排序方式: 共有46条查询结果,搜索用时 875 毫秒
21.
Amoroso Maria Grazia Di Concilio Denise Langellotti Antonio Luca Martello Anna Cioffi Barbara Suffredini Elisabetta Cozzi Loredana Russo Valeria Mauriello Gianluigi Di Pasquale Simona Galiero Giorgio Fusco Giovanna 《Food and environmental virology》2021,13(3):329-336
Food and Environmental Virology - Kinetics of hepatitis A virus (HAV) accumulation and depuration from mussels (Mytilus galloprovincialis) was studied in an experimental depuration system.... 相似文献
22.
Maria Grazia Gnoni Gianni Lettera 《Journal of Loss Prevention in the Process Industries》2012,25(3):609-616
A close relationship between near-miss events and major accidents has been demonstrated in major hazard facilities: a near-miss and an accident have often common causes. A near-miss could be defined as a hazardous condition where the event sequence could lead to an accident if it had not been interrupted. An effective Near-miss Management System (NMS) aims to quickly recognize signals from the operational fields in order to apply prevention strategies. As a standard reference model has not yet been developed, the NMS design represents a complex issue. The present paper proposes a critical comparison between two methodologies which could be applied for a near-miss event assessment: a matrix and an index based method. The purpose is to evaluate potentiality and pitfalls of their application as their global efficiency could influence the whole performance of the whole NMS design. An application in a test case of a chemical plant is proposed: results obtained have proved useful in supporting safety management in an effective design of a NMS. 相似文献
23.
Ingelido AM Ballard T Dellatte E di Domenico A Ferri F Fulgenzi AR Herrmann T Iacovella N Miniero R Päpke O Porpora MG De Felip E 《Chemosphere》2007,67(9):S301-S306
The levels of selected polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) were measured in human milk samples from the areas of Venice and Rome, primarily in order to characterize the current levels of infant exposure to PCBs and PBDEs due to breast feeding in Italy. Sixteen non-dioxin-like PCBs, including the traditional indicator congeners, and 11 PBDEs, comprising the relevant PBDE-47, PBDE-99, and PBDE-153, were determined. Congeners were selected for analysis according to their relative abundance in human tissues, toxicological relevance, and diffusion in the environment. Dietary habits of the milk donors were recorded by questionnaires; mothers of the Venice area were classified into three groups according to their consumption of local fish, molluscs, and other fishery products. Sigma(16)(PCBs) and Sigma(11)(PBDEs) (ng g(-1) fat) for the areas of Venice and Rome were respectively, 250-390 and 240, and 1.6-2.8 and 4.1. An increase of fish and fishery product consumption could not be associated with an increase of PCB and PBDE levels in milk. 相似文献
24.
A spatially explicit estimate of the prewhaling abundance of the endangered North Atlantic right whale 下载免费PDF全文
Sophie Monsarrat M. Grazia Pennino Tim D. Smith Randall R. Reeves Christine N. Meynard David M. Kaplan Ana S.L. Rodrigues 《Conservation biology》2016,30(4):783-791
The North Atlantic right whale (NARW) (Eubalaena glacialis) is one of the world's most threatened whales. It came close to extinction after nearly a millennium of exploitation and currently persists as a population of only approximately 500 individuals. Setting appropriate conservation targets for this species requires an understanding of its historical population size, as a baseline for measuring levels of depletion and progress toward recovery. This is made difficult by the scarcity of records over this species’ long whaling history. We sought to estimate the preexploitation population size of the North Atlantic right whale and understand how this species was distributed across its range. We used a spatially explicit data set on historical catches of North Pacific right whales (NPRWs) (Eubalaena japonica) to model the relationship between right whale relative density and the environment during the summer feeding season. Assuming the 2 right whale species select similar environments, we projected this model to the North Atlantic to predict how the relative abundance of NARWs varied across their range. We calibrated these relative abundances with estimates of the NPRW total prewhaling population size to obtain high and low estimates for the overall NARW population size prior to exploitation. The model predicted 9,075–21,328 right whales in the North Atlantic. The current NARW population is thus <6% of the historical North Atlantic carrying capacity and has enormous potential for recovery. According to the model, in June–September NARWs concentrated in 2 main feeding areas: east of the Grand Banks of Newfoundland and in the Norwegian Sea. These 2 areas may become important in the future as feeding grounds and may already be used more regularly by this endangered species than is thought. 相似文献
25.
Stea Francesco Faita Francesco Borghini Andrea Faita Francesca Bianchi Fabrizio Bustaffa Elisa Minichilli Fabrizio Andreassi Maria Grazia Sicari Rosa 《Environmental science and pollution research international》2016,23(20):20307-20314
Environmental Science and Pollution Research - Exposure to arsenic (As) increases cardiovascular risk. The purpose of this study was to evaluate the relationship between As and intima-media... 相似文献
26.
Daniele Daffonchio Grazia Baggi Gian Pietro Molinari Giancarlo Ranalli Claudia Sorlini 《Journal of environmental science and health. Part. B》2013,48(2):257-268
Abstract Cometabolic degradation of the herbicide molinate was tested using two microorganisms, Arthrobacter sp., strain M3 and Streptomyces griseus strain M2; the latter classified on the basis of the presence of the enzymatic cofactor SF‐420. The strains M3 and M2, inoculated in a basic salts medium with glucose as carbon source and added with 100 mg L‐1 of molinate, degraded respectively 35 and 51% of the herbicide in 36 days. Increasing concentrations of molinate, ranging from 50 to 200 mg L‐1 in glucose medium, did not affect the final ATP yield of the strain M2, but decreased the final growth yield and the ATP synthesis rate. Moreover, the onset of coenzyme SF‐420 synthesis was progressively delayed. In contrast, surprisingly, SF‐420 final yield and production rate were increased by progressive increasing concentrations of molinate in the mineral medium. 相似文献
27.
Prey capture is a fundamental process for the success of copepods in food-diluted environments. This process is influenced
by several factors, including swimming and predatory habits. This work is aimed at characterising the kinematic and fractal
properties of the swimming trajectories and reconstructing the predatory horizon of the small calanoid copepod Clausocalanus furcatus. Results indicate that the motion of C. furcatus resembles a random process, mainly evolving in one direction, whereas its predatory horizon is confined to a small region
frontal to the anterior end of the copepod. These outcomes are discussed in terms of specific adaptation taking into account
the natural conditions experienced by C. furcatus in its environment. 相似文献
28.
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
29.
Lopes Priscila F. M. Pennino Maria Grazia Freire Fúlvio 《Regional Environmental Change》2018,18(1):223-234
Regional Environmental Change - Shrimps are an important and valuable fishing resource, being increasingly exploited worldwide, demanding appropriate management. However, factors such as how... 相似文献
30.
Conti ME Finoia MG Bocca B Mele G Alimonti A Pino A 《Environmental monitoring and assessment》2012,184(1):527-538
Lichen, Usnea barbata, transplants taken from Tierra del Fuego (south Patagonia, Argentina) were tested as potential biomonitors of atmospheric
airborne deposition in an apparently pristine environment. In 2005, lichens were sampled in a reference site (n = 31) and transplanted in the northern Region of Tierra del Fuego. After, respectively, 1 month and 1 year of exposure, we
collected them. The aim of the study was to determine the bioaccumulation of 26 elements in order to evaluate the background
levels in the selected area. Samples were analyzed by the sector field inductively coupled plasma mass spectrometry. Discriminant
analysis on principal component analysis factors was applied in order to explore the relationship among the different elements
as far as time and spatial variation in transplants regards. The analysis was tested by Monte Carlo test based on 999 replicates.
The most important contamination source resulted to be the atmospheric soil particle deposition. Furthermore, the results
were compared with those obtained from the lichens collected in central and southern Tierra del Fuego. This study confirms
the ability of U. barbata to reflect the background levels of the 26 elements in that environment. Compared with other background sites in the world,
we did confirm that Tierra del Fuego lichens have a low content of the studied elements. Tierra del Fuego turned out not to
be a pristine environment as supposed, but it can be considered as a reference basal ecosystem for useful comparisons among
different geographical areas. These findings can be very relevant and useful for environmental conservation programs. 相似文献