Results 31 to 40 of about 1,835 (185)

Marines Tertiär (Ober-Miozän) als Höhlenfüllung im Zechstein des Hüggels bei Osnabrück (West-Niedersachsen) : mit 7 Tabellen [PDF]

open access: yes, 2012
An der Basis einer Brekzie aus zechsteinzeitlichen Karbonatgesteinen konnten auf dem Hüggel-Horst Sedimente mit mariner Fauna (Ober-Miozän: Langenfelde-Gram) beobachtet werden. Ihre Fossilführung und Petrographie wird beschrieben. Sie sind in Höhlen, die
Harms, Franz-Jürgen
core  

EURL ECVAM Recommendation on the 3T3 Neutral Red Uptake Cytotoxicity Assay for Acute Oral Toxicity Testing [PDF]

open access: yes, 2013
Acute oral toxicity is currently being assessed by a suite of refinement test methods based on the traditional LD50 lethality test and is, besides skin sensitisation, the only remaining animal test required under REACH Annex VII. In view of assessing the
AMCOFF SVEN PATRIK   +3 more
core   +1 more source

Kinetic Resolutions of Indan Derivatives Using Bacteria [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 2002
Racemic indan derivatives have been resolved by the hydrolysis of amide bonds using Corynebacterium ammoniagenes IFO12612 to produce (S)-amine and (R)-amides. In the kinetic resolution of 1 (N-12-(6-methoxy-indan-1-yl)ethyl]acetamide), it was possible to run the reaction to 44% conversion on a 10-g scale, obtaining (S)-amine 4 ((S)-2-(6-methoxy-indan-1-
Naoki, Tarui   +4 more
openaire   +2 more sources

Experimental and Analytical Tools for the Chemical Recycling of Engineering Plastics – A Multi‐Scale Pyrolysis Study on Polydicyclopentadiene

open access: yesMacromolecular Rapid Communications, Volume 46, Issue 23, December 5, 2025.
The presented work demonstrates the importance of a comprehensive assessment of engineering plastics pyrolysis on the example of Polydicyclopentadiene. Analyses in µg‐, mg‐, and lab‐scale provide insight into mechanisms, yields, and products. An analytical and experimental toolset is showcased, by which the foundation for the assessment of pyrolysis as
Michael Zeller   +2 more
wiley   +1 more source

Relative Reaktivität Alkyl-substituierter Alkene und Cycloalkene gegenüber Diarylcarbenium-Ionen [PDF]

open access: yes, 1986
Nach der Konkurrenzmethode wurden die relativen Reaktivitäten Alkyl-substituierter Alkene 4 gegenüber Diarylmethyl-Kationen 2 bestimmt, die in Gegenwart von Alken-Gemischen aus Diarylmethylchloriden 1 und Lewis-Säuren erzeugt wurden.
Allen   +43 more
core   +1 more source

(E)-2-(4-Bromobenzylidene)indan-1-one [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
Dans le composé du titre, C16H11BrO, le système cyclique dihydroindène est approximativement planaire, avec une déviation maximale de 0,008 (2) Å. Le plan moyen de ce système cyclique forme un angle dièdre de 3,73 (11) °, avec le cycle benzénique bromo-substitué.
Mohamed Ashraf Ali   +4 more
openaire   +3 more sources

LRRC8A Regulates Outer Hair Cell Volume and Electromotility and is Required for Hearing

open access: yesAdvanced Science, Volume 12, Issue 41, November 6, 2025.
This study identifies LRRC8A‐dependent volume‐regulated anion channels (VRACs) as essential for cochlear outer hair cells' electromotility and auditory signal amplification. LRRC8A deficiency disrupts cell volume control, impairs auditory sensitivity, and causes deafness, while targeted LRRC8A re‐expression restores auditory function.
Shengnan Wang   +15 more
wiley   +1 more source

Quantitative and Stereoisomeric Determination of Light Biomarkers in Crude Oil and Coal Samples [PDF]

open access: yes, 1998
Indans and tetralins are considered biological markers (biomarkers). These C9-C11 hydrocarbons are present in small amounts in organic geological samples. Methyl substituted indans or tetralins may possess a stereogenic center (carbon).
Armstrong, Daniel W.   +3 more
core   +2 more sources

2-[(E)-2,5-Dimethoxybenzylidene]indan-1-one [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
En el compuesto del título, C18H16O3, el plano medio del sistema de indano de nueve miembros forma un ángulo diedro de 3,71 (17)° con el anillo de benceno del grupo dimetoxifenilo. La conformación molecular se estabiliza mediante contactos de hidrógeno C-H? O intramoleculares.
Abdullah M. Asiri   +4 more
openaire   +4 more sources

3‐Dicyanomethylene‐Substituted Thienothiophenes as the Terminal Units in Non‐Fullerene Electron Acceptor Molecules for Organic Photovoltaics

open access: yesChemistry – An Asian Journal, Volume 20, Issue 16, August 14, 2025.
3‐Dicyanomethylene thienothiophenes (CNTTs), a new series of electron acceptor units, were developed and incorporated into non‐fullerene acceptors (NFAs). The CNTT‐based NFAs exhibited favorable electronic structures and packing structures and thus enabled organic photovoltaic devices to achieve a power conversion efficiency of 10% when blended with ...
Kensuke Shibahashi   +3 more
wiley   +1 more source

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