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ACKNOWLEDGEMENTS AF, GL, LJS and GMP acknowledge support by the European Research Council (ERC) under the State of Hesse within the Cluster Project ELEMENTS. JD and SG acknowledge financial support from F.R.S.-FNRS (Belgium). RFS, JMS, JPM and PA acknowledge the support from FCT (Portugal) through research center funding UID/04559/2020 (LIBPhys). PQ is Research Director of the F.R.S.- FNRS. HCG is a holder of a FRIA fellowship. PP is a Research Associate of the Belgian Fund for Scientific Research F.R.S.-FNRS. This work has been supported by the Fonds de la Recherche Scientifique (FNRS, Belgium) and the Research Foundation Flanders (FWO, Belgium) under the Excellence of Science (EOS) Project (number O022818F and O000422F). Computational resources have been provided by the Consortium des Equipements de Calcul Intensif (CECI), funded by the F.R.S.-FNRS under Grant No. 2.5020.11 and by the Walloon Region of Belgium. We thank G. Gaigalas, M. Tanaka, D. Kato and C. J. Fontes for making some or all of their calculated atomic data public, facilitating benchmarks with other codes Even though the electromagnetic counterpart AT2017gfo to the binary neutron star merger GW170817 is powered by the radioactive decay of r-process nuclei, only few tentative identifications of light r-process elements have been made so far. One of the major limitations for the identification of heavy nuclei is incomplete or missing atomic data. While substantial progress has been made on lanthanide atomic data over the last few years, for actinides there has been less emphasis, with the first complete set of opacity data only recently published. We perform atomic structure calculations of neodymium (Z = 60) as well as the corresponding actinide uranium (Z = 92). Using two different codes (FAC and HFR) for the calculation of the atomic data, we investigate the accuracy of the calculated data (energy levels and electric dipole transitions) and their effect on kilonova opacities. For the FAC calculations, we optimise the local central potential and the number of included configurations and use a dedicated calibration technique to improve the agreement between theoretical and available experimental atomic energy levels (AELs). For ions with vast amounts of experimental data available, the presented opacities agree quite well with previous estimations. On the other hand, the optimisation and calibration method cannot be used for ions with only few available AELs. For these cases, where no experimental nor benchmarked calculations are available, a large spread in the opacities estimated from the atomic data obtained with the various atomic structure codes is observed.We find that the opacity of uranium is almost double the neodymium opacity. authorsversion inpress

Even though the electromagnetic counterpart AT2017gfo to the binary neutron star merger GW170817 is powered by the radioactive decay of r-process nuclei, only few tentative identifications of light r-process elements have been made so far. One of the major limitations for the identification of heavy nuclei is incomplete or missing atomic data. While substantial progress has been made on lanthanide atomic data over the last few years, for actinides there has been less emphasis, with the first complete set of opacity data only recently published. We perform atomic structure calculations of neodymium $(Z=60)$ as well as the corresponding actinide uranium $(Z=92)$. Using two different codes (FAC and HFR) for the calculation of the atomic data, we investigate the accuracy of the calculated data (energy levels and electric dipole transitions) and their effect on kilonova opacities. For the FAC calculations, we optimise the local central potential and the number of included configurations and use a dedicated calibration technique to improve the agreement between theoretical and available experimental atomic energy levels (AELs). For ions with vast amounts of experimental data available, the presented opacities agree quite well with previous estimations. On the other hand, the optimisation and calibration method cannot be used for ions with only few available AELs. For these cases, where no experimental nor benchmarked calculations are available, a large spread in the opacities estimated from the atomic data obtained with the various atomic structure codes is observed.We find that the opacity of uranium is almost double the neodymium opacity., 20 pages, 13 figures. Accepted by MNRAS

Due to their non-trivial topology, skyrmions describe deflected trajectories, which hinders their straight propagation in nanotracks and can lead to their annihilation at the track edges. This deflection is caused by a gyrotropic force proportional to the topological charge and the angular momentum density of the host film. In this article we present clear evidence of the reversal of the topological deflection angle of skyrmions with the sign of angular momentum density. We measured the skyrmion trajectories across the angular momentum compensation temperature (TAC) in GdCo thin films, a rare earth/transition metal ferrimagnetic alloy. The sample composition was used to engineer the skyrmion stability below and above the TAC. A refined comparison of their dynamical properties evidenced a reversal of the skyrmions deflection angle with the total angular momentum density. This reversal is a clear demonstration of the possibility of tuning the skyrmion deflection angle in ferrimagnetic materials and paves the way for deflection-free skyrmion devices.

We show that subanalytic bi-Lipschitz homeomorphisms in general does not preserve the multiplicities of real analytic sets., Comment: arXiv admin note: text overlap with arXiv:2108.01179

[Portugu��s] O artigo em ��nfase possui como escopo a desmistifica����o do r��tulo de sexo fr��gil atribu��do �� figura feminina no Brasil, atrav��s da demonstra����o da luta dessas protagonistas em alguns dos contextos laborais mais dif��ceis de se fazer parte, quais sejam o campo de produ����o cient��fica e o da sa��de. Isto posto, embora seja c��gnito que parcela consider��vel do estere��tipo feminino no que tange ao trabalho seja oriundo de ra��zes pret��ritas e estruturais fruto de um pa��s outrora patriarcal e essencialmente machista, a propaga����o de tal ideal ainda na sociedade brasileira hodierna �� de responsabilidade do cidad��o tupiniquim contempor��neo. Por conseguinte, conforme a referida linha de racioc��nio, ao perceber o cerne da problem��tica, �� dever e compromisso colaborativo em conson��ncia tanto do homem quanto da mulher a busca pela ruptura dessa realidade cruciante que permanece afligindo o corpo social brasileiro. Para atingir os fins deste escrito, utilizou-se a pesquisa em base de dados cient��fica SciELO, CAPES, RT online, LILACS, bem como em portais virtuais governamentais. [English] The article in emphasis aims to demystify the label of fragile sex attributed to the female figure in Brazil, by demonstrating the struggle of these protagonists in some of the most difficult work contexts to be part of, whatever the field of scientific production and the Cheers. That said, although it is clear that a considerable part of the female stereotype with regard to work comes from past and structural roots, the result of a country that was once patriarchal and essentially male, the propagation of such an ideal still in today���s Brazilian society is the responsibility of the Tupiniquim citizen contemporary. Therefore, according to the aforementioned line of reasoning, when realizing the core of the problem, it is a duty and a collaborative commitment in line with both the man and the woman the search for the rupture of this crucial reality that remains afflicting the Brazilian social body. To achieve the purposes of this paper, research was used in a scientific database SciELO, CAPES, RT online, LILACS, as well as in government virtual portals., Revista do CEAM, 7 (2), 2021.

[Portugu��s] O artigo objetiva elucidar a problem��tica rec��ndita por tr��s da restri����o da doa����o sangu��nea por homens homossexuais sob a ��gide da Constitui����o Cidad��/88 perscrutando destacar o teor discriminat��rio enraizado tanto na Resolu����o RDC n�� 34/14, art. 25, XXX, quanto na Portaria n�� 158/ 2016 em seu art. 64, IV. A abordagem versa sobre a conquista de revoga����o da restri����o mencionada com fundamento na vota����o da A����o Direta de Inconstitucionalidade 5.543 pelo Supremo Tribunal Federal, destacando os impactos desse processo na sociedade para com o compromisso com o direito �� vida e a solidariedade humana. Discorre, tamb��m, de forma emp��rica acerca da percep����o dos desdobramentos do preconceito contra a homossexualidade e a forma que tais indiv��duos s��o afetados pelos olhares tortos de uma sociedade doente que trata a orienta����o sexual alheia como uma patologia. Utilizou-se como a base de dados cient��fica SciELO, CAPES, RT online, LILACS e portais virtuais jur��dicos. [English] The article aims to elucidate the hidden problem behind the restriction of blood donation by homosexual men under the aegis of the Citizen Constitution / 88, seeking to highlight the discriminatory content rooted both in Resolution RDC n�� 34/14, art. 25, XXX, and in Ordinance No. 158/2016 in its art. 64, IV. The approach deals with the achievement of the revocation of the mentioned restriction based on the vote of the Direct Action of Unconstitutionality 5,543 by the Supreme Federal Court, highlighting the impacts of this process on society towards the commitment to the right to life and human solidarity. It also discusses in an empirical way about the perception of the consequences of prejudice against homosexuality and the way that these individuals are affected by the crooked looks of a sick society that treats the sexual orientation of others as a pathology. It was used as the scientific database SciELO, CAPES, RT online, LILACS and legal virtual portals., Revista do CEAM, 7 (2), 2021.

[Portugu��s] Nas ��ltimas d��cadas a implanta����o do uso de tecnologias mais aperfei��oadas no trabalho converteu-se em uma pr��tica de extrema import��ncia para a otimiza����o das atividades realizadas no ramo do Direito, apesar de parcela dos profissionais ainda n��o terem compreendido a magnitude da referida inser����o junto ao arcabou��o jur��dico e, alguns, manifestarem resist��ncia para usufru��-las. O artigo em ep��grafe, perscruta evidenciar as infer��ncias tanto de cunho positivo quanto negativo que a intelig��ncia artificial vem fomentando no que concerne ao aspecto laboral advocat��cio, al��m de apreciar como tal tecnologia sensibilizar�� ainda mais o cen��rio jur��dico explicitando os seus encadeamentos e incertezas. �� c��gnito que muitos advogados j�� fazem o uso da AI (Intelig��ncia Artificial) como apetrecho facilitador do seu trabalho, contudo, alguns, ainda relutam em assimilar e adequar-se �� nova realidade. Trata-se de um artigo de revis��o bibliogr��fica, no qual foi realizado uma busca na base de dados SciELO, CAPES e RT online dos artigos publicados nos ��ltimos 10 anos. [English] In the last decades, the implementation of the use of the most improved technologies has become a practice of extreme importance for the optimization of the activities carried out in the field of Law, although some professionals have not yet understood the magnitude of the referred insertion in the legal framework and, some, still show resistance to enjoy them. The article in question seeks to highlight the inferences of both a positive and negative nature that artificial intelligence has been fostering in relation to the labor law aspect, in addition to appreciating how such technology will make the legal scenario even more sensitive by explaining its chains and uncertainties. It is known that many lawyers already make use of AI (Artificial Intelligence) as a facilitator of their work, however, some are still reluctant to assimilate and adapt to the new reality. This is a bibliographical review article, in which a search was made in the SciELO, CAPES and RT online database of articles published in the last 10 years., Revista do CEAM, 7 (1), 2021.

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Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2021-03-29T20:48:09Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcos_flavio_souza_sampaio_junior.pdf: 1853875 bytes, checksum: 2595e9daff98121fd7d7543a48ac9f0a (MD5) Approved for entry into archive by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2021-03-30T13:01:53Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcos_flavio_souza_sampaio_junior.pdf: 1853875 bytes, checksum: 2595e9daff98121fd7d7543a48ac9f0a (MD5) Made available in DSpace on 2021-03-30T13:01:54Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcos_flavio_souza_sampaio_junior.pdf: 1853875 bytes, checksum: 2595e9daff98121fd7d7543a48ac9f0a (MD5) Previous issue date: 2020 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) As novas tend?ncias de reestrutura??o do emprego e do trabalho e a acelera??o das mudan?as organizacionais fazem com que o estresse ocupacional seja um fator a ser bastante discutido nas organiza??es devido ao impacto que pode gerar na sa?de dos trabalhadores. O conhecimento das caracter?sticas laborais que acarretam em fatores estressores nas institui??es p?blicas ? de relev?ncia para que se promova a qualidade de vida no trabalho. Este estudo tem como objetivo identificar o estresse laboral utilizando como ferramenta a vers?o resumida da ?job stress scale? relacionando aos aspectos sociodemogr?ficos, comportamentais e laborais. Em um primeiro momento, foi realizada a pesquisa de dados bibliogr?ficos para identifica??o dos conceitos e modelos para avalia??o do estresse ocupacional e da qualidade de vida no trabalho. Posteriormente, foi realizada a an?lise de estresse ocupacional que teve como amostra 211 servidores t?cnico-administrativos da Universidade Federal dos Vales do Jequitinhonha e Mucuri, cujos dados foram computados pela aplica??o de formul?rio eletr?nico. A an?lise dos dados foi executada utilizando estat?sticas descritiva e inferencial com an?lises univariada e multivariada. Foi poss?vel a identifica??o com este estudo de 34,6% dos respondentes enquadrados em trabalho passivo e 30,8% em alto desgaste. Foram identificados, ainda, ?ndices de signific?ncia de diversas vari?veis com os quadrantes demanda-controle. Fatores previsores dos quadrantes demanda-controle apresentaram resultados significativos em trabalho passivo para os cargos aux./assistente administra??o e inten??o de rotatividade com raz?o de chances (OR) 3,767 e 6,482, respectivamente, e para o quadrante alto desgaste os cargos aux./assistente administra??o com valor de (OR) 4,134 e inten??o de rotatividade (OR) 4,084. O estudo recomenda poss?veis interven??es para os cargos aux./assistente administra??o, assim como indica que podem ser realizados novos estudos para identifica??o das causas do alto ?ndice de inten??o de rotatividade. Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o em Sa?de, Sociedade e Ambiente, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2020. The new trends in restructuring employment and work and the acceleration of organizational changes make occupational stress a factor to be widely discussed in organizations due to the impact it can have on workers' health. Knowledge of the labor characteristics that lead to stressors in public institutions is of relevance for promoting quality of life at work. This study aimed to identify occupational stress using as a tool the short version of the "job stress scale" relating to sociodemographic, behavioral and labor aspects. At first, bibliographic data were searched to identify concepts and models for assessing occupational stress and quality of life at work. Subsequently, an occupational stress analysis was carried out with a sample of 211 administrative technical servers from the Universidade Federal dos Vales do Jequitinhonha e Mucuri, whose data were computed by the application of an electronic form. Data analysis was performed using descriptive and inferential statistics with univariate and multivariate analysis. It was possible to identify with this study 34.6% of the respondents in passive work and 30.8% in high wear. Significance indices of several variables were also identified with the demand-control quadrants. Predictive factors of the demand-control quadrants showed significant results in passive work for the auxiliary/assistant management positions and intention to rotate with odds ratio (OR) 3.767 and 6.482, respectively, and for the high-wear quadrant, the auxiliary/assistant positions administration with a value of (OR) 4.134 and an intention to rotate (OR) 4.084. The study recommends possible interventions for administrative assistant/assistant positions, as well as indicating that further studies may be carried out to identify the causes of the high turnover intention rate.

WOS: 000501394400003, In this paper, a summary of existing experimental data published in the period of time between 1954 and 2015 is reviewed and presented in a tabular form for average L shell fluorescence yields taken from different sources. First, a critical examination of these data using the weighted average values (omega) over bar (L-W) is presented. Then, an interpolation using the well-known analytical function ((omega) over bar (L-W)/(1 - (omega) over bar (L-W)))(1/4) as a function of the atomic number Z is performed to deduce a new empirical average L shell fluorescence yields for elements in the range 23

In this paper we present some applications of A'Campo-L\^e's Theorem and we study some relations between Zariski's Questions A and B. It is presented some classes of homeomorphisms that preserve multiplicity and tangent cones of complex analytic sets. Moreover, we present a class of homeomorphisms that has the multiplicity as an invariant when we consider right equivalence and this class contains many known classes of homeomorphisms that preserve tangent cones. In particular, we present some effective approaches to Zariski's Question A. We show a version of these results looking at infinity. Additionally, we present some results related with Nash modification and Lipschitz Geometry., Comment: 11 pages. To appear in Contemporary Mathematics

One fundamental obstacle to efficient ferromagnetic spintronics is magnetic precession, which intrinsically limits the dynamics of magnetic textures, We demonstrate that the domain wall precession fully vanishes with a record mobility when the net angular momentum is compensated (TAC) in DWs driven by spin-orbit torque in a ferrimagnetic GdFeCo/Pt track. We use transverse in-plane fields to reveal the internal structure of DWs and provide a robust and parameter-free measurement of TAC. Our results highlight the mechanism of faster and more efficient dynamics in materials with multiple spin lattices and reduced net angular momentum, promising for high-speed, low-power spintronics applications.

S. Pessanha, M. Manso and V. Antunes also acknowledge FCT for the post-doc grants SFRH/BPD/94234/2013, and SFRH/BPD/103315/2014 In this work, we present the combined use of in situ X ray Fluorescence spectroscopy and Monte Carlo simulation using PENELOPE code for the completely non-invasive determination of gold leaf thickness in artworks using lead white as mordant. The methodology used is based on the detection of different characteristic lines of Pb in the X ray fluorescence spectra, attenuated trough the gold leaves, and determining the thickness of gilding by comparing their attenuation. Firstly, this methodology was calibrated using model samples of simple stratigraphy, namely pure Au leafs of 1, 2 and 2.5 μm thickness covering a Pb infinitely thick sheet. The modelled X ray setup was then used to study the gilding thickness of three panel paintings belonging to the Museum of Christian Art in Old Goa (India): two paintings, from the 18th century, concerning to the same series but different themes: Our Lady of Sorrows (MoCA1) and Our Lady of Seven Sorrows (MoCA2), and a third painting entitled Monstrance (MoCA3), from the 17th century. These panel paintings were analyzed to understand the differences and similarities between techniques, according to the time/epoch and technique of its manufacture. The obtained values for MoCA2 tend to be slightly lower than for MoCA1, however, the t student test revealed that the differences were not statistically different (p = .37). Regarding the MoCA3 painting, the average thickness was determined to be statistically different (p < .001) and higher than for the other two paintings. These results emphasize the use of different techniques concerning gold leaf beating. In the 17th century painting it was verified the use of a thicker gold leaf while in the group of the 18th century gold leaf was thinner and manufactured with a similar thickness in both paintings. These results are in consonance with the accuracy of leaf beating technology, increasing with the experience acquired during the ages. authorsversion published

My main claim in this article is that lawyers should make less use of the hermeneutical method than they do. The reasons that I will adduce to support this claim are the following: Law (tout court) is first and foremost an answer to the question of how to act, and more in particular, the question of which rules to enforce by collective means. As such, law does not coincide with positive law. Nevertheless, positive law determines the content of the law to a large extent. It does so for two reasons. The first reason is that positive law contributes to legal certainty, and that legal certainty is very important for the question concerning which rules should be enforced by collective means. The second reason is that respect for the positive law, which was created by democratic bodies, implies respect for democracy. However, positive law can only contribute to legal certainty if its application is predictable. If the positive law can be interpreted in more than one way, its application will not be predictable. In that case the positive law is not relevant for the content of the law tout court. Theories about the interpretation of positive law (hermeneutical theories) are particularly relevant where positive law can be interpreted in different ways, that is: where positive law is not relevant for the content of the law tout court. Therefore, hermeneutical theories are not relevant for the content of the law and lawyers should not waste their time on them. A similar argument can be given for the democratic legitimation of positive law.

Ferrimagnetic TbFe or TbFeCo amorphous alloy thin films have been grown by co-evaporation in ultra-high vacuum. They exhibit an out-of-plane magnetic anisotropy up to their Curie temperature with a nucleation and propagation reversal mechanism suitable for current induced domain wall motion. Rutherford back scattering experiments confirmed a fine control of the Tb depth-integrated composition within the evaporation process. However, a large set of experimental techniques were used to evidence an interface related contribution in such thin films as compared to much thicker samples. In particular, scanning transmission electron microscopy experiments evidence a depth dependent composition and perturbed top and bottom interfaces with preferential oxidation and diffusion of terbium. Despite of that, amorphous and homogeneous alloy film remains in a bulk-like part. The composition of that bulk-like part of the magnetic layer, labeled as effective composition, is biased when compared with the depth-integrated composition. The magnetic properties of the film are mostly dictated by this effective composition, which we show changes with different top and bottom interfaces., 9 figures

M. Guerra acknowledges the support of the FCT, under Contract No. SFRH/BPD/92455/2013. This work was supported in part by the research center Grants No. UID/FIS/04559/2013 to LIBPhys-UNL, and No. UID/MULTI/04046/2013 to BioISI, from the FCT/MCTES/PIDDAC. Laboratoire Kastler Brossel is "Unite Mixte de Recherche du CNRS, de l' ENS et de l'UPMC" No. 8552. Parts of this work have been carried out in the framework of the Project 14IND01 3DMetChemIT, funded by the EMPIR program, co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation program. Fluorescence yields (FY) for the Ni K and L shells were determined by a theoretical and an experimental group within the framework of the International Initiative on X-ray Fundamental Parameters (FPs) collaboration. Coster-Kronig (CK) parameters were also measured for the L shell of Ni. Theoretical calculations of the same parameters were performed using the Dirac-Fock method, including relativistic and QED corrections. The experimental values for the FY and CK were determined at the PTB laboratory in the synchrotron radiation facility BESSY II, Berlin, Germany, and are compared to the corresponding calculated values. publishersversion published

We address a metric version of Zariski's multiplicity conjecture at infinity that says that two complex algebraic affine sets which are bi-Lipschitz homeomorphic at infinity must have the same degree. More specifically, we prove that the degree is a bi-Lipschitz invariant at infinity when the bi-Lipschitz homeomorphism has Lipschitz constants close to 1. In particular, we have that a family of complex algebraic sets bi-Lipschitz equisingular at infinity has constant degree. Moreover, we prove that if two polynomials are weakly rugose equivalent at infinity, then they have the same degree. In particular, we obtain that if two polynomials are rugose equivalent at infinity or bi-Lipschitz contact equivalent at infinity or bi-Lipschitz right-left equivalent at infinity, then they have the same degree., 13 pages. This is a minor revision of the last version with some changes in some definitions and proofs. To appear in the Proceedings of the American Mathematical Society

We prove that tangent cones of Lipschitz normally embedded sets are Lipschitz normally embedded. We also extend to real subanalytic sets the notion of reduced tangent cone and we show that subanalytic Lipschitz normally embedded sets have reduced tangent cones. In particular, we get that Lipschitz normally embedded complex analytic sets have reduced tangent cones., The paper was reorganized and also it was added an appendix by Anne Pichon and Walter D. Neumann. It has 13 pages and 6 figures

We prove that if two germs of irreducible complex analytic curves at $0\in\mathbb{C}^2$ have different sequence of characteristic exponents, then there exists $0, Comment: 12 pages. Minor corrections in Example 4.16

This paper is devoted to study multiplicity and regularity as well as to present some classifications of complex analytic sets. We present an equivalence for complex analytical sets, namely blow-spherical equivalence and we receive several applications with this new approach. For example, we reduce to homogeneous complex algebraic sets a version of Zariski's multiplicity conjecture in the case of blow-spherical homeomorphism, we give some partial answers to the Zariski's multiplicity conjecture, we show that a blow-spherical regular complex analytic set is smooth and we give a complete classification of complex analytic curves., Comment: 24 pages. New references have been added, some typos have been corrected and some details have been added in the proof of Theorem 5.18

We prove that if two germs of irreducible complex analytic curves at $0\in\mathbb{C}^2$ have different sequence of characteristic exponents, then there exists $0, 12 pages. Minor corrections in Example 4.16

We study invariance of multiplicity of complex analytic germs and degree of complex affine sets under outer bi-Lipschitz transformations (outer bi-Lipschitz homeomorphims of germs in the first case and outer bi-Lipschitz homeomorphims at infinity in the second case). We prove that invariance of multiplicity in the local case is equivalent to invariance of degree in the global case. We prove invariance for curves and surfaces. In the way we prove invariance of the tangent cone and relative multiplicities at infinity under outer bi-Lipschitz homeomorphims at infinity, and that the abstract topology of a homogeneous surface germ determines its multiplicity., Comment: 11 pages

We prove that any complex analytic set in $\mathbb{C}^n$ which is Lipschitz normally embedded at infinity and has tangent cone at infinity that is a linear subspace of $\mathbb{C}^n$ must be an affine linear subspace of $\mathbb{C}^n$ itself. No restrictions on the singular set, dimension nor codimension are required. In particular, a complex algebraic set in $\mathbb{C}^n$ which is Lipschitz regular at infinity is an affine linear subspace., Comment: Revision in the statement of Corollary 5.7 and it is added Example 5.8. 12 pages

Magnetic skyrmions are quasiparticle-like textures which are topologically different from other states. Their discovery in systems with broken inversion symmetry sparked the search for materials containing such magnetic phase at room temperature. Their topological properties combined with the chirality-related spin–orbit torques make them interesting objects to control the magnetization at nanoscale. Here we show that a pair of coupled skyrmions of opposite chiralities can be stabilized in a symmetric magnetic bilayer system by combining Dzyaloshinskii–Moriya interaction (DMI) and dipolar coupling effects. This opens a path for skyrmion stabilization with lower DMI. We demonstrate in a device with asymmetric electrodes that such skyrmions can be independently written and shifted by electric current at large velocities. The skyrmionic nature of the observed quasiparticles is confirmed by the gyrotropic force. These results set the ground for emerging spintronic technologies where issues concerning skyrmion stability, nucleation and propagation are paramount., The creation of practical devices based on magnetic skyrmions depends on the development of methods to create and control stable individual skyrmions. Here, the authors present a bilayer device that uses dipolar interactions to stabilize skyrmions that can be manipulated using electric currents.

Introduction: Postprandial chronic hypoglycaemia following gastric bypass for obesity is considered a late manifestation of the dumping syndrome. The anatomic and physiologic changes of the operation may lead to uncommon but difficult to treat complication as hyperinsulinemic hypoglycemia with neuroglycopenia.[for full text, please go to the a.m. URL], 133. Kongress der Deutschen Gesellschaft für Chirurgie

International audience; We carried out measurements of domain wall (DW) velocities driven by magnetic field pulses in symmetric Pt/Co/Pt and asymmetric Pt/Co/AlOx, Pt/Co/GdOx and Pt/Co/Gd trilayers with ultrathin Co layers and perpendicular magnetic anisotropy. In agreement with theoretical models, the maximum observed velocity is much larger in the asymmetric samples, where the interfacial Dzyaloshinskii-Moriya interaction (DMI) stabilises chiral N\'eel walls, than in the symmetric stack. In addition, in Pt/Co/Gd very large DW speeds (up to 600 m/s) are obtained, 2.5 times larger than in samples with oxidised Gd. Magnetic measurements reveal that this may be explained by the anti-parallel coupling between the magnetic moments of Gd and Co at the Gd/Co interface, leading to a decrease of the total magnetisation. In quantitative agreement with analytical models, in all samples the maximum observed DW speed scales as D/Ms, where D is the strength of the DMI and Ms the spontaneous magnetisation.

In order to increase the thermal stability of a magnetic random access memory (MRAM) cell, materials with high spin-orbit interaction are often introduced in the storage layer. As a side effect, a strong Dzyaloshinskii-Moriya interaction (DMI) may arise in such systems. Here we investigate the impact of DMI on the magnetic cell performance, using micromagnetic simulations. We find that DMI strongly promotes non-uniform magnetization states and non-uniform switching modes of the magnetic layer. It appears to be detrimental for both the thermal stability of the cell and its switching current, leading to considerable deterioration of the cell performance even for a moderate DMI amplitude., 5 pages, 3 figures

Introduction. Aggressive angiomyxoma is a rare mesenchymal neoplasm. Although benign in the majority of the cases, these neoplasms usually present a locally infiltrative nature and high rates of recurrence. Due to its rarity, misdiagnosis is a common problem. Case Presentation. We present one case of aggressive angiomyxoma in a 25-year-old pregnant woman. The patient presented with a large vaginal mass that was interpreted as a vaginal cyst. We performed surgical resection of the neoplasm and the correct diagnosis was only achieved after histological examination. With this case, we highlight the importance of considering this diagnosis in patients with genital and perineal masses of unknown origin and the impact of a correct preoperative diagnosis in patient’s management and follow-up. Conclusion. Although aggressive angiomyxoma is rare, it should be considered in differential diagnosis of pelviperineal masses in young women. Its positivity to estrogen and progesterone receptors can justify enlargement and recurrence during pregnancy, although few cases are reported. Early recognition demands high index of suspicion for both gynaecologists and pathologists. Wide surgical excision with tumor free margins is the basis of curative treatment. Adjuvant therapy may be necessary for residual or recurrent tumors. Long-term follow-up is recommended.

One of the topics of sport sciences that have not been adequately investigated is the importance that specialists dedicate to tactical skills in long-term players development. The purpose of this study was to evaluate the importance that basketball coaches give to the development of these abilities in both sexes. Data were collected using a questionnaire. Items tapped six areas tactic related to: small sided games, offensive superiority games, defensive superiority games, formal game, offense and defense. The sample was divided according to team's sex and stage of long-term development: initiation, orientation, specialization, or high-performance. No significant differences were found in small sided games and formal game. Significant differences in assigned importance between coaches of boys to offensive superiority and defensive superiority games were found, supporting that these items should be the subject of more intense development primarily until 14 years of age. Significant differences in assigned importance between coaches of girls to defense were found. Coaches reinforced the importance of developing team offensive aspects, primarily at highperformance stage. Finally, significant differences in assigned importance between coaches of both sexes to defensive tactical work were found. Results confirmed that defensive tactical work should be the subject of more intense development between 11 and 14 years old but mostly after 19 years of age, reinforcing the importance of tactical work in later stages of development, i.e., high-level performance.

Fluorescence yields (FYs) for the Ge L shell were determined by a theoretical and two experimental groups within the framework of the International Initiative on X-Ray Fundamental Parameters Collaboration. Calculations were performed using the Dirac-Fock method, including relativistic and QED corrections. The experimental value of the L3FYωL3 was determined at the Physikalisch-Technische Bundesanstalt undulator beamline of the synchrotron radiation facility BESSY II in Berlin, Germany, and the Lα1,2 and Lβ1 line widths were measured at the Swiss Light Source, Paul Scherrer Institute, Switzerland, using monochromatized synchrotron radiation and a von Hamos x-ray crystal spectrometer. The measured fluorescence yields and line widths are compared to the corresponding calculated values.

Facing the ever-growing demand for data storage will most probably require a new paradigm. Nanoscale magnetic skyrmions are anticipated to solve this issue as they are arguably the smallest spin textures in magnetic thin films in nature. We designed cobalt-based multilayered thin films where the cobalt layer is sandwiched between two heavy metals providing additive interfacial Dzyaloshinskii-Moriya interactions, which reach a value close to 2 mJ m-2 in the case of the Ir|Co|Pt asymmetric multilayers. Using a magnetization-sensitive scanning x-ray transmission microscopy technique, we imaged small magnetic domains at very low field in these multilayers. The study of their behavior in perpendicular magnetic field allows us to conclude that they are actually magnetic skyrmions stabilized by the large Dzyaloshinskii-Moriya interaction. This discovery of stable sub-100 nm individual skyrmions at room temperature in a technologically relevant material opens the way for device applications in a near future.

Francesca et al (2010) studied the ecology of wine yeasts associated to birds caught in vineyards. The same authors were able to prove that migratory birds might carry living pro-technological yeasts for about 12 hours from the ingestion of inoculated feed (Francesca et al 2012). In subsequent studies, they tried to demonstrate that microorganisms are not only transported for a short period by birds, but microorganisms might be adapted to the specific conditions (body temperature about 42 °C and low pH) of the intestinal tract of birds. Hence, it was demonstrated that the majority of isolates carried by birds are thermotolerant. The most interesting results were the isolation of two new species of thermotolerant yeasts, isolated from birds (Francesca et al 2013, 2014). Presently, the main scope of this work is to investigate an additional number of seven new species of thermotolerant yeasts isolated from migratory birds. Bird’s cloacae were analyzed for the presence of yeasts (Francesca et al 2012). All isolates were subjected to phylogenetic and phenotypic analyses as reported by Francesca et al (2014). Twenty four cultures belonging to the genera Candida and Aureobasidium were isolated from birds. The phylogenetic analysis of D1/D2 domain of 26S and ITS region of 5.8S rRNA genes placed the cultures of Candida and Aureobasidium in new lineages that differed conspicuously from their closest relatives, C. verbasci and A. pullulans, respectively. For our Candida isolates the phenotypic analyses showed several discrepancies in assimilation tests between our cultures and C. verbasci, as well as represent a novel ecological niche of new species of thermotolerant yeasts gathered.

We prove that if there exists a bi-Lipschitz homeomorphism (not necessarily subanalytic) between two subanalytic sets, then their tangent cones are bi-Lipschitz homeomorphic. As a consequence of this result, we show that any Lipschitz regular complex analytic set, i.e any complex analytic set which is locally bi-lipschitz homeomorphic to an Euclidean ball must be smooth. Finally, we give an alternative proof of S. Koike and L. Paunescu's result about the bi-Lipschitz invariance of directional dimensions of subanalytic sets., Comment: 7 pages

Pycnodysostosis is a rare genetic syndrome characterized by short stature, obtuse mandibular angle, frontal, parietal and occipital bossing, open fontanels and cranial sutures, midfacial hypoplasia, acro-osteolysis of the distal phalanges, increased bone density, absence or hipopneumatization of the paranasal sinuses and normal laboratory studies. We report the case of a 35-year-old Brazilian man that was referred to a private clinic with history of dysmorphic facies for evaluation. The clinical and radiological features exhibited by the patient led to a diagnosis of pycnodysostosis. We describe the morphological features of pycnodysostosis with emphasis on the clinical and radiographic maxillofacial findings comparing the data obtained from our case with a literature review. La picnodisostosis es un síndrome genético raro caracterizado por baja estatura, ángulo de la mandíbula obtuso, prominencias frontal, parietal y occipital, suturas craneales y fontanelas abiertas, hipoplasia del tercio medio de la cara, acroosteolisis de las falanges distales, aumento de la densidad ósea, ausencia o hiponeumatización de los senos paranasales y exámenes de laboratorio normales. Se presenta un caso de paciente brasileño, 35 años de edad, sexo masculino, remitido a clínica privada con historia de facies dismórfico para evaluación. Las características clínicas y radiológicas exhibidas por el paciente llevaron al diagnóstico de picnodisostosis. Se describe las características morfológicas de la picnodisostosis con énfasis en los hallazgos clínicos y radiológicos maxilofaciales, comparando los datos obtenidos en nuestro caso con los hallazgos reportados en la literatura revisada.

Num mundo cada vez mais industrializado e consumista, com assimetrias territoriais várias, a defesa dos valores ambientais assume uma progressiva importância, uma vez que a qualidade de vida passa também pela qualidade ambiental. Como os produtos gerados pelo consumo devem ter o confinamento correto em função das suas diversas componentes, a gestão do processo de deposição, recolha e transporte de RSU, fica mais complexa, à medida que a população e a área se diversifica e expande, como acontece em alguns territórios rurais, agravando os custos e os impactos ambientais induzidos, se não for equacionada uma solução simultaneamente eficaz e eficiente. Paralelamente urge a satisfação dos residentes e dos restantes utilizadores enquanto usuários desses territórios. Por este motivo, nos últimos anos, as autarquias têm vindo a estudar essas soluções nas suas áreas de jurisdição, tentando com as ações realizadas, respeitar não só os critérios de proteção ambiental, mas também as necessidades das pessoas. Neste trabalho apresentam-se algumas variáveis identificadas, como resultados de um estudo de caso aplicado a um município rural, Anadia, onde se evidencia a ausência de sensibilização e a carência de meios e processos que podem comprometer as metas ambientais e sociais desejadas. In a world, progressively more industrialized and consumer, with several territorial disparities, the protection of environmental values assumes an increasingly importance, since the quality of life also involves environmental quality. As the products generated by the consumption must have a correct confinement in its various components, the management of the deposition process, collection and transportation of municipal solid waste, is more complex, as the population and the area expand, as happens in some rural territories, increasing the cost and environmental impacts induced, if not equated a solution both effective and efficient. At the same time it is very important to increase the satisfaction of residents, visitors and tourists visiting these areas. For this reason, in the last years, the municipalities have been studying these solutions in their areas of jurisdiction. That is why they try to respect not only the criteria of environmental protection, but also the needs of people and fulfilled actions whose variables we shall try to present as a case study applied to a rural municipality, Anadia, where we show up that the absence of awareness and the lack of means and processes can compromise the desired environmental and social goals

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-12-11T19:31:04Z No. of bitstreams: 1 2012 - J?sus Sampaio J?nior.pdf: 1810130 bytes, checksum: 834e19e522ec02e413e52deda0c29a24 (MD5) Made available in DSpace on 2019-12-11T19:31:04Z (GMT). No. of bitstreams: 1 2012 - J?sus Sampaio J?nior.pdf: 1810130 bytes, checksum: 834e19e522ec02e413e52deda0c29a24 (MD5) Previous issue date: 2012-02-16 CAPES The oil and its derivatives have become not only one of the main primary sources of global energy production nut an input for virtually all industrial sectors, and in the next decades this framework will continue to increase. However, the oil exploration has aggravating factors, such as production of wastes, which have various pollutants mainly due to the used fluid. Among the contaminants, barium and sodium are generally in high concentrations. The storage of such residues in inappropriate locations and without proper treatment enhances the risks of soil, groundwater and living beings contamination. Thus, this study aimed to evaluate the effects of soil application of drilling waste from oil wells in the development and absorption of barium and sodium by sunflower and castor plants, and risks of groundwater contamination. The study was carried out in a greenhouse at Federal Rural University of Rio de Janeiro research area. The soil and waste materials were collected during the drilling of the well 7-MGP-98D-BA. Two experiments were established simultaneously, one with plants and the other in leaching columns. For both tests, the dosages of the residues were determined using guiding values proposed by CONAMA (2009), and they were: control - no application of barium, with natural contents of the element in the soil; and the dosages of 300, 3000 and 6000 mg kg-1 from two residue sources. These dosages are respectively related to an application of 16.6, 165.9 and 331.8 Mg.ha-1 of the dryer residue; and 2.6, 25.7 and 51.3 Mg.ha-1 of the centrifuge residue. In the plants test, two species with potential for biodiesel production were used; sunflower (Catissol 01) and castor bean (Al Guarany 2002). Analyses of growth, dry matter production and elements absorption by plants were carried out. In the column leaching test two redox potential (oxidation and reduction) conditions were tested. The redox potential, pH, the analysis of the pseudo total levels and the soil geochemical fractioning, and the analysis of leachate extracts were monitored. It was observed that in the reduction condition an increase in the barium levels for the most labile fractions, and a decrease in the stable fractions, in both residue sources. There was also more sulfate solubilization, consequently increasing the barium levels in the leachate extracts. In relation to sodium, it was observed that the highest percentages removed in the leachate extracts were found in the centrifuge residue and in the oxidation condition. For the dryer residue, the dosages 2 and 3 affected the growth of plants, whereas in the centrifuge residue, the plants only were affected at the highest concentration, due to high sodium levels. This element showed to be the most critical in the waste. The barium absorption by the sunflower and castor bean plants was not affected by increasing dosages of residue. O petr?leo e seus derivados transformaram-se n?o s? em uma das principais fontes prim?rias da matriz energ?tica mundial, mas tamb?m em insumos para praticamente todos os setores industriais, e nas pr?ximas d?cadas esse quadro deve continuar a aumentar. Por?m, a explora??o de petr?leo apresenta agravante, como a gera??o de res?duos, os quais apresentam diversos poluentes, principalmente, em fun??o do fluido utilizado. Dentre os contaminantes, o b?rio e o s?dio est?o presentes, geralmente, em elevadas concentra??es. A disposi??o desses res?duos em locais inadequados e sem tratamento adequado, potencializa os riscos de contamina??o do solo, das ?guas subterr?neas e dos seres vivos. Desta forma, o presente trabalho teve como objetivo avaliar os efeitos da aplica??o no solo de res?duos de perfura??o de po?os de petr?leo no desenvolvimento e absor??o de b?rio e s?dio por plantas de girassol e mamona, al?m dos riscos de contamina??o das ?guas subterr?neas. O experimento foi conduzido em casa de vegeta??o, em ?rea de pesquisa da Universidade Federal Rural do Rio de Janeiro. O solo e os res?duos utilizados foram coletados durante a perfura??o do po?o 7- MGP-98D-BA. Foram instalados dois ensaios em paralelo, um com plantas e outro com colunas de lixivia??o. Para ambos os ensaios, as doses dos res?duos foram determinadas com base nos valores orientadores propostos pelo CONAMA (2009), sendo estas: Testemunha ? sem aplica??o de b?rio, sendo somente os teores naturais do solo; e doses de 300, 3000 e 6000 mg kg-1, de res?duos de duas fontes. Essas doses s?o respectivamente referentes ? aplica??o de 16,6, 165,9 e 331,8 Mg ha-1, do res?duo do secador, e 2,6, 25,7 e 51,3 Mg ha-1, do res?duo da centr?fuga. No ensaio de plantas, foram utilizadas duas esp?cies promissoras na produ??o de ?leo para biodiesel, o girassol (Catissol 01) e a mamona (Al Guarany 2002). Foram realizadas an?lises de crescimento, produ??o de mat?ria seca e absor??o dos elementos pelas plantas. No ensaio de colunas de lixivia??o foram testadas duas condi??es de potencial redox (oxida??o e redu??o). Foi realizado monitoramento do potencial redox, pH, an?lise dos teores pseudototais e fracionamento geoqu?mico do solo e an?lise dos extratos lixiviados. Foi observado que na condi??o de redu??o ocorreu aumento nos teores de b?rio nas fra??es mais l?beis e diminui??o nas fra??es de maior estabilidade, para ambos os res?duos. Ocorreu tamb?m maior solubiliza??o do sulfato e consequente aumento nos teores de b?rio nos extratos lixiviados. Em rela??o ao s?dio, observou-se que as maiores porcentagens removidas nos extratos lixiviados, foram para o res?duo da centr?fuga e na condi??o de oxida??o. Para o res?duo do secador as doses 2 e 3 afetaram o desenvolvimento das plantas, enquanto que para o res?duo da centr?fuga, as plantas somente foram afetadas na maior dose, devido aos elevados teores de s?dio. Esse elemento mostrou-se o mais cr?tico presente nos res?duos. A absor??o de b?rio pelas plantas de girassol e mamona n?o foi afetada com o aumento das doses de res?duo.

Being E a vector space with inner product and S the sphere of E, will be given a demonstration that every application of the sphere S itself it such that preserve inner product is the restriction of a linear isometry in E., Comment: 3 pages

This article was withdrawn by the author to be incorporated into the paper "Extens\~ao de aplica\c{c}\~oes na esfera de um espa\c{c}o vetorial com produto interno" (arXiv:1109.2866)., Comment: This article was withdrawn by the author to be incorporated into the paper "Extens\~ao de aplica\c{c}\~oes na esfera de um espa\c{c}o vetorial com produto interno", arXiv:1109.2866

This article was withdrawn by the author to be incorporated into the paper "Extens��o de aplica����es na esfera de um espa��o vetorial com produto interno" (arXiv:1109.2866)., This article was withdrawn by the author to be incorporated into the paper "Extens\~ao de aplica\c{c}\~oes na esfera de um espa\c{c}o vetorial com produto interno", arXiv:1109.2866

[resumo] [abstract]

Being E a vector space with inner product and S the sphere of E, will be given a demonstration that every application of the sphere S itself it such that preserve inner product is the restriction of a linear isometry in E., 3 pages

The temperature dependence of the electrical resistivity in insulator systems with a Coulomb gap in the density of states is expressed by a very simple function which coincides with the Efros-Shklovskii T^(-1/2)result, at temperatures lower than some value Tlim. Above this limit it consists of the product of the Mott T^(-1/4) exponential with another one like a simply thermally activation process. It fits well several experimental results reported as having a crossover between the Efros-Shklovskii and Mott regimes, and allows the determination of the gap parameters even in experiments that do not reach the T^(-1/2) regime. Also it accounts for some experimental results reported to follow a T^(-n) behavior with 0.5, Comment: 4 pages, PDF file, includes the 3 figures