Results 51 to 60 of about 151,634 (295)

Life cycle assessment of biodiesel synthesis from waste cooking oil using bifunctional heterogeneous catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The development of renewable energy sources is important in order to achieve the United Nations Sustainable Development Goals (SDGs). Waste cooking oil (WCO) is a promising feedstock for biodiesel production through transesterification. Heterogeneous bifunctional catalysts offer a sustainable alternative to conventional homogeneous bases such ...
Frederick Jit Fook Phang   +9 more
wiley   +1 more source

Effect of farming system changes on life cycle assessment indicators for dairy farms in the Italian Alps. [PDF]

open access: yes, 2010
In some Alpine areas dairy farming is going through a process of intensification with significant changes in farming systems. The aim of this study was to investigate environmental performance of a sample of 31 dairy farms in an Alpine area of Lombardy ...
Boer, I.J.M., de   +3 more
core   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

How cost-effective are direct payments to organic farms for achieving environmental policy targets? [PDF]

open access: yes, 2011
Since 1993, the Swiss federal agricultural policy has been providing financial support for organic farming via area payments. Like other voluntary agri-environmental measures (AEM), these payments are intended as incentives for farmers to comply with ...
Christie, M.   +3 more
core  

Long‐term trends in parasite diversity and infection levels: approaches and patterns

open access: yesBiological Reviews, EarlyView.
ABSTRACT Parasites exist in every ecosystem, affecting nearly all organisms and playing a complex role in human societies. On the one hand, they contribute substantially to biodiversity and support ecosystem stability by performing essential ecological functions.
Cyril Hammoud   +8 more
wiley   +1 more source

Triazine herbicide reduced the toxicity of the harmful dinoflagellate Karenia mikimotoi by impairing its photosynthetic systems

open access: yesEcotoxicology and Environmental Safety
Triazine herbicides are common contaminants in coastal waters, and they are recognized as inhibitors of photosystem II, causing significant hinderance to the growth and reproduction of phytoplankton.
Xiang-Wu Chen   +4 more
doaj   +1 more source

Transcriptome data of Prorocentrum donghaiense Lu under nitrogen and phosphorus limitation

open access: yesData in Brief, 2018
Prorocentrum donghaiense Lu is one of the most frequently occurred harmful algae in the coastal waters of China. The growth of P. donghaiense can be limited by nitrogen or phosphorus in marine environment. However, molecular mechanism of P.
Jing-Jing Li   +3 more
doaj   +1 more source

Nitrogen flows from European watersheds to coastal marine waters [PDF]

open access: yes, 2011
Nitrogen flows from European watersheds to coastal marine waters Executive summary Nature of the problem • Most regional watersheds in Europe constitute managed human territories importing large amounts of new reactive nitrogen.
Beusen, Arthur   +17 more
core  

Relationships between land use and nitrogen and phosphorus in New Zealand lakes [PDF]

open access: yes, 2011
Developing policies to address lake eutrophication requires an understanding of the relative contribution of different nutrient sources and of how lake and catchment characteristics interact to mediate the source–receptor pathway.
Abell, Jonathan Michael   +3 more
core   +2 more sources

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy