Discover and read the best of Twitter Threads about #cmb
Most recents (6)
#WeekendLecture
#CerebralMicrobleeds #CMB
Radiological construct: small (2–10 mm diameter) round or ovoid #hypointense foci with associated #blooming with enhanced visibility on #MRI sequences sensitive to #susceptibility effects
thelancet.com/journals/laneu…
#CerebralMicrobleeds #CMB
Radiological construct: small (2–10 mm diameter) round or ovoid #hypointense foci with associated #blooming with enhanced visibility on #MRI sequences sensitive to #susceptibility effects
thelancet.com/journals/laneu…
#WeekendLecture
#CMB
🔬#Pathology: recent or old microhaemorrhages
🩸Microvessel injuries, ie: dilatation/fragmentation of the wall, amyloid-ß (in CAA) and fibrin extravasation
🩸Extravasation of red blood cells
🩸#hemosiderin-laden macrophages
karger.com/Article/FullTe…
#CMB
🔬#Pathology: recent or old microhaemorrhages
🩸Microvessel injuries, ie: dilatation/fragmentation of the wall, amyloid-ß (in CAA) and fibrin extravasation
🩸Extravasation of red blood cells
🩸#hemosiderin-laden macrophages
karger.com/Article/FullTe…
#WeekendLecture
In daily practice #CMB represents a radiological marker of #small vessel disease
In general:
🩸Strictly #lobar CMBs👉CAA
🩸Strictly #deep👉hypertension-related SVD ie #arteriolosclerosis
🩸Mixed 👉combination👆, but must think #hereditary #SVD, ie #CADASIL
In daily practice #CMB represents a radiological marker of #small vessel disease
In general:
🩸Strictly #lobar CMBs👉CAA
🩸Strictly #deep👉hypertension-related SVD ie #arteriolosclerosis
🩸Mixed 👉combination👆, but must think #hereditary #SVD, ie #CADASIL
Just released @healpy 1.15.0, this is a large release with many important changes, please test and open issues at github.com/healpy/healpy/….
Thread with changes:
* New viz function `projview` based on plain matplotlib, with lon/lat labels and more healpy.readthedocs.io/en/latest/newv…
Thread with changes:
* New viz function `projview` based on plain matplotlib, with lon/lat labels and more healpy.readthedocs.io/en/latest/newv…
* Finally new default for I/O: write_map keeps dtype of input map array instead of float32, read_map keeps dtype of FITS file instead of upcasting to float64, write_cl uses dtype of input cl instead of float64, see discussion in github.com/healpy/healpy/…
* Changed all warnings to using the logging module, deprecated all verbose keywords , see the docs healpy.readthedocs.io/en/latest/#ver…, discussion in github.com/healpy/healpy/…
Inspired by arxiv.org/abs/1907.10625 and several important observational updates in recent months, I put together an updated compilation plot of H0 measurements from indirect (cosmological-model-dependent) and direct methods. References are in the thread below. All units km/s/Mpc
Planck 2018: arxiv.org/abs/1807.06209 H0 = 67.36 +/- 0.54 This is derived from the CMB TT+TE+EE and CMB lensing power spectra. ("This value is our “best estimate” of H0 from Planck, assuming the base-LCDM cosmology." on their page 17)
ACT DR4 + WMAP9: arxiv.org/abs/2007.07288 H0 = 67.6 +/- 1.1 This is derived from the CMB TT+TE+EE power spectra, with a conservative prior on the optical depth tau. @ACT_Pol verifies that Planck 2018 'low' H0 value is not due to any systematics in CMB data.
New @Planck results out today. Everybody get reading!! cosmos.esa.int/web/planck/pub… #cosmology #CMB #astrotastic
@Planck This paper gives a comparison between likelihoods for the data - generally in agreement although for some parameters there is a systematic difference of 0.5sigma between likelihoods on the same data.
@Planck Which is also shown in this figure, comparing the ’15 results to the ’18 ones (the systematic likelihood shift is the worst for the baryon density, and therefore the shift between different releases).
From an almost perfect Universe to the best of both worlds: final data release of our @Planck mission confirms the standard model of cosmology... but with a few details to puzzle over ➡️ esa.int/Our_Activities…
Planck scanned the sky between 2009 and 2013 to observe the Cosmic Microwave Background, or #CMB, which is the most ancient light in the history of our Universe, emitted only 400,000 years after the Big Bang, and hidden beneath the microwave emission of our Milky Way galaxy
Have been constantly telling Scheme ≠ Board. Supreme Court clarifies the same; it isn't rocket science anyway! Alas, who should/will take the correct interpretation of the Supreme Court judgement to the people of TN?
Firstly, Supreme Court didn't order #CauveryManagementBoard be set up in 6 weeks, it is absolutely incorrect. Supreme Court commanded a Scheme to be framed in 6-week period. Media/Parties that are supposed to be neutral rather carried a vicious campaign misinterpreting the Order.
What is a "Scheme" & why is it needed? To unearth Constitutional constraints in setting up #CauveryManagementBoard & to clarify the perplexities & create a complete system in place that'll have perpetual succession irrespective of whichever Govt. is in place in the states/centre.
