TWiM v3 275

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TWiM

This Week in Microbiology

As a science Professor at Columbia University, Racaniello has spent his academic career directing a research laboratory focused on viruses. His enthusiasm for teaching inspired him to reach beyond the classroom using new media. TWiM is for everyone who wants to learn about the science of microbiology in a casual way.

While there are no exams or pop quizzes, TWiM does encourage interaction with the audience via comments on specific episodes (below), vial email and voicemail at 908-312-0760. Listeners can also use MicrobeWorld to suggest topics for the show by submitting articles or papers to the site and tagging them with "TWiM". Each week Racaniello will view the tagged content and select items for discussion.

TWiM co-hosts include Elio SchaechterMichael Schmidt, and Michele Swanson.

Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.

Wednesday, 26 March 2014 20:45

TWiM #75: Pellicles on pickle jars

Written by

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michelle discuss a symbiosis between a bacterium and fungus that increases the virulence of oral biofilms, and the assembly of amyloid fibers, which are needed for biofilm formation.

rotting-teeth

Right click to download TWiM#75 (59 MB .mp3, 81 minutes).
Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Hosts: Vincent RacanielloElio Schaechter, and Michael Schmidt

Vincent, Elio, and Michael discuss a huge 30,000 year old virus recovered from Siberia, and nested symbiosis facilitated by horizontal gene transfer from bacteria to insect. giant virus

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Right click to download TWiM#74 (51 MB .mp3, 70 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Thursday, 27 February 2014 17:30

TWiM #73: Eyeing root nodule development

Written by

Hosts: Vincent RacanielloMichael Schmidt and Michele Swanson

Vincent, Michael, and Michele discuss how soil-dwelling bacteria induce the formation of root nodules on legumes via a protein called CYCLOPS. Redon cyclops

Right click to download TWiM#73 (57.5 MB .mp3, 80 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Wednesday, 12 February 2014 20:12

TWiM #72: The benefits of virulence

Written by

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michele review how microbial virulence can be increased as a consequence of community surveillance and adaptation to macrophages.Mammalian Drosophila intestine

Right click to download TWiM#72 (53 MB .mp3, 74 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Vincent, Michael, and Michele explain how the gut microbiome modulates colon tumorigenesis, and regulation of intestinal macrophage function by the microbial metabolite butyrate. 

Hosts: Vincent RacanielloMichael Schmidt and Michele Swanson.

Butyric acid

Right click to download TWiM#71 (57 MB .mp3, 78 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Wednesday, 18 December 2013 15:19

TWiM #70: A paroxysmal cough

Written by

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson

Vincent, Elio, Michael, and Michele discuss evidence that the acellular pertussis vaccine fails to prevent infection and transmission in nonhuman primates, and the use of bacterial cytological Pertussis world map by-wiki-Lokal Profilprofiling to identify pathways targeted by antibiotics.

Right click to download TWiM#70 (53 MB .mp3, 73 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Wednesday, 27 November 2013 16:45

TWiM #69: Bacterial DNA in the human genome

Written by

Hosts: Vincent RacanielloElio SchaechterJo Handelsman and Michele Swanson

Vincent, Elio, Jo, and Michele review evidence for bacterial DNA integrated into the human genome, and control of the symbiont population in an insect midgut. 

acinetobacter

 

 

 

 

 

 

Right click to download TWiM #69 (51 MB .mp3, 71 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Wednesday, 13 November 2013 19:46

TWiM #68: The fungus among us

Written by

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson.

Vincent, Elio, Michael, and Michele discuss the amazingly high level of intergenera gene exchange among haloarchaea in an Antarctic lake, and the diversity of fungi on residential surfaces and the human forehead. tested surfaces

Right click to download TWiM #68 (51 MB .mp3, 71 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Wednesday, 30 October 2013 18:05

TWiM #67: Black mushrooms and RNA thermosensors

Written by

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Hosts: Vincent RacanielloElio Schaechter, and Michael Schmidt.

Vincent, Elio, and Michael discuss how temperature triggers Neisseria menigitidis immune evasion, and protection of mice from ionizing radiation by feeding them black mushrooms.auricularia auricula-judae 

Right click to download TWiM #67 (55 MB .mp3, 75.5 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

Thursday, 17 October 2013 16:01

TWiM #66: The shape of a container

Written by

Hosts: Vincent RacanielloElio SchaechterMichael Schmidt and Michele Swanson.

Vincent, Elio, Michael, and Michele discuss the curious outer membrane vesicles of Neisseria meningitidis, and sources of Clostridium difficile infection revealed by genome sequencing.

outer membrane vesicles

Right click to download TWiM #66 (50 MB .mp3, 68 minutes).

Subscribe to TWiM (free) on iTunes, via RSS feed, by email or listen on your mobile device with the Microbeworld app.

Links for this episode:

Send your microbiology questions and comments (email or mp3 file) to twim@twiv.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twim.

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