XMASS anounced their solar axion limit
28/December/2012 11:06 Filed in: Dark Matter
XMASS dark matter experiment in Japan announced their solar axion limit, using 6.7 days, total of 5.6 ton-days.
Their limit below 1 keV axion mass is g_Ae < 5.4 × 10−11 (90% C.L.).
http://arxiv.org/abs/1212.6153 (The final plot is given below.)
Their paper can be compared to the predicted sensitivity given by Arisaka Lab's analysis:
http://arxiv.org/abs/1209.3810
Their limit below 1 keV axion mass is g_Ae < 5.4 × 10−11 (90% C.L.).
http://arxiv.org/abs/1212.6153 (The final plot is given below.)
Their paper can be compared to the predicted sensitivity given by Arisaka Lab's analysis:
http://arxiv.org/abs/1209.3810
Nine-Year WMAP results announced
21/December/2012 20:27 Filed in: Cosmology
| The model fit implies that the age of the universe is 13.772+/-0.059 Gyr, and the fit Hubble constant is H0 = 69.32+/-0.80 km/s/Mpc. Inflation is also supported: the fluctuations are adiabatic, with Gaussian random phases; the detection of a deviation of the scalar spectral index from unity reported earlier by WMAP now has high statistical significance (n_s = 0.9608+/-0.0080); and the universe is close to flat/Euclidean, Omega_k = -0.0027 (+0.0039/-0.0038). Overall, the WMAP mission has resulted in a reduction of the cosmological parameter volume by a factor of 68,000 for the standard six-parameter LCDM model, based on CMB data alone. |
How do environments talk to genes?
21/December/2012 17:52 Filed in: Neuroscience
In Nature Neuroscience January 2013 issue, Moshe Szyf explains the environmental interaction onto genes.
A report elucidates the widely recognized, but poorly understood, concept of gene-environment interaction, finding a molecular mechanism in the case of post-traumatic stress disorder: demethylation of a glucocorticoid response element in the stress response regulator FKBP5 that depends on both the risk allele and childhood trauma.
A report elucidates the widely recognized, but poorly understood, concept of gene-environment interaction, finding a molecular mechanism in the case of post-traumatic stress disorder: demethylation of a glucocorticoid response element in the stress response regulator FKBP5 that depends on both the risk allele and childhood trauma.
6th Symposium on Large TPCs at Paris on Dec 17-19, 2012
20/December/2012 06:33 Filed in: Dark Matter
SIXTH SYMPOSIUM ON LARGE TPCs FOR LOW ENERGY RARE EVENT DETECTION
at PARIS 13ème, France
on December 17-19, 2012
http://www-tpc-paris.cea.fr
Presentations are posted under "Slides".
at PARIS 13ème, France
on December 17-19, 2012
http://www-tpc-paris.cea.fr
Presentations are posted under "Slides".
Astronomers detect nearest Earth-like neighbour
19/December/2012 03:59 Filed in: Origin
Scientists have been surprised by the unexpected discovery of a nearby solar system using a new experimental technique.
The system of five planets ranging in size from two to six times the Earth's mass orbiting the Sun-like star Tau Ceti, just 12 light years away.
ABC News
http://arxiv.org/abs/1212.4058
The system of five planets ranging in size from two to six times the Earth's mass orbiting the Sun-like star Tau Ceti, just 12 light years away.
ABC News
http://arxiv.org/abs/1212.4058
Adrian Cheng, Named to Forbes’ 30 Under 30 as a Rising Star in Science
17/December/2012 07:55 Filed in: Arisaka Group
A formal grad student of Arisaka Lab, Adrian Cheng, was named to "Forbes’ 30 Under 30 as a Rising Star in Science"
This is based on our development of high-speed two-photon microscopes while he was at UCLA.
The old news at UCLA in 2011 can found at Daily Bruin on Jan 18, 2011.
Our original paper was published at
This is based on our development of high-speed two-photon microscopes while he was at UCLA.
The old news at UCLA in 2011 can found at Daily Bruin on Jan 18, 2011.
Our original paper was published at
- Simultaneous two-photon calcium imaging at different depths with spatiotemporal multiplexing.
- Cheng A, Gonçalves JT, Golshani P, Arisaka K, Portera-Cailliau C.
- Nat Methods. 2011 Feb;8(2):139-42. Epub 2011 Jan 9.
'Obamadon' was wiped out by the asteroid
11/December/2012 00:40 Filed in: Origin
Asteroid that killed the dinosaurs also wiped out the ‘Obamadon’,
The asteroid collision widely thought to have killed the dinosaurs also led to extreme devastation among snake and lizard species, according to new research — including the extinction of a newly identified lizard Yale and Harvard scientists have named Obamadon gracilis. The published paper can be fund here.
The asteroid collision widely thought to have killed the dinosaurs also led to extreme devastation among snake and lizard species, according to new research — including the extinction of a newly identified lizard Yale and Harvard scientists have named Obamadon gracilis. The published paper can be fund here.
Neutralino excluded up to ~250 GeV
16/November/2012 10:00 Filed in: CMS
The neutralino is excluded up to ~250 GeV.
At the Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
the new CMS results were reported.
At the Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
the new CMS results were reported.
Higgs results updated with 7 sigma
16/November/2012 09:00 Filed in: CMS
Significance of Higgs particle has been up to 7 sigma now.
The Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
The new CMS results were reported.
The Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
The new CMS results were reported.
New South Pole Telescope shows Omaga = 1.006 +- 0.004
26/October/2012 09:00 Filed in: Cosmology
The South Pole Telescope published the new results.
Omega_K=-0.003+0.014-0.018. Using the SPT+WMAP7 data, the spectral index of scalar fluctuations tis ns=0.9623+/-0.0097 in the LCDM model, a 3.9sigma preference for a scale-dependent spectrum with ns<1.
Omega_K=-0.003+0.014-0.018. Using the SPT+WMAP7 data, the spectral index of scalar fluctuations tis ns=0.9623+/-0.0097 in the LCDM model, a 3.9sigma preference for a scale-dependent spectrum with ns<1.
