What is the first image that comes to mind when you think about polar bears? Most people think of polar bear cubs sliding down snow hills guzzling bottles of Coke. However‚ in my mind I see large majestic animals struggling to survive in the wild as the home around them is destroyed by climate change. Polar bears (genus: ursus‚ species ursus maritimus)‚ are one of the few large mammals that are able to survive frigid temperatures that reach as low as minus sixty-nine degrees Celsius due to their
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ecologists. Severe declines in polar bear populations are more noticeable as periods of sea ice cover are steadily declining. A decrease in sea ice is leading to nutritional stress in polar bears due to shorter periods available in prime hunting grounds. As a necessity to the polar bear’s niche a loss of sea ice has harmful implications to polar bear populations. Not only are hunting grounds being lost but industrialization and human habitation are decreasing the size of the polar bear’s natural habitat
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How many optimal solutions are there for a given problem ? - 4- Combinatorial Optimization (C.O.) problems Different fields in Optimization: Linear Programming Non-Linear Optimization Integer – Mixed Linear Programming Graph / network optimization Routing‚ Scheduling‚ Supply Chain‚… Combinatorial optimization studies optimization on finite and discrete domains. Find the minimum s* of f on a finite set S. f ( s ) Min f ( s) sS - 5- Characteristics
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Polar Bears Suffering: How Global Climate Change is Affecting Their Home Keelei Sage BIO 240 12:30 pm T/Th Dr. Zanatta Fall 2012 When I was about nine-years old I went to the Detroit Zoo for the first time‚ and I remember the best part was getting to go inside the big tunnel and see the polar bears and seals swimming all around me. It was on of the greatest experiences from my childhood‚ and I want my children to be able to have the same experience. Polar bears are one of the most interesting
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Christopher Whitten The Polar Express Caldecott Award paper Lorinda Cohoon Polarizing The Polar Express The Polar Express written and illustrated by Chris Van Allsburg in 1985‚ was chosen for a Caldecott Medal in 1986. It was praised for its detailed illustrations and calm‚ relaxing storyline. Widely considered to be a classic Christmas story for young children‚ it has earned recognition several times in the 28 years since its conception and publication. No stranger to such honors‚ Van Allsburg
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In the articles "The Anglerfish Ambush Predator of the Deep"‚ by Larry Brown and "Polar Bear"‚ by Shandra Brady I learned how anglerfish and polar bears adapt to their enviornments. Anglerfish live deep in the sea. Polar bears live in the icey cold artic. These are both hard places to adjust to. Anglerfish have fang-like teeth that are angeled inward for efficent prey grabbing. Female anglerfish have a spine that resembles a fisshing pole sticking out of their back called an "illicium" and at the
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Misleading Graphs Team C Introduction to Statistics—QNT/273 February 7‚ 2011 Jeffrey McDonough Misleading Graphs “Graphs give a visual representation that enables readers to analyze and interpret data more easily than they could simply by looking at numbers. However‚ inappropriately drawn graphs can misrepresent the data and lead the reader to false conclusions” (Bluman‚ 2009‚ p.76). Some methods used by graph makers to mislead consumers are truncated axis starting points and using two
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Graphs‚ Groups and Surfaces 1 Introduction In this paper‚ we will discuss the interactions among graphs‚ groups and surfaces. For any given graph‚ we know that there is an automorphism group associated with it. On the other hand‚ for any group‚ we could associate with it a graph representation‚ namely a Cayley graph of presentations of the group. We will first describe such a correspondence. Also‚ a graph is always embeddable in some surface. So we will then focus on properties of graphs
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arctos) and polar bears (Ursus maritimus). Fast morphological evolution has been seen over the years throughout mammals of the earth‚ as it is an important driver of specialization and speciation. Ursus‚ is the genus in the family of Ursidae (bears) that includes polar bears (Ursus arctos)‚ black bears (Ursus americanus)‚ and brown bears (Ursus maritimus). The polar bear and brown bear specifically are closely related. In fact‚ there are estimates that polar bears branched
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Polar Bears The polar bear is the largest and most carnivorous bear. It is a marine mammal. The polar bear is found throughout the arctic region including Alaska‚ Canada‚ Russia‚ Greenland‚ and Norway. Polar bears can be as tall as 6-8 feet tall. They can weight can vary from about 200-1‚760 pounds. But‚ when born they are 12 to 14 inches long and weigh around one pound. Polar bear’s lifespan ranges from 20-25 years old. Unlike other bears polar bears do not hibernate during the winter. They are
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