Dominique Ruffieux

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Objective:To assess relationships between energy, nutrient and food intakes, alcohol consumption, smoking status and body mass index (BMI), and serum concentrations of β-carotene, α-tocopherol, vitamin C, selenium and zinc.Methods:Data on health status, alcohol consumption, smoking habits, anthropometric data and biochemical measurements were obtained in(More)
The objective of the present work was to assess the relationship between serum Se concentrations and environmental determinants (i.e. lifestyle, social activity, geographic region, urban status, education, familial status, physical activity, BMI, tobacco, and food and alcohol consumption). Baseline results from 13 017 subjects (7876 women aged 35-60 and(More)
Background/Objectives:Few studies have been conducted on determinants of serum zinc concentration, especially in France. The aim of this study was to investigate the relationships between serum zinc concentrations, and age, education, living area and life style in a large sample cohort of French adults.Subjects/Methods:Blood samples were collected after(More)
The performance of the boundary determination of fog and low stratiform cloud layers with data from a frequency-modulated continuous-wave (FMCW) cloud radar and a Vaisala ceilometer is assessed. During wintertime stable episodes, fog and low stratiform cloud layers often occur in the Swiss Plateau, where the aerological station of Payerne, Switzerland, is(More)
The effect of adult age, sex, diurnal rhythm and pregnancy on the serum level of copper, zinc, iron and manganese determined by flameless atomic absorption is described. There was no diurnal variation for serum copper but a significant decrease for the other three metals. Copper concentration is lower in males and iron lower in females. Zinc and manganese(More)
This study was supported in part by the Dutch ‘Praeventiefonds/ZON9 (Grant 28-3022). We thank Drs. A.W.M. Nieuwint, Y.M. Heins, and K. Madan from the Department of Clinical Genetics and the physicians of the Division of Prenatal Diagnosis of the Department of Obstetrics and Gynecology for their support. We thank Vysis Inc. for their collaboration and for(More)
Measurements of tropospheric integrated water vapour (IWV) made with two microwave radiometers (ASMUWARA, TP/WVP-3000), GPS, and radiosondes (SRS 400) during the Temperature, hUmidity, and Cloud (TUC) profiling campaign under mid-latitude conditions in Payerne, Switzerland, in winter 2003/2004 are compared. All methods provide robust IWV retrievals in clear(More)
Two digestion methods for the determination of selenium in biological samples have been compared: a classic digestion in a heating block by means of wet acid-ashing (HNO3-HClO4) and a microwave digestion in an open-vessel system by heating under reflux with HNO3-H2O2. The two methods were used to determine Se in plasma samples and different reference(More)
Stratospheric O3 profiles obtained by the satellite limb sounders Aura/MLS, ENVISAT/MIPAS, ENVISAT/GOMOS, SAGE-II, SAGE-III, UARS/HALOE are compared to coincident O3 profiles of the ground-based microwave radiometer SOMORA in Switzerland. Data from the various measurement techniques are within 10% at altitudes below 45 km. At altitudes 45–60 km, the(More)