Results 111 to 120 of about 7,648,305 (248)

Re-OS and Pb isotope ratios of sediments from Saanich Inlet, Western Canada

, 2006
Re-Os and Pb-Pb isotopic analysis of reduced varved sediments cored in the deeper basin of Saanich Inlet (B.C.) are presented. From core top to 61 cm down-core, spanning approximately the last 100 yrs of sedimentation, 187Os/188Os ratio and Os ...
Poirier, André, André Poirier (7910444)   +1 more
core   +1 more source

Human remains from Arma di Nasino (Liguria) provide novel insights into the paleoecology of early Holocene foragers in northwestern Italy. [PDF]

Sci Rep, 2023
Sparacello VS, Goude G, Varalli A, Dori I, Gravel-Miguel C, Riel-Salvatore J, Palstra SWL, Moggi-Cecchi J, Negrino F, Starnini E.   +9 more
europepmc   +1 more source

Virtual Dating: Isochron Diagrams

, 2004
Virtual Dating teaching package contain exercises, questions and interactive diagrams describing absolute dating techniques used in geology. The Isochron exercise contains interactive (Flash) online exercises that help students to understand radioactive ...
Robert Desharnais
core  

Discovery of the Cyclic Form of MRI pH‐Sensor Z‐OMPD Enables >5% 13C Hyperpolarization by SABRE

Angewandte Chemie International Edition, EarlyView.
With “c‐OMPD”, we discovered a previously unknown 5‐membered lactol structure that arises from the homoaldol condensation of the central metabolite pyruvic acid. We demonstrate that the cyclization equilibrium is of crucial importance for OMPD's function as MRI‐based pH sensor and achieve for the first time 13C polarization levels (>5%) by SABRE in the
Juanita Ferreira, Ivan A. Trofimov, Martin Grashei, Adriana Sacristán‐Martín, Alexander Huber, David Schleicher, Oleksiy Khavryuchenko, Franz Schilling, Andreas B. Schmidt, Max von Delius   +9 more
wiley   +1 more source

High- and ultrahigh-spatial-resolution geochronology. [PDF]

Natl Sci Rev
Li QL, Wang H.
europepmc   +1 more source

High-precision CA-ID-TIMS zircon U-Pb geochronology: a review of the Neoproterozoic time scale. [PDF]

Natl Sci Rev
Yang C, Bowyer F, Condon D.
europepmc   +1 more source

Editorial: "Metal Isotope Analytical Chemistry for Geological and Environmental Sample". [PDF]

Front Chem, 2021
Li C, Hu Z, Yang L, Wei G.
europepmc   +1 more source

Progress in geochronology: not only timing, but also rate. [PDF]

Natl Sci Rev
Li XH.
europepmc   +1 more source

Uncaging Iridium(III) Complexes for Combined Photodynamic and Photoactivated Chemotherapy

Angewandte Chemie International Edition, EarlyView.
Light‐activatable iridium(III) anticancer prodrugs demonstrate how chalcogen coordination controls photoinduced therapeutic activity. Upon visible‐light irradiation, sulfur‐ and selenium‐based caging ligands undergo distinct oxygen‐dependent photoreactions that trigger ligand release and singlet oxygen generation, enabling combined photoactivated ...
Victoria V. L. Müller, Dominik Moreth, Irene Regeni, Lan Wang, Sylvestre Bonnet, Ulrich Schatzschneider   +5 more
wiley   +1 more source

Synchronized Mascarene volcanism reveals 400 kyr cycles in melt supply from the Réunion plume. [PDF]

Nat Commun
Famin V, Quidelleur X, Michon L, Arnould M.   +3 more
europepmc   +1 more source