Results 171 to 180 of about 365 (210)

Unprecedented continental drying, shrinking freshwater availability, and increasing land contributions to sea level rise. [PDF]

Sci Adv
Chandanpurkar HA, Famiglietti JS, Gopalan K, Wiese DN, Wada Y, Kakinuma K, Reager JT, Zhang F.   +7 more
europepmc   +1 more source

A chronology of global air quality. [PDF]

Philos Trans A Math Phys Eng Sci, 2020
Fowler D, Brimblecombe P, Burrows J, Heal MR, Grennfelt P, Stevenson DS, Jowett A, Nemitz E, Coyle M, Lui X, Chang Y, Fuller GW, Sutton MA, Klimont Z, Unsworth MH, Vieno M.   +15 more
europepmc   +1 more source

Extreme Events Contributing to Tipping Elements and Tipping Points. [PDF]

Surv Geophys
Romanou A, Hegerl GC, Seneviratne SI, Abis B, Bastos A, Conversi A, Landolfi A, Kim H, Lerner PE, Mekus J, Otto-Bliesner BL, Pausata FSR, Pinto I, Suarez-Guiterrez L.   +13 more
europepmc   +1 more source

Ein Ruthenium‐(Ph‐BPE) Katalysator für die asymmetrische Alkinylierung von Fluoral: Enantioselektion aus einem von 12 fluxionalen Komplexen mit rutheniumzentrierter Stereogenität

Angewandte Chemie, EarlyView.
Dies beschreibt die ersten enantioselektiven Alkinylierungen wässrigen Fluorals. Diese Prozesse werden durch einen Iodid‐gebundenen Ruthenium‐(Ph‐BPE)‐Komplex katalysiert, welcher als oktaedrischer Metallkomplex in 12 verschiedenen stereoisomeren Formen vorliegen kann.
Weijia Shen, Sebastian Höthker, Colin E. Hayter, Nicholas K. Bowers, Andrea Pellegrini, Stefan Grimme, Michael J. Krische   +6 more
wiley   +1 more source

The Danish helicopter emergency medical service database: high quality data with great potential. [PDF]

Scand J Trauma Resusc Emerg Med, 2019
Alstrup K, Petersen JAK, Barfod C, Knudsen L, Rognås L, Møller TP.   +5 more
europepmc   +1 more source

The UFLUX ensemble of multiple-scale carbon, water, and energy fluxes. [PDF]

Sci Data
Zhu S, Xu J, Zeng J, Bao S, Chen Y, Shi S, Zheng Z, Dong W, Wang Y, Shi J.   +9 more
europepmc   +1 more source

A Ruthenium‐(Ph‐BPE) Catalyst for Asymmetric Alkynylation of Fluoral: Enantioselection From 1 of 12 Fluxional Stereogenic‐at‐Ruthenium Complexes

Angewandte Chemie International Edition, EarlyView.
The first enantioselective alkynylations of aqueous fluoral are described. These processes are catalyzed by an iodide‐bound ruthenium‐(Ph‐BPE)‐catalyst; an octahedral metal complex that can exist as 12 diastereomeric‐at‐metal isomers. Calculations reveal that 2 of 12 stereoisomeric complexes account for 99.9% of the Boltzmann population and that ...
Weijia Shen, Sebastian Höthker, Colin E. Hayter, Nicholas K. Bowers, Andrea Pellegrini, Stefan Grimme, Michael J. Krische   +6 more
wiley   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source