Search results for "conte"

Diuron mineralisation in a Mediterranean vineyard soil: impact of moisture content and temperature

2010

BACKGROUND: The diuron-mineralising ability of the microbiota of a Mediterranean vineyard soil exposed each year to this herbicide was measured. The impact of soil moisture and temperature on this microbial activity was assessed. RESULTS: The soil microbiota was shown to mineralise diuron. This mineralising activity was positively correlated with soil moisture content, being negligible at 5% and more than 30% at 20% soil moisture content. According to a double Gaussian model applied to fit the dataset, the optimum temperature/soil moisture conditions were 27.9 °C/19.3% for maximum mineralisation rate and 21.9 °C/18.3% for maximum percentage mineralisation. The impact of temperature and soil…

Evidence for 2,4-D mineralisation in Mediterranean soils: impact of moisture content and temperature

2009

BACKGROUND: The 2,4-D degradation ability of the microbiota of three arable Mediterranean soils was estimated. The impact of soil moisture and temperature on 2,4-D degradation was investigated. RESULTS: The microbiota of the three soils regularly exposed to 2,4-D were able rapidly to mineralise this herbicide. The half-life of 2,4-D ranged from 8 to 30 days, and maximum mineralisation of 14C-2,4-D ranged from 57 to 71%. Extractable 14C-2,4-D and 14C-bound residues accounted for less than 1 and 15% respectively of the 14C-2,4-D initially added. The highest amounts of 14C-2,4-D bound residues were recorded in the soil with the lowest 2,4-D-mineralising ability. Although all three soils were a…

2017

Summary Objectives Neisseria meningitidis is the major cause of seasonal meningitis epidemics in the African meningitis belt. In the changing context of a reduction in incidence of serogroup A and an increase in incidence of serogroups W and C and of Streptococcus pneumoniae , a better understanding of the determinants driving the disease transmission dynamics remains crucial to improving bacterial meningitis control. Methods The literature was searched to provide a multi-disciplinary overview of the determinants of meningitis transmission dynamics in the African meningitis belt. Results Seasonal hyperendemicity is likely predominantly caused by increased invasion rates, sporadic localized …

Interpretability of Recurrent Neural Networks in Remote Sensing

2020

In this work we propose the use of Long Short-Term Memory (LSTM) Recurrent Neural Networks for multivariate time series of satellite data for crop yield estimation. Recurrent nets allow exploiting the temporal dimension efficiently, but interpretability is hampered by the typically overparameterized models. The focus of the study is to understand LSTM models by looking at the hidden units distribution, the impact of increasing network complexity, and the relative importance of the input covariates. We extracted time series of three variables describing the soil-vegetation status in agroe-cosystems -soil moisture, VOD and EVI- from optical and microwave satellites, as well as available in si…

Revisiting agricultural modernisation: Interconnected farming practices driving rural development at the farm level

2019

Abstract Rural development related to agriculture can roughly be divided into two trajectories: 1) agri-industrial development or modernisation, and 2) multifunctional or even post-productivist rural development. The role of these trajectories varies in different rural settings, with different emphases on agricultural production and its conduct. At the farm level, the trajectories evolve from existing farming practices and their connections, which enable or disable different kinds of development. However, the connections through which changes in agricultural production practices contribute to different rural development trajectories deserve further scrutiny. This is addressed with the help …

Multimodal interactions

2016

Revue; International audience; Introduction A central sensory characteristic of food is its flavor, which, most of the time, confers to a given food product its identity and typicality, and thus contribute to its liking (Prescott, 2015). Flavor has been defined as a sensory percept induced by food or beverage tasting. This holistic perception is constructed through the functional integration of information transmitted by the chemical senses: olfaction, gustation, and oral and nasal somatosensory inputs (Thomas-Danguin, 2009). Flavor may be influenced by other nonchemical sensory inputs such as texture, sound, or color (Spence, 2013). The functional integration of information transmitted by …

Hronotops A. Manfeldes romānā “Vilcēni”, A. Jundzes romānā “Sarkanais dzīvsudrabs” un J. Joņeva romānā “Jelgava 94”

2022

Maģistra darba “Hronotops A. Manfeldes romānā “Vilcēni”, A. Jundzes romānā “Sarkanais dzīvsudrabs” un J. Joņeva romānā “Jelgava 94” mērķis ir raksturot un analizēt fiktīvo romānu 20. gadsimta 90. gadu laiktelpu Latvijā un citus ar to saistītus literāros hronotopus. Darba teorētiskajā daļā sniegts hronotopa teorētiskais ieskats, ieskats semiotiskajā un naratoloģijas pētniecības metodē; aplūkota hronotopa un romāna saistība; ieskats romānu recepcijā kritikā; sniegts ieskats kultūrvēsturiskajā situācijā un pilsētas laiktelpā. Pētījuma praktiskajā daļā tiek analizēts 20. gadsimta 90. gadu hronotops romānos caur naratīvu un kā tas atklājas caur dažādām semiotiskajām zīmēm pilsētvidē.

Gender gap in Swiss vocational education and training teachers’ economics content knowledge and the role of teaching experience

2019

In the commercial sector, which is of crucial importance to the Swiss economy among other countries, a large number of apprentices are trained on a vocational education and training programme every year. Besides other subjects, the subject Economics and Society forms an integral part of the vocational education and training curriculum and serves to prepare apprentices for professional, economic and civic participation. Although content knowledge is widely considered necessary to both teaching quality and student achievement, little is known about the subject-specific content knowledge of Swiss Economics and Society teachers. As previous research has shown a gender gap in the content knowled…

An Avenue to Social Equilibrium

2021

The purpose of the second part of the third part of the book is to show how the theory translates into reality. That is why the most important factors studied in the first and second parts of the book are concluded in this chapter. The first part of the chapter is addressed to examine the personal characteristics and motivation of the social entrepreneur, that is, it is focused on the micro approach. The second part is addressed to analyze the institutional context, that is, it comprehends the macro approach. Based on this, the chapter shows the stages followed by social entrepreneurs to shift the context. The legitimation process is the base of this shift.

Materiales didácticos digitales y coronavirus en tiempos de confinamiento en el contexto español

2020

In this paper, a description and analysis of the main proposals of didactic materials that have been elaborated on COVID-19 (coronavirus) directed to a child and youth public available on the network in the Spanish context was made. In the first part of the paper we reflect on the reasons and needs that have justified the appearance and development of these resources. Subsequently, we present the search process carried out mainly through the Google search engine and the final selection of the materials considered. Next, a descriptive analysis of the materials was carried out using an elaborated ad hoc matrix that integrates 5 dimensions. As a general conclusion, we highlight the diversity o…