Results 51 to 60 of about 258 (154)

Impact of Biological Wastewater Treatment on the Reactivity of N-Nitrosodimethylamine (NDMA) Precursors [PDF]

open access: yes, 2020
N-Nitrosamines are a group of probable human carcinogens associated with 10-6 lifetime cancer risks at low ng/L levels in drinking water. N-nitrosamines can form via the reactions between chloramines (i.e., monochloramine, dichloramine) and organic ...
Zhang, Xiaolu
core   +1 more source

Biogeochemical characterization of a LNAPL body in support of STELA [PDF]

open access: yes, 2013
2013 Fall.Includes bibliographical references.Microbially-mediated depletion of light non-aqueous phase liquids (LNAPL) has gained regulatory acceptance as a method for managing impacted sites.
Irianni Renno, Maria
core  

Characterization of YisK, a Cell Shape Modifier and Enzyme in Bacillus subtilis [PDF]

open access: yes, 2019
Bacterial growth and division requires the careful coordination of peptidoglycan (PG) synthesis and PG hydrolysis, allowing the insertion of new cell wall material at sites of active growth.
Sperber, Anthony Michael
core   +3 more sources

Characterization of 5-chlorosalicylate dioxygenase: a unique bacterial ring-fission enzyme [PDF]

open access: yes, 2003
Bacterial ring-fission dioxygenase (RFD) enzymes play a key role in the biodegradation of chlorinated aromatic compounds. 5-CL-SAL-la is designated an "unknown bacterium" by the American Type Culture Collection.
Paris, Jeanie M.
core   +1 more source

nag Genes of Ralstonia (Formerly Pseudomonas ) sp. Strain U2 Encoding Enzymes for Gentisate Catabolism [PDF]

open access: yes, 2001
Ralstonia sp. strain U2 metabolizes naphthalene via gentisate to central metabolites. We have cloned and sequenced a 21.6-kb region spanning the nag genes. Upstream of the pathway genes are nagY,
Ning-Yi Zhou   +2 more
core   +1 more source

αβ-PEPTIDE MIMICS OF Z-DOMAIN PEPTIDES [PDF]

open access: yes, 2016
Described are αβ-peptide mimics of Z-domain scaffold pep tides, methods of making them, and methods of using them. The αβ-peptide mimics include B-amino acid residues and, optionally, disulfide bonds to stabilize the conformation of the mimics.
Checco, James W., Gellman, Samuel H.
core   +1 more source

Synthesis and Characterization of Biologically Relevant Fe(II) Complexes Containing Redox-Active (Hydro)quinone Ligands [PDF]

open access: yes, 2016
Redox-active p-(hydro)quinones work in concert with transition-metal centers to facilitate electron transfers in numerous biological contexts. While p-(hydro)quinones are known to interact with both heme and nonheme iron cofactors, the nonheme systems ...
Baum, Amanda Elizabeth
core   +1 more source

Biochar as a soil amendment to enhance petroleum hydrocarbon degradation in northern landfarms [PDF]

open access: yes, 2018
Extreme environmental conditions in northern regions slows efforts to remediate petroleum hydrocarbon (PHC) contaminated soils through conventional landfarming practices.
Karppinen, Erin Maria
core  

Domain Duplication, Darwinian Selection, and the Origin of the Globulin Seed Storage Proteins [PDF]

open access: yes, 2008
The seed storage globulins found among virtually all spermatophytes comprise a multi-gene family of proteins with ancient evolutionary origins. The two main groups of storage globulins include the legumins (11S) and vicilins (7S), both of which play a ...
Cannon, Nathaniel S.
core   +1 more source

Validity of in vitro studies with fumaric acid esters for treatment situations in humans: a literature based analysis [PDF]

open access: yes
Besides methotrexate, ciclosporin, hydroxycarbamide and retinoids, fumaric acid esters based drugs are used since 1971 as an immunosuppressive, respectively immunomodulatory, medication in the therapy of severe psoriasis.
Heidelberg, Margaret
core  

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