Kayli Jade Gertsen Skin Evolution Essay Human skin pigmentation is the product of two clines produced by natural selection to adjust levels of constitutive pigmentation to levels of UV radiation (UVR). One cline was generated by high UVR near the equator and led to the evolution of dark‚ photo protective‚ melanin-rich pigmentation. The other was produced by the requirement for UVB photons to sustain cutaneous photosynthesis of vitamin D3 in low-UVB environments‚ and resulted in the evolution of
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Different skin tones in humans are associated with the sun’s UV radiation and geography. UV rays can be used by the human body as a source for Vitamin D‚ which helps make bones stronger by taking in the calcium necessary to create stronger bones. A ton of sun exposure that’s especially strong can be damaging to the human body‚ especially the skin. To solve this problem‚ evolution created a skin tone that was already dark in areas with strong sun exposure to protect the skin from the dangerous rays
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Why Segmentation? Introduction and Definition When it comes to marketing strategies‚ most people spontaneously think about the 4P (Product‚ Price‚ Place‚ Promotion) – maybe extended by three more Ps for marketing services (People‚ Processes‚ Physical Evidence). Market segmentation and the identification of target markets‚ however‚ are an important element of each marketing strategy. They are the basis for determining any particular marketing mix. Literature suggests the following steps: [pic]
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How Our Skins Got Their Color Summary This article states on how we got our skin color. In this article Marvin Harris described how the pigment of our skin originates where we live around the equator. If someone lives around the equator they have high risk of getting rickets‚ or osteomalacia. For example‚ if someone was light skinned living in Australia your chances of getting melanoma is high. The reason the risk is high for light pigmented skin living in Australia‚ is because many of them wear
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beings distinguished by a) physical traits such as hair‚ eyes‚ skin color‚ body shape‚ etc.: traditionally‚ the three primary divisions are Caucasoid‚ Negroid‚ and Mongoloid‚ and the many subdivisions are called races‚ b) blood types‚ c) genetic code patterns‚ d) all their inherited characteristics which are unique to their isolated breeding population. When someone hears the word ‘race’‚ they usually just think of the color of someone’s skin; but race is so much more than that. Your race defines not
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ad was created by anti-skin cancer victoria to fight skin cancer and promote healthy sun without getting cancer. It was aired on tv in 1981 and then went on the become one of Australia’s most successful health ads of all time. The 1980s slip slop ad is a Tv ad and a video about skin cancer. It is a jingle a lot about slip slop slap. The message is to wear sun smart clothing and sunscreen. It appeals to ethos because it instils a fear in the viewer that you could get skin cancer. It has animations
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Illustration Essay: Tanning Causes Melanoma Skin Cancer In December of 2010‚ at the age of forty‚ I was diagnosed with Stage III Metastatic Melanoma. In my early twenties I would tan every day. I would tan outdoors or go into the tanning salon. At the tanning salon I would see the small picture of the danger signs of melanoma‚ only to look right next to it and see the large poster of a gorgeous model with beautifully tanned skin holding the latest indoor tanning lotion. That model’s poster
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true underlining cause of why women use skin-lightening products‚ based on a real-life experience. Here‚ Handa strengthens Glenn’s claim by disclosing her personal life to where she felt that her own skin color was used as a discriminatory factor against her. “They’d sing their chant…“Chocolate face!” would ring in my ears… My heart was beating fast‚ everything felt hot and sweaty.” (Handa‚ 1990‚ p.41) Even though Handa was just like any other kid‚ her skin color was a feature that couldn’t be overlooked
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agreed pressure area care Describe the anatomy and physiology of the skin Pressure sores or decubitus ulcers are the result of a constant deficiency of blood to the tissues over a bony area such as a heel which may have been in contact with a bed or a splint over an extended period of time. The surface of the skin can ulcerate which may become infected – eventually subcutaneous and deeper tissues are damaged besides the heel‚ other areas commonly involved are the skin over the buttocks‚ sacrum
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the epidermal and dermal layer of skin and how each relates to the permanence of fingerprints. The outer layer is known as the epidermis‚ and the inner layer is known as the dermis. The bottom of the epidermis‚is adjacent to the dermis‚ is the generating layer of the epidermis and it is in this layer that new cells are formed. The skin is one of the largest organs in the body. The epidermis has many smaller layers. The dermal layer is the growth layer of skin and feeds the epidermis. The dermal
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