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排序方式: 共有161条查询结果,搜索用时 78 毫秒
91.
De Sabato Luca Amoroso Maria Grazia Ianiro Giovanni Esposito Claudia De Grossi Luigi Fusco Giovanna Barone Antonino Martini Enrica Ostanello Fabio Di Bartolo Ilaria 《Food and environmental virology》2020,12(1):1-8
Food and Environmental Virology - In industrialized countries, hepatitis E is now recognized as an emerging zoonosis. Autochthonous cases have been increased over recent years in Europe and are... 相似文献
92.
Environmental distribution of uranium and other trace elements at selected Kosovo sites 总被引:1,自引:0,他引:1
This paper reports the results of a study using lichens as biomonitors to investigate the environmental distribution of uranium and other trace elements at selected Kosovo sites. The results suggested that the use of depleted uranium (DU) ammunitions in Kosovo did not cause a diffuse environmental contamination in such a way to have caused a detectable U enrichment in lichens. Also isotopic (235)U/(238)U measurements did not indicate the presence of DU particles in lichens. The present results also provided no indication of intense environmental contamination by the other trace elements analyzed, with the exception of Kosovska Mitrovica, where a diffuse environmental contamination by several heavy elements such as Pb, Zn, As and Cd was found. 相似文献
93.
94.
Environment Systems and Decisions - Functional dependencies in complex technical infrastructures can cause unexpected cascades of failures, with major consequences on availability. For this reason,... 相似文献
95.
Raffaele Sasso Luigi Iodice Christine M. Woodcock John A. Pickett Emilio Guerrieri 《Chemoecology》2009,19(4):195-201
Flight responses of the aphid parasitoid Aphidius ervi to tomato volatiles have recently demonstrated that different plant stresses can lead to increases in attractiveness for
this parasitoid. For example, infestation of tomato plants by the aphid Macrosiphum euphorbiae results in the overexpression of defensive genes, as well as the release of volatile compounds that attract aphid parasitoids.
Here, we determine which of the induced compounds elicit a significant electrophysiological response from parasitoid antennae.
Compounds shown to be detected at the antennal level were then tested at a range of doses in a wind tunnel assay. A significant
electroantennogram response was demonstrated for three compounds, (8S,9R)-(E)-caryophyllene, methyl salicylate, and (Z)-3-hexen-1-ol, over four concentrations. These compounds proved to be significantly attractive in the wind tunnel at a rate
not always proportionally dependent upon the dose. The practical implications of these findings are discussed in the framework
of sustainable control for pest aphids in agriculture. 相似文献
96.
Environmental Economics and Policy Studies - This paper examines both theoretically and empirically the link between pro-social behaviours, individual attitudes regarding waste prevention and... 相似文献
97.
The main aim of the present work is to discuss the methodological approaches that underpin the “contaminant migration–population effects” models for the evaluation of the detriment to populations of moving organisms in environmental systems with spatial and time dependent pollution levels. A technique to couple the equations controlling the population dynamics and the pollutant dispersion is described and discussed. The domain of application and the limitations of the methodology are analysed and illustrated by some examples. Possible alternative approaches are briefly presented. 相似文献
98.
Recent events in the nuclear industry have blamed a declining safety culture both on the utility and regulatory side as the major responsible. Confidence in the nuclear industry can be dramatically affected by such events. In this context, the present paper analyses a recent crisis event that involved a research reactor. It shows the time history of the event and how its escalation brought to a temporary shut down of the reactor. In-depth analysis of the event pointed out safety culture deficiencies within the organization. The paper presents the key elements in the ensuing organizational change process and describes the different phases (short and long term approaches), players and measures involved in the process that the organisation set up to address deficiencies and improve safety culture. The case represents an interesting example from which important lessons can be learnt. In particular, staff motivation in terms of involvement in improvement activities is considered central in managing safety. 相似文献
99.
Piero Esposito Fabrzio Patriarca Luigi Perini Luca Salvati 《Environment, Development and Sustainability》2016,18(2):431-448
The present study investigates the relationship between land degradation and the evolution of the productive structure in Italy during the last 50 years (1960–2010). The objectives of the study are twofold: (i) to present and discuss an original analysis of the income–environment relationship in an economic-convergent and environmental–divergent country and (ii) to evaluate the impact of the (changing) productive structure and selected socio-demographic characteristics on the level of land vulnerability. The econometric analysis indicates that the relationship between GDP and land degradation across Italian provinces is completely reverted once we move from a cross-sectional analysis to panel estimates. While economic and environmental disparities between provinces go in the same direction, with richer provinces having lower levels of LD, over time the growth process increases LD with the economic structure acting as a significant variable. 相似文献
100.
Mattia Cesa Pier Luigi Nimis Clara Buora Alberta Lorenzonetto Alessandro Pozzobon Marina Raris Maria Rosa Michela Salvadori 《Environmental science and pollution research international》2014,21(10):6714-6722
An equation to estimate Hg concentrations of <4 μg/L in groundwaters of a polluted area in NE Italy was set out by using transplants of the aquatic moss Rhynchostegium riparioides as trace element bioaccumulators. The equation is derived from a previous mathematical model which was implemented under laboratory conditions. The work aimed at (1) checking the compliance of the uptake kinetics with the model, (2) improving/adapting the model for groundwater monitoring, (3) comparing the performances of two populations of moss collected from different sites, and (4) assessing the environmental impact of Hg contamination on a small river. The main factors affecting Hg uptake in the field were—as expected—water concentration and time of exposure, even though the uptake kinetics in the field were slightly different from those which were previously observed in the lab, since the redox environmental conditions influence the solubility of cationic Fe, which is a negative competitor of Hg2+. The equation was improved by including the variable ‘dissolved oxygen concentration’. A numerical parameter depending on the moss collection site was also provided, since the differences in uptake efficiency were observed between the two populations tested. Predicted Hg concentrations well fitted the values measured in situ (approximately ±50 %), while a notable underestimation was observed when the equation was used to predict Hg concentration in a neighbouring river (?96 %), probably due to the organic pollution which hampers metal uptake by mosses. 相似文献