When introducing American universities, some of the first institutions（机构）to mention are the Ivy League schools. Originally, the Ivy League was an athletic conference made up of 8 private institutes of higher learning in northeastern United States. However, as time went on, these schools also became known for their excellence in academics besides athletics. Included in the Ivy League schools are Brown University, Columbia University, Cornell University, Dartmouth College, Princeton University, University of Pennsylvania, Yale University, and Harvard University. These 8 schools have been recognized as some of the best colleges and universities in the United States.

    Harvard University is a private institution located in Cambridge, Massachusetts. The university includes a number of graduate and professional schools, as well as a college for undergraduates. In 2012, Harvard ranked number one in US News' ranking of national universities again. Founded in 1636, Harvard is the oldest institute of higher education in the United States. It can be said that first there was Harvard, then the United States of America. Also, Harvard's library contains the oldest collection of books in the United States as well as the largest private collection in the world. Harvard has also been described by Forbes Magazine as one of the “billionaire universities” as of their recent list of 469 billionaires, 50 received a degree from Harvard.

    Harvard College (the institute for undergraduate students) is one of the most famous schools in the United States. It offers over 40 undergraduate fields of study, including astrophysics（天体物理学）, mathematics, neurobiology(神经生物学), etc. And the financial aid program there is amazing. Even though the tuition is about 37,576, and there are other expenses throughout the year, about 70% of undergraduate students received financial aid. Out of those students, over 90% of them had their full need met. And the policies for international students are the same for U.S. citizens.

    Harvard College is very selective, as it only admits about 6% of their applicants. For admission into Harvard College, it is required that students take the SAT or the ACT, as well as 2 SAT Subject Tests. Harvard will also look at other factors during admission such as your application essay, high school transcript, work experience, GPA (Grade Point Average), your interview, recommendations, and most importantly, your character and personal qualities.

    Taking a math test can be pretty stressful. Even if you know the material, you can still get the problem wrong. {#blank#}1{#/blank#} Therefore you'll improve your grades, as well as your math skills.

    Write it out

    You can also check a math problem by writing everything out on paper. {#blank#}2{#/blank#} Writing out math problems reduces your chances of missing anything to the lowest possible level, which is a common cause of incorrect answers.

    {#blank#}3{#/blank#}

    Make sure your answers work by doing the opposite procedure of what your problem calls for, including the answer you got the first time around. In other words, you would use the opposite of this addition problem—subtraction (减法)—to determine whether your answer is the correct one.

    Plug in（代入）

    You may find that a variable isn't good enough or have a problem where you have to solve for a variable (变量). {#blank#}4{#/blank#} This is the only real way to assure yourself that the answer you've found is correct.

    {#blank#}5{#/blank#}

    If the result of a problem seems to make no sense, it indicates that the answer is incorrect. For example, if you get an answer in the millions and you know it should be in the thousands, you've likely misplaced a point. Go back through the work on your paper to make sure all of your formulas and calculations are correct. If everything looks okay, do the problem again and compare the result of the second try to what you've got on the first try.

A. Do the opposite.

B. Correct the answers.

C. Plug the variable in the equation (方程) to check it out.

D. Knowing how to go through your math test and checking your work can save you from handing in a test full of mistakes.

E. It also helps you to figure out everything after you have already finished the test.

F. Check for a reasonable answer

G. This helps you to know what information you have and what information you need to solve.

    You get on an almost-empty bus, but the next passenger decides to ignore all the empty seats to sit right next to you. While you are waiting in line at the supermarket, the next customer stands just behind you shouting into his phone.

    These are attacks of the personal space invaders(侵略者). Though preferences for personal space differ from culture to culture, we Britons do love our independence and personal space.

    As the British customs website Debrett has said, as a British person, somebody standing too close may make you “focus less on what somebody is saying than on how close they are to you”. Simple acts like putting an arm around someone you don't know that well may seem friendly in China, but they can make us very uncomfortable. The ediplomat.com website explains: “The British are not back slappers (拍打者) or touchers and generally do not show affection (喜欢) in public.”

    Being a British person around people from other countries can therefore be full of problems. People from many European countries such as France and Spain kiss each other on the cheek when they meet, yet to us this seems too friendly and “touchy-feely”.

    Simple matters like how close others stand can be problems to Britons who want to keep their own personal space. Giving advice on how to behave around a British person, Debrett's says that “if you can feel the warmth of their worried breath upon your face, then you're standing too close”.

    So, are British people unfriendly? No. The ediplomat.com website explains that we are not as “indifferent” as we may seem, but “very friendly and helpful to foreigners”. However, we do have different ideas about our own space to many people from other countries. Just let us know if you're going to come any closer than arm's length, and you'll be fine!

    Embassy Suites by Hilton Sauta Ana Orange County Airport

Neighborhood: John Wayne Airport (SNA), Orange County 1325 East Dyer Road, Santa Ana, CA

    OVERALL GUEST SCORE

    Very Good

    Based on 163 Guest Ratings

Free Breakfast                Free Airport Shuttle

Fitness Center                Business Center

    Hotel Description

    Being close to airport and freeway access makes the Embassy Suites a top choice for our guests in the area. The 300-room Embassy Suites offers homey comforts for those on business and vacation alike-suites with separate living and sleeping areas, refrigerators, microwaves, coffeemakers, Wi-Fi access and two TVs. Wake up to a free cooked-to-order breakfast and enjoy the indoor pool and fitness center. A two-hour evening reception offers drinks and appetizers and the on-site restaurant serves American favorites. The property also has a business center with copy and fax services. Parking is available for an additional fee. Less than two miles from 1-405, the Embassy Suites is within a half-mile of various restaurants and just three miles from John Wayne Airport. Our guests say the Embassy Suites' location, “brilliant” breakfast and “friendly” staff make it one of their favorite Santa Ana properties.

    Durian(榴莲) is probably the smelliest fruit in the world, letting out an unusual unpleasant smell which would make anyone bring up. However, nobody was aware of what gave this fruit its unique smell, so a team of researchers from Singapore decided to take a look at its genome (基因组) and find out,

    Durian is well-known throughout Southeast Asia as the king of fruits, mostly because of its awful appearance and smell. However, the origin of this unpleasant smell was unknown, so researchers decided to map the genome of the fruit, and find the gene that controlled it. A group of genes, volatile sulfur compounds (含硫化合物), became very active in the fruit, and they were found responsible for resulting in the unpleasant smell.

    The fruit confuses everyone with a sulfuric smell, like rotten onions and ingredients. The smell lasts long, mostly because the fruit contains more volatile sulfur compounds. Other species usually benefit from two gene copies at most, but durian has four, leading to the striking smell.

    However, this smell might be an advantage for durian in the wild. Although we find it unpleasant, many animals might be attracted by it. If they eat the fruit, then they can easily spread its seeds everywhere, thus contributing to the distribution of the species.

    The mapping of the durian genome also showed some other information on the species. First of all, the fruit has an impressive number of genes, namely 46,000. Also, with the help of these genes, they saw how it evolved, and discovered it was related to the cacao tree. All the other discoveries have been published in the journal Nature Genetics.

    Despite the striking smell, many people actually enjoy eating the fruit. However, not all durian species are edible, and some of them may even cause damage to our health, Even so, the fruit is often imported, significantly contributing to the economy.

A new study examines possible harm caused by microscopic pieces of plastic that end up inside people's bodies. These materials -known as microplastics and nanoplastics - can enter the body through the air or in food or drinks.

One new study suggests the buildup of such plastics inside the body can increase the risk of a stroke, heart attack or death. But the researchers noted the evidence presented cannot prove a direct link between tiny plastic materials and heart problems.

The study involved 257 people who had medical operations to clear blocked blood vessels （血管） in their necks. Italian researchers examined the fatty buildup the doctors removed from the carotid arteries, which supply blood and oxygen to the brain. Using two methods, they found evidence of plastics-mostly nanoplastics that cannot be seen-in the artery plaque（动脉斑块）of 150 patients. No evidence of plastics was seen in 107 patients.

The team followed these people for three years. During that time, 30 individuals, or 20 percent of the group with plastics, had a heart attack, stroke, or died from any cause. These rates dropped to about eight percent among those with no evidence of plastics. Research results were recently published in a study in the New England Journal of Medicine.

The researchers admitted their study was very small. For example, it only looked at people with narrowed arteries who were already at risk for heart attacks and stroke.

Steve Nissen is a heart expert at the Cleveland Clinic in the state of Ohio who was not part of the study. He told the Associated Press he thinks the team's estimate that the risk of heart attack, stroke or death was four times greater seems too high. "It would mean that these microplastics are the most important cause of coronary heart disease （冠心病） yet discovered. And I just don't think that's likely to be right," Nissen said. "Maybe, it's just a wake-up call that perhaps we need to take the problem of microplastics more seriously." Nissen added.