Symmetry breaking effects upon bipartite and multipartite entanglement in the XY model

We analyze the bipartite and multipartite entanglement for the ground state of the one-dimensional XY model in a transverse magnetic field in the thermodynamical limit. We explicitly take into account the spontaneous symmetry breaking in order to explore the relation between entanglement and quantum phase transitions. As a result we show that while both bipartite and multipartite entanglement can be enhanced by spontaneous symmetry breaking deep into the ferromagnetic phase, only the latter is affected by it in the vicinity of the critical point. This result adds to the evidence that multipartite, and not bipartite, entanglement is the fundamental indicator of long range correlations in quantum phase transitions.Comment: 13 pages, 19 figures, comments welcome. V2: small changes, published versio

GAWPS: A MRST-based module for wellbore profiling and graphical analysis of flow units

Several graphical methods have been developed to understand the stratigraphy observed in wells and assist experts in estimating rock quality, defining limits for barriers, baffles, and speed zones, and in particular, delineating hydraulic flow units. At present, there exists no computational tool that bundles the main graphical methods used for defining flow units. This paper introduces an add-on module to the MATLAB Reservoir Simulation Toolbox that contains computational routines to carry out such graphical analyses, both qualitatively and quantitatively. We also describe a new secondary method defined as the derivative of the stratigraphic modified Lorenz plot, which we use to classify depth ranges within the reservoir into barriers, strong baffles, weak baffles, and normal units, based on flow unit speed over those depths. We demonstrate the capabilities of the “Graphical Analysis for Well Placement Strategy” module by applying it to several case studies of both real and synthetic reservoirs.Cited as: Oliveira, G. P., Rodrigues, T. N. E., Lie, K.-A. GAWPS: A MRST-based module for wellbore profiling and graphical analysis of flow units. Advances in Geo-Energy Research, 2021, 6(1): 38-53. https://doi.org/10.46690/ager.2022.01.0

APyCE: A Python module for parsing and visualizing 3D reservoir digital twin models

Engineers, geoscientists, and analysts can benefit from fast, easy, and real-time immersive 3D visualization to enhance their understanding and collaboration in a virtual 3D world. However, converting 3D reservoir data formats between different software programs and open-source standards can be challenging due to the complexity of programming and discrepancies in internal data structures. This paper introduces an open-source Python implementation focused on parsing industry reservoir data formats into a popular opensource visualization data format, Visual Toolkit files. Using object-oriented programming, a simple workflow was developed to export corner-point grids to Visual Toolkit-hexahedron structures. To demonstrate the utility of the software, standard raw input files of reservoir models are processed and visualized using Paraview. This tool aims to accelerate the digital transformation of the oil and gas industry in terms of 3D digital content generation and collaboration.Document Type: Short communicationCited as: Tosta, M., Oliveira, G. P., Wang, B., Chen, Z., Liao, Q. APyCE: A Python module for parsing and visualizing 3D reservoir digital twin models. Advances in Geo-Energy Research, 2023, 8(3): 206-210. https://doi.org/10.46690/ager.2023.06.0

O estágio supervisionado em Geografia: o que nos provoca a Educação Intercultural?

O artigo abarca o processo formativo dos graduandos em Licenciatura em Geografia da Universidade Federal da Bahia, com destaque para o componente curricular Estágio Supervisionado em Geografia II. Neste cenário, apresentamos as contribuições da Educação Intercultural (SANTIAGO, AKKARI, MARQUES, 2013) associadas aos postulados teóricos do professor Boaventura de Souza Santos (2002). A metodologia da pesquisa pautou-se pela narrativa autobiográfica para a qual a nossa história de vida (JOSSO, 2005) deve ser considerada no âmbito da formação da identidade profissional, sobretudo, a partir do estágio docente (PIMENTA; LIMA, 2008, p. 100). Para tal, evidenciamos que a Educação Intercultural nos permite trazer para a roda do diálogo questões que estão instauradas no “chão da escola” e que repercutem no espaço geográfico, mas que por questões da razão indolente (SANTOS, 2002) não são problematizadas nos cursos de formação de educadores em Geografia

Body-bending behaviour in snakes: new records of a poorly documented defensive behaviour.

Se describe el comportamiento poco conocido de "Body-bending behaviour" en varias especies de culebras y se discute el mismo.Fil: França, D. P. F.. Museu de Zoologia - Usp; BrasilFil: Oliveira, I. F.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Gennari, D.. Universidade Federal do Rio Grande do Norte. Centro de Biociencias. Departamento de Boanica, Ecologia e Zoologia; BrasilFil: Rocha, B. Universidade de Sao Paulo; BrasilFil: Smith, P.. Centro Ideal; ParaguayFil: Scrocchi Manfrini, Gustavo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Machado Filho, P. R.. Universidade de Sao Paulo; Brasi

Aerobic Swim Training Restores Aortic Endothelial Function by Decreasing Superoxide Levels in Spontaneously Hypertensive Rats

OBJECTIVE: We aimed to determine whether aerobic training decreases superoxide levels, increases nitric oxide levels, and improves endothelium-dependent vasodilation in the aortas of spontaneously hypertensive rats. METHODS: Spontaneously hypertensive rats (SHR) and Wistar Kyoto rats (WKY) were distributed into 2 groups: sedentary (SHRsd and WKYsd, n=10 each) and swimming-trained (SHRtr, n=10 and WKYtr, n=10, respectively). The trained group participated in training sessions 5 days/week for 1 h/day with an additional work load of 4% of the animal’s body weight. After a 10-week sedentary or aerobic training period, the rats were euthanized. The thoracic aortas were removed to evaluate the vasodilator response to acetylcholine (10-10 to 10-4 M) with or without preincubation with L-NG-nitro-L-arginine methyl ester hydrochloride (L-NAME; 10-4 M) in vitro. The aortic tissue was also used to assess the levels of the endothelial nitric oxide synthase and nicotinamide adenine dinucleotide oxidase subunit isoforms 1 and 4 proteins, as well as the superoxide and nitrite contents. Blood pressure was measured using a computerized tail-cuff system. RESULTS: Aerobic training significantly increased the acetylcholine-induced maximum vasodilation observed in the SHRtr group compared with the SHRsd group (85.9±4.3 vs. 71.6±5.2%). Additionally, in the SHRtr group, superoxide levels were significantly decreased, nitric oxide bioavailability was improved, and the levels of the nicotinamide adenine dinucleotide oxidase subunit isoform 4 protein were decreased compared to the SHRsd group. Moreover, after training, the blood pressure of the SHRtr group decreased compared to the SHRsd group. Exercise training had no effect on the blood pressure of the WKYtr group. CONCLUSIONS: In SHR, aerobic swim training decreased vascular superoxide generation by nicotinamide adenine dinucleotide oxidase subunit isoform 4 and increased nitric oxide bioavailability, thereby improving endothelial function

Quantitative Proteomic Analysis Reveals Changes in the Benchmark Corynebacterium pseudotuberculosis Biovar Equi Exoproteome after Passage in a Murine Host

Corynebacterium pseudotuberculosis biovar equi is the etiologic agent of ulcerative lymphangitis. To investigate proteins that could be related to the virulence of this pathogen, we combined an experimental passage process using a murine model and high-throughput proteomics with a mass spectrometry, data-independent acquisition (LC-MSE) approach to identify and quantify the proteins released into the supernatants of strain 258_equi. To our knowledge, this approach allowed characterization of the exoproteome of a C. pseudotuberculosis equi strain for the first time. Interestingly, the recovery of this strain from infected mouse spleens induced a change in its virulence potential, and it became more virulent in a second infection challenge. Proteomic screening performed from culture supernatant of the control and recovered conditions revealed 104 proteins that were differentially expressed between the two conditions. In this context, proteomic analysis of the recovered condition detected the induction of proteins involved in bacterial pathogenesis, mainly related to iron uptake. In addition, KEGG enrichment analysis showed that ABC transporters, bacterial secretion systems and protein export pathways were significantly altered in the recovered condition. These findings show that secretion and secreted proteins are key elements in the virulence and adaptation of C. pseudotuberculosis. Collectively, bacterial pathogenesis-related proteins were identified that contribute to the processes of adherence, intracellular growth and evasion of the immune system. Moreover, this study enhances our understanding of the factors that may influence the pathogenesis of C. pseudotuberculosis.Fil: Marques Da Silva, Wanderson. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; Brasil. Institut National de la Recherche Agronomique; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Carvalho, Rodrigo D. De Oliveira. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Dorella, Fernanda A.. Universidade Federal de Minas Gerais; BrasilFil: Folador, Edson L.. Universidade Federal da Paraíba. Centro de Biotecnologia; BrasilFil: Souza, Gustavo H. M. F.. Waters Corporation; BrasilFil: Pimenta, Adriano M. C.. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; BrasilFil: Figueiredo, Henrique C. P.. Universidade Federal de Minas Gerais; BrasilFil: Le Loir, Yves. Institut National de la Recherche Agronomique; FranciaFil: Silva, Artur. Universidade Federal do Pará; BrasilFil: Azevedo, Vasco. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; Brasi

Agrifood markets of the Vale do Jaguari (RS): the case of fruits, vegetables and viridity (fvv)

A abertura comercial intensificada a partir da década de 1990, condicionou a internacionalização dos mercados. Por outro lado, as políticas públicas de compras institucionais de alimentos crescem, sobretudo após 2000, e juntamente com as novas demandas vem reconfigurando territórios e colocando em evidência teórico-prática os mercados. O artigo analisa os mercados de hortigranjeiros acessados por agricultores da região do Vale do Jaguari (RS), bem como as especificidades dos atores envolvidos, das unidades de produção e dos canais de comercialização presentes. Metodologicamente, utilizou-se o enfoque qualitativo e quantitativo, com aplicação de questionários junto a 179 fruticultores e 135 olericultores, além da análise de dados secundários. Dentre alguns resultados encontrados, destaca-se o envelhecimento da população rural, sendo a média de idade dos responsáveis pela produção de FLV de 52 anos. Soma-se a isso, o esvaziamento das propriedades, sendo que essas possuíam, em média, 3,2 residentes por propriedade. Quanto às especificidades dos mercados acessados pelos agricultores, constatou-se que as feiras são os principais acessados. Por fim, conclui-se que mesmo diante da competição dos atuais mercados agroalimentares, os mercados de proximidade predominam frente aos demais no Vale do Jaguari, seguido dos mercados locais e territoriais para as hortaliças e dos convencionais para as frutas.The commercial opening, intensified after the 1990s, conditioned the internationalization of the markets. On the other hand, public policies for institutional food purchases have grown mainly after 2000, and toguether with the new demands, comes reconfiguring territories and placing theoretical and practical evidence on markets. The article analyzes the horticultural markets accessed by farmers in the Jaguari Valley region, as well as the specificities of the actors involved, the production units and the commercialization channels present. Methodologically, the qualitative and quantitative approach was applied, with questionnaires applied to 179 fruit growers, 135 farmers, in addition to the analysis of secondary data. Among the results found, the aging of the rural population stands out, being the average age of those responsible for the production of FLV of 52 years. In addition to this, the emptying of properties, which had, on average, 3.2 residents per property. As for the specific features of the markets accessed by farmers, it has been found that fairs are the main markets accessed by them, both for fruits and for vegetables. Finally, it is concluded that even in the face of the competition of the current agrifood markets, the proximity markets predominate in comparison with the others in the Jaguari Valley, followed by the local and territorial markets for vegetables and the conventional ones for fruits.Facultad de Ciencias Agrarias y Forestale

Agrifood markets of the Vale do Jaguari (RS): the case of fruits, vegetables and viridity (fvv)

A abertura comercial intensificada a partir da década de 1990, condicionou a internacionalização dos mercados. Por outro lado, as políticas públicas de compras institucionais de alimentos crescem, sobretudo após 2000, e juntamente com as novas demandas vem reconfigurando territórios e colocando em evidência teórico-prática os mercados. O artigo analisa os mercados de hortigranjeiros acessados por agricultores da região do Vale do Jaguari (RS), bem como as especificidades dos atores envolvidos, das unidades de produção e dos canais de comercialização presentes. Metodologicamente, utilizou-se o enfoque qualitativo e quantitativo, com aplicação de questionários junto a 179 fruticultores e 135 olericultores, além da análise de dados secundários. Dentre alguns resultados encontrados, destaca-se o envelhecimento da população rural, sendo a média de idade dos responsáveis pela produção de FLV de 52 anos. Soma-se a isso, o esvaziamento das propriedades, sendo que essas possuíam, em média, 3,2 residentes por propriedade. Quanto às especificidades dos mercados acessados pelos agricultores, constatou-se que as feiras são os principais acessados. Por fim, conclui-se que mesmo diante da competição dos atuais mercados agroalimentares, os mercados de proximidade predominam frente aos demais no Vale do Jaguari, seguido dos mercados locais e territoriais para as hortaliças e dos convencionais para as frutas.The commercial opening, intensified after the 1990s, conditioned the internationalization of the markets. On the other hand, public policies for institutional food purchases have grown mainly after 2000, and toguether with the new demands, comes reconfiguring territories and placing theoretical and practical evidence on markets. The article analyzes the horticultural markets accessed by farmers in the Jaguari Valley region, as well as the specificities of the actors involved, the production units and the commercialization channels present. Methodologically, the qualitative and quantitative approach was applied, with questionnaires applied to 179 fruit growers, 135 farmers, in addition to the analysis of secondary data. Among the results found, the aging of the rural population stands out, being the average age of those responsible for the production of FLV of 52 years. In addition to this, the emptying of properties, which had, on average, 3.2 residents per property. As for the specific features of the markets accessed by farmers, it has been found that fairs are the main markets accessed by them, both for fruits and for vegetables. Finally, it is concluded that even in the face of the competition of the current agrifood markets, the proximity markets predominate in comparison with the others in the Jaguari Valley, followed by the local and territorial markets for vegetables and the conventional ones for fruits.Facultad de Ciencias Agrarias y Forestale