Ultraviolet germicidal irradiation

Skin is the body’s largest organ; it’s all over us and yet we fail to appreciate the many tasks it must do to keep us safe and disease-free. But our skin is more special and more complex than one thinks. Made up of the epidermis and dermis, our skin can resist and repair cuts and burns and many other traumas. Our skin, however, is not invincible and can sometimes fall susceptible to many different diseases and cancers, like melanoma. Melanoma Per Adam Riker, one of the authors of The…

1.1 Background Our skin comprised of two main parts – epidermis and dermis. Epidermis is the superficial and thinner portion which serves to protect the skin and underlying tissues from abrasions, heat, microbes and chemicals. The deeper and thicker connective tissue portion called as dermis hosts several accessory structures of the skin like hair follicles, oil (sebaceous) glands and sweat (sudoriferous) glands. Sebaceous glands secrete greasy substances called sebum that will moistens the…

UVB’s 1. The sun shines on the skin. 2. The UVB light interfaces with a form of cholesterol in the skin called 97-dehydrocholesterol. 3. This is synthesized into pre-vitamin D3, which is immediately converted into vitamin D3. 30 minutes of midday sun in a bathing suit, and you’ve absorbed up to 20,000 IU of vitamin D. Whether you spend half an hour in the midday sun or take 2 10,000 IU of vitamin D3 in tablets, it’s then transported to the liver where it’s turned into D25 for storage. These…

During scorching summers, as the temperature & humidity gets increased oil granules are produced making your skin oily. Summer skin care tips for oily skin helps in reducing the oil and brighten the complexion to give you a natural glow. There are few pros and cons of having oily skin; Pros: Having oily skin you can enjoy a longer period of younger looking skin Wrinkle-free skin No problem of early aging signs Cons: Excessive Shine Meltdown of Makeup Breakout for acne and pimples But instead,…

Are shopping for a portable beach umbrella? There are a number of factors you have to take into consideration. Is it fashionable, durable and stable? Can it withstand the raging winds? You must have satisfactory answers to these questions before you purchase the umbrella. Portable beach umbrellas are similar to traditional personal umbrellas in terms of construction. The canopy opens wide and closes easily when the upper part of the frame or the runner is eased up or down. They are made without…

The sun is an immensely crucial facet required for the prosperity and continuation of all life forms here on Earth, it would be senseless to argue otherwise. Without the sun being in the exact, precise position, size, and temperature that it stays in, all known life would cease to exist. Day after day the sun continuously provides the earth with numerous necessary ingredients including light, heat, solar energy, vitamins and plant life through photosynthesis. “Photosynthesis, the biological…

Skin colour is determined by alleles that control the production of colouring pigments namely pheomelanin and eumelanin. Therefore skin coloration is a hereditary trait rather than dependent on the area where you live. Light skinned people produce mostly pheomelanin and darker skinned people produce eumelanin. The sizes of melanin particles differ among individuals and the number and size of these particles are what ultimately determines skin colour. More than 6 different genes code for this…

As a swimming pool owner if you want a pool that sparkles like a diamond basking in the desert sun, there's three things you must know about proper swimming pool maintenance. In this article I'm going to break down each of these essential points and explain why they're so important. Swimming Pool Maintenance Success Tip #1: Water Circulation. Think of your pool as a big bucket of water. Without adequate circulation and water movement it quickly becomes a safe haven for bacteria and algae.…

Title: The effectiveness of different makeups at same SPF level at blocking ultraviolet light in normal daily lives. Group members participated in the experiment: Mathurra Siva, Julia Enriquez and Jindi Li Introduction Background information: Ultraviolet (UV) light is electromagnetic waves which travel at a same speed of 300000000 m per seconds through the space from the sun. UV light is crucial for the human’s body as it helps people to produce vitamin D. However, excess of UV light without…

Purpose: The overall goal of this lab was to perform a procedure on E. Coli which involved transferring genes that encoded for the green fluorescent protein into E. Coli to see if the transferred genes would make a difference on the growth and whether or not the bacteria would glow under UV light. Hypothesis: If the bacteria with the pGLO plasmid was grown on a plate containing LB and ampicillin then the bacteria will grow but not glow under UV light. If the bacteria with the pGLO plasmid was…