318 research outputs found
Ozone damage and tolerance in leaves of two poplar genotypes.
The effects induced by an acute ozone exposure were investigated in two poplar hybrids differen- tially O3 susceptible in terms of leaf injuries: Populus deltoides x maximowiczii, Eridano clone and..
Phenolic Profiles of Red Wine Relate to Vascular Endothelial Benefits Mediated by SIRT1 and SIRT6
Effects of charge doping on Mott insulator with strong spin-orbit coupling, BaNaOsO
The effects of doping on the electronic evolution of the Mott insulating
state have been extensively studied in efforts to understand mechanisms of
emergent quantum phases of materials. The study of these effects becomes ever
more intriguing in the presence of entanglement between spin and orbital
degrees of freedom. Here, we present a comprehensive investigation of charge
doping in the double perovskite BaNaOsO, a a complex Mott insulator
where such entanglement plays an important role. We establish that the
insulating magnetic ground state evolves from canted antiferromagnet (cAF)to
N\'eel order for dopant levels exceeding ~ 10 %. Furthermore, we determine that
a broken local point symmetry (BLPS) phase, precursor to the magnetically
ordered state, occupies an extended portion of the (H-T) phase diagram with
increased doping. This finding reveals that the breaking of the local cubic
symmetry is driven by a multipolar order, most-likely of the
antiferro-quadrupolar type
Surgical site infection after caesarean section. Space for post-discharge surveillance improvements and reliable comparisons
Surgical site infections (SSI) after caesarean section (CS) represent a substantial health system concern. Surveying SSI has been associated with a reduction in SSI incidence. We report the findings of three (2008, 2011 and 2013) regional active SSI surveillances after CS in community hospital of the Latium region determining the incidence of SSI. Each CS was surveyed for SSI occurrence by trained staff up to 30 post-operative days, and association of SSI with relevant characteristics was assessed using binomial logistic regression. A total of 3,685 CS were included in the study. A complete 30 day post-operation follow-up was achieved in over 94% of procedures. Overall 145 SSI were observed (3.9% cumulative incidence) of which 131 (90.3%) were superficial and 14 (9.7%) complex (deep or organ/space) SSI; overall 129 SSI (of which 89.9% superficial) were diagnosed post-discharge. Only higher NNIS score was significantly associated with SSI occurrence in the regression analysis. Our work provides the first regional data on CS-associated SSI incidence, highlighting the need for a post-discharge surveillance which should assure 30 days post-operation to not miss data on complex SSI, as well as being less labour intensive
Azimuthal correlation between beauty particles produced in 350 GeV/c -Cu interactions
Using a sample of triggered events, produced in interactions in a copper target, we have identified b\=b events. These include events where the decays of both and are well reconstructed. We measure the azimuthal \hbox{correlation} between beauty particles, and compare our result with predictions based on perturbative QCD
Strand‐specific, high‐resolution mapping of modified RNA polymerase II
Reversible modification of the RNAPII C-terminal domain links transcription with RNA processing and surveillance activities. To better understand this, we mapped the location of RNAPII carrying the five types of CTD phosphorylation on the RNA transcript, providing strand-specific, nucleotide-resolution information, and we used a machine learning-based approach to define RNAPII states. This revealed enrichment of Ser5P, and depletion of Tyr1P, Ser2P, Thr4P, and Ser7P in the transcription start site (TSS) proximal ~150 nt of most genes, with depletion of all modifications close to the poly(A) site. The TSS region also showed elevated RNAPII relative to regions further 3′, with high recruitment of RNA surveillance and termination factors, and correlated with the previously mapped 3′ ends of short, unstable ncRNA transcripts. A hidden Markov model identified distinct modification states associated with initiating, early elongating and later elongating RNAPII. The initiation state was enriched near the TSS of protein-coding genes and persisted throughout exon 1 of intron-containing genes. Notably, unstable ncRNAs apparently failed to transition into the elongation states seen on protein-coding genes
Measurements of charmed-meson production in interactions between 350 GeV/c particles and nuclei
Charmed-meson production by ~GeV/ {} particles incident on copper and tungsten targets has been studied in the WA experiment, performed at the CERN spectrometer. Results obtained are reported and discussed. Reconstruction of decays from the set , , , and charge conjugates has yielded a sample of charmed mesons, produced with \xf > 0, \langle \xf \rangle = 0.18 and \langle {\pt}^2 \rangle = 1.86~{\rm (GeV/}c{\rm )}^2. Assuming a relationship between the cross-section, , per nucleus of mass and the nucleonic cross-section, , the value found for the detected charmed particles is . Taking , the measured cross-sections per nucleon for \xf > 0 production are ~barn for /, ~barn for / and ~barn for /. Differential cross-sections with respect to \xf and {\pt}^2 have been determined for the various types of charmed meson, and particle-antiparticle asymmetries have been analysed
Measurement of the beauty production cross-section in 350 GeV/c -Cu interactions
Using a sample of triggered events, produced in --Cu interactions at 350~GeV, we have identified 26 beauty events. The estimated background in this sample is events. From these data, assuming a linear A-dependence, we measure a beauty production cross-section integrated over all of nb/N
- …