics of respect" developed about  the conception of person, interest and right. Moving in this ambit we  analyse the evolution of the rules that, starting from the first  formulation of the crime of ill-treatment of animals (in the criminal  code of  1930), saw the sensibility of the legislator getting more and  more refined (thanks also to an impulse given by European Community or  international acts) with the introduction of new instruments of  protection in the different fields of utilization of animals  (experiments, breeding, slaughtering and so on); but it saw also an  enduring "habit" of compromise, in reference to the considerable  economic or simple entertaining interests that concern the human  activities where animals are used.
description: Annali Online  Lettere - Ferrara, Volume Speciale, supp. II 2 (2007)
O ensino da Anatomia Humana nas faculdades e cursos de medicina em Angola
Creators: name: Vieira Clemente, Horácio Maria
name: Teixeira De Alva Bragança Sambo, Maria Do Rosário
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Receiver development for the IRAM telescopes
Creators: name: Risacher, Christophe
Publisher: name: Zenodo
Year: 2019

description: IRAM operates several millimeter telescopes from two sites. The NOEMA interferometer located in the French Alps at 2500m with currently 10 antennas  of 15m diameter and the 30m telescope in southern Spain, Pico Veleta (3000m), observe in the 70-373 GHz frequency range.
This talk will present the current receivers status and the plans for the near and far future. In particular, we are preparing the upgrade of the current NOEMA receivers to allow interferometric dual frequency observations.  On the longer term, new generation of SIS mixers will allow extending the RF and IF bandwidths. Very large heterodyne array receivers are also under development, at 3 mm and 1.3 mm for the 30m Telescope.
A non-monotone conservation law for dune morphodynamics
Creators: name: Alibaud, Nathaël
name: Azerad, Pascal
name: Isèbe, Damien
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 47J35, 47G20, 35L65, 35B50, 45K05, 65M06

description: We investigate a non-local non linear conservation law, first introduced by A.C. Fowler to describe morphodynamics of dunes, see \cite{Fow01, Fow02}. A remarkable feature is the violation of the maximum principle, which allows for erosion phenomenon. We prove well-posedness for initial data in $L^2$ and give explicit counterexample for the maximum principle. We also provide numerical simulations corroborating our theoretical results.
description: 26 p
Effects of coalescence and isospin symmetry on the freezeout of light nuclei and their anti-particles
Creators: name: Waqas, M.
name: Peng, G. X.
name: Liu, Fu-Hu
name: Wazir, Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The transverse momentum spectra of light nuclei (deuteron, triton and helion) produced in various centrality intervals in Gold-Gold (Au-Au), Lead-Lead (Pb-Pb) and proton-Lead (p-Pb) collisions, as well as in inelastic (INEL) proton-proton (pp) collisions are analyzed by the blast wave model with Boltzmann Gibbs statistics. The model results are nearly in agreement with the experimental data measured by STAR and ALICE Collaborations in special transverse momentum ranges. We extracted the bulk properties in terms of kinetic freezeout temperature, transverse flow velocity and freezeout volume. It is observed that deuteron and anti-deuteron freezeout later than triton and helion as well as their anti-particles due to its smaller mass, while helion and triton, and anti-helion and anti-triton freezeout at the same time due to isospin symmetry at higher energies. It is also observed that light nuclei freezeout earlier than their anti-nuclei due to the large coalescence of nucleons for light nuclei compared to their anti-nuclei. The kinetic freezeout temperature, transverse flow velocity and kinetic freezeout volume decrease from central to peripheral collisions. Furthermore, the transverse flow velocity depends on mass of the particle which decreases with increasing the mass of the particle.
Dilemas éticos em Obstetrícia na Maternidade Lucrécia Paím em Luanda
Creators: name: Manuel Quinto, Francisco Adolfo
name: Chimpolo, Maria Madalena
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Single particle nonlocality with completely independent reference states
Creators: name: Cooper, J. J.
name: Dunningham, J. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a scheme to demonstrate the nonlocal properties of a single particle by showing a violation of Bell's inequality. The scheme is experimentally achievable as the only inputs are number states and mixed states, which serve as references to `keep track of the experiment'. These reference states are created completely independently of one another and correlated only after all the measurement results have been recorded. This means that any observed nonlocality must solely be due to the single particle state. All the techniques used are equally applicable to massive particles as to photons and as such this scheme could be used to show the nonlocality of atoms.
description: 10 pages, 5 figures
Neoconger hygomi Smith & Marceniuk & Rotundo & Carvalho & Caires 2024, n. sp.
Creators: name: Smith, David G.
name: Marceniuk, Alexandre P.
name: Rotundo, Matheus M.
name: Carvalho, Cintia O.
name: Caires, Rodrigo A.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Anguilliformes
Moringuidae
Neoconger
Neoconger hygomi

description: Neoconger hygomi Smith n. sp. (Figures 7, 8; Table 2)
Neoconger mucronatus (non Girard, 1858); Smith, 1989a: 60 (in part).
Study material. HOLOTYPE: ZMUC P312001 (261 mm TL), Brazil, Cotinguiba, State of Sergipe, ca. 10° 52’ S, 37° 07’ W, coll. 1857.
Diagnosis. Neoconger hygomi has more predorsal vertebrae than any other species in the genus (48 vs. maximum 45), and more preanal vertebrae (55 vs. maximum 49). The number of total vertebrae (107) is matched only by N. torrei (104–107).
Description. See genus account for general appearance. Morphometric characters in % TL: preanal 52.5, predorsal 51.7, head 10.0, depth at anus 2.1. In % HL: snout 17.7, eye 5.4, interorbital 10.8, snout-rictus 28.8, gill opening 11.9, interbranchial 18.5, pectoral fin 20.4. Meristic characters: predorsal vertebrae 48, preanal vertebrae 55, precaudal vertebrae 58, total vertebrae 107. Mandibular pores as in N. mucronatus.
Maxillary and dentary each with one row of rather large, pointed, recurved teeth.Vomer long, ending below eye, anteriorly with two rows of robust, blunt teeth (six teeth in each row) and posteriorly with four less robust teeth in one median row.
Color after many years in preservative light gray with no markings.
The only known specimen is 261 mm TL.
Distribution. The specimen was stated to come from Cotinguiba, Brazil, south of the equator and south of the so-called hump of Brazil. The precise location is uncertain. Cotinguiba refers to a small river that empties into the larger Sergipe River some 15 km from the Atlantic Ocean.
Remarks. Castro & Bonecker (2005: 8, fig. 10; 2006: 41) reported three small specimens of larval Neoconger (5.8–7.9 mm SL) from the Brazilian coast not far south of Sergipe. The specimens were too small to count the myomeres, but they are most likely N. hygomi. This suggests that the species occurs more extensively along the South Atlantic coast of Brazil.
Etymology. Named for Vilhelm Hygom, a Danish ship captain who collected oceanographic material for the Zoological Museum in Copenhagen. The name was applied to the specimen in manuscript form in the museum but never published.
description: Published as part of Smith, David G., Marceniuk, Alexandre P., Rotundo, Matheus M., Carvalho, Cintia O. & Caires, Rodrigo A., 2024, A review of the genus Neoconger (Anguilliformes: Moringuidae), with the description of a new species, pp. 109-128 in Zootaxa 5492 (1) on page 119, DOI: 10.11646/zootaxa.5492.1.6, http://zenodo.org/record/13212151
Motivos da opção laboral dos recém-licenciados no contexto do mercado de trabalho atual
Creators: name: Da Silva, Florinda
name: Mariano Manuel, Carlos
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Orders and Polytropes: Matrix Algebras from Valuations
Creators: name: Maazouz, Yassine El
name: Hahn, Marvin Anas
name: Nebe, Gabriele
name: Stanojkovski, Mima
name: Sturmfels, Bernd
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We apply tropical geometry to study matrix algebras over a field with valuation. Using the shapes of min-max convexity, known as polytropes, we revisit the graduated orders introduced by Plesken and Zassenhaus. These are classified by the polytrope region. We advance the ideal theory of graduated orders by introducing their ideal class polytropes. This article emphasizes examples and computations. It offers first steps in the geometric combinatorics of endomorphism rings of configurations in affine buildings.
description: 14 pages
Bound states in N=2 Liouville theory with boundary and Deep throat D-branes
Creators: name: Benichou, Raphael
name: Troost, Jan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We exhibit bound states in the spectrum of non-compact D-branes in N=2 Liouville conformal field theory. We interpret these states in the study of D-branes in the near-horizon limit of Neveu-Schwarz five-branes spread on a topologically trivial circle. We match semi-classical di-electric and repulsion effects with exact conformal field theory results and describe the fate of D-branes hitting NS5-branes. We also show that the bound states can give rise to massless vector and hyper multiplets in a low-energy gauge theory on D-branes deep inside the throat.
description: 45 pages, 11 figures, references added, JHEP version
The nature of the SDSS galaxies in various classes based on morphology, colour and spectral features -- I. Optical properties
Creators: name: Lee, Joon Hyeop
name: Lee, Myung Gyoon
name: Park, Changbom
name: Choi, Yun-Young
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comprehensive study of the nature of the SDSS galaxies divided into various classes based on their morphology, colour, and spectral features. The SDSS galaxies are classified into early-type and late-type; red and blue; passive, HII, Seyfert, and LINER, returning a total of 16 fine classes of galaxies. We examine the luminosity dependence of seven physical parameters of galaxies in each class. We find that more than half of red early-type galaxies (REGs) have star formation or AGN activity, and that these active REGs have smaller axis ratio and bluer outside compared to the passive REGs. Blue early-type galaxies (BEGs) show structural features similar to those of REGs, but their centres are bluer than REGs. HII BEGs are found to have bluer centres than passive BEGs, but HII REGs have bluer outside than passive REGs. Bulge-dominated late-type galaxies have red colours. Passive red late-types are similar to REGs in several aspects. Most blue late-type galaxies (BLGs) have forming stars, but a small fraction of BLGs do not show evidence for current star formation activity. Differences of other physical parameters among different classes are inspected, and their implication on galaxy evolution is discussed.
description: 16 pages, 10 tables, 16 figures; accepted for publication in MNRAS
A Robust And Fast Algorithm For ALMA Local Oscillator Power Amplifiers Optimization
Creators: name: Siringo, Giorgio
Publisher: name: Zenodo
Year: 2019

description: I present here a new algorithm for the optimization of the local oscillator power amplifiers of all receivers in use at ALMA. The configuration of ALMA receivers (SIS mixers) is done by applying frequency-dependent predefined values of voltage and current extracted from a look-up table. The bias voltage is applied to the mixer by the bias voltage controller. The bias current, instead, is optimized indirectly by adjusting the power from the local oscillator. The algorithm presented here is able to guarantee fast and reliable optimization even with noisy control and response variables. This new algorithm has been implemented in the ALMA main control software starting from Cycle-5 (October 2017).
Maik Schmerbauch, Die Seelsorge für die deutschen Katholiken in der polnischen Diözese Kattowitz und das Diözesanblatt „Der Sonntagsbote“ in den Jahren 1925-1939/41
Creators: name: Linek, Bernard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2014

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 63 Nr. 4 (2014)
Ensino de Farmacologia nas faculdades de medicina em Angola
Creators: name: Paulo Kuatoko, Fernando
name: Santos Morais, Nicolau
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Adaptação académica de estudantes do curso de medicina da Faculdade de Medicina da Universidade da Agostinho Neto: contributos para o gabinete de apoio ao estudante
Creators: name: Vaz Tomás Zassala, Evódia
name: Martins Da Silva Calçada Bastos, Maria Alice
name: Da Silva, Florinda
Publisher: name: Anais do Instituto de Higiene e Medicina Tropical
Year: 2021

description: .
description: Anais do Instituto de Higiene e Medicina Tropical, v. 20 (2021): Suplemento nº 1 - Perspetivas sobre a educação médica em Angola
Standard-smooth hybrid inflation
Creators: name: Lazarides, G.
name: Vamvasakis, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the extended supersymmetric Pati-Salam model which, for mu>0 and universal boundary conditions, succeeds to yield experimentally acceptable b-quark masses by moderately violating Yukawa unification. It is known that this model can lead to new shifted or new smooth hybrid inflation. We show that a successful two-stage inflationary scenario can be realized within this model based only on renormalizable superpotential interactions. The cosmological scales exit the horizon during the first stage of inflation, which is of the standard hybrid type and takes place along the trivial flat direction with the inflaton driven by radiative corrections. Spectral indices compatible with the recent data can be achieved in global supersymmetry or minimal supergravity by restricting the number of e-foldings of our present horizon during the first inflationary stage. The additional e-foldings needed for solving the horizon and flatness problems are naturally provided by a second stage of inflation, which occurs mainly along the built-in new smooth hybrid inflationary path appearing right after the destabilization of the trivial flat direction at its critical point. Monopoles are formed at the end of the first stage of inflation and are, subsequently, diluted by the second stage of inflation to become utterly negligible in the present universe for almost all (for all) the allowed values of the parameters in the case of global supersymmetry (minimal supergravity).
description: 11 pages including 2 figures, uses Revtex, version to appear in Phys. Rev. D