Results 191 to 200 of about 418,939 (359)

Double‐Sided Control of Product Type Preference in the Visible‐Light Initiated Reaction of 1,3‐Dicarbonyl Compounds with Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The demonstrated light‐initiated addition of radicals formed on an active methylene group to styrene derivatives exhibits a product selectivity influenced by the presence of a protic solvent. Under protic conditions, the predominant products are branched compounds with the alkene moiety attached to the methylene group.
Małgorzata Pałyga, Jan Rzepiela, Sebastian Baś   +2 more
wiley   +1 more source

MORTANDAD CATASTRÓFICA DE GUANACOS POR ESTRÉS INVERNAL Y SUS IMPLICACIONES ARQUEOLÓGICAS: EL SITIO ALERO LOS GUANACOS 1, LAGO CARDIEL (PROVINCIA DE SANTA CRUZ, ARGENTINA) CATASTROPHIC MORTALITY OF GUANACOS DUE TO WINTER STRESS AND ITS ARCHAEOLOGICAL IMPLICATIONS: ALERO LOS GUANACOS 1 SITE, LAGO CARDIEL (SANTA CRUZ, ARGENTINA)

Magallania, 2006
El objetivo de este trabajo es discutir las implicaciones tafonómicas y arqueológicas de episodios de mortalidad catastrófica de guanacos provocado por estrés invernal. Para ello se presentan los datos relevados en un sitio ubicado en la margen oeste del
Diego Rindel, Juan Bautista Belardi
doaj  

Hydrous Manganese-iron Oxide Scavenging : Its Effect On Stream Sediment Surveys

, 1967
F. C. Canney
openalex   +1 more source

Heterogeneously Catalyzed Cascade Oxidative Coupling/Dearomative Spirocyclization of Diarylamines: Facile Access to Spiroacridines

Advanced Synthesis &Catalysis, EarlyView.
Abstract Spirocyclic compounds, particularly spirocyclohexadienones, are important in pharmaceuticals due to their biological activity. In this study, we develop a catalytic cascade oxidative spirocyclization of diarylamines for the rapid access to highly functionalized spirocyclohexadienones. Using commercially available recyclable heterogeneous metal
Kenji Matsumoto, Naho Sato, Yoshinori Kobayashi, Kanako Date, Yasuko Okamoto, Touya Kariya, Tsukasa Hirokane, Masahiro Yoshida   +7 more
wiley   +1 more source

Scavenging of Radionuclides in Sea-Water by the Use of Manganese Dioxide and Others

, 1967
Toshiko MOMMA, Kiyoshi Iwashima
openalex   +2 more sources

Responsive Mn‐Ferrite Nanoparticles for Multicolor Magnetic Particle Imaging, Sensing, and Reactive Oxygen Species Degradation

Advanced Sensor Research, EarlyView.
Magnetic particle spectroscopy and imaging represent promising tools, particularly when combined with manganese‐ferrite nanoparticles as versatile theranostic agents. Adjusting the manganese content allows for simultaneous multi‐color tracer detection and reactive oxygen species sensing via magnetic particle spectroscopy and imaging, creating new ...
Fabian H. L. Starsich, Julia Feye, Robert Niβler, Gabriela Da Silva André, Elena Totter, Konrad Scheffler, Florian Thieben, Erik Mayr, Jochen Franke, Tobias Knopp, Inge K. Herrmann   +10 more
wiley   +1 more source

Field Trials of Low‐Cost Bi‐TiO2‐P25 Solar Photo Catalyst for Water Treatment

Advanced Sustainable Systems, EarlyView.
Journey of a low‐cost and easy to synthesize catalyst from development to validation in laboratory, followed by testing for its ability to reduce total coliform and E. Coli in the real‐world water using solar light in rural India. Abstract A low‐cost, easy to make Bi‐TiO2‐P25 composite is synthesized via a reverse micelle sol‐gel route and is tested ...
Ayushi Arora, Victoria E. Porley, Bhim C. Meikap, Ramkrishna Sen, Ankita Debnath, Efthalia Chatzisymeon, Neil Robertson   +6 more
wiley   +1 more source

Anaesthetic waste gas scavenging systems. [PDF]

, 1977
D.W. Bethune, J.M. COLLIS
openalex   +3 more sources

Effect of the Induction Pipe in a Crankcase-Scavenged Two-Cycle Engine

, 1961
Fujio NAGAO, Yuzuru SHIMAMOTO, Masataka Miyake   +2 more
openalex   +2 more sources

Dual Charge Transfer Mechanisms in Intimately Bonded S‐scheme Heterojunction Photocatalyst with Expeditious Activity toward Environmental Remediation

Advanced Sustainable Systems, EarlyView.
A novel MBOdCN S‐scheme heterojunction photocatalyst is fabricated using pristine Mg‐Bi2O3 and grayish g‐C3N4, where dynamic dual charge migration paths occur to accelerate exciton dissociation. This composite catalyst realizes high degradation efficiency of up to 99.56% of oxytetracycline (OTC) removal under optimized conditions. The material exhibits
Potlako J. Mafa, Mope E. Malefane, Francis Opoku, Adewale O. Oladipo, Gcina Mamba, Tunde L. Yusuf, Jemal Fito Nure, Sogolo L. Lebelo, Dan Liu, Jianzhou Gui, Bhekie B. Mamba, Alex T. Kuvarega   +11 more
wiley   +1 more source