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Posts Tagged video

Christchurch earthquake geology hour Grant Jacobs May 19

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If you’ve got an hour to spare and are interested in the earthquakes at Christchurch, my hometown, could do worse that watch this lecture given by Martin Reyners, principal scientist at Geological and Nuclear Science. There’s lots of good stuff for non-geologists. (Like me! There’s also a few minor technical glitches, but let them slide.)

It’s hard to imagine a chunk of land that, apparently, once rivalled the Himalayas in height crunching into and pushing it’s way under New Zealand. (If you want to skip the introduction, jump to about four and a half minutes into the video.)

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As a bonus, here’s a map of the earthquakes at Christchurch to date,

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More at Code for life:

Crick’s letter to son, aged 12, explaining DNA structure model

Sea stars and mosaics

Dear journalists and editors, (again)

It’s a small, small world (and three wise monkeys)

One example of why all those genomes from different species are useful to biologists

When things grow wild – post-earthquake natural succession in Christchurch gardens

Camouflage Grant Jacobs Feb 18

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Last week Alison tagged me* in a post where an artist had used his hands to present animals.

In his work, the artist had effectively camouflaged his hands – at a glance we see the animal.

In response to Alison’s post, here’s a video of animals that change their camouflage in response to their environment. They’ve got incredibly malleable skin, changing both it’s colour and surface texture. See if you can see the octopus in the opening scene:

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Epigenetics – introductory explanations Grant Jacobs Feb 06

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Epigenetics is a term that is increasingly being heard of outside of molecular biology or genetics.

One of my interests is how gene regulation works, how the molecules that control genes do their thing. You can think of epigenetics as gene regulation through controlling the availability of genes to be used or not.

While it’s fairly easy to offer some examples of epigenetics, it’s harder to present it a balanced way, in part because understanding it needs a little context, a little explanation of how it fits into the rest of the what‘s going on in the nucleus—the place the DNA is stored in our cells—while our bodies develop and grow.

This TED lecture by Dr. Courtney Griffin from the Cardiovascular Biology Research Program at the Oklahoma Medical Research Foundation gives some of the background.

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It’s a little drier than many TED lectures*—but a lot lighter than formal lectures on the topic!—and worth viewing if you’d like to know more about epigenetics.

A lighter presentation is this from NOVA ScienceNow by Neil Tyson. Lest you think he’s not a star, Neil Tyson has over a million twitter followers.** (And counting.)

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Sir Paul Nurse: Making science work Grant Jacobs Jan 23

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Those wanting to hear for themselves* Paul Nurse’s presentation can view it on the blog at the Office of the Prime Minister‘s Advisory Committee website. Both audio and video versions are available. The recordings are 1 hour 1 minute long.

Footnotes

* Some of you will have read it via Siouxsie Wiles who so abled tweeted under the #SPNAkl hashtag. She’s also storified most of her tweets - good for those that prefer skim-reading!

Feeling oppressed by the administration…? Grant Jacobs Dec 18

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Try this That Mitchell and Webb sketch, Monsieur Garnier and the laboratoire. Research scientists (in commercial settings) in particular.

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Other lighter material at Code for life:

Two half-brains

Distinguishing scams (cartoon)

Friday round-up: zombies, cats, embargoes, XMRV papers

A geeky valentine

Friday’s Factoids and Quirky Quotes

One example of why all those genomes from different species are useful to biologists Grant Jacobs Oct 14

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In this video scientists give an example of how knowing the genomes and biology of many species can be put to use. It also gives some idea why biologists do a lot of work on so-called ‘model’ organisms – species that particular functions can be studied closely.

The scientists in the video wanted to locate genes that might be involved in human diseases caused by defects in the base of the little hairs (cilia) that through rhythmically beating move fluids in some parts of our bodies. The video explains how they got a starting list of genes that might be making proteins the form  the base of cilia by comparing genes in humans and two different types of plants, one with cilia and one without.*

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Epigenetics overview (video) Grant Jacobs Apr 11

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Below Jessica Tyler, from the University of Texas MD Anderson Cancer Center, introduces epigenetics, a topic I’ve touched on a few times and would like to elaborate further on. Her introduction is fairly gentle; hopefully some of the essence of the thing will come across to non-specialists!

You may need to wait until the video is buffered before it starts displaying. Feel free to ask questions in the comments below.

(Excuse the back-to-back videos and no articles – I’m very busy until at least Friday!)

Other articles on Code for life:

Epigenetics, growing old and identical twins becoming unique

Doggie ERVs

Transcribing a gene, free poster

Autism — looking for parent-of-origin effects

Coiling bacterial DNA

Epigenetics and 3-D gene structure

George Church on genomics and personalised medicine Grant Jacobs Apr 06

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Weekend video – for general readers.

This TEDxCambridge lecture by Professor George Church* offers an informal look at progress in genomics and personalised medicine. While very informal compared to some TED lectures, but it does give glimpses of where genomics and personalised medicine might be headed in a series of quick snapshots.**

In the middle of his talk you’ll hear about some kids sequencing genes for their own interest or school projects. For some like me who has been doing computational biology from before the genome projects*** it’s a measure of how far things have come.

There are some examples of new possible treatments being explored.

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His talk assumes a bit of background in places – he’s giving a high-flying overview. Feel free to ask anything in comments below.

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To St Patrick’s day and alcohol Grant Jacobs Mar 18

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Yesterday was St. Patrick’s Day. As I sat reading a book in wonderful sunshine in the nearby botanical gardens accompanied by a beer (of course!) students were suspiciously wearing green. Dunedin is a university town, with all that goes with that. Every event that can be celebrated is.

Here’s a science student’s folk ode to St Patrick’s Day and Saccharomyces cerevisiae (brewer’s yeast), fermentation and all that. It’s even educational!

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From dying stars to dust clouds to us – star stuff, all Grant Jacobs Mar 14

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All the stuff that make up us came from stars. (Some time, ages ago.)

This meme isn’t new, Carl Sagan played it too. This is a lazy mid-week post as I’m starting to nod off toward sleep, but it’s still great to listen well-known American science communicator Neil Tyson’s excellent take on it.

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(I wasn’t quite so keen on the trailing musical portion myself, but what gives?)

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