Résultats de recherche
Nombre de programmes trouvés : 9452
Vidéocours
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(10m23s)
EN-5. Soil biodiversity
With Etienne Hainzelin and Eric Blanchart, we will discover the third biotic boundary: the soils. They give several data regarding their important biodiversity, and they relate this biodiversity with the good functioning of the agroecosystems.
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Vidéocours
le
(12m1s)
EN-6. Pests and diseases
Etienne Hainzelin and Alain Ratnadass take an interest in pests and diseases. It can be defined as the part of the biodiversity which goes against the production. They evidence the paradigm of eradication, still important today, but taking the risks linked to the use of pesticides into account, they examine how the biodiversity can fight those pests and diseases.
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Vidéocours
le
(6m24s)
EN-7. Agroecology
On the basis of the issues linked to the worldwide agricultural activity, Etienne Hainzelin explores the approach of the agroecology, especially the ecological intensification of the farming systems. He shows the interest of keeping the ecological services of the environments, but also all the issues of knowledge and research linked to this transformation.
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Vidéocours
le
(4m24s)
Biodiversity and health - Introduction
Bernard Swynghedauw explores with us a still quite unknown biodiversity, which plays an essential role for our development: the microbiota. It consists of all the microorganisms living in our organism, which can be indispensable for our "good health" or, on the contrary, harmful.
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Vidéocours
le
(8m31s)
EN-1. Health and biodiversity: what links
Bernard Swynghedauw defines the biodiversity, the health, and the disease. He evidences the importance of the environmental and / or genetic factors in the appearance of diseases. He also links the socioeconomic evolution of countries and the evolution of the public health issues.
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Vidéocours
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(8m26s)
EN-2. The most biodiversity-related elements to health
Bernard Swynghedauw presents the main groups of living organisms (prokaryotes, eukaryotes, virus), and evokes the link between this biodiversity and the health, insisting on two aspects: the dilution effect and the atopy.
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Vidéocours
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(8m21s)
EN-3. The microbiota we host: a limited but specific ecosystem
Bernard Swynghedauw comes back to the microbiota we host, that is the bacterial life we coexist and coevolve with. He evidences its distribution inside our organism, some factors which are responsible for its evolution, and he evokes its relation with several kinds of illnesses.
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Vidéocours
le
(14m2s)
EN-4. Microbial biodiversity changes caused by human activity
Bernard Swynghedauw talks about the microbial biodiversity. He first defines it, then he highlights the changes which affect it, related to the human activities. He also brings us data regarding the consequences on the climate change of those microbial dynamics.
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Vidéocours
le
(7m13s)
EN-5. The new medical landscape, emerging risks and diseases
Bernard Swynghedauw proposes an overview of the epidemiological transitions over the last centuries, with a decrease of the mortality linked to the infections, and an increase of the mortality linked to the chronic non-communicable diseases. This is a radical change of the medical landscape.
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Vidéocours
le
(11m31s)
EN-6. Emerging risks and diseases
Bernard Swynghedauw proposes an overview of the new medical landscape, marked by the emergence of several risks and diseases. He especially explores the age, the infectious risk and the immune risk, and underlines the necessity to take into account different factors to explain the public health issues.
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