Search results for "Adapta"

Design of a customized pattern for improving color constancy across camera and illumination changes

2010

International audience; This paper adresses the problem of color constancy on a large image database acquired with varying digital cameras and lighting conditions. Automatic white balance control proposed by an available commercial camera is not sufficient to provide reproducible color classification. A device-independent color representation may be obtained by applying a chromatic adaptation transform, from a calibrated color checker pattern included in the field of view. Instead of using the standard Macbeth color checker, we suggest to select judicious colors to design a customized pattern from contextual information. A comparative study demonstrates that this approach insures a stronger…

Le changement climatique : où en sommes-nous ?

2018

Greenhouse gases (GHGs), naturally part of the atmosphere, have protected us from severe glaciations in the past. Today, human activities increase GHG concentrations and cause rapid and unprecedented Earth warming. Climate change is not resume only to warming, water cycle is also changed. All the research confirms: the climate is changing fast, too fast for ecosystems and societies to adapt. Despite the alerts of the international scientific community, States gathered into Conferences of the Parties (COP) ratify agreements but do not comply with all their commitments. Public opinion polls indicate that climate change is perceived as a risk, but jobs and taxes override environmental concerns…

Assessing the profitability and feasibility of climate-smart agriculture investment in Southern Malawi

2021

Building resilient food supply chains for the future

2015

This article has no abstract. nonPeerReviewed

An Epigenetic Alphabet of Crop Adaptation to Climate Change

2022

Crop adaptation to climate change is in a part attributed to epigenetic mechanisms which are related to response to abiotic and biotic stresses. Although recent studies increased our knowledge on the nature of these mechanisms, epigenetics remains under-investigated and still poorly understood in many, especially non-model, plants, Epigenetic modifications are traditionally divided into two main groups, DNA methylation and histone modifications that lead to chromatin remodeling and the regulation of genome functioning. In this review, we outline the most recent and interesting findings on crop epigenetic responses to the environmental cues that are most relevant to climate change. In additi…

Climate Change Adaptation and Food Supply Chain Management : An overview

2015

This article has no abstract. nonPeerReviewed

Climate change, vulnerability and the local adaptation strategies of food enterprises in Finland

2015

This chapter discusses vulnerability and the adaptation strategies of Finnish food supply chains in the context of climate change. A case study was conducted in 2012 within three Finnish regions. The people interviewed were food entrepreneurs, the managers of food enterprises and relevant stakeholders. According to the study, food enterprises seem to trust local and decentralised food supply chains as an adaptation strategy for combating climate change. Hence, the case study discusses the benefits and learning challenges of food supply chain localisation and introduces the idea of food supply chains that react proactively to climate change issues. nonPeerReviewed

Climate variability, innovation and firm performance: evidence from the European agricultural sector

2021

Abstract It is generally accepted that adaptation to climate variability requires a technological advancement strategy. However, the innovation process has received little explicit consideration in this framework. We employ a panel endogenous switching regression model to explore whether and to what extent climate variability affects firm performance through the ability to induce the development of adaptation innovations in key resource-based sectors in Europe during the period 2007–2017. Our findings confirm that the knowledge generation process at the heart of climate change adaptation technologies enhances firm performance, especially for firms in the aquaculture and fishing sub-sectors …

Convergent Morphological Evolution in Silene Sect. Italicae (Caryophyllaceae) in the Mediterranean Basin

2022

Recent divergence can obscure species boundaries among closely related taxa. Silene section Italicae (Caryophyllaceae) has been taxonomically controversial, with about 30 species described. We investigate species delimitation within this section using 500 specimens sequenced for one nuclear and two plastid markers. Despite the use of a small number of genes, the large number of sequenced samples allowed confident delimitation of 50% of the species. The delimitation of other species (e.g., Silene nemoralis, S. nodulosa and S. andryalifolia) was more challenging. We confirmed that seven of the ten chasmophyte species in the section are not related to each other but are, instead, genetically c…

Affective, Social, and Cognitive Outcomes During a 1-Year Wintering in Concordia

2016

International audience; This study investigated time patterns and the relationships between perceived stress, recovery, control, attention lapses, and defense mechanisms (DM) during a 12-month wintering in Concordia polar station with an international crew of 14 volunteers. This ICE (Isolated, Confined, Extreme) environment induced some stress, mainly in the social dimension and showed relationships (a) between DM and both stress and recovery and (b) between recovery and perceived control, highlighting the roles of DM and control in psychological adaptation. These results offer additional insights into the affective, social, and cognitive processes involved in adaptation. The findings sugge…