Results 111 to 120 of about 422,909 (274)

Scalar–tensor baryogenesis: a scalar–tensor completion of gravitational baryogenesis

Physics Letters B
We propose Scalar–Tensor Baryogenesis (STB), in which the CP-violating bias needed for baryogenesis is sourced by the gravitational scalars that appear in scalar–tensor representations of modified gravity.
David S. Pereira
doaj   +1 more source

In Evangelium Joannis (c.8)

Archivo Teológico Granadino, 2008
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Luis del Alcázar
doaj  

A CFD Analysis of the Desalination Performance of Ceramic-Based Hollow Fiber Membranes in Direct Contact Membrane Distillation

Ceramics
In this numerical study, the performance of ceramic-based mullite hollow fiber (HF) membranes in a direct contact membrane distillation (DCMD) process was evaluated.
MHD Maher Alrefaai, Mohd Hafiz Dzarfan Othman, Mohammad Rava, Zhong Sheng Tai, Abolfazl Asnaghi, Mohd Hafiz Puteh, Juhana Jaafar, Mukhlis A. Rahman, Mohammed Faleh Abd Al-Ogaili   +8 more
doaj   +1 more source

Efficient and Selective Removal of Palladium from Simulated High-Level Liquid Waste Using a Silica-Based Adsorbent NTAamide(C8)/SiO₂-P

Nanomaterials
In order to realize the effective separation of palladium from high-level liquid waste (HLLW), a ligand-supported adsorbent (NTAamide(C8)/SiO2-P) was prepared by the impregnation method in a vacuum.
Jiaxuan Shi, Junli Wang, Wentao Wang, Xuan Wu, Hui Wang, Jianwei Li   +5 more
doaj   +1 more source

Asymmetrische α‐Alkylierung mit aktivierten und unaktivierten Elektrophilen durch einen hocheffizienten und rezyklierbaren Lewis‐Säure/Imidazolium‐Katalysator

Angewandte Chemie, EarlyView.
Ein luftstabiler, einfach herzustellender bifunktioneller Cu(II)/Imidazolium‐Komplex ermöglicht hoch enantioselektive α‐Alkylierungen von 1,3‐Dicarbonylverbindungen mit herausragender Produktivität (TON bis zu 1740). Zu den hervorzuhebenden Merkmalen zählen ein breites Elektrophilspektrum, das sowohl π‐aktivierte als auch nicht aktivierte Reagenzien ...
Johanna Haußmann, Alexander Beck, Dominik Hornung, Michael Mistele, Alexander Allgaier, Wolfgang Frey, Joris van Slageren, Johannes Kästner, René Peters   +8 more
wiley   +1 more source

Isolation and Reactivity of a Square‐Planar Trisamido Silane

Angewandte Chemie International Edition, EarlyView.
We report the synthesis and comprehensive characterisation of a square‐planar Si(+IV) hydride supported by an unsymmetric, trianionic and dearomatised N,N,N‐pincer ligand. This system enables element–ligand cooperative reactivity as an alternative to silicon‐centred redox chemistry, illuminating a largely unexplored regime in high‐valent silicon ...
David M. J. Krengel, Xiaobai Wang, Christopher Golz, Regine Herbst‐Irmer, Oliver P. E. Townrow, Malte Fischer   +5 more
wiley   +1 more source

Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis

Adsorption Science & Technology, 2010
A recent pathway for obtaining regular mesoporous materials (silicas and carbons) in one step was explored in this work using TEOS, P123 and sucrose as a starting base template. The synthesis was catalyzed by H 2 SO 4 . The mesoporous carbon was obtained
João Pires, Susana Borges, Ana P. Carvalho, Ana R. Silva   +3 more
doaj   +1 more source

Dynamic tensiometry of biocolloids [PDF]

, 2008
Hyaluronová kyselina je v současné době velmi významná biomolekula používaná v medicíně a kosmetice, a její výzkum je důležitý pro další budoucí použití.
Kulilová, Pavlína
core  

Pinprick C8

, 2021
A short clip of a neurological exam. A neurologist is testing sensation to pinprick (pain and temperature) in hand distal to proximal, C8 dermatome hand. Clinician: Anita Florendo-Cumbermack MBBS, MHPE, FRCPC, CSCN (EMG) https://ir.lib.uwo.ca/neuro_sensory/1003/thumbnail ...
openaire   +1 more source

Asymmetric α‐Alkylation With Activated and Unactivated Electrophiles by a Highly Productive and Recyclable Lewis Acid/Imidazolium Catalyst

Angewandte Chemie International Edition, EarlyView.
An air‐stable, easily prepared, bifunctional Cu(II)/imidazolium complex enables highly enantioselective α‐alkylation of 1,3‐dicarbonyls with outstanding productivity (TON up to 1740). Highlights include broad electrophile scope spanning π‐activated and nonactivated reagents, stereo‐retentive allylation, simple catalyst synthesis, and efficient catalyst
Johanna Haußmann, Alexander Beck, Dominik Hornung, Michael Mistele, Alexander Allgaier, Wolfgang Frey, Joris van Slageren, Johannes Kästner, René Peters   +8 more
wiley   +1 more source