People rarely go shopping together online. Okay, occasionally I’ll show my wife that I can buy some item or other we need cheaper online than at the mall, but that’s usually just to save the car journey.
Online shopping is essentially a solo occupation, as are many other internet activities. Fundamentally, there is none of the [...]Post from: David Bradley's Sciencetext Tech TalkSocializing online shopping
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Khaled Hassanein, Milena Head, & Chunhua Ju. (2009) A cross-cultural comparison of the impact of Social Presence on website trust, usefulness and enjoyment. Int. J. Electronic Business, 7(6), 625-641. info:/
Coffee contains caffeine, and as everyone knows, caffeine is a stimulant. We all know how a good cup of coffee wakes you up, makes you more alert, and helps you concentrate - thanks to caffeine.Or does it? Are the benefits of coffee really due to the caffeine, or are there placebo effects at work? Numerous experiments have tried to answer this question, but a paper published today goes into more detail than most. (It caught my eye just as I was taking my first sip this morning, so I had to blog ........ Read more »
Harrell PT, & Juliano LM. (2009) Caffeine expectancies influence the subjective and behavioral effects of caffeine. Psychopharmacology. PMID: 19760283
I came across a very cool study last week which was published in the latest issue of the American Journal of Preventive Medicine. In this new paper, Dr Gabrielle Turner-McGrievy and colleagues at the University of North Carolina at Chapel Hill examined the impact of listening to a weight-loss podcast on body weight, physical activity, and fruit and vegetable consumption in overweight men and women. Subjects were randomly allocated to one of two groups; the control group which received a popular ........ Read more »
Turner-McGrievy, G., Campbell, M., Tate, D., Truesdale, K., Bowling, J., & Crosby, L. (2009) Pounds Off Digitally StudyA Randomized Podcasting Weight-Loss Intervention. American Journal of Preventive Medicine, 37(4), 263-269. DOI: 10.1016/j.amepre.2009.06.010
It is widely accepted that competition is a driving force of progress. This is a tenant that our country was built around, and it seems to work pretty well. Whoever can do something the best will profit from it the most. There is no one to hold your hand through inferior work. It is a [...]... Read more »
Mimicking behavior makes women appear physically more attractive to men.... Read more »
Gueguen, N. (2008) Mimicry and seduction: An evaluation in a courtship context. Social Influence, 4(4), 249-255. DOI: 10.1080/15534510802628173
For the people of Chicago, a new study should ease their fears somewhat about the packs of coyotes that roam their city. ... Read more »
Gehrt, S., Anchor, C., & White, L. (2009) Home Range and Landscape Use of Coyotes in a Metropolitan Landscape: Conflict or Coexistence?. Journal of Mammalogy, 90(5), 1045-1057. DOI: 10.1644/08-MAMM-A-277.1
The dating game is cruel. It can be poetic like in sea dragons or it can be lethal like in the spider on the left but, in general, it is not easy.
If the male of the Australian redback spider Latrodectus hasselti doesn't try hard enough, he is immediately killed by the female he was trying to impress. Jeffrey Stoltz and Maydianne Andrade, from the University of Toronto Scarborough, in Canada, showed that the maiden demands at least 100 minutes of display (I saw the news here). If the suitor fai........ Read more »
Stoltz JA, & Andrade MC. (2009) Female's courtship threshold allows intruding males to mate with reduced effort. Proceedings. Biological sciences / The Royal Society. PMID: 19864292
Krakauer, A. (2005) Kin selection and cooperative courtship in wild turkeys. Nature, 434(7029), 69-72. DOI: 10.1038/nature03325
DuVal EH. (2007) Adaptive advantages of cooperative courtship for subordinate male lance-tailed manakins. The American naturalist, 169(4), 423-32. PMID: 17427119
Francisco, M., Gibbs, H., & Galetti, P. (2009) Patterns of Individual Relatedness at Blue Manakin ( ) Leks . The Auk, 126(1), 47-53. DOI: 10.1525/auk.2009.08030
Predators eat prey. Prey, over time, evolve features to evade predators. But what happens when predators go away?
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Fullard, J., Hofstede, H., Ratcliffe, J., Pollack, G., Brigidi, G., Tinghitella, R., & Zuk, M. (2009) Release from bats: genetic distance and sensoribehavioural regression in the Pacific field cricket, Teleogryllus oceanicus. Naturwissenschaften. DOI: 10.1007/s00114-009-0610-1
Busy starting working on slides for a lab meeting talk tomorrow, so today's Sunday Protist will be very brief and undetailed. And thoroughly uninformative. For real this time. Seriously, I say this every freaking time and end up writing a minireview on the damn thing... it's just so damn alluring to go and read up random stuff on these organisms!We've been ignoring Archaeplastids again. Here, have some Scenedesmus:Scenedesmus dimorphus(?) 40x obj, DICOk, my images are shitty (damn thing is motil........ Read more »
ZACHLEDER, V., BI??OV??, K., V??TOV??, M., KUB??N, ?., & HENDRYCHOV??, J. (2002) Variety of cell cycle patterns in the alga Scenedesmus quadricauda (Chlorophyta) as revealed by application of illumination regimes and inhibitors. European Journal of Phycology, 37(3), 361-371. DOI: 10.1017/S0967026202003815
Pickett-Heaps, J., & Staehelin, L. (1975) THE ULTRASTRUCTURE OF SCENEDESMUS (CHLOROPHYCEAE). II. CELL DIVISION AND COLONY FORMATION1. Journal of Phycology, 11(2), 186-202. DOI: 10.1111/j.0022-3646.1975.00186.x
The current state of marriages is well below the social optimum, Swiss sociologists say. So they come up with a mathematical model to "reallocate partners" more efficiently via a shadowy "central agency". Next thing you know, divorces are reduced by 21%, mixed couples become illegal and right-wing nuts triumph...... Read more »
Cao, N., Fragnière, E., Gauthier, J., Sapin, M., & Widmer, E. (2010) Optimizing the marriage market: An application of the linear assignment model. European Journal of Operational Research, 202(2), 547-553. DOI: 10.1016/j.ejor.2009.06.009
A recent review about the relationship between exercise and mental health in the elderly discussed the results of clinical research and biological explanations for the effects of exercise on mental health. Exercise is studied in the elderly in depression, Alzheimer’s disease and Parkinson’s disease.
We’ve discussed the topic of exercise and depression before on this blog. [...]
Related posts:Exercise and Depression According to a recent review of reviews it is...Neuroscienc........ Read more »
Researchers at the Technical University of Munich and the University of Münster have identified several new chemicals in the complex brew we call beer. Adhumulone is one of several compounds present in hops and converts in a pinacol rearrangement to iso-adhumulone - a key bitter compound - as a cis and trans-isomer during beer processing. The bitter taste of beer (a quality) disappears over time - limiting shelf life - as the amount of trans humulones decreases (significantly the cis isomer is ........ Read more »
Intelmann, D., Kummerlöwe, G., Haseleu, G., Desmer, N., Schulze, K., Fröhlich, R., Frank, O., Luy, B., & Hofmann, T. (2009) Structures of Storage-Induced Transformation Products of the Beer’s Bitter Principles, Revealed by Sophisticated NMR Spectroscopic and LC-MS Techniques. Chemistry - A European Journal. DOI: 10.1002/chem.200902058
On April 23 of this year the Swift Gamma-Ray Burst Telescope detected, just as it was designed to do, a gamma-ray burst (GRB). Within less than a day two of the most powerful Earth-based telescopes had begun studying the quickly fading light of the object, known as GRB 090423. (There were other observatories investigating it as well.)Because the light from GRBs fades so rapidly, most such objects are detected from space-based instruments that are especially designed for the purpose, like Swift. ........ Read more »
Tanvir, N., Fox, D., Levan, A., Berger, E., Wiersema, K., Fynbo, J., Cucchiara, A., Krühler, T., Gehrels, N., Bloom, J.... (2009) A γ-ray burst at a redshift of z ≈ 8.2. Nature, 461(7268), 1254-1257. DOI: 10.1038/nature08459
A common goal in most oculoplastic procedures is to increase symmetry. In an effort to establish baseline measures in attractive subjects, Ing et.al. (2006) measured ocular asymmetries in male and female models’ photos in fashion magazine advertisements (e.g., Cosmopolitan, Elle, Glamour, Vogue, Gentleman’s Quarterly, etc.). They found significant asymmetries in:
horizontal fissure width (1)
upper central lid [...]... Read more »
Ing E, Safarpour A, Ing T, & Ing S. (2006) Ocular adnexal asymmetry in models: a magazine photograph analysis. Canadian journal of ophthalmology. Journal canadien d'ophtalmologie, 41(2), 175-82. PMID: 16767204
Another week has gone by and some very interesting molbio blog posts have been aggregated to Researchblogging.org. Every week [see my opening post on the matter], I'll select some blog posts I consider particularly interesting in the field of molecular biology [see here to get a sense of the criteria that will be used], briefly describe them and list them here for you to check out.Note that I'm ... Read more »
SOLER, L. (2008) Effects of new amphotericin analogues on the scrapie isoform of the prion protein. Biochimica et Biophysica Acta (BBA) - General Subjects, 1780(10), 1162-1167. DOI: 10.1016/j.bbagen.2008.07.005
Stein, A., Pache, R., Bernadó, P., Pons, M., & Aloy, P. (2009) Dynamic interactions of proteins in complex networks: a more structured view. FEBS Journal, 276(19), 5390-5405. DOI: 10.1111/j.1742-4658.2009.07251.x
Earlier this year a piece of emotion research provoked a rather heated reaction in some quarters after it claimed to show that, contrary to the writings of Charles Darwin, Paul Ekman and others, facial emotional expressions are not universal after all. "Seriously, is this all that it takes to be published in Current Biology? Sheesh," was the verdict of one incredulous online commenter to Reddit (a more considered critical reaction is here). Now, with a diplomat's tact, David Matsumoto and collea........ Read more »
Matsumoto D, Willingham B, & Olide A. (2009) Sequential dynamics of culturally moderated facial expressions of emotion. Psychological science : a journal of the American Psychological Society / APS, 20(10), 1269-75. PMID: 19754526
Just occasionally a paper appears that makes me sit up with surprise, with a strong sense of "I did not see that one coming!". Just such a paper has appeared in pre-publication form in Nature Geoscience today - namely Schultz et al. (2009). This will undoubtedly represent the most surprising landslide paper of the year, and indeed for a few years in fact. I suspect that this paper will generate a fair amount of media interest in the next few days as well.The subject of the paper is the Slumgu........ Read more »
Schulz, W.H., Kean, J.W and Wang, G. (2009) Landslide movement in southwest Colorado triggered by atmospheric tides. Nature Geoscience. info:/10.1038/NGEO65
read more... Read more »
Stutzbach, D., Rejaie, R., Duffield, N., Sen, S., & Willinger, W. (2009) On Unbiased Sampling for Unstructured Peer-to-Peer Networks. IEEE/ACM Transactions on Networking, 17(2), 377-390. DOI: 10.1109/TNET.2008.2001730
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What can one say about an article that explores self in terms of stage theories (5 stages that match my own stage theoretic framework), has references to infantile autism and paranoia , and even references Carol Dweck’s entity vs incremental intelligence theories and George Lakoff’s ‘idealized cognitive model‘- all focuses of this [...]Rating: 0.0/10 (0 votes cast)
Related posts:Perosnality vs situation: Mischel’s cognitive person vari........ Read more »
You might have seen the recent study which found that the subtle smell of Windex (a brand of window cleaner) makes people more charitable. Time magazine, for one, carried a report - which got up the nose of a writer on the GetReligion blog. Here's the offending paragraph:
Nevertheless, both morality researchers and olfactory scientists agree that people do strongly associate physical cleanliness with purity of conscience. It is the notion at the heart of adages like “cleanlines........ Read more »
Schnall S, Benton J, & Harvey S. (2008) With a clean conscience: cleanliness reduces the severity of moral judgments. Psychological science : a journal of the American Psychological Society / APS, 19(12), 1219-22. PMID: 19121126
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