scholarly journals The Ba/Ca record of coral from Weizhou Island: Contributions from oil-drilling muds and the winter monsoon

2022 ◽  
Vol 174 ◽  
pp. 113317
Author(s):  
Xiaohua Li ◽  
Lipeng Zhang ◽  
Yi Liu ◽  
Weidong Sun
2001 ◽  
Vol 43 (6) ◽  
pp. 9-16 ◽  
Author(s):  
H.-C. Flemming ◽  
J. Wingender

Extracellular polymeric substances (EPSs) are involved in both detrimental and beneficial consequences of microbial aggregates such as biofilms, flocs and biological sludges. In biofouling, they are responsible for the increase of friction resistance, change of surface properties such as hydrophobicity, roughness, colour, etc. In biocorrosion of metals they are involved by their ability to bind metal ions. In bioweathering, they contribute by their complexing properties to the dissolution of minerals. The EPSs represent a sorption site for pollutants such as heavy metal ions and organic molecules. This can lead to a burden in wastewater sludge; on the other hand, the sorption properties can be used for water purification. Other biotechnological uses of EPS exploit their contribution to viscosity, e.g., in food, paints and oil-drilling ‘muds’; their hydrating properties are also used in cosmetics and pharmaceuticals. Furthermore, EPSs may have potential uses as biosurfactants, e.g., in tertiary oilproduction, and as biological glue. EPSs are an interesting component of all biofilm systems and still hold a large biotechnological potential.


Author(s):  
David Vogel

Over the course of its 150-year history, California has successfully protected its scenic wilderness areas, restricted coastal oil drilling, regulated automobile emissions, preserved coastal access, improved energy efficiency, and, most recently, addressed global climate change. How has this state, more than any other, enacted so many innovative and stringent environmental regulations over such a long period of time? This book shows why the Golden State has been at the forefront in setting new environmental standards, often leading the rest of the nation. From the establishment of Yosemite, America's first protected wilderness, and the prohibition of dumping gold-mining debris in the nineteenth century to sweeping climate-change legislation in the twenty-first, the book traces California's remarkable environmental policy trajectory. It explains that this pathbreaking role developed because California had more to lose from environmental deterioration and more to gain from preserving its stunning natural geography. As a result, citizens and civic groups effectively mobilized to protect and restore their state's natural beauty and, importantly, were often backed both by business interests and by strong regulatory authorities. Business support for environmental regulation in California reveals that strict standards are not only compatible with economic growth but can also contribute to it. The book also examines areas where California has fallen short, particularly in water management and the state's dependence on automobile transportation.


Author(s):  
A.A. Klimova ◽  
◽  
A.S. Mishunina ◽  
S.V. Azarova ◽  
D.E. Fominykh ◽  
...  
Keyword(s):  

2018 ◽  
Vol 056 (04) ◽  
Author(s):  
Sumer Seiki
Keyword(s):  

Author(s):  
Alan Krupnick ◽  
Sarah E. Campbell ◽  
Mark A. Cohen ◽  
Ian W. H. Parry

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