Results 51 to 60 of about 1,418,768 (341)

Comparative Analysis between Ecotoxicity of Nitrogen-, Phosphorus-, and Potassium-Based Fertilizers and Their Active Ingredients

Toxics, 2016
This study aimed to analyze the ecotoxicity of nitrogen-, phosphorus-, and potassium-based compounds to organisms of two different trophic levels in order to compare the toxic effect between high-purity substances and these substances as components of ...
Nathan de Castro Soares Simplício, Daphne Heloísa de Freitas Muniz, Fernanda Regina Moreira Rocha, Denis Cavalcanti Martins, Zélia Malena Barreira Dias, Bruno Pereira da Costa Farias, Eduardo Cyrino Oliveira-Filho   +6 more
doaj   +1 more source

Partitioning of Poly(amidoamine) Dendrimers between n-Octanol and Water [PDF]

, 2009
Dendritic nanomaterials are emerging as key building blocks for a variety of nanoscale materials and technologies. Poly(amidoamine) (PAMAM) dendrimers were the first class of dendritic nanomaterials to be commercialized.
Dalleska, Nathan F., Diallo, Mamadou S., Fang, Xiangdong, Giri, Jyotsnendu, Goddard, William A., III, Tang, Yongchun   +5 more
core   +2 more sources

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Molecular Dynamics Insights for Screening the Ability of Polymers to Remove Pesticides from Water

ChemistryOpen, 2019
The use of pesticides in agriculture is known to have environmental impacts, namely it leads to underground and spring water contamination. Thus, it turns out that nowadays general‐endeavor towards the sustainability of farmer production requires novel ...
F. G. A. Estrada, J. M. C. Marques, A. J. M. Valente   +2 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

An Evaluation of Illicit Stimulants and Metabolites in Wastewa ter Effluent and the Wisconsin River Along the Central Wisconsin River Basin [PDF]

Acta Scientiarum Polonorum. Formatio Circumiectus, 2015
The goals of the study were to develop a method for extracting and quantifying illicit stimulants and metabolites, methamphetamine, amphetamine, cocaine, and benzoylecogonine from wastewater effluent and surface water grab samples, and ...
Erik S. Hendrickson, Isaiah J. Robertson
doaj   +1 more source

Influence of Doubled CO2 on Ozone via Changes in the Brewer–Dobson Circulation [PDF]

, 2007
In this short note, the effect of enhanced circulation due to doubling CO2 on ozone is investigated. The difference of Brewer–Dobson circulation (BDC) between the doubled CO2 and control run from an idealized atmospheric general circulation model is ...
Eichelberger, Scott J., Hartmann, Dennis L., Jiang, Xun, Shia, Runlie, Yung, Yuk L.   +4 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

A QUÍMICA AMBIENTAL NO BRASIL NOS 40 ANOS DA SBQ

Química Nova
This paper aims to present an overview of the ongoing of the Brazilian environmental chemistry over the last forty years inserted in the context of the Brazilian Chemical Society (SBQ).
Maria C. Canela, Anne H. Fostier, Marco T. Grassi   +2 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source