Results 41 to 50 of about 731,514 (328)

Resolving the controls of water vapour isotopes in the Atlantic sector

Nature Communications, 2019
Stable water isotopes are employed as hydrological tracers to quantify the diverse implications of atmospheric moisture for climate. They are widely used as proxies for studying past climate changes, e.g., in isotope records from ice cores and ...
J. Bonne, M. Behrens, H. Meyer, S. Kipfstuhl, B. Rabe, Lutz Schönicke, H. Steen‐Larsen, M. Werner   +7 more
semanticscholar   +1 more source

The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum

FEBS Letters, EarlyView.
In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti, Sebastian Obermaier, Dirk J. Slotboom, Bert Poolman   +3 more
wiley   +1 more source

Effects of Gamma Irradiation on Ruminal Degradation of Samurai 1 Sweet Sorghum Bagasse

Atom Indonesia, 2017
The purpose of this study was to investigate the influence of gamma irradiation on dry matter, organic matter, and neutral detergent fiber degradability of Samurai 1 sweet sorghum bagasse, to facilitate its utilization in ruminant diets.
T. Wahyono, N. Lelananingtyas, S Sihono
doaj   +1 more source

Highly fractionated chromium isotopes in Mesoproterozoic-aged shales and atmospheric oxygen

Nature Communications, 2018
The history of atmospheric oxygen through the Mesoproterozoic Era is uncertain, but may have played a role in the timing of major evolutionary developments among eukaryotes.
D. Canfield, Shuichang Zhang, A. Frank, Xiaomei Wang, Huajian Wang, J. Su, Y. Ye, R. Frei   +7 more
semanticscholar   +1 more source

Plasma lipidomic and metabolomic profiles in high‐grade glioma patients before and after 72‐h presurgery water‐only fasting

Molecular Oncology, EarlyView.
Presurgery 72‐h fasting in GB patients leads to adaptations of plasma lipids and polar metabolites. Fasting reduces lysophosphatidylcholines and increases free fatty acids, shifts triglycerides toward long‐chain TGs and increases branched‐chain amino acids, alpha aminobutyric acid, and uric acid.
Iris Divé, Lisa Hahnefeld, Katharina J. Wenger, Donat Kögel, Joachim Steinbach, Gerd Geisslinger, Michael W. Ronellenfitsch, Irmgard Tegeder   +7 more
wiley   +1 more source

Influence of radiation on borosilicate glass leaching behaviors

npj Materials Degradation
Vitrification is widely recognized as a promising method for the geological disposal of high-level radioactive waste (HLW) worldwide. To ensure the safe disposal of radioactive waste, the borosilicate glass that vitrifies HLW must exhibit exceptional ...
Kemian Qin, Buyun Zhang, Zhaoxuan Jin, Yuchuan Wang, Yuhe Pan, Yuqian Sun, Kai Bai, Shikun Zhu, Tieshan Wang, Haibo Peng   +9 more
doaj   +1 more source

Assessment of Average Tracer Concentration Approach for Flow Rate Measurement and Field Calibration

Atom Indonesia, 2015
Tracer method is one of the methods available for open channel flow rate measurements such as in irrigation canals. Average tracer concentration approach is an instantaneous injection method that based on the average tracer concentrations value at the ...
P. Sidauruk, Satrio, E.R. Pujiindiyati
doaj   +1 more source

K isotopes as a tracer for continental weathering and geological K cycling

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance The potassium stable isotope system is a powerful new geochemical tool for understanding continental weathering linked to Earth’s climate.
Shilei Li, Weiqiang Li, B. Beard, M. Raymo, Xiaoming Wang, Yang Chen, Jun Chen   +6 more
semanticscholar   +1 more source

The Separation of Isotopes [PDF]

Proceedings of the National Academy of Sciences, 1923
James Kendall, E. D. Crittenden
openaire   +5 more sources

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

Molecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez, Pablo Juanes‐Velasco, Marina L. García‐Vaquero, Conrad Droste, Alicia Landeira‐Viñuela, Miguel Alcoceba, Helena Fidalgo‐Gómez, Sara Misiego‐Herrero, Almudena Navarro‐Bailón, Mónica Baile, José M. Bastida, Jose Manuel Sanchez‐Santos, Rafael Góngora, Julia Almeida, Marcos Gonzalez‐Diaz, Alberto Orfao, Javier De Las Rivas, Manuel Fuentes   +17 more
wiley   +1 more source