Read the text below to answer question.

                                     Self-repairing software tackles malware

     University of Utah computer scientists have developed software that not only detects and eradicates never-before-seen viruses and other malware, but also automatically repairs damage caused by them. The software then prevents the invader from ever infecting the computer
again.
     A3 is a software suite that works with a virtual machine - a virtual computer that emulates the operations of a computer without dedicated hardware. The A3 software is designed to watch over the virtual machine's operating system and applications, says Eric Eide, University of Utah research assistant professor of computer science leading the university's A3 team with U computer science associate professor John Regehr. A3 is designed to protect servers or similar business-grade computers that run on the Linux operating system. It also has been demonstrated to protect military applications.
     The new software called A3, or Advanced Adaptive Applications, was co-developed by Massachusetts-based defense contractor, Raytheon BBN. The four-year project was completed in late September.
     There are no plans to adapt A3 for home computers or laptops, but Eide says this could be possible in the future.
     "A3 technologies could find their way into consumer products someday, which would help consumer devices protect themselves against fast-spreading malware or internal corruption of software components. But we haven't tried those experiments yet," he says.
     Unlike a normal virus scanner on consumer PCs that compares a catalog of known viruses to something that has infected the computer, A3 can detect new, unknown viruses or malware automatically by sensing that something is occurring in the computer's operation that is not correct. It then can stop the virus, approximate a repair for the damaged software code, and then learn to never let that bug enter the machine gain.
     While the military has an interest in A3 to enhance cybersecurity for its mission-critical systems, A3 also potentially could be used in the consumer space, such as in web services like Amazon. If a virus or attack stops the service, A3 could repair it in minutes without having to take the servers down.

                                                                                                 Source: http://www.sciencedaily.com

Building a Practical College Degree for the New Economy

This is not a great time to be a recent college graduate.

Average student-loan debt is $29,400. The underemployment rate is 44 percent for graduates ages 22 to 27, meaning they are holding jobs that don’t require bachelor’s degrees. And the average age of financial independence for college graduate these days is 30.

Such statistics have given rise to the narrative that a college degree is no longer worth it, although volumes of economic studies on lifetime earnings prove otherwise. Even so, given the number of college graduates struggling to launch their careers, a wide gap has emerged between what the workforce needs in employees and what colleges are producing in graduates.

Part of the problem is that we have high expectations for the bachelor’s degree today. Thirty years ago, when fewer people required a higher education to get ahead in life, the bachelor’s degree was seen as a vehicle for broad learning. The training part came later by going to graduate school or getting a job where the new employer trained you.

Now we demand that skills training move in tandem with broad learning, and expect both to be completed in the four years of an undergraduate education. For too many students, however, the bachelor’s degree is not providing that dual experience - high-impact, in-classroom learning and out-of-the- classroom, experiential, and hands-on learning necessary for success in today’s economy.

Because of student loan debt, graduate or professional school is no longer an option for many recent college graduates. They’re searching for quick and cheap add- on boot camps that give them what they’re missing. And a whole new set of providers are emerging outside of the traditional higher-education ecosystem to provide that lift.

Last year, General Assembly, which offers courses of a few hours to a few weeks in everything from digital marketing to web development, expanded to Washington, DC, where it is selling out of nearly all of its offerings. Its average student is in his mid-20s and just a few years out of college.

House Approves Higher Debt Limit Without Condition
By JONATHAN WEISMAN and ASHLEY PARKER
Feb. 11, 2014


      WASHINGTON - Ending three years of brinkmanship in which the threat of a devastating default on the nation’s debt was used to wring conservative concessions from President Obama, the House on Tuesday voted to raise the government’s borrowing limit until March 2015, without any conditions.
      The vote - 221 to 201 - relied almost entirely on Democrats in the Republican-controlled House to carry the measure and represented the first debt ceiling increase since 2009 that was not attached to other legislation. Only 28 Republicans voted yes, and only two Democrats voted no.
      Simply by holding the vote, Speaker John A. Boehner of Ohio effectively ended a three-year Tea Party-inspired era of budget showdowns that had raised the threat of default and government shutdowns, rattled economic confidence and brought serious scrutiny from other nations questioning Washington’s ability to govern. In the process, though, Mr. Boehner also set off a series of reprisals from fellow Republican congressmen and outside groups that showcased the party’s deep internal divisions.
      During the October 2013 government shutdown, The Times’s David Leonhardt explained the debt limit and how a failure to raise it could have affected the economy both at home and abroad.
      “He gave the president exactly what he wanted, which is exactly what the Republican Party said we did not want,” said a Republican representative, Tim Huelskamp of Kansas, who last year unsuccessfully tried to rally enough support to derail Mr. Boehner’s re-election as speaker. “It’s going to really demoralize the base.”
      The vote was a victory for President Obama, Democrats and those Senate Republicans who have argued that spending money for previously incurred obligations was essential for the financial standing of the federal government. “Tonight’s vote is a positive step in moving away from the political brinkmanship that’s a needless drag on our economy,” Jay Carney, the White House press secretary, said in a statement.
      “A clean debt ceiling is a complete capitulation on the speaker’s part and demonstrates that he has lost the ability to lead the House of Representatives, let alone his own party,” said Jenny Beth Martin, co-founder of the Tea Party Patriots. “It is time for him to go.”
      Senator Harry Reid of Nevada, the majority leader, commended the speaker and promised to pass the bill as soon as possible. “We’re happy to see the House is legislating the way they should have legislated for a long time,” he said.

            (Adapted from http://www.nytimes.com/2014/02/12/us/politics/ boehner-to-bring-debt-
            ceiling-to-vote-without-policy- attachments. html?nl=todaysheadlines&emc=edit_th_2014021 2&_r=0)

Read the text below and answer the questions that follow:

Text 2:

English for Adults & Seniors!

Learning a language isn’t only for the young! It’s for everyone and if you are an older learner,maybe 40+ to 70+ then joining an English Language Course in an environment with people in similar age groups is a greatway to do it.

When you join a course at one of the International Schools you will find that approximately more than 20% of our students are aged 30 to 44 and a further 32% are aged 45 to 75 - sometimes older. You aremore than likely to find yourself in a class with people of a similar age;

Some mature students choose Business English courses for their working needs but many more join standard General English courses or the Intensive English Mini-Group courses. Courses like these help you to combine your language course with a holiday and you can make your own afternoon programme or join social programmes which are designed to have a variety of different activities suitable for all the age groups at the school. The programme changes every week and you can see samples of all the different activities on the social programme pages or on Facebook pages.

Mature learners will feel safe joining one of the International Schools. You will find others of a similar age in your class at all times of year

The International School ( I S ) accommodation is also suitable for older clients - you can choose froma homestay with a private bathroom, an apartment, but most convenient of all is Club IS Hotel which is opposite the school. Club IS is for mature individuals who are studying at the school. Classes are always organised according to level and according to age groups.

(Adapted from: < http: www.tisenglish.co.uk /courses-for-adults- seniors>)

                                                               NASA Mission Points to Origin of “Ocean of Storms” on
                                                                                                    Earth’s Moon

Using data from NASA’s Gravity Recovery and Interior Laboratory (GRAIL), mission scientists have solved a lunar mystery almost as old as the moon itself.
Early theories suggested the craggy outline of a region of the moon’s surface known as Oceanus Procellarum, or the Ocean of Storms, was caused by an asteroid impact. If this theory had been correct, the basin it formed would be the largest asteroid impact basin on the moon. However, mission scientists studying GRAIL data believe they have found evidence the craggy outline of this rectangular region – roughly 1,600 miles (2,600 kilometers) across – is
actually the result of the formation of ancient rift valleys.
“The nearside of the moon has been studied for centuries, and yet continues to offer up surprises for scientists with the right tools,” said Maria Zuber, principal investigator of NASA’s GRAIL mission, from the Massachusetts Institute of Technology, Cambridge. “We interpret the gravity anomalies discovered by GRAIL as part of the lunar magma plumbing system – the conduits that fed lava to the surface during ancient volcanic eruptions.”
The surface of the moon’s nearside is dominated by a unique area called the Procellarum region, characterized by low elevations, unique composition, and numerous ancient volcanic plains.
The rifts are buried beneath dark volcanic plains on the nearside of the moon and have been detected only in the gravity data provided by GRAIL. The lava-flooded rift valleys are unlike anything found anywhere else on the moon and may at one time have resembled rift zones on Earth, Mars and Venus. The findings are published online in the journal Nature.
Another theory arising from recent data analysis suggests this region formed as a result of churning deep in the interior of the moon that led to a high concentration of heat-producing radioactive elements in the crust and mantle of this region. Scientists studied the gradients in gravity data from GRAIL, which revealed a rectangular shape in resulting gravitational anomalies.
“The rectangular pattern of gravity anomalies was completely unexpected,” said Jeff Andrews-Hanna, a GRAIL co-investigator at the Colorado School of Mines in Golden, Colorado, and lead author of the paper. “Using the gradients in the gravity data to reveal the rectangular pattern of anomalies, we can now clearly and completely see structures that were only hinted at by surface observations.”
The rectangular pattern, with its angular corners and straight sides, contradicts the theory that Procellarum is an ancient impact basin, since such an impact would create a circular basin. Instead, the new research suggests processes beneath the moon’s surface dominated the evolution of this region.
Over time, the region would cool and contract, pulling away from its surroundings and creating fractures similar to the cracks that form in mud as it dries out, but on a much larger scale.
The study also noted a surprising similarity between the rectangular pattern of structures on the moon, and those surrounding the south polar region of Saturn’s icy moon Enceladus. Both patterns appear to be related to volcanic and tectonic processes operating on their respective worlds.
“Our gravity data are opening up a new chapter of lunar history, during which the moon was a more dynamic place than suggested by the cratered landscape that is visible to the naked eye,” said Andrews-Hanna. “More work is needed to understand the cause of this newfound pattern of gravity anomalies, and the implications for the history of the moon.”
Lunched as GRAIL A and GRAIL B in September 2011, the probes, renamed Ebb and Flow, operated in a nearly circular orbit near the poles of the moon at an altitude of about 34 miles (55 kilometers) until their mission ended in December 2012. The distance between the twin probes changed slightly as they flew over areas of greater and lesser gravity caused by visible features, such as mountains and craters, and by masses hidden beneath the
lunar surface.
The twin spacecraft flew in a nearly circular orbit until the end of the mission on December 17, 2012, when the probes intentionally were sent into the moon’s surface. NASA later named the impact site in honor of late astronaut Sally K. Ride, who was America’s first woman in space and a member of the GRAIL mission team.
GRAIL’s prime and extended science missions generated the highest resolution gravity field map of any celestial body. The map will provide a better understanding of how Earth and other rocky planets in the solar system formed and evolved.
The GRAIL mission was managed by NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, for NASA’s Science Mission Directorate in Washington. The mission was part of the Discovery Program managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama. GRAIL was built by Lockheed Martin Space Systems in Denver.

Available in: http://www.nasa.gov

Complications of Replacement Therapy

Complications of replacement therapy include:

- Developing antibodies (proteins) that attack the clotting factor
- Developing viral infections from human clotting factors
- Damage to joints, muscles, or other parts of the body resulting from delays in treatment

Antibodies to the clotting factor.

Antibodies can destroy the clotting factor before it has a chance to work. This is a very serious problem. It prevents the main treatment for hemophilia (replacement therapy) from working. These antibodies, also called inhibitors, develop in about 20-30 percent of people who have severe hemophilia A. Inhibitors develop in 2-5 percent of people who have hemophilia B
When antibodies develop, doctors may use larger doses of clotting factor or try different clotting factor sources. Sometimes the antibodies go away. Researchers are studying new ways to deal with antibodies to clotting factors.

Viruses from human clotting factors.

Clotting factors made from human blood can carry the viruses that cause HIV/AIDS and hepatitis. ....I.... , the risk of getting an infectious disease from human clotting factors is very small due to:

- Careful screening of blood donors
- Testing of donated blood products
- Treating donated blood products with a detergent and heat to destroy viruses - Vaccinating people who have hemophilia for hepatitis A and B

Damage to joints, muscles, and other parts of the body.

Delays in treatment can cause damage such as:

- Bleeding into a joint. If this happens many times, it can lead to changes in the shape of the joint and impair the joint's function.
- Swelling of the membrane around a joint. - Pain, swelling, and redness of a joint.
- Pressure on a joint from swelling, which can destroy the joint.

(Adapted from http://www.nhlbi.nih.gov/health/health-topics/ topics/hemophilia/treatment.html)

The US Department of Energy is giving $120m (£75m) to set up a new research centre charged with developing new methods of rare earth production.

Rare earths are 17 chemically similar elements crucial to making many hi-tech products, such as phones and PCs. The Critical Materials Institute will be located in Ames, Iowa.

The US wants to reduce its dependency on China, which produces more than 95% of the world’s rare earth elements, and address local shortages. According to the US Geological Survey, there may be deposits of rare earths in 14 US states. Besides being used for hi-tech gadgets, the elements are also crucial for manufacturing low-carbon resources such as wind turbines, solar panels and electric cars, said David Danielson, the US assistant secretary for renewable energy.

Rare earth elements are also used for military applications, such as advanced optics technologies, radar and radiation detection equipment, and advanced communications systems, according to a 2011 research report by the US Government Accountability Office. From the 1960s until the 1980s, the Mountain Pass mine in California made the US the world leader in rare earth production, but it was later closed, largely due to competition with the elements imported from China.

At the moment, the regulations surrounding rare earths mining in the US are very strict, an expert on the materials from Chalmers University of Technology in Sweden told the BBC. “The Mountain Pass mine was [also] closed down for environmental reasons,” said Prof Ekberg.