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Posts

April 15, 2014

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2:00 PM | Phases of Mitosis Paul Andersen explains the importance of...
Phases of Mitosis Paul Andersen explains the importance of mitosis and details the major steps in the cell cycle. He explains the importance of Interphase, Prophase, Prometaphase, Metaphase, Anaphase, Telophases, and Cytokinesis. via Bozeman Science.
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2:00 PM | Animated Fitness Landscape: Its a Jack-In-The-Box for nerds!
Via John Wilkins and John Farrell: A Simple Visualization of How Species Evolve This is basically my dissertation, animated. LOL!! What are you looking at? Every pixel in that square is a genetic sequence. Some of those sequences confer a higher fitness advantage (the red colored peaks) or disadvantage (below the plane). The Blue color…
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2:00 PM | Easter Island
On Easter Sunday, 1722, Dutch explorer Jacob Roggeveen came across a small island in the Pacific Ocean with about 2000-3000 inhabitants. Considering the date, he named the Island “Easter Island”, but its local name is Rapa Nui. The Rapa Nui … Continue reading →
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2:00 PM | The perfect marriage of crystallography and mass spectrometry: PI3K
  Sorry for the cheesy title, but I’m getting married in a couple of weeks and it is all I can think about (oh, and science of course).  I have to admit that I chose a GREAT paper this time!: “Molecular determinants of PI3Kγ-mediated activation downstream of G-protein–coupled receptors” which was published last year in […]

Vadas O., Dbouk H.A., Shymanets A., Perisic O., Burke J.E., Abi Saab W.F., Khalil B.D., Harteneck C., Bresnick A.R. & Nurnberg B. & (2013). Molecular determinants of PI3K -mediated activation downstream of G-protein-coupled receptors (GPCRs), Proceedings of the National Academy of Sciences, 110 (47) 18862-18867. DOI:

Rommel C., Camps M. & Ji H. (2007). PI3Kδ and PI3Kγ: partners in crime in inflammation in rheumatoid arthritis and beyond?, Nature Reviews Immunology, 7 (3) 191-201. DOI:

Walker E.H., Perisic O., Ried C., Stephens L. & Williams R.L. Structural insights into phosphoinositide 3-kinase catalysis and signalling., Nature, PMID:

Citation
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1:30 PM | Hubble’s Stunning Monkey Head Nebula Astronomers using the...
Hubble’s Stunning Monkey Head Nebula Astronomers using the Hubble Space Telescope have captured infrared-light images of a churning region of star birth 6,400 light-years away. New from Hubblecast. The collection of images reveals a shadowy, dense knot of gas and dust sharply contrasted against a backdrop of brilliant glowing gas in the Monkey Head Nebula (also known as NGC 2174). The image demonstrates Hubble’s powerful infrared vision and offers a tantalizing hint of what […]
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1:30 PM | Speaking of Addiction Research
Addiction in animals involves very similar physiological changes in the brain as it does in humans. Prof Jentsch explains. Continue reading →
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1:00 PM | Probe To Fly Between Saturn And Its Rings On its final orbit In...
Probe To Fly Between Saturn And Its Rings On its final orbit In 2017, NASA’s Cassini probe will fly between the inner edge of the D ring and the upper atmosphere of the gas giant. It will also fly though an Enceladus plume in the next few years. via Video From Space.
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12:31 PM | Chi ha visto un rondine in cielo?
Se una rondine non fa primavera, cosa sarebbe una primavera senza rondini? L'evenienza non è così remota. Non tutti sanno infatti che rondini e balestrucci sono in declino nel nostro Paese. Secondo uno studio curato di recente dalla Lipu per il ministero dell’Ambiente, la rondine si trova in uno stato di conservazione “cattivo” e il balestruccio “inadeguato”. Quest’ultimo si è addirittura ridotto tra il 2000 e il 2012 di una […]
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12:30 PM | Major Life Extinctions Events Shows a computer simulation of our...
Major Life Extinctions Events Shows a computer simulation of our planet during its five major life extinctions events. via Habitability Lab.
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12:00 PM | Spatial and temporal functional changes in alpine summit vegetation are driven by increases in shrubs and graminoids
Classical approaches to investigating temporal and spatial changes in community composition offer only partial insight into the ecology that drives species distribution, community patterns and processes, whereas a functional approach can help to determine many of the underlying mechanisms that drive such patterns. In order to determine the mechanisms that drive changes in plant community […]
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12:00 PM | Explainer Spotlight - Maria Cortes Working at the New York Hall...
Explainer Spotlight - Maria Cortes Working at the New York Hall of Science has changed Maria’s life. She has always been a fan of science, and working here has helped her improve her communication skills. via Explainer TV. Tumblr: http://explainers.nysci.org Facebook: http://www.facebook.com/nysciexplainers Twitter: http://twitter.com/nysciexplainers
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12:00 PM | A Parasitic Amoeba Kills Cells by Eating Them
Amoebas are fascinating single-celled organisms. They typically move about by having their internal fluid (their cytoplasm) flow around and they eat their food by surrounding and digesting it with their body, in a process called phagocytosis. Some amoeba are parasites, such as Entamoeba histolytica, which can infect people and cause a potentially fatal diarrheal disease … Continue reading »
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12:00 PM | Tuesday Crustie: Hello, world!
World, meet Gramastacus lacus. Gramastacus lacus, world.This is an interesting new burrowing crayfish species. For one, it’s only the second in its genus. Second, it has an unusual way of walking on land. (I started my scientific career doing locomotion, so this fascinates me.)There is a unique forward movement via a series of rhythmic plunges. The crayfish raises the cephalothorax and both claws up with its legs and then moves forward overbalancing and plunges down and forward then […]
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11:31 AM | Four New Species of Deep-Sea Killer Sponge Discovered
Four new species of carnivorous sea sponge have been discovered in a place where ridiculous adaptations for sourcing food seem about as widespread as horrific ways to die – the deep sea. Following... -- Read more on ScientificAmerican.com
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11:30 AM | First asteroid with rings
Artist's rendition of Chariklo, Courtesy of ESOThe Kuiper asteroid belt is full of objects that orbit the sun out beyond Neptune. Some of these objects have orbits that cross the paths of the gas giants, but they don’t generally get any closer than that.This means that most of these objects are too far away for us to ever learn much about them if we can even detect them in the first place. But sometimes we get lucky. If one of these objects passes in front of (and consequently dims the […]
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11:09 AM | Il manuale per sopravvivere all'apocalisse
Sarà capitato anche a voi di guardare serie come The Walking Dead, o film come Io sono legenda, e di trovarvi a riflettere sulle vostre effettive chance di sopravvivere in un mondo devastato da qualche catastrofe. Che siano gli zombie, un virus letale, o un immancabile olocausto nucleare, i problemi essenziali restano più o meno gli stessi. Sareste in grado di cacciare il vostro cibo? O di coltivarlo? Sapreste accendere un fuoco senza accendino o cerini? Cosa fare in caso di […]
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11:00 AM | The Right Whale
  by sebamelchor. Explore more visuals like this one on the web’s largest information design community – Visually. Filed under: Featured Creature Tagged: life cycle, right whale, whale
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11:00 AM | TWiM #76: Genetic Biopixels and a Pathogenic Sweet Tooth
Hosts: Vincent Racaniello, Elio Schaechter, Michael Schmidt and Michele Swanson. Vincent, Elio, Michael, and Michele discuss the use of bacteria to build a genetic sensor for heavy metals, and how host sugars help enteric pathogens to expand after antibiotic treatment. Right click to download TWiM #76 (48 MB .mp3, 67 minutes). Subscribe to TWiM (free) on iTunes, Zune Marketplace, via...
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10:28 AM | OpenSciLogs – A Glimpse of the Future of Science Blogging
Guest blog post by Paige Brown, SciLogs.com blogging manager and Ph.D. student in the Manship School of Mass Communication, Louisiana State University.  Read more
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10:28 AM | OpenSciLogs – A Glimpse of the Future of Science Blogging
Guest blog post by Paige Brown, SciLogs.com blogging manager and Ph.D. student in the Manship School of Mass Communication, Louisiana State University.  Read more
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10:28 AM | OpenSciLogs – A Glimpse of the Future of Science Blogging
Guest blog post by Paige Brown, SciLogs.com blogging manager and Ph.D. student in the Manship School of Mass Communication, Louisiana State University.  Read more
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10:00 AM | Food security and Biofuels
A short extract of some of the main points raised during the course “Examining Issues around Global Food Security” by Dr Julie Flood from CABI at the Department of Continuing Education’s program of the University of Oxford on March 7th, 2014. The course aimed to highlight the issues of food security/insecurity, and particularly around growing […]
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9:00 AM | STEMing the tide, part III: A (new) 'modest proposal'
We have been writing about the push in this country to strengthen the STEM subjects in education, science, technology, engineering and math, because of their financial, career, and material role in society. This is being done explicitly because when money is tight, subjects like the arts, humanities, and social sciences don't pay direct benefits.  This can be seen as inexcusably crass, but in a tight job market and culture increasingly embedded in things technological, with weakening […]
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8:16 AM | Novel tools for reducing bias in Next Generation Sequencing of small RNAs
Tamas Dalmay, Professor of RNA Biology at the University of East Anglia (Norwich), has developed a robust, simple method of profiling small RNAs using next generation sequencing. Here he explains his novel HD adapters and why they are more reliable than existing commercial adapters.  Small RNAs (sRNAs) are key regulators of gene expression, and accurate[...]
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8:03 AM | Academia: Don’t believe the hope
Als kleiner Nachschlag zu meinem gestrigen Artikel über die Probleme in der akademischen Welt, insbesondere in Bezug auf Doktorandinnen und Postdocs, die möglicherweise die Hoffnung treibt, wenn sie nur genug Zeit und Energie investieren, es doch möglich sein sollte, einen Job im akademischen Betrieb zu ergattern. Die hier eingebunden Grafik (Klick darauf vergrößert sie) zeigt…
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7:35 AM | Book review: Understanding Evolution
I posted this on Panda’s Thumb, but I thought I would repeat it here. I occasionally get books for review unsolicited, and many of them are not worth noticing. However, Kostas Kampourakis’ Understanding Evolution is a wonderful resource for students of all … Continue reading →
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7:00 AM | The Man Who Injected Himself With Snake Venom
While most people are terrified of snakes, Bill Haast handled these legless reptiles every single day. After opening his famous Miami Serpentarium, Haast devoted his life to studying and milking snakes. Even more impressive, Haast injected himself with snake venom every day . . . a bizarre treatment that actually saved lives. The post The Man Who Injected Himself With Snake Venom appeared first on KnowledgeNuts.
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6:00 AM | PHOTO DU BoB-082
No summary available for this post.
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5:33 AM | Telefoni cellulari: mai prima dei 10 anni
L'uso, o meglio l'abuso, del cellulare tra i più giovani si sta trasformando in autentica dipendenza, che può danneggiare seriamente lo sviluppo psichico e sociale dei ragazzi, e comporta anche rischi per la salute, soprattutto nei bambini. L'allarme arriva dal convegno Sipps (Società Italiana di Pediatria Preventiva e Sociale)Fimpaggiorna 2014, organizzato negli scorsi giorni a Caserta per parlare del rapporto tra pediatria e ambiente, e più in particolare di […]
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5:32 AM | Cos'è il paradosso dell'obesità
Le persone sovrappeso o leggermente obese sopravvivono più facilmente a insufficienza renale, problemi cardiaci, diabete e disturbi coronarici rispetto a chi è considerato normopeso. Detta così, sembra un’eresia bella e buona. Si tratta del cosiddetto paradosso dell’obesità, come l’hanno definito Carl J. Lavie, cardiologo statunitense, e Kristin Loberg, che si basa su una serie di studi statistici che suggeriscono come le persone il cui indice di […]
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