50 research outputs found
Risk of subsequent gliomas and meningiomas among 69,460 5-year survivors of childhood and adolescent cancer in Europe:the PanCareSurFup study
BACKGROUND: Childhood cancer survivors are at risk of subsequent gliomas and meningiomas, but the risks beyond age 40 years are uncertain. We quantified these risks in the largest ever cohort.METHODS: Using data from 69,460 5-year childhood cancer survivors (diagnosed 1940-2008), across Europe, standardized incidence ratios (SIRs) and cumulative incidence were calculated.RESULTS: In total, 279 glioma and 761 meningioma were identified. CNS tumour (SIR: 16.2, 95% CI: 13.7, 19.2) and leukaemia (SIR: 11.2, 95% CI: 8.8, 14.2) survivors were at greatest risk of glioma. The SIR for CNS tumour survivors was still 4.3-fold after age 50 (95% CI: 1.9, 9.6), and for leukaemia survivors still 10.2-fold after age 40 (95% CI: 4.9, 21.4). Following cranial radiotherapy (CRT), the cumulative incidence of a glioma in CNS tumour survivors was 2.7%, 3.7% and 5.0% by ages 40, 50 and 60, respectively, whilst for leukaemia this was 1.2% and 1.7% by ages 40 and 50. The cumulative incidence of a meningioma after CRT in CNS tumour survivors doubled from 5.9% to 12.5% between ages 40 and 60, and in leukaemia survivors increased from 5.8% to 10.2% between ages 40 and 50.DISCUSSION: Clinicians following up survivors should be aware that the substantial risks of meningioma and glioma following CRT are sustained beyond age 40 and be vigilant for symptoms.</p
The GALAH survey: tracing the Galactic disk with Open Clusters
Open clusters are unique tracers of the history of our own Galaxy's disk.
According to our membership analysis based on \textit{Gaia} astrometry, out of
the 226 potential clusters falling in the footprint of GALAH or APOGEE, we find
that 205 have secure members that were observed by at least one of the survey.
Furthermore, members of 134 clusters have high-quality spectroscopic data that
we use to determine their chemical composition. We leverage this information to
study the chemical distribution throughout the Galactic disk of 21 elements,
from C to Eu. The radial metallicity gradient obtained from our analysis is
0.0760.009 dex kpc, which is in agreement with previous works
based on smaller samples. Furthermore, the gradient in the [Fe/H] - guiding
radius (r) plane is 0.0730.008 dex kpc. We show
consistently that open clusters trace the distribution of chemical elements
throughout the Galactic disk differently than field stars. In particular, at
given radius, open clusters show an age-metallicity relation that has less
scatter than field stars. As such scatter is often interpreted as an effect of
radial migration, we suggest that these differences are due to the physical
selection effect imposed by our Galaxy: clusters that would have migrated
significantly also had higher chances to get destroyed. Finally, our results
reveal trends in the [X/Fe]rage space, which are important
to understand production rates of different elements as a function of space and
time.Comment: 18 pages, 10 figures, accepted for publication MNRA
Itinéraire Méthodologique de Diagnostic Partagé des enjeux environnementaux. Comment accompagner le changement dans l'ingénierie territoriale d'Etat.
International audienc
Itinéraire Méthodologique de Diagnostic Partagé des enjeux environnementaux. Comment accompagner le changement dans l'ingénierie territoriale d'Etat.
International audienc
La mĂ©thode de diagnostic partagĂ© : comprendre et analyser un territoire avec les reprĂ©sentations spatiales schĂ©matiques pour produire le « Dire de lâĂtat »
4 page de la mallette pĂ©dagogique dâanalyse territoriale, DREAL Poitou-Charente
La mĂ©thode de diagnostic partagĂ© : comprendre et analyser un territoire avec les reprĂ©sentations spatiales schĂ©matiques pour produire le « Dire de lâĂtat »
4 page de la mallette pĂ©dagogique dâanalyse territoriale, DREAL Poitou-Charente
Structural and microwave properties of silica-coated NiFeMo flakes/polymer composites
International audienc
Characterization of ablated porcine bone and muscle using laser-induced acoustic wave method for tissue differentiation
A high power pulsed laser with millisecond pulse was used to interact with a bone and muscle of porcine, initiating an acoustic wave. We start to describe principle of laser ablation follows by the acoustic wave generation. Then, we present the characterization of these wave features for laser surgery applications