Category Archives: Joke

Joke, Philosophy

Random

What is a random figure? Computer may be biased when true random numbers are needed (for example for cryptography). Here is a truly random generator, use it at your own risk…

random.png

 

CC-BY-NC Science Surf 27.04.2007, access 23.10.2025
Joke, Philosophy

Hypomania

The Lancet has a comprehensive review of bipolar disorders- finally I learned about the distinction between type I (includes mania) and type II (hypomania). BTW the author thinks that there is no sound evidence for the DSM-IV priority for mood changes; Kraepelin had no priority for mood, thinking or activity altering changes after all). Continue reading Hypomania →

 

CC-BY-NC Science Surf 8.04.2007, access 23.10.2025
Genetics, Joke

Falling asleep

A new study in Science now finds that facts and experiences were better recalled from memory when subjects were cued with a scent during the memorization process and again during slow wave sleep.

Re-exposure to the odor during slow-wave sleep (SWS) improved the retention of hippocampus-dependent declarative memories but not of hippocampus-independent procedural memories. Odor re-exposure was ineffective during rapid eye movement sleep or wakefulness or when the odor had been omitted during prior learning. Concurring with these findings, functional magnetic resonance imaging revealed significant hippocampal activation in response to odor re-exposure during SWS.

I wonder how this could be used for preparing presentations, situations where a persons typically fall asleep during or after the session ;-)

 

CC-BY-NC Science Surf 14.03.2007, access 23.10.2025
Genetics, Joke, Software

Face recognition, face value

With a new child, people are always asking if the baby looks like the father or the mother – probably a prehistoric social reflex to confirm that this is your offspring that you are caring about.
Face recognition clearly is a science of its own – a lot of heuristics and Bayesian computing – more at face-rec.org – and even a big business if you think of automatic passport control or age determination for goods that are only allowed for adults.
Face recognition works quite robust as I found in the advanced online demo at betaface.com. A new browser plugin from polar rose will even allows to annotate web pictures – Orwell meets Flickr.

img000843.jpg

 

CC-BY-NC Science Surf 10.03.2007, access 23.10.2025
Genetics, Joke

What is DANN sequencing?

Did you ever came across DANN sequencing or plasmid DANN?

Here is my explanation: Native German MS WORD always corrects DNA to DANN (“then”). So if you don’t check your text, and your editor doesn’t check your text, and your reviewer doesn’t check your text – you will get an immortal entry in PUBMED like the guys below:

dann.png

You may even earn money with typos …

 

CC-BY-NC Science Surf 8.03.2007, access 23.10.2025
Joke

Computer names, sequencer names, freezer names

Creativity in science – look how computer are being named (seemed there are many da Vinicis and Picassos in bioinformatics). The MDC microsatellite center in Berlin named their sequencers by volcanos (even before pyrosequencing became in vogue), we use European cities for our freezers. Famous chess players would be another idea or use car brands …

 

CC-BY-NC Science Surf 25.02.2007, access 23.10.2025
Allergy, Joke

Something in the air

New studies further question the hygiene hypothesis of allergy induction. One study shows that a household bacterial elimination strategy does not lead to more — it even leads to less asthma.

Children living in a house regularly cleaned with bleach were less likely to have asthma (OR, 0.10; CI, 0.02-0.51), eczema (OR, 0.22; CI, 0.06-0.79) and of being sensitized to indoor aeroallergens (OR, 0.53; CI, 0.27-1.02)

Another study, by designing a 16S rRNA chip, examined a snapshot of urban air in San Antonio — the aerosol harbored at least 1,800 diverse bacterial types

a richness approaching that of some soil bacterial communities

You probably know the joke that before taking a deep breath think where the air has been before…

Addendum

The ecology of human skin has now been also reported – highly diverse, well conserved but low-level interpersonal consensus: scienceblog:doi:10.1073/pnas.0607077104

 

CC-BY-NC Science Surf 20.02.2007, access 23.10.2025