We present an experimental test of the validity of the Pauli Exclusion Principle for electrons based on the concept put forward a few years ago by Ramberg and Snow. In this experiment we perform a very accurate search of X-rays from the Pauli-forbidden atomic transitions of electrons in the already filled 1S shells of copper atoms. Although the experiment has a simple structure, it poses deep conceptual and interpretational problems. Here we describe the experimental method and recent experimental results, which (...) we interpret as an upper limit for the probability to violate the Pauli Exclusion Principle. We present also future plans to upgrade the experimental apparatus using Silicon Drift Detectors. (shrink)

In this paper we describe an experimental test of the validity of the Pauli Exclusion Principle (for electrons) which is based on a straightforward idea put forward a few years ago by Ramberg and Snow (Phys. Lett. B 238:438, 1990). We perform a very accurate search of X-rays from the Pauli-forbidden atomic transitions of electrons in the already filled 1S shells of copper atoms. Although the experiment has a very simple structure, it poses deep conceptual and interpretational problems. Here we (...) describe the experimental method and recent experimental results, which we interpret in the framework of quon theory. We also present future plans to upgrade the experimental apparatus using Silicon Drift Detectors. (shrink)

In recent years there has been increasing concern about the various forms of abuse faced by birthing patients during labour and childbirth. Common examples include being scolded, slapped, pinched, stabbed with scissors or struck with a ruler or other instruments. This mistreatment is collectively termed obstetric violence.A growing body of literature examines legal responses to obstetric violence including the potential use of the criminal law. The present article explores whether, in South Africa, common-law crimes or statutory offences could be used (...) to prosecute healthcare workers for the range of harms falling within the broad definition of obstetric violence. It does not question whether criminal law is an appropriate response in this instance.The article concludes that existing crimes are sufficient to address obstetric violence. It is clear that the common-law crimes of crimen iniuria, assault, assault with intention to commit grievous bodily harm and the statutory offence of involuntary sterilisation, could be used to address both physical and emotional forms of obstetric violence. It is submitted that they cater adequately for the broad range of conduct that potentially falls into the definition of obstetric violence. Further research is required in this area and it may mean that prosecutorial guidelines are needed. (shrink)

The acceleration of the market globalisation process over the last three decades has internationalised clinical research and influenced both the way in which it is funded and the development and application of research practices. In addition, in recent years international multicentre randomised clinical trials have become the model par excellence for research on new medicines. The neoliberal model of globalisation has induced a decline in state power, both with regard to establishing national research for health priorities and to influencing the (...) development of adequate ethical guidelines to protect human beings that participate in multinational research. In this respect, poor and low-income countries, which lack sustainable control and review systems to deal with the ethical and methodological challenges of complex studies conducted by researchers from affluent countries and funded by large multinational pharmaceutical companies, are particularly vulnerable. The aim of the present paper is to explore critically some of the actual and possible ethical pitfalls of globalisation of clinical research and propose mechanisms for turning transnational clinical research into a more cooperative and fairer enterprise. (shrink)