Surgery

3-D analysis differentiates fat grafting techniques

(HealthDay)—Autologous fat processed by means of a cotton pad filtration technique is an effective method of facial fat grafting, according to a study published online Jan. 11 in JAMA Facial Plastic Surgery.

Genetics

Is it your second cousin? Cotton swabs may tell you

The precision of DNA testing portrayed on mystery television shows could soon become reality. With a new technique developed at Kyoto University, a simple swab sample can accurately confirm relatedness between two individuals ...

Health

Why you should stop cleaning your ear with cotton swabs

Contrary to popular belief, you shouldn't clean your ears with cotton swabs, as this could lead to hearing loss, damage or worst, said Ear, Nose and Throat (ENT) Senior Consultant Prof Dr Asma Abdullah of the Canselor Tuanku ...

Health

Toxins remain in your clothes

Thousands of chemicals are used in clothes manufacturing. Researchers at Stockholm University have examined if there are chemicals in the clothes we buy as well. Several substances related to health risks were identified ...

Arthritis & Rheumatism

Scientists home in on cause of osteoarthritis pain

Researchers at Rush University Medical Center, in collaboration with researchers at Northwestern University, have identified a molecular mechanism central to the development of osteoarthritis (OA) pain, a finding that could ...

Psychology & Psychiatry

New method: Research team analyzes stress biology in babies

After waking up, the concentration of the stress hormone cortisol in saliva rises considerably; this is true not only for grown-ups but for babies as well. A research team from the Ruhr-Universität Bochum and from Basel ...

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Cotton

Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium. The fiber is almost pure cellulose. The botanical purpose of cotton fiber is to aid in seed dispersal.

The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa, and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa. Cotton was independently domesticated in the Old and New Worlds. The English name derives from the Arabic (al) qutn قُطْن, which began to be used circa 1400 AD.

The fiber most often is spun into yarn or thread and used to make a soft, breathable textile. The use of cotton for fabric is known to date to prehistoric times; fragments of cotton fabric dated from 5000 BC have been excavated in Mexico and Pakistan. Although cultivated since antiquity, it was the invention of the cotton gin that so lowered the cost of production that led to its widespread use, and it is the most widely used natural fiber cloth in clothing today.

Current estimates for world production are about 25 million tonnes annually, accounting for 2.5% of the world's arable land. China is the world's largest producer of cotton, but most of this is used domestically. The United States has been the largest exporter for many years.

This text uses material from Wikipedia, licensed under CC BY-SA