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51.
Nicola Rizzo Sandro Gabrielli Gianluigi Pilu Antonella Perolo Alfredo Cacciari Remigio Domini Luciano Bovicelli 《黑龙江环境通报》1987,7(2):109-118
Multicystic dysplastic kidney disease (MDKD) is one of the most common congenital renal anomalies. We report 16 consecutive cases of MDKD recognized in the antenatal period by sonography. Diagnosis is usually easy as MDKD has in the vast majority of cases a striking ultrasound appearance including enlargement of the kidney and multiple renal cysts. However, differentiation from obstructive uropathy may be difficult, and we made a total of five erroneous diagnoses. Unilateral MDKD has almost invariably a good prognosis. However, severe life-threatening associated anomalies were found in six cases. Therefore, a detailed survey of fetal anatomy and determination of karyotype are strongly recommended. 相似文献
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The Barigui River watershed is located in the metropolitan region of Curitiba, southern Brazil, passing through several neighboring counties. In recent years, due to growth and disorderly occupation along the river, in addition to lack of sanitation, the Basin suffered a very large inflow of untreated domestic sewage. Current programs to monitor the watershed use traditional physical-chemical parameters and generally the analysis is performed only with water samples. This study analyzes the presence of fecal sterols in sediment samples. Sediment samples were collected from six points along the river and the stanols were extracted, purified and analyzed by GC-MS. Eight compounds were analyzed, among sterols and ketones. The presence of coprostanol was also identified. Coprostanol is a stanol containing a large amount in human feces. It is found near sources of pollution and can be associated with contamination by domestic sewage. The results showed high concentrations of coprostanol, ranging from 0.25 to 196 mug g( - 1). The ratio of coprostanol and epicoprostanol, was below 0.20 at most stations, indicating that the sewage discharged into the river does not undergo prior treatment. Contamination by untreated sewage was also confirmed by ratios of isomeric forms of sterols and ketones 5beta/(5beta + 5alpha). 相似文献
56.
Landscape-fragmentation change due to recent agricultural expansion in the Brazilian Savanna,Western Bahia,Brazil 总被引:1,自引:0,他引:1
57.
Courbet C Rivière A Jeannottat S Rinaldi S Hunkeler D Bendjoudi H de Marsily G 《Journal of contaminant hydrology》2011,126(3-4):315-329
58.
Robyn R.M. Gershon Author Vitae Julie M. Pearson Author Vitae Author Vitae David Vlahov Author Vitae Author Vitae Melissa Tracy Author Vitae Author Vitae Sandro Galea Author Vitae 《Journal of Safety Research》2008,39(6):583-588
Problem
Subway transit is a relatively safe mode of transportation, yet compared to all other forms of mass transit in the United States (U.S.), subways have the highest fatality rate. The aim of this paper is to characterize subway-related fatalities in order to identify opportunities for risk reduction.Method
Medical examiner records for all New York City (NYC) subway-related deaths (1990-2003) were reviewed. Data were abstracted on decedents' demographics and autopsy findings, including laboratory findings.Results
There were 668 subway-related fatalities, of these, 10 (1.5%) were homicides, 343 (51.3%) were determined to be suicides, and 315 (47.2%) were accidental. Although decedent characteristics varied between fatality categories, they were not particularly informative with regard to prevention.Conclusion
Prevention strategies that focus on structural controls are likely to be most efficacious in improving the overall safety of the NYC subway systems.Impact on industry
These findings suggest that structural rather than individual-level interventions would be most successful in preventing subway fatalities. 相似文献59.
Precipitation scavenging coefficient: influence of measured aerosol and raindrop size distributions 总被引:2,自引:0,他引:2
Mihaela Mircea Sabina Stefan Sandro Fuzzi 《Atmospheric environment (Oxford, England : 1994)》2000,34(29-30)
Precipitation scavenging coefficients, widely used in pollution studies, are derived from microphysical parameterisations of aerosol particles and raindrop populations and parameterisations of their interactions. The present study investigates the effects of measured aerosol and raindrop size distributions in a microphysical polydisperse framework. The interactions between aerosol and raindrops parameterised as collision efficiency are explicitly included to account for Brownian diffusion, inertial impaction and interception. Estimated values of the polydisperse scavenging coefficients exhibit variations of orders of magnitude depending on the aerosol type and almost no variation with the raindrop size distributions. For practical use, linear relationships between the scavenging coefficients and rain intensity for different aerosol types are derived. 相似文献
60.
Roberto Delogu Andrea Battistone Gabriele Buttinelli Stefano Fiore Stefano Fontana Concetta Amato Karen Cristiano Sabine Gamper Josef Simeoni Rita Frate Laura Pellegrinelli Sandro Binda Licia Veronesi Roberta Zoni Paolo Castiglia Andrea Cossu Maria Triassi Francesca Pennino Cinzia Germinario Viviana Balena Antonella Cicala Pietro Mercurio Lucia Fiore Carlo Pini Paola Stefanelli 《Food and environmental virology》2018,10(4):333-342
Within the initiatives for poliomyelitis eradication by WHO, Italy activated an environmental surveillance (ES) in 2005. ES complements clinical Acute Flaccid Paralysis (AFP) surveillance for possible polio cases, detects poliovirus circulation in environmental sewage, and is used to monitor transmission in communities. In addition to polioviruses, the analyses comprised: (i) the monitoring of the presence of non-polio enteroviruses in sewage samples and (ii) the temporal and geographical distribution of the detected viruses. From 2009 to 2015, 2880 sewage samples were collected from eight cities participating in the surveillance. Overall, 1479 samples resulted positive for enteroviruses. No wild-type polioviruses were found, although four Sabin-like polioviruses were detected. The low degree of mutation found in the genomes of these four isolates suggests that these viruses have had a limited circulation in the population. All non-polio enteroviruses belonged to species B and the most frequent serotype was CV-B5, followed by CV-B4, E-11, E-6, E-7, CV-B3, and CV-B2. Variations in the frequency of different serotypes were also observed in different seasons and/or Italian areas. Environmental surveillance in Italy, as part of the ‘WHO global polio eradication program’, is a powerful tool to augment the polio surveillance and to investigate the silent circulation or the re-emergence of enteroviruses in the population. 相似文献