808 research outputs found
Sort by
The customer’s preference in light cannabis: an Italian perspective
No full textNowadays, the light hemp is promoted by different stakeholders and the customer’s preference due to the different use of crop products. The aim of this chapter was to discuss the Italian perspectives concerning the utilization of light hemp connected to customer’s preferences. It is discussed the sustainability of hemp crop to produce wellness products in Italy. It is applied as a cost model based on empirical data from hemp farmers. Customers’ preferences on light cannabis wellness products are analyzed through an online survey in Italy and other six European countries. A general misunderstanding about the differences between psychoactive hemp and nonpsychoactive hemp (light cannabis) makes the demand unstable. Light hemp business in Italy is new and there are a few studies that help entrepreneurs in assessing the attractiveness of certain investment analyzing the demand for such a product. Demand for CBD-based products indicates interest, but customers’ confusion highlights a lack of regulation and transparency about CBD-cannabis.4n
Influence of the ventilation strategy on the respiratory droplets dispersion inside a coach bus: CFD approach
No full textThe airborne transmission of the COVID-19 virus was considered the main cause of infection. The increasing concern about the virus spread in confined spaces, characterized by high crowding indexes and an often-inadequate air exchange system, pushes the scientific community to the design of many studies aimed at improving indoor air quality. The risk of transmission depends on several factors such as droplet properties, virus characteristics, and indoor airflow patterns. The main transmission route of the SARS-CoV-2 virus to humans is the respiratory route through small (<100 μm) and large droplets. In an indoor environment, the air exchange plays a fundamental role on the dispersion of the droplets. In this study, an integrated approach was developed to evaluate the influence of the ventilation strategy on the dispersion of respiratory droplets emitted inside a coach bus. There are no specific guidelines and standards on the air exchange rate (AER) values to be respected in indoor environments such as coach buses. The aim of this work is to analyse the influence of ventilation strategy on the respiratory droplet concentration and distribution emitted in a coach bus. Ansys FLUENT was used to numerically solve the well-known transient Navier-Stokes equations (URANS equations), the energy equation and using the Lagrangian Discrete Phase Model (DPM) approach to construct the droplet trajectories. The geometry is representative of an intercity bus, a vehicle constructed exclusively for the carriage of seated passengers. The 3D CAD model represented a coach bus with an HVAC system, within which an infected subject was present. The positions of exhaust vents and air-conditioning vents were chosen to ensure complete air circulation throughout the bus. The infected subject emitted droplets with a well-defined size distribution and mass through the mouth. The air exchange is provided in two different ways: general ventilation (from air intakes positioned along the bus windows and top side of central corridor) and personal ventilation (with air intakes for each passenger). For the general ventilation a single AER value was set (0.3 m3 s-1). The first results obtained showed a slight particle dispersion in the computational domain due to the airflow rate entered through the HVAC system, but a still elevated level of particle concentration tended to accumulate on the area near to infected subject. Additional analysis was executed to evaluate the beneficial effects linked to further addition of airflow through personal air-conditioning vents placed above every passenger's head. The results show the importance of the use of the ventilation system inside a coach bus, highlighting how the contribution linked to of the personal air exchange rate can lead to a significant reduction of droplet concentration exposure and consequently a reduction of the risk of infection from airborne diseases
Researches at the Monte Abatone necropolis (Cerveteri)
Full text linkThe Authors illustrate the ‘Monte Abatone Project’, focusing on the important necropolis
South of the ancient city of Caere. The area in its archaeological and topographical
features was not further studied since the geophysical campaigns (1957-1961) by the Lerici
Foundation. The main focus is the large area around the Campana Tumulus, previously left
unexplored in the large plan by the Lerici Foundation. Excavations in 2018-2021 on the South
side of this area led, conversely, to discover a possible ‘family’ cluster of tombs, dating to at
least between the early Orientalizing and the early/middle Archaic period: these tombs were
of fossa, semi-constructed, single-chamber and C2 types. Also, further unknown sectors of
the necropolis were found not far from this cluster, with a concentration of tombs of the early
semi-constructed type (first half of VII cent. BCE), provided with small tumuli, ordered in
two approximatively parallel rows and all oriented North-West. This suggests the existence
of a planning by some form of ‘urban’ authority, at a time – beginning with the Early Orientalizing
period − that marked a considerable acceleration in the economic growth of the city
and its civil-political structure. The area West and North of the Campana Tumulus was also
investigated, including surveying the edges of the plateau that led to the identification of tombs
(VI-III cent. BCE) excavated in the past and partially backfilled, and terraces for funerary rites
which are oriented, like the Tumulus, toward the city plateau. Extensive use of laser scanning
and photogrammetry allowed to produce a model of the Monte Abatone plateau, a 3D model
of both the Campana Tumulus, never surveyed since the first half of the nineteenth century,
and other excavated tombs.19s
E 42: l'arte nella costruzione della "città della rappresentazione"
No full textPer l'Esposizione Universale di Roma 1942 il programma artistico destinato agli esterni degli edifici e all'articolazione dell'assetto urbanistico, doveva essere il centro motore del sistema di "rappresentazioni" che la scena avrebbe dovuto ospitare.rivista classe A per settore concorsuale Area 0
Special Issue - Food Loss and Waste Management during COVID-19: Exploring the Major Challenges and Future Directions along the Food Supply Chain
No full textn
Household Consumption and Food Insecurity in Mexico: Covid19 and Sustainable Development
No full textAttaining a lower level of food insecurity is crucial for developing countries as its consequences spread wide and deep into specific communities. Covid-19 has magnified the adverse effects of several problems worldwide, including food security. This study investigates the Mexican Households' four food security thresholds using the 2018 and 2020 waves of the National Household Income and Expenditure Survey (ENIGH), which contains the Latin American and Caribbean Food Security Scale (ELCSA). In this research, we assess the differences in the four food security categories with reference to both individual and household variables as well as contextual factors.2s
Fertilizer Source Affects Crop Yield Under Different Tillage Practices: A Meta-analysis.
No full text6s
Industrial accidents: The mediating effect of corporate social responsibility and environmental policy measures
No full text
Social interaction in the elementary classroom. Teaching with objects as a pathway to knowledge and self-knowledge
No full textJoint entry further to the following message:
Dear MSCA fellow / alumna / alumnus,
Today, we are reaching out to you with exciting new ways to communicate your research to pupils and teachers across Europe.
First, we are happy to announce that Science is Wonderful! is back and ready to connect your research to schools near and far. Science is Wonderful! bridges research with schools across the European Union. It celebrates the value and impact of EU-funded research by giving primary and secondary school students the chance to interact with leading researchers and innovators, learn more about their work in engaging formats and ask questions about scientific careers. Since its inception in 2015, Science is Wonderful! has organised an annual science fair that interactively showcases research projects and innovations through presentations, hands-on experiments, games and quizzes.
There are two ways to participate:
(a) You can register for our Science is Wonderful! online competition until 1 December: https://www.scienceiswonderful.eu/competition
This competition will give you a chance to get to find and know a primary or secondary school teacher eager to turn your research into an interactive learning resource for their pupils. Match with a teacher, develop a project proposal together, submit it and get famous! The best proposals will be professionally developed and promoted by the European Commission. Plus there are other small prizes in store, so make sure to register today but no later than 1 December.
(b) You can apply to showcase your research at the Science is Wonderful! fair in March 2023: https://ec.europa.eu/eusurvey/runner/SIWScienceFair2023
On 16-17 March 2023, the European Commission will invite MSCA researchers and alumni to come to Brussels once more and present their research through fun, interactive experiments, games or quizzes to pupils from Brussels and its surroundings. We are expecting up to 5 000 young curious mind, so do not miss out on this opportunity to meet the next generation and share your passion for with them. The European Commission will cover all travel and accommodation costs for you and a colleague. So make sure to submit your proposal no later than 1 December.
Additionally, we encourage you to get involved in the newly launched initiative Researchers at Schools. Linked to the European Researchers’ Night, these projects bring the wonders of science directly to schools – and pupils to the labs! This initiative will allow 2 400 primary and secondary schools and 225 000 pupils in several countries to discover researchers’ work through presentations, hands-on experiments, visits to labs, games, discussions and role-playing. Would you like to take part? Then check out the list of projects taking place all over Europe and get in touch with the organisers.
We hope that you will take part and strengthen the bonds between research and education.
Should you have any questions, please, do not hesitate to get in touch through [email protected]