A brief gallivant about the marketplace of ideas.

Category: Science

Science — 2016/11/18

  1. A shortcut to a species“, by Elizabeth Pennisi (Science). Darwin’s finches offer insight into isolation and speciation.
  2. A new evolutionary classic“, by Elizabeth Pennisi (Science). New research suggests that rove beetles evolved “at least a dozen [separate] times” in infiltrating ant colonies, a stunning example of convergent evolution.

Science — 2016/08/12

Today’s selection of articles:

  1. NIH plans to fund human-animal chimera research“, by Jocelyn Kaiser (Science).
  2. Particle no-show at LHC prompts anxiety“, by Adrian Cho (Science). Scientists hope that the Large Hadron Collider (LHC) will directly reveal new particles. But if these hopes continue to be disappointed despite increasing amounts of data (measured in inverse femtobarns), research ath LHC will shift to making more-precise measurements of known particles.
  3. The impact of homelessness prevention programs on homelessness“, by William N. Evans, James X. Sullivan, & Melanie Wallskog (Science). For $10,300 per person, you can avert homelessness, yielding an estimated benefit of more than $20,000. Do you buy it?
  4. Local modulation of human brain responses by circadian rhythmicity and sleep debt“, by Pierre Maquet et al. (Science). A fMRI sleep-deprivation study to better understand “the mechanisms involved in maintaining cognition”.

Read — 2015/11/20

Today’s selection of articles includes:

  1. A faster, brighter picture of brain cells in action“, by Emily Underwood (Science). A new technology — combining an engineered protein with a protein derived from fungus — allows scientists to view brain cells in action at a temporal resolution of 0.2 milliseconds.
  2. Crystalline eyes of chitons inspire materials scientists“, by Elizabeth Pennisi (Science). Chitons, with a 500-million-year-old fossil record, show that Nature knows a little something about dual-use materials (specifically, aragonite).

Science — 2015/07/12

Today’s selection of articles includes:

  1. Protecting neurons from amyloid β“, by Lane-Donovan et al. (Science Signaling).
  2. An over-massive black hole in a typical star-forming galaxy, 2 billion years after the Big Bang“, by Benny Trakhtenbrot et al. (Science).

Science — 2015/05/29

Today’s selection of articles includes:

  1. New human ancestor discovered near fossil of ‘Lucy’“, by Ewen Callway (Nature).
  2. Big-toothed prehistoric human lived alongside ‘Lucy’“, by Jennifer Viegas (Discovery News).
  3. Toward better control of genome editing“, by Valda Vinson (Science). Researchers achieve increased specificity in Cas9 DNA cleavage via pharmacological activation.

Science — 2015/05/24

Today’s selection of articles includes:

  1. Systematic humanization of yeast genes reveals conserved functions and genetic modularity“, by A.H. Kachroo et al. (Science). A study replaces yeast genes with their human orthologs — and finds that, in about half the genes studied, the replacement genes were functional.
  2. New film traces Cary Fowler’s quest to build the doomsday seed vault“, by Virginia Gewin (ScienceInsider).

Science — 2015/05/17

Today’s selection of articles includes:

  1. How birds got their beaks“, by Elizabeth Pennisi (Science). Dr. Abzhanov and Dr. Bhullar “have demonstrated a powerful new approach: pinning down how anatomy changes using fossils, then trying the recapitulate the changes in the lab by tinkering with genetic signals”. Their study suggests that the genes Fibroblast growth factor 8 (Fgf8) and WNT were involved in the evolution of beaks from snouts. Other researchers express reservations about these pathways, proposing sonic hedgehog (SHH) as the critical gene in beak formation.

Science — 2015/05/06

Today’s selection of articles includes:

  1. Dolphins living in closer quarters are friendlier“, by Lori Cuthbert (Discovery News).

Science — 2015/05/04

Today’s selection of articles includes:

  1. Managing eight arms“, by Peter Stern (Science). Kinematic analysis of how an octopus moves.
  2. Beyond graphene“, by Robert F. Service (Science). Forget 3D, 4D, etc. — 2D materials is a modern hotspot.
  3. Selective information routing by ventral hippocampal CA1 projection neurons“, by S. Ciocchi et al. (Science). Brain areas appear to communicate via directed signals.
  4. Proteomics reveals dynamic assembly of repair complexes during bypass of DNA cross-links“, by Markus Räschle et al. (Science). Insight into the proteins and timing involved in DNA replication of damaged chromatin (more precisely, DNA with interstrand cross-links).

Science — 2015/04/25

Today’s selection of articles includes:

  1. Symbionts on the road to a single species“, by Julia Fahrenkamp-Uppenbrink (Science). And the two (symbionts) shall become one. Links to the Perspective article by Kiers & West (“Evolving new organisms via symbiosis“).
  2. The delicate dance of translation and folding“, by Joseph D. Puglisi (Science). Two recent studies shed light on the timing of protein folding and its interaction with the translation process. Links to research articles by Goldman et al. (“Mechanical force releases nascent chain-mediated ribosome arrest in vitro and in vivo“) and Kim et al. (“Translational tuning optimizes nascent protein folding in cells“) in the current issue of Science.