Jun 25, 2010

They Might Be Giants: Science is Real - a music video



Via my Daily on Twitter >>> Michael Banks (Twitter) >>> Rocking the physics message (physicsworld.com) >>> They Might Be Giants (ParticleMen, YouTube).

Read the rest of the article >>>

Jun 22, 2010

TED videos: excellent talks about life, the universe and everything -- including microbes

Modified TED logoTED is a nonprofit organization devoted to "ideas worth spreading." They are mostly known because of their growing collection of fascinating talks about a wide array of topics, including science, art and anything in-between (or around). The talks are recorded and the videos are freely available at their website, where you can also find information about the speakers and interactive transcripts (including translations to various languages).

In this post I'm collecting links to all the TED videos I could find related to the microbial world.

Topics include: life in the deep oceans, medical mysteries, bacterial Esperanto, predicting pandemics, robots turned into microbiologists, new approaches to handle infectious diseases, looking for life on Mars and beyond, fungi that could save the world, bacteria that may have caused mass extinctions...

Awesome, huh?

I'm also embedding a video for one of the latest TED talks: Seth Berkley: HIV and flu -- the vaccine strategy. The speaker, epidemiologist Seth Berkley, is the founder of the International AIDS Vaccine Initiative. In this talk, filmed last February, he spoke about new methods for making vaccines for AIDS and flu.





I also recommend reading this interview on the TED blog, where Seth Berkley commented on the same subject. I am copying here a few remarkable quotes:

I was very disappointed by public concerns that we ordered too much flu vaccine and that some might get wasted. (...) I think that both declaring this a global pandemic and accelerating vaccine production as quickly as possible were the right decisions. If you want to prepare a population for an emergency it means that you might ultimately spend some money that isn’t used.
That's a good point. Many criticisms have been raised in the last months against WHO decisions in relation to the recent flu pandemic. And some of those criticisms were undeserved, in my opinion.


In the interview, Berkley explained why so much effort was put on developing treatments --rather than preventive vaccines-- for AIDS. And he described the extraordinary work they're doing with the International AIDS Vaccine Initiative.


To the question "Are the members of the younger generation of scientists as invested in creating a vaccine as was the case 10 years ago or so?" he responded:
Sadly not. (...) The problem is not that young scientists don’t think vaccines are incredibly important, the problem is that it is seen as such a difficult problem, such a long-term problem that what they’re worried about is: Can they build a career on it? Can they get the types of breakthroughs they need in a rapid time frame that would make it a productive place to work?
It is disturbing that the "productivity" concept not only is doing harm to many researchers' careers but may also be slowing down the development of much-needed medical treatments...


Why not focus just on the treatment of infected people, and forget about an AIDS vaccine? Berkley explained:
(...) from a public policy point of view, there’s great expense involved in dealing with the epidemic through treatment and reaching people when they’re already infected. (...) But this is a long-term entitlement program, because once you put somebody on treatment, they have to get treatment for the rest of their lives and they develop conditions, they develop toxicity and they need other treatments. So, there’s almost a sense now that all of the bright lights of that unbelievable effort -- the unprecedented emergency program for AIDS relief, Bush’s triumph that people look on as being a great thing that he did, will create a demand that gets higher and higher and higher just to keep up with where we are.
So, making an effective vaccine against AIDS may be very difficult. But it is worth the effort.




And finally, as promised, this is the list of other TED videos related to the small living beings (in chronological order, newest first):


[Added October 15th, 2010 -- Eben Bayer: Are mushrooms the new plastic? "Product designer Eben Bayer reveals his recipe for a new, fungus-based packaging material that protects fragile stuff like furniture, plasma screens -- and the environment." July 2010. Found via MicrobiologyBytes.]


TED video: Magnus LarssonMagnus Larsson: Turning dunes into architecture. "Architecture student Magnus Larsson details his bold plan to transform the harsh Sahara desert using bacteria and a surprising construction material: the sand itself." July 2009.





TED video: Nathan WolfeNathan Wolfe: hunting the next killer virus. "Virus hunter Nathan Wolfe is outwitting the next pandemic by staying two steps ahead: discovering deadly new viruses where they first emerge -- passing from animals to humans among poor subsistence hunters in Africa -- before they claim millions of lives." February 2009.





TED video: Bonnie BasslerBonnie Bassler: discovering bacteria's amazing communication system. "Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine, industry -- and our understanding of ourselves." February 2009.





TED video: Hans RoslingHans Rosling on HIV: New facts and stunning data visuals. "Hans Rosling unveils new data visuals that untangle the complex risk factors of one of the world's deadliest (and most misunderstood) diseases: HIV. He argues that preventing transmissions -- not drug treatments -- is the key to ending the epidemic." February 2009.





TED video: Kary MullisKary Mullis' next-gen cure for killer infections. "Drug-resistant bacteria kills, even in top hospitals. But now tough infections like staph and anthrax may be in for a surprise. Nobel-winning chemist Kary Mullis, who watched a friend die when powerful antibiotics failed, unveils a radical new cure that shows extraordinary promise." February 2009.





TED video: James NachtweyJames Nachtwey fights XDR-TB. "Photojournalist James Nachtwey sees his TED Prize wish come true, as we share his powerful photographs of XDR-TB, a drug-resistant strain of tuberculosis that's touching off a global medical crisis. Learn how to help at http://www.xdrtb.org" October 2008.





TED video: Paul StametsPaul Stamets: six ways mushrooms can save the world. "Mycologist Paul Stamets lists 6 ways the mycelium fungus can help save the universe: cleaning polluted soil, making insecticides, treating smallpox and even flu." March 2008.





TED video: Peter WardPeter Ward: Earth's mass extinctions. "Asteroid strikes get all the coverage, but "Medea Hypothesis" author Peter Ward argues that most of Earth's mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen sulfide, may have an interesting application in medicine." February 2008.





TED video: Paul EwaldPaul Ewald: can we domesticate germs? "Evolutionary biologist Paul Ewald drags us into the sewer to discuss germs. Why are some more harmful than others? How could we make the harmful ones benign? Searching for answers, he examines a disgusting, fascinating case: diarrhea.". March 2007. (I embedded this video in a previous post.)





TED video: Bill StoneBill Stone explores the world's deepest caves. "Bill Stone, a maverick cave explorer who has plumbed Earth’s deepest abysses, discusses his efforts to mine lunar ice for space fuel and to build an autonomous robot for studying Jupiter’s moon Europa." "How do you take a robot and turn it into a field microbiologist?" March 2007.





TED video: Laurie GarrettLaurie Garrett on lessons from the 1918 flu. "In 2007, as the world worried about a possible avian flu epidemic, Laurie Garrett, author of "The Coming Plague," gave this powerful talk to a small TED University audience. Her insights from past pandemics are suddenly more relevant than ever." February 2007.





TED video: Penelope BostonPenelope Boston says there might be life on Mars. "So the Mars Rovers didn't scoop up any alien lifeforms. Scientist Penelope Boston thinks there's a good chance -- a 25 to 50 percent chance, in fact -- that life might exist on Mars, deep inside the planet's caves. She details how we should look and why." February 2006.





TED video: Larry BrilliantLarry Brilliant wants to stop pandemics. "Accepting the 2006 TED Prize, Dr. Larry Brilliant talks about how smallpox was eradicated from the planet, and calls for a new global system that can identify and contain pandemics before they spread". February 2006.





TED video: Joe DeRisiJoe DeRisi solves medical mysteries. "Biochemist Joe DeRisi talks about amazing new ways to diagnose viruses (and treat the illnesses they cause) using DNA. His work may help us understand malaria, SARS, avian flu -- and the 60 percent of everyday viral infections that go undiagnosed." February 2006.





TED video: David GalloDavid Gallo on life in the deep oceans. "With vibrant video clips captured by submarines, David Gallo takes us to some of Earth's darkest, most violent, toxic and beautiful habitats, the valleys and volcanic ridges of the oceans' depths, where life is bizarre, resilient and shockingly abundant." February 1998.






Read the rest of the article >>>

Jun 18, 2010

Live webcast & Twitter: great combination for scientific conferences



Sing-along tweet
As I mentioned in my previous post, thanks to the internet, I could peek into the meeting of the American Society for Microbiology (ASM), recently held in California, from the comfort of my home at London, UK. This was possible because some of the meeting attendees posted comments on Twitter, in real time, and also because the meeting organizers made a live video broadcast available to everyone through the internet (that is, a webcast).

ASM Live on UStream
The webcast, called ASM Live, consisted of nine interviews to researchers on their latest findings. The interviews were very aptly handled by Jeff Fox, Features Editor for Microbe Magazine (a freely available, monthly magazine published by the ASM). Moreover, viewers were allowed to submit questions to the researchers by either using the online chat (provided by UStream) or tweeting to @MicrobeWorld.

Two of the most popular interviews seemed to be The Gulf oil spill: microbes to the rescue? and The first synthetic genome: what does this mean for microbiology, and for everybody else?? [note that there were two question marks in the original title, and this is not necessarily a typo :) ]

Twitter - ASMnewsroom
All the interviews were really interesting -- and you can still watch them: they are archived at MicrobeWorld (an online community for sharing multimedia resources related to microbiology) and UStream.tv (the live interactive broadcast platform that was used for the ASM webcast).

Twitter - Cesar Sanchez
My sincere congratulations to everybody involved in the making and broadcasting of the interviews, that was a great piece of work!


And now, let's focus on Twitter.

Twitter - Michael Barton
About 1,200 messages containing the #asmgm hashtag were posted to Twitter in relation to the ASM meeting. There were all kinds of messages, and many of them were informative, insightful, or funny. Some of them included links to interesting articles or websites, while others redirected to photos captured during the meeting. I mentioned a couple of popular tweets in a previous blog post, and I'm including here a few more as illustrations.

Twitter - Morgan Langille
However, if you search for the #asmgm hashtag on Twitter, you will only get recent messages posted during the last 7-10 days -- which is really disappointing.

Luckily, Alan Wolf had the brilliant idea of creating an archive for #asmgm tweets on Twapper Keeper. The archive is freely available online, so anybody can read and download all the messages.

Twitter - Jonathan Eisen
In addition to archiving, there are other ways of reading 'old' Twitter messages: for instance, I find Topsy quite useful. However, archiving seems a very sensible idea to me -- especially for scientific conferences.

[Note: Twapper Keeper can only reach back as far as Twitter allows, so the archive needs to be started as soon as possible (ideally a few days before the conference, to include any pre-meeting tweets)]

Twitter - Jonathan EisenOnce the ASM meeting was over, I thought that a word cloud, as a visual representation of 'hot topics' (the most tweeted), could be a nice illustration for a blog post. So, I searched the internet looking for a suitable, user-friendly online tool that would generate -- automagically -- the perfect word cloud for me. But I did not find it.

After a trial-and-error process, I finally made a nice-looking cloud (which was featured image of the week at MicrobeWorld) using Wordle, but the result wasn't exactly what I had in mind:

Word cloud for tweets containing the ASMGM hashtag
Why wasn't I fully satisfied with my cloud? Firstly, because I had to do a lot of manual editing of the tweets: removing highly repetitive terms (such as "#asmgm", "RT"), fixing typos, stemming (a little), putting some words together to create meaningful tags (e.g. "San-Diego")... Also, the cloud was colourful and nice-looking, but the words were not individually hyperlinked (as in most tag clouds, see for instance the cloud located at the upper right side of my blog).

Twitter - Comprendia[Note: a tweetup is a meeting of two or more people who know each other through Twitter]

There are some online tools to generate tag clouds from Twitter messages. For instance, Tweetcloud seems to get quite close to what I have in mind. It indeed generates a tag cloud for a specific keyword (or user). But it seems to be limited by the Twitter search function (it only uses messages posted in the last 7-10 days). So, I guess I could have used this tool the day after the ASM meeting to create a cloud... but I didn't known about Tweetcloud at the time. Still, the cloud is not customizable at all.

Twitter - Mr. Gunn
So, I want to finish this post summarizing the characteristics of what I think would be an ideal tool to create word clouds from Twitter messages:

A) General
  • Freely available, online tool.

  • It could make a cloud for a hashtag, a word, a term composed of several words, or a Twitter user.

B) Searching Twitter
  • It wouldn't be limited by the 7-10 days boundary of the present search function of Twitter.

  • It would provide options to define specific limits for time (e.g. "only tweets posted between two given dates") and number of tweets ("only the last 100 tweets").

  • Options to exclude, or include, certain types of messages (replies, retweets, containing links, linking to images, linking to videos) or users ("exclude these users").

C) Creating the cloud
  • Options to use only hashtags (similar to My Tweet Cloud), exclude particular words (common words, numbers), use only particular types of words (e.g. nouns?).

  • Stemming.

  • It would detect possible typos, showing a list of candidates to be fixed. The user would decide if they should be corrected or not.

  • It would suggest possible tags composed of more than one word (e.g. "San" and "Diego" are always found together, do you want the tool to combine them into a single tag "San Diego"?). The user would decide.

  • The tags in the cloud should be hyperlinked. That is, clicking on a term such as "San Diego" would redirect to a list of tweets that included such a term.

D) Customizing the aspect of the cloud
  • Options to change the colour and relative orientation of tags, and the general aspect of the cloud (similar to Wordle).

  • Options to create an animated cloud showing changes in time (or location, user, etc). For instance, several clouds could be generated for a hashtag for different days (similar to this example) and could be combined into a single animated cloud. The user would define the period used to create each 'sub-cloud' (e.g. every day, every 6 hours) and the number of clouds needed for a smooth animation.




Please leave your comments, ideas or suggestions on creating Twitter tag clouds, or on the use of live webcast and Twitter for scientific conferences.




Twitter - Jennifer Gardy


Twitter - Cesar Sanchez



Note added on June 23rd:
I just read a great article on this topic: Twitterpated: Using Social Media at Academic Conferences. I found it via Hacking the Academy, a book that was crowdsourced on Twitter in one week. It deals with online education, scholarly communication and much more.


Related links:

- Added July 3rd: How to create a PDF archive of hashtagged tweets by Andrew Spong, STweM. It describes a simple workflow for archiving conference tweets. Found via FriendFeed.

- Added August 15th: SfN the Meh by DrugMonkey. Advice to the Society for Neuroscience (and other scientific societies): how to use social media for your next conference.

- Added August 22nd: Tagxedo - Tag Cloud with Styles. Tagxedo turns any word set (texts, blogs, tweets) into a visually appealing tag cloud. The cloud can fit a predetermined shape or silhouette. Link found via Andrew Spong's FriendFeed.

- Added September 4, 2010: Summarizr is a service that creates "a brief summary of a Twapper Keeper tweet archive. It works for #hashtag archives, keyword archives and @person archives. Just enter a hashtag, keyword, Twitter account name or archive URL in the form". See Twitter usage at the ASM meeting, based on TwapperKeeper archive of hashtag #asmgm.


Read the rest of the article >>>

Jun 7, 2010

Highlights from a scientific conference, observed via Twitter - #asmgm

Lots of conferences and meetings on science-related topics are held every year, all over the world. Many of them cover wide topics with potential to excite the curiosity of a great number of scientists and --more importantly-- common people. Sometimes, a few highlights of a conference are reported by the mass media, and that's good...

...but wouldn't it be even better if anybody could catch a glimpse of a particular conference, in real time? What about getting comments made by some of the attendees about a talk that is happening right now? And, what if the speaker could answer, in real time, a question asked by anybody from anywhere in the world?

Well, this is already happening, thanks to the internet!

In this blog post and an upcoming one, I'll describe some examples on how social media and other internet tools were used during a recent meeting of the American Society for Microbiology.

If you keep reading, you might learn a couple of interesting things about microbes. I also hope that these blog posts may give us all some food for thought about possible, better uses of the internet (and, in particular, social media) for the communication of science.

I'll be waiting for your comments, so don't be shy, I'm learning here!


American Society for Microbiology logoThe American Society for Microbiology (ASM) is the largest life science membership organization in the world, with over 43,000 members (and more than one third of them, like myself, are located outside the United States). General meetings, held once a year, are huge events with over 10,000 attendees, and cover new research related to the biology of microbes.

The latest general meeting took place in San Diego (May 23-27), and I tried to follow the event as closely as possible through the internet. Good for me: many attendees shared their thoughts, in real time, using social media. Also, and I think this is praiseworthy, the ASM actively used a battery of social media channels, and broadcasted on the internet several live interviews with selected scientists. And all this internet activity was freely available to anyone.

During those days, I followed the messages that the ASM and the attendees posted on Twitter, the popular microblogging service. To do this, I didn't need to know who was attending the meeting -- I just searched for Twitter messages (a.k.a. tweets) containing the following tag (or hashtag) that was chosen beforehand by the organizers: #asmgm (abbreviation for "ASM general meeting"). In the simplest way, this can be done using the "search" function of Twitter, as you can see if you click here (but note that tweets older than a few days are not retrieved).

So, when somebody wanted to post a tweet related to the ASM meeting, they just added the #asmgm hashtag, as in this example:

Charlie Bamford: Never drink beer with a mustache. The lipids in the hair will ruin the chemistry of the yeast.
The tweet was written by science writer Carl Zimmer, and was one of the most retweeted messages during the meeting. It referred to a talk entitled "The biochemistry of beer" being given at that precise moment by Charlie Bamforth, a professor from the University of California, Davis.

Other Twitter messages posted by meeting attendees were also retweeted many times. I wonder how far the #asmgm tweets reached, having in mind that some of the twitterers at the ASM meeting had many hundreds of Twitter followers (e.g. Carl Zimmer has over 18,000)... Is there a practical way to calculate the total audience that a single tweet has had during a certain period? I don't know -- but I'm pretty sure that the room where Charlie Bamforth gave his "beer talk" wasn't big enough to hold all the people who read his "mustache quote" on Twitter.


Another memorable quote from the ASM meeting was:

Genomes are verbs, not nouns
The quote was pronounced by Edward DeLong, professor at the Massachusetts Institute of Technology, during his talk "Evolution and ecology in microbial ecosystems: unity in diversity." On a later tweet, Zimmer wrote: "Clarification of previous tweet/koan: genomes are not fixed. They are ever-changing, swapping genes, shuffling segments, mutating,etc."


Finally, another tweet by Carl Zimmer summarised a general idea that is common knowledge among microbiologists (or so I like to think) but might sound like news to many other people:

Only 7 of the 100 bacterial phyla include microbes that make us sick.
I'm not sure where the quote came from, as there were many talks going on at the same time (the meeting program has 350 pages, and that's without abstracts!). But it's clear that most types of bacteria on Earth are harmless to us. I would even say that most microbes don't even know that we humans exist... It's only because of our hard-to-eradicate anthropocentrism that we feel that microbes exist only to make us sick (and to provide us with beer, of course!).


But this blog post is getting very long, so I'm interrupting it here. The story about the ASM meeting and social media continues in my next post.

Read the rest of the article >>>

Jun 3, 2010

A Twitter view of the general meeting of the American Society for Microbiology - #asmgm

Word cloud for tweets containing the ASMGM hashtag
The above image is a word cloud generated from about 1200 tweets (that is, messages posted on the microblogging service Twitter). All these tweets are related to the general meeting of the American Society for Microbiology (ASM), which was recently held in San Diego, California (May 23-27).

Please wait for my next blog post, where I'm going to tell you about a few things that could be learnt about microbes by following the ASM meeting on the internet -- no matter your physical location on Earth (and beyond?). Also, I'm going to explain how I made the word cloud -- I'm pretty sure there must be a better and easier way to do this, so I would certainly appreciate your feedback on my next post.

Note: unfortunately, the tags in the cloud are not hyperlinked. The image was generated using Wordle.

Read the rest of the article >>>

Creative Commons License Except where otherwise noted, blog posts by Cesar Sanchez in Twisted Bacteria are licensed under a Creative Commons Attribution 3.0 Unported License. Please let me know if any quotes or images on this blog are improperly credited. E-mail: TwistedBacteria AT gmail DOT com . Social media icons by Oliver Twardowski and AddThis.