Keratosis pilaris (KP; also follicular keratosis, lichen pilaris, or colloquially chicken skin) is a common, autosomal-dominant, genetic condition of the skins hair follicles characterized by the appearance of possibly itchy, small, gooseflesh-like bumps, with varying degrees of reddening or inflammation. It most often appears on the outer sides of the upper arms (the forearms can also be affected), thighs, face, back, and buttocks; KP can also occur on the hands, and tops of legs, sides, or any body part except glabrous (hairless) skin (like the palms or soles of feet). Often the lesions can appear on the face, which may be mistaken for acne or folliculitis. The several types of KP have been associated with pregnancy, type 1 diabetes mellitus, obesity, dry skin, allergic diseases (e.g., atopic dermatitis), and rarely cancer. Many rarer types of the disorder are part of inherited genetic syndromes.The cause of KP is not completely understood. As of 2018, KP is thought to be due to abnormalities in the process of depositing the protein keratin in hair follicles, abnormalities in the hair shaft, or both. KP is usually diagnosed by a medical professional based on the appearance of the skin, but dermoscopy can be used, as well, if the diagnosis is unclear. Variants of the ABCA12 gene have been associated with KP.KP is the most common disorder of the hair follicle in children. How common KP is in adults is unclear, with estimates ranging from 0.75 to 34% of the population.
But crafts have undergone deep structural changes since and during the era of the Industrial Revolution. The mass production of goods by large-scale industry has limited crafts to market segments in which industrys modes of functioning or its mass-produced goods do not satisfy the preferences of potential buyers. As an outcome of these changes, craftspeople today increasingly make use of semi-finished components or materials and adapt these to their customers requirements or demands. Thus, they participate in a certain division of labour between industry and craft. Classification
There are three aspects to human creativity - art, crafts, and science. Roughly determined, art relies upon intuitive sensing, vision and expression, crafts upon sophisticated technique and science upon knowledge. Handicraft
Handicraft is the "traditional" main sector of the crafts, it is a type of work where useful and decorative devices are made completely by hand or by using only simple tools. The term is usually applied to traditional means of making goods. The individual artisanship of the items is a paramount criterion, such items often have cultural and/or religious significance. Items made by mass production or machines are not handicraft goods. Handicraft goods are made with craft production processes. The beginning of crafts in areas like the Ottoman Empire involved the governing bodies requiring members of the city who were skilled at creating goods to open shops in the center of town.