7,402 research outputs found
President of Crimea. Constitution : Author(s) Autonomous Republic of Xena-Maria
No full textIn this essay, two voices are heared, from two women: a certain artist Xena, who talks about her life and its dramas, interwoven with her own experiences from her diaries; and the voice of Maria, who analyzes Xena's life story and her art, diffracted through the prim of the history of 21stC art. Art the outset, "President of Crimea. Constitution", announces its author as Xena-Maria; but it is not yet clear whether the author is one person or two, nor who they are. Is it Maria who writes here, or Xena, or both? Or are they one and the same person? But at the end of the story, which is told rather in a form of certain legends and fairy tales, Maria and Xena turn into one whole, and meaningfully put an ellipsis after the words "to be continued". This reception was specially intended by the artist Maria Kulikovska, author of this essay, in order to protect both herself and the reader from possible persecutions by migration services and goverment officials of various countries, especially Russia. Also, for her it is an opportunity to step aside and analyze her own life and art form a third person, about which, perhaps, a fictional character from her childhood talks - a sensible step for Maria Kulikovska. The step that her creative language conceptually continues is to replicate casts of her own body and establish them in different spaces and contexts. So she fairly confuses the viewer as to where is the truth, and where is fiction; where is herself, and where is her clone - only now, here, she has applied the same trick in her text. This essay tells a very personal story of the life of a human body, a migrant woman in forced relocation, displacements, alienation and persecutions for her views on life and the conduct of society, and for her moral values expressed throught architecture, sculpture, drawings, performances, actions and public statements. Through the prism of geopolitical upheavals, it tells the artist's own story: How her analysis of own body position and boundaries helped her overcome stigma regarding the body of a woman from Eastern Europe, and how art can save and redeem in an unending inner drama.
O curso de licenciatura em educação física da Universidade Federal de Santa Catarina: suas concepções de ensino e de educação física
No full textDissertação (mestrado) - Universidade Federal de Santa Maria. Centro de Educação Fisica e Desporto
Datasets and model for "Machine Learning for Impurity Charge-State Transition Levels in Semiconductors from Elemental Properties using Multi-Fidelity datasets"
No full textDatasets and model for paper:Machine Learning for Impurity Charge-State Transition Levels in Semiconductors from Elemental Properties using Multi-Fidelity datasetsby Maciej P. Polak, Ryan Jacobs, Arun Mannodi-Kanakkithodi, Maria K. Y. Chan and Dane MorganPublished in: J. Chem. Phys. (2022)https://doi.org/10.1063/5.0083877</div
RCSB Protein Data Bank: A Resource for Chemical, Biochemical, and Structural Explorations of Large and Small Biomolecules
No full textThe Research Collaboratory for Structural Bioinformatics (RCSB) Protein Data Bank (PDB) supports scientific research and education worldwide by providing access to annotated information about three-dimensional (3D) structures of macromolecules (e.g., nucleic acids, proteins), and associated small molecules (e.g., drugs, cofactors, inhibitors) in the PDB archive. Researchers, educators, and students use RCSB PDB resources to study the shape and interactions of biological molecules and their implications in molecular biology, medicine, biotechnology, and beyond. RCSB PDB supports development of standards for data deposition, representation, annotation, and validation of atomic structural data obtained from various experimental methods. Uniform representation of PDB data is essential for providing consistent search and analysis capabilities for all PDB users, from beginning students to domain experts. The RCSB PDB Web site provides tools for searching, visualizing, and analyzing PDB data, including easy exploration of chemical interactions that stabilize macromolecules and play important roles in their interactions and functions. In addition, educational resources are available for free and unrestricted use in the classroom for exploring chemistry and biology at the molecular level.This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical Education, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acs.jchemed.5b00404Peer reviewe
CHAPTER 21. Scattering Studies on Natural Rubber Based Blends and IPNs
No full textTo optimize the design of rubber-based materials, a thorough and detailed knowledge of their structure and morphology is paramount. Under this point of view, scattering and diffraction techniques are extremely useful and informative. Scattering techniques are especially suited for characterizing heterophasic blends because they are sensitive to fluctuations of the composition, therefore yielding useful information on the mutual dispersion of the polymers composing the material. This chapter offers brief introductions on wide-angle X-ray diffraction, small-angle X-ray scattering, small-angle neutron scattering, and light scattering, and it presents a number of examples where these techniques were determinant for the investigation. It should not thus be intended as a ‘textbook’ on these techniques but as a collection of stimulating approaches, among which the reader could find the most suitable solution for his or her particular characterization problem
Awful disclosures of Maria Monk : as exhibited in a narrative of her sufferings during a residence of five years as a novice, and two years as a black nun, in the Hotel Dieu Nunnery at Montreal
No full textMaria Monk's personal narrative as related to Theodore Dwight. Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte. Cf. New York herald, Aug. 12, 1836, p.2, col. 1 : The Colophon, pt. 17, 1934; Sabin and Gagnon, P. Essai de bibl. can. Dwight, Theodore, 1796-1866; Slocum, J. J. (John Jay), 1803-1863, supposed author; Hoyte, William K., 9from old Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte.Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte
PDF: Awful disclosures of Maria Monk : as exhibited in a narrative of her sufferings during a residence of five years as a novice, and two years as a black nun, in the Hotel Dieu Nunnery at Montreal
No full textHigh quality PDF version of Maria Monk's personal narrative as related to Theodore Dwight. Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte. Cf. New York herald, Aug. 12, 1836, p.2, col. 1 : The Colophon, pt. 17, 1934; Sabin and Gagnon, P. Essai de bibl. can. Dwight, Theodore, 1796-1866; Slocum, J. J. (John Jay), 1803-1863, supposed author; Hoyte, William K., 9from old Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte.Maria Monk's personal narrative as related to Theodore Dwight. Has also been ascribed to John J. Slocum and to William K. Hoyte
Prediction of semiconductor band edge positions in aqueous environments from first principles
No full textThe ability to predict a semiconductor's band edge positions in solution is important for the design of water-splitting photocatalyst materials. In this paper, we introduce a first-principles method to compute the conduction-band minima of semiconductors relative to the water H2O/H2 [H subscript 2 O / H subscript 2] level using density functional theory with semilocal functionals and classical molecular dynamics. We test the method on six well known photocatalyst materials: TiO2 [Ti O subscript 2], WO3 [W O subscript 3], CdS, ZnSe, GaAs, and GaP. The predicted band edge positions are within 0.34 eV of the experimental data, with a mean absolute error of 0.19 eV.Eni S.p.A. (Firm)Eni-MIT Solar Frontiers CenterChesonis Family FoundationMIT Solar Revolution ProjectNational Science Foundation (U. S.) (Grant no. TG-DMR970008S
First-principles electronic structure and relative stability of pyrite and marcasite: Implications for photovoltaic performance
No full textDespite the many advantages (e.g., suitable band gap, exceptional optical absorptivity, earth abundance) of pyrite as a photovoltaic material, its low open-circuit voltage (OCV) has remained the biggest challenge preventing its use in practical devices. Two of the most widely accepted reasons for the cause of the low OCV are (i) Fermi level pinning due to intrinsic surface states that appear as gap states, and (ii) the presence of the metastable polymorph, marcasite. In this paper, we investigate these claims, via density-functional theory, by examining the electronic structure, bulk, surface, and interfacial energies of pyrite and marcasite. Regardless of whether the Hubbard U correction is applied, the intrinsic {100} surface states are found to be of dz2 character, as expected from ligand field theory. However, they are not gap states but rather located at the conduction-band edge. Thus, ligand field splitting at the symmetry-broken surface cannot be the sole cause of the low OCV. We also investigate epitaxial growth of marcasite on pyrite. Based on the surface, interfacial, and strain energies of pyrite and marcasite, we find from our model that only one layer of epitaxial growth of marcasite is thermodynamically favorable. Within all methods used (LDA, GGA-PBE, GGA-PBE+U, GGA-AM05, GGA-AM05+U, HSE06, and delta-sol), the marcasite band gap is not less than the pyrite band gap, and is even larger than the experimental marcasite gap. Moreover, gap states are not observed at the pyrite-marcasite interface. We conclude that intrinsic surface states or the presence of marcasite are unlikely to undermine the photovoltaic performance of pyrite.United States. Dept. of Energy (contract DE-FG02-96ER45571)National Science Foundation (U.S.) (TeraGrid resources provided by Texas Advanced ComputingCenter (TACC) under grant TG-DMR970008S.
Cloning MafF by recognition site screening with the NFE2 tandem repeat of HS2: analysis of its role in globin and GCSl genes regulation
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