We present the development and testing of a Micromegas detector prototype and its front end intended to be a candidate for the substitutions of some of the Multiwire Proportional Chambers in the ...future AMBER (NA66) experiment at CERN. Results of the test of the first small size prototype are discussed.
•The Apparatus for Mesons and Baryon Experimental Research at CERN is requiring new detectors.•Micro-Pattern Gaseous Detector technology is a good candidate for the future upgrades.•MICRO-MEsh GAS detector read-out by the Torino Integrated Gem Electronics for Read-out ASIC.
Heavy ion fusion energy program in Russia Sharkov, B.Yu; Alexeev, N.N.; Churazov, M.D. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
05/2001, Letnik:
464, Številka:
1
Journal Article
Recenzirano
An overview of the activities in progress of the Russian Heavy-Ion Fusion Energy community is given for the period since the last Symposium in Heidelberg in 1997. The progress in up-grading of the ...ITEP accelerator complex (project ITEP-TWAC), target simulations and recent results on heavy ion beam–plasma interaction physics are emphasized.
The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190 GeV/c π^{-} beam and a transversely polarized ...ammonia target. Three azimuthal asymmetries giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.3 GeV/c^{2} and 8.5 GeV/c^{2}. Within the experimental uncertainties, the observed sign of the Sivers asymmetry is found to be consistent with the fundamental prediction of quantum chromodynamics (QCD) that the Sivers TMD PDFs extracted from DY have a sign opposite to the one extracted from semi-inclusive deep-inelastic scattering (SIDIS) data. We present two other asymmetries originating from the pion Boer-Mulders TMD PDFs convoluted with either the nucleon transversity or pretzelosity TMD PDFs. A recent COMPASS SIDIS measurement was obtained at a hard scale comparable to that of these DY results. This opens the way for possible tests of fundamental QCD universality predictions.
The aim of this paper was to study gut microbiota composition in patients with different metabolic statuses.
92 participants aged 25⁻76 years (26 of whom were men), with confirmed absence of ...cardiovascular and other chronic diseases (but with the possible presence of cardiovascular risk factors) were included. Carotid ultrasound examinations, 16
rRNA sequencing of stool samples and diet assessments were performed. Statistical analysis was performed using R programming language, 3.1.0.
Enterotyping yielded two clusters differentiated by alpha-diversity. Intima-media thickness was higher in the cluster with lower diversity (adj.
< 0.001). Obesity was associated with higher
(adj.
= 0.003) and
(adj.
< 0.0003) in relative abundance. Abdominal obesity was associated with higher abundance of
(adj.
= 0.004) and
(adj.
= 0.0008) and lower levels of
(adj.
= 0.0005). Glucose metabolism disturbances were associated with higher
(adj.
= 0.0007) and
(adj.
= 0.003) prevalence. Arterial hypertension was associated with high
levels (adj.
= 0.002). The
genus strongly correlated with low resistant starch consumption (adj.
= 0.007). A combination of high-fat diet and elevated
levels was very common for diabetes mellitus type 2 patients (adj.
= 0.0001).
The results show that there is a relationship between metabolic changes and higher representation of opportunistic pathogens and low diversity of gut microbiota even in apparently healthy participants.
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