Search results for " treatments"

NMR relaxation in modern wood and treated and untreated wood from a XVI century wooden statue

2007

Longitudinal (T1) relaxation data are presented for European lime (Tilia cordata Mill) wood samples, a modern sample and two from a XVI century wooden statue, one of which samples is treated with Paraloid B72 for preservation. The 1H signals from liquid and solid are separated in the free induction decays (FID). T1 distributions are obtained by UPEN and show two resolved peaks for the liquid component of either untreated wood but a wide distribution for the liquid of the treated sample. In each case, the solid component showed a single peak, which for either untreated sample was at about the position of the longer T1 liquid peak. We compute geometric-mean times, T1-gm, 2.1 and 36 ms for the…

ELECTROCHEMICAL ABATEMENT OF ORGANIC POLLUTANTS IN WATER IN MICROFLUIDIC DEVICES

2012

ELECTROCHEMICAL ABATEMENT OF AZO 7 IN WATER SOLUTION IN MACRO AND MICRO CELLS

2012

Water capillary absorption in porous media in different wettability conditions studied by Quantitative MRI and X-ray CT

2007

X-ray computed tomography (CT) and magnetic resonance imaging (MRI) have been successfully applied to study both the capillary properties of several samples of Lecce stone and the performances of treatments used for protection and conservation of historical stone artifacts. The presence of water inside the sample may be visualized by both MRI and X-ray CT. For the treated samples, the different dynamics of water absorption gives indirectly the efficacy of the polymer in the rock.

Disentangling local agronomic practices from agricultural landscape effects on pest biological control

2019

International audience; The biological control of crop pests is a valuable service provided by various beneficial organisms that are naturally present in agricultural landscapes. Semi-natural habitats has long been recognized as essential to preserve beneficial insects, but proof of their efficiency to enhance biological control of pests remains non conclusive. Here, we examined the variability of landscape effect on biological pest control and the way local agronomic practices may modulate it. Biological pest control was monitored in 80 commercial fields (arable crops and orchards) during three consecutive years in four contrasting French agricultural landscapes distributed along a double …

Transcriptome of the early steps of Botrytis cinerea infection

2010

International audience

Infertility as a lonely struggle? : Coping stories of previously infertile women

2023

In this narrative study, we explored the meaning infertile women attribute to social support in coping with their infertility-related challenges. Written accounts and episodic interviews with 26 previously infertile Finnish women were used as data. Two different coping story types emerged: coping alone and coping with support. In the coping alone type women neither sought nor received support. Their coping appeared as a lonely struggle. In the coping with stories, women turned to their spouses, peers, or professionals, but still emphasized that they would have needed more support. Based on our findings, we underline the need for individually tailored support. peerReviewed

The influence of soft acidic drinks in exposing dentinal tubules after non-surgical periodontal treatment: a SEM investigation on the protective effe…

2007

Objective: The aim of this study was to investigate the different smear layer morphologies produced by instrumentation with a hand curette and a periodontal sonic scaler for potential removal by soft acidic solution. The effect of a new oxalate-containing phytocomplex spray in preventing tubules exposure after citric acid solution application was also evaluated. Methods: Thirty recently extracted human teeth were used to obtain root dentinal fragments and divided in two groups: Curette treatment (CRT) root planed applying 30 working strokes to each surface using a Gracey?s curette 5-6 and Ultrasonic scaler (USC) treated using a periodontal scaler mounted on an ultrasonic hand-piece for 30 s…

Single-Center Retrospective Series of Intracranial Aneurysms Treated with the Barricade Coil System: Immediate and Six-Month Results

2020

Abstract Intracranial aneurysms (IAs) are most commonly found at the branch points of large arteries that form the circle of Willis. The prevalence of IAs in the adult population is 1–5%. IAs rupture is associated with subarachnoid haemorrhage (SAH) in 6–8 cases per 100 000 population, causing mortality in 40–50%. Aneurysm treatment is used to prevent rupture or rebleeding (for ruptured IAs). Randomised trials demonstrated the superiority of endovascular treatment (EVT) of ruptured aneurysms with coil systems over surgery. The objective of the study was to evaluate the effectiveness of the Barricade coil system in the treatment of intracranial aneurysms. Detachable platinum coils, since the…

Graphene oxide and Fumed silica graphene oxide nanocomposites modification by thermal treatments

2014

In the present study we investigate post synthesis thermal treatments up to 400 °C of graphene oxide (GrO) prepared from commercial graphite and of GrO–silica nanocomposites prepared by a solution of commercial Fumed silica nanoparticles (average diameter 7 nm or 40 nm) and the GrO. The thermal treatments were carried out in air, vacuum or He atmosphere to highlight tunable changes. Two GrO batches with small differences in the D (~1350 cm–1) and G (~1580 cm–1) Raman bands have been employed to evaluate effects depending on preparation. Thermal effects have been monitored through the Raman spectroscopy focusing on D, G and 2D (2500–3500 cm–1) bands spectral ranges. The experiments evidenced…