EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Prof Peter Skabara is the Ramsay Chair of Chemistry at the University of Glasgow and the Deputy-Editor-in-Chief and Chair of the Journal of Materials Chemistry C. He is the author of over 180 papers, focusing on the synthesis and application of new materials for organic electronics. Prof Skabara is the recipient of a Royal Society Wolfson Research Merit Award holder, which was gained for his research into monodisperse macromolecular conjugated materials for photonic applications.
Twisted and other non-conventional conjugated architectures: switching functionality from charge transport to photonic applications
Prof Peter Skabara
Ramsay Chair of Chemistry at the University of Glasgow
Resumen:
Keywords: Conjugated macromolecules, electron donors, oligofluorene, oligothiophene, charge transport
Summary: The synthesis and properties of some complex star-shaped conjugated architectures will be reported.
We have synthesised a series of well-defined, monodisperse oligothiophenes bearing a bridging, fused tetrathiafulvalene (TTF) unit and the much lesser known tetrathiocin heterocycle. The materials exhibit complex redox chemistry for longer conjugated analogues and they can be oxidised up to the octacation within a relatively narrow potential window. The methodology used to 
construct the end-capped oligothiophene chains has enabled us to explore a new range of Ge centred cruciform structures, in which the central bridging atom of the molecule provides a tetrahedral geometry. Whilst these materials are candidates for applications requiring good charge transport properties, we have also been investigating oligofluorene star-shaped structures for photonics and sensor applications and we report several series of new materials with multifunctional architectures. In this presentation we report on the synthesis, self-assembly and properties of these monodisperse macromolecules.
Fecha: 27 de septiembre de 2018 – (jueves) Lugar: Sala 114 – Sala del reuniones del Departamento de Física – Horário: 10:15 a.m.
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Chemistry in the world of physics. How to unify the knowledge and get sensible results
Prof. Przemyslaw Data
Salesian University of Technology, Poland
Fecha: 24 de sepetiembre de 2018 – (lunes) Lugar: Sala 212 – Auditorio del Departamento de Física – Horário: 10:15 a.m.
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Quinto Encontrinho sobre Física de Hádrons
Resumen:
9:00 – 9:20 – Kauan Marquez (D)– Transição de fases e conversão estelar
9:20 – 9:30 – Maylon Morais (IC)– Estrelas de neutrons e o gás ideal
9:30 – 9:50 – Tadeu Pires (IC)– Equações de Estado
9:50 – 10:15 – Luiza Spanamberg (IC)+ Betânia Backes (IC) – Ordem de magnitude da física que descreve estrelas de nêutrons
intervalo
10:30- 10:50 – Carline Biesdorf (M)– Transição de fases e o diagrama da QCD
10:50- 11:10 – Clésio Evangelista (D)– Da TOV a gravidade modificada
11:10 -11:30 – César Vasquez Flores (PD) – Estrelas compactas na era das ondas gravitacionais
Com a participação especial de Isabella Marzola (M) e ajuda de Karina Buss (E) e Beatriz Nattrodt (E)
PD= pós-doutorando / D= doutorando / M=mestranda / IC= alunos de iniciação científica / E = alunos de extensão
Fecha: 18 de septiembre de 2018 – (martes) Lugar: Sala 114 – Sala del reuniones del Departamento de Física – Horário: Das 9 horas às 11h30min
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Stochastic oscillations, power law avalanches and dragon kings in quasi-critical systems
Prof. Dr. Osame Kinouchi
Departamento de Física – FFCLRP – USP
Resumen:
In the last decade, several models with network adaptive mechanisms (link deletion-creation, dynamic synapses, dynamic gains) have been proposed as examples of self-organized criticality (SOC) to explain neuronal avalanches. However, all these systems present stochastic oscillations hovering around the critical region that are incompatible with standard SOC and has been called self-organized quasi-criticality (SOqC). Here we make a linear stability analysis of the mean field fixed points of a SOqC model of discrete time stochastic spiking neurons. Firing rate adaptation, produced by dynamic neuronal gains, tunes the system toward the critical region. We find that the fixed points correspond to barely stable spirals that turn out indifferent at criticality where a Neimark-Sacker bifurcation occurs. This near indifference means that finite-size fluctuations can excite stochastic oscillations and avalanches, producing a mechanism for the emergence of dragon king events. The coexistence of these different types of neuronal activity is an experimental prediction that differs from standard SOC models.
Fecha: 14 de sepetiembre de 2018 – (viernes) Lugar: Sala 212 – Auditorio del Departamento de Física – Horário: 10:15 a.m.
El Programa de Posgrado en Física invita a todos para:
Examen de Cualificación al Doctorado
Igor Dornelles Schoeller Siciliani
Aplicações de Mecânica Estatística em Econofísica, Mineração de Textos e Neurociência
Jurados
Prof. Dr. Marcelo Henrique Romano Tragtenberg – (presidente) – UFSC/FSC
Prof. Dr. Osame Kinouchi Filho – (miembro externo) – USP
Prof. Dr. Lucas Nicolao – (miembro titular) – UFSC/FSC
Prof. Dr. Eraldo Sérgio Barobosa da Silva – (miembro titular) – UFSC/CMN
Fecha: 13 de septiembre de 2018- quinta-feira – Horario: 2 p.m. – Lugar: Auditório Airton Silva – (piso térreo do Departamento de Matemática)
El programa de Posgrado en Física invita a todos para la:
Sustentación de Disertación
Thomas Zerrenner Flórido
ANÁLISE DE LINHAS DE EMISSÃO EM GALÁXIAS: O GÁS DIFUSO IONIZADO NAS GALÁXIAS DO MaNGA
Jurados
Profª. Drª. Natalia Vale Asari – (presidente) – UFSC/FSC
Prof. Dr. Rogemar André Riffel – (miembro externo) – UFSM
Prof. Dr. Abilio Mateus Junior – (miembro titular) – UFSC/FSC
Fecha: 12 de septiembre de 2018 – miércoles – Horario: 2:00 p.m. – Lugar: Sala 202 – Departamento de Matemática
El programa de Posgrado en Física invita a todos para la:
Sustentación de Disertación
Mateus Tomazini Kinasz
CRITICALIDADE NO CONECTOMA
Jurados
Prof. Dr. Marcelo Henrique Romano Tragtenberg – (presidente) – UFSC/FSC
Prof. Dr. Nuno Miguel Melo Crokidakis Peregrino – (miembro externo) – UFF
Prof. Dr. Nilton da Silva Branco – (miembro titular) – UFSC/FSC
Fecha: 11 de septiembre de 2018 – martes – Horario: 2:00 p.m. – Lugar: Sala PG-1 – Departamento de Química (subsolo)
El programa de Posgrado en Física invita a todos para la:
Sustentación de Disertación
Laura Antonia Barth Martinez
Transição de fase em camadas de redes neuronais
Jurados
Prof. Dr. Marcelo Henrique Romano Tragtenberg – (presidente) – UFSC/FSC
Prof. Dr. Marco Aurélio Pires Idiart – (miembro externo) – UFRGS
Prof. Dr. Germano Heinzelmann – (miembro titular) – UFSC/FSC
Fecha: 5 de septiembre de 2018 – viernes – Horario: 9:00 a.m. – Lugar: Sala 114 – Sala de Reuniones del Departamento de Física
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Classical and quantum bounds on multi-system equality
Ernesto F. Galvão – UFF
Resumen:
I will describe how we can use logic to impose constraints on the probability of the conjunction (AND) of n propositions. This is an example of logical coherence inequalities that were first investigated by George Boole (1854). By taking each proposition to be about the equality of two systems, we obtain a logical coherence condition for the joint equality of multiple systems. I will then show that quantum mechanics violates this condition, and obtain bounds for the quantum violation. This enables us to bound the value of unmeasured two-state overlaps, with applications in quantum optics and quantum information.
This is joint work with Daniel Brod.
Fecha: sexta-feira, agosto 31, 2018 – (viernes) Lugar: Sala 212 – Auditorio del Departamento de Física – Horário: 10:15 a.m.
El programa de Posgrado en Física invita a todos para la:
Sustentación de Disertación
Eduardo Lucas Lorenzon
SIMULAÇÃO DE MONTE CARLO PARA A TRANSIÇÃO DE FASE DE UMA LIGA DE FERRO E PLATINA
Jurados
Prof. Dr. Lucas Nicolao – (presidente) – UFSC/FSC
Prof. Dr. Evy Augusto Salcedo Torres – (miembro externo) – UFSC/FSC
Prof. Dr. Marcelo Henrique Romano Tragtenberg – (miembro titular) – UFSC/FSC
Fecha: 28 de agosto de 2018 – martes – Horario: 10:00 a.m. – Lugar: Sala 114 – Sala de Reuniones del Departamento de Física
construct the end-capped oligothiophene chains has enabled us to explore a new range of Ge centred cruciform structures, in which the central bridging atom of the molecule provides a tetrahedral geometry. Whilst these materials are candidates for applications requiring good charge transport properties, we have also been investigating oligofluorene star-shaped structures for photonics and sensor applications and we report several series of new materials with multifunctional architectures. In this presentation we report on the synthesis, self-assembly and properties of these monodisperse macromolecules.
