Mars Curiosity Rover is Uncovering Martian History

Mars Curiosity Rover is Uncovering Martian History Every day a robotic rover about the size of a small car wakes up and makes its next move across the surface of Mars. Its called the Curiosity Mars Science Laboratory rover, exploring around Mount Sharp at the center of Gale Crater (an ancient impact site)  on the Red Planet. Its one of two working rovers on the Red Planet. The other is the Opportunity rover, perched on the west rim of Endeavour Crater. The Mars Exploration Rover Spirit stopped working and is now silent after several years of exploration on its own. Each year, Curiositys science team celebrates another full Martian year of exploration. A Mars year is longer than an Earth year, roughly 687 Earth days, and Curiosity has been doing its job since August 6, 2012. It has been a momentous time, revealing dazzling new information about Earths neighbor in the solar system. Planetary scientists and future Mars mission planners are  interested in conditions on the planet, particularly its ability to support life. The Search for Martian Water One of the most important questions the Curiosity (and other) missions wants to answer is: what is the history of water on Mars? Curiositys instruments and cameras were designed to help answer that. It was fitting then, that one of Curiositys first discoveries was an ancient riverbed running underneath the rovers landing site. Not far away, at an area known as Yellowknife Bay, the rover dug into two slabs of mudstone (rock formed from mud)  and studied samples. The idea was to look for habitable zones for simple life forms. The study gave a definite yes, this could have been a place hospitable to life answer. Analysis of the mudstone samples showed that they were once at the bottom of a lake filled with water rich in nutrients. Thats the kind of place where life could have formed and flourished on the early Earth. If Mars had living organisms, this would have been a good home for them, as well.   Where Did the Water Go? One question that keeps coming up is, If Mars had a lot of water in the past, where did it all go? The answers suggest a range of places, from frozen underground reservoirs to the ice caps. Studies by the MAVEN spacecraft orbiting the planet strongly support the idea that some episode of water loss to space  occurred. This changed the planets climate.  Curiosity has measured various gases in the Martian atmosphere  and has helped Mars scientists figure out that much of the early atmosphere (which was probably wetter than now) escaped to space. More recent studies have revealed underground ice on Mars, and possibly salty meltwater just beneath the surface in some areas.   Rocks tell a fascinating story of Mars water. Curiosity  has determined of the ages of Martian rocks, and how long a rock has been exposed to harmful radiation. Rocks in direct contact with water in the past tell scientists more details about waters role on Mars. The big question: when did water flow freely across Mars is still unanswered, but Curiosity is providing data to help answer it soon. Curiosity  has also returned important information about radiation levels on the Martian surface, which would be important for assuring the safety of future Mars colonists. Future trips range from  one-way missions  to long-term missions that send and return multiple crews to and from the Red Planet. Curiositys Future Curiosity  is still running strong, despite some damage to one its wheels. That has led team members and spacecraft controllers to devise new study routes to accommodate the problem.The mission is one more step to the eventual human exploration of Mars. As with our exploration of Earth over the past centuries - using advance scouts  - this mission and others, like the MAVENmission and Indias Mars Orbiter Mission are sending back valuable word about the territory ahead, and what our first explorers will find.

Breast Cancer : A Common Cancer

Breast Cancer Breast cancer is the most common type of cancer among women in the world. Even though each patient’s condition is different, breast cancer with the same stage tend to have outlooks that are similar to each other, and they are often treated the same way (1). Like other cancers, breast cancer is ordered by stages according to the size of the tumor and how far the cancer has spread. Pathology reports will incorporate information about the stage of the breast cancer. That is, whether it†¦ 7, 2014 Breast cancer in women Breast cancer in women For the purpose of this assignment, I chose breast cancer as it is very common and second leading cause of death among cancers in United States, after heart disease. However, due to the improvement in drugs, technology, early detection and better understanding on the disease, the rates are declining as compare to the past. Some of the common risk factors that can results in breast cancer are women’s age, history of breast cancer, presence†¦ Cancer has been around for a longtime, but breast cancer has become more prevalent in the past ten years, and the second leading cause of death in women. Although breast cancer is a more common factor for women, men can also have breast cancer. However, the survival rate of men is less than that of women with breast cancer. There are different types of breast cancer, however; Ductal Carcinoma Cancer is the most common type of noninvasive breast cancer women experience. The American Cancer Society†¦ Breast cancer is the 2nd most common, occurring cancer in women. By exploring the pathophysiology of breast cancer, one will understand the causes and be able to educate women on how to reduce the risk associated with breast cancer. Concept, System, Anatomy, and Physiology Breast cancer falls under the concept of cellular regulation. The main body system that is affected by breast cancer is the reproductive system. Breast cancer is defined as the unregulated growth of abnormal cells in the breast†¦ Problem With breast cancer awareness month recently passing, breast cancer is getting more attention than it ever was every year. Breast cancer is so prevalent that it is the most common type of cancer among women other than skin cancer. A disease of this caliber has proven to deserve the awareness it is spreading. Breast cancer is developed from harmful tumor cells that occur in the breast. Normally, cells are multiplied appropriately to differentiation, cell division, and growth†¦ Every minutes a woman dies of breast cancer. Breast cancer is the most common type of cancer among women. Every year, invasive breast cancer is diagnosed in many women alone. Doctors have not been able to find the cure yet. But thanks to nonprofit charities, such as the Susan G. Komen, researchers are receiving enough money that is donated to breast cancer to look deeper and try to find ways to cure and to help prevent such a fatal disease. Early detection of breast cancer helps prevent fatalities among†¦ IORT II. Problem: Breast cancer is the most common type of cancer for women. It is when there is a lump in the breast that contains cancer cells. Some lumps do not contain cancer cells though. The doctor will have to diagnose someone with breast cancer. Breast cancer is one of the top ten leading causes of death in females. Even males can get breast cancer. At least 200,000 women are diagnosed with breast cancer each year. In 2011 40,000 women died of breast cancer. Breast cancer is genetic. That†¦ Cancer occurs as a result of mutations in the genes responsible for regulating the growth of cells and keeping them healthy. Normally, the cells in our bodies replace themselves , healthy new cells take over as old ones die out but, over time, mutations can â€Å"turn on† certain genes and â€Å"turn off† others in a cells. That changed cell gains the ability to keep dividing without control or order, producing more cells like it and forming a tumor. Breast cancer refers to a malignant tumor that has†¦ women with breast cancer since 1895 (x-ray) 1956 (ultrasound) 1977 (MRI), and 1992 (mammogram). They have all been very beneficial to women. Breast cancer is the most common type of cancer in women. About one of three cancers are diagnosed. Cancer is a group of diseases that cause cells in the body to change and grow out of control. Most cancers will form a lump or mass in the breast, which is called a tumor. It is named after a part of the body where the tumor originates. Breast cancer begins in†¦ Abstract Breast cancer remains the most common type of cancer diagnosed in women in the United States. It is the second most common cancer death with lung cancer being the first. African American women have a higher incidence of dying from the disease than any other race or ethnical group. For many years, it was thought that this was due to African American women not having access to the same health benefits as those of other races and that it was often found at a more advanced state. Though there†¦

FAA's Advanced Qualification Program (AQP) Essay

FAA's Advanced Qualification Program (AQP) - Essay Example As the economies of developing countries grow, their own citizens are already becoming the new international tourists of the future. The commercial aviation industry in the United States has grown dramatically since the end of World War II. In 1945 the major airlines flew 3.3 billion revenue passenger miles (RPMs). In 1903, the Wright brothers' first successful flight in Kitty Hawk, North Carolina marked the beginning of the aviation industry. In the early years, the public did not embrace airplane travel as an option, thinking that it was too dangerous. The first major stimulus that helped to develop the industry was the United States' participation in World War I. After the war, though, the government stopped funding research and development, practically stagnating growth in the aviation industry. The events of September 11 have had some of their worst economic effects on the airline industry, leading to a dramatic fall-off in passenger demand and substantially higher costs. But even before that day, the industry was facing bad times, with few airlines anticipating profitable performances in 2001. The Federal Aviation Administration (FAA) has released a Notice of Proposed Rulemaking (NPRM) that would make the Advanced Qualification Program (AQP) a permanent, alternative me... recommendation stemmed from an NTSB accident investigation of a Northwest Airline crash on August 16, 1987, in which 148 passengers, 6 crewmembers, and 2 people on the ground were killed. The NTSB had recommended that all part 121 carriers review initial and recurrent flight crew-training programs. Because it is an industry where mistakes can lead to an unacceptable loss of life and property, commercial aviation has been at the forefront of risk reduction through teamwork training. Among the best-known team training strategies to emerge from the aviation setting is Crew Resource Management (CRM) training. CRM training has endeavored to improve the margin of aviation safety for more than 30 years. The FAA is now proposing to incorporate the requirements of Special Federal Aviation Regulation (SFAR) No. 58 into 14 CFR part 121. Section 121.901 outlines the purpose and eligibilty of the alternate method of training and qualification known as "Advanced Qualification Program". Section 121.903 states that certificate holders who get approval of an AQP must comply with its provisions. Section 121.905 specifies the procedure for a certificate holder to make claim that AQP information or data submitted to the FAA is entitled to confidential treatment under 5 USC 552 (b) (4). [Federal Register] Section 121.907 contains definitions used throughout proposed subpart XXX. Section 121.909 outlines the approval process, where certificate holder applies for approval of an AQP curriculum. Section 121.911 is based on existing language from SFAR No. 58 section 4. Section 121.913 contains requirements for qualification curriculum. Section 121.915 contains program requirements for continuing quali fication curriculums. Section 121.917 contains additional requirements that must be included

Five network management categories making up the FCAPS model Essay

Five network management categories making up the FCAPS model - Essay Example CISCO (2009) provided the information that this specification was introduced by the Internet Engineering Task Force (IETF) and became known as a draft standard in 1995 in RFC 1757. This specification enables the network to be monitored from various aspects with the help of functions and statistics that facilitate communication with the console managers and network probes. SearchSecruity.com (1998) defined network probe as the act of attaining knowledge about a network by inserting a program or a device at a certain point on the network. The exchange of information between the RMON probes and RMON console managers takes place on the basis of simple network management protocol (SNMP). RMON probes are programmed to communicate with the console managers on the basis of their IP. The primary function of the RMON probe is to measure the packet flow at a certain juncture in the network to generate statistical information. The information is sent to RMON console managers where the network manager can analyze the data and judge the condition of the network. Aoshima (2000) stated that the RMON probes send statistical data to the RMON managers where it is converted into more comprehensive statistical formats, for example, lists and graphs. The statistical nature of the information facilitates fast and effective decision making and analysis. Aoshima (2000) also pointed out that the format of statistical data is based on the RMON Management Information Base (MIB). MIB possesses different monitoring mechanisms, namely RMON1 and RMON2. RMON1 possesses statistical information regarding the data link layer and physical layer, while the other one contains information about the n etwork layer and application layer. The information in RMON1 relates to the MAC addresses and ports, whereas RMON2 contains information about IP addresses and applications. RMON managers are designated to overlook all the branch networks to

The Non- Realistic American Dream in The Great Gatsby Essay example --

In the novel written by F. Scott Fitzgerald The Great Gatsby, the characters truly believe that they can have everything they ever dream for and have a life that others will envy. Myrtle and Gatsby both seem to have the same agenda for their lives; desperately seeking wealth, social status, beatitude, and love. Myrtle Wilson and Jay Gatsby are both driven to reach their goals but do not realize that the American Dream is just an illusion. The dream of finding fortune, fame and true love is something that almost all Americans strive for. Fitzgerald classic, The Great Gatsby, is no exception. Myrtle Wilson is in her â€Å"mid thirties and faintly stout but she carries her surplus flesh sensuously as some women can" (25). She is representation of those who stop at nothing and does whatever it takes to get what they want. From the beginning, those who met her saw the pretense and cunning woman she was. She often held a front as pretending to be wealthy; rejecting compliments toward her dress saying â€Å"it’s just a crazy old thing,† (31) when in fact she had nothing to her name. She is tired of living with the poor and is now prepared to do what needs to be done in order to live the lavish life she desires without caring who she has to step on in order to get there. On the other hand, Jay Gatsby is the representation of every man trying to find the American Dream. He is looking for a life better than the o ne he grew up with, filled with fortune and wealth. When Gatsby meets Daisy, he finds what he is looking for. For Gatsby, Daisy is his American Dream. From then on he does everything he can to be with her. Before coming up with his fortune, Gatsby felt that â€Å"he wasn’t fit to lick (Daisy’s) shoe† (34) under the social status. Believing that b... ...to pay â€Å"a high price for living too long with a single dream† (161). Many people do not believe that the American Dream exists. They believe that the American Dream is a saga we have created to have something to look forward to in our life but the reality is that the American Dream does exist. It is consists of the many things we wish we could have and there is nothing wrong with wanting the best in life but when those desires begin to hurt those around us they can come back to get us. Myrtle and Gatsby only thought of themselves when they pictured what the perfect American Dream was. They did not brother to think about what others felt or wanted. They were consumed with greed and did not realize that the American Dream they wanted and brought them to their own down fall was all just an illusion. They began to dream of a non realistic American Dream.

Hamlet vs Agamemnon Essay

In my opinion, Hamlet was more tragic a play than Agamemnon. As the audience, I felt more inclined to sympathize with Hamlet due to his many sad soliloquies and series of events leading to his downfalls. This is because there was far more to learn about the specific defeats of Hamlet, there were far more disturbance and unrest following the events after his father died, and I felt more pity for the main character in Hamlet as opposed to Agamemnon. The events surrounding Hamlet’s life are far more explored than those in Agamemnon. Though we learn that Agamemnon’s family members are traitors, Hamlet’s family members have sadder, more twisted intentions that we learn about in more detail. We don’t know that Agamemnon was a generally ‘good’ person because we do not delve into his personality the way we do with Hamlet. It is clear that Hamlet was indeed a ‘good’ person who had love for his father. The surrounding events where Claudius, his uncle, kills Hamlet’s father for power and his mother marries Claudius were alone enough to watch our protagonist’s quick and sudden downfall commence. As any ‘good’ person would, Hamlet’s responses to these events surrounding his life were painful, mad, and full of self-doubt. Hamlet, being the main character of this play, developed into a complex personality full of problems, insecurity, self-doubt and procrastination. All of these characteristics are problems that most of us deal with on a daily basis. His internal conflicts lead to him philosophizing about life, death, and even suicide. This was difficult to watch/read as it lead to wondering who deserves such bad things to happen to them? His negative thoughts evoked pity and fear in the audience, which is one of Aristotle’s main definitions of a tragedy. In addition, Agamemnon was not even the main character or protagonist of the play, whereas Hamlet was. The events surrounding Hamlet’s life after his father was killed started unfolding before the audience’s eyes. Once King Hamlet deceased, Marcellus says to Horatio, â€Å"Something is rotten in the state of Denmark.† (Act I, Scene IV). This line early on in the play is foreshadowing to the brutal state of unrest soon to surround Hamlet’s life, family, and state.

What Causes Water Pollution And Its Effects - 1147 Words

What Causes Water Pollution and its Effects The shoreline became a black gooey mess that killed countless birds, and completely devastated marine life! This environmental disaster is only one example of severe water pollution. Therefore, it becomes essential to understand the causes and effects of pollution. Water pollution is a serious problem for the environment. It should be solved on a large scale at the level of states and federal governmental levels. If the public becomes more aware of environmental problems, it can be part of the solution. For example the responsibility of the Pacific Garbage Patch is on the conscience of everyone who throws garbage in the water (Marine Insight). Every pond or water source is connected with a surrounding environment. It is influenced by conditions of the formation of surface or underground water runoff, various natural phenomena, industrial and municipal construction, transportation, economic and domestic activities. 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