Nonparametric identification of accelerated failure time competing risks models

We provide new conditions for identification of accelerated failure time competing risks models. These include Roy models and some auction models. In our set up, unknown regression functions and the joint survivor function of latent disturbance terms are all nonparametric. We show that this model is identified given covariates that are independent of latent errors, provided that a certain rank condition is satisfied. We present a simple example in which our rank condition for identification is verified. Our identification strategy does not depend on identification at infinity or near zero, and it does not require exclusion assumptions. Given our identification, we show estimation can be accomplished using sieves.

Cooperativity in a trading model with memory and production

We consider in a market model the cooperative emergence of value due to a positive feedback between perception of needs and demand. Here we consider also a negative feedback from production of the traded products, and find that this cooperativity is robust, provided that the production rate is slow. Cooperativity is found to be critically linked to the ability to minimize the overall need, and thus disappears when the agents are poor, when the production rate is large or when there is little trade. We further observe that a cooperative economy may self-organize to compensate for an eventual slow production rate of certain products, so that these products are found in sizeable stocks. This differs qualitatively from an economy where cooperativity did not develop, in which case no product has a stock larger than what its bare production rate justifies. We also find that these results are robust in relation to the spatial restriction of the agents.Comment: 12 pages, 7 figure

Sharing the Body in the Body

I have little to share with you on the Eucharist and the Christian life other than my own odyssey in this respect, so let me be frankly biographical. What I have learned about the holy meal and the holy life cannot be separated from the agonies and joys of those who have shared the way of Jesus with me, so I am indebted especially to the people of my parish, including, and above all, my colleague John Puelle

The Anthropology of Communism

This essay is an investigation of the communist view of man and an attempt to indicate a few implications of the same for the Christian Church. The topic itself is a broad one. The available material, both primary and secondary, comprises too long a list for the research this writer was able to do. The bibliography will indicate, however, that at least some of the basic primary writings were consulted as well as a number of the better commentaries on communism

Social and Political Thinking in the Lutheran Church--Missouri Synod from 1920-1955

The primary aim of this thesis is to give a description of the social and political thinking within The Lutheran Church--Missouri Synod during the years 1920 to 1955. Obviously the purpose is more than that, however, since few people are interested in describing simply for description\u27s sake. The implication is that such a description has to do with a crucial area in the theology and life of the Church. This in turn implies that even a description can serve the useful purpose of giving a better understanding of what has been thought and why it has been thought,. and can:, therefore. help to indicate a direction for thinking and acting in the future

The Gospel and the Urban Crisis

The urban crisis compels us to reexamine the gospel. It gives the lie to our arrogant supposition that we proclaim the gospel in all its truth and purity. It shows that what we have passed along as pure gospel is really the gospel shaped by cultural accretions. Furthermore, the urban crisis prompts us to confess that the gospel is not believed and understood faithfully when it is viewed as a message detached from its worldly surroundings, because the gospel encompasses a way of life that comprehends in one seamless robe the words that express the good news as well as actions that give substance to the words

Electrode, electrocatalyst and electrolyte development for hybrid redox flow batteries

The development of new electrochemical devices and their subsequent widespread adoption alongside our energy grids is critical to support the incoming wave of renewable energy generation and the transition to net zero. Hybrid redox flow batteries are a promising alternative energy storage technology that could ultimately provide inexpensive and sustainable large scale energy storage solutions compared to their lithium-based counterparts. Technological improvements rely on improved understanding of the processes occurring in these devices. This thesis focuses on three aspects essential to all electrochemical devices – the electrode, electrocatalyst and electrolyte. First, electrochemical and tomographic imaging analyses are combined to understand the effect of electrode microstructure properties on the performance of a non-aqueous redox flow battery. With the help of a one dimensional model, mass-transfer coefficients are gathered from the experimentally determined polarisation curves and affirm the results positively linking electrode permeability to overall cell performance. Second, the synthesis and optimisation of a multifunctional, nitrogen-doped carbon based electrocatalyst is outlined. The active site of the electrocatalyst is examined using a suite of physical characterisation techniques and is shown to have intriguing versatility across the pH spectrum towards catalysing both oxygen and hydrogen fundamental reactions. This catalyst is then tested, with a variety of success, in two fuel cell devices and, alongside the electrodes tested in the first section, in a hydrogen-manganese hybrid redox flow battery. Finally, the aqueous liquid electrolyte involved in this hybrid redox flow battery is scrutinised. Two in-operando analytical techniques are developed, providing improved handles on real-time solution-phase manganese species concentration in the electrolyte. The production of solid manganese oxides significantly alters solution equilibria making the deconvolution of electrochemical and adjacent, simultaneous chemical processes complex.Open Acces

A GUARDA COMPARTILHADA APÓS A LEI N. 13.058/2014: ASPECTOS TEÓRICOS, PRÁTICOS E ANÁLISE DA JURISPRUDÊNCIA CATARINENSE

TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Jurídicas. Direito.O presente trabalho tem por objetivo estudar a aplicação da guarda compartilhada como regra, a partir da vigência da Lei n. 13.058/2014, como garantia da igualdade parental. Utiliza-se o método de procedimento monográfico, o método de abordagem indutivo e a técnica de pesquisa indireta, com pesquisa bibliográfica, documental e jurisprudencial. Apresenta-se, inicialmente, os tipos de guarda existentes no ordenamento jurídico brasileiro. Após, trata-se especificamente da Lei n. 13.058/14, delimitando quais os princípios constitucionais que ela efetivamente assegura e as principais reflexões quanto à alienação parental e aos alimentos. Em seguida, analisa-se o compartilhamento de guarda como sendo necessariamente instituto de aplicação casuística. Por fim, fez-se pesquisa jurisprudencial no Tribunal de Justiça catarinense com análise de como a referida lei foi recepcionada, verificando se foram observados os parâmetros da doutrina especializada.This monograph aims to study the application of the joint custody/shared parenting as rule, after the Law n. 13.058/2014 came into force guaranteeing parental equality. It uses the method of monographic procedure, the inductive approach method and the indirect research technique, with bibliography, documentary and jurisprudential study. Initially, it presents the custody types existint in brazilian law. Afterwards, the study relies specificly on Law n. 13.058/2014, specifying which constitucionals principles are assured by its arrival and the most important reflexions that it brings: parental alienation and obligation of maintenance. Following, the joint custody/shared parenting is examined as being necessarily applied casuistically. At last, it was delved how Santa Catarina's Court was applying the new law, verifying if the lessons of the very best researchers were respected

Predictability in an unpredictable artificial cultural market

In social, economic and cultural situations in which the decisions of individuals are influenced directly by the decisions of others, there appears to be an inherently high level of ex ante unpredictability. In cultural markets such as films, songs and books, well-informed experts routinely make predictions which turn out to be incorrect. We examine the extent to which the existence of social influence may, somewhat paradoxically, increase the extent to which winners can be identified at a very early stage in the process. Once the process of choice has begun, only a very small number of decisions may be necessary to give a reasonable prospect of being able to identify the eventual winner. We illustrate this by an analysis of the music download experiments of Salganik et.al. (2006). We derive a rule for early identification of the eventual winner. Although not perfect, it gives considerable practical success. We validate the rule by applying it to similar data not used in the process of constructing the rule