Results 121 to 130 of about 532,129 (293)

Total N difference method and 15N isotope dilution methode - A comparative study on N-fixation [PDF]

open access: yes, 2002
In the study, the 15N fixation of a number of green manure crops were studied using either the 15N dilution technique, or the simple total N difference method.
Müller, Dr. Torsten   +1 more
core  

Streaming potential analysis of hair variation: Ethnicities and environmental exposures

open access: yesInternational Journal of Cosmetic Science, EarlyView.
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   +2 more
wiley   +1 more source

Perceptions of female age, health and attractiveness vary with systematic hair manipulations

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Two experiments were conducted to study how lay individuals evaluate systematic changes in female head hair. The results showed that participants tended to rate high‐shine hair more favourably than lower‐shine hair. When combining shine with alignment and volume, straight‐aligned hair with high shine and low volume was generally perceived as more ...
Susanne Will   +8 more
wiley   +1 more source

Passive Austreibung von Rapserdflohlarven (Psylliodes chrysocephala L.)

open access: yesJournal für Kulturpflanzen, 2016
Die Studie stellt eine einfache, aber nicht sehr weit verbreitete Methode vor, um quantitativ den Befall von Winterrapspflanzen mit Larven von Psylliodes chrysocephala zu bestimmen.
Nils Conrad, Meike Brandes, Udo Heimbach
doaj  

Reinventing henna: Enzyme‐catalysed colour release from stabilized Lawsonia inermis L. extracts

open access: yesInternational Journal of Cosmetic Science, EarlyView.
The instability and reduced dyeing performance of a cosmetic formulation containing 2‐hydroxy‐1,4‐naphthoquinone (lawsone), derived from Lawsonia inermis L., is demonstrated in comparison to a novel two‐component system. This system comprises one formulation with naturally occurring lawsone precursors and a second containing a specific hydrolase ...
Nele Dallmann   +2 more
wiley   +1 more source

Antioxidative and chaperone‐like activities of a bacterioruberin‐rich extract: An innovative approach to protect the skin proteome

open access: yesInternational Journal of Cosmetic Science, EarlyView.
The bacteriorubin‐rich extract of Arthrobacter agilis has high antioxidative properties, protecting proteins against oxidative stress and preventing their carbonylation. It also protects proteins against saline and heat stresses, suggesting a dual mode of action including antioxidant and chaperone‐like activities.
Julie C. Tisserand   +7 more
wiley   +1 more source

Electrokinetic analysis reveals common conditioner ingredient interactions with human hair

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Novel electrokinetic analysis reveals how cationic surfactant deposition on hair is influenced by chain length and counterion mobility. Longer‐chain surfactants show superior adsorption through enhanced van der Waals interactions, while chloride counterions enable stronger electrostatic interactions.
Huijun Phoebe Tham   +4 more
wiley   +1 more source

Natural‐based antioxidants in cosmeceuticals: Extraction, bioavailability and skin ageing applications

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Natural antioxidants from plants, fruits, seeds and fungi combat ageing by neutralizing free radicals, boosting collagen and protecting against UV damage. Enhanced by green extraction and smart delivery systems, they offer powerful anti‐inflammatory and antimicrobial benefits.
Hossein Omidian   +2 more
wiley   +1 more source

A method for the consistent production of high quality antisera to small peptide hormones [PDF]

open access: yes, 1978
Madler, M.   +3 more
core   +1 more source

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