Search results for "sol"
showing 10 items of 23782 documents
Étude et modélisation des impacts des pratiques agricoles sur la dynamique de la distribution des communautés microbiennes des sols à l’échelle du pa…
2021
National audience; Les micro-organismes telluriques, de par leur abondance et leur richesse, jouent un rôle centraldans le fonctionnement des écosystèmes et sont des bioindicateurs intéressants pour évaluerl’impact des pratiques agricoles sur la qualité des sols. L’enjeu est de favoriser leur utilisationpour accompagner l’innovation dans le monde agricole. Cette thèse a pour objectif de permettreune meilleure compréhension des dynamiques spatiales et temporelles des communautésmicrobiennes du sol à l’échelle du paysage. Pour cela, nous proposons de modéliser cesdynamiques et de partager les connaissances aux acteurs du monde agricole via un OAD (outild’aide à la décision). Le paysage de Fén…
La résilience de l’érosion du sol en réponse à l’évolution des occupations culturales du sol en contexte viticole (Monthelie, Côte de Beaune)
2011
National audience; Les événements naturels extrêmes sont à l’origine de l’essentiel du transfert de matière observé sur les versants. Outre des enjeux sociétaux et économiques, ces événements peuvent également avoir des répercussions environnementales et culturales irréversibles en modifiant les répartitions spatiales des surfaces cultivables, en affectant aussi bien quantitativement que qualitativement les sols de ces versants. Il apparaît donc essentiel de comprendre, quantifier et prévoir les transferts de matière sur les versants en réponse à des événements naturels extrêmes.Parmi les différents contextes agricoles, les versants viticoles sont reconnus comme des versants particulièremen…
Cała prawda i tylko prawda
2016
Combining hyperspectral UAV and multispectral Formosat-2 imagery for precision agriculture applications
2014
Remote sensing is a key tool for precision agriculture applications as it is capable of capturing spatial and temporal variations in crop status. However, satellites often have an inadequate spatial resolution for precision agriculture applications. High-resolution Unmanned Aerial Vehicles (UAV) imagery can be obtained at flexible dates, but operational costs may limit the collection frequency. The current study utilizes data fusion to create a dataset which benefits from the temporal resolution of Formosat-2 imagery and the spatial resolution of UAV imagery with the purpose of monitoring crop growth in a potato field. The correlation of the Weighted Difference Vegetation Index (WDVI) from …
Trasplante autólogo de médula ósea en ovario en mujeres con baja reserva ovárica y fallo ovárico precoz, para rejuvenecimiento del nicho ovárico y fa…
2020
Como consecuencia del retraso de la maternidad a causa de las tendencias sociales actuales, existe una disminución de la calidad y cantidad de ovocitos disponibles. Al problema fisiológico de la edad materna avanzada, se suman dos patologías, que asocian una baja reserva ovárica, en pacientes jóvenes: baja respuesta ovárica (del inglés, poor ovarian response, o POR), e insuficiencia ovárica prematura(del inglés, premature ovarian insufficiency o POI). Numerosos protocolos de estimulación ovárica han sido desarrollados, sin ser efectivos, siendo en la mayoría de los casos, la única opción para estas pacientes la donación de ovocitos/embriones. Varios trabajos de investigación han descrito la…
Preoperative Anemia and Iron Deficiency Screening, Evaluation and Management: Barrier Identification and Implementation Strategy Mapping
2020
Alana Delaforce,1,2 Jed Duff,1,3 Judy Munday,3,4 Janet Hardy2 1School of Nursing and Midwifery, The University of Newcastle, Callaghan, NSW, Australia; 2Mater Health Services, South Brisbane, QLD 4101, Australia; 3School of Nursing/Centre for Healthcare Transformation, Queensland University of Technology, Kelvin Grove, QLD, Australia; 4School of Nursing, The University of Agder, Kristiansand, NorwayCorrespondence: Alana Delaforce Email alana.delaforce@mater.org.auIntroduction and aims: Patients undergoing major surgery risk significant blood loss and transfusion, which increases substantially if they have pre-existing anemia. Preoperative Anemia and Iron Deficiency Screening, Evaluation and…
Preču zīmes reģistrācijas absolūtie atteikuma pamati.
2021
Pieaugot preču zīmju nozīmei, aktualizējas arī dažnedažādi problēmjautājumi, kas saistīti ar to reģistrāciju, tāpēc ir ļoti būtiski rast risinājumus un izprast, kad un kā reģistrējama preču zīme un kādi ir ierobežojumi. Autors darbā analizē absolūtos reģistrācijas atteikuma pamatus, kas atbild par preču zīmes funkciju un aizsargā sabiedrības intereses. Lai arī sākotnēji varētu domāt, ka tie ir skaidri noformulēti, tomēr, piemērojot tos praksē, rodas neskaidrības un atšķirīga interpretācija starp Patentu valdi un Eiropas Savienības intelektuālā īpašuma biroju. Tādējādi autors darbā centīsies aktualizēt būtiskākās nianses, sniedzot arī savus secinājumus un ieteikumus, lai uzlabotu absolūto pa…
Influence of microbial diversity on soil organic carbon dynamics highlighted by a 13C-labelling technique
2012
Soil organic matter (SOM) represents the main pool of carbon within the biosphere, estimated at roughly twice that in atmospheric CO2. In agrosystems, organic amendments are common to maintain soil C stocks. However, recent studies have revealed that these practices can lead to a priming effect, corresponding to enhanced release of CO2 into the atmosphere, due to over-mineralisation of soil organic carbon. Therefore, appropriate decisions regarding organic input management require better understanding of the biogeochemical cycles related to SOM dynamics. As soil microorganisms are major actors in SOM turnover, their diversity is likely to influence SOM dynamics. In this context, the relatio…
Soil microbial networks: what is the relationship with plants?
2020
International audience; Since a long time, the interactions between soil microbes and plant roots are intensively investigated to decipher the role of microorganisms in the growth and the maintenance of plants in a multitude of environmental conditions as climatic stress, agricultural practices or pathogenic/parasitic invasions. Beyond their intimate relationships, the soil microbial communities influence and are influenced by the aboveground vegetation. The interaction/co-occurrence networks are a relatively new look on the soil microbial communities. This look integrates the most comprehensively the community complexity, provides a more complete information on the community and seems to b…
UInDeSI4.0 : An efficient Unsupervised Intrusion Detection System for network traffic flow in Industry 4.0 ecosystem
2023
In an Industry 4.0 ecosystem, all the essential components are digitally interconnected, and automation is integrated for higher productivity. However, it invites the risk of increasing cyber-attacks amid the current cyber explosion. The identification and monitoring of these malicious cyber-attacks and intrusions need efficient threat intelligence techniques or intrusion detection systems (IDSs). Reducing the false positive rate in detecting cyber threats is an important step for a safer and reliable environment in any industrial ecosystem. Available approaches for intrusion detection often suffer from high computational costs due to large number of feature instances. Therefore, this paper…