The Human Eye essays

The Human Eye essays 1. Fibrous tunic outer protection and support. non-elastic (it has the same constant refractory index) consists of high amounts of collagen fibers only organ transplanted from one individual to another without rejection for light refraction (light bending),(most important. feature regarding refraction) cornea and lens are involved with refraction o the lens is not part of any tunic, because of the variable elastic change (it is elastic) hence the refractive index can change, the lens is also avascular non-elastic (therefore part of the tunic) anchors extrinsic eye muscles LR6[SO4]3 the optic nerve, CN II , pierces the sclera in the back of the eye creating a blind spot (where there is no sight) = optic disc perioptic nerve exits out of the eye where the optic disc blind spot is located the optic disc lacks photoreceptors: rods and cones anterior chamber H2O secretion (bathes eye) posterior chamber vitreous humor, a gel like substance, gives the eyeball its shape 2. Vascular tunic also called the uvea, forms the middle tunic a) choroid contains melanocytes and serves to absorb light and prevent light from scattering with in the eye ball itself b) cilliary muscle body continuation of choroid, made of smooth muscle, attaches to the suspensory ligaments (made of collagen fibers). The suspensory ligaments inturn attach to the lens. It is really composed of two different types of muscle i. radial muscle (longitudinal), important in distinguish dim light ii. circular muscle cones, color, central vision, close vision c) iris is a continuation of the cilliary body/ cilliary muscle. It encircles the lens. ...

Oceanography as viewed from space essays

Oceanography as viewed from space essays At first thought, studying the oceans from space seems to be a bizarre idea. Space observation helps oceanographers do research with manned and unmanned space systems. The space systems can be satellites and/or space shuttles that observe various features of the ocean such as sea-surface winds, sea-surface temperatures, waves, ocean currents, frontal regions, and sea color. Technological advances have greatly improved the ability of oceanographers to gather and use information that is received. Oceanography as viewed from space has and will become more and more valuable as we begin to understand more of the world's oceans. Space oceanography uses a number of different sciences to research the oceans that include physics, geology, biology, chemistry, and engineering (Cracknell 13). This is evident in the projects that send satellites into space for observation of our oceans. In 1992, the Topex/Poseidon project was launched to observe the interaction between the ocean and the atmosphere (Cracknell 17). The Topex/Poseidon mission is to gather information about sea level heights and ocean currents (Cracknell 17). The Topex/Poseidon orbits above the earth at 840 miles and has a 10-day repeating cycle in which it takes pictures of all of the earth (Cracknell 17). Information about the how the sea level changes can tell scientists that there are changes in ocean currents and in climate patterns (Cracknell 25). This information is valuable to both oceanographers and meteorologists because it gives information about the phenomena, El Nino. Figure 1 is a picture of how the Topex/Poseidon works. The Topex/Poseidon receives information as to what it is supposed to do from a beacon on earth. The satellite then gathers the information it is supposed to gather and then sends it to the beacon on earth. The beacon on earth processes this information so that scientists can use it. As the Topex/Poseidon nears the end of observation new developments ...

Integration plan Essay Example | Topics and Well Written Essays - 1250 words

Integration plan - Essay Example Organizational theory is useful when applied to intricate and complicated situations with organizations and in finding creative and inventive ways to deal with those problems. Some phenomena are too complex to be precisely specified through the use of a mathematical formula because human behavior is also unpredictable. In such cases, metaphors, analogies or theories may be more appropriate and also allow for the exercise of multiple perspectives. Organizational theories are like frames through which organizational aspects and culture can be viewed, allowing practitioners to view events occurring within an abstract context and thereby evaluate them objectively (Hatch, 1997). It also allows practitioners to approach problems with a thorough underlying understanding of organizational function and design and from multiple perspectives in order to successfully achieve organizational goals, create successful marketing trends or control and monitor performance through appropriate structuring and designing of organizational processes. Ans 2: In my own life, my approach to problems is likely to be different after studying organizational theories and designs. This study has added to my existing knowledge on concepts which is likely to help me analyze future experiences in the light of those concepts. The knowledge of organizational theory is also likely to help me discover the connecting links between events where I might not otherwise have seen a relation. This may help to highlight hidden aspects of a problem and provide me the opportunity to view the situation in fresh ways to develop innovative solutions. When my personal experiences are combined with my theoretical knowledge of concepts obtained from organizational theory, it is likely to enhance my understanding of organizations and help me to develop effective solutions. Due to the abstract element present in organizational theory, it