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Microneedles only damage the skin to a depth of 10-15μm, making it difficult for bacteria to enter the bloodstream and giving the body a smaller wound to repair. [6] Further research is required to determine the types of bacteria able to breach the shallow puncture site of microneedles.
CIT should be separated from other contexts in which microneedling devices are used on the skin (e.g., transdermal drug delivery, vaccination). It is a technique for which research is ongoing, but has been used for a number of skin problems including scarring and acne. [1]
Alfred Blaschko, a private practice dermatologist from Berlin, first described and drew the patterns of the lines of Blaschko in 1901. He obtained his data by studying over 140 patients with various nevoid and acquired skin diseases and transposed the visible patterns the diseases followed onto dolls and statues, then compiled the patterns onto a composite schematic of the human body.
The skin functions mainly to protect the body from external penetration (by e.g. harmful substances and microorganisms) and to contain all body fluids. There are two important layers to the human skin: (1) the epidermis and (2) the dermis. For transdermal delivery, drugs must pass through the two sublayers of the epidermis to reach the ...
Feedback in micro-teaching is critical for teacher-trainee improvement. It is the information that a student receives concerning their attempts to imitate certain patterns of teaching. The built-in feedback mechanism in micro-teaching acquaints the trainee with the success of their performance and enables them to evaluate and to improve teaching.
Some skin secretions are associated with body hair. Skin secretions originate from glands that in dermal layer of the epidermis. Sweat, a physiological aid to body temperature regulation, is secreted by eccrine glands. Sebaceous glands secrete the skin lubricant sebum. Sebum is secreted onto the hair shaft and it prevents the hair from splitting.
Turner (1980) first used the term "social skin" in his detailed discussion of how Kayapo culture was constructed and expressed through individual bodies. [10] Inscribed skin highlights an issue that has been central to anthropology since its inception: the question of boundaries between the individual and society, between societies, and between ...
Galvanic skin resistance (GSR) is an older term that refers to the recorded electrical resistance between two electrodes when a very weak current is steadily passed between them. The electrodes are normally placed about an inch apart, and the resistance recorded varies according to the emotional state of the subject.