Results 11 to 20 of about 175,853,469 (253)

Trace elements in rock salt and their bioavailability estimated from solubility in acid

, 2006
In this study, 18 partly commercially available samples of rock salt from Austria, Germany, Pakistan, Poland, Switzerland, and Ukraine were investigated with respect to their content of trace elements using instrumental neutron activation analysis ...
Steinhauser, Georg, Sterba, Johannes H., Bichler, Max, Poljanc, Karin, Buchtela, Karl   +4 more
core   +4 more sources

Fluvial contributions of nutrient salts, dissolved trace elements and organic carbon to the sea by pristine temperate rivers (SW Europe). [PDF]

, 2013
Bernárdez, P., Ospina-Alvarez, N., Caetano, M., & Prego, R. (2013). Fluvial contributions of nutrient salts, dissolved trace elements and organic carbon to the sea by pristine temperate rivers (SW Europe). Environmental Chemistry, 10(1), 42–53. doi:http:/
R. Prego, N. Ospina-Alvarez, Caetano, M., Bernárdez, Patricia, M. Caetano, Ospina-Álvarez, Natalia, Bernárdez, P., Prego, R., Caetano, Miguel, Ospina-Alvarez, N., P. Bernárdez   +10 more
core   +1 more source

Organic Compounds, Radiocarbon, Trace Elements and Atmospheric Transport Illuminating Sources of Elemental Carbon in a 300‐Year Svalbard Ice Core [PDF]

, 2023
Black carbon (BC) particles produced by incomplete combustion of biomass and fossil fuels warm the atmosphere and decrease the reflectivity of snow and ice, hastening their melt.
Liu, X, Gallet, j-C, Isaksson, E., Sippula, O, Liu, X., Gallet, J.‐C., E. Beaudon, Beaudon, E., E. Isaksson, Khedr, M, Sippula, O., Ström, Johan,, J. Schnelle‐Kreis, Khedr, M., P. Tunved, M. Hermanson, Gallet, J. -c., J. Ström, Ruppel, M. M., S. Manninen, Hermanson, M., Ström, J, Hermanson, M, Koponen, H., Tunved, Peter,, Ruppel, Meri, Koponen, H, O. Sippula, Manninen, S., S. Szidat, Schnelle-Kreis, J, Beaudon, E, Schnelle-Kreis, J., X. Liu, H. Koponen, M. M. Ruppel, Szidat, S., Tunved, P, M. Khedr, Szidat, S, Tunved, P., Schnelle‐Kreis, J., Manninen, Sirkku, J.‐C. Gallet, Ström, J.   +44 more
core   +2 more sources

Benthic-pelagic mixing of trace elements in estuarine food webs [PDF]

, 2021
Trace element accumulation pathways are important in many ecological and toxicological studies on aquatic organisms, yet these pathways are often poorly understood.
O'Mara, Kaitlyn, Fry, Brian, Burford, Michele, Michele Burford, Kaitlyn O'Mara, Brian Fry   +5 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Measurement of trace elements in murine liver tissue samples: Comparison between ICP-MS/MS and TXRF [PDF]

, 2023
Background Trace elements exhibit essential functions in many physiological processes. Thus, for research focusing on trace element homeostasis and metabolism analytical methods allowing for multi-element analyses are fundamental.
Schlörmann, Wiebke, Tuchtenhagen, Max, Kipp, Anna Patricia, Schwarz, Maria, Schwerdtle, Tanja, Lossow, Kristina, Wiebke Schlörmann, Max Tuchtenhagen, Anna Patricia Kipp, Tanja Schwerdtle, Kristina Lossow, Maria Schwarz   +11 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Trace elements in the hair [PDF]

, 2013
posterStudy of uneven distribution of trace elements in elephant hair and compare the result with animal ...
Hu, Lihai
core  

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source