Each year，half a million people die from brain aneurysms(动脉瘤)—when a blood vessel bursts in the brain.An aneurysm is a bulge in a blood vessel that can burst.If that happens in the brain，it can be deadly.For survivors，physical disabilities are often severe.They may include memory problems，loss of balance，trouble speaking and even blindness.But new technologies are increasing survival rates and reducing disabilities.

    Beaumont Bacon is a survivor who makes light of her experience because she is a comedian.She uses humor to make others laugh.Now she's working on a new show.Michael Alexander is her doctor.He operated on Beaumont Bacon after her attack.“She had bleeding in the frontal area of her brain，so right above the eyes.The part that was in the brain was about maybe the size of an egg.So，that's a fairly large bleed.”

    Ms.Bacon had a better chance at survival than most people because of Dr.Alexander.He directs the Neurovascular Center in Los Angeles.The center offers new technologies that include placing a catheter(导管) into an aneurysm，then threading wires to promote blood clots(血栓)．This technique reduces the chances of another burst blood vessel.“You don't have to open up the skull or open up the brain to do surgery.It's all done from inside the blood vessels.So it reduces the amount of blood loss，and the recovery is much faster.”

    For Beaumont Bacon's recovery，the hospital worked to prevent problems commonly found in patients with a burst aneurysm.The problems include brain swelling that can shut down blood vessels.She spent a month in a coma(昏迷)—unable to communicate with doctors，friends and loved ones.But with a year of treatment，she recovered.Now，she is making people laugh.

    Here are six steps to better studying.

Pay attention in class

    Do you have trouble paying attention in class? Are you sitting next to a loud person? Tell your teacher or parents about any problem that is preventing you from paying attention.

Take good notes

    Write down facts that your teacher mentions or writes on the board. Try to use good handwriting so you can read your notes later. It's a good idea to keep your notes organized by subject.

Plan ahead for tests and projects

    Waiting until Thursday night to study for Friday's test will make it hard to do your best. One of the best ways to make sure that doesn't happen is to plan ahead. Write down your test dates. You can then plan how much to do after school each day, and how much time to spend on each topic.

Break it up

    When there's a lot to study, it can help to break things into several parts. Let's say you have a spelling test on 20 words. Instead of thinking about all of the words at once, try breaking them down into five-word groups and work on one or two different groups each night.

Ask for help

    You can't study effectively if you don't understand the material. Be sure to ask your teacher for help. If you're at home when the confusion occurs, your mom or dad might be able to help.

Sleep tight

    So the test is tomorrow and you've followed your study plan—but suddenly you can't remember anything! Don't panic. Your brain needs time to digest all the information you've given it. Try to get a good night's sleep and you'll be surprised by what comes back to you in the morning.

Amsterdam Destination Guide

    Amsterdam is one of the most popular travel destinations in the world,famous for its beautiful canals,top art museum,cycling culture,and Red Light District.It is the capital and most populous city in the Netherlands and often referred to as the "Venice of the North" because of its expansive system of bridges and canals.Here are some of the key points to remember as you plan your trip to Amsterdam.

    Must-See Attractions

    Most visitors begin their Amsterdam adventure in the Old Centre,which is full of traditional architecture, shopping centers,and coffee shops.Don't miss the Dam Square and the areas around Spui and Nieuwmarkt.The infamous Red Light District is also in this area,and definitely worth a visit to see what the type is about.You'll also want to check out Amsterdam's Museum Quarter in the South District,which is great for shopping at the Albert Cuyp Market and having a picnic in the Vondelpark.The top museums to visit are the Rijksmusuem,the Ann Frank House, and the Van Gogh Museum.

    If You Have Time

    There are several, and you should try to explore as many of them as time allows.The Canal Ring is a UNESCO World Heritage Site that was originally built to attract wealthy home owners and is a core for celebrity spotting and nightlife today.The Plantage area has most of the city's museum, including the Jewish Historical Museum, the Scheepvaart Museum,and the botanical gardens.

    Free Things to Do

    Have a picnic and bring a bottle of wine to relax and people-watch in Vondelpark Soak up some sun at one of city's beaches.

Take a walk along the canals, smell the flowers, and browse markets along the way. Hop on one of several free ferry services across the IJ River for lovely city views.

    Money Saving Tips

    Unless you really want to see the tulips blooming, avoid booking between mid-March and mid-May.This is when hotel and flight prices surge.

Look for accommodations in Amsterdam's South District,where rates are generally cheaper than in the city center.

    Buy train tickets at the machine instead of the counter to save a bit of money.

    Instead of hiring a tour guide,hop on a canal boat.They're inexpensive and will give you a unique point of view of the city.

    Check out our homepage to view price comparisons for flights,hotels,and rental cars before you book.

    It began as a game: High school and college students studying computer technology figured out they could use personal computers to break into telephone company computers and make free, long-distance telephone calls. These young computer talents soon gained the name "hackers".

    Police arrested a few hackers, but many went on to even more complex hacking. One of them was arrested for making illegal telephone calls and later he used a phone to change a police officer's credit records to get back at the officer for arresting him. He also used a computer to change his college records to give himself better grades.

    As hackers gained experience  they began invading computers at banks, airlines and other businesses. In one case a hacker instructed an airline's computer to give him free airplane tickets.

    The U.S. government is worried that hackers may break into its networks of defense computers. The government's secrets are easily attacked because thousands of government computers are connected by telephone lines that hackers can get into.

    In November 1988, a college student entered a U.S. Defense Department computer network called Arpanet. The hacker injected a computer program that made copies of itself throughout Arpanet. Some hackers use viruses to destroy all the data in a computer. But in this case, government officials shut down the network before the program reached every computer in the system. Shutting down the system angered many researchers who were using the computers. The hacker turned himself in to the police and he was charged with a crime.

    The incident put the spotlight on computer hacking in the United States. Many companies have hired experts to protect their computers from hackers, and many computer experts now advise companies on how to protect their computers.

    The U.S. government believes foreign governments have hired hackers to try to break into top-secret defense computers.

    Experts disagree over whether a computer network can ever be safe from hacking. But in the future, some of the most outstanding minds in the U.S. will be working to frustrate the attempts of computer hackers.

The prodigious ability of our species to rapidly assimilate vocabulary, expanding from a mere 300 lexemes by the tender age of two to an impressive repertoire exceeding 1,000 by the age of four, remains a subject of profound enigma. Certain scholars in the realms of cognitive science and linguistics have posited that the human mind enters the world equipped with innate cognitive predispositions and logical parameters that facilitate this linguistic feat. However, recent advancements in the sphere of machine learning have unveiled the potential for swift acquisition of semantic understanding from sparse data, eschewing the need for preconceived, hardwired assumptions.

An ensemble of researchers has triumphantly honed a rudimentary artificial intelligence construct to correlate visual representations with their corresponding lexical entities, utilizing a mere 61 hours of ambient visual recordings and auditory data—previously amassed from an individual known as Sam during the years 2013 and 2014. Though this represents but a minuscule fraction of a child's developmental chronicle, it transpires that this was sufficiently informative to incite the AI in discerning the significance of select vocables.

These revelations intimate that the process of linguistic acquisition may be more straightforward than hitherto presumed. It is conceivable that the juvenile mind does not necessitate a tailor-made, sophisticated linguistic apparatus to adeptly apprehend the essence of words, posits Jessica Sullivan, an adjunct professor of psychology at Skidmore College. "This is an exceptionally elegant inquiry," she articulates, as it presents corroborative evidence that rudimentary data extracted from a child's perspective is sufficiently abundant to initiate the processes of pattern recognition and lexical assimilation.

The recent scholarly endeavor also illustrates the plausibility of machines emulating the learning modalities inherent to human cognition. Vast linguistic models are typically nurtured on colossal datasets encompassing billions, if not trillions, of lexical permutations. In stark contrast, human beings manage with a significantly reduced informational intake, as articulated by the principal scribe of the study, Wai Keen Vong. With the appropriate genre of data, the chasm separating machine and human learning could be substantially bridged.

Nevertheless, further investigation is warranted in select dimensions of this pioneering research. The savants concede that their findings do not conclusively elucidate the mechanisms by which children amass vocabulary. Additionally, the study's purview was confined to the identification of nouns pertaining to tangible entities.

Despite these limitations, this represents a stride toward a more profound comprehension of our own cognitive faculties, which may ultimately contribute to the enhancement of human pedagogical practices, according to Eva Portelance, a scholar in computational linguistics. She remarks that AI research has the potential to shed light on enigmatic queries about our essence that have persisted over time. "We can harness these paradigms in a salutary manner, to the advantage of scientific discovery and societal progress," Portelance further elaborates.