Conferência 5: The Simplified, Effective, Labor Monitoring to Action Tool for Better Outcomes in Labour Difficulty

Gleici da Silva Castro Perdoná, FMRP-USP

Abstract

In this talk I present some proposed statistical methods to solve problems in the area of reproductive health. The project namely Simplified, Effective, Labor Monitoring to Action (SELMA) is part of a major project: Better Outcomes in Labour Difficulty (BOLD). Its objective is the development of the SELMA tool. SELMA is an algorithm to guide health professionals, offering a solution to avert intrapartum-related fetal death of babies (stillbirth) and neonatal death or severe morbidity. This tool consider different outcomes and predictors which determine the risk of severe perinatal outcomes related to labour, providing customized guidance for the management of labour, including the use of amniotomy, labour augmentation and C-section. It provides a benchmark for labour management in health facilities. Our proposed structure considers a different point of view to answer questions on risk that consider survival analysis to made the SELMA.

Conferência 3: Relaxed Poisson cure rate models

Josemar Rodrigues, ICMC-USP

Abstract

The purpose of this paper is to make the standard promotion cure rate model (Yakovlev & Tsodikov, 1996) more flexible by assuming that the number of lesions or altered cells after some a treatment follows a fractional Poisson distribution (Laskin, 2003). It is proved that the well-known Mittag-Leffler relaxation function (Berberan-Santos, 2005) is a simple way to obtain a new cure rate model which is a compromise between the promotion and geometric cure rate models allowing for super-dispersion. So, the relaxed cure rate model developed here can be considered as a natural and less restrictive extension of the popular Poisson cure rate model at the cost of an additional parameter but a competitor to negative-binomial cure rate models (Rodrigues et al., 2009b). Some mathematical properties of a proper relaxed Poisson density, a simulation study and an illustration of the proposed cure rate model from the Bayesian point of view are presented. Key words: Bayesian inference, Poisson cure rate model, Fractional Poisson distribution, Mittag-Leffler relaxation function, Relaxed Poisson cure rate model, Geometric cure rate model.

Conferência 2: Degradation model

N. Balakrishnan, McMaster University, Canadá 

In this talk, I will give a detailed description about degradation experiment, the data observed from such an experiment, the models that are used for their analysis, and then finally give some numerical results to illustrate the applicability of the developed results.

Conferência 1: Statistical Innovation in Brazil: Technology Transfer and Products

Francisco Louzada, ICMC-USP

Abstract

The statistical science has reached a remarkable stage of academic growth, which has been driven by its huge applicability in virtually all areas of knowledge. Despite this success, there exists at least one area in which the statistics has not kept up the progress experienced by other sciences, particularly in developing countries. It is the development of statistics as activity with interdisciplinary potential to promote technological development, and effectively contribute to the productive sector to increase its value through the development of specific statistical products. In the above context, innovation and technology transfer are crucial for efficient communication between statistical researchers and industry, promoting interaction with professionals in the public and productive sectors, as well as with the population. In this conference I present the main statistical products that have been developed for the Group of Risk Assessment at the Centre for Mathematic Sciences Applied to Industry (CEPID-CeMEAI) to approximate the academy, the productive sector and the population in general in Brazil.

Minicurso: Topics of Reliabilities

N. Balakrishnan, McMaster University, Canadá

Day 1- 10:00-12:00 - Title: One-shot Device Testing
Resume: In this topic, I will explain the testing for one-shot devices which produces only either right or left censored data. I will then consider different lifetime distributions and explain the likelihood inference for data obtained from such one-shot device testing.

Day 2- 10:00-12:00 - Title: Left-truncated and right-censored data and associated inference
Resume: In this topic, I will explain a typical industrial application in which the data observed is always left-truncated and right-censored data. I will then develop in detail the EM algorithm approach for the likelihood inference of model parameters for different lifetime distributions, and then use these results to discuss model selection and model discrimination within the family of generalized gamma distributions.

Title: Mathematical Modeling and Operational Research: Some Case Studies and Lessons of Mountaineering

Júlio Michael Stern – Department of Applied Mathematics – University of São Paulo

Abstract

The title of this conference is an upbeat version of Lições de Abismo, a novel by Gustavo Corção, where the author wishes to have had some lessons preparing him for the difficult challenges he has to overcome.

Consulting for industry and commercial or financial enterprises was for me a real challenge, for my first encounter with applied mathematics was the book of Prof. Chaim Hoenig - Application of Topology to Analysis.

I wish I had some Lessons in Mountaineering, teaching me some basic tricks and other not so trivial survival skills for consulting in applied mathematics. Unfortunately, I never had such preparatory lessons.

Nevertheless, I ended up doing quite a few interesting projects on "real" applied mathematics, including several PITE and PIPE projects at FAPESP. Some of my recollections about these projects can be found in section 4 of
http://www.ime.usp.br/~jstern/vitae/jmst2.pdf and accompanying slides http://www.ime.usp.br/~jstern/vitae/jmsts2.pdf

I will try to extract from these recollections some lessons in mountaineering.

Title of Talk: Calculating the SAR to Power up an Implantable Neural Interface for Wireless Communications with Human Motor Cortex

Mario Alexandre Gazziro - Department of Computer Science - University of São Paulo

Abstract: This presentation will introduce the major project named "Implantable Neural Interface" developed by ICMC, IFSC and EESC from USP, UFABC, USF (University of South Florida-USA) and by Brazil Research Lab (BRL) from IBM, with the objective to provide a wireless brain-computer interface, allowing mankind a security access to the human motor cortex, with focus on SAR (Specific Absorption Rate) modeling. A SAR limit of 2W/kg averaged over any contiguous 10g head tissue was recommended by the Council of European Union for the general public. The results will show how many electrodes can be powered within an security level for the brain.

Title: A Perspective of University-Industry Collaboration – A Pedagogical Approach

SPEAKER: Weldon A. Lodwick

AFFILIATION: University of Colorado Denver, Department of Statistical and Mathematical Sciences – Applied Mathematics Graduate Program

ABSTRACT: This presentation will focus on how to bring actual applied mathematical problems from industries and institutions into the classroom to be researched with a solution, hopefully, returned. This pedagogical instrument of training graduate and undergraduate students in applied mathematics, not only prepares students for jobs in applied mathematics, it is an exercise in applied mathematical research beneficial to the sponsoring industry/institution and also serving for masters and PhD topics as well as research articles. This is a regularly scheduled three hours per week, fifteen week class, called the mathematics clinic given each semester (sometimes we have 2 clinics in a semester), which is required by all undergraduate mathematics students and PhD students. The mathematics clinic is a distinguishing feature of our department. I will present the 30 year experience of the mathematics department at the University of Colorado Denver of which I have been a part from the first one in 1982, 15 years as the director of the program, with examples of various clinics. The outline of the presentation is as follows:

1. Introduction – what is a mathematics clinic, how do we obtain problems?

2. The structure of the clinic – how a mathematics clinic is run?

3. Our experience

a. Our first clinic (1982) – Three Mile Island Nuclear Power Plant Disaster, parallel computer implementation of simulations, Delcor Computers and US Department of Energy

b. Various clinics

i. Plant Variety Protection - USDA

ii. Lockheed-Martin Vehicle Launch Unit – optimal Uranus probe design

iii. Lockheed-Martin – the use of neural networks to control rocket launches

iv. A Sewer System Geographic Information System – South Suburban Sanitation District No. 1, Centennial, Littleton, and Englewood, Colorado

v. Trash collection and snow mashing routing problem – City of Denver

vi. Radiation Therapy of Cancer Tumors – Computerized Medical Systems (St. Louis, Missouri) and University Hospital Radiation Oncology unit

vii. Intelligent Mathematical Programming Systems – Shell Oil, Amoco (now BP)

viii. Medical Image Processing – National Jewish Lung Hospital, Denver

ix. Democratic National Convention 2008, security monitoring – Democratic Party

x. Others

4. What does an industry or institution gain?

5. What does the university, department, student gain?

6. My point of view of the possibilities of university/industrial collaboration in Brasil after a year at UNESP-SJRP

a. Non-pedagogical Approach – A talk with Professor Marcus Rocha, Univ. Federal do Para

b. Pedagogical Approach – Experience with  UNESP-SJRP and Hopstital de Câncer de Barretos, “Escala de médicos” (unidade de radioterapia)

7. Concluding remarks

Title: Developing optimization software: overview, challenges and perspectives

Ernesto Birgin – Department of Computer Sciences – University of São Paulo

Abstract: Our experiences developing optimization software will be overviewed in this talk. The objective of the talk is to highlight the challenges involved in the development and long-term maintenance of open source software for nonlinear programming and discrete optimization. The dichotomy between focusing on attaining a large number of users having at hand academic problems or a few users with real applications will be tackled. Perspectives will be analyzed.

Title: Neutralization of Acid Mine Drainage

Presenter: Mario Primicerio – University of Florence

Abstract: We present a mathematical model for the flow of an acid solution through a reacting porous medium. The solid matrix is supposed to be formed by families of spheres with different radii and the fluid is supposed to saturate the pores. The system is described by the evolution of the overall ion concentration and the radii of the spheres. The structure of the mathematical problem is multi-scale in time and for each time-scale different simplified problems can be obtained. We give some analytical results and display some numerical simulations to show the behavior of the solutions. The main motivation of this research is the design and use of remediating filters in which solid particles of CaCO3 are used to neutralize a given flow of an acid mine drainage.