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Hair Weave
Artificial hair integrations, more commonly known as hair extensions, hair weaves, or fake hair, are cosmetic treatments which add length to human hair. Hair extensions are usually clipped, glued, or sewn on natural hair by incorporating additional human or synthetic hair. These methods include tape-in extensions, clip-in or clip-on extensions, micro/nano rings, fusion method, weaving method, and wigs. Background A hair weave is a human or artificial hair utilized for integration with one's natural hair. Weaves can alter one's appearance for long or short periods of time by adding further hair to one's natural hair or by covering the natural hair together with human or synthetic hairpieces. Weaving additional human or synthetic pieces can enhance one's hair by giving it volume and length, and by adding color without the damage of chemicals or by adopting a different hair texture than that of their own. However, hair loss can occur either along the front hairline or above the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Hair
Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin. Attitudes towards different forms of hair, such as hairstyles and hair removal, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal beliefs or social position, such as their age, gender, or religion. Overview Meaning The word "hair" usually refers to two distinct structures: #the part beneath the skin, called the hair follicle, or, when pulled from the skin, the bulb or root. This organ is located in the dermis and maintains stem cells, which not only re-grow the hair after it f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrylic Fiber
Acrylic fibers are synthetic fibers made from a polymer ( polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. For a fiber to be called "acrylic" in the US, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. DuPont created the first acrylic fibers in 1941 and trademarked them under the name Orlon. It was first developed in the mid-1940s but was not produced in large quantities until the 1950s. Strong and warm, acrylic fiber is often used for sweaters and tracksuits and as linings for boots and gloves, as well as in furnishing fabrics and carpets. It is manufactured as a filament, then cut into short staple lengths similar to wool hairs, and spun into yarn. Modacrylic is a modified acrylic fiber that contains at least 35% and at most 85% acrylonitrile. Vinylidene chloride or vinyl bromide used in modacrylic give the fiber flame retardant properties. End-uses of modacry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Appearance
Human physical appearance is the outward phenotype or look of human beings. There are functionally infinite variations in human phenotypes, though society reduces the variability to distinct categories. The physical appearance of humans, in particular those attributes which are regarded as important for physical attractiveness, are believed by anthropologists to affect the development of personality significantly and social relations. Many humans are acutely sensitive to their physical appearance. Some differences in human appearance are genetic, others are the result of age, lifestyle or disease, and many are the result of personal adornment. Some people have linked some differences with ethnicity, such as skeletal shape, prognathism or elongated stride. Different cultures place different degrees of emphasis on physical appearance and its importance to social status and other phenomena. Aspects Various aspects are considered relevant to the physical appearance of humans. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wigs
A wig is a head covering made from human or animal hair, or a synthetic imitation thereof. The word is short for "periwig". Wigs may be worn to disguise baldness, to alter the wearer's appearance, or as part of certain professional uniforms. History Ancient and medieval use In Egyptian society men and women commonly had clean-shaven or close-cropped hair and often wore wigs. The ancient Egyptians created the wig to shield shaved, hairless heads from the sun. They also wore the wigs on top of their hair using beeswax and resin to keep the wigs in place. Wealthy Egyptians would wear elaborate wigs and scented head cones of animal fat on top of their wigs. Other ancient cultures, including the ancient Assyrians, Assyrians, Phoenicians, Jews in Kingdom_of_Israel_(other), ancient Israel and Judaea (Roman province), Judea, Ancient Greeks, Greeks, and ancient Rome, Romans, also used wigs as an everyday fashion. In China, the popularization of the wig started in the Spring a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hairstyles
A hairstyle, hairdo, haircut, or coiffure refers to the styling of hair, usually on the human head but sometimes on the face or body. The fashioning of hair can be considered an aspect of personal grooming, fashion, and cosmetics, although practical, cultural, and popular considerations also influence some hairstyles. The oldest known depiction of hair styling is hair braiding, which dates back about 30,000 years. Women's hair was often elaborately and carefully dressed in special ways, though it was also frequently kept covered outside the home, especially for married women. Prehistory and history People's hairstyles are largely determined by the fashions of the culture they live in. Hairstyles are markers and signifiers of social class, age, marital status, racial identification, political beliefs, and attitudes about gender. Some people may cover their hair totally or partially for cultural or religious reasons. Notable examples of head covering include women in Islam w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Hairstyles
This is a non-exhaustive list of hairstyles, excluding List of facial hairstyles, facial hairstyles. Short hairstyles Long hairstyles Long hairstyles may be considered those which reach beyond the shoulders on women, or require long hair to create, and past the chin on men. Any length styles See also * Eponymous hairstyle * Hairstyles in the 1950s * Hairstyles in the 1980s * Hairstyles of Japanese women * List of facial hairstyles * References External links * * {{Human hair Hairstyles, * Fashion-related lists, Hairstyles Arts-related lists, Hairstyles Human biology-related lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patch Test
A patch test is a diagnostic method used to determine which specific substances cause allergic inflammation of a patient's skin. Patch testing helps identify which substances may be causing a delayed-type allergic reaction in a patient and may identify allergens not identified by blood testing or skin prick testing. It is intended to produce a local allergic reaction on a small area of the patient's back, where the diluted chemicals were planted. The chemicals included in the patch test kit are the offenders in approximately 85–90 percent of contact allergic eczema and include chemicals present in metals (''e.g.'', nickel), rubber, leather, formaldehyde, lanolin, fragrance, toiletries, hair dyes, medicine, pharmaceutical items, food, drink, preservative, and other additives. Mechanism A patch test relies on the principle of a type IV hypersensitivity reaction. The first step in becoming allergic is sensitization. When skin is exposed to an allergen, the antigen-pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Young Woman (Adriana) At Tourist Office - Cachoeira - Bahia - Brazil
A woman is an adult female human. Before adulthood, a female child or adolescent is referred to as a girl. Typically, women are of the female sex and inherit a pair of X chromosomes, one from each parent, and women with functional uteruses are capable of pregnancy and giving birth from puberty until menopause. More generally, sex differentiation of the female fetus is governed by the lack of a present, or functioning, ''SRY'' gene on either one of the respective sex chromosomes. Female anatomy is distinguished from male anatomy by the female reproductive system, which includes the ovaries, fallopian tubes, uterus, vagina, and vulva. An adult woman generally has a wider pelvis, broader hips, and larger breasts than an adult man. These characteristics facilitate childbirth and breastfeeding. Women typically have less facial and other body hair, have a higher body fat composition, and are on average shorter and less muscular than men. Throughout human history, traditional gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venkateswara
Venkateswara (, ), also known as Venkatachalapati, Venkata, Balaji and Srinivasa, is a Hindu deity, described as a form or avatar of the god Vishnu. He is the presiding deity of Venkateswara Temple, Tirumala, Venkateswara Temple, Tirupati. His consorts, Padmavati (Hinduism), Padmavati and Bhudevi, are avatars of the goddess Lakshmi, the consort of Vishnu. Etymology and other names Venkateswara literally means "Lord of Venkata (hill), Venkata". The word is a combination of the words ''Venkata'' (the name of a hill in Andhra Pradesh) and ''iśvara'' ("Lord"). According to the ''Brahmanda Purana, Brahmanda'' and ''Bhavishya Purana, Bhavishyottara'' Puranas, the word "Venkata" means "destroyer of sins", deriving from the Sanskrit words ''vem'' (sins) and ''kata'' (power of immunity). Venkateswara is known by many names such as Srinivasa (''in whom Lakshmi dwells''), Narayana (''The Primordial One''), Perumal (''the great lord''), Malayappa (''the lord of the Hill'') and Govinda ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyester
Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing. Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less Fireproofing, fire-resistant and can melt when ignited. Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vinyl Chloride
Vinyl chloride is an organochloride with the formula H2C =CHCl. It is also called vinyl chloride monomer (VCM) or chloroethene. It is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC). Vinyl chloride is a colourless flammable gas that has a sweet odor and is carcinogenic. Vinyl chloride monomer is among the top twenty largest petrochemicals (petroleum-derived chemicals) in world production. The United States remains the largest vinyl chloride manufacturing region because of its low-production-cost position in chlorine and ethylene raw materials. China is also a large manufacturer and one of the largest consumers of vinyl chloride. It can be formed in the environment when soil organisms break down chlorinated solvents. Vinyl chloride that is released by industries or formed by the breakdown of other chlorinated chemicals can enter the air and drinking water supplies. Vinyl chloride is a common contaminant found near landfills. Before the 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrylonitrile
Acrylonitrile is an organic compound with the formula and the structure . It is a colorless, volatile liquid. It has a pungent odor of garlic or onions. Its molecular structure consists of a vinyl group () linked to a nitrile (). It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. It is reactive and toxic at low doses. Acrylonitrile is one of the components of ABS plastic (acrylonitrile butadiene styrene). Structure and basic properties Acrylonitrile is an organic compound with the formula and the structure . It is a colorless, volatile liquid although commercial samples can be yellow due to impurities. It has a pungent odor of garlic or onions. Its molecular structure consists of a vinyl group () linked to a nitrile (). It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. It is reactive and toxic at low doses. Production Acrylonitrile was first synthesized by the French chemist Charle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
