Search results for "production [diffraction]"

Anorectal malformations and pregnancy-related disorders: a registry-based case-control study in 17 European regions

2013

Objective To identify pregnancy-related risk factors for different manifestations of congenital anorectal malformations (ARMs).Design A population-based case-control study.Setting Seventeen EUROCAT (European Surveillance of Congenital Anomalies) registries, 1980-2008.Population The study population consisted of 1417 cases with ARM, including 648 cases of isolated ARM, 601 cases of ARM with additional congenital anomalies, and 168 cases of ARM-VACTERL (vertebral, anal, cardiac, tracheo-esophageal, renal, and limb defects), along with 13371 controls with recognised syndromes or chromosomal abnormalities.Methods Multiple logistic regression analyses were used to calculate adjusted odds ratios …

Les scolarités de la maternelle au lycée. Etapes et processus dans la production des inégalités sociales

1993

Marie Duru-Bellat, Jean-Pierre Jarousse, Alain Mingat : Die Schullaufbahnen von der Vorschule bis zum Gymnasium. Etappen und Prozesse in der Entstehung der sozialen Ungleichheit. Die Daten der Schuldemographie zeigen wichtige soziale Unterscheidungen beim Zugang zu identifizierten Schullaufbahnebenen wie Abitur oder Hochschule. Zwar ist dièse transversale Perspektive nützlich, sie ist jedoch unzureichend, um festzulegen, nach welchem "Kalender" und durch welche Mechanismen diese Unterscheidungen nach und nach entstehen. Dieser Artikel möchte die verschiedenen Rollen jeder dieser Unterrichtsebenen bewerten und dabei unterscheiden, was auf soziale Erfolgsunterschiede zuruckzufiihren ist, und …

Urine tropenol ester levels in workers handling tiotropium bromide synthesis: implications for exposure prevention and biomonitoring

2019

Tropenol ester is a highly toxic anticholinergic substance and an intermediate used in industrial production of the bronchodilator tiotropium bromide. The aim of this study was to systematically test workers involved in its production for tropenol ester in urine to identify any exposure pathways and define additional preventive measures. Twelve workers performing tasks involving potential exposure to tropenol ester were repeatedly monitored at the end of each production cycle. Medical exams revealed no symptoms of acute poisoning with tropenol ester, but biological monitoring of urine showed 36 positive findings in 79 samples, with tropenol ester concentrations ranging between the detection…

L'école primaire en Afrique

1992

The Green Deal and the CAP: policy implications to adapt farming practices and to preserve the EU's natural resources

2020

The June 2018 CAP proposals are only marginally consistent with the ambitions of the Green Deal. This is also the case of the regulation revisions being adopted by either the Council or the European Parliament in October 2020. Making EU agriculture consistent with the Green Deal but would require a whole food chain policy that encompasses more stringent instruments on the supply side and extensive changes in eating patterns.

The production cycle of lime-based plasters in the Late Roman settlement of Scauri, on the island of Pantelleria, Italy

2018

This paper deals with the archaeometric study of lime-based plasters found in the archaeological settlement of Scauri, located in the homonymous bay in the south-western part of Pantelleria Island. Since 1999, archaeological surveys have led to the recovery of the huge remains of a Late Roman settlement dating back to the fourth-fifth century AD. It is well known that the island of Pantelleria is entirely composed of volcanic rocks. Accordingly, the production of quicklime required calcareous rocks to be imported. Also, the selection criteria of the sandy aggregate are relevant and of interest to this study, to evaluate the achieved technological level. Within this context, a mineralogical …

Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth

2014

The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60° and different energies of the primary particle. From these distributions, we define Xμmax as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of Xμmax as a useful observable to infer the mass compositi…

Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2uptake by continental weathering and alkalinity river …

2003

[1] The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic timescale and is mainly controlled by the chemical properties of rocks. This leads us to develop the first world lithological map with a grid resolution of 1° × 1°. This paper analyzes the spatial distribution of the six main rock types by latitude, continents, and ocean drainage basins and for 49 large river basins. Coupling our digital map with the GEM-CO2 model, we have also calculated the amount of atmospheric/soil CO2 consumed by rock weathe…

Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery

2017

Abstract Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m−2-electrode area with 2 M ethylenediamine, and 119 ± 4 W m−2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m−3-anolyte, which was ∼50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammon…

Practical Issues on Energy-Growth Nexus Data and Variable Selection With Bayesian Analysis

2018

Abstract Given that the energy-growth nexus (EGN) is short of a complete theoretical base, the production function used therein is typically complemented with numerous variables that characterize an economy. Researchers are often puzzled not only with the selection of variables per se, but also with the variable sources and the various data handlings which become apparent and available only after years of experience in this research field. Thus, this chapter is divided into two distinctive parts: The first part contains an overview of the available data sources for the EGN as well as a succinct selection of advice on data handlings, transformations, and interpretations that could come handy…