全文获取类型
收费全文 | 33篇 |
免费 | 0篇 |
专业分类
安全科学 | 2篇 |
环保管理 | 2篇 |
综合类 | 22篇 |
基础理论 | 4篇 |
污染及防治 | 1篇 |
评价与监测 | 2篇 |
出版年
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2014年 | 1篇 |
2013年 | 1篇 |
2011年 | 1篇 |
2009年 | 1篇 |
2007年 | 3篇 |
2006年 | 1篇 |
2005年 | 1篇 |
1998年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1990年 | 1篇 |
1980年 | 1篇 |
1969年 | 1篇 |
1965年 | 1篇 |
1962年 | 1篇 |
1961年 | 2篇 |
1960年 | 1篇 |
1957年 | 1篇 |
1955年 | 1篇 |
1932年 | 1篇 |
1927年 | 1篇 |
1926年 | 1篇 |
1924年 | 2篇 |
1913年 | 1篇 |
排序方式: 共有33条查询结果,搜索用时 515 毫秒
21.
Werner Baur 《Die Naturwissenschaften》1955,42(10):295-296
22.
Carmen?Baur?VieiraEmail author Adriana?de?Abreu Corrêa Michele?Silva?de?Jesus Sérgio?Luiz?Bessa?Luz Peter?Wyn-Jones David?Kay Marta?Vargha Marize?Pereira?Miagostovich 《Food and environmental virology》2016,8(1):57-69
The Negro River is located in the Amazon basin, the largest hydrological catchment in the world. Its water is used for drinking, domestic activities, recreation and transportation and water quality is significantly affected by anthropogenic impacts. The goals of this study were to determine the presence and concentrations of the main viral etiological agents of acute gastroenteritis, such as group A rotavirus (RVA) and genogroup II norovirus (NoV GII), and to assess the use of human adenovirus (HAdV) and JC polyomavirus (JCPyV) as viral indicators of human faecal contamination in the aquatic environment of Manaus under different hydrological scenarios. Water samples were collected along Negro River and in small streams known as igarapés. Viruses were concentrated by an organic flocculation method and detected by quantitative PCR. From 272 samples analysed, HAdV was detected in 91.9 %, followed by JCPyV (69.5 %), RVA (23.9 %) and NoV GII (7.4 %). Viral concentrations ranged from 102 to 106 GC L?1 and viruses were more likely to be detected during the flood season, with the exception of NoV GII, which was detected only during the dry season. Statistically significant differences on virus concentrations between dry and flood seasons were observed only for RVA. The HAdV data provides a useful complement to faecal indicator bacteria in the monitoring of aquatic environments. Overall results demonstrated that the hydrological cycle of the Negro River in the Amazon Basin affects the dynamics of viruses in aquatic environments and, consequently, the exposure of citizens to these waterborne pathogens. 相似文献
23.
Matheus Ribeiro da Silva Assis Carmen Baur Vieira Julia Monassa Fioretti Mônica Simões Rocha Pedro Ivo Neves de Almeida Marize Pereira Miagostovich Tulio Machado Fumian 《Food and environmental virology》2016,8(4):305-309
Gemycircularvirus (GemyCV) is a group of viruses which has been recently proposed as a new viral genus detected in fecal and environmental samples around the world. GemyCVs have been detected in human blood, brain tissue, cerebrospinal fluid, and stool sample. In the present study, we demonstrate for the first time, through molecular detection and characterization, the presence of GemyCVs in environmental samples from Brazil. Our results show a percentage of positivity ranging from 69 (25/36) to 97 % (35/36) in river water samples collected in Manaus, Amazon region, and wastewater from a wastewater treatment plant located in Rio de Janeiro, respectively, revealing GemyCVs as an important environmental contaminant. 相似文献
24.
Mario Gellrich Priska Baur Niklaus E. Zimmermann 《Environmental Modeling and Assessment》2007,12(4):269-278
In many European mountain regions, natural forest regrowth on abandoned agricultural land and the related consequences for
the environment are issues of increasing concern. We developed a spatial statistical model based on multiple geophysical and
socio-economic variables to investigate the pattern of natural forest regrowth in the Swiss mountain area between the 1980s
and 1990s. Results show that forest regrowth occurred primarily in areas with low temperature sum, intermediate steepness
and soil stoniness as well as close to forest edges and relatively close to roads. Model results suggest that regions with
weak labor markets are favored in terms of land abandonment and forest regrowth. We could not find an effect of population
change on land abandonment and forest regrowth. Therefore, we conclude that decision makers should consider non-linearities
in the pattern of forest regrowth and the fact that labor markets have an effect on land abandonment and forest regrowth when
designing measures to prevent agricultural land abandonment and natural forest regrowth in the Swiss mountains. 相似文献
25.
26.
The Science of Nature - 相似文献
27.
The dynamics of aqueous aluminium in the ARINUS experimental watersheds at Schluchsee (granite) and Villingen (quartz sandstone), Black Forest (South-west Germany), were studied in order to detect the processes and factors controlling its mobility. Aluminium speciation was performed in the seepage of typical soils (podsol, acidic brown earth, stagnogley) at 3 depths (organic layer, 30 cm and 80 cm of the mineral soil) as well as in streamwater. The studies concentrated on the variability in time and space of inorganic monomeric Al (Ali), and organic monomeric Al (Alo). Furthermore, the equilibrium speciation model WATEQF was used to calculate the distribution of inorganic Al species. Natural soil properties and processes, such as DOC mobilization and excess mineralization of NO3(2-) and SO4(2-), appeared to have great influence and outweigh the deposition effects upon Al mobilization in these systems which receive only low to moderate loads of acidic deposition. 相似文献
28.
K. Knoch Alfred Wegener A. Prey Hartmann F. Baur A. Schmauss 《Die Naturwissenschaften》1926,14(33):774-778
29.
30.
Heiner Baur Simone Grebner Angela Blasimann Anja Hirschmüller Eva Johanna Kubosch 《International journal of occupational safety and ergonomics》2018,24(1):35-40
Objective. Surgical nurses’ work is physically and mentally demanding, possibly leading to work–family conflict (WFC). The current study tests WFC to be a risk factor for neck and lower back pain (LBP). Job influence and social support are tested as resources that could buffer the detrimental impact of WFC. Methods. Forty-eight surgical nurses from two university hospitals in Germany and Switzerland were recruited. WFC was assessed with the Work–Family Conflict Scale. Job influence and social support were assessed with the Copenhagen Psychosocial Questionnaire, and back pain was assessed with the North American Spine Society Instrument. Results. Multiple linear regression analyses confirmed WFC as a significant predictor of cervical pain (β?=?0.45, p?0.001) and LBP (β?=?0.33, p?=?0.012). Job influence and social support did not turn out to be significant predictors and were not found to buffer the impact of WFC in moderator analyses. Conclusion. WFC is likely to affect neck and back pain in surgery nurses. Work–life interventions may have the potential to reduce WFC in surgery nurses. 相似文献