Results 11 to 20 of about 89,044 (183)

Willingness to pay for credence attributes associated with agri‐food products—Evidence from Canada

Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, Volume 71, Issue 3-4, Page 303-327, September-November 2023., 2023
Abstract Credence attributes such as environmental impact, origin, fairness/unfairness, and food safety/health are not available with certainty prior to or at the time of the consumer purchase decision. This creates a problem of imperfect or asymmetric information, leading to suboptimal supply and demand for products with these desirable attributes ...
Ousmane Z. Traoré, Lota D. Tamini, Bernard Korai   +2 more
wiley   +1 more source

Comparing hair tensile testing in the wet and the dry state: Possibilities and limitations for detecting changes of hair properties due to chemical and physical treatments

International Journal of Cosmetic Science, Volume 44, Issue 4, Page 421-430, August 2022., 2022
This investigation focusses, first, on the question to which extent wet and dry tensile tests on human hair may be considered as leading to independent results. Second, we try to assess the sensitivities of wet and dry testing to detect changes of mechanical properties.
Franz J. Wortmann, Jutta M. Quadflieg, Gabriele Wortmann   +2 more
wiley   +1 more source

Chemically characterizing the cortical cell nano‐structure of human hair using atomic force microscopy integrated with infrared spectroscopy (AFM‐IR)

International Journal of Cosmetic Science, Volume 44, Issue 1, Page 42-55, February 2022., 2022
Abstract Objective The use of conventional microscopy and vibrational spectroscopy in the optical region to investigate the chemical nature of hair fibres on a nanometre scale is frustrated by the diffraction limit of light, prohibiting the spectral elucidation of nanoscale sub‐structures that contribute to the bulk properties of hair.
A. P. Fellows, M. T. L. Casford, P. B. Davies   +2 more
wiley   +1 more source

Meadowfoam seed oil as a natural dispersing agent for colorants in lipstick

International Journal of Cosmetic Science, Volume 43, Issue 4, Page 484-493, August 2021., 2021
In this study, a green and sustainable oil, meadowfoam seed oil was evaluated as a pigment dispersing agent and compared to castor oil and octyldodecanol in dispersions and lipsticks. Overall, meadowfoam seed oil’s performance was qualitatively and quantitatively similar to castor oil and octyldodecanol indicating that meadowfoam seed oil is a viable ...
Briana Maktabi, Matthew W. Liberatore, Gabriella Baki   +2 more
wiley   +1 more source

Application de l'oxydoréduction Détermination de la pollution organique des eaux, mesure de la demande chimique en oxygène

, 2004
International audienceThe aim of this study is to illustrate the oxidoreduction reactions for the determination of the organic pollution in water. Firstly, the chemical oxygen demand (COD) is defined and the principle of the spectrophotometric dosage is ...
Mathé, Stéphane, Benbelkacem, Hassen, Loubière, Karine, Foussard, Jean-Noël   +3 more
core   +4 more sources

La micro-échelle en synthèse organique : un outil commun chimie/génie chimique [PDF]

, 2014
Cet article est une restitution courte de la présentation réalisée au cours des JIREC 2013 sur l’enseignement de la notion de changement d’échelle et de passage d’un mode batch à un mode continu en synthèse organique.
Prat, Laurent E., Loubière, Karine, Dechy-Cabaret, Odile   +2 more
core   +3 more sources

Gestion de la chaîne d'approvisionnement en temps de crise: l'influence des capacités dynamiques sur les stratégies de réponse des PME manufacturières canadiennes

Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, Volume 43, Issue 3, September 2026.
ABSTRACT This study examines how dynamic capabilities influence supply chain management in SMEs during systemic crises. A literature review identifies key strategies used by Canadian SMEs to enhance resilience, such as inventory increases, production adjustments, supplier diversification and product adaptation.
Julien Bazile, Said Toumi, Anne‐Marie Côté, Béatrice Dallaire‐Clavet, Zhan Su   +4 more
wiley   +1 more source

Minimalist, bioinspired and sensorial emulsion based on a Ca2+ double cone vector system using Design of Experiment (DoE)

International Journal of Cosmetic Science, Volume 48, Issue 3, Page 489-499, June 2026.
Development of a biomimetic calcium‐based minimalist skin formulation using Design of Experiment (DoE) to correlate key ingredients' effect on the sensory and physico‐chemical properties of the emulsion. Abstract Objectives Innovation is considered a determining factor in the highly competitive environment of the cosmetic industry to introduce products
Marc Lavarde, Marjorie Lassalle, Solène Gouot, Ysaline Corroyer, Clara Marceau, Vincent Briffaut, Stéphane Poigny, Samar Issa   +7 more
wiley   +1 more source

Streaming potential analysis of hair variation: Ethnicities and environmental exposures

International Journal of Cosmetic Science, Volume 48, Issue 2, Page 230-242, April 2026.
Ethnicity and weathering shape electrokinetic behaviour and particle deposition in hair. ζ‐potential magnitudes ranked Caucasian > Indian > Chinese with no significant root‐tip variations. Deposition patterns generally correlate with ζ‐potential but differ by ethnicity, implicating other factors.
Huijun Phoebe Tham, Kah Yuen Yip, Thomas L. Dawson Jr   +2 more
wiley   +1 more source

extraction, composition chimique, propri?t?s physiques et antimicrobiennes [PDF]

, 2009
M?moire de Magister: G?nie Chimique: Alger, Ecole Nationale Polytechnique: 2009e travail porte sur l?extraction de l?huile essentielle de Salvia officinalis L. provenant de trois lots diff?rents par entra?nement ? la vapeur d?eau ? l??chelle semi-pilote.
Legder N?e Chafaa, Ibtissem
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