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WOODS LIGHT [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-02-24

English

Subject field(s)
  • Medical and Surgical Equipment
CONT

Wood's Lamp Examination. Ultraviolet light of 365 nm wavelength is obtained by passing the beam through a Wood's filter composed of nickel oxide containing glass.

French

Domaine(s)
  • Équipement médico-chirurgical
DEF

Filtre de verre qui ne laisse passer que la lumière dont les rayons ultraviolets ont une longueur d'environ de 3,650 [angtröm] (lumière de Wood).

Spanish

Save record 1

Record 2 1996-03-06

English

Subject field(s)
  • The Skin
DEF

An ultraviolet source of light from which all visible rays have been excluded by a Wood's(nickel oxide) filter is an important investigative tool in the diagnosis and treatment of many dermatoses.

CONT

Subtle pigmentary changes can also be better defined with the Wood's light. The ash-leaf shaped hypopigmented macules of tuberous sclerosis are much more easily seen under the Wood's light, especially in the newborn.

French

Domaine(s)
  • Appareil cutané
CONT

La lumière de Wood est la lumière émise par une source d'ultraviolet dont est exclue toute radiation visible par un filtre en oxyde de nickel (filtre de Wood).

CONT

Certains troubles de la pigmentation sont mieux mis en évidence en lumière de Wood, en particulier pour les taches dépigmentées de la sclérose tubéreuse et les taches café au lait de la neurofibromatose.

Spanish

Save record 2

Record 3 1993-06-03

English

Subject field(s)
  • Biochemistry
  • Pulp and Paper
CONT

Cellulose and hemicellulose are inherently white and do not contribute to pulp color. It is generally agreed that "chromophoric groups" on the lignin are principally responsible for color; oxidative mechanisms are believed to convert part of the lignin's phenolic groups to quinone-like substances that are known to absorb light. Heavy metal ions(e. g., iron and copper) are also known to form colored complexes with the phenolic groups. Extractive materials can contribute to the color of mechanical pulps made from resinous woods.

French

Domaine(s)
  • Biochimie
  • Pâtes et papier

Spanish

Save record 3

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