Post List

  • November 2, 2014
  • 10:12 PM
  • 78 views

Settling velocity and grain shape of maerl

by Siddhi Joshi in Seabed Habitats

Our recent study on maerl sediment dynamics has found that the settling velocity of maerl is primarily governed by the grain shape properties of maerl. A grain shape parameter known as the convexity has been linked to the settling velocity via the Ferguson and Church model (Ferguson and Church, 2004). Due to the grain shape of maerl and roughness, it experiences a greater drag than the natural quartz grain. Detailed measurements of maërl grain shape using microscopic image analysis confirm ........ Read more »

Ferguson, R., & Church, M. (2004) A Simple Universal Equation for Grain Settling Velocity. Journal of Sedimentary Research, 74(6), 933-937. DOI: 10.1306/051204740933  

Joshi, S., Duffy, G., & Brown, C. (2014) Settling Velocity and Grain Shape of Maerl Biogenic Gravel. Journal of Sedimentary Research, 84(8), 718-727. DOI: 10.2110/jsr.2014.51  

  • November 2, 2014
  • 08:27 PM
  • 95 views

Decision Making - Monkey See, Monkey Do (But Not Like a Human)

by Mark Rubin in The University of Newcastle's School of Psychology Newsline

A great deal is known about how we make simple decisions, right down to the way neurons in our brains connect to translate the things we sense into the responses we make. Some of the most important neural studies of decision-making have used monkeys as an analogue for humans. The broader scope of methodology which can be used with primates has provided information far beyond that obtainable from human experimentation. However, conclusions based on animal experiments may not always translate to h........ Read more »

Cassey, P., Heathcote, A., & Brown, S. (2014) Brain and Behavior in Decision-Making. PLoS Computational Biology, 10(7), 1-7. DOI: 10.1371/journal.pcbi.1003700  

  • November 2, 2014
  • 02:11 PM
  • 107 views

Boosting Crop Yields via Genetics

by Gabriel in Lunatic Laboratories

Genetic engineering techniques offers many different promises, some of which will obviously come sooner than others. One of those promises was a possible end to famine, while most famine in the world today is in developing countries, that could spread as population increases. To that end scientists have announced a new way to dramatically increase crop yields by improving upon Mother Nature's offerings. The team has discovered a set of gene variations that can boost fruit production in the tomat........ Read more »

Z. Lippman et al. (2014) Optimization of crop productivity in tomato using induced mutations in the florigen pathway. Nature Genetics. info:/10.1038/ng.3131

  • November 2, 2014
  • 12:17 PM
  • 89 views

What is recovery?

by DJMac in Recovery Review

A stumbling block to moving forward with recovery in the UK is lack of agreement about what recovery actually is. Highly specific definitions (e.g. recovery = abstinence) can lead to exclusion and fierce disagreement while non-specific definitions are too woolly to measure in services which are being asked to deliver measurable outcomes. Professionals and recovering people Professionals are [...]
The post What is recovery? appeared first on Recovery Review.
... Read more »

Kaskutas LA, Borkman TJ, Laudet A, Ritter LA, Witbrodt J, Subbaraman MS, Stunz A, & Bond J. (2014) Elements that define recovery: the experiential perspective. Journal of studies on alcohol and drugs, 75(6), 999-1010. PMID: 25343658  

  • November 2, 2014
  • 09:54 AM
  • 105 views

Understanding the past to know more about our future: study finds spikes in carbon dioxide levels correlated with end of last glacial cycle

by Jonathan Trinastic in Goodnight Earth

We've always thought that the last glacial cycle correlated with a slow rise in CO2, however new data from Antarctica shows quick spikes in CO2 and methane lasting under 100 years. This data could provide new insights into the carbon cycles useful for understanding today's CO2 increases.... Read more »

Marcott, S., Bauska, T., Buizert, C., Steig, E., Rosen, J., Cuffey, K., Fudge, T., Severinghaus, J., Ahn, J., Kalk, M.... (2014) Centennial-scale changes in the global carbon cycle during the last deglaciation. Nature, 514(7524), 616-619. DOI: 10.1038/nature13799  

  • November 2, 2014
  • 09:47 AM
  • 109 views

The heritability of fears

by EE Giorgi in CHIMERAS

Cyborg © EEGAs many of you know, one of my favorite topics here on the blog is epigenetic inheritance, i.e. the mechanisms that regulate changes in gene expression that can be passed from one generation to the next. Epigenetics has revolutionized the way we look at genetic inheritance: Darwin had taught us that the only way the environment can shape the genome of a species is through natural selection. While this is certainly still true, today we also know that:1) Most of the mutations we see i........ Read more »

  • November 1, 2014
  • 11:55 PM
  • 117 views

From realism to interfaces and rationality in evolutionary games

by Artem Kaznatcheev in Evolutionary Games Group

As I was preparing some reading assignments, I realized that I don’t have a single resource available that covers the main ideas of the interface theory of perception, objective versus subjective rationality, and their relationship to evolutionary game theory. I wanted to correct this oversight and use it as opportunity to comment on the philosophy […]... Read more »

Kaznatcheev, A., Montrey, M., & Shultz, T.R. (2014) Evolving useful delusions: Subjectively rational selfishness leads to objectively irrational cooperation. Proceedings of the 36th annual conference of the cognitive science societ. arXiv: 1405.0041v1

  • November 1, 2014
  • 01:14 PM
  • 106 views

Where HIV hides

by Gabriel in Lunatic Laboratories

HIV is hard to get rid of,not because it primarily resides in the blood, but because of where it hides when antiretrovirals drop HIV levels. So the real question is where does HIV hide? Unfortunately those antiretroviral drugs can usually control the virus, but can’t completely eliminate it. So any strategy to eradicate HIV from the body has to take into account not only the main group of immune cells the virus targets, called CD4 or helper T cells, but other infected cells as well.... Read more »

  • November 1, 2014
  • 11:09 AM
  • 119 views

Paranormal Blindness

by Rodney Steadman in Gravity's Pull

Inattentional blindness and low working memory capacity may influence paranormal belief/experience.... Read more »

Richards A, Hellgren M, & French C. (2014) Inattentional blindness, absorption, working memory capacity, and paranormal belief. Psychology of Consciousness: Theory, Research, and Practice., 1(1), 60-69. DOI: 10.1037/css0000003  

  • November 1, 2014
  • 06:07 AM
  • 126 views

Early childhood atopy and autism risk

by Paul Whiteley in Questioning Answers

De profundis clamo ad te, domineRegular readers will probably have heard something like this before so I'm sorry if I'm repeating myself: "The presence of any atopic disease in early childhood increased the risk of developing ADHD [attention deficit hyperactivity disorder]... and ASD [autism spectrum disorder]... in later life".So said Mu-Hong Chen and colleagues [1] with yet another 'big data' paper coming out of Taiwan.There is little point in me turning this research into some ........ Read more »

Chen MH, Su TP, Chen YS, Hsu JW, Huang KL, Chang WH, Chen TJ, Pan TL, & Bai YM. (2014) Is atopy in early childhood a risk factor for ADHD and ASD? A longitudinal study. Journal of psychosomatic research, 77(4), 316-21. PMID: 25280829  

  • November 1, 2014
  • 05:42 AM
  • 114 views

Strange, Vampire-like Deer Still Alive in Afghanistan

by beredim in Strange Animals

Musk deers use their distinctive fungs tusks during the rutting season  to compete with other males.Photo shows a Siberian musk deer, a similar and closelyrelated species.Credit: Julie Larsen Maher © WCSIt's been more than 60 years after the last confirmed sighting of the Kashmir musk deer in Afganistan, a strange deer with vampire-like fangs native to Afghanistan, Republic of India, and Pakistan.Now, a new study appearing in the latest edition of the journal Oryx reveals that the Kas........ Read more »

  • October 31, 2014
  • 04:05 PM
  • 124 views

New Genetic Editing Technique Offers Novel Treatment of Defects

by Gabriel in Lunatic Laboratories

The promises of genetic modifications are endless, longer life, better health, cures for genetic based diseases that would otherwise cause an unimaginable amount of suffering all wiped out. We’ve come a long way in genetic alteration thanks, in part, to the ever faster moving pace of science. While genetic modification is the thing of horror movies, it also can change the world in ways we cannot even imagine — unfortunately getting genome-editing proteins into cells, where they need to be t........ Read more »

  • October 31, 2014
  • 12:05 PM
  • 127 views

I Need How Many Calories? Caloric Needs in Bulimia Nervosa Patients

by Tetyana in Science of Eating Disorders


In the 1980s, a few studies came out suggesting that patients with bulimia nervosa (BN) require fewer calories for weight maintenance than anorexia nervosa patients (e.g., Newman, Halmi, & Marchi, 1987) and healthy female controls (e.g., Gwirtsman et al., 1989).
Gwirtsman et al. (1989), after finding that patients with bulimia nervosa required few calories for weight maintenance than healthy volunteers, had these suggestions for clinicians:
When bulimic patient........ Read more »

de Zwaan, M., Aslam, Z., & Mitchell, J.E. (2002) Research on energy expenditure in individuals with eating disorders: a review. International Journal of Eating Disorders, 31(4), 361-9. PMID: 11948641  

Gwirtsman, H.E., Kaye, W.H., Obarzanek, E., George, D.T., Jimerson, D.C., & Ebert, M.H. (1989) Decreased caloric intake in normal-weight patients with bulimia: comparison with female volunteers. American Journal of Clinical Nutrition, 49(1), 86-92. PMID: 2912015  

  • October 31, 2014
  • 11:48 AM
  • 118 views

Halloween Special: The Drosophila Halloween Genes

by Bethany Christmann in Fly on the Wall

In the movies, spooks and phantoms are often undead humans with unfinished business. But would you be afraid of a ghostly fruit fly? In 1995, fruit fly researchers Christiane Nüsslein-Volhard and Eric Wieschaus were awarded a Nobel Prize for their research on development. They were interested in understanding how a fertilized egg develops into a complex […]... Read more »

  • October 31, 2014
  • 11:44 AM
  • 116 views

Tissue-specific genome editing in Ciona embryos by CRISPR/Cas9

by Shashank Gandhi in the Node

Researchers have always been interested in tissue-specific loss of function to probe the role of specific genes in embryonic development, cell physiology and disease conditions. Migration of lateral plate primordial germ cells in zebrafish, border cell migration during oogenesis in drosophila, interaction of T-cells with their target, and numerous other cases have continued to give […]... Read more »

Stolfi, A., Gandhi, S., Salek, F., & Christiaen, L. (2014) Tissue-specific genome editing in Ciona embryos by CRISPR/Cas9. Development, 141(21), 4115-4120. DOI: 10.1242/dev.114488  

  • October 31, 2014
  • 11:15 AM
  • 116 views

Canonical circuits in neuroscience

by neuroecology in Neuroecology

Gary Marcus, Adam Marblestone, and Thomas Dean have a nice perspective piece in Science this week on the atoms of neural computation (gated): One hypothesis is that cortical neurons form a single, massively repeated “canonical” circuit, characterized as a kind of a … Continue reading →... Read more »

  • October 31, 2014
  • 11:14 AM
  • 92 views

NS1: It’s all about location, location, location

by Clay Clark in Biochem Blogs

  Viruses are minimalists when it comes to genomic data. This light packing of genetic information requires that every protein the virus codes for needs to be as versatile as possible. The flavivirus genus is no exception to this; its genome encodes for three structural proteins (capsid, membrane, and envelope) and seven nonstructural proteins (NS1, […]... Read more »

  • October 31, 2014
  • 07:02 AM
  • 97 views

Male? Don’t watch comedy videos prior to trial presentations…

by Doug Keene in The Jury Room

Many have written about men being over-confident in comparison to women–although all of us may be more confident in our abilities than we generally should be. Prior research has shown us that men are more confident than women, and that happy people tend to view themselves more positively and happy people actually often perform better […]

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Male body shame and aggression against women (“rape proclivity”........ Read more »

Ifcher, J., & Zarghamee, H. (2014) Affect and overconfidence: A laboratory investigation. Journal of Neuroscience, Psychology, and Economics, 7(3), 125-150. DOI: 10.1037/npe0000022  

  • October 31, 2014
  • 06:37 AM
  • 100 views

Mind Blowing Brain Cases: The Man With A Hole In His Head

by Elisabeth Buhl Thubron in United Academics

In this series neuroscientist Elisabeth Buhl Thubron takes a closer look at intriguing brain cases that revolutionised the field. Part I: The Man With A Whole In His Head... Read more »

Harlow JM. (1999) Passage of an iron rod through the head. 1848. The Journal of neuropsychiatry and clinical neurosciences, 11(2), 281-3. PMID: 10334003  

Ratiu P, Talos IF, Haker S, Lieberman D, & Everett P. (2004) The tale of Phineas Gage, digitally remastered. Journal of neurotrauma, 21(5), 637-43. PMID: 15165371  

Van Horn JD, Irimia A, Torgerson CM, Chambers MC, Kikinis R, & Toga AW. (2012) Mapping connectivity damage in the case of Phineas Gage. PloS one, 7(5). PMID: 22616011  

  • October 31, 2014
  • 06:22 AM
  • 70 views

TSC1 is required for iNKT cell maturation and function

by Lizzie Perdeaux in BHD Research Blog

Invariant Natural Killer T (iNKT) cell development is highly regulated, starting at stage 0, where DP thermocytes become committed to the iNKT cell lineage, and ending as fully mature stage 3 iNKT cells, which are capable of illiciting an immune … Continue reading →... Read more »

Wu J, Yang J, Yang K, Wang H, Gorentla B, Shin J, Qiu Y, Que LG, Foster WM, Xia Z.... (2014) iNKT cells require TSC1 for terminal maturation and effector lineage fate decisions. The Journal of clinical investigation, 124(4), 1685-98. PMID: 24614103  

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