In order to better predict the aggregation state of nanomaterials, the factors that influence aggregation must be understood. The combined effects of natural and engineered coatings have been shown to factor into nanoparticle aggregation behavior in preliminary research. In this study, aggregation behaviors of gold nanoparticles with two different engineered...
The aggregation of 12 nm citrate-stabilized gold nanoparticles (cit-AuNPs) in the presence of four
different natural organic matter (NOM) isolates and a monovalent electrolyte (KCl) was evaluated using
time-resolved dynamic light scattering. All four NOM isolates stabilized the cit-AuNPs with respect to
aggregation. However, specific effects varied among the different...
We show that death by dissolution is an important size-dependent mortality Utilizing a new experimental design, we were able to replicate saturation states frequently encountered by Mercenaria mercenaria in coastal deposits mercenaria were reared in sediments at Ωaragonite = 0.4 and 0.6, significant occurred (14.0% and 14.4% d⁻¹, respectively), relative...
The current study examines the effects of prekindergarten quality and quantity on externalizing
behavior problems for children living in non-parental care, compared to other children from
socioeconomically at-risk backgrounds. Data were obtained from the Head Start Impact Study.
Non-parental care was defined as a primary caregiver other than a biological,...
The current study examines the effects of Head Start on the development of school readiness outcomes for children living in non-parental care. Data were obtained from the Head Start Impact Study, a randomized controlled trial of Head Start conducted with a nationally representative sample of Head Start programs and families....
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
Full Text:
USA
A Argerich
1
,
S L Johnson
2
, S D Sebestyen
3
, C C Rhoades
4
, E Greathouse
1
, J D
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
Full Text:
forested reference catchments across
the USA
A Argerich1, S L Johnson2, S D Sebestyen3, C C Rhoades4,
E
To examine whether stream nitrogen concentrations in forested reference catchments have changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr of data collected from 22 catchments at seven USDA Forest Service Experimental Forests. Trends in stream nitrogen presented high spatial variability both...
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...