Australian Bioscience News & Views

Biosciences related musings from an Aussie jill of all trades.

Sydney

  • Stone Owl figurine from Tarsus
    Pictures taken while wandering around.

Snakey

  • Shedding

Orchids

  • Orchid and vine grow together

Sandon Point holiday

  • Sunset view of the beach

Community

  • Artists
  • Friends

Interests

  • Biology, biomedical, scientific
  • Books
  • Cellular Automata
  • Food
  • Funnies
  • Gardening
  • Info
  • Media
  • Music
  • Reptilia

About

Categories

  • Books
  • Cloning
  • Current Affairs
  • Ethics
  • evolutionary biology
  • Film
  • Games
  • Genetics
  • Herpetology
  • International news
  • Lockhart Review 2005
  • Medicine
  • Native fauna
  • Native Plants
  • Religion
  • Science
  • Scientific method
  • Sydney birdlife
  • Television
  • Travel
  • Web/Tech

Travel ain't what it was

It was sobering to read Savage: The Life and Times of Jemmy Button by Nick Hazelwood, and not just because of the obvious tragedies of contact between European travellers and South American native peoples. As someone planning travels to the other side of the globe, I am reminded how relatively safe and risk free travel can be now, in comparison to the perilous, slow, and uncomfortable journeys of the mid-1800s. Then, it wouldn't have been unreasonable to consider death a distinct possibility in the course of inter-continental travel. It is quite a different psychological situation to be leaving on a "jaunt" to another continent, fully expecting to return safe and sound on the appointed day, likely within a few minutes of the expected time.

Reading the excerpts from Charles Darwin's diaries and letters was also a great reminder about how observation, and then reflecting on the things experienced, is the key to good science, philosophy, and historical writing. In a world of technology, statistical testing, and reasonably established experimental methods, it's easy to forget that all of this is only an aid to observation & thought, not a replacement.

03 June 2007 in Travel | Permalink | Comments (0) | TrackBack (0)

The colour blue

The smurfs are invading science.

OK, that's not true, but the colour blue has come to my attention a handful of times in the last few weeks, mostly in connection with genetics. Not that any of the things I learned about will come as a surprise to those who are well versed in the more obscure genetic variations humans can have, but they were a surprise to me.

For those rare unlucky souls who suffer Crigler-Najjar syndrome, being subjected to strong blue lights for half a day, every day, seems to cancel out the yellowing of skin & eyes, and more importantly the clogging of brain and other tissues with excess bilirubin (a metabolite of haemoglobin I think). Crigler-Najjar's a recessive trait, and is most often seen amongst some of the Amish & Mennonite families in Pennsylvania (USA), why it came up in the news today I don't know* ...

But it reminded me of a conversation with a friend who is a fan of smurfs, and occasionally paints himself blue for special events. We had been discussing the vicissitudes of body paint and clothing, and he mentioned the "blue bloods" of Apalachia (USA), anticipating that my jackdaw's mind would already have spotted and stored this colourful fact. It took us a bit of conversation around the topic before we worked out the condition is methaemoglobinaemia, a variation in haemoglobin molecules. In this condition, the haemoglobin is less efficient at carrying blood, hence the blue appearance I suppose.

Interesting that both of these things have something to do with haem ... more on that tomorrow maybe.  

* Note the human impact article in USA Today of 19th May to see where the Herald article originated.

21 May 2007 in Genetics | Permalink | Comments (0) | TrackBack (0)

More on Bufo beater

The same water loving snake that can eat cane toads and live to eat more, is also good at finding its way home. Female keelbacks (Tropidonophis mairii) return to the place where they hatched from an egg, to lay their own eggs when the time comes.

If you're interested in reptiles of the Sydney region, check out these fantastic images, and watch this space.

22 February 2007 in Native fauna | Permalink | Comments (0) | TrackBack (0)

Church and State

I'm usually exceptionally positive about Sydney University, being a place where opportunity abounds, for those lucky enough to gain a place as a student or employee. It as a community that does huge amounts of charitable and voluntary work on the side, and through its professional endeavours adds much to our country's abilities in ethics, finance, science of life and matter, medicine, history, the social and anthroplogical sciences, psychology, and many worthy fields. Today though, I am saddened to report that my alma mater has fallen onto the wrong side of the divide on separation of Church and State.

In order to secure an empty piece of land curently owned by St John's College, for the purposes of creating a wonderful new facility for medical research, the leaders of the university have agreed to accept the land with the condition that no research about euthanasia, stem cells, or the use of foetal tissue be conducted in that facility. Of course, such research will still be conducted elsewhere within the university, for the benefit of all, Catholic or other, but the acceptance of such a condition is a problem none the less. Our tax dollars, and the profits of private companies are devoted to universities and their much needed basic research. This research is too expensive to do elsewhere at present, as the masses of keen scientists, administrators, technicians, and ethicists are hard to gather in other place, without huge economic impost. Yet, it is possible for a single religion to rule on what is an acceptable field of enquiry, thus side stepping the many questions our community has about the ethics of research.

I am even more demoralised by the news, because our federal government will not defend this co-mingling of Church beliefs and State decisions on our research spending. Our current leaders do not believe in this essential separation of Church and State, not seeing the value it provides a civil society. Though I suspect I'm preaching only to the converted, I will say it now, this separation is vital to our survival as a society respectful of individual difference. Among our number are of course many Catholics, Anglicans, and other Christians, but there are also great numbers of Buddhists, Secular Humanists, Hindus, Athiests, Jews, Muslims, Sikhs, Agnositcs, Taoists, Zoroastrians, Wiccans, and other beliefs too numerous to name. Our diversity makes us strong, with the ability to see the world in many different ways, to approach the same dilemma in a thousand different ways, and accept our fellow beings as whole, and worthy members of a community ready to address the world's problems. Any reduction of this essential diversity, by allowing any one group to determine how our research money is spent, is a reduction of our excellent ability to live as a respectful community full of diversity and strength.

Shame on Sydney University for giving in, and shame on our government for encouraging it!

12 February 2007 in Cloning, Current Affairs, Medicine, Religion, Science | Permalink | Comments (1) | TrackBack (0)

Life is parasitic

Genes and memes are selfish replicators, and the very convoluted nature of it all is highlighted nicely by the example of how the "green things" were assimilated. I don't mean "little green men", I mean how plants and algae got their chloroplasts. Chloroplasts are the tiny, membraneous balls within the cells of photosynthesising organisms that do the actual work of converting sunlight to chemical energy.

On several different occasions, larger cells "trapped and enslaved" these tiny sunlight-powered workhorses and put them to use feeding larger and larger structures.

This view of life is an interesting, almost negative take on The Goldilocks Enigma proposed by Paul Davies. On the other hand, it might be more apt to consider the example of one type of cell engulfing another as a kind of ultimate example of natural selection resulting in novel solutions to the basic problems of life, such as the need for energy.

07 January 2007 in evolutionary biology | Permalink | Comments (0) | TrackBack (0)

»

Recent Posts

  • Travel ain't what it was
  • The colour blue
  • More on Bufo beater
  • Church and State
  • Life is parasitic
  • Sugars from different angles
  • European giant
  • Not the death of science
  • Lizard hunting
  • Power to quality controllers

June 2007

Sun Mon Tue Wed Thu Fri Sat
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30

Archives

  • June 2007
  • May 2007
  • February 2007
  • January 2007
  • December 2006
  • November 2006
  • October 2006
  • August 2006
  • July 2006
  • June 2006
Subscribe to this blog's feed
Add me to your TypePad People list
Blog powered by TypePad

My Wish List

Visit this Wish List at Amazon.com