Colóquios Agendados

From the quantum mechanics superposition principle to high precision measurements passing through the projection postulate | Colóquio IFUSP

Data de Início: 
quinta-feira, 21 Maio, 2026 - 16:00
Palestrante: 
Carlos L. Garrido Alzar - CNRS (França)
Local: 
Auditório Abrahão de Moraes
 

Sobre o evento:

It is already well established that Quantum Mechanics is more than just a beautiful theory of Nature. Its several postulates and principles are today used in several everyday instruments and devices, ranging from medical diagnosis via nuclear magnetic resonance imaging, USB flash memory sticks, house and city lightings based on light-emitting diodes, time references in the GNSS positioning, superconducting gravimeters up to high precision time-frequency standards. In particular, the working physics ground of the latter is the quantum superposition principle, one of the fundamental principles of Quantum Mechanics. Moreover, in combination with the projection postulate, specific quantum states of matter can be generated in order to improve the measurement performance of some of them. In this colloquium, we will see practical examples of the application of these principles and postulates.

Minibiografia do palestrante: 

O Dr. Carlos L. Garrido Alzar faz parte do pilar de tecnologias quânticas do International Research Center (IRC) CNRS-USP. Os IRCs do CNRS têm sido uma iniciativa importante do CNRS para fortalecer as colaborações científicas entre a França e outros países. Em 2024, um novo IRC foi financiado no Brasil tendo a Universidade de São Paulo (USP) como parceira. Sete pilares estratégicos foram delineados, sendo um deles o Pilar de Ciência e Tecnologia Quântica. Este pilar é atualmente liderado por Robin Kaiser (INPHYNI), pelo lado francês, e por Paulo Nussenzveig (IF-USP), Rafael Barros (IF-USP) e Patricia C. M. Castilho (IFSC-USP), pelo lado brasileiro, e alguns eventos já foram organizados no âmbito deste pilar.que tem como objetivo fomentar colaborações de longo prazo entre pesquisadores da USP e do CNRS.
 
Acessos:
  • Auditório Abrahão de Moraes
  • Transmissão pública: acompanhe pelo YouTube do IFUSP.

 

The (upcoming?) role of AI in x-ray imaging | Colóquio IFUSP

Data de Início: 
quinta-feira, 28 Maio, 2026 - 16:00
Palestrante: 
Ioannis Sechopoulos - Radboud University Medical Center, Holanda
Local: 
Auditório Abrahão de Moraes
 

Sobre o evento:

It seems that artificial intelligence is all anyone talks about these days. Deep learning, Claude, ChatGPT, self-driving cars—all these terms and concepts have permeated our daily lives, and while some have become indispensable tools, others raise ethical, legal, and moral uncertainties and concerns. Medicine and diagnostic radiology are no exception to these new developments — and these new uncertainties. Algorithms, both academic and commercial, have been proposed to interpret images, correct and reconstruct images, control quality, reduce radiation doses, and even invent information where it is not certain that any exists. This presentation will evaluate several of these new developments in the field of artificial intelligence, which promise a completely new era in radiology, but many of which will ultimately remain mere promises, and we will continue to rely on human intelligence.

Minibiografia do palestrante: 

Prof. Sechopoulos is the chair of the AXTI lab within the Department of Medical Imaging of the Radboud University Medical Center, part-time Professor at the M3i Group at the University of Twente, and Scientific Advisor of the Dutch Expert Center for Screening (LRCB). He obtained his Ph.D. from the Georgia Institute of Technology, in Atlanta, USA, performing research in the area of digital breast tomosynthesis at Emory University. Since then, his main area of research is the development of advanced x-ray-based imaging techniques, especially for breast cancer detection, diagnosis, and therapy response monitoring, and on body CT, especially for the development and optimization of functional imaging.
 
Prof. Sechopoulos has performed extensive work in radiation dosimetry, x-ray scatter modeling and correction, image acquisition optimization and image reconstruction, processing, and analysis algorithm development for various x-ray imaging modalities. He also performs patient trials to assess the clinical performance of these and other novel imaging technologies. Dr. Sechopoulos is a member or chair of 22 different tasks groups and committees of the American Association of Physicists in Medicine (AAPM), the European Federation for Organization of Medical Physics (EFOMP), the Radiological Society of North America (RSNA), and the European Society of Breast Imaging (EUSOBI). He is Deputy Editor of the international journal Medical Physics and a member of the editorial board of Radiology.
 
Acessos:
  • Auditório Abrahão de Moraes
  • Transmissão pública: acompanhe pelo YouTube do IFUSP.

Desenvolvido por IFUSP