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排序方式: 共有233条查询结果,搜索用时 15 毫秒
141.
Xu Xiaoqian Mola-Yudego Blas Selkimäki Mari Zhang Xiaoning Qu Mei 《Environmental science and pollution research international》2023,30(4):9011-9021
Environmental Science and Pollution Research - The treatment of agricultural waste plays an important role in the sustainability of agricultural production and the well-being of rural communities.... 相似文献
142.
Lorenzo Avanzi Lucia Savadori Franco Fraccaroli 《International journal of occupational safety and ergonomics》2018,24(1):52-61
Safety performance is recognized as the more proximal and effective precursor of safety outcomes. In particular, safety compliance significantly reduces workplace accidents and injuries. However, it is not entirely clear what role organizational factors play in determining workers’ safety. The present study contributes to defining which organizational factors increase safety compliance by testing a mediational model in which supervisor support is related to safety climate, which in turn is related to organizational identification that finally is related to safety compliance. We tested our hypotheses in a sample of 186 production workers of an Italian manufacturing firm using a cross-sectional design. Findings confirm our hypotheses. Management should consider these organizational factors in order to implement primary prevention practices against work accidents. 相似文献
143.
Otero Pastor I Casermeiro Martínez MA Ezquerra Canalejoa A Esparcia Mariño P 《Journal of environmental management》2007,85(1):204-214
Landscape evaluation is now widely recognised as a powerful, interdisciplinary, environmental research method. The aim of the present work was to compare two landscape evaluation methods as part of a physical planning process: the cartographic assessment method and the in situ assessment method. This comparison was performed using an area of the Montes de Toledo, in the centre of Spain. Both methods provided similar results for the majority of the landscape units studied. This shows that the cartographic method can be successfully used in landscape evaluation, allowing important savings in terms of fieldwork. However, this is only the case when the information provided by the available maps is sufficiently accurate to allow the correct assignment of coefficients by a panel of experts. 相似文献
144.
Sediment-dwelling macrofauna, polycyclic aromatic hydrocarbons (PAH), and abiotic parameters were monitored annually in benthic marine sediments from 1989-2007 in Port Valdez, a period of declining routine discharge of treated marine ballast water containing residual PAH from a major crude oil loading facility. The resulting dataset was used to evaluate associations between macrofauna and environmental characteristics including PAH concentrations. The influences of natural abiotic gradients on macrofauna were stronger than associations between macrofauna and sediment PAH. Though overall associations of PAH with macrofaunal community structure were weak, effects were greater for the tube-dwelling polychaete worms Galathowenia oculata and Melinna cristata which responded negatively to low PAH values near sediment quality criteria (threshold effects concentration: TEC and field-based sediment quality criterion: fb-SQG: ~300 ng g(?-1)). Effects of PAH on benthic fauna may be strongest through poor survival of juveniles and failed recruitment over multiple years. Comparison of measured PAH concentrations to the TEC and field-based fb-SQG suggest that the observed levels of change in Port Valdez are minor and the criteria are ecologically appropriate for environmental monitoring. By demonstrating positive responses of sensitive fauna to reduction of PAH concentration, this study contributes to understanding the temporal change, ecological importance, and size of effects expected on benthic fauna in the presence of continuous exposure to low levels of hydrocarbons. 相似文献
145.
Matassoni L Pratesi G Centioli D Cadoni F Lucarelli F Nava S Malesani P 《Journal of environmental monitoring : JEM》2011,13(3):732-742
From February 15th to April 15th 2009, a period characterised by two episodes of Saharan dust outbreaks in Italy, particulate matter (PM) samples were collected at two stations (urban and suburban) in Rome. Some samples were selected and analysed using the SEM-EDS technique to characterise PM, focussing especially on the mineral contribution. Samples were representative both of days affected by Saharan dust episodes and days without this contribution. Cluster analysis allowed the attribution of each of about 67,000 analysed particles to one of the seven main statistical groups based on their composition. Characteristics of the particulate components identified using SEM-EDS analysis were verified by PIXE analysis carried out on filters collected in a suburban area. Ultimately, the contribution of crustal particles was revealed to be consistently high, highlighting the importance of local and regional mineral contributions, as well as those of Saharan origin. Therefore, quantifying all mineral contributions to resuspended particulate could lead to significant reductions of the PM level also on days not influenced by Saharan dust, thus limiting conditions when PM?? daily limit value (DLV) established by European legislation is exceeded. 相似文献
146.
Vanessa Bonatti Zilá Luz Paulino Simões Fernando Faria Franco Tiago Mauricio Francoy 《Die Naturwissenschaften》2014,101(1):17-24
Melipona subnitida, a tropical stingless bee, is an endemic species of the Brazilian northeast and exhibits great potential for honey and pollen production in addition to its role as one of the main pollinators of the Caatinga biome. To understand the genetic structure and better assist in the conservation of this species, we characterized the population variability of M. subnitida using geometric morphometrics of the forewing and cytochrome c oxidase I gene fragment sequencing. We collected workers from six localities in the northernmost distribution. Both methodologies indicated that the variability among the sampled populations is related both to the environment in which samples were collected and the geographical distance between the sampling sites, indicating that differentiation among the populations is due to the existence of at least evolutionary lineages. Molecular clock data suggest that this differentiation may have begun in the middle Pleistocene, approximately 396 kya. The conservation of all evolutionary lineages is important since they can present differential resistance to environmental changes, as resistance to drought and diseases. 相似文献
147.
Ilaria Di Bartolo Eleonora Ponterio Andrea Battistone Paolo Bonomo Antonella Cicala Pietro Mercurio Maria Triassi Francesca Pennino Lucia Fiore Franco Maria Ruggeri 《Food and environmental virology》2013,5(4):236-240
Human sapoviruses were identified in 15 (12.4 %) of 121 inlet sewage samples collected from wastewater treatment plants in Naples and Palermo, Italy, in 2011. All strains, except one GI.1, were genotyped as GI.2 by sequencing a capsid gene fragment. This is the first detection of sapovirus in wastewaters in Italy. 相似文献
148.
Médice Rhuana Valdetário Afonso Robson José de Cássia Franco Almeida Marys Lene Braga de Aquino Sérgio Francisco Libânio Marcelo 《Environmental science and pollution research international》2021,28(4):3828-3836
Environmental Science and Pollution Research - Among drugs and personal care products, antibiotics arouse interest since they are widely used in human and veterinary medicine and can lead to the... 相似文献
149.
Tassi Franco Garofalo Paolo S. Turchetti Filippo De Santis Davide Capecchiacci Francesco Vaselli Orlando Cabassi Jacopo Venturi Stefania Vannini Stefano 《Environmental geochemistry and health》2022,44(7):1925-1948
Environmental Geochemistry and Health - This study focuses on the geochemical features of the presently discharging thermal and cold springs and on paleofluids from the upstream portion of the Reno... 相似文献
150.
Marcela Franco Giovany Guevara Loreto Correa Mauricio Soto-Gamboa 《Die Naturwissenschaften》2013,100(4):299-310
Non-invasive methodological approaches are highly recommended and commonly used to study the feeding ecology of elusive and threatened mammals. In this study, we use multiple lines of evidence to assess the feeding strategies of the endangered Southern river otter, by determining seasonal prey availability (electrofishing), analysis of undigested prey remains (spraints), and the use of stable isotopes (δ15N and δ13C) in otter spraints (n?=?262) and prey in a wetland ecosystem of southern Chile (39°49′S, 73°15′W). Fecal and isotopic analyses suggest that the otter diet is restricted to a few prey items, particularly the less-mobile, bottom-living, and larger prey such as crayfish (Samastacus spinifrons, 86.11 %) and crabs (Aegla spp., 32.45 %), supplemented opportunistically by cyprinids (Cyprinus carpio, 9.55 %) and catfish (Diplomystes camposensis, 5.66 %). The results suggest that the river otter is highly specialized in bottom foraging. Isotopic signatures of food sources and feces revealed a mid-upper trophic position for the Southern river otter, with either higher or lower δ15N values than their potential prey items. δ13C values for river otters were less enriched than their potential food resources. We suggest that due to their narrow trophic niche and possible dependence on only a few food items, this species may be highly vulnerable to the reduction in its prey populations. Finally, maintaining the ecological interactions between Southern river otters and their prey is considered a central priority for the survival of this endangered carnivore mammal. 相似文献