Posts

September 22, 2014

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10:03 AM | Les deux neurones de Sarkozy, une nouvelle mesure de l’intelligence?
"Est-ce que vous me prêtez deux neurones d'intelligence?" C'est LA phrase à retenir, sur la plan neuroscientifique, de l'interview de Nicolas Sarkozy hier soir sur France 2. C'est même tellement beau qu'on se la réécoute encore une fois. Voir la vidéo Eh oui, deux neurones, deux neurones d'intelligence. On ne va pas loin avec cela. Ce qui est étonnant dans la phrase de Sarkozy, c'est cette idée que l'intelligence se compte en neurones. Que […]

September 21, 2014

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11:49 PM | RNA-directed DNA methylation and RNA-mediated events
Many colleagues and most of my antagonists seem to be unwilling to accept the fact that RNA-directed DNA methylation links the epigenetic landscape to the physical landscape of DNA in the organized genomes of species from microbes to man. Lack...Read more
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7:57 PM | Miracles are not miracles to evolutionary theorists
Science 19 September 2014: Vol. 345 no. 6203 pp. 1443-1445 DOI: 10.1126/science.345.6203.1443 No miracles Excerpt: “There’s a reason these crows make tools and other birds don’t,” he says. “It’s not a miracle.” THAT SENTENCE, along with the even shorter phrase...Read more
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4:50 PM | Mathematical model: microRNA and epigenetic regulation
Hypothesis & Theory ARTICLE Front. Genet. | doi: 10.3389/fgene.2014.00345 Interplay of microRNA and epigenetic regulation in the human regulatory network. Excerpt: “…a detailed model of the epigenetic interaction and its relations with the cellular environment would be required, and this...Read more
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2:45 AM | Seemingly futile cycles are not thermodynamically futile
Scientists discover an on/off switch for aging cells The switch controls the growth of telomeres, the timekeepers of cells September 19, 2014 Excerpt: Understanding how this “off” switch can be manipulated–thereby slowing down the telomere shortening process–could lead to treatments...Read more
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1:21 AM | Do bacterial proteins evolve?
Among the phrases most likely to get my attention but least likely to get the attention of an evolutionary theorist is “bacterial proteins evolve.” See for example (with my emphasis): To provide insight into how bacterial proteins evolve to adapt to...Read more
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12:59 AM | “Kardashians” in science
On “Kardashians” in science and the general relationship between achievement and fame Posted on September 19, 2014 by Lascap Excerpt Ultimately, it is all about the relevance of one’s contribution. But trying to discredit an increasingly important form of academic...Read more

September 20, 2014

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3:48 PM | Probable changes in connectivity
Table of Contents: Nature Reviews Neuroscience October 2014 Vol 15 No 10 Excerpt from: Research Highlights: Learning and memory: Uncoupling memory traces “The emotional valence of a memory can be changed, and this probably involves a change in the connectivity...Read more

September 19, 2014

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7:05 PM | New technique used in report of atomic-level ecological adaptations
Archaerhodopsin variants with enhanced voltage-sensitive fluorescence in mammalian and Caenorhabditis elegans neurons Directed evolution of a far-red fluorescent rhodopsin reported as: New technique uses a genetic tool and light to view and map neuronal circuits Excerpt 1): “This [directed evolution]...Read more
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4:52 PM | Can epigenetic inheritance occur without concurrent changes in morphology AND behavior?
Heritable Histones Scientists show how roundworm daughter cells remember the histone modification patterns of their parents. By Ruth Williams | September 18, 2014 My comment: Strike three, your theories are out. Re: Strike 1) Combating Evolution to Fight Disease Strike...Read more
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2:15 PM | Memory of repression and memory of behavior (2)
“Mutations that become so common that they affect more than 1% of a population are called polymorphisms (for example, the human blood types A, B, AB, and O).“ The claim that human blood types are mutations should be supported with...Read more
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12:15 PM | Fluffy Friday – Fluffy Gets Fluffier
I wasn’t sure when to post about this, but I’m much too excited to wait. The Fluffy Sciences family is growing by one this month, as I prepare to adopt this little lady. I will post more about her in … Continue reading →
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9:03 AM | Ecosse : l’illusion de liberté
Voulez-vous être indépendant? - Non. Vous avez pourtant la liberté de choisir l'indépendance... - Non. Voilà en quelques lignes l'histoire du référendum sur l'indépendance de l'Ecosse, qui s'est soldé ce matin par un libre choix de rester dans le Royaume Uni. Pourquoi est-ce habilement  joué de la part du gouvernement britannique et de son premier Ministre David Cameron? Tout simplement parce qu'en laissant à […]
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12:47 AM | Memory of repression and memory of behavior
H3K27me and PRC2 transmit a memory of repression across generations and during development Reported as: How epigenetic memory is passed through generations: Sperm and eggs transmit memory of gene repression to embryos Date: September 18, 2014 Excerpt: “There are dozens...Read more

September 18, 2014

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11:51 PM | Are dolphins cleverer than dogs? (BBC Earth)
I penned an article titled Are Dolphins Cleverer than Dogs for the newly launched BBC site, BBC Earth. There are some great articles on this site – it’s worth checking out!
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11:05 PM | Quantum physics meets Evolutionary Psychology News
Capturing the motion of a single molecule in real time as it oscillates from one quantum state to another September 18, 2014 Excerpt: “It also moves researchers a step closer to viewing the molecular world in action — being able...Read more
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4:33 PM | Do mutations and natural selection lead to neuronal organization?
Neuronal organization of olfactory bulb circuits Excerpt 1): “…new neuronal types and connections are often not taken into account in building a model of the olfactory bulb network. We are concerned with this trend of omission as it may hinder...Read more
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3:09 PM | Nutrient-dependent pheromone-controlled exercise-induced physiques
How to explain exercise-induced phenotype from molecular data: rethink and reconstruction based on AMPK and mTOR signaling Excerpt: “…cellular and molecular phenotype for exercise capacity is always acquired from regular exercise or muscle contraction; it is absurd to use drug...Read more
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2:54 PM | Leafhoppers Locate Lovers Through Good Vibrations
It can be hard to find a mate when you’re less than 5 mm long. Luckily, leafhoppers can pick up on each other’s vibes. Male and female leafhoppers perform vibratory duets to identify, locate, and court each other. Read about how they do it in my latest Zoologic post: Lustful Leafhoppers Locate Each Other Through Good Vibrations .
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8:58 AM | Watching and waiting for more retractions
Brain Genetics Paper Retracted A study that identified genes linked to communication between different areas of the brain has been retracted by its authors because of statistical flaws. By Anna Azvolinsky | September 4, 2014 Excerpt: “This retraction raises the...Read more
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2:12 AM | RNA-mediated ecological adaptations of teeth
Counting fish teeth reveals DNA changes behind rapid evolution By Robert Sanders, Media Relations | September 17, 2014 Excerpt: “This is one of the first cases where we find that the rules found for traits lost apply as well to...Read more
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12:35 AM | Dog Science in September: Springing and Falling
Depending on your location, your days are either brightening and warming up, or shortening and cooling off. Wherever you are, we hope you enjoy this collection of canine science that we took note of over the last two weeks, Storified in the one spot for easy reference:[View the story "Do You Believe in Dog? [01-15 September 2014]" on Storify]© Do You Believe in Dog? 2014

September 17, 2014

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2:54 PM | Totally meaningful lists and stuff
Science magazine, ‘inspired’ by Neil Hall’s (borderline?) offensive ‘Kardashian-index’ paper (which has been torn apart by far better people than me, so I’ll just direct you here), has just published a list of ‘The Top 50 Science Stars of Twitter’. Their methods seem strangely flawed for what is considered one of the most prestigious scientific […]
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8:42 AM | Dans la tête à Thévenoud, un problème au cerveau?
A quarante ans, ne jamais avoir déclaré ses revenus ni payé son loyer, c'est désormais possible. Thomas Thévenoud l'a prouvé. Rien ne sera plus comme avant. Recalés, tous les cabinets d'optimisation fiscale. Ridiculisés, les habiles conseillers en patrimoine. Thévenoud révolutionne l'art de la fraude. Avec lui il n'y a qu'un seul mot d'ordre : ne rien dire. Le fantôme du fisc, c'est lui. Pour se rafraîchir la […]

September 16, 2014

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11:10 PM | Pseudoscientific nonsense about face and body recognition
It’s Thanks to Evolution That No Two Faces Are Alike, Study Finds Excerpt: “….highly social insects rely on their distinctive face and body patterns to recognize each other…” See: RNA and dynamic nuclear organization My comment: The difference between RNA-mediated events...Read more
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5:49 PM | Assistance Dogs International (Or does the “I” Stand for Inspiring?)
If you’re feeling a tad disheartened by the news, or maybe the view in the mirror when you went to buy new pants (okay, that’s probably just my problem), I have a suggestion: Go out of your way to go to the Assistance Dogs International Conference, wherever it might be held in the years to […]
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4:06 PM | A molecular visualizer of worthwhile molecular biology
Ruben Gonzalez Jr.: Molecular Visualizer Associate Professor and Director of Graduate Studies, Department of Chemistry, Columbia University. Age 42 By Jef Akst | September 1, 2014 Excerpt: “Much of his group’s current work involves extending discoveries about translation in E....Read more
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2:00 PM | RNA-mediated species diversification from microbes to primates
Mycobacteriophage-drived diversification of Mycobacterium abscessus Biology Direct (15 September 2014) OPEN ACCESS Excerpt (with my emphasis): “Widespread occurrence of phage sequences in almost all studied M. abscessus complex isolates suggests that the rate of prophage invasion is faster than the...Read more
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3:57 AM | RNA-mediated events found everywhere
Transcriptome-wide Mapping Reveals Widespread Dynamic-Regulated Pseudouridylation of ncRNA and mRNA Related articles Related blog posts on this site Reported as Scientists discover RNA modifications in some unexpected places Excerpt 1): “…there are multiple types of RNA, three of which—messenger RNA...Read more
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1:50 AM | Reseachers think copy number variation is genetically determined
Researchers develop new type of genetic test for identifying developmental disorders Excerpt: “…the team sought to find specific genes responsible for certain development disorders, and they appear to have done just that.” My comment: The genes cannot be responsible for...Read more
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