Results 51 to 60 of about 5,196,013 (375)

Ostracode-based aminostratigraphy and aminochronology of a tufa system in central Spain [PDF]

, 2005
In the Priego area, central Spain, extensive tufa deposits are located in three small tributaries located at the head of the 1000 kmlong Tagus River. The deposits are originated after karst-origin running waters emerged from the confines of the canyons ...
Andrews, Andrews, Arenas, Baker, Blum, Blum, Brook, Buccino, Bull, Cadot, Chafetz, Durán, Emeis, Evans, Ford, Geurts, Golubić, Golubić, Goodfriend, Goodfriend, Hennig, Jacobson, Julià, Kaufman, Kaufman, Knox, Leslie, López Vera, López Vera, Madurga, McCoy, Murray-Wallace, Oviatt, Pedley, Pentecost, Pentecost, Pentecost, Riding, Shackleton, Sohn, Stumm, Symoens, Torres, Torres, Torres, Tzedakis, Virgili   +46 more
core   +2 more sources

Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles

Advanced Engineering Materials, EarlyView.
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk, Julia Grothe, Stefan Kaskel, Heinrich von Lintel, Katja Eichmann, Katrin Jahns, Avinash Hariharan, Abdelrahman Elsayed, Ulrich Krupp   +8 more
wiley   +1 more source

Biodegradable, Humidity‐Insensitive Mask‐Integrated E‐Nose for Sustainable and Non‐Invasive Continuous Breath Analysis

Advanced Functional Materials, EarlyView.
This study introduces a paper‐based biodegradable, humidity‐insensitive e‐nose for real‐time breath analysis, addressing challenges in existing technologies such as humidity interference, high costs, and environmental impact. Featuring hydrophobic polymer coatings, these sensors reliably detect VOCs even in high‐moisture environments.
Indrajit Mondal, Adan Zoabi, Hossam Haick   +2 more
wiley   +1 more source

Antiarrhythmic Activity of Amino Acids Containing Nibentan Derivatives in Case of Symptoms of Occlusive and Reperfusion Arrhythmias

Разработка и регистрация лекарственных средств, 2023
Introduction. Pharmacotherapy of cardiac arrhythmias is one of the urgent problems of modern medicine. The presence of serious side effects, in particular proarrhythmic action, limits the use of known antiarrhythmics in clinical practice.
S. M. Napalkova, O. V. Buyuclinskaya
doaj   +1 more source

Caracterización geoquímica (orgánica) de los moluscos holocenos del Golfo de Cádiz (Andalucía, España) [PDF]

, 1996
This paper deals with amino acid racemization ratios and aspartic acid preservation in Holocene (8ka and 2ka old) and today gastropoda, pelecipoda and echinoderma shells from the Gulf of Cadiz.
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

A preliminary assessment of age at death determination using the nuclear weapons testing 14C activity of dentine and enamel [PDF]

, 2006
Calibration (using CALIBomb) of radiocarbon measurements made on the enamel of human teeth from people born during the nuclear era typically produce 2 possible age ranges that potentially reflect the period of tooth formation.
Black, Sue M., Cook, Gordon T., Dunbar, Elaine, Xu, Sheng   +3 more
core   +1 more source

Oxygen Defect Engineering of Hexagonal Perovskite Oxides to Boost Catalytic Performance for Aerobic Oxidation of Sulfides to Sulfones

Advanced Functional Materials, EarlyView.
Ru‐substituted hexagonal perovskite SrMnO3, featuring face‐shared oxygen species, is designed as an effective heterogeneous catalyst for the aerobic oxidation of sulfides. The catalyst demonstrates high selectivity to sulfones (>99%) under mild reaction conditions (≥30 °C). Ru substitution promotes oxygen vacancy formation of face‐shared oxygen species
Keiju Wachi, Masashi Makizawa, Takeshi Aihara, Shin Kiyohara, Yu Kumagai, Keigo Kamata   +5 more
wiley   +1 more source

Identification of a Tumor Specific, Active-Site Mutation in Casein Kinase 1α by Chemical Proteomics. [PDF]

PLoS ONE, 2016
We describe the identification of a novel, tumor-specific missense mutation in the active site of casein kinase 1α (CSNK1A1) using activity-based proteomics.
Eric S Okerberg, Anna Hainley, Heidi Brown, Arwin Aban, Senait Alemayehu, Ann Shih, Jane Wu, Matthew P Patricelli, John W Kozarich, Tyzoon Nomanbhoy, Jonathan S Rosenblum   +10 more
doaj   +1 more source

A Conformationally Restricted Aspartic Acid Analogue

Acta Crystallographica Section C Crystal Structure Communications, 1996
In the title compound, (1R,2R,3S,4S)-3-benzamido-3-methoxycarbonylbicyclo[2.2.1]heptane-2-carboxylic acid, C17H19NO5, the norbornyl group shows distortion from C2v(mm2) symmetry of the parent hydrocarbon. The values determined for the torsion angles about the N-C[alpha] ([varphi]) and C[alpha]-CO ([psi]) bonds correspond to a semi-extended conformation
Buñuel, Elena, Cativiela, Carlos, Díaz de Villegas, María D., Gálvez, José A.   +3 more
openaire   +3 more sources

A reappraisal of nitrogen-to-protein conversion factors in cassava roots. [S10-05] [PDF]

, 2012
A study was conducted comparing the amino acid profiles of 10 commercial varieties (COL) and 15 clones with the highest levels of nitrogen (HIN) over two years of harvests. The highest nitrogen values detected in roots to date are close to 1.30%.
Ceballos, Hernan, Dufour, Dominique, Hershey, Clair, Morante, Nelson, Morel, Gilles, Reynes, Max, Ricci, Julien, Sanchez, Teresa   +7 more
core