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121.
122.
Greige-Gerges Hélène Gerges Petra Lichtfouse Jeanne Lichtfouse Eric Fourmentin Sophie 《Environmental Chemistry Letters》2023,21(2):627-632
Environmental Chemistry Letters - 相似文献
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124.
Sophie?E.?F.?EvisonEmail author Katie?A.?Webster William?O.?H.?Hughes 《Behavioral ecology and sociobiology》2012,66(5):711-720
Animals frequently have to decide between alternative resources and in social insects these individual choices produce a colony-level
decision. The choice of nest site is a particularly critical decision for a social insect colony to make, but the decision
making process has still only been studied in a few species. In this study, we investigated nest selection by the Pharaoh’s
ant, Monomorium pharaonis, a species renowned for its propensity to migrate and its use of multi-component trail pheromones to organise decision-making
in other contexts. When presented with the choice of familiar and novel nests of equal quality in a Y set-up, colonies preferentially
migrated towards the familiar nest, suggesting a form of colony-level ‘memory’ of potential nest sites. However, if the novel
nest was superior to the familiar nest, then colonies began migrating initially to the familiar nest, but then redirected
their migration to the superior quality novel nest. This may be an effective method of reducing colony exposure while searching
for an optimum nest site. Branches that had previously led to a selected nest were attractive to ants in subsequent migrations,
suggesting that trail pheromones mediate the decision making process. The adaptive, pheromone-based organisation of nest-site
selection by Pharaoh’s ants matches their ephemeral environment and is likely to contribute to their success as a 'tramp'
species. 相似文献
125.
Miriana?Kfoury Mireille?Borgie Anthony?Verdin Frédéric?Ledoux Dominique?Courcot Lizette?Auezova Sophie?FourmentinEmail authorView authors OrcID profile 《Environmental Chemistry Letters》2016,14(3):345-351
Outdoor air pollution and fine particulate matter (PM) were recently classified as carcinogenic to humans by the International Agency for Research on Cancer. The exposure to airborne particulate matter also contributes to cardiovascular and respiratory diseases, which are major public health concerns. Up to now, no work has evaluated the ability of essential oils as an alternative medicine to relieve the adverse health effects caused by airborne particulate matter. Here, we investigated for the first time the effects of four essential oil components, trans-anethole, estragole, eugenol and isoeugenol, on the reduction in inflammation induced by particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5), in human bronchial epithelial (BEAS-2B) and human liver carcinoma (HepG2) cell lines. Anethole is a flavor component of anise and fennel, estragole is occurring in basil, eugenol occurs in clove bud oil and isoeugenol occurs in ylang-ylang. Essential oil components were tested either as free or hydroxypropyl-β-cyclodextrin-encapsulated forms. Control experiments showed that particulate matter (PM2.5) induced inflammation by secretion of pro-inflammatory cytokines IL-6 and IL-8. Our results show that the addition of either free or encapsulated essential oil components to particulate matter exposed cells decreased up to 96 % the cytokine IL-6 level, and by up to 87 % the cytokine IL-8 level. Overall our findings evidence for the first time that natural essential oil components counteract the inflammatory effects of particulate matter and that encapsulation in cyclodextrins preserved their properties. 相似文献
126.
Anne-Mathilde Thierry Sophie Brajon Marion Spée Thierry Raclot 《Behavioral ecology and sociobiology》2014,68(5):721-732
Glucocorticoid hormones (GCs) are important mediators of physiological and behavioral responses to stress. While many studies have evaluated the environmental, behavioral, or physiological correlates of GCs and their effects on reproductive performances, further work is needed to clarify the relationship between GCs and fitness. Assessing the effects of increased GC levels on specific behaviors of breeding animals should improve our understanding of how GCs affect parental care. In this experimental study, we measured the effects of an experimental increase in corticosterone (CORT, the main avian GC) levels on the behavior of free-living male Adélie penguins (Pygoscelis adeliae) within the colony, their reproductive output, and the indirect consequences of both on the behavior of their partners. We show that increased CORT levels in males decreased their foraging time at sea while increased their attendance at the nest, although their attentiveness toward the nest itself decreased. In addition, treated males spent more time on comfort behaviors (e.g., preening), vocalizing, and engaging in positive social interactions relative to controls. Treatment further affected the behavior of their partners, but not chick begging and feeding rates. Penguins with increased CORT levels also exhibited decreased reproductive output. Previous studies of Adélie penguins in different life history stages and environmental conditions suggest that the consequences of CORT treatment on reproductive performance are context-dependent. In addition to the potential delay in the effects of increased CORT levels on reproduction, this context dependence should be taken into account when studying the behavior of free-living animals in relation to stress-inducing situations. 相似文献
127.
Synthesis of silica materials containing cyclodextrin and their applications in wastewater treatment
Morin-Crini Nadia Fourmentin Marc Fourmentin Sophie Torri Giangiacomo Crini Grégorio 《Environmental Chemistry Letters》2019,17(2):683-696
Environmental Chemistry Letters - Cyclodextrin-functionalized silica networks are advanced adsorbents for environmental applications. Silica-based adsorbents are low-cost and robust... 相似文献
128.
Many different approaches for national sustainable development strategies (NSDS) have been proposed since 1992, with some components common to all. A country's national strategy should be designed to help mainstream environmental concerns into policy. More broadly, it should coordinate local policy with global concerns, as well as integrate scientific knowledge into policy and development planning. The peer review mechanism for national strategies was piloted by France, and also involved representatives of countries from the North and the South as well as stakeholders. The peer review process allows countries to share their experience and information, and can assist them in identifying their own path to sustainable development. The business community can also contribute to sustainable development through provision of local and global public goods. Another input to sustainable development could come from the International Organization for Standardization (ISO) and its Guidance Standard on Social Responsibility (ISO 26000), as a coordinating mechanism between voluntary initiatives and binding obligations (such as international conventions). ISO standards and guidelines should therefore be integrated with national sustainable development strategies and local Agenda 21 frameworks. 相似文献
129.
Sophie RyserNicole Rindlisbacher Martin U. GrüeblerEva Knop 《Agriculture, ecosystems & environment》2011,144(1):302-307
Individual marking by using transponders represents a promising tool to further investigate causes of population trends of farmland invertebrates and the dynamics of farmland biodiversity. Once common in agricultural fields the slug Arion rufus is now restricted to forests, whereas the closely related and similar Arion lusitanicus recently built up high populations. Here, it was tested whether (1) transponder tagging combined with artificial shelters for recapturing is a suitable approach for quantifying adult survival of farmland gastropods under real field conditions, (2) whether captive bred and wild A. lusitanicus differ in survival, and (3) whether in agricultural fields the declining slug A. rufus shows reduced survival rates compared to the invasive slug A. lusitanicus. One hundred and thirty transponder-tagged slugs were released and individual-based mark-recapture models were performed. Individual marking by using transponders proved to be a successful method for quantifying survival rates of the slugs. The favoured model showed no differences in survival or encounter rates between captive bred and wild A. lusitanicus. A. rufus showed significantly reduced survival rates compared to A. lusitanicus coinciding with their population trends in farmland areas. This might be due to differential susceptibility to habitat degradation, differential predation rates or promotion of the invasive competitor species. A further decrease of A. rufus in agricultural landscapes is expected. 相似文献
130.
Hanxiang Wu Sophie Marhadour Zhi-Wei Lei Wen Yang Cécile Marivingt-Mounir Jean-Louis Bonnemain Jean-François Chollet 《Environmental science and pollution research international》2018,25(15):14336-14349
Producing quality food in sufficient quantity while using less agrochemical inputs will be one of the great challenges of the twenty-first century. One way of achieving this goal is to greatly reduce the doses of plant protection compounds by improving the targeting of pests to eradicate. Therefore, we developed a vectorization strategy to confer phloem mobility to fenpiclonil, a contact fungicide from the phenylpyrrole family used as a model molecule. It consists in coupling the antifungal compound to an amino acid or a sugar, so that the resulting conjugates are handled by active nutrient transport systems. The method of click chemistry was used to synthesize three conjugates combining fenpiclonil to glucose or glutamic acid with a spacer containing a triazole ring. Systemicity tests with the Ricinus model have shown that the amino acid promoiety was clearly more favorable to phloem mobility than that of glucose. In addition, the transport of the amino acid conjugate is carrier mediated since the derivative of the L series was about five times more concentrated in the phloem sap than its counterpart of the D series. The systemicity of the L-derivative is pH dependent and almost completely inhibited by the protonophore carbonyl cyanide 3-chlorophenylhydrazone (CCCP). These data suggest that the phloem transport of the L-derivative is governed by a stereospecific amino acid carrier system energized by the proton motive force. 相似文献