Results 41 to 50 of about 491,180 (164)

Oxychlorine Species on Mars: A Review

open access: yesReviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

Cyanobacteria: A sustainable and commercial bio-resource in production of bio-fertilizer and bio-fuel from waste waters

open access: yesEnvironmental and Sustainability Indicators, 2019
The indiscriminate increasing the human population and development has posed extra burden on the soil and water resources. Micro-algae and cyanobacteria compared to other organisms are eco-friendly, larger cell size and efficient biomass production ...
Jay Shankar Singh   +2 more
doaj   +1 more source

Occurrence of short- and medium-chain chlorinated paraffins in raw dairy cow milk from five Chinese provinces

open access: yesEnvironment International, 2020
Chlorinated paraffins (CPs) are industrial chemicals that are produced in large quantities and used globally. Human exposure to CPs is primarily through dietary intake, especially from animal-derived food products.
Shujun Dong   +10 more
doaj   +1 more source

Toward a Nature-Based Economy

open access: yesFrontiers in Climate, 2022
Humanity faces a dual threat to its existence: climate change and biodiversity loss. The two risks are linked through human activity and an economic system that promotes growth at the expense of nature.
Ralph Chami   +3 more
doaj   +1 more source

High Mobility and Electrostatics in GeSn Quantum Wells With SiGeSn Barriers

open access: yesAdvanced Electronic Materials, Volume 11, Issue 19, November 18, 2025.
This study investigates electrical transport in GeSn quantum wells with SiGeSn barriers and characterizes hole mobilities as a function of hole density. The observed mobilities are higher than previously reported for GeSn quantum wells with similar compositions but with a Ge barrier.
Christopher R. Allemang   +7 more
wiley   +1 more source

Climate Change in Remote Mountain Regions: A Throughfall-Exclusion Experiment to Simulate Monsoon Failure in the Himalayas

open access: yesMountain Research and Development, 2017
The Himalayas are predicted to experience more than 3 times the mean global rise in temperature, as well as erratic rainfall patterns and an increased likelihood of total monsoon failures.
Norbu Wangdi   +14 more
doaj   +1 more source

Source apportionment of particle number size distribution in urban background and traffic stations in four European cities

open access: yesEnvironment International, 2020
Ultrafine particles (UFP) are suspected of having significant impacts on health. However, there have only been a limited number of studies on sources of UFP compared to larger particles.
Ioar Rivas   +17 more
doaj   +1 more source

DOLOMITE AND CALCITE TREATMENTS APPLYING IN MELIORATION OF AN ACIDIC SANDY SOIL [PDF]

open access: yesNatural Resources and Sustainable Development, 2019
In the Institute of Agricultural Chemistry and Soil Science of Debrecen University in pot experiment, the effect of two carbonate containing amendments are examined on some properties of an acidic humous sandy soil (pHH2O=5.2) originating from Nagykáta ...
Tállai Magdolna   +3 more
doaj   +1 more source

Presence of antibiotic residues in various environmental compartments of Shandong province in eastern China: Its potential for resistance development and ecological and human risk

open access: yesEnvironment International, 2018
Objectives: To investigate the occurrence of antibiotic residues in different types of environmental samples including water samples in rural Shandong province, China.
Nada Hanna   +12 more
doaj   +1 more source

Inhibitory effects of metal ions on reductive dechlorination of polychlorinated biphenyls and perchloroethene in distinct organohalide-respiring bacteria

open access: yesEnvironment International, 2020
Bioremediation of sites co-contaminated with organohalides and metal pollutants may have unsatisfactory performance, since metal ions can potentially inhibit organohalide respiration.
Qihong Lu   +6 more
doaj   +1 more source

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