Results 161 to 170 of about 142,936 (307)

Análise das flutuações na efetividade da barreira biogeográfica do Amazonas através da datação das divergências de espécies-irmãs entre o Brasil e o Caribe [PDF]

, 2011
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.Estudos de biogeografia auxiliam no entendimento melhor sobre a biosfera, a história da Terra, e os processos que atuam na formação e diferenciação de ...
Lastrucci, Naomi Silveira
core  

Nucleophilic Gallyl Anions Enable Ga─Au Bimetallic Ammonia Activation

Angewandte Chemie, EarlyView.
Unlocking gallyl nucleophiles: Counterion control enables formation of an unsupported gallyl─gold complex. Gold coordination induces a polarity switch at gallium, enabling cooperative activation of NH3 and related N─H/O─H substrates under mild conditions.
Hellen Videa, Keelan M. Byrne, Tobias Krämer, Antonio J. Martínez‐Martínez   +3 more
wiley   +2 more sources

Ordered Pt3Mn Intermetallic Nanoparticles Supported on Atomically Dispersed Mn–N–C as Electrocatalysts for Fuel Cells

Angewandte Chemie, EarlyView.
Ordered L12‐Pt3Mn intermetallic alloys are uniformly deposited onto atomically dispersed Mn–N–C supports. The synergistic effect between MnN4 sites and Pt3Mn elevates interfacial binding strength and dissolution barriers while favorably weakening *OH adsorption. It delivers exceptional catalytic activity and stability in fuel cells, serving as an ideal
Gongjin Chen, Tianshuai Wang, Xiaoyi Qiu, Shiyuan Liu, Cunpu Li, Zidong Wei, Wei Xing, Haijiang Wang, Minhua Shao   +8 more
wiley   +2 more sources

Trace elements deportment in gold process solutions

, 2010
The deportment and speciation of trace elements during mining and minerals processing is becoming an area of increasing concern with regards to potential health and environment risks within the immediate vicinity and surrounding area of mining and ...
May, P., Kyle, J., Gella, V.
core  

Selenium in Agricultural Products: Advances in Detection of Total Content and Speciation. [PDF]

Foods
Yu Y, Zhao L, Tang C, Zhao Q, Qin Y, Zhang J.   +5 more
europepmc   +1 more source

Native Cryo-Correlative Light and Synchrotron X‑ray Fluorescence Imaging of Proteins and Essential Metals in Subcellular Neuronal Compartments

Chemical & Biomedical Imaging
Richard Ortega, Mónica Fernández-Monreal, Noémie Pied, Stéphane Roudeau, Peter Cloetens, Asuncion Carmona   +5 more
doaj   +1 more source

Reactive Paper Spray Mass Spectrometry Enables Speciation of Trace Levels of Mercuric Halides. [PDF]

Anal Chem
Bahramsari MB, Tanim-Al Hassan M, Chen H, Khalizov AF.   +3 more
europepmc   +1 more source

Evolution of genome-wide barriers to gene flow during complex speciation in rattlesnakes. [PDF]

Proc Natl Acad Sci U S A
Farleigh K, Highland DK, Alderman MG, Francioli Y, Hirst SR, Faber EM, Perry BW, Holding ML, Castañeda-Gaytán G, Borja M, Franz-Chávez H, Parkinson CL, Strickland JL, Margres MJ, Mackessy SP, Meik JM, Castoe TA, Schield DR.   +17 more
europepmc   +1 more source

Ion speciation in milk-like systems

, 2010
The research described in this thesis is about ion behaviour in milk systems as a function of changing conditions (pH, ionic strength, addition of electrolytes and non-electrolytes).
Gao, R.
core  

Preserving Gadolinium Speciation in Environmental Waters: Establishing Hold Times and Storage Protocols for Reliable Analysis. [PDF]

ACS ES T Water
Ezzaldine A, Kanaththage M, Rubasinghege G, Frey B, Escobar GP, Coyte R.   +5 more
europepmc   +1 more source