Results 41 to 50 of about 3,038,377 (386)

Performance and mechanisms of enhanced hydrolysis acidification by adding different iron scraps: Microbial characteristics and fate of iron scraps

open access: yesFrontiers in Microbiology, 2022
HA, as one of low-carbon pre-treatment technology could be enhanced by packing of iron or iron oxide powder for enhancing the transformation of large molecular weight to generate volatile fatty acids (VFAs) for fuel production.
Yanqiong Wang   +4 more
doaj   +1 more source

Reducing Penguin Pollution

open access: yes, 2013
The most common decay used for measuring 2beta_s, the phase of Bs-Bsbar mixing, is Bs -> J/psi phi. This decay is dominated by the colour-suppressed tree diagram, but there are other contributions due to gluonic and electroweak penguin diagrams.
ALAKABHA DATTA   +4 more
core   +1 more source

Marine Pollution [PDF]

open access: yesScience, 1971
In the editorial, "Marine pollution" (8 January 1971, page 21), the value given for the concentration of mercury found in tuna (paragraph 2, line 10, 0.5 x 10-6 part per billion) is incorrect. The correct value is 500 parts per billion.
openaire   +3 more sources

Rapid and Efficient Degradation of Ceftiofur Sodium by 5,6-Dimethylbenzimidazole-Modified ZIF(Fe/Co)x@CNF Nanocomposites

open access: yesJournal of Chemistry, 2023
The exploration of transforming various metals as metal sources into metal organic frameworks (MOFs) has attracted considerable attention in recent years. This study used triethylamine and 5,6-dimethylbenzimidazole (DMBIM) to modify the iron-doped cobalt
Hao Fu   +6 more
doaj   +1 more source

Impact of Shutdown due to COVID-19 Pandemic on Aerosol Characteristics in Kanpur, India [PDF]

open access: yesJournal of Health and Pollution, 2020
Background. Since March 2020, the number of confirmed COVID-19 positive cases have steadily risen in India. Various preventive measures have been taken to contain the spread of COVID-19.
Nidhi Shukla   +4 more
doaj   +1 more source

Nephelometer Sensitivities for the Determination of PM2.5 Mass Concentration in Ambient and Indoor Air

open access: yesAerosol and Air Quality Research, 2020
Simple algorithms are presented for the relationships between the gravimetrically measured PM2.5 mass concentration and a nephelometer particle scattering coefficient, for three different environments: two outdoor locations (an urban and a suburban) and ...
Dimitra Karali   +2 more
doaj   +1 more source

Polluting Politics [PDF]

open access: yesSSRN Electronic Journal, 2015
This paper estimates the causal impact of party affiliation (Republican or Democrat) of U.S. governors on pollution. Using a regression discontinuity design, gubernatorial election data, and air quality data from U.S. Environmental Protection Agency (EPA), we find that pollution is lower under Democratic governors.
Louis-Philippe Beland, Vincent Boucher
openaire   +2 more sources

Historical Redlining Is Associated with Present-Day Air Pollution Disparities in U.S. Cities

open access: yesEnvironmental Science and Technology Letters, 2022
Communities of color in the United States are systematically exposed to higher levels of air pollution. We explore here how redlining, a discriminatory mortgage appraisal practice from the 1930s by the federal Home Owners’ Loan Corporation (HOLC ...
H. Lane   +3 more
semanticscholar   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Polychlorinated biphenyls in residential soils and their health risk and hazard in an industrial city in India

open access: yesJournal of Public Health Research, 2014
Background. Polychlorinated biphenyls (PCBs) have never been produced in India, but were used in industrial applications. PCBs have been detected in environmental samples since 1966, and their sources in soils come from depositions of industrial ...
Bhupander Kumar   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy