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Journal club on the Node

Figure 1 Schematic of the clock model as proposed by Thorogood (1991). (A) The bold arrow represents the timing of the AER-to-AF transition in the developmental process. (B-D) Hypothesized representations of fin/limb development in the clock model (above) with endochondral skeletal patterns of the fin/limb (below,). (B) Fin development in a teleost, demonstrating a short period of time with AER signaling prior to the AER-to-AF transition.   (C) Fin development in lobe-finned fishes, showing a longer relative time with AER signaling prior to AF transformation. (D) Limb development in a tetrapod, in which AER signaling persists throughout limb development. Figure modified from Yano et al. [3]; based on Thorogood [2]; with fossil form representations in C-D from Long et al. [4].

If I could turn back time: an embryological look at the fin-to-limb transition

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Stem Cells in Developmental Biology: a debate at the BSDB

On how odd critters can answer important questions

Becoming a confident scientific speaker

Posted by on March 9th, 2013

Like needles in a haystack, interesting speakers that bring charisma and rock n’ roll to their talks are hard to come by. No matter what the research interests of the audience, these speakers hypnotize the audience with their funny analogies and the confidence in their data. Leaving the audience inspired to run back to the lab, read more papers, carry on into post-docing or become a PI…. Read more at www.postpostdoc.com/becoming-a-confident-scientific-speaker
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Interview with BSDB poster award winner Stephen Fleenor

Posted by on May 9th, 2012

Winners of the student poster competition at the annual BSDB meeting get an amazing prize: they receive a registration for the annual SDB meeting in North America. And, vice versa, winners of the SDB poster competition get to go to the BSDB meeting in the UK.

Sadly, the winner of last year’s SDB poster competition, Tracy Chong, was unable to make it to the UK for the BSDB meeting last month. She did write a great post on the Node about her work, so you can read that to find out what her poster was about.

In Tracy’s place, Steffen Biechele attended the BSDB meeting. He was a runner-up in the poster competition, and not at all expecting to be attending the BSDB meeting until he was contacted a few weeks beforehand!

As the substitute SDB poster winner, Steffen interviewed this year’s BSDB poster winner. The poster award went to Stephen Fleenor, a PhD student in Jo Begbie’s lab at Oxford University.

Interview:

Steffen Biechele: You won yesterday’s poster competition. Which lab do you work for?

Stephen Fleenor:
I work in Jo Begbie’s lab. I’ve been there as a PhD student for about six months. Prior to that I did a rotation stint for five months, so I’ve been there about a year in total.

SB: Wow, you won a post award after six months – that’s fantastic.

SF: I’m equally surprised!

SB: What was the poster about?

SF: It was largely an introduction to the system that we’re studying, and the phenotype of a knockdown that I did. I knocked down a molecule known to be a catalytic regulator of G-protein signaling, but its regulation in this manner hasn’t been characterized in our system.

SB: What system is that?

SF: Developmental cranial sensory ganglia in the chick embryo. We’re looking at the generation of neuroblasts and migration of those neuroblasts toward the site of the ganglia proper. We’re trying to figure out what’s guiding them, what’s cueing them to begin differentiation and guiding the kinetics of their migration.

SB: Have you presented a poster at a meeting before?

SF: No. This is my first conference, as well. This has all been a whirlwind of excitement!

SB: What’s next?

SF: Well, apparently I’m going to the SDB Meeting in Montreal!


At the SDB meeting, Stephen is, in turn, going to try to interview the SDB poster winner, so we should hear from him again in a few months. The poster winners at the SDB meeting are announced at the very end of the conference, so the logistics are a bit more difficult than at the BSDB, where there is still half a day of talks after the announcements. Consider it an experiment. As it goes with all experiments, we hope it will be successful, but we won’t know if it works until we try!
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