- Hair → Produced by keratin the hair has two layers. The inner layer is called the cortex. This gives the hair its colour. The hair grows out of follicles in the dermis.…
In this experiment we found that the width of the hair was 5.25 x10-5 m ±1cm. This proved my hypothesis of 10-4m incorrect, but was very close. Considering that the width of hair varies from person to person and hair to hair, this number seems appropriate. During the experiment we found there were 15 dark lines in one cm of the diffraction pattern created by the hair. This…
The Hair Follicle Stem Cell Niche and the Function of the Rac1 protein within the niche.…
Alopecia areata is an autoimmune disorder which is suddenly loss of hair ranges from random patches in scalp to entire body. Alopecia areata affects both female and male at any age. Whereas there are many treatments available, it is an incurable illness. Also, Alopecia areata may recurrence after treatment. In some patients, hair regrowth back, but some patients experience hair falls and others remains. Each cases is unique. Alopecia areata does not produce physical pain. However, the cosmetic impacts of alopecia can instigate emotional distress. This assay present a definition of Alopecia areata based on its symptoms, causes, treatments.…
A set of cells that runs through a hair. Forensic Scientists use this to distinguish animal hair from human hair.…
Nowadays, hair problems are common for many people. Among several hair-related problems, uncontrolled hair fall is the most annoying issue which is caused due to the lack of proper rest, use of harsh chemicals, and stress. Alopecia is an autoimmune disorder, it can be recognized in both males and females due to the malfunctioning of the immune system. In this, the pattern of hair loss is observed in round patches leading to complete baldness if not diagnosed & treated on time. Today, the typical Alopecia areata treatment in Warwick includes Microneedling process which is very effective & favorable for hair…
To start with, I will provide you with some knowledge about the structure of hair. Hair is made up of two basic parts: The follicle, which is the actively growing root or base of a hair containing DNA and living cells, and the shaft, which is a strand of hair compose of a protein called keratin. The shaft is made up of the medulla (the central core of a hair fiber), the cortex (the region of a hair located outside of the medulla containing granules of pigment), and the cuticle (the tough outer covering of a hair composed of overlapping scales). The medulla is different from person to person. Some are continuous, some are fragmented, some aren’t there at all, and some are even doubled. There are also different types of cuticles, including imbricate, which is what humans have, coronal, which is what rodents have, and spinous, which is what animals such as cats have. With a macroscopic view of hair you can see differences in color, length, and where it is curly, wavy, or straight, but that only scratches the surface of what you can see on hair. With a microscopic view you can see the medullary index (the ratio of diameter of the medulla to the diameter of the hair), cuticle type, cortex color, diameter of the hair, and much more.…
Another clear point that is presented by the Author is Prufrock’s life of fear. As Prufrock said,“With a bald spot in the middle of my hair They will say: ‘How his hair is growing thin!‘”(Lines…
Hair has always been an important aspect of how people define themselves and how other people define them. As such, much like any other defining label,…
Another source discussing hair analysis, emphasizes the problem with the presentation stage in expert witness testimony in court (3). Not only has contamination been a reason for false convictions (1), but also the ways in which the testimony from the hair analysts is worded (3). Investigations of how the phrasing and wording of expert witness testimony impacts the final court decision have been done, revealing the misuse of words in court have contributed to wrongful convictions, which have created the view of unreliability to the science of hair analysis (3). Forensic scientists undergo much stress when entering the courtroom (3), leading to forensic scientists exaggerating the worth of the hair evidence in testimony the hair evidence in…
There are three phases to the hair growth cycle, Miller explains: anagen, catagen, and telogen. During the anagen, or active, stage, hair grows rapidly. Each strand grows for two to four years before entering the catagen phase, a transitional state. After about two weeks, hair reaches its final resting point, the telogen stage. After several months of rest, the inactive older hairs are pushed out by new hairs. "The telogen hairs are those that you find in your comb or at the bottom of the bathtub," says Miller. "The average person loses 50 to 100 of these strands during daily activities."…
increasingly women are beset with the hindrance of shedding their hair to the factor of getting bald. I know that almost all men of their 30s expertise this hair trouble; nonetheless, I never realized that it could additionally occur to females like me.…
students lost their cultural identity was because of the policies that the schools used to…
African-American, or Black, hair is very diverse. It ranges from extremely thin and straight, to extremely thick and curly. Throughout history, it could be seen as a gift and a curse. Hair in previous and modern times is seen as a sign of beauty, but all races are not always treated equally. Problems with identity and the struggle to conform caused many African-Americans to be ashamed of what they were born with. Even today, evidence of the struggles are still present. In the project we hope to learn how the views and opinions have changed throughout history. We would also like to educate others about African-American hair and inform them on the common misconceptions.…
There are two stages of hair on a human head at any time. 90% of hair is in the growth stage. The other 10% is in what is called the resting stage, where it stays for three months. After the resting stage, the hair falls out, and a new hair begins growing in its place.…