Methylaminolevulinate And Red-Light Photodynamic Therapy In Patients With Facial Photodamage I chose this article because I am interested in dermatology and hope to become a PA in dermatology. This article is very straightforward and it is easy to understand the experiment. The article is related to the integumentary system. Science is always searching for new and innovative ways to prevent aging. Currently laser technology offers many skin rejuvenating therapies that are beneficial but also
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Visible light (commonly referred to simply as light) is electromagnetic radiation that is visible to the human eye‚ and is responsible for the sense of sight. Visible light is usually defined as having a wavelength in the range of 400 nanometres (nm)‚ or 400×10−9 m‚ to 700 nanometres – between the infrared‚ with longer wavelengths and the ultraviolet‚ with shorter wavelengths. These numbers do not represent the absolute limits of human vision‚ but the approximate range within which most people can
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While I do understand that surveillance cameras have many practical purposes in today’s world‚ I still find the very notion of them disturbing and unnerving. It is too easy to slip over the line between necessary and invasive . That line is just too thin. While I realize that many of the surveillance cameras are installed in buildings for sound reasons‚ the idea that I am being watched as I walk through a store‚ across a parking lot or
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The human eye and a camera lens have a few things in common most notably that they both use a converging lens to receive and project images. But human eyes and camera lenses have many things that set them apart from each other. “Retina Provides Color • the image an eye perceives is projected from the cornea to the retina‚ which absorbs the image and projects it to the brain. A camera projects an image on to film where it is captured and saved as a black and white image. The retina contains millions
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There is a convention in the video‚ film and television industries which assigns names and guidelines to common types of shots‚ framing and picture composition. The list below briefly describes the most common shot types (click the images for more details). Notes: The exact terminology varies between production environments but the basic principles are the same. Shots are usually described in relation to a particular subject EWS (Extreme Wide Shot) The view is so far from the subject that
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History of the Earliest Camera Centuries before the invention of the first practical photographic process‚ artists had been using a device called a Camera Obscura‚ literally a dark chamber‚ as an aid in rendering proper perspective or tracing a scene. Originally‚ in fact‚ it was a dark room with a small opening in an outside wall. The image of an illuminated object outside the room passed through the hole and was reproduced‚ upside down and in small scale‚ on an opposite wall. (2002.)
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The Pinhole Camera | The Pinhole Camera | How to build a pinhole camera Materials needed: 1.Ruler 2.Sturdy cardboard box 3.Black tape 4.Black paper 5.Black paint 6.No. 10 sewing needle 7.Craft knife 8.Aluminum foil 9.Film or photographic paper Instructions: 1. Make sure your container is light-proof and allows no light leaks. Cover up
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Pin hole camera was invented by a Muslim scientist ibn-al-haitham.An Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040). Another inventor is the tenth century optician and physicist Abu Ali al-Hassan ibn al-Hassan ibn al-Haytham‚ simply known as al-Haytham‚ who invented the pinhole camera and discovered how the eye works. The ancient Greeks thought our eyes emitted
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light Introduction In November 2011‚ Hong Kong Disneyland and Microsoft created a new game which is Kinect: Disneyland Adventures games. This is marketing-mix. Kinect Disneyland Adventures is a video game published by Microsoft Studios on Kinect for Xbox 360‚ there has recreated a large amount of the Disneyland theme park‚ with themed games in place of many of the rides. Also‚ there are various characters such as Winnie the Pooh‚ Cinderella‚ Daisy Duck and Donald Duck and so on. The target audiences
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1. What is a pinhole camera? How do we know that these devices existed before the nineteenth century? A pinhole camera has no lens and is the simplest form of a camera. The pinhole camera existed before the nineteenth century because it is an 18th century invention 2. Who created the first photograph? How was this done? The first picture or photograph was produced by a French inventor‚ Joseph Nicephore Niepce. Niepce used a pewter plate and a substance known as bitumen of Judea. Bituman hardens
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