- October 28, 2009
- 12:22 AM
- 1,241 views
(Sieve) Size Matters
by Kevin Zelnio in Deep Sea News
Enter the sieve. It is a marine biologists best friend, saving hours of sorting and enabling quantification of fauna. In fact you can get these miracle workers at McMaster-Carr for a mere $40-50. You take good care of these puppies and they will last several graduate student’s lifetimes! I prefer the 500 micron mesh size [...]... Read more »
Gage, J., Hughes, D., & Gonzalez Vecino, J. (2002) Sieve size influence in estimating biomass, abundance and diversity in samples of deep-sea macrobenthos. Marine Ecology Progress Series, 97-107. DOI: 10.3354/meps225097
Breea Govenar, Derk C. Bergquist, Istvan A. Urcyuo, James T. Eckner, & Charles R. Fisher. (2002) Three Ridgeia piscesae assemblages from a single Juan de Fuca sulphide edifice: structurally different and functionally similar. Cahiers Biologie Marine , 247-252. info:/
Pavithran, S., Ingole, B., Nanajkar, M., & Goltekar, R. (2009) Importance of sieve size in deep-sea macrobenthic studies. Marine Biology Research, 5(4), 391-398. DOI: 10.1080/17451000802441285
- October 27, 2009
- 08:56 PM
- 1,722 views
Holy fellatio, Batman! Fruit bats use oral sex to prolong actual sex
by Ed Yong in Not Exactly Rocket Science
Many humans whinge about not getting oral sex often enough, but for most animals, it's completely non-existent. In fact, we know of only animal apart from humans to regularly engage in fellatio - the short-nosed fruit bat (Cynopterus sphinx).
The bat's sexual antics have only just been recorded by Min Tan of China's Guangdong Entomological Institute (who are either branching out, or are confused about entomology). Tan captured 60 wild bats from a nearby park, housed them in pairs of the opposi........ Read more »
Tan, M., Jones, G., Zhu, G., Ye, J., Hong, T., Zhou, S., Zhang, S., & Zhang, L. (2009) Fellatio by Fruit Bats Prolongs Copulation Time. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007595
- October 27, 2009
- 08:30 PM
- 779 views
Tautomers need some love
by The Curious Wavefunction in The Curious Wavefunction
Now here's a paper about something that every college student knows about and which is yet not considered by people who do drug design as often as it should- tautomers. Yvonne Martin (previously at Abbott) has a nice article about why tautomers are important in drug design and what are the continuing challenges in predicting and understanding them. This should be a good reminder for both experimentalists and theoreticians to consider tautomerism in their projects.So why are tautomers important? ........ Read more »
Martin, Y. (2009) Let’s not forget tautomers. Journal of Computer-Aided Molecular Design. DOI: 10.1007/s10822-009-9303-2
- October 27, 2009
- 08:30 PM
- 752 views
Tautomers need some love
by The Curious Wavefunction in The Curious Wavefunction
Now here's a paper about something that every college student knows about and which is yet not considered by people who do drug design as often as it should- tautomers. Yvonne Martin (previously at Abbott) has a nice article about why tautomers are important in drug design and what are the continuing challenges in predicting and understanding them. This should be a good reminder for both experimentalists and theoreticians to consider tautomerism in their projects.So why are tautomers important? ........ Read more »
Martin, Y. (2009) Let’s not forget tautomers. Journal of Computer-Aided Molecular Design. DOI: 10.1007/s10822-009-9303-2
- October 27, 2009
- 08:27 PM
- 571 views
Under the Weather
by Journal Watch Online in Journal Watch Online
Primate declines tied to El Nino cycles
... Read more »
Wiederholt, R., & Post, E. (2009) Tropical warming and the dynamics of endangered primates. Biology Letters. info:/10.1098/rsbl.2009.0710
- October 27, 2009
- 05:18 PM
- 1,034 views
Hypnosis: Response expectancies?
by Adiemusfree in Healthskills: Skills for Healthy Living
Let’s explore the proposed mechanisms in hypnosis as I wander through the subject this week.
According to some researchers, response expectancies, or ‘the expectation of one’s own non-volitional reactions to situational cues’ are thought to play a major part in both hypnosis and placebo responding. Let’s translate that: a person’s belief that they will respond to [...]... Read more »
Milling, L. (2009) Response expectancies: a psychological mechanism of suggested and placebo analgesia. Contemporary Hypnosis, 26(2), 93-110. DOI: 10.1002/ch.379
- October 27, 2009
- 12:30 PM
- 1,463 views
Telomeres without telomerase in Borrelia spirochetes
by Microbe Fan in Spirochetes Unwound
You've all heard by now that the 2009 Nobel Prize in Physiology or Medicine will be awarded to Elizabeth Blackburn, Carol Greider, and Jack Szostak. They're the ones who figured out that an enzyme called telomerase combats the shortening that occurs at the ends of the linear chromosomes of eukaryotes (including ours) during each round of DNA replication. Telomerase sticks copies of a short string of nucleotides to the 3' ends of the chromosomal DNA. On the other hand, bacteria ........ Read more »
Tourand, Y., Deneke, J., Moriarty, T.J., & Chaconas, G. (2009) Characterization and in vitro reaction properties of 19 unique hairpin telomeres from the linear plasmids of the Lyme disease spirochete. Journal of Biological Chemistry, 284(11), 7264-7272. DOI: 10.1074/jbc.M808918200
Kobryn, K., & Chaconas, G. (2002) ResT, a telomere resolvase encoded by the Lyme disease spirochete. Molecular Cell, 9(1), 195-201. DOI: 10.1016/S1097-2765(01)00433-6
Tourand, Y., Kobryn, K., & Chaconas, G. (2003) Sequence-specific recognition but position-dependent cleavage of two distinct telomeres by the Borrelia burgdorferi telomere resolvase, ResT. Molecular Microbiology, 48(4), 901-911. DOI: 10.1046/j.1365-2958.2003.03485.x
Tourand, Y., Lee, L., & Chaconas, G. (2007) Telomere resolution by Borrelia burgdorferi ResT through the collaborative efforts of tethered DNA binding domains. Molecular Microbiology, 64(3), 580-590. DOI: 10.1111/j.1365-2958.2007.05691.x
- October 27, 2009
- 11:42 AM
- 627 views
Spatial Organization of Multisensory Responses in Temporal Association Cortex
by Greg Hickok in Talking Brains
An important unit physiology paper by Dahl, Logothetis, & Kayser appeared in J. Neuroscience a couple of weeks ago. These authors explored the spatial organization of cells in multisensory areas of the superior temporal sulcus in macaque, in particular the distribution of visual- versus auditory-preferring cells. What they found is that like-preferring cells cluster together in patches: auditory cells tend to cluster with other auditory cells, visual cells tend to cluster with other visual cell........ Read more »
Dahl CD, Logothetis NK, & Kayser C. (2009) Spatial organization of multisensory responses in temporal association cortex. The Journal of neuroscience : the official journal of the Society for Neuroscience, 29(38), 11924-32. PMID: 19776278
- October 27, 2009
- 07:00 AM
- 1,103 views
Evaluating ecotourism in Costa Rica...
by Rob Goldstein in Conservation Maven
... Read more »
Koens, J., Dieperink, C., & Miranda, M. (2009) Ecotourism as a development strategy: experiences from Costa Rica. Environment, Development and Sustainability. DOI: 10.1007/s10668-009-9214-3
- October 27, 2009
- 05:35 AM
- 1,434 views
Answer to MM#06 - Cochlosoma: a peculiar gut denizen
by Psi Wavefunction in Skeptic Wonder
Christopher Taylor just got last week's Mystery Micrograph - it's Cochlosoma anatis, a trichomonad parasite of turkeys. It's sort of related to Pentatrichomonas (Hampl et al. 2006 Int J Sys & Evol Microbiol), although the support for that seems rather weak.(Cooper et al. 1994 Avian Diseases; SEM of Cochlosoma anatis; Bar = 3um)It reminds me of diplomonads (eg. Giardia) with its flat shape and adhesive sucker disc appendage - most likely a good adaptation for the intestinal environment. The........ Read more »
Cooper, G., Shivaprasad, H., Bickford, A., Nordhausen, R., Munn, R., & Jeffrey, J. (1995) Enteritis in Turkeys Associated with an Unusual Flagellated Protozoan (Cochlosoma anatis). Avian Diseases, 39(1), 183. DOI: 10.2307/1592001
Hampl, V. (2006) Affiliation of Cochlosoma to trichomonads confirmed by phylogenetic analysis of the small-subunit rRNA gene and a new family concept of the order Trichomonadida. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 56(1), 305-312. DOI: 10.1099/ijs.0.63754-0
- October 27, 2009
- 03:37 AM
- 1,069 views
Medical Education Evaluated With Twitter
by Dr Shock in Dr Shock MD PhD
The course in their third year of med school about the Brains and the Sensory system in which psychiatry participates is a course of at least three months. It’s made of different sub courses which each take about 3 to 4 weeks. These courses are evaluated at the end. That’s to say months after the [...]
Related posts:Twitter and Medical Education Twitter And Other Mobile Izing Tools For Teaching And Learning...Twitter, Doctors, Hospitals and Medical Education Beginning March 2009 ........ Read more »
Stieger, S., & Burger, C. (2009) Let's Go Formative: Continuous Student Ratings with Web 2.0 Application Twitter. CyberPsychology , 2147483647. DOI: 10.1089/cpb.2009.0128
- October 27, 2009
- 12:00 AM
- 603 views
Autistic children and blood mercury levels
by Grant Jacobs in Code for life
Reviews Hertz-Picciotto et al's study comparing blood mercury autism levels in children with autism or with normal development... Read more »
Hertz-Picciotto I, Green PG, Delwiche L, Hansen R, Walker C, & Pessah IN. (2010) Blood Mercury Concentrations in CHARGE Study Children with and without Autism. Environmental health perspectives, 118(1), 161-6. PMID: 20056569
- October 26, 2009
- 09:30 PM
- 945 views
The role of dynamics in catalysis
by Michael Clarkson in Conformational Flux
For some enzymes, dynamics on the millisecond timescale play a critical role in catalysis. I don't think this is a particularly controversial or unclear statement, but then, I know what I mean by it. In the process of communication, however, the intended meaning sometimes gets lost or transformed. A statement that addresses an entire catalytic cycle, for instance, might be interpreted as addressing only the chemical step. This seems to have happened in a pair of papers that concern the transfer ........ Read more »
Pisliakov, A., Cao, J., Kamerlin, S., & Warshel, A. (2009) Enzyme millisecond conformational dynamics do not catalyze the chemical step. Proceedings of the National Academy of Sciences, 106(41), 17359-17364. DOI: 10.1073/pnas.0909150106
- October 26, 2009
- 09:26 PM
- 1,542 views
Holes in the ice…
by Jim Caryl in mental indigestion
CRYOCONITE (’ice dust’) holes are small pock-like depressions that are strewn over the surface of glaciers, looking much like a pristine snow drift after you’ve thrown a handful of gravel at it. Such melt-holes have been documented on glaciers at both poles, and on other glaciated regions such as Iceland, Greenland, Canada and the Himalayas. [...]... Read more »
ANESIO, A., HODSON, A., FRITZ, A., PSENNER, R., & SATTLER, B. (2009) High microbial activity on glaciers: importance to the global carbon cycle. Global Change Biology, 15(4), 955-960. DOI: 10.1111/j.1365-2486.2008.01758.x
- October 26, 2009
- 05:37 PM
- 840 views
Cascoplecia insolitis: a “monster” fly with five eyes and a horn
by Jacob Aron in Just A Theory
Like many young children, I went through a phase of being obsessed with dinosaurs. I think the appeal is the idea that these monstrous animals actually existed, but are also safely locked away in the past and can’t hurt you.
Now, a new discovery by George Poinar Jr of Oregon State University shows that the dinosaurs [...]... Read more »
Poinar Jr., G. (2009) Cascoplecia insolitis (Diptera: Cascopleciidae), a new family, genus, and species of flower-visiting, unicorn fly (Bibionomorpha) in Early Cretaceous Burmese amber. Cretaceous Research. DOI: 10.1016/j.cretres.2009.09.007
- October 26, 2009
- 05:25 PM
- 1,464 views
Republican Losers Have Lower Testosterone
by Eric Michael Johnson in The Primate Diaries
In a new understanding of the term power grab, researchers have shown that the supporters of a political candidate literally have their power taken from them after they lose an election. In a new study by Steven J. Stanton and colleagues in the open-access journal PLoS ONE, researchers asked 163 Republican and Democratic voters (57 of whom were men) to provide saliva samples both before and after the 2008 election between John McCain and Barack Obama. What the researchers determined was that R........ Read more »
Stanton, S., Beehner, J., Saini, E., Kuhn, C., & LaBar, K. (2009) Dominance, Politics, and Physiology: Voters' Testosterone Changes on the Night of the 2008 United States Presidential Election. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007543
- October 26, 2009
- 04:24 PM
- 762 views
Barack Obama Boosts Testosterone
by Neuroskeptic in Neuroskeptic
But only if you voted for him, and only if you're a man. That's according to a PLoS One paper called Dominance, Politics, and Physiology.It's already known that in males, winning competitions - achieving "dominance" - causes a rapid rise in testosterone release, whilst losing does the opposite. That's true in humans, as well as in other mammals. The authors wondered whether the same thing happens when men "win" vicariously - i.e. when someone we identify with triumphs.What better way of testing........ Read more »
Stanton, S., Beehner, J., Saini, E., Kuhn, C., & LaBar, K. (2009) Dominance, Politics, and Physiology: Voters' Testosterone Changes on the Night of the 2008 United States Presidential Election. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007543
- October 26, 2009
- 03:16 PM
- 607 views
Home Remedy
by Journal Watch Online in Journal Watch Online
Household changes can put major dent in carbon emissions
... Read more »
Dietz, T., Gardner, G., Gilligan, J., Stern, P., & Vandenbergh, M. (2009) Household actions can provide a behavioral wedge to rapidly reduce U.S. carbon emissions. Proceedings of the National Academy of Sciences. info:/10.1073/pnas.0908738106
- October 26, 2009
- 02:33 PM
- 839 views
It was a piece of cake! Hypnosis for sleep and tummy pain
by Adiemusfree in Healthskills: Skills for Healthy Living
After briefly looking at hypnosis yesterday, I found this lovely case study written by Leora Kuttner of an 11 year old girl with problems going off to sleep, including tummy pain and anxiety.
The girl had been through CBT, and introduced to the idea that she had a ‘worry bug’, and that the way to rid [...]... Read more »
Kuttner, L. (2009) CBT and hypnosis: the worry-bug versus the cake. Contemporary Hypnosis, 26(1), 60-64. DOI: 10.1002/ch.375
- October 26, 2009
- 02:01 PM
- 1,254 views
The Best Exercises for the Gluteus Maximus and Gluteus Medius
by Mike Reinold in MikeReinold.com
In a past article, I discussed assessing and treating dysfunction of the gluteus medius. I reviewed an article from the Journal of Strength and Conditioning Research and the author’s recommendations. Taking this information one step further, a recent article in JOSPT has quantified electromyographic activity of the gluteus maximus and gluteus medius during common exercises. This information is helpful when deciding which exercises to perform in your patients or clients. ........ Read more »
DiStefano, L. (2009) Gluteal Muscle Activation During Common Therapeutic Exercises. Journal of Orthopaedic and Sports Physical Therapy. DOI: 10.2519/jospt.2009.2796
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