cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Late Time Quantum Chaos of pure states in the SYK model
Creators: name: Numasawa, Tokiro
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this letter, we study the return amplitude, which is the overlap between the initial state and the time evolved state, in the Sachdev-Ye-Kitaev (SYK) model. Initial states are taken to be product states in a spin basis. We numerically study the return amplitude by exactly diagonalizing the Hamiltonian. We also derive the analytic expression for the return amplitude in random matrix theory. The SYK results agree with the random matrix expectation. We also study the time evolution under the different Hamiltonian that describes the traversable wormholes in projected black holes in the context of holography. The time evolution now depends on the choice of initial product states. The results are again explained by random matrix theory. In the symplectic ensemble cases, we observed an interesting pattern of the return amplitude where they show the second dip, ramp and plateau like behavior.
description: 5 pages (+appendices), revtex. v2: comments and references are added
Arte: Ontem e hoje
Creators: name: Ferreira, Rute Miriam Monteiro
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Para aprofundar e explorar a relação dinâmica da interculturalidade e da arte, este artigo pretende responder a três questões. Na primeira: “O que é arte?”, tenta-se encontrar uma definição para o conceito. Com a análise do trabalho e vida do pintor Vincent van Gogh (entre outros), pretende-se perceber “Quem possuía a autoridade para decidir aquilo que era ou não considerado arte no passado?”. A terceira questão utiliza a comparação entre o passado e o presente, assim como conceitos obtidos na Unidade Curricular de Estudos Interculturais, para perceber “Porque é que o que não era considerado arte há poucos séculos atrás, o é hoje?”.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Cauchy-Characteristic Matching In General Relativity
Creators: name: Szilagyi, Bela
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: From Einstein's theory we know that besides the electromagnetic spectrum, objects like quasars, active galactic nuclei, pulsars and black holes also generate a physical signal of purely gravitational nature. The actual form of the signal is impossible to determine analytically, which lead to use of numerical methods. Two major approaches emerged. The first one formulates the gravitational radiation problem as a standard Cauchy initial value problem, while the other approach uses a Characteristic Initial value formulation. In the strong field region, where caustics in the wavefronts are likely to form, the Cauchy formulation is more advantageous. On the other side, the Characteristic formulation is uniquely suited to study radiation problems because it describes space-time in terms of radiation wavefronts. The fact that the advantages and disadvantages of these two systems are complementary suggests that one may want to use the two of them together. In a full nonlinear problem it would be advantageous to evolve the inner (strong field) region using Cauchy evolution and the outer (radiation) region with the Characteristic approach. Cauchy Characteristic Matching enables one to evolve the whole space-time matching the boundaries of Cauchy and Characteristic evolution. The methodology of Cauchy Characteristic Matching has been successful in numerical evolution of the spherically symmetric Klein-Gordon-Einstein field equations as well as for 3-D non-linear wave equations. In this thesis the same methodology is studied in the context of the Einstein equations.
description: 16 LaTeX files, 1 bibliography (bbl) file, 1 style file, 68 PostScript figures
Habitat use and co-occurrence of two species of tody-tyrant, Hemitriccus (Aves: Rhynchocyclidae) in a fragment of montane forest in north-eastern Brazil
Creators: name: Oliveira-Silva, Williams
name: Toledo-Lima, Guilherme S.
name: Lyra-Neves, Rachel M.
name: Telino-Junior, Wallace R.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: The availability of appropriate habitats and their connectivity are important determinants of the distribution of animal species. In the present study, the influence of environmental covariates on the habitat use of two tody-tyrants (Hemitriccus margaritaceiventer and Hemitriccus mirandae) was verified using single-season occupancy modelling. The co-occurrence patterns of the two species were also analysed using conditional occupancy modelling. The data were collected in remnants of montane forest in north-eastern Brazil using the point count method, with samples being obtained in both dry (November to January) and rainy (May and June) seasons. Four types of environmental covariates were evaluated: the season, elevation, parameters of vegetation structure, and level of environmental degradation. The occupancy of H. margaritaceiventer was influenced primarily by elevation, whereas that of H. mirandae was influenced primarily by tree diameter. These results reflect a predictable relationship between the species and the respective covariates, in particular in the case of H. mirandae. Occupancy and detection probabilities did not vary systematically between seasons. The conditional occupancy indicated that the two species co-occur through an aggregative relationship. The co-occurrence pattern identified here may be attributable to the fragmentation and environmental degradation of the study area, which may have influenced the habitat preferences of the species. These findings provide a better understanding of how the two species select and use their habitats, particularly by showing the effects of topography and vegetation on tody-tyrants. This information will be especially important for developing effective conservation strategies for H. mirandae, a vulnerable species with a restricted geographic distribution.
Assessing correlations of perovskite catalytic performance with electronic structure descriptors
Creators: name: Jacobs, Ryan
name: Hwang, Jonathan
name: Shao-Horn, Yang
name: Morgan, Dane
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic structure descriptors are computationally efficient quantities used to construct qualitative correlations for a variety of properties. In particular, the oxygen p-band center has been used to guide material discovery and fundamental understanding of an array of perovskite compounds for use in catalyzing the oxygen reduction and evolution reactions. However, an assessment of the effectiveness of the oxygen p-band center at predicting key measures of perovskite catalytic activity has not been made, and would be highly beneficial to guide future predictions and codify best practices. Here, we have used Density Functional Theory at the PBE, PBEsol, PBE+U, SCAN and HSE06 levels to assess the correlations of numerous measures of catalytic performance for a series of technologically relevant perovskite oxides, using the bulk oxygen p-band center as an electronic structure descriptor. We have analyzed correlations of the calculated oxygen p-band center for all considered functionals with the experimentally measured X-ray emission spectroscopy oxygen p-band center and multiple measures of catalytic activity, including high temperature oxygen reduction surface exchange rates, aqueous oxygen evolution current densities, and binding energies of oxygen evolution intermediate species. Our results show that the best correlations for all measures of catalytic activity considered here are made with PBE-level calculations, with strong observed linear correlations with the bulk oxygen p-band center (R2 = 0.81-0.87). This study shows that strong linear correlations between numerous important measures of catalytic activity and the oxygen p-band bulk descriptor can be obtained under a consistent computational framework, and these correlations can serve as a guide for future experiments and simulations for development of perovskite and related oxide catalysts.
Additional file 1 of RefGenes: identification of reliable and condition specific reference genes for RT-qPCR data normalization
Creators: name: Hruz, Tomas
name: Wyss, Markus
name: Mylene Docquier
name: Pfaffl, Michael W
name: Masanetz, Sabine
name: Borghi, Lorenzo
name: Verbrugghe, Phebe
name: Kalaydjieva, Luba
name: Bleuler, Stefan
name: Laule, Oliver
name: Descombes, Patrick
name: Gruissem, Wilhelm
name: Zimmermann, Philip
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1:List of publications related to reference gene validation. Publications that report about the validation of small sets of commonly used reference genes for various biological contexts. (PDF 77 KB)
Análise de uma Comunidade Comunitária: Vilarinho da Furna VS Comunidade Portuguesa
Creators: name: Oliveira, Pedro Miguel Da Costa
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo, originário de um trabalho escrito para a Unidade Curricular de Estudos Interculturais, dá a conhecer um caso singular na história de Portugal: o da comunidade autossuficiente de Vilarinho da Furna. Auxiliado por pesquisa na internet, vários livros, o visionamento de um documentário e ainda por uma visita ao Centro Etnográfico de Vilarinho da Furna, é pretendido que haja compreensão e cambio intercultural como meio para o enriquecimento cultural e pessoal. Para tal, este artigo estrutura-se da seguinte forma: um enquadramento histórico da aldeia; a aplicação do programa da Unidade Curricular, estabelecendo frequentes comparações entre a aldeia e o país; o enquadramento sociocultural como elemento de formação de identidade; e, por último, uma análise da interculturalidade entre as duas sociedades em questão (a sociedade portuguesa e a sociedade relativamente isolada de Vilarinho da Furna).
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Collapse of a Bose Condensate with Attractive Interactions
Creators: name: Freire, Jose A.
name: Arovas, Daniel P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We examine the Gross-Pitaevskii (GP) model for Bose-Einstein condensates in parabolic traps with attractive interactions. The decay of metastable condensates is investigated by applying the instanton formalism to the GP field theory. Employing various dynamical trial states, we derive within a coherent state path integral approach a collective coordinate description in terms of the condensate radius, in agreement with (and extending) earlier results. We then solve numerically for the complete instanton field configuration and compare with the collective coordinate approach. Adjusting only the effective mass of the collective coordinate, the two schemes are then in good agreement.
description: 8 pages, 10 encapsulated PostScript figures
Training Set Camouflage
Creators: name: Sen, Ayon
name: Alfeld, Scott
name: Zhang, Xuezhou
name: Vartanian, Ara
name: Ma, Yuzhe
name: Zhu, Xiaojin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We introduce a form of steganography in the domain of machine learning which we call training set camouflage. Imagine Alice has a training set on an illicit machine learning classification task. Alice wants Bob (a machine learning system) to learn the task. However, sending either the training set or the trained model to Bob can raise suspicion if the communication is monitored. Training set camouflage allows Alice to compute a second training set on a completely different -- and seemingly benign -- classification task. By construction, sending the second training set will not raise suspicion. When Bob applies his standard (public) learning algorithm to the second training set, he approximately recovers the classifier on the original task. Training set camouflage is a novel form of steganography in machine learning. We formulate training set camouflage as a combinatorial bilevel optimization problem and propose solvers based on nonlinear programming and local search. Experiments on real classification tasks demonstrate the feasibility of such camouflage.
Tradução, Cultura e Globalização:O papel do tradutor como mediador cultural
Creators: name: Costa, Pedro
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: As relações identificáveis entre tradução, cultura e globalização realçam o papel do tradutor como mediador cultural. Este artigo, inspirado na leitura da obra “Translating Cultures” de David Katan, tenta explicar o conceito de cultura. Analisa-se ainda dois modelos de cultura: o Modelo de Camadas de Trompenaars e o Modelo da Tríade de Cultura de Edward T. Hall. Por último, ao falar da influência da globalização na difusão e proliferação da cultura, analisa-se o exemplo da “MacDonaldização” e a importância do tradutor como mediador cultural.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
O Genocídio dos Índios Nativos Norte Americanos
Creators: name: Gomes, Maria José De Sousa
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: A imagem dos índios nativos americanos transmitida pelos media só há poucos anos os separou do estereótipo de “selvagens incivilizados” e os passou a retratar como povos de culturas ricas. Numa tentativa de homenagear os povos nativos à América do Norte, este artigo destaca as práticas culturais da tribo dos Sioux e contextualiza acerca das políticas governamentais dos Estados Unidos para “civilizar” os povos nativos. A preservação das tradições dos povos é de suma importância, não só no âmbito dos Estudos Culturais, mas porque se trata de culturas ricas pertencentes à história da humanidade.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
The "Sasse Rami "agroforestry farm of Veneto Agricoltura - Italy
Creators: name: Mezzalira, Giustino
name: Panozzo, Anna
Publisher: name: Zenodo
Year: 2022
Subjects: Agroforestry
Alley cropping
Poplar

description: The “Sasse Rami” farm located in Ceregnano (RO) is the largest pilot and demonstrative farm for agroforestry farming in the North-East of Italy, own by Veneto Agricoltura Agency. In February 2018 Veneto Agricultura started implementing alley-cropping systems with poplars (Populus x canadensis) in the "Sasse Rami" pilot farm. 17 different poplar clones have been planted (i) in a specialized poplar grove with a 6 × 6 m block plantation (⁓290 trees ha-1) and (ii) in an alley-cropping system with NS oriented 38 m apart tree rows placed along drainage ditches (40 trees ha-1). In the alley-cropping system, each tree row hosts the same poplar clones planted in the specialized grove, and the inter-row is cultivated with arable annual crops (common wheat, soybean and sugar beet depending on the year).
Comparison of Higgs Boson Mass and Width Determination of the LHC and a Linear Collider
Creators: name: Drollinger, V.
name: Sopczak, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Two important properties of a Higgs boson are its mass and width. They may distinguish the Standard Model (SM) Higgs boson from Higgs bosons of extended models. We show results from a direct mass and width reconstruction for a Higgs boson mass range from 120 to 340 GeV. The mass and width have been reconstructed from the H --> ZZstar --> mu+mu-mu+mu- reaction in an LHC simulation of the CMS detector. The determined mass accuracy has been compared with that obtained from studies for a linear collider (LC). The mass precision from the latter studies is derived by scaling previous LC simulation results according to the expected event rates. For the Higgs boson width we compare a direct determination with indirect methods and find good complementarity.
description: 4 pages, 4 figures
Polythlipta macralis Lederer 1863
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Polythlipta
Polythlipta macralis

description: 1038. Polythlipta macralis Lederer, 1863: 389, 477, pl. 12 fig. 14
Type locality: Amboina [Ambon Island, Indonesia]
 = Polythlipta maceratalis (misspell.) (Lederer 1863: 477)
 Distribution. Indian records: Sikkim, Khasis, Nilgiris (Hampson 1896b), Darjeeling (West Bengal), Sikkim, Assam (Gupta 1994), India (Robinson et al. 1994), Assam (North Cachar Hills, Haflong, Diphu) (Kirti & Sodhi 2001). Global records: Ceylon, Tenasserim, Amboina (Hampson 1896b), Sri Lanka, Thailand, Bali, Sarawak, Ambon, New Guinea, montane (600–1800 m) (Robinson et al. 1994).
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 341, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Quantum Coulomb glass - Hartree-Fock approximation versus exact diagonalization
Creators: name: Epperlein, Frank
name: Schreiber, Michael
name: Vojta, Thomas
Publisher: name: arXiv
Year: 1997
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the behavior of disordered interacting electrons in the insulating regime. Our study is based on the quantum Coulomb glass model which is obtained from the classical Coulomb glass by adding hopping matrix elements between neighboring sites. We use two different numerical methods, viz. a Hartree-Fock approximation and an exact diagonalization and compare the results for the tunneling density of states and the localization properties in order to determine the range of validity of the Hartree-Fock method. We find that the Hartree-Fock method gives a good approximation for the density of states for all energies but represents the localization properties correctly close to the Fermi level only. Some consequences for the localization of disordered interacting electrons are discussed.
description: 3 pages RevTeX, 2 figures, to appear in Proc. VII Int. Conf. on Hopping and Related Phenomena
Portugal e Europa/Holanda – Diferenças Culturais nos Anos 70 e 80
Creators: name: Guimarães, Helena
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo, escrito na primeira pessoa do singular, retrata a minha experiência pessoal enquanto jovem portuguesa a viver na Holanda. Tencionei abordar as diferenças culturais na Europa dos anos 70 e 80, mas foquei-me maioritariamente na comparação Portugal-Holanda. Relato, assim, a minha jornada pessoal de emigração para a Holanda, bem como o processo de aculturação e assimilação na sociedade holandesa. Este artigo observa as diferenças de códigos de conduta, contextualiza o tempo e a realidade social nos dois países fulcrais e o processo de construção de identidade. Os temas abordados são de natureza variada (abrangendo desde a educação à migração) mas que por uma ou outra razão me marcaram pessoalmente e cujo conteúdo permite aprofundar o conceito de interculturalidade desenvolvido na Unidade Curricular de Estudos Interculturais.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
The algebraic structure of a cosmological term in spherically symmetric solutions
Creators: name: Dymnikova, Irina
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose to describe the dynamics of a cosmological term in the spherically symmetric case by an r-dependent second rank symmetric tensor invariant under boosts in the radial direction. This proposal is based on the Petrov classification scheme and Einstein field equations in the spherically symmetric case. The inflationary equation of state p=-ρis satisfied by the radial pressure. The tangential pressure is calculated from the conservation equation (the contracted Bianchi identity).
description: 5 pages Revtex, 5 figures; accepted to Phys.Lett.B
Etnias de Portugal: o caso dos ciganos
Creators: name: Azevedo, Ana Cláudia
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: No âmbito da Unidade Curricular de Estudos Interculturais foi proposta a execução de um trabalho: avaliar a aplicabilidade de interculturalidade numa exploração entre duas culturas. A pesquisa centrou-se em múltiplas páginas da internet focalizando hábitos, a integração da comunidade cigana na sociedade, comparar o passado e o presente e a imagem que a sociedade tem da etnia. Pretende-se, assim, compreender o isolamento cultural da comunidade cigana a partir de uma história com tendência a eliminar as características do povo.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Additional file 1: of Psychometric evaluation of an interview-administered version of the WHOQOL-BREF questionnaire for use in a cross-sectional study of a rural district in Bangladesh: an application of Rasch analysis
Creators: name: Uddin, Mohammed
name: Fakir M Islam
Publisher: name: figshare
Year: 2019
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Performance of the Rasch analysis of the WHOQOL-BREF domains (other four sub-samples of size nâ =â 300 each) (DOCX 36 kb)
Null limits of generalised Bonnor-Swaminarayan solutions
Creators: name: Podolsky, J.
name: Griffiths, J. B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Bonnor-Swaminarayan solutions are boost-rotation symmetric space-times which describe the motion of pairs of accelerating particles which are possibly connected to strings (struts). In an explicit and unified form we present a generalised class of such solutions with a few new observations. We then investigate the possible limits in which the accelerations become unbounded. The resulting space-times represent spherical impulsive gravitational waves with snapping or expanding cosmic strings. We also obtain an exact solution for a snapping string of finite length.
description: 13 pages LaTeX 2e. To appear in Gen. Rel. Grav
Current with "wrong" sign and phase transitions
Creators: name: Boccagna, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove that under certain conditions, phase separation is enough to sustain a regime in which current flows along the concentration gradient, a phenomenon which is known in the literature as \textit{uphill diffusion}. The model we consider here is a version of that proposed in [G. B. Giacomin, J. L. Lebowitz, Phase segregation dynamics in particle system with long range interactions, Journal of Statistical Physics 87(1) (1997): 37-61], which is the continuous mesoscopic limit of a $1d$ discrete Ising chain with a Kac potential. The magnetization profile lies in the interval $\left[-\varepsilon^{-1},\varepsilon^{-1}\right]$, $\varepsilon>0$, staying in contact at the boundaries with infinite reservoirs of fixed magnetization $\pmμ$, $μ\in(m^*\left(β\right),1)$, where $m^*\left(β\right)=\sqrt{1-1/β}$, $β>1$ representing the inverse temperature. At last, an external field of Heaviside-type of intensity $κ>0$ is introduced. According to the axiomatic non-equilibrium theory, we derive from the mesoscopic free energy functional the corresponding stationary equation and prove the existence of a solution, which is antisymmetric with respect to the origin and discontinuous in $x=0$, provided $\varepsilon$ is small enough. When $μ$ is metastable, the current is positive and bounded from below by a positive constant independent of $κ$, this meaning that both phase transition as well as external field contributes to uphill diffusion, which is a regime that actually survives when the external bias is removed.
Characterizing the heterogeneous contamination of commercial paper and board food packaging at different scales
Creators: name: Biant, Lucas
name: Nguyen, Phuong-Mai
name: Hayert, Murielle
name: Domenek, Sandra
name: Vitrac, Olivier
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Assessing the contamination of paper and board (P&B) food packaging materials poses significant challenges due to the sensitivity limits of analytical methods and the low precision of sampling processes. This study aims to enhance the understanding of P&B food packaging contamination by investigating the distribution of contaminants at different scales using a combination of chromatographic and spectroscopic techniques. A total of 36 substances were targeted, including phthalates, photoinitiators, and bisphenol A. Key findings reveal that intra-packaging variability can lead to concentration variations by a factor of 2–7. Recycled materials generally exhibit higher contamination levels, with concentrations of certain contaminants reaching up to 700 mg/kg. Microscopy, including confocal laser scanning microscopy (CLSM) and Raman micro-spectroscopy, enabled the identification and differentiation of contaminants, highlighting specific marker molecules and characteristic Raman bands. The study underscores the necessity of comprehensive sampling strategies, advocating for the grinding of entire packaging to obtain representative samples. The introduction of contamination "fingerprints," based on occurrences and correlations between concentrations, offers a promising approach for hazard identification and risk assessment. Overall, the findings contribute to the development of safer and more sustainable food packaging solutions, emphasizing the need for improved analytical techniques and standardized sampling methods in the context of increasing use of recycled materials.
África Minha
Creators: name: Correia, Adriana
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo surge de um trabalho para a Unidade Curricular de Estudos Interculturais focalizado na temática da Interculturalidade. Centrado no livro de memórias da autora Karen Blixen, onde descreve hábitos, culturas e rituais de diferentes povos africanos. Este livro e o seu sucessor oferecem ao leitor uma perspetiva extremamente perspicaz do colonialismo inglês na África Oriental. Através da malha textual, a autora demonstra a sua admiração e amor pelo continente. Este artigo, apresenta uma observação dual: por um lado, a vida da autora e por outro lado, as temáticas da interculturalidade.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Enzymatic synthesis of 1,3-oleic-2-medium chain triacylglycerols and strategy of controlling acyl migration: insights from experiment and molecular dynamics simulation
Creators: name: Peng, Bin
name: Yang, Jian-Yuan
name: Liu, Xianbiao
name: Hu, Jiang-Ning
name: Zheng, Liu-Feng
name: Li, Jing
name: Deng, Ze-Yuan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Medium- and long-chain triacylglycerols (MLCTs) with high 1,3-oleic-2-medium chain (OMO) triacylglycerols content were synthesized by the acidolysis reaction between Cinnamomum camphora seed oil (CCSO) and oleic acid, catalyzed by lipozyme RM IM. In addition, the simultaneous rate of acyl migration (RAM) was investigated during the esterification process. The maximal yield of OMO-structured triacylglycerols (YST) was up to 64.45% under the optimum condition: the molar ratio of CCSO to oleic acid, 1:4; enzyme dosage, 10 wt%; temperature, 60°C; and reaction time, 24 h. RAM was 28.66% at same time. It is shown that YST positively related to RAM at single experiments of the molar ratio (r2 = 0.999, P< .01), enzyme dosage (r2 = 0.988, P< .01), below 60°C of temperature (r2 = 0.923, P< .05) and within 24 h of reaction time (r2 = 0.940, P< .05). However, YST was negatively correlated with RAM at a temperature higher than 60°C (r2 = −0.682, P> .05) or a reaction time longer than 24 h (r2 = −0.594, P> .05). The effect of temperature on the reaction could be verified by molecular dynamics simulation, opened enzyme lids were increased with temperature elevated, and helped substrates invade into catalytic triad. When temperature rose to higher than 333 K (60°C), rearrangement of the catalytic triad was promoted, which resulted in both decreasing enzyme catalytic activity and irritating acyl migration. This study could help understand the trigger cause of acyl migration at high temperature, and conclusively reaction temperature was a vital factor to balance YST and RAM in a solvent-free system. OMO-structured triacylglycerols might possess a potential application as a new type of nutritional lipids for daily diet. Enzymatic Synthesis of 1,3-oleic-2-medium Chain Triacylglycerols and Strategy of Controlling Acyl Migration: Insights from Experiment and molecular dynamics simulation
Theoretical Evaluation of Electronic Density-of-states and Transport Effects on Field Emission from $n$-type Ultrananocrystalline Diamond Films
Creators: name: Chubenko, Oksana
name: Baturin, Stanislav S.
name: Baryshev, Sergey V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) films, representing an $n$-type highly conductive two-phase material comprised of $sp^3$ diamond grains and $sp^2$-rich graphitic grain boundaries, the current is carried by a high concentration of mobile electrons within the large-volume grain boundary networks. Fabricated in a simple thin-film planar form, (N)UNCD was found to be an efficient field emitter capable of emitting a significant amount of charge starting at the applied electric field as low as a few V/$μ$m which makes it a promising material for designing electron sources. Despite the semimetallic conduction, field emission (FE) characteristics of this material demonstrate a strong deviation from the Fowler-Nordheim law in a high-current-density regime when (N)UNCD field emitters switch from a diode-like to resistor-like behavior. Such phenomenon resembles the current-density saturation effect in conventional semiconductors. In the present paper, we adapt the formalism developed for conventional semiconductors to study current-density saturation in (N)UNCD field emitters. We provide a comprehensive theoretical investigation of ($i$) the influence of partial penetration of the electric field into the material, ($ii$) transport effects (such as electric-field-dependent mobility), and ($iii$) features of a complex density-of-states structure (position and shape of $π-π^*$ bands, controlling the concentration of charge carriers) on the FE characteristics of (N)UNCD. We show that the formation of the current-density saturation plateau can be explained by the limited supply of electrons within the impurity $π-π^*$ bands and decreasing electron mobility in high electric field. Theoretical calculations are consistent with experiment.
description: 15 pages, 14 figures
Prionopaltis subdentalis Swinhoe 1894
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Prionopaltis
Prionopaltis subdentalis

description: 1049. Prionopaltis subdentalis Swinhoe, 1894b: 147
Type locality: India, Meghalaya, Cherrapunji
Distribution. Indian records: Khasis (Hampson 1896b), Cherrapunji (Meghalaya) (Gupta 1994). Global records: unknown.
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 343, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Zsörk Vinehill in Hungary
Creators: name: Judit, Csikvari
Publisher: name: Zenodo
Year: 2020
Subjects: Agroforestry
Hedgerows
Shelterbelts

description: “Vinehills” are specific agricultural units in Hungary, and typically throughout Central Europe. These lands form well defined units on the bounds of settlements such as villages, towns or cities, and are typically divided into small plots (between 1000 m2 and 1 hectare). Historically, these areas were community lands of manyfold land use, prevalently vine and fruit production. Residents of nearby settlements used them to produce wine, fruits, nuts and vegetables, mostly for household consumption, occasionally selling the surplus. They typically had mixed purposes, producing also firewood, forage, construction material and grazing. Some families even built their houses and lived on there, in those cases the land functioned as small family farm.
"Traduzir em Portugal Durante o Estado Novo" de Tersa Seruya, Maria Lin Muniz e Alexandra Assis Rosa
Creators: name: Silva, Ivo Rafael
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Durante 4 décadas, publicações relacionadas com a ditadura militar repressiva e persecutória vivida em Portugal eram alvos de censura. Um dos esteios do regime, esta era praticada em todos os meios da comunicação social. Os livros e a escrita não eram exceção. Os autores alvo de censura viram-se obrigados a recorrer a pseudónimos, os tradutores viram-se forçados a passar à “inexistência”. Mesmo que tenha vindo a melhorar, a função do tradutor sempre foi menosprezada, e a tradução vista como uma mera etapa do processo tipográfico. Este livro surge, assim, do reconhecimento da falta de estudos sobre o tradutor no período do Estado Novo. Publicado em 2009, “Traduzir em Portugal durante o Estado Novo” é organizado por Teresa Seruya, Maria Lin Moniz e Alexandra Assis Rosa. A publicação versa distintos aspetos e é um importante contributo para a Hsitória do Estado Novo.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Vanishing of cosmological constant and fully localized gravity in a Brane World with extra time(s)
Creators: name: Berezhiani, Z.
name: Chaichian, M.
name: Kobakhidze, A. B.
name: Yu, Z. -H.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct an intersecting brane configuration in six-dimensional space with one extra space-like and one extra time-like dimensions. With a certain additional symmetry imposed on the extra space-time we have found that effective four-dimensional cosmological constant vanishes automatically, providing the static solution with gravity fully localized at the intersection region as there are no propagating massive modes of graviton. In this way, the same symmetry allows us to eliminate tachyonic states of graviton from the spectrum of the effective four-dimensional theory, thus avoiding phenomenological difficulties comming from the matter instability usually induced in theories with extra time-like dimensions.
description: 15 pages, comments and references added, version accepted in Phys. Lett. B
Semi-dual Regularized Optimal Transport
Creators: name: Cuturi, Marco
name: Peyré, Gabriel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Variational problems that involve Wasserstein distances and more generally optimal transport (OT) theory are playing an increasingly important role in data sciences. Such problems can be used to form an examplar measure out of various probability measures, as in the Wasserstein barycenter problem, or to carry out parametric inference and density fitting, where the loss is measured in terms of an optimal transport cost to the measure of observations. Despite being conceptually simple, such problems are computationally challenging because they involve minimizing over quantities (Wasserstein distances) that are themselves hard to compute. Entropic regularization has recently emerged as an efficient tool to approximate the solution of such variational Wasserstein problems. In this paper, we give a thorough duality tour of these regularization techniques. In particular, we show how important concepts from classical OT such as c-transforms and semi-discrete approaches translate into similar ideas in a regularized setting. These dual formulations lead to smooth variational problems, which can be solved using smooth, differentiable and convex optimization problems that are simpler to implement and numerically more stable that their un-regularized counterparts. We illustrate the versatility of this approach by applying it to the computation of Wasserstein barycenters and gradient flows of spatial regularization functionals.
China e Japão - uma análise intercultural contemporâne
Creators: name: Sousa, Sílvia
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Ao longo dos séculos, a China e o Japão foram criando histórias, representações, discursos e identidades que certas vezes se cruzaram e outras vezes se afastaram. Este trabalho é uma reflexão sobre cultura e interculturalidade, porque está relacionado com a produção e a circulação de significados (Hall, 1997:2), numa análise da identidade e da representação da China e do Japão e também das representações que estes dois países têm um do outro. Esta análise integra factos que vão desde a 1ª Guerra Mundial até à actualidade, tornando este estudo contemporâneo. Ao longo do meu trabalho, quando falo em representação, refiro-me à forma como o mundo é socialmente construído e representado por nós e para nós (Chris Barker 2000:8).
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Additional file 2 of RefGenes: identification of reliable and condition specific reference genes for RT-qPCR data normalization
Creators: name: Hruz, Tomas
name: Wyss, Markus
name: Mylene Docquier
name: Pfaffl, Michael W
name: Masanetz, Sabine
name: Borghi, Lorenzo
name: Verbrugghe, Phebe
name: Kalaydjieva, Luba
name: Bleuler, Stefan
name: Laule, Oliver
name: Descombes, Patrick
name: Gruissem, Wilhelm
name: Zimmermann, Philip
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2:Variance of gene expression across different array types. Standard deviation of signal intensity versus mean signal intensity for all probe sets from different Affymetrix array types available in Genevestigator. (PDF 847 KB)
The variation of the magnetic field of the Ap star HD~50169 over its 29 year rotation period
Creators: name: Mathys, G.
name: Romanyuk, I. I.
name: Hubrig, S.
name: Kudryavtsev, D. O.
name: Landstreet, J. D.
name: Schöller, M.
name: Semenko, E. A.
name: Yakunin, I. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The Ap stars that rotate extremely slowly, with periods of decades to centuries, represent one of the keys to the understanding of the processes leading to the differentiation of stellar rotation. Aims. We characterise the variations of the magnetic field of the Ap star HD 50169 and derive constraints about its structure. Methods. We combine published measurements of the mean longitudinal field of HD 50169 with new determinations of this field moment from circular spectropolarimetry obtained at the 6-m telescope BTA of the Special Astrophysical Observatory of the Russian Academy of Sciences. For the mean magnetic field modulus , literature data are complemented by the analysis of ESO spectra, both newly acquired and from the archive. Radial velocities are also obtained from these spectra. Results. We present the first determination of the rotation period of HD 50169, Prot = (29.04+/-0.82) y. HD 50169 is currently the longest-period Ap star for which magnetic field measurements have been obtained over more than a full cycle. The variation curves of both and  have a significant degree of anharmonicity, and there is a definite phase shift between their respective extrema. We confirm that HD 50169 is a wide spectroscopic binary, refine its orbital elements, and suggest that the secondary is probably a dwarf star of spectral type M. Conclusions. The shapes and mutual phase shifts of the derived magnetic variation curves unquestionably indicate that the magnetic field of HD 50169 is not symmetric about an axis passing through its centre. Overall, HD 50169 appears similar to the bulk of the long-period Ap stars.
description: 10 pages, 3 figures, accepted for publication in A&A
Os concursos literários e a atividade editorial da Livraria Latina Editora
Creators: name: Barbosa, Maria Do Rosário Ramada Pinho
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: O escritor, editor e livreiro, Henrique Perdigão funda, em 1942, a distinta Livraria Latina Editora. Esta destaca-se pela sua ação cultural, pela instituição de prémios literários e atividade editorial. Neste artigo, são listados os autores editados, o título das obras, o nome dos tradutores e diretores, assim como o ano de publicação das obras editadas. As primeiras 50 obras publicadas são divididas em 8 categorias distintas, sendo estas: romance; conto; poesia; livro técnico; manual escolar; coleção cultural Cadernos Azuis; coleção infantil Pinóquio; e coleção Autores Notáveis. A contribuição da Livraria Latina Editora e de Henrique Perdigão para a cultura são registadas neste artigo que pretende apenas colaborar num estudo mais extenso de temáticas relacionadas. Este artigo conta ainda com: a biografia de Henrique Perdigão; uma síntese da atividade editorial (acompanhada do itinerário editorial); e com a categorização das primeiras 50 obras publicadas.
description: E- Revista de Estudos Interculturais , N.º 1 (2013)
Complete Exact Solution of Diffusion-Limited Coalescence, A + A -> A
Creators: name: ben-Avraham, Daniel
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Some models of diffusion-limited reaction processes in one dimension lend themselves to exact analysis. The known approaches yield exact expressions for a limited number of quantities of interest, such as the particle concentration, or the distribution of distances between nearest particles. However, a full characterization of a particle system is only provided by the infinite hierarchy of multiple-point density correlation functions. We derive an exact description of the full hierarchy of correlation functions for the diffusion-limited irreversible coalescence process A + A -> A.
description: 4 pages, 2 figures (postscript). Typeset with Revtex
Experimental-design-based optimization of dispersive liquid-liquid microextraction coupled with gas chromatography–negative-ion chemical ionization–mass spectrometry for the determination of pyrethroids in agricultural products and drinks
Creators: name: Wang, Yu-Chieh
name: Wang, Jia-Lin
name: Shu, Youn-Yuen
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Pyrethroids are synthetic chemicals that account for 16% of the international insecticide market and have been shown to be of varying toxicity to different species. There are various methods available for detecting pyrethroids in agricultural products, but these products must be pre-treated to remove interference from the food matrix, such as through dispersion liquid-liquid microextraction (DLLME). This study employed two experimental design methods to optimize the continuous and discontinuous experimental parameters of DLLME and investigated whether DLLME combined with GC-NICI-MS is effective for detecting pyrethroids in agricultural products. The Taguchi design with an L9(34) orthogonal array and response surface methodology were employed to optimize the discontinuous and continuous parameters of the DLLME process, respectively. To validate the performance of GC-NICI-MS after optimized DLLME, pyrethroids in mixed standard solutions at levels ranging from 0.02 to 50.00 µg/L were measured, and the resultant calibration curves were fitted. Adequate linearity was found for the six investigated pyrethroids (r = 0.9908–0.9960). The limits of detection and quantification ranged from 0.005 to 0.035 µg/L and 0.02 to 0.1 µg/L, respectively. The proposed approach simplifies the optimization of parameters compared to reported methods and achieves considerably lower limits of detection. The concept of mixed application based on the dual experimental design method can be applied to other regulated compounds to enhance the safety of agricultural products. The feasibility of the method was confirmed by successfully detecting pyrethroids in 13 types of teas, fruit, and vegetables.