now losing species at 100 to 10,000 times that rate. There are literally dozens of species going extinct every day (Chivian & Bernstein, 2008). We should also be concerned because while past mass extinctions are believed to have been caused by events like volcano eruptions, and asteroid strikes, this current issue is almost solely caused by humans. These facts should motivate us as humans to figure out what it is that we can do to change these numbers. Another reason for concern should come from
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Wenxiao NIU Club Paper - HM212 It was a real pleasure to be a part of the first Hart School Big Event and do voluntary community service at Camp Still Meadows. I were assigned to clear the stable and see horses there. Since the community service is not so popular in China, I really gained a meaningful new experience in my life. The most important thing I learned from this event is volunteer service spirit. Nowadays, everyone who live in the modern society is so busy and independent that we
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ITS BACKGROUND Introduction Festivals and events play an important role in the tourism and the hospitality industry. They can create good memories and stories not only with its people who inhabit the place but also to the tourists that visit the event. It is also gives a good impression to people to visit the place because events and festivals contribute to the income of the local government in a city, region, or country. Thus, festivals and events are special types of social activities; they
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Throughout the years, her words also encouraged me to gain a holistic understanding of biology and the human body. Once, while assisting at the free clinic, I discovered that a patient had taken a blood thinner earlier. Remembering from my favorite show how Dr. House ordered these drugs to treat an aneurysm and from anatomy class how they prevented production of blood-clotting proteins, I called over the dentist who rescheduled the patient to avoid excessive blood loss. I
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Have you ever wondered what the big deal is about fossils? Fossils are preserved bones. There are all sorts of fossils, dinosaurs, mammals, amphibians, fish, reptiles, birds, just to name a few. Did you know that the first dinosaur fossil was found in 1676? But there are relatively few found in the United States compared to what there is left to find. But we have some exciting news! There may be some fossils in your area! We are planning a dig near you. We just need your support! We believe that
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Evidence all around us tells us that the Earth will be struck, and another major asteroid impact will occur. The most common and highly argued impact event is the one that may have wiped out the dinosaurs. This event in itself has many theories, but the one common element in most sound dinosaur extinction theories is that a major impact event occurred around the same time the dinosaurs stopped roaming the Earth. Most of the scientific community agrees that an asteroid impact did destroy the dinosaurs
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Life, Death, and the Critical Transition: Finding Liveness Bugs in Systems Code Charles Killian, James W. Anderson, Ranjit Jhala, and Amin Vahdat University of California San Diego {ckillian,jwanderson,jhala,vahdat}@cs.ucsd.edu Abstract finding bugs with model checking currently requires the programmer to have intimate knowledge of the low-level Modern software model checkers find safety violations: actions or conditions that could result in system failure. breaches where the system has
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What killed the dinosaurs Introduction: It is one of the greatest puzzles in paleontology. For more than 150 million years, dinosaurs rule the Earth. They were so successful than other animals groups, mammals included, had little change of taking over. Then, 65 million years ago, the dinosaurs disappeared from the world altogether. Did they meet a quick and catastrophic end, or did they fade away gradually? What happened 65 million years ago? In the search for answers
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“A massive piece of rock hit the Earth 65 million years ago, which set off the events that wiped out the dinosaurs” (R. Cowen, 2007). This rock that killed off the dinosaurs could have been an asteroid or comet. “In 1980, Alvarez and colleagues proposed that, in the transition period between the Cretaceous to Paleogene periods, a large impactor collided with the Earth being the cause of the mass extinction occurred at the K/Pg boundary.” (Hector Javier Durand-Manterola et al., 2014). The K/Pg boundary
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The “Evolving Planet Exhibit” took me on a journey through 4 billion years of life on earth, from the Precambrian singled cell organisms to the Mesozoic towering dinosaurs and extended hominid human family. The unique fossils, concrete interactive displays and recreated sea and terrestrial landscapes help the compelling story of evolution- the single process that connects everything that has ever lived on earth. Evolution of life on Earth occurred 4.5 billion years ago, the Precambrian Eon. This
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