- 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…
We have strands of hair of the culprit and other band members. We tested the hair samples in the lab to find DNA clues of who the hair could belong to.…
What is a medulla? What do forensic scientists use this for? it cells that run through the hair. they use it for showing if chemicals have been in the hair such as bleaching or dying and to look at the shape and pigment of the hair.…
“The average time a woman spends to wash, dry and style her hair is 1 hour and 53 minutes a week. By the time she is 65, she will have spent 7 months of her life doing her hair.” (25 Fun Facts About Hair by Shilpi Tomar). The hair follicles are small holes in our scalp of which our hair grows, the shape and size of the follicle is what determines the type of hair. The different types of hair are, straight, wavy, curly, and spiral coil. There is only two thickness but there is a wide range in that, either thick or thin, but hair texture is only one of the numerous physical variations that exist between ethnic groups. That being said, hair is more than just a way to feel pretty, it is an art form that reflects a society's beliefs and culture.…
Answer: Medulla is a set of cells that runs through a hair. They use it to compare and identify hair.…
By taking samples of hair from the victims and comparing it to the hair samples found at the Lope De Vega ranch instigators were able to conclude that the victims were held there. Investigators used the hairs from the known victim as a control and compared it to the unknown hairs found in the various rooms. Each sample matched one of the victims and lead to investigators to set up a crime scene.…
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.…
to explain how to find the suspect with the hair analysis that we have collected.…
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,…
At times, hair testers may combine hair sample obtained from different parts of the body in order for them to get the necessary amount of hair sample or to get a longer view of your drug usage. The standard for this test is 1.5 inches of hair that is cut from the root.…
Smooth and shiny hair adds to the beauty and personality of an individual. If your hair is rough with split ends and tangles, it is quite unappealing for the beholder and you also feel equally shabby. Some of the most effective hair care tips that should be followed are mentioned below.…
Hair is referenced frequently throughout the novel, and ties nearly all of themes present in the novel together. Janie’s long, beautiful hair is a centerpiece of the novel. Jody, her second husband, makes her tie it up, because, “She was in the store for him to look at, not those others.” (Hurston, 55). Janie’s hair is a weapon, a tool to be used against Jody, so he makes her keep it covered, so no one else can have her. It is symbolic of her lack of her free will. However, as it says in the “How To Read Literature Like A Professor”, a symbols meaning isn’t set in stone. (Foster, 98) Hair also represents the separate races of whites and blacks, and the separate classes that come with that. Mrs. Turner’s hair is close to her head, as that is how a stereotypical white woman’s hair is (however she is not white, she is allegedly pretending to be). This shows that being a white women is preferred. This symbol is extended when Tea Cake has to bury victims of the flood. He inquires a guard about how he’s supposed to tell who gets a coffin (because white people are supposed to get one, but not blacks) when they all look black due to the flood. The guard replies, “Look at they hair.” (Hurston, 171). In this instance, hair is a curse. It separates…
Being a Cosmetologist seems simple enough, many aspiring stylists are often only mesmerized by the fashionable styles and colors but what most don’t realize is that science and cosmetology go hand in hand.…
Correctional Essay on Importance of meeting the standards set by AR 670-1. A soldier is a professional and an expert at all times, Because of this his uniform haircut and general hygiene is held to a professional standard. AR 670-1 is the ruling of this standard in which every soldier must uphold to. A soldier is measured by his/her ability to do his job successfully, tactfully, and professionally. The key to doing a job as a professional is a professional appearance, none know this as much as the Army. In the Army, the regulation that dictates what to look like while on duty is the AR 670-1; this provides an SOP on what to wear and how to groom for both males and females alike. When a job is done for the Army, the soldier is responsible to uphold the Army standards and is challenged to excel in his duties and a substandard looking soldier will never excel in the aforementioned. I’ll start off the main part of the essay by saying that a good portion of what is written in this essay is knowledge from AR 670-1 Wear and Appearance of Army Uniforms and Insignia. A male soldier is responsible for keeping his hair in regulation, that is no longer than 4 inches and off the collar and ears, his facial hair is also subjected stating that unless on profile from and Army Physician, the soldier is responsible for having a clean shave every morning and every day for the duration of his career. Failure to do so is grounds for either a warning from his first line supervisor, a negative counseling form, or even be subject to UCMJ action by his superiors. The requirement for hair grooming standards is necessary to maintain uniformity within a military population. Many hairstyles are acceptable, as long as they are neat and conservative. It is not possible to address every acceptable hairstyle, or what constitutes eccentric or conservative grooming. Therefore, it is the responsibility of leaders at all levels to exercise good…