SciBlogs

Archive June 2010

How Much Science Communication Is Enough? Guest Work Jun 30

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By Dr Michael Edmonds

Over the past couple of years I have spent time participating in, and thinking about science communication. I have observed an ongoing call for more scientists to engage with the public and to communicate science with greater clarity, and I have seen scientists around the world rise to this challenge.

Yet, there still appears to be a demand from the public for more science communication. Hilary Miller recently posted a link discussing an EU survey looking at public perceptions of science which included the following statistic – 57% of those surveyed think that scientists should be doing more to communicate their work to the general public.

This leads me to ask the question – How much science communication is enough? We already have scientists trying to engage the public through newspaper and magazine articles, blogs, books, and public talks. There are also many excellent science programmes available on TV and DVD. So how much more do we need, or does the problem lie elsewhere?

While I think more science communication would be beneficial, I suspect that part of the problem does lie elsewhere. The public may, when surveyed, ask for more science communication but how many of them follow this up when opportunities are made available? How many are willing to take the time to attend a public talk, or buy a well written generalist science book? How many regularly read science magazines or blogs?

I am reminded of a conversation I had with a friend who teaches first year university science. Concerned that students might need more opportunities for learning, she asked a large (several hundred) first year cohort how many would be interested in extra tutorials. A large number of the students agreed that tutorials would be helpful. Yet when the tutorials were established, less than ten students attended regularly.

Scientists can do their best to make science entertaining and relevant to the public, but for the public to understand science, it does require some effort on their part as well. Communication is a two way process.

Dr Michael Edmonds is an educator, researcher and manager at Christchurch Polytechnic Institute of Technology. He has strong interests in the communication and promotion of science.

Taking the Hot Air out of the Climate Change Debate Guest Work Jun 22

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By Dr Michael Edmonds

Climate change is an issue which needs to be debated scientifically, through careful and rational analysis of the facts. However, as the climate change debate intensifies a disturbing trend is emerging – more and more of the debate involves arguments reminiscent of a “down and dirty” political debate. Personal attacks, misrepresentation or selective use of facts, and irrelevant arguments now permeate the debate and cloud our understanding of climate change.

There is not enough space here to describe all of the inappropriate tactics used in the climate change debate. However, below are five common misleading arguments. My hope is that by recognising and challenging misleading and irrelevant arguments we can remove them from the public arena and focus on the real issues.

  • “Carbon dioxide isn’t toxic. Plants used it to grow.”
    This argument is pure misdirection. Increased carbon dioxide levels are worrying because they enhance the greenhouse effect. It is disturbing to see many self proclaimed “experts” resort to this misleading argument.

  • “How can carbon dioxide which is present in parts per million (ppm) have a significant effect on the atmosphere?”
    Carbon dioxide levels in the atmosphere have increased by 20% in the past 60 years to 387 ppm, hardly a minor variation. While measurements in ppm might seem low, many gases have significant effects at low levels. Hydrogen cyanide, for example, is lethal at concentrations above 135 ppm.

  • “Scientists can’t prove their claims with absolute certainty.”
    Scientists seldom make claims with absolute certainty, particularly with regard to complex systems such as climate. Indeed, I would be wary of absolutist claims coming from either side of the debate. Scientists tend to discuss events in terms of probability, for example, the most recent IPCC report suggests that there is a greater than 90% probability that anthropogenic global warming (AGW) is occurring. This means that AGW is so likely that the odds against it occurring are similar to the chance of tossing a coin four times and getting tails every time.

  • “This summer hasn’t been very hot, global warming can’t be true.”
    Short term weather occurrences (intense storms, colder than average winters, hotter than unusual summers) do not prove or disprove climate change. Climate change patterns are measured over decades and centuries to determine underlining trends that are not obvious in the seemingly chaotic nature of daily weather.

  • “Many scientists do not believe anthropogenic climate change is occurring.”
    Worldwide, more than fifty scientific organisations have issued statements that global warming is occurring and is most likely to be anthropogenic. While six scientific organisations remain non-committal, there are none who refute that AGW is occurring. Closer to home, approximately 70% of New Zealand scientists and technologists agree that AGW is occurring, with 9% disagreeing, and 21% non-committal.

Some scientists who do not accept AGW are carrying out research in order to demonstrate their misgivings scientifically. This is to be applauded. Science does not fear the results of legitimate research. Unscrupulous opponents of AGW, however, have resorted to attacking scientists and science. Claims of a scientific conspiracy appear to have gained some public support even though these claims are based on disingenuous interpretations of hacked emails and exaggeration of errors in IPCC reports. Fear and suspicion may be powerful manipulators of public opinion, but they have no place in scientific debate.

If we are to make progress in understanding AGW both individually, and as a society, we must learn to see through the dirty tricks used in the climate change debate. We all have the capability to recognise and challenge misleading arguments. Removal of these arguments from the public arena can only serve to bring clarity to the climate change debate.

Dr Michael Edmonds is an educator, researcher and manager at Christchurch Polytechnic Institute of Technology. He has strong interests in the communication and promotion of science.

The Sandhill Cranes of Mississippi Guest Work Jun 17

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by George Jones

I learned a new word a few months ago – bayou.  Well I had heard it years ago in a Roy Orbison song, and I now know its meaning.

It is the slow moving part of a river left when a meandering river breaks through, diverting the main flow.  It can be large or small, swampy, marshy, with or without a clearly defined shoreline. It is a Native American Muskogean word used in the south east of USA, where there are lots of low-lying wetlands.

It was coupled with the word savanna, which is a sparsely treed grassy plain, in this area with acidic water-logged soils, and perhaps three or four pine trees per hectare.

In the 1970s the Interstate-10 highway was pushed though from California to Florida, through an extensive wetland region east of New Orleans, west of Mobile.  It cut in two the natural habitat of a very rare bird, the Mississippi Sandhill Crane, then with a population of less than thirty.  One man, Jake Valentine, activated the move to protect this bird, including a court case to stop the highway construction.  It has a population now of about 110, through the good work of the US Fish and Wildlife Service.

I visited the 77 square kilometre (about the size of Wellington Harbour) National Wildlife Refuge and saw several of the large birds, some grazing on pasture, and some detained near a small lake with a fence round it.  These latter were young birds, hatched and reared offsite, with brailed wings so they cannot fly.  The restraints are removed after several months of socialising with others of their species.  There was a blind (hide or maimai) close by for observation.
They are beautiful birds, well over a metre high, with long thin legs, big wings, a large grey body, long neck and red top-knot.  They mate for life, and number around 25 breeding pairs, with 18 known nests this season.  They stay around their habitat, not socialising or breeding with any of the migrating cranes that pass through the region.

There are many bird varieties in the refuge, including duck, scaup, shoveler, killdeer, sparrow, robin and warbler. There are vultures, hawks and kestrels, as well as mammalian predators. When I was there, there was a question about what a dog was eating in the long grass, in the same farm paddock as several sandhill cranes.

The grasslands are biologically very diverse, with plants that can survive on the poor, acid, wet soils. Some have nutrient augmentation by being carnivorous: butterworts, sundews, bladderworts and pitcher plants. Others are orchids, violets, peas, candyroots and colicroots, and larger saw palmetto, holly, blueberry and huckleberry. There are several varieties of trees: predominately longleaf pine, but some cypress, live oak, tupelo, maple, bay and the introduced slash pine. Some of the previously drained forested areas are being cut down and converted to better crane habitats with much less canopy, as only a few percent of their original habitat survives.

Fire is used to control the rank growth, that adds ash to the soil, opens up the pasture, yet does not harm the pines, because they have extra thick non-flammable bark.  Wire grass depends on fire – it does not seed until after a burn.

Currently they are keeping a watch on the Gulf of Mexico oil spill, and have no immediate fears for the birds.

One of the advantages of the Gulf is that it has a negligible tide, with limited daily seawater ingress into the wetlands.  The big worry is hurricanes, that generate storm surges that travel perhaps ten or twenty km inland.  This could instantly devastate thousands of square km of fragile coastal wetland environments.

George Jones is an adventurer, technologist and member of the Wellington branch of the Royal Society of New Zealand

Mississippi Sandhill Cranes Source: George Jones

Mississippi Sandhill Cranes Source: George Jones

Mississippi Sandhill cranes source: George Jones

Mississippi Sandhill cranes source: George Jones

Young cranes source: George Jones

Young cranes source: George Jones

Savannah and Bayou  source: George Jones

Savanna and Bayou source: George Jones

Sandhill Crane head  source: Wikipedia

Sandhill Crane head source: Wikipedia


What is the (e) in your eResearch? Guest Work Jun 16

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By Julian Carver

First eMail, then eCommerce, eBusiness & eProcurement, eGovernment, eDating, and now eResearch. Does simply putting an ‘e’ in front of an existing practice make it somehow sexier, and more now? I headed along to the Wellington eResearch Symposium last week to find out.

OK, that’s not true. I did go to the Wellington eResearch Symposium last week, but I already have deeply held views about eResearch and have been advocating the concept for six or seven years. I’m just pretending to be a journalist today, and that sounded like something a journalist would say.

The Wellington eResearch Symposium was held on Tuesday 8thJune, and was organised by Victoria University of Wellington (VUW) with support from Research and Education Advanced Network New Zealand Ltd (REANNZ).*

First lesson in eResearch – there are going to be lots of acronyms.

The event was an opportunity for people actually doing eResearch to share what they were up to, and how they were using technology to improve their science/humanities research.

Second lesson in eResearch – it’s not just scientists that are using it, there are incredible things happening in the humanities too.

In the second session of the day, Julie Watson, eResearch Advisor at MoRST asked “What the h(e)ll is (e)Research?”, and proposed that “(e) = ICT”. She suggested that using ICT in research “changes the scale and sensitivity of instruments, enables remote access to results, instruments, & data resources, makes simulation and modeling of virtual experiments possible, creates aggregations of data, and accelerates research interaction and expands the scale.” Any clearer now? It makes sense to me, but how does the average, non IT-savvy researcher make use of all of this? Julie asked “What is the (e) in your eResearch?”, and this very useful question helped give context to each of the presentations.

For the keynote presenter, Markus Buchhorn, of Intersect New South Wales, it seems the (e) is somewhat of an €, or at least our Australasian $ sign version of such. He presented on the “eResearch landscape in Australia”. It was evident that our neighbours across the Tasman are well organised, and have invested significant money into eResearch. Their NCRIS programme1 (National Collaborative Research Infrastructure Strategy) is investing $540 million over 4 years. In order to maximise the development and use of shared ICT infrastructure for research, they focused on “friendly collaboration encouraged by force!”. That is, they allowed only one proposal for each research discipline, requiring a facilitator and consensus within that discipline, and provided $20-70 million over 4-5 years for those people to develop their required ICT infrastructure.

In addition, ‘Platforms for Collaboration’  was set up, and given $80 million over four years to fill in the gaps the individual programmes couldn’t deliver themselves. This includes a national supercomputing facility, an advanced research network (AREN), the Australian Access Federation for authentication/authorisation across organisations, the Australian Research Collaboration Service for tools to help researchers collaborate online, and the Australian National Data Service to provide advice on data curation, preservation, publication, and a ‘research data commons’ for Australia. As we learned later in the day, New Zealand may have the most supercomputing power per capita, but the Australians are investing proportionally more into supporting eResearch than we are. The challenge they still had however, was getting researchers actually using the above tools. This is where Intersect stepped in. They provide eResearch Analysts, placed out at the Universities, to help researchers understand how to apply eResearch infrastructure and tools in their research.

For Australia then, the (e) in eResearch isn’t just the money for ICT that ‘enhances’ and ‘enables’ research, it’s ‘engagement’, the human side and culture change aspects.

Third lesson in eResearch – regardless of how much technology you put in, if you don’t pay attention to the human aspects, it just won’t work, i.e. the soft stuff is the hard stuff.

Over the rest of the day, we heard about eResearch in the humanities, NIWA’s High Performance Computing Facility, BeSTGRID (our GRID computing infrastructure), eResearch and online volunteerism, the NZ Electronic Text Centre’s migrating a settler poet’s work to the web, astrophysics and the universe at high time resolution, and the curing of unwell online students.

Fourth lesson in eResearch – it is being applied in diverse, beautiful and fascinating ways.

While all the sessions were worthy of individual write ups, there isn’t space in what would constitute a significantly concise blog post. They are all viewable online as streaming video2 however, and the slides can be found at [insert location/endnote link]. Here are two that I personally found compelling.

Republic of Letters

Republic of Letters

For Dr Sydney Shep, from VUW, the (e) in her eResearch is ‘enhanced’ and ‘electronic’. She discussed the use of electronic tools to data mine entire digital libraries of historical literary works to extract broad meaning and ask macro historical questions and understand social themes in ways that would have been impossible by individual researchers physically reading the works. This ‘distant reading’ allows scholars to probe whole systems by counting, mapping and graphing novels. While “Compared with human reading, digital textual analysis is more of a machete than a scalpel, but a lot of useful machete work can be done” 3. For example, ‘FeatureLens4’ was used to study different editions of Darwin’s ‘Origin of Species’ to explore Darwin’s conceptual evolution as dialogue and debate within and outside the scientific community impacted on this thinking5. Another project, “Visualization of the Republic of Letters” – used a geomashup to study the ways ideas were exchanged during the 18th-century virtual gathering and social networks of intellectuals who remained connected through exchange of manuscripts, letters and printed works6.

Slava Kitaev

UPDATE: A magnetar (not an x-ray pulsar)

For Dr Slava Kitaev, from Auckland University of Technology, the (e)in his eResearch was, at least for me, ‘entrancing’. It could also have been ‘extremely large datasets’. He presented on ‘Search for the unknown: Universe at high time resolution’.  The Transient Radio Emission Array Detector (TREAD) project is a collaboration between AUT, VUW, the University of Otago, and the International Centre for Radioastronomy Research in Perth, Australia. It is also supported by the Blue Fern supercomputer at the University of Canterbury, and BeSTGRID. The project involves detecting very transient astronomical phenomenon such as annihilating primordial black holes, anomalous x-ray pulsars, and gamma ray bursts from exploding stars. These phenomena are called transient because they are only detectable over very short time windows, often at the nanosecond scale. This involves gathering massive amounts of data from distributed arrays of sensors (1.7-22Terabytes per day). This is then transferred between supercomputers in Auckland and Christchurch (using BeSTGRID over KAREN) to perform successive steps in the candidate data selection, validation, analysis and long term storage, allowing researchers to identify and understand these transient cosmic phenomena.

NIWA's supercomputer (Credit: NIWA)

NIWA's supercomputer (Credit: NIWA)

In other sessions we heard about KAREN (the Kiwi Advanced Research and Education Network) which, while attractively named, is in fact hard core infrastructure connecting NZ research organisations with each other and internationally using super high speed bandwidth, learned that NIWA has one of the top 500 supercomputers in the world and is using it to simulate extremely complex physical and biophysical systems**, and that the BeSTGRID project7 is providing tools and virtual research environments to allow distributed collaborative research using massive amounts of data on topics as diverse as drug discovery, genetics research, and invasive pest modelling. Without a lot of money our researchers are using technology to achieve some incredible things.

So, for New Zealand, perhaps the (e) in our Research is more like the archetypical kiwi (i)s – ingenuity, innovation, and inspiration.

Fifth lesson in eResearch – it’s an opportunity for NZ researchers to overcome our tyranny of distance and lack of resources and change the world, just as Ernest Rutherford did in his time.

Julian Carver is an independent consultant focused on information systems related strategy and cross agency data sharing. He has been involved in many eResearch and science data sharing initiatives.

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Footnotes:

[1] NCRIS

[2] Streaming video of the Wellington eResearch Symposium sessions

[3] Quote abbreviated from Martin Meuller

[4] Featurelens – From the Human Computer Interaction Lab at the University of Maryland

[5] On the Origin of Species: The Preservation of Favoured Traces

[6] Video about The Republic of Letters (For the website itself, go here. Tip: click on ‘flow’ – very beautiful)

[7] BeSTGRID

* This post was corrected on June 17th to more accurately reflect who organised the Symposium

** Corrected: previously read “for climate science research’

Engaging Students – Ideas from the School of Chemistry, University of Bristol Guest Work Jun 16

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By Dr Michael Edmonds

A couple of weeks ago, I attended a fascinating talk by Dr Paul Wyatt from the University of Bristol entitled “Teaching Innovations – Using Technology to Enrich the Traditional”. The talk described many of the innovative techniques used to teach practical chemistry at the University of Bristol as part of the School of Chemistry’s Chemistry Laboratory Sciences (ChemLabS) programme. The ChemLabS programme is one of England’s 74 Centres for Excellence in Teaching and Learning.

One of the problems experienced with traditional chemistry lab experiments is that many students come into the lab, follow the instructions like a recipe, go home with the results and try and make sense of them. This is hardly conducive to learning, nor does it correctly model how science really works.

Dr Wyatt and his colleagues have dealt with this problem through the use of a Dynamic Laboratory Manual (DLM) . This web based laboratory manual requires students to access it prior to attending the laboratory in order to carry out a number of activities. A safety quiz must be completed to demonstrate that students have read up on the hazards they might encounter. Low scoring students can sit the quiz a second time (which contains different questions to prevent rote learning). Student quiz scores are electronically available to the lab supervisor, and any students scoring below 80% in the safety quiz are red flagged and must report to the lab supervisor at the beginning of the lab session for safety instruction.

In addition to the safety quiz, the DLM also contains video clips demonstrating how to set up and use of different pieces of equipment. The DLM is accessible via computers situated in the laboratory, so students not only have the opportunity to study techniques at home, but can also look up techniques as they need them in the lab. I can imagine lab demonstrators must appreciate this reprieve from needing to answer the same questions over and over again.

Another innovation is the use of interactive animations in the DLM which illustrate the use of complex pieces of lab equipment. The interactive valves and buttons on the animated equipment allow students to practice equipment use, before being set loose on the real thing, where turning the wrong value or pushing the wrong button could be hazardous for either the student or the equipment.

As well as the development of the DLM, the School of Chemistry has incorporated other innovations, some more controversial than others. Laboratory experiments have been redesigned, with the focus now firmly placed on the skills that students need to develop. As such there is no need for experiments to be grouped into traditional categories such as organic, inorganic, physical chemistry etc. Some experiments are also delivered in an intensive two week programme of laboratory work.

All academic staff, from Heads of Departments to high flying researchers, are required to teach in the laboratories. While other universities allow staff to “buy out” their teaching time, Bristol wants students exposed to the enthusiasm and talents of all of the academic staff. I suspect that initially this would not have been a popular decision for some staff, but from Paul’s talk it sounds like most have found it to be an enjoyable experience.

Paul’s lecture has to have been one of the most interesting talks I have been to in a while, and something I consider worth sharing. More details on the chemistry department’s innovative approaches to teaching can be found here, and it is worth noting that some of the software developed at Bristol is commercially available.

Dr Michael Edmonds is an educator, researcher and manager at Christchurch Polytechnic Institute of Technology. He has strong interests in the communication and promotion of science.

Dealing with “Anti-Science” Commenters on Science Blogs Guest Work Jun 11

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By Dr Michael Edmonds

We’ve all come across them before – commenters on science blogs who propose less than scientific arguments. The fodder for such arguments is varied – vaccines, climate change, “alternative” medicine, the list goes on. The response to such people can vary; on many blogs they become the immediate target of derision, name calling and condescension. However, there is another, and in my opinion much better, response used by some members of the blogosphere – a calm and rational dismantling of the commenters arguments; an attempt to educate not only the commenter, but also other blog readers who may not yet fully understand what science tells us about the topic being discussed.

It strikes me as hypocritical that supporters of science (an endeavour based on rational thinking) can choose to defend science by making emotive attacks on those who they consider ignorant of science. A further frustration is that some “defenders of science” use flawed arguments to defend their own position. Yet if one tries to make even a polite attempt to correct THEM it may be seen as a personal affront. Being able to integrate new pieces of information into one’s arguments, and to admit when you have made a mistake, are important virtues in science. It is unfortunate that these same virtues are not readily embraced by science bloggers and commenters.

One of the hazards of challenging the use of derogatory remarks on blogs is that one may be dismissed as a “concern troll” or an accommodationist. This is another example of hypocrisy. Science does not dismiss arguments out of hand without considering the evidence, nor does it erect strawmen. Most of those who promote the educational approach do not want to accommodate anti-scientific arguments. Instead, we choose to debate them, point by point, on their scientific merit (or lack thereof). It may require more patience and tolerance, and lack the temporary satisfaction of “showing how smart WE are”, but in the long run it seems to me to be the only scientifically valid approach.

Those who question the educational approach may argue that it does not work against the more hardened “anti-scientific” posters. This may be true, but is abusing them a viable alternative? Furthermore, what influence do such attacks have on the casual blog observer other than to convince them that science is the domain of the arrogant and the intolerant.

It is easy to forget, that while many of us find science easy to understand, this natural understanding and enjoyment of science is not necessarily shared by the wider population. Perhaps we need to consider how we have felt in situations when WE were less able and abused for it? As a high school student I struggled with speaking Maori in a class where the teacher would verbally abuse students when we mispronounced words. Did the verbal abuse help me learn to speak Maori? Of course not! To this day I cannot even think about speaking Maori, without my stomach knotting up.

My experience as an educator has convinced me that derision has no place in science education or advocacy. Learning does not occur through bullying or arrogance. Such approaches are more likely to harden the resolve of those arguing with us. However, if one is persistent in explaining how science works, takes the time to listen to opposing arguments and challenges them only when they are erroneous, we will not only be teaching science, we will be demonstrating the scientific process in action.

Dr Michael Edmonds is an educator, researcher and manager at Christchurch Polytechnic Institute of Technology. He has strong interests in the communication and promotion of science.