48 research outputs found
Dynamics of Network Formation Processes in the Co-Author Model
No full textThis article studies the dynamics in the formation processes of a mutual consent network in game theory setting: the Co-Author Model. In this article, a limited observation is applied and analytical results are derived. Then, 2 parameters are varied: the number of individuals in the network and the initial probability of the links in the network in its initial state. A simulation result shows a finding that is consistent with an analytical result for a state of equilibrium while it also shows different possible equilibria.Dynamics, Network, Game Theory, Model,Simulation, Equilibrium, Complexity
Art Made by Artificial Intelligence: The Effect of Authorship on Aesthetic Judgments
No full textHuman-robot interaction requires that competent robot partners have a multiplicity of human characteristics. Can we accept that these competencies extend to the artistic domain, where humans have always expressed their uniqueness as a species? This study investigated whether aesthetic judgments evoked by abstract artworks vary depending on whether the author was believed to be a human or a robot. Adult participants were asked to give beauty (BJ) and liking (LJ) judgments, where BJ reflected artistic competence and LJ a more idiosyncratic, affective facet associated with the stimuli. Aesthetic judgments were made in a blind-baseline condition, devoid of authorship information, and a primed condition, where authorship information (human or robot) was provided. A significant variation was found in LJ and BJ between the blind and primed conditions. The human-authored paintings received a higher liking rating in the primed than the blind and robot conditions; opposite, the robot-authored paintings received a lower beauty rating in the primed than the blind condition. These results suggest a resistance to accepting artificial intelligence in the production of art and highlight the emotional component associated with human art-making. Furthermore, aesthetic judgments were correlated with the attribution of mental states to a human and a robot to evaluate what mental characteristics are most related to aesthetic judgments. Both BJ and LJ of robot-authored art were significantly associated with the mental ability of creativity, thus pinpointing this skill as a marker of human art-making
Art made by artificial intelligence: The effect of authorship on aesthetic judgments.
No full textHuman–robot interaction requires that competent robot partners have a multiplicity of human characteristics. Can we accept that these competencies extend to the artistic domain, where humans have always expressed their uniqueness as a species? This study investigated whether aesthetic judgments evoked by abstract artworks vary depending on whether the author was believed to be a human or a robot. Adult participants were asked to give beauty (BJ) and liking (LJ) judgments, where BJ reflected artistic competence and LJ a more idiosyncratic, affective facet associated with the stimuli. Aesthetic judgments weremade in a blind-baseline condition, devoid of authorship information, and a primed condition, where authorship information (human or robot) was provided. A significant variation was found in LJ and BJ between the blind and primed conditions. The human-authored paintings received a higher liking rating in the primed than the blind and robot conditions; opposite, the robot-authored paintings received a lower beauty rating in the primed than the blind condition. These results suggest a resistance to accepting artificial intelligence in the production of art and highlight the emotional component associated with human art-making. Furthermore, aesthetic judgments were correlated with the attribution of mental states to a human and a robot to evaluate what mental characteristics are most related to aesthetic judgments. Both BJ and LJ of robot-authored art were significantly associated with the mental ability of creativity, thus pinpointing this skill as a marker of human art-making
Efeito de doses de gesso agrícola e alterações químicas ocorridas no perfil do solo em sistema de plantio direto consolidado cultivado com soja.
No full textO Plantio direto é uma prática que vem sendo utilizada com frequência na última década, devido as melhorias que este sistema pode trazer as características físico-químicas do solo
PROCESOS DE CONSTRUCCIÓN Y ORGANIZACIÓN DE LA DEPARTAMENTALIZACIÓN EN LA UNCUYO
No full textEl trabajo presenta los avances en una línea de investigación cualitativa iniciada en el 2005 acerca del análisis interpretativo de las políticas de gobernabilidad de la gestión universitaria en el ámbito de la Universidad Nacional de Cuyo, Mendoza, Argentina. En este período se focaliza el problema de estudio en comprender los procesos decisionales de la gestión presentes en las Asambleas Universitarias y su relación con medidas tendientes a la reforma en la organización, es decir, la departamentalización. Estos antecedentes orientan al objetivo central actual: especificar las políticas de gestión inherentes a los procesos de construcción y organización académica departamentalizada en el ámbito de la Universidad Nacional de Cuyo, en el marco de las reformas estatutarias. La universidad representa un sistema abierto y contingente. La totalidad dinámica de la UNCUYO se encuentra en transición, resignificándose su configuración organizacional, donde lo tradicional y lo moderno son parte de un sistema que evoluciona. El modelo departamental que se aplica hoy en el mundo, difiere según las realidades y posibilidades de cada universidad; puesto que sus premisas de organización y funcionamiento son diferentes. Esto hace que al analizarlas no se las puede considerar semejantes, ni aplicárseles las mismas lógicas y razonamientos académicos, administrativos y políticos, ni los mismos indicadores y parámetros para su comparación. Se pretende con esta presentación dar cuenta de las expresiones y decisiones que emergen de la propuesta de gestión de reforma estatutaria, de cara a la Asamblea, funcionales al modelo matricial departamentalizado. El método utilizado es la teoría basada en datos o método de comparación constante. Aún en etapa inicial, se cuenta con primeras aproximaciones que supondrían una estrategia de consecución de objetivos parciales y acotados para la reforma organizacional paulatina
Apropriação de praças públicas centrais em cidades de pequeno porte
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Arquitetura e UrbanismoPara que as praças públicas atuem como espaços urbanos de permanência é desejável que apresentem qualidade física e ambiental. A crescente especialização do espaço dentro da cidade, o deslocamento das formas de entretenimento para recintos fechados, o crescimento do uso de veículos e as condições da vida urbana atual mostram alterações nas formas de apropriação das praças públicas. Para compreender o funcionamento das praças centrais é necessário estudar a relação entre usos, funções e aspectos físico-ambientais destas com o entorno imediato e seu papel na cidade. Para entender o fenômeno de apropriação das praças públicas centrais realizamos duas etapas distintas: a revisão de literatura e a pesquisa de campo. Na revisão de literatura, discutimos os seguintes temas: centros urbanos, espaços livres e praças públicas centrais. A pesquisa de campo foi realizada em seis praças localizadas nas cidades catarinenses de Tubarão, Braço do Norte e Laguna. A metodologia adotada foi o Estudo de Caso, no qual se utilizaram os seguintes procedimentos: análise documental, observação do desempenho físico-ambiental da praça e do comportamento do usuário, através das técnicas de entrevista e jogo. A aplicação destes métodos auxiliou no entendimento do fenômeno de apropriação das praças públicas centrais, pois, além de demonstrar a situação atual que as praças se encontram, permitiu identificar a opinião de quem se apropria ou não desses espaços. Assim, a partir da sistematização dos dados obtidos são apresentados parâmetros comuns com base nas análises das situações encontradas que visam uma qualificação das praças e uma maior apropriação por parte dos habitantes de cada cidade onde elas se encontram. To that the public squares act as urban spaces of permanence, it.s desirable that they present physical and ambient quality. The increasing specialization of the space inside of the city, the displacement of the forms of entertainment for closed enclosures, the growth of the use of vehicles and the conditions of the actual urban life show alterations in the forms of appropriation of the public squares. To understand the functioning of the central squares it is necessary to study the relation between uses, functions and physicist-ambient aspects of these with neighborhood and its paper in the city. To understand the phenomenon of appropriation of the central public squares offices we carry through two distinct stages: the revision of literature and the field research. In the literature revision, we argue the following subjects: urban centers, free spaces and central public squares. The field research was carried through in six squares located in the catarinenses cities of Tubarao, Braco do Norte and Laguna. The adopted methodology was the Study of Case, in which they had used the following procedures: documentary analysis, observation of the physicist-ambient performance of the square and the behavior of the user, through the techniques of interview and game. The application of these methods assisted in the agreement of the phenomenon of appropriation of the central public squares, therefore, beyond demonstrating the current situation that the squares if find, it allowed to identify the opinion of who if it appropriates or not of these spaces. Thus, from the systematization of the gotten datas are presented common parameters with basis of the analyses of the joined situations that aim at a qualification of the squares and a bigger appropriation on the part of the inhabitants of each city where they meet
A forma da cidade e sua apropriação: análise propositiva de diretrizes de arquitetura da cidade para Cumbayá em Quito/Equador
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Urbanismo, História e Arquitetura da CidadeEste trabalho busca entender a relação entre as diversas formas que a cidade vem adquirindo com o passar do tempo e as formas de apropriação contemporâneas, a partir de discussão teórica de conceitos e critérios de autores que discutem o desempenho da forma da cidade em relação à apropriação dos espaços públicos. Com base neste debate, elegemos critérios relacionados à apropriação nas escalas da estrutura da cidade e da configuração dos lugares, e procedeu-se à caracterização e análise da cidade contemporânea de Quito para verificar padrões espaciais diretamente associados com uma apropriação positiva da cidade na cultura quitenha. A partir dos critérios selecionados e dos padrões positivos identificados, lançamos diretrizes de projeto de arquitetura da cidade para uma área de expansão da cidade contemporânea de Quito no Equador - a Paróquia de Cumbayá - buscando responder a critérios de bom desempenho da forma urbana que potencializem a apropriação de seus espaços públicos.The research seeks to understand the relationship between the different forms that the city has acquired over time and contemporary forms of appropriation, based on a theoretical discussion of concepts and criteria of authors who discuss the performance of the form of the city in relation to the appropriation of public spaces. Based on this debate, we selected criteria related to appropriation, both at the scale of city structure and at the scale of place configuration, and proceeded to the characterization and analysis of the contemporary city of Quito in a search to identify spatial patterns directly associated with a positive appropriation of the city in Quito´s culture. The selected criteria and the positive patterns identified oriented the design guidelines here proposed for the architectural design of the Paróquia of Cumbayá - an area of expansion in the city of Quito, Ecuador - in an attempt to comply with the criteria of good urban form performance so as to enhance the appropriation of its public spaces
Correction to: Results from the European Union MAPEC_LIFE cohort study on air pollution and chromosomal damage in children: are public health policies sufficiently protective? (Environmental Sciences Europe, (2020), 32, 1, (74), 10.1186/s12302-020-00352-3)
No full textFollowing publication of the original article [1], the typesetters have missed to add the below listed study group author names in XML in author group section. The study group authors have been added to the author group and are presented correctly in this correction article. A minor change has been made to the electronic supplementary files by removing the yellow highlights and included in this correction. Study Group Authors: Andrea Festa1 Gaia Claudia Viviana Viola1 Ilaria Zerbini1 Cristina Fatigoni2 Sara Levorato2 Silvano Monarca2 Tania Salvatori2 Samuele Vannini2 Gabriele Donzelli3 Francesco Bagordo4 Mattia De Giorgi4 Marcello Guido4 Alessandra Panico4 Francesca Serio4 Maria Rosaria Tumolo4 Silvia Bonetta5 Marta Gea5 Giorgio Gilli5 Cristina Pignata5 Tiziana Schilirò5 Valeria Romanazzi5 Camilla Furia6 Beatrice Bruni7 Beatrice Casini7 Study Group Author Affiliations: 1Department of Medical and Surgical Specialties, Radiological Science and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy 2Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy 3Department of Biology, University of Pisa, 35/39 Via S. Zeno, 56127 Pisa, Italy 4Department of Biological and Environmental Science and Technology, University of Salento, 165 Via Monteroni, 73100 Lecce, Italy 5Department of Public Health and Pediatrics, University of Torino, 94 Piazza Polonia, 10126 Turin, Italy 6Brescia Municipality, 1 Piazza Repubblica, 25100 Brescia, Italy 7Department of Translational Research, N.T.M.S., University of Pisa, 35/39 Via S. Zeno, 56127 Pisa, Italy Author details 1 Department of Medical and Surgical Specialties, Radiological Science and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy. 2 Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy. 3 Department of Biology, University of Pisa, 35/39 Via S. Zeno, 56127 Pisa, Italy. 4 Department of Biological and Environmental Science and Technology, University of Salento, 165 Via Monteroni, 73100 Lecce, Italy. 5 Department of Public Health and Pediatrics, University of Torino, 94 Piazza Polonia, 10126 Turin, Italy. 6 Multi-sector and Technological Service Centre – CSMT Gestione S.c.a.r.l, 45 Via Branze, 25123 Brescia, Italy. 7 Brescia Municipality, 1 Piazza Repubblica, 25100 Brescia, Italy. 8 Department of Statistic, Computer Science, Applications, University of Florence, 59 Viale Morgagni, 50134 Florence, Italy
SYNTHESIS OF C-GLYCOSYL AMINO ACIDS AS STABLE BUILDING BLOCKS FOR MODIFIED GLYCOPEPTIDE SYNTHESIS
No full textIn this thesis, we have studied and synthesized new class of C-glycosly amino acids whose structure features a
hetrocycle ring holding the carbohydrate and the amino acid fragments. Pyridine and tetrazole rings were used as
hetrocycle linkers in this project. This class of C-glycosyl amino acids is of interest as new chealtors and as building
building blocks for cotranslational glycopeptides synthesis. In the first part, C-Glycosylmethyl pyridylalanines were
synthesized via thermally induced Hantzsch-type cyclocondensation using an aldehyde-ketoester-enamino ester system.
To one of these reagents was attached a C-glycosyl residue, while to another was bound an amino acid fragment. In a
one-pot optimized methodology, the dihydropyridine was not isolated while its purification was carried out by removal
of unreacted material and side products using polymer-supported scavengers. Then the dihydropyridine (mixture of
diastereoisomers) was oxidized by a polymer-bound oxidant to give the target pyridine bearing the two bioactive
residues. In this way, a range of eight compounds (58-68% yield) was prepared in which the elements of diversity were
(i) the gluco and galacto configurations of the pyranose ring, (ii) the α- and β-configurations at the anomeric center, and
(iii) the positions of the carbohydrate and amino acid sectors in the pyridine ring. The orthogonal functional group
protection in these amino acids allowed their easy incorporation into oligopeptides via sequential amino and carboxylic
group coupling.
In the second part, tetrazole moiety was constructed via Huisgen 1,3-dipolar cycloaddition between nitriles and organic
azides. Two sets of compounds have been prepared, one being constituted of C-galactosyl and C-ribosyl O-tetrazolyl
serines, while the other contains S-tetrazolyl cysteine derivatives. In both cases, the synthetic scheme involved a twostep
route: the first one being the thermal cycloaddition of a sugar azide with p-toluensulfonyl cyanide (TsCN) to give a
1-substituted 5-sulfonyl tetrazole and the second the replacement of the tosyl group with a serine or cysteine residue.
For the high efficiency and operational simplicity, the azide-TsCN cycloaddition appears to be a true click process.
Finally, one of the amino acids prepared was incorporated into a tripeptid
