Everybody should have some level of first aid ability, because accidents and medical emergencies can happen anywhere at any time. St John First Aid courses give you the knowledge and confidence to provide effective first aid whenever it's needed.

First Aid Level 1

    Ideal(理想的) for anyone who wants to learn basic first aid or needs to renew their first aid qualification. Courses can be held at St John or your workplace.

Fee: $162(includes GST)

Duration(持续时间): Eight hours

First Aid Level 2

    Includes all course content from First Aid Level One, plus an additional half day. Ideal for special first aiders, health and safety managers and anyone who needs a first aid qualification.

Fee: $235(includes GST)

Duration: 12 hours

Pre-Hospital Emergency Care (PHEC)

    Advanced training for first aiders who already hold unit standards 6400 and 6402. Ideal for people who require advanced first aid skills or a pre-hospital emergency care (PHEC) qualification for their work.

Fee: $635(includes GST)

Duration: Three days

Child First Aid

    Ideal for parents, grandparents and other family caregivers. A recognized qualification for childcare workers.

Fee: $65(includes GST)

Duration: Four hours

Outdoor First Aid

    First aid response for accidents and medical emergencies in the wilderness. For groups of eight or more.

Duration: One to two days depending on experience

Sports First Aid

    First aid response for common sporting injuries and medical emergencies. Includes ACC injury prevention advice.

Duration: Eight hours.

    If you could change your child's DNA in the future to protect them against diseases, would you? It could be possible because of technology known as CRISPR-Cas, or just CRISPR.

    CRISPR involves a piece of RNA, a chemical messenger, designed to work on one part of DNA; it also uses an enzyme (酶) that can take unwanted genes out and put new ones in, according to The Economist. There are other ways of editing DNA, but CRISPR will do it very simply, quickly, and exactly.

    The uses of CRISPR could mean that cures are developed for everything from Alzheimer's to cancer to HIV. By allowing doctors to put just the right cancer-killing genes into a patient's immune system, the technology could help greatly.

    In April scientists in China said they had tried using CRISPR to edit the genomes (基因组) of human embryos. Though the embryos would never turn into humans, this was the first time anyone had ever tried to edit DNA from human beings. With this in mind, the US' National Academy of Sciences plans to discuss questions about CRISPR's ethics (伦理问题).

    For example, CRISPR doesn't work properly yet. As well as cutting the DNA it is looking for, it often cuts other DNA, too. In addition, we currently seem to have too little understanding of what DNA gives people what qualities.

There are also moral questions around “playing God”. Of course, medicine already stops natural things from happening —— for example, it saves people from infections. The opportunities to treat diseases make it hard to say we shouldn't keep going.

    A harder question is whether it is ever right to edit human germ-line (种系) cells and make changes that are passed on to children. This is banned in 40 countries and restricted in many others. However, CRISPR means that if genes can be edited out, they can also be edited back in. It may be up to us as a society to decide when and where editing the genome is wrong.

    Also, according to The Economist, gene editing may mean that parents make choices that are not obviously in the best interests of their children: “Deaf parents may prefer their children to be deaf too; parents might want to make their children more intelligent at all costs.”

    In the end, more research is still needed to see what we can and can't do with CRISPR. “It's still a huge mystery how we work,” Craig Mello, a UMass Medical School biologist and Nobel Prize winner, told The Boston Globe. “We're just trying to figure out this amazingly complicated thing we call life.”

    To fight for the conservation of forest ecosystem, several ecologists including Daniel Janzen convinced Del Oro, an orange juice producer, to donate part of their forestland to a national park. In return, Del Oro was allowed to throw large amounts of waste in the form of orange peels (皮) on a 3-hectare piece of land within the national park at no cost. Dealing with tons of leftover peels usually involved burning them or paying to have them poured into a landfill, so the proposal was very attractive.

    But a year later, another juice company challenged the deal in court, arguing that their competitor was “polluting a national park”. They ended up winning, and the deal between Del Oro and the national park fell through.

    Then in 2013, while discussing possible research avenues with Timothy Treuer, Daniel Janzen mentioned the orange story. Feeling interested, Treuer decided to stop by that piece of land that had been covered with fruit waste 15 years earlier. What he found shocked him.

    “While I would walk over exposed rock and dead grass in the nearby fields, I'd have to climb through undergrowth and cut paths through walls of vines (藤) in the orange peel site itself.” said Timothy Treuer.

    Treuer and his team spent months picking up samples (样品), analyzing and comparing them. They found great differences between the areas covered with orange peels and those that were not. The area with orange waste had richer soil.

    The effect that the orange peels had on the land is probably not that surprising to people familiar with composting (施肥), but what is really shocking is that a judge actually thought the waste of orange “mined” a national park and stopped it from going forward. Now that Timothy Treuer's study has received worldwide attention, this type of “ruining” is being seriously considered as a way of bringing forests back to life.

    Failure is an unavoidable part of life. Though science has named some life skills that promise success, we're told over and over again that no great success was ever achieved without failure -- or many failed attempts. One of life's most important lessons, therefore, has to be how to handle failure best. But what is the message?

    For starters, ignore advice from anyone that tells you, "Don't beat yourself up about it," no matter how well-meaning they are. According to the new research from the University of Kansas, we absolutely should be beating ourselves up when we fail. Marketing professor Noelle Nelson and her team found that the more emotional a person's response is to failure, the more likely they are to achieve better results the next time they deal with a related task.

    The researchers carried out two experiments in which undergraduate students were required to perform specific tasks. In one experiment, they were asked to search online for a squeezer and report the lowest price they could find with the possibility of winning a $50 cash prize. However, the task was controlled, and all participants were told (by a computer) that the lowest price was $3.27 less than their reported price. Consequently, no participant won the cash prize. When the results were announced, some participants were asked to focus on their emotional response, and others on their cognitive (认知的) response. During the next similar task, participants who focused on their emotional response to failure made more effort than those who focused on a cognitive response.

    Everybody has their own unique challenges, responsibilities, duties, and projects, but these findings are related to all of us. Your personal failure may be a cake that fails to rise, a presentation that goes wrong, or a deadline that gets missed—it doesn't matter. What matters is how you react to it. Instead of thinking about the failure, let yourself feel bad about it. Then follow this advice on how to bounce back after your failure.

Reasons Why You Should Go Hiking

    Whether you're looking to lose weight, reduce (减少)pressure, or clear your head and get out into nature, hiking is the best choice. If you're looking for some motivation (动力)to get off the sofa, consider these reasons to start hiking.

    Hiking is healthy. According to the American Hiking Society, hiking is good for your health. {#blank#}1{#/blank#} You can lose weight, reduce heart disease and slow aging by it. It also offers mental health benefits by reducing pressure and worry.

    {#blank#}2{#/blank#}As you hike more frequently, you'll begin to develop additional patience, skills and comfort along the way. The beauty of hiking is that we can do it naturally and easily. It's easy to stick with hiking because the frustration (挫败)level for beginners is low and you can find the pace that works for you.

    Hiking is cheap. {#blank#}3{#/blank#} Prepare good shoes, some proper clothes, a comfortable pack, and you're pretty much ready to go. Most of you have easy access to parks and natural areas, so you don't have to spend a lot of money or time heading out on a hike.

    Hiking is real. We all spend too much time on computers at home, writing under electric lights or watching TV indoors (often you're writing while watching TV). {#blank#}4{#/blank#}

    Hiking is a great way to introduce kids to the world of the outdoors. {#blank#}5{#/blank#}So let your kids hike together with you and have a good time.

A. Hiking is simple.

B. Hiking is long and difficult.

C. Hiking offers physical benefits by keeping you active.

D. Compared to any other sport, the cost of hiking is low.

E. It's also a sport in which they'll be able to enjoy their whole lives.

F. When you are hiking, you often feel tired and want to stop at once.

G. However, hiking encourages you to walk out of your house and get close to nature.

Earthquakes are common natural disasters. No matter where you are, knowing how to protect yourself and your family during an earthquake is necessary.

Some experts believe that when you feel the ground is shaking, drop down, take cover under a desk and hold on. Most earthquake injuries are the result of being hit by something falling on you. You should stay indoors until the shaking stops. If you are outdoors, don't stay near buildings, trees or power lines. Many people think that in case of an earthquake, they should "get under something" like a doorway or desk, in order to avoid being hurt by falling objects. Rescue experts now say this is the wrong thing to do. For example, in the 1985 Mexico City earthquake, they found hundreds of children in schools, crushed by their desks. However, they could have survived by lying in the aisle (通道，走道) next to their desks.

So find a nice piece of furniture, a chair, a sofa, and lie down, or curl up next to it. A falling roof may compact (压实) the furniture, but will still leave a space for you to survive next to it. This also holds true if you are in a hotel room, especially at night. Get off the bed, and lie down next to it.

In San Francisco's 1989 earthquake, the upper freeway fell on the lower one. People who drove along were crushed in their cars. But they had time to get out and lie down next to their cars. Yes, their cars were crushed, but there was space from top to bottom next to the vehicles for people to survive and wait a rescue.

Doorways and stairways are very unsafe. Stay away from those.

What can we do to keep ourselves safe? Staying calm is the first and most important rule when facing accidents.