Results 81 to 90 of about 105,420 (233)

Intermolecular hydrogen bonding of the two independent molecules of N-3,5-dinitrobenzoyl-L-leucine [PDF]

open access: yes, 2000
The title compound, C₁₃H₁₅N₃O₇, crystallizes as two independent molecules which differ in their conformation. Intermolecular hydrogen bonding between the amide and carboxylic acid groups as N-H...O=C interactions results in the formation of one ...
Gallagher, John F.   +2 more
core   +1 more source

Contemporary Reflections on Substantial Kind Change in Avicenna

open access: yesTheoria, EarlyView.
ABSTRACT Contemporary metaphysics, and especially neo‐Aristotelian metaphysics, tackles many of the same problems as Avicenna did. One of these problems is the possibility of substantial kind change. For instance, is it possible for an animal to change its species?
Tuomas E. Tahko
wiley   +1 more source

Exploring the Reactivity of Perphenylheptasilanes: Synthesis of Terminally Functionalized Derivatives

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 7, 6 May 2026.
Different methods to prepare 1,7‐disubstituted tetradecaphenylheptasilanes are explored. The triflated heptasilane TfO‐(SiPh2)7‐OTf reacts with alkali metal halides to produce the 1,7‐dihalogenides X‐(SiPh2)7‐X (X = F, Cl, Br, I). The 1,7‐dihydrogen derivative H‐(SiPh2)7‐H is obtained with LiAlH4 or (i‐Bu)2AlH as reducing agents.
Mike Friebel, Böhme Uwe, Edwin Kroke
wiley   +1 more source

A revision of the Lower Cretaceous foraminiferal genus Falsogaudryinella from northwest Europe and Romania, and its relationship to Uvigerinammina [PDF]

open access: yes, 1995
We emend the definition of the foraminiferal genus Falsogaudryinella Bartenstein, 1977 based on observations of the type species, F. tealbyensis from the Barremian Lower Tealby Clay of Lincolnshire, U.K.
Kaminski, M.A., Neagu, T., Platon, E.
core  

Methyl 2-[(ferrocenylcarbonyl)amino]thiophene-3-carboxylate [PDF]

open access: yes, 2005
The title compound, [Fe(C₅H₅)(C₁₂H₁₀NO₃S)], was synthesized from ferrocenecarboxylic acid and methyl 2-aminothiophene-3-carboxylate in modest yield. The substituted ring system is essentially planar through the amidothienylcarboxylate moiety, η⁵-(C₅H₄ ...
Alley, Steven   +3 more
core   +1 more source

TURAAB: A 34‐Year Dust and Atmospheric Regional Reanalysis for the Middle East, North Africa and Mediterranean—First Insights

open access: yesMeteorological Applications, Volume 33, Issue 3, May/June 2026.
TURAAB: A 34‐year dust and atmospheric regional reanalysis for the Mediterranean–MENA region. We present TURAAB, a 34‐year, 6‐km regional reanalysis integrating meteorology and dust for the Mediterranean–MENA domain. The system demonstrates good behavior, aligning closely with observational and reanalysis products. TURAAB provides a high‐value resource
Platon Patlakas   +6 more
wiley   +1 more source

INTELLECTUAL CAPITAL REPORTING AND DISCLOSURE IN THE ANNUAL REPORTS OF ROMANIAN MANUFACTURING LISTED COMPANIES â€" THEORETICAL FRAMEWORK [PDF]

open access: yes
One of the most researched topic regarding financial reporting and disclosure of today is the way intellectual capital or knowledge assets contributes to the improving of the quality of information disclosed and create or add value to business ...
Bogdan Victoria   +2 more
core  

LODE: Linking Digital Humanities Content to the Web of Data

open access: yes, 2014
Numerous digital humanities projects maintain their data collections in the form of text, images, and metadata. While data may be stored in many formats, from plain text to XML to relational databases, the use of the resource description framework (RDF ...
Allen, Colin   +5 more
core   +1 more source

Theuth versus Thamus: the esoteric Plato revisited [PDF]

open access: yes, 2013
The distinction between esoteric and exoteric readings of Plato will be revisited in this article with respect to two esoteric approaches: the German Tübingen School and the American Straussians (i.e., those interpreters who have been inspired by the ...
Staehler, Tanja
core   +2 more sources

Glass bead games: enumeration of possible polytypes based on two stacking vectors and applications to the iron‐ore sinter phases SFCA and SFCA‐I

open access: yesActa Crystallographica Section A, Volume 82, Issue 3, Page 145-162, May 2026.
General formulas are presented that allow for the enumeration of polytypes based on translationally equivalent layers and two equivalent arrangements of adjacent layers involving distinct possible stacking vectors, t1 and t2. The results have been applied to the polytypism among two different polysomes of the family of so‐called silico‐ferrites of ...
Michael Francesco Salzmann   +3 more
wiley   +1 more source

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