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Will Down syndrome disappear?

Will Down syndrome disappear?

There are concerns about the impact of the improving accuracy and availability of low risk cheap prenatal tests such as for Down syndrome (DS). Introduction of a noninvasive maternal serum test is expected that might provide a definitive diagnosis of DS in the first trimester at no risk to the fetus. The authors report that the tests should be virtually universally available and allow privacy of decision making. The authors ask whether the new tests will decrease the birth incidence of DS even further. Indeed, might there be no more DS children born? If so, is that a problem?

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“Trust Me, I’m an Ethicist”

A paper forthcoming in the philosophy journal Mind inquires into perceptions about the ethics of ethicists. The paper reports on a survey that asked philosophers their opinions about the moral behaviour of ethicists compared with the behaviour of philosophers who specialize in other fields. Majorities of both the ethicist and non-ethicist respondents did not think that ethicists behaved any better than other philosophers. While ethicists were somewhat optimistic about other ethicists, with a larger number opining that they behaved better than other philosophers than that they behaved worse, non-ethicists were nearly evenly split between these views. We might reasonably expect that ethicists in general would be, on average, more practiced at moral reflection than other philosophers, and arguably more skilled at it – if not to begin with, then at least as a result of the practice. So the results of the survey suggest that philosophers on the whole do not think that more moral reflection improves moral behaviour. This invites the question: What, then, are ethicists good for?Read More »“Trust Me, I’m an Ethicist”

The ventilator lottery: rolling the dice in the face of difficult choices

As the winter approaches there has been a surge in the number of cases of swine flu, as well as a number of recent deaths in the UK. Although there is hope that the new vaccine will reduce the impact of the pandemic a number of countries including Canada the UK and the  United States have had to face the possibility that health services will not be able to accommodate the predicted surge in demand. Officials have been contemplating guidelines for deciding who should be prioritised for receiving life saving mechanical ventilation. The hope is that such guidelines will enable doctors to save the greatest number of lives in a pandemic.

But one concern about these guidelines is that they are unfair. Should scarce medical resources such as ventilators be allocated using a lottery instead?

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If God hates the Higgs boson, we can build paradise on Earth

The Large Hadron Collider is an amazing scientific tool. And although it is still not up and running it produces a steady stream of exciting news – because when the experimentalists are busy with repairs the theorists are at play. New York Times brings us the story about a theory that suggests that the accelerator is being sabotaged from the future.

The idea, presented by Holger Nielsen and Masao Ninomiya in two papers (paper 1, paper 2) is that (based on some very speculative physics) there could be a form of future-to-past signal that conspires to keep futures with much Higgs production unlikely. Things will seemingly randomly arrange themselves so that the LHC doesn't get turned on, and there are no Higgs particles. The authors even suggest that one can use this influence to check the theory: make a binding agreement that the LHC will not be turned on if eleven thrown dice all come up ones (a one in 3 billion chance). If the dice do come up all ones when the CERN director throws them, that is actually evidence for the theory. This might be evidence that theoretical physics still has the edge on philosophy in strangeness.

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Can We Rely on Science to Catch Up?

In an article published in the Australian on 12 October 2009 (http://www.theaustralian.news.com.au/story/0,25197,26195539-30417,00.html ), Des Moore the director of the Institute for Private Enterprise (http://www.ipe.net.au/ipeframeset.htm ), makes an interesting contribution to debate about the appropriate policy response to the threat of climate change. He suggests that we should rely on science to produce a viable solution to energy production that does not cause CO2 emissions. This might happen either because science leads to improvement in the efficiency of some currently known means of energy production that is not currently economically viable, or because scientists develop an entirely new means of producing energy. Because we can rely on this happening it makes no sense to institute costly emissions reduction policies now, or so Moore argues.


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The ethics of mind-reading

Recent developments in neuroimaging have created concerns about the ethics of 'mind-reading'. A technology called functional magnetic resonance imaging (fMRI) has led to significant advances in the ability to determine what someone is thinking by monitoring their brain activity. Early research focused on determining very simple features of a person’s mental state, such as whether or not they were currently looking at a picture of a face. However, new research by John-Dylan Haynes of the Max Planck Institute has gone beyond this, allowing scientists to determine which action the subjects in their trial were intending to perform before they performed it (see a summary, or the paper itself). The task in question was to decide whether to add or subtract the two numbers which would later be shown. After being trained on a number of examples, the system could predict which of the two operations the subject would later perform. Furthermore, a study at Carnegie Mellon University showed that it was possible to determine which word from a given list a subject was thinking of, even if it had not scanned that person’s brain before.

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Protecting our borders with snake oil

The UK Borders Agency has recently come under fire for looking into the use of DNA tests and isotope analysis to determine the true nationality of asylum seekers. It is not just refugee support groups who are outraged, scientists are equally upset (perhaps more). The problems are many: there is no reason to think ancestry and ethnicity fits with nationality, the relevant genetics and isotope data is noisy, the research may not have been vetted for reliability, and it is not inconceivable that noise in the tests could be used as excuses for dismissing people who actually have valid asylum reasons (like linguistic tests occasionally do).

The project is unfortunately just the latest example that governments may be too eager to buy snake oil: on this blog I have previously criticized the use of voice-based lie detectors, the legal use of fMRI to determine guilt, ethics for military robots, pre-emptive DNA testing and electronic voting machines. The problem here is not that these technologies can't work, but that they are deployed far earlier than any careful demonstration that they actually work well enough to fulfil their purpose. It is a "science fact" problem: it is hard these days to tell what has proven to work, what is being developed and what remains a theoretical possibility. Especially when it is being pushed by enthusiastic researchers and salesmen.

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Cheating Darwin? The Ethics of Sexual Selection

Cheating Darwin? The Ethics of Sexual Selection

In a recent article titled “Cheating Darwin: The Genetic and Ethical Implications of Vanity and Cosmetic Plastic Surgery” in the July issue of the Journal of Evolution and Technology, Kristi Scott considers the potential evolutionary harms of cosmetic plastic surgery and other beauty-related enhancements. Her ‘worry’ is that individuals who have undergone cosmetic surgery and other significant ontogenetic aesthetic enhancements will not disclose this fact to their potential mates, who will then make procreation decisions based on misleading information.

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Non-resisted suicide and depression

In late 2007 a young woman with a history of depression and several previous suicide attempts presented to an emergency department following an overdose. She gave doctors a copy of her living will, written 3 days previously, in which she made it clear that she wanted no measures to be taken to save her life. Earlier this week Roger Crisp and Julian Savulescu argued separately in this blog that the wishes of competent patients to end their lives should be respected. But if we believe that suicide can be rationally sought, and should sometimes not be resisted, should this include those who have been diagnosed with depression?

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Suicide woman allowed to die

By Julian Savulescu

As read about in the Telegraph, doctors allowed 26-year-old Kerrie Wooltorton to die after she swallowed poison and gave them a letter instructing them not to intervene.

 

Reference:  Savulescu J. Should All Patients Who Attempt Suicide Be Treated? Modern Medicine 1995; Feb:113-120.  Reprinted in: Monash Bioethics Review 1995; 14: 33-40. With reply to critics: Savulescu, J. "Response to Bailey." Monash Bioethics Review 1996; 15: 44-5.

Should All Patients Who Attempt Suicide Be Treated?

Summary

Some patients who attempt suicide refuse treatment.  These patients are invariably treated if brought to hospital.  There are several reasons for this.  These reasons justify the treatment of many of these patients, but not all.  Some patients who attempt suicide ought to be allowed to die.  My argument for this claim turns on judging some patients who attempt suicide to be sufficiently competent and rational to be allowed to die. 

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