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Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.

Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.

Cold waving solutions quickly reduce cystine to cysteine in hair.

Hair shine can be measured by how it reflects laser light.

Felting wool changes its fatty acid makeup, affecting its structure and water resistance.

Ozonated water damages hair structure and proteins.

Hair feels different when touched and rubs together in various ways.

Cysteine formation on hair indicates damage, best detected at pH 4.5.

Changes in keratin make hair follicles stiffer.

Scientists created 3D hair-like structures that could help study hair growth and test treatments.

Concrete made from animal bones and human hair is stronger and more environmentally friendly than traditional concrete.

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.

Dyed chitin nanofibers are strong, colorful, and water-resistant, enhancing resin strength and color.

Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.

The conclusion cannot be provided because the document is not accessible.

Nonlinear artificial neural networks are better at identifying different types of animal hair than linear ones.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Both a lock of hair and a single hair strand can show chronic drug use, but at least six single hairs are needed for accurate results.

Hair properties change under electromagnetic fields and are influenced by individual characteristics and the environment.

Goat hair follicles have insulin-like growth factor-I receptors that might affect hair growth, but no melatonin receptors were found.

Low ERCC3 gene activity is linked to non-pigmented hair growth.

Certain genes are linked to the quality of cashmere in goats.