Search results for "Environment"

Pharmaceuticals in processing of municipal sewage sludge studied by grab and passive sampling

2018

Abstract Concentrations of pharmaceuticals, consisting of four anti-inflammatory and one antiepileptic drug, were studied in the aqueous and solid phase of municipal sewage sludge, collected from a wastewater treatment plant (WWTP) in central Finland. The samples included untreated municipal sludge from the biological wastewater treatment, digested sludge and sludge before and after composting. First, samples were taken as grab samples to study the bioavailable part in aqueous phase but also the part in solid fraction. Later, the long-term concentrations were studied by passive sampling with styrene divinylbenzene-reverse phase sulfonated (SDB-RPS) disks. In the untreated solid sludge, the …

Diversité taxonomique, phylogénétique et fonctionnelle de trois syntaxons des prairies permanentes

2014

National audience

The implementation of massive open online courses for training future engineers in higher education

2019

This paper investigates the features of the implementation, conduct, analysis and prospects for the use of massive, open online courses. The article deals with the main advantages and disadvantages of massive open online courses, presents a comparative analysis of research into implementation of massive, open online courses. The article outlines the basic course requirements. It contains an analysis of the current state of such courses in higher educational institutions. The article presents a number of recommendations for the development of the education system towards democratization of higher education

Drivers of job-related learning among low-educated employees in the Nordic countries

2018

This study explored drivers of participation in job-related lifelong learning (LLL) among low-educated mature-aged employees and compared them across four Nordic countries. Workplaces can be low-threshold, effective arenas for development of their skills in work and learning. The paper builds on the Bounded Agency Model and theories of learning motivation, human capital, and workplace learning. We used data from the Survey of Adult Skills (Programme for the International Assessment of Adult Competencies) by Organisation for Economic Co-operation and Development. The average participation rate was 36%. Results of the logistic regression analyses showed that income, skills use at work, sector…

Risk assessment of information on the subcombination Bt11 × 1507 × GA21, related to the application of Syngenta (EFSA‐GMO‐DE‐2011‐99) for authorisati…

2017

Efsa Panel On Genetically Modified Organisms (gmo)StatementRequestor: European CommissionQuestion number: EFSA-Q-2016-00730; The EFSA Panel on Genetically Modified Organisms (GMO) has previously assessed the single events Bt11, MIR162, MIR604 and GA21 as well as different stacked events corresponding to combinations of these events. These maize events were found to be as safe as their conventional counterparts and other appropriate comparators with respect to potential effects on human and animal health and the environment. In its assessment of the four-event maize stack Bt11 9 MIR162 9 MIR604 9 GA21, the GMO Panel also assessed all the subcombinations of these events not previously assesse…

Monitoring a meat-free pledge with smartphones:An experimental study

2020

Pledges are a popular strategy to encourage meat reduction, though experimental studies of their efficacy are lacking. Three-hundred and twenty-five participants from three different countries (UK, Germany, Australia) were randomly assigned to pledge 28 days meat-free or not, and their behavior was tracked via smartphones. Participants answered daily surveys regarding their eating behavior, meat cravings, and shared photos of their meals. Baseline data was collected prior to the pledge, after the 28 days, and one-month post-intervention. Participants assigned to the pledge condition ate less meat across the 28 days, compared to control participants. Meat reductions, observed at outtake, did…

Coordination mechanisms and parent-subsidiary relationships in volatile environments: a theoretical approach

2015

Este trabajo es una reflexión sobre cómo puede influir la volatilidad del entorno local de una filial sobre los mecanismos de coordinación que estructuran las relaciones matriz-filial: centralización, formalización y socialización, en presencia de algunos factores de contingencia tales como el enfoque estratégico de la multinacional, el país de origen, la complejidad, el tamaño y la edad. De igual manera se emplea la tipología sobre las relaciones matriz-filial de Ghoshal y Nohria (1989) para valorar su aplicabilidad en entornos volátiles. A partir de los razonamientos realizados se plantean algunas proposiciones y se presenta como principal conclusión que, en entornos volátiles, las relaci…

Simultaneous production of furfural and levulinic acid from pine sawdust via acid-catalysed mechanical depolymerization and microwave irradiation

2019

Abstract In this work pine sawdust was converted into levulinic acid (LA) and furfural. Sawdust was first pre-treated with sulfuric acid-catalysed mechanical depolymerization. The conversion reactions were then performed with microwave heating at 180 °C. To enhance the furfural yield and the efficient separation of furfural and LA, a biphasic water-toluene reaction system was used. The effect of an additional catalyst, AlCl3, on the yield of LA and furfural was also studied. According to the results the pre-treatment method enhanced the yields of LA. In addition, due to the microwave heating the reaction times were short. Additional AlCl3 catalyst enhanced the LA yield, however excellent fu…

Screencity Journal n. 1

2013

Motivation and Preferences of Visitors in the Bohemian Paradise UNESCO Global Geopark

2021

There are some localities in the Bohemian Paradise Geopark that suffer from temporal overtourism in the high season. On the other hand, more than half of the geopark is not so often visited by tourists, although very attractive geosites can be found there too. In the most visited localities, nature is damaged due to overloading of the tourist infrastructure, while elsewhere there is pressure driven by municipalities to increase the number of tourists. For this reason, we organized a large questionnaire survey in summer 2020, which aimed to reveal the motivation of visitors of the geopark and their preferences regarding the places visited. The questionnaire combined several research methods:…