In many of the books about dinosaurs I read as a child, the evolution of horned dinosaurs (ceratopsians) looked pretty straightforward. Early, lanky forms such as Psittacosaurus were succeeded by a miniature precursor of later types—Protoceratops—before generating the array of large, spiky ceratopsid dinosaurs such as Triceratops and Styracosaurus. Yet, as more discoveries have been [...]... Read more »
Xu, X., Wang, K., Zhao, X., Sullivan, C., & Chen, S. (2010) A New Leptoceratopsid (Ornithischia: Ceratopsia) from the Upper Cretaceous of Shandong, China and Its Implications for Neoceratopsian Evolution. PLoS ONE, 5(11). DOI: 10.1371/journal.pone.0013835
by Nestor Lopez-Duran PhD in Child-Psych
Last week, while discussing a study that compared medication and psychotherapy for the treatment of teen depression, I mentioned how the current research suggests that the efficacy of Cognitive Behavioral Therapy (CBT) as treatment for depression in adolescents may vary significantly as a function of small variations between the different versions of CBT used by clinicians. [...]... Read more »
DeRosier, M., Swick, D., Davis, N., McMillen, J., & Matthews, R. (2010) The Efficacy of a Social Skills Group Intervention for Improving Social Behaviors in Children with High Functioning Autism Spectrum Disorders. Journal of Autism and Developmental Disorders. DOI: 10.1007/s10803-010-1128-2
One of the problems with depression as a disorder is that the symptoms never seem to manifest the same. To give you an idea of what I’m talking about, here are some of the DSM IV recognized symptoms of depression: 1) Insomnia or hypersomnia (not sleeping OR sleeping too much) 2) Having no appetite OR [...]... Read more »
Duric V, Banasr M, Licznerski P, Schmidt HD, Stockmeier CA, Simen AA, Newton SS, & Duman RS. (2010) A negative regulator of MAP kinase causes depressive behavior. Nature medicine, 16(11), 1328-32. PMID: 20953200
As my readers may recall, yesterday, I presented at the at theGlobal Obesity Summit 2010, Jackson, Mississippi.
My plenary talk on the Aetiological Management of Obesity was followed by a most interesting presentation by Matthias Tschöp from the University of Cincinnati, on novel peptide targets for obesity management.
Some readers may know of the considerable work that [...]... Read more »
Just how many sub-species of American martens are living in California and Oregon? Well, there may be one less than experts thought, according to a 2009 study published in Conservation Genetics. American martens (Martes americana) are slightly larger than a house cat and are carnivorous members of the Mustelid family. They live in boreal forests [...]... Read more »
Slauson, K., Zielinski, W., & Stone, K. (2008) Characterizing the molecular variation among American marten (Martes americana) subspecies from Oregon and California. Conservation Genetics, 10(5), 1337-1341. DOI: 10.1007/s10592-008-9626-x
The internet has changed fundamentally the way we communicate, the way we work, even the way we live our lives. That much is obvious to anyone who has ever shopped at Amazon, looked up a reference on PubMed, or gone social via Facebook. Those of us who’ve been using email and the wider world tools [...]Making the web work for academia is a post from: Sciencebase Science Blog
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Lyle R. Wetsch, & Kristen Pike. (2010) Marketing in a Web 2.0 world with a Web 1.0 mentality: the challenge of social web marketing in academic institutions. Int. J. Electronic Marketing and Retailing, 3(4), 398-414. info:/
Should a scientific paper be retracted because it is mistaken?
We’re not talking here about misconduct, or deliberate fraud. We’re talking about a result that is, for whatever reason, wrong.
At the Retraction Watch blog, Tom DeCoursey argues that papers that are wrong should be retracted from the scientific record. His main argument is that people waste a lot of time trying to reproduce results that later papers have been unable to confirm.
This may be a rather different view of retractio........ Read more »
As long there are cells and fascinated scientists, then there will always be unsolved mysteries. A recent paper helps clear up discrepancies in the actin literature, using a combination of killer microscopy and a systematic look at how one protein functions. So many cellular processes depend on a dynamic network of actin filaments, and there is a long list of proteins that associate with and regulate these networks. One of those proteins is called VASP and is found at the leading edge of m........ Read more »
Hansen, S., & Mullins, R. (2010) VASP is a processive actin polymerase that requires monomeric actin for barbed end association. The Journal of Cell Biology, 191(3), 571-584. DOI: 10.1083/jcb.201003014
Queen Bee is a term used in business psychology to refer to women in senior positions who boast about their own masculine attributes, whilst derogating their female subordinates and endorsing sexist stereotypes. According to articles in the popular press, the presence of Queen Bees is as much a cause of gender inequality at work as is the sexism shown by men. A new article by Belle Derks and her colleagues challenges this claim, arguing instead that sexist work-places are a breeding gr........ Read more »
Derks B, Ellemers N, van Laar C, & de Groot K. (2010) Do sexist organizational cultures create the Queen Bee?. The British journal of social psychology / the British Psychological Society. PMID: 20964948
Shyness and marriage: does shyness shape even established relationships? From Personality and Social Psychology Bulletin A key psychological question is to what extent a person’s personality determines the shape and quality of his or her social relationships. This research explores the specific impact of shyness on marital quality. It outlines how shy people reported more [...]... Read more »
Baker, L., & McNulty, J. (2010) Shyness and Marriage: Does Shyness Shape Even Established Relationships?. Personality and Social Psychology Bulletin, 36(5), 665-676. DOI: 10.1177/0146167210367489
There have been several critiques of geoengineering as a climate mitigation tool. Two of the most incisive, in my opinion, come from science and ethics.
The first is a 2007 paper in PNAS by Matthews and Caldeira showing that if we establish aerosol clouds or space reflectors while doing nothing to reduce carbon emissions, we run [...]... Read more »
Mary W. Silvera, Sibel Bargu, Susan L. Coale, Claudia R. Benitez-Nelson, Ana C. Garcia, Kathryn J. Roberts, Emily Sekula-Wood, Kenneth W. Bruland, and Kenneth H. Coale. (2010) Toxic diatoms and domoic acid in natural and iron enriched waters of the oceanic Pacific. Proceedings of the National Academy of Sciences. info:/10.1073/pnas.1006968107
A study online at the New England Journal of Medicine reports that DNMT3A mutations in acute myeloid leukemia are common and associated with poor outcome for intermediate-risk patients. Previously, our group had characterized the genomes of two patients with cytogenetically normal AML (AML1 and AML2). The first genome (AML1) was initially sequenced with Illumina short [...]... Read more »
Ley, T., Ding, L., Walter, M., McLellan, M., Lamprecht, T., Larson, D., Kandoth, C., Payton, J., Baty, J., Welch, J.... (2010) DNMT3A Mutations in Acute Myeloid Leukemia . New England Journal of Medicine, 2147483647. DOI: 10.1056/NEJMoa1005143
A recent meta-analysis in the British Journal of Medicine (BMJ) concludes that chondroitin, glucosamine and their combination do not reduce joint pain or have an impact on narrowing of joint space.... Read more »
Wandel S, Jüni P, Tendal B, Nüesch E, Villiger PM, Welton NJ, Reichenbach S, & Trelle S. (2010) Effects of glucosamine, chondroitin, or placebo in patients with osteoarthritis of hip or knee: network meta-analysis. BMJ (Clinical research ed.). PMID: 20847017
Everyone is familiar with Tetris. This simple, but addictive game has been studied quite a few times by researchers (see older post). A group from the University of Oxford investigated whether Tetris could be used as a “cognitive vaccine” against flashback development after trauma exposure. Flashbacks are one of the most persistent symptoms of Post Traumatic [...]... Read more »
Holmes, E., James, E., Kilford, E., & Deeprose, C. (2010) Key Steps in Developing a Cognitive Vaccine against Traumatic Flashbacks: Visuospatial Tetris versus Verbal Pub Quiz. PLoS ONE, 5(11). DOI: 10.1371/journal.pone.0013706
David Nutt and his colleagues at the newly formed Independent Scientific Committee on Drugs assessment harm of 19 common drugs. Alcohol was the worst overall and in harm to others. Was 4th behind heroin, crack and crystal. Amazingly new harm numbers bare "essentially no relation" to penalties in UK law (0.04 correlation). We've redone calculation excluding legal drugs and correlation still only 0.37 ... Read more »
Nutt DJ, King LA, Phillips LD, & on behalf of the Independent Scientific Committee on Drugs. (2010) Drug harms in the UK: a multicriteria decision analysis. Lancet, 376(9752), 1558-1565. PMID: 21036393
Reflections on and implications of the definitive identification of fatherless Boa constrictors.... Read more »
Booth, W., Johnson, D., Moore, S., Schal, C., & Vargo, E. (2010) Evidence for viable, non-clonal but fatherless Boa constrictors. Biology Letters. DOI: 10.1098/rsbl.2010.0793
When it comes to bad science in movies, there are two main camps; those who hate it, and those who hate it but will put up with it. Some say even horrid films can make the audience enthusiastic about science and make them want to learn. Then there are those who think bad science is [...]... Read more »
Barriga, C., Shapiro, M., & Fernandez, M. (2010) Science Information in Fictional Movies: Effects of Context and Gender. Science Communication, 32(1), 3-24. DOI: 10.1177/1075547009340338
Confronting Climate Contrarianism looks into the claims made climate contrarians and how they (mis)use the scientific literature.
In a textbook example of climate contrarians misusing the primary literature for an anti-scientific agenda, Robinson et al. (2007) are seemingly flippant about decades of research showing how humans have affected th........ Read more »
ETHERIDGE, D., PEARMAN, G., & FRASER, P. (1992) Changes in tropospheric methane between 1841 and 1978 from a high accumulation-rate Antarctic ice core. Tellus B, 44(4), 282-294. DOI: 10.1034/j.1600-0889.1992.t01-3-00006.x
Khalil, M., Rasmussen, R., & Moraes, F. (1993) Atmospheric Methane at Cape Meares: Analysis of a High-Resolution Data Base and Its Environmental Implications. Journal of Geophysical Research, 98(D8), 14753-14770. DOI: 10.1029/93JD01197
Khalil MA, Butenhoff CL, & Rasmussen RA. (2007) Atmospheric methane: trends and cycles of sources and sinks. Environmental science , 41(7), 2131-7. PMID: 17438753
Petit, J., Jouzel, J., Raynaud, D., Barkov, N., Barnola, J., Basile, I., Bender, M., Chappellaz, J., Davis, M., Delaygue, G.... (1999) Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature, 399(6735), 429-436. DOI: 10.1038/20859
This is an updated version of one of my favourite stories from last year, edited to include a sequel study that develops and expands on the first one.
You’ve just been in a horrific car crash. You’re unharmed but the vividness of the experience – the sight of a looming car, the crunching of metal, [...]... Read more »
Holmes, E., James, E., Coode-Bate, T., & Deeprose, C. (2009) Can Playing the Computer Game “Tetris” Reduce the Build-Up of Flashbacks for Trauma? A Proposal from Cognitive Science. PLoS ONE, 4(1). DOI: 10.1371/journal.pone.0004153
In nature from 28/10/2010 U.S. researchers report the development of the concentration of phosphorus over a period of 3-4 billion years (Planavsky NJ, Rouxel OJ, Bekker A, Lalonde SV, Konhauser KO, Reinhard CT, & Lyons TW (2010). The evolution of … Continue reading →... Read more »
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