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  • August 17, 2016
  • 03:41 PM
  • 247 views

Treacherous Astrocytes – a cause of Epilepsy?

by Vaibhav Jain in NEUROFANATIC

Scientists at the University of Bonn have unearthed the root cause for the development of temporal lobe epilepsy!  At an early stage, astrocytes are uncoupled from each other, this results in the extracellular accumulation of potassium ions and neurotransmitters, which cause hyper-excitability of the neurons. Astrocytes are connected by gap junction channels composed mainly of the gap junction […]... Read more »

Bedner P, Dupper A, Hüttmann K, Müller J, Herde MK, Dublin P, Deshpande T, Schramm J, Häussler U, Haas CA.... (2015) Astrocyte uncoupling as a cause of human temporal lobe epilepsy. Brain : a journal of neurology, 138(Pt 5), 1208-22. PMID: 25765328  

  • August 10, 2016
  • 08:55 AM
  • 551 views

Gimme Some Dihydrogen Monoxide

by Mark Lasbury in As Many Exceptions As Rules

One cannot over estimate the ways that water affects life on Earth. Beyond its chemical properties, some animals have evolved to substitute water for a rigid skeleton. Hydrostatic skeletons can be used for support, but also as water vascular systems that provide pressure for vascular transport and respiration. A recent review by William H. Kier sheds light on the interactions of different fibers and tissues in water based skeletons. Yet some plants can withstand a loss of 60% of their water, whe........ Read more »

Kier, W. (2012) The diversity of hydrostatic skeletons. Journal of Experimental Biology, 215(8), 1247-1257. DOI: 10.1242/jeb.056549  

  • July 13, 2016
  • 07:28 AM
  • 812 views

An equation for life

by gdw in FictionalFieldwork

Water churns. Earth moves. Molecules jostle and chemicals mix. Between heaven and hell, a young planet finds itself in full flux. Developing. Forming. Star stuff rains down and forged elements bubble up. Then it happens. It seems as if it’s just another chemical match-up, another reaction in the vast library of possibilities. But it would […]... Read more »

Scharf C, & Cronin L. (2016) Quantifying the origins of life on a planetary scale. Proceedings of the National Academy of Sciences of the United States of America. PMID: 27382156  

  • June 12, 2016
  • 10:35 PM
  • 770 views

Seeing Through the Skin

by Aurametrix team in Olfactics and Diagnostics

​Human skin emits light (albeit the glow is extremely weak) and a wide variety of small molecules that may be sometimes "sniffed" by dogs or even other humans. These chemicals tell a story about our health and wellness, things we eat and drink, touch and breathe. Mosquitoes use such emissions to assess our "attractiveness" from indicators such as Indoles (unpleasantly smelling but healthy "inner soil" biomarker) or carbon dioxide (amount of which correlates with the size of the person........ Read more »

Gao W, Emaminejad S, Nyein HY, Challa S, Chen K, Peck A, Fahad HM, Ota H, Shiraki H, Kiriya D.... (2016) Fully integrated wearable sensor arrays for multiplexed in situ perspiration analysis. Nature, 529(7587), 509-14. PMID: 26819044  

Yokota T, Zalar P, Kaltenbrunner M, Jinno H, Matsuhisa N, Kitanosako H, Tachibana Y, Yukita W, Koizumi M, & Someya T. (2016) Ultraflexible organic photonic skin. Science advances, 2(4). PMID: 27152354  

  • May 31, 2016
  • 11:30 PM
  • 734 views

42: the answer to life, the universe and everything (i.e., consciousness)

by Piter Boll in Earthling Nature

by Piter Kehoma Boll In his work  “The Hitchhiker’s Guide to the Galaxy”, Douglas Adams defined that the answer to life, the universe and everything is 42. Now a group of scientists measured glucose metabolism in brains in a resting … Continue reading →... Read more »

Stender, J., Mortensen, K., Thibaut, A., Darkner, S., Laureys, S., Gjedde, A., & Kupers, R. (2016) The Minimal Energetic Requirement of Sustained Awareness after Brain Injury. Current Biology. DOI: 10.1016/j.cub.2016.04.024  

  • April 6, 2016
  • 09:00 AM
  • 1,030 views

I’ll Fly Home—Or Not

by Mark Lasbury in As Many Exceptions As Rules

Why do some birds migrate and others don’t? It’s not that simple. The reason isn’t genetics, it isn’t necessarily food or weather either. There are birds that can allow their feet to go to one degree above freezing while keeping the rest of the body toasty – so they don’t need to migrate, yet other birds that are close to them genetically will fly thousands of miles. Other birds species only have a few of the adults migrate – who decides which ones make ........ Read more »

  • March 23, 2016
  • 07:25 AM
  • 1,016 views

Leaves Suck!

by Mark Lasbury in As Many Exceptions As Rules

People need the power of an elevator or our legs to rise high in a building, so how does water get from the roots of a tree to the very top leaves? Hint, it isn’t capillary action – even capillary tubes can move water only a few centimeters. The key is evaporation. But if water evaporates off plants, how do they survive during droughts? They have tricks to retain water, including developing big leaves and little leaves. Look carefully at some trees, you’ll find that they have t........ Read more »

  • March 16, 2016
  • 06:45 AM
  • 860 views

How Fast Is Fast

by Mark Lasbury in As Many Exceptions As Rules

What’s the fastest organism in the world? The cheetah s fast on land, and the white throated needle tail is fast in the air, but there are bacteria faster than these animals. It all depends on how you measure speed. The fastest? A beetle from down under – it’s confirmed by science!... Read more »

  • February 26, 2016
  • 10:00 AM
  • 1,070 views

Ο οίκος των Αχαιμενιδών

by Perikis Livas in Chilon

Το ερέθισμα των Περσικών πολέμων (502-449 π.Χ) και η ανέλπιστη νίκη των Ελλήνων, έβγαλαν την κυρίως Ελλάδα από τ&e........ Read more »

Chilon. (2016) Ο οίκος των Αχαιμενιδών. Chilon . info:/

  • February 18, 2016
  • 10:00 AM
  • 1,043 views

Η Ιερά Εξέταση

by Perikis Livas in Chilon

Η Ιερά Εξέταση ήταν Εκκλησιαστικός θεσμός δικαστικού χαρακτήρα της Ρωμαιοκαθολικής Εκκλησί&al........ Read more »

Chilon-Pitheys. (2016) Η Ιερά Εξέταση. Chilon . info:/

  • February 5, 2016
  • 10:00 AM
  • 857 views

Ανδρέας Βεσάλιος………..ο ιδρυτής της σύγχρονης α&

by Perikis Livas in Chilon

Ο Ανδρέας Βεσάλιος (Andreas Vesalius, γνωστός και ως Βεζάλιος ή Βεζάλ) γεννήθηκε την 31 Δεκεμβρίου 1514, ή νωρίς το πρ&ome........ Read more »

Πυθεύς. (2016) Ανδρέας Βεσάλιος……….ο ιδρυτής της σύγχρονης ανατομίας. Chilon . info:/

  • January 28, 2016
  • 05:26 PM
  • 717 views

WATCH: Leaf Cutter Ants Hard At Work

by Jenny Ludmer in Rooster's Report

Able to strip a tree in mere hours, leaf cutter ants are both marvels of nature and formidable pests. And that’s why researchers at University of Oregon decided to take a closer look. Armed with several cameras, the team captured never-before seen footage proving that these critters have an amazing set of skills.... Read more »

  • December 16, 2015
  • 08:50 AM
  • 940 views

A Gift Worth Its Weight In Gold

by Mark Lasbury in As Many Exceptions As Rules

Gold is not considered a dietary micronutrient, and is the one of the most inert metals. But this is not to say it has no role in living systems; in fact, this metal is a veritable gold mine of biology. New research has led to a greater understanding of how gold can down-regulate inflammatory processes and gold complexes are being used in cancer and infectious disease treatments.... Read more »

  • December 9, 2015
  • 08:05 AM
  • 1,306 views

Snow Saves Lives

by Mark Lasbury in As Many Exceptions As Rules

It may be warm for December, but the snow is coming. Recent studies are showing the unique ways that organisms depend on and use snow in order to survive. An antifreeze protein from snow fleas may lengthen the time that organs can be stored for transplant. More amazing, reindeer use the UV rays that bounce of the snow to see predators – they are the only mammals that can see in the UV range.... Read more »

Hogg C, Neveu M, Stokkan KA, Folkow L, Cottrill P, Douglas R, Hunt DM, & Jeffery G. (2011) Arctic reindeer extend their visual range into the ultraviolet. The Journal of experimental biology, 214(Pt 12), 2014-9. PMID: 21613517  

Kondo H, Hanada Y, Sugimoto H, Hoshino T, Garnham CP, Davies PL, & Tsuda S. (2012) Ice-binding site of snow mold fungus antifreeze protein deviates from structural regularity and high conservation. Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9360-5. PMID: 22645341  

  • November 11, 2015
  • 08:40 AM
  • 898 views

Where Do All Those Leaves Come From?!

by Mark Lasbury in The 'Scope

As you grab your rake or leaf-blower this fall, you might wonder how it is possible for trees to make so many leaves. Learn where they all came from.... Read more »

Pijpers, J., Winkler, M., Surendranath, Y., Buonassisi, T., & Nocera, D. (2011) Light-induced water oxidation at silicon electrodes functionalized with a cobalt oxygen-evolving catalyst. Proceedings of the National Academy of Sciences, 108(25), 10056-10061. DOI: 10.1073/pnas.1106545108  

  • November 11, 2015
  • 06:14 AM
  • 160 views

Shining a Light on Astrocytes!

by Vaibhav Jain in NEUROFANATIC

Astrocytes are known to display dynamic intracellular Ca2 signals, and it has recently been shown that astrocytes rapidly sense and regulate single synapses. Researchers could able to study astrocytic network using optical, pharmacological and genetic tools. Astrocytes in the hippocampus, found to be regulating  neuronal conversations. Here, the flashes of light indicate changes in calcium levels within the […]... Read more »

Haustein MD, Kracun S, Lu XH, Shih T, Jackson-Weaver O, Tong X, Xu J, Yang XW, O'Dell TJ, Marvin JS.... (2014) Conditions and constraints for astrocyte calcium signaling in the hippocampal mossy fiber pathway. Neuron, 82(2), 413-29. PMID: 24742463  

  • November 4, 2015
  • 08:10 AM
  • 1,179 views

Breaking the Size Barrier – Giant Bacteria, part 1

by Mark Lasbury in As Many Exceptions As Rules

The rules of biology say that a bacterium must be small because it doesn’t have dedicated systems for moving molecules around inside the cell and diffusion can only move them so far, so fast. Well, here’s a bacterium that breaks the rule – it’s as big as 3 million other bacteria lumped together! To live this way, this bacterium stores sulfur and nitrogen in amounts that would be enough to kill your cells – everybody has their own rules.... Read more »

Schulz, H., & Jørgensen, B. (2001) Big Bacteria. Annual Review of Microbiology, 55(1), 105-137. DOI: 10.1146/annurev.micro.55.1.105  

Girnth, A., Grünke, S., Lichtschlag, A., Felden, J., Knittel, K., Wenzhöfer, F., de Beer, D., & Boetius, A. (2011) A novel, mat-forming Thiomargarita population associated with a sulfidic fluid flow from a deep-sea mud volcano. Environmental Microbiology, 13(2), 495-505. DOI: 10.1111/j.1462-2920.2010.02353.x  

  • August 20, 2015
  • 02:09 PM
  • 1,091 views

Falling with Style: Controlled Gliding in Spiders

by Melissa Chernick in Science Storiented

Sometimes I read a paper because the methods catch my eye. I can just imagine some scientists sitting around a table with a beer and saying, “I wonder what would happen if we just dropped a bunch of spiders from the tops of trees.” An article published online yesterday did just that.Barro Colorado Island is a man-made island is located in Gatun Lake, created by filling of the Panama Canal. It is covered in tropical rainforests, and its inhabitants have been studied extensively. It would be a........ Read more »

Stephen P. Yanoviak, Yonatan Munk, & Robert Dudley. (2015) Arachnid aloft: directed aerial descent in neotropical canopy spiders. J. R. Soc. Interface. info:/10.1098/rsif.2015.0534

  • May 7, 2015
  • 06:41 AM
  • 1,352 views

Missing link in the evolution of complex cells discovered

by Perikis Livas in Chilon

In a new study, published in Nature this week, a research team led from Uppsala University in Sweden presents the discovery of a new microbe that represents a missing link in the evolution of complex life. The study provides a new understanding of how, billions of years ago, the complex cell types that comprise plants, fungi, but also animals and humans, evolved from simple microbes.



Νεα μελέτη, η οποία &epsi........ Read more »

Spang, A., Saw, J., Jørgensen, S., Zaremba-Niedzwiedzka, K., Martijn, J., Lind, A., van Eijk, R., Schleper, C., Guy, L., & Ettema, T. (2015) Complex archaea that bridge the gap between prokaryotes and eukaryotes. Nature. DOI: 10.1038/nature14447  

  • April 29, 2015
  • 06:01 PM
  • 1,326 views

Robot Discovers Two New Neighbors

by Perikis Livas in Chilon

Maunakea, Hawaii – A team of astronomers using ground-based telescopes in Hawaii, California, and Arizona recently discovered a planetary system orbiting a nearby star that is only 54 light-years away. All three planets orbit their star at a distance closer than Mercury orbits the sun, completing their orbits in just 5, 15, and 24 days. The paper is being published in the Astrophysical Journal.... Read more »

Benjamin J. Fulton, Lauren M. Weiss, Evan Sinukoff, Howard Isaacson, Andrew W. Howard, Geoffrey W. Marcy, Gregory W. Henry, Bradford P. Holden, & Robert I. Kibrick. (2015) Three Super-Earths Orbiting HD 7924. Astrophysical Journal. arXiv: 1504.06629v1

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