The PET scan‚ or Positron Emission Tomography‚ was born in 1973 at Washington University. It was created by Edward Hoffman‚ Michael M. Ter-Pogossian‚ and Michael E. Phelps; Phelps is most often credited with the invention (History of PET and MRI‚ 2009). In preparation for a PET scan‚ radioactive tracers are injected into the body‚ inhaled‚ or ingested by the patient through a solution that they drink. Then the scan will actually begin‚ as the patient lies on a table‚ which glides into the machine
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Ping Sweeps and Port Scans January 11‚ 2013 Freddie Jackson DeVry University This report is to provide insight on nefarious computer activities called ping sweeps and port scans as a request from management. I will identify them‚ explain what they are use for‚ how they are used and how to stop them from attacking a network. Finally I will discuss how they can be eliminated as security risk. The information in this report is designed to increase the understanding and knowledge of these two
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All businesses regardless of their particular industry will be faced with the challenges of dealing with different environments. A couple of companies that will be discussed throughout this paper are Apple‚ Inc. (Apple) and Dell‚ Inc. (Dell). Both are successful technological companies. Operating in the technology field they pay a great deal of attention to technological factors and trends in the industry. Their internal and external environments can be scanned and evaluated using the PESTEL tool
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Pacific Standard Time NSE: Loaded 36 scripts for scanning. Initiating ARP Ping Scan at 18:08 Scanning 2 hosts [1 port/host] Completed ARP Ping Scan at 18:08‚ 0.63s elapsed (2 total hosts) Nmap scan report for 172.30.0.0 [host down] mass_dns: warning: Unable to determine any DNS servers. Reverse DNS is disabled. Try using --system-dns or specify valid servers with --dns-servers Initiating SYN Stealth Scan at 18:08 Scanning 172.30.0.1 [1000 ports] Discovered open port 111/tcp on
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The initial intent of this analysis was to identify changes in accounting methods within the financial statements of Walgreens and CVS‚ as well as to compare and contrast their financial statements‚ in order to draw conclusions about which company had better earnings. However‚ in the process of this analysis‚ with the exception of a minor change to lease accounting by Walgreens‚ there were no major changes in accounting methods identified. In examining the financial statements for these two drugstore
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aggressive acquisitions of hundreds of smaller companies‚ in the 2000’s Walgreens decided to instead focus simply on rapid store growth. Additionally‚ the company realized that it was time to change its mission to become “the most convenient drugstore in the world.” In short‚ Walgreens’ simple‚ focused strategy gave the company the competitive edge against CVS’ frantic‚ disorganized acquisitions. As the following chart indicates‚ Walgreens’ “hedgehog concept” proved to be much more effective than CVS’ more
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Imagine being able to detect diseases in your body‚ or being able to examine various tissues and determine its conditions. That is exactly what an positron emission tomography (PET) scan is used for. Unlike CT (computed tomography) and MRI (magnetic resonance imaging) scans‚ the PET scan can reveal the cellular level changes occurring in an organ or tissue. To obtain this information‚ a very small dose of a radioactive chemical‚ called a radiotracer‚ is injected into the vein of the patient’s arm
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IV injection 2 mins Patient located 2 mins Patient moving 2 mins - Nurse - Nurse CT scan 17 mins - Nurse Protocol and machine sets up 3 mins - Technician - Technician CT image reconstruction 10 mins - Technician Off table 1 min Return patient 2 mins Code and distribute images 2 mins - Technician Changing linens and clean room 2 mins Refill contrast 3 mins Got next patient 2 mins Total is 10 mins - Nurse Figure 1. Current process flow diagram
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(Magnetic Resonance Imaging) and CAT scans are used by doctors daily. However there are some differences such as CAT scans uses radiation meanwhile MRI doesn’t. Another difference is that MRI is a closed tube meanwhile CAT scan isn’t closed and has lots of space. Both MRI and CAT scans have pros and cons. A CAT scan is an x-ray image made by using radiation and MRI is the use of magnetic field and radio waves to create images of our body. One pro for CAT scans is that it detects diseases before it
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SEC280 March 10‚2011 Ping Sweeps and Port Scans: Should we worry? Ping Sweeps and Port Scans are the two most common network probes that serve as important clues in sensing invasion or intrusion that can harm a network. Network probes are not actual intrusions‚ although‚ they could be potential causes of actual intrusions. Port scans and ping sweeps can lead to an intrusion of companies network system‚ however‚ with today’s technological advancements‚ these activities can be detected
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