Results 71 to 80 of about 1,933,683 (262)

Verifying La Bella Principessa - The science behind the art

open access: yes, 2010
Martin Kemp discusses 'La Bella Principessa', a profile portrait of a Milanese lady, a newly rediscovered work by Leonardo Da Vinci.
Kathryn Barush, Maya Corry, Martin Kemp
core  

Del tratado de la pintura de leonardo [PDF]

open access: yes, 1952
El "Tratado de la Pintura" de Leonardo es unarecopilación de un discípulo sobre notas del granMaestro. Publicado por primera vez en Paris en 1651,no contiene una verdadera teoría del arte, sino losmotivos en los cuales Leonardo se inspiró en su actividad
Leonardo, da Vinci, Ideas y Valores, .
core  

Measuring Corporate Alignment With the Circular Economy: a Text‐Based Circularity Index From Mandatory Non‐Financial Disclosures

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The transition to a circular economy (CE) has become a strategic priority for firms, yet empirical assessments of corporate circularity remain fragmented and heavily dependent on structured indicators or self‐reported metrics. This paper proposes a novel, text‐based circularity index derived from mandatory non‐financial statements of large ...
Giuseppe Pernagallo   +2 more
wiley   +1 more source

A correction on the paper "A Note on Bi-Periodic Leonardo Sequence''

open access: yesArmenian Journal of Mathematics
The generating function in Theorem 3 of our work [1] was computed incorrectly. We provide the new version of Theorem 3 including the corrections to be made in its proof. The authors are grateful to Carlos M. Da Fonseca [2] for identifying this error.  
Paula Maria Machado Cruz Catarino   +1 more
openaire   +1 more source

Benzo[c][1,2,5]Thiadiazole Linkers Enhance the Effectiveness of Cavity‐Containing Supramolecular Photocatalysts

open access: yesChemistry – A European Journal, EarlyView.
Seven novel supramolecular photosensitizers based on benzo[c][1,2,5]thiadiazole (BTZ) tethered to calix[4]arene (C[4]) scaffolds are reported with facile, scalable, and selective syntheses. Their abilities to produce singlet oxygen have been tested through the photo‐oxidation of α‐terpinene.
Leonardo Amicosante   +6 more
wiley   +1 more source

GH172 Difructose Dianhydride I Synthase: A Two‐Stepped Journey via Glycosylation and Cyclization Using QM/MM Metadynamics

open access: yesChemistry – A European Journal, EarlyView.
Unlocking the chemistry of caramel by simulations and experimental validation. αFFase1${\alpha }\rm{FFase1}$ converts inulobiose into difructose dianhydride I, one component of caramel, through two steps: a rate‐limiting glycosylation (with a rare sugar ring flip) followed by a cyclization step, guided by residues E85, K147, and N226.
Santiago Alonso‐Gil   +7 more
wiley   +1 more source

Leonardo Electronic Almanac: Historical Perspective [PDF]

open access: yes, 2010
As Leonardo Electronic Almanac “rekindles” I can’t help but be both nostalgic about the past and hopeful about the future. In looking back to when Leonardo Electronic Almanac (LEA) was founded I think of the challenges that the ield faced in terms of ...
Harris, Craig
core   +1 more source

Leonardo as a visual communication theorist. Principles of written/graphic/visual communication in Leonardo da Vinci's Notebooks

open access: yes
This article is devoted to outlining a theory of graphic/written communication in the frame of a visual communication paradigm in Leonardo da Vinci's notebooks.
Leonardo Romei
core   +1 more source

The Virgin of the Rocks by Leonardo and its botanical symbols

open access: yes, 2023
reservedAttraverso l’analisi delle due versioni della Vergine delle Rocce di Leonardo da Vinci (conservate presso il Louvre di Parigi e la National Gallery di Londra) e dei loro simboli botanici, il presente contributo vuole esporre un emblematico caso ...
ROMANO, MATTEO
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One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

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