domingo, 27 de abril de 2014

3 Frequently Asked Questions about Percentages

 

The Math Dude: Quick & Dirty Tips to Make Math Simpler

Apr 27, 2014 |By Jason Marshall

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies.
This week's episode is a bit different. No, I'm not going to sing the whole audio podcast version showtune style. And no, as much as I'd love to, I'm not going to do the whole thing using my awesome British accent. Instead this week's show is the first in a new series of "Frequently Asked Question" episodes inspired by questions you've sent to mathdude@quickanddirtytips.com.
While I do read each and every email I receive, the truth is that there simply aren't enough hours in the day for me to respond to each question individually. But I've noticed a lot of commonality to many of your emails, which made me realize that we should dedicate one show each month entirely to your questions…and my answers. Up first today are your most frequently asked questions about percentages.

How Do You Calculate Percentage Increases?

Math fan Stephanie writes:
"How would I solve the following question: In the year 1986 the population of Elm Town increased from 900 to 981. What was the percent increase? How would I set that problem up to find the answer?"
This type of problem is all about finding what's called a
percentage increase. A percentage increase is simply the amount—expressed as a percentage—that something has increased relative to its original value. If the price of something changes from $100 to $110, the price has increased by $110 - $100 = $10. So to find the percentage change, we just need to compare this $10 change with the original $100 price.
To do that we first need to find the ratio of the amount changed—that's $10—relative to the original value—that's $100. In this case that gives us a ratio of $10 / $100 = 0.1. If we then convert this fraction into a percentage (which we can do simply by multiplying the decimal value by 100), we find that the percentage change = 100 * fractional change = 100 * 0.1 = 10%.
Now let's look at the problem Stephanie brought up about the population of Elm Town increasing from 900 to 981. Since that's an increase in population of 81 people, the percentage change is 100 * (81 / 900) = 9%. There are many variations on this theme. For example, here's another question from math fan Teri that at first looks different, but is actually about the same underlying idea. Teri writes:
"If an employee earns $9 per hour and the supervisor wants to give the employee a raise of $3 per hour so in the end the employee will earn $12 per hour, what percentage of the current salary will the increase constitute?"
In this case, the employee's $9 salary increases by $3 up to $12. The ratio of the amount changed relative to the original value is $3 / $9 = 1/3 or 0.333…. If we convert this
decimal into a percentage, we find that the percentage change is equal to 100 * 1/3 = 33 1/3%. A pretty hefty raise!

> Continue reading on QuickAndDirtyTips.com

More episodes of the Math Dude available on QuickAndDirtyTips.com

A Happy Life May not be a Meaningful Life - Scientific American - Mozilla Firefox 2014-02-19 18.42.38

Gaza’s only female photojournalist, Eman Mohammed, shows the devastation of war on private lives

 

Blog_FF-EmanMohammed

At the age of 19, Eman Mohammed became the only female photojournalist based in Gaza, breaking longstanding cultural taboos around the role of women in society. Three weeks into her career, the Gaza War began. Now 26, Mohammed continues to document harrowing and intimate stories of war and its aftermath in Gaza and beyond. Here, Mohammed tells the TED Blog her extraordinary story of battling professional bias and sexual harassment from male colleagues — while simultaneously documenting the battle raging around her.

How did you end up on the battlefield as a photographer? What was your inspiration?

My inspiration is my mother. My father’s Jordanian with Palestinian roots, and my mother is a Palestinian — Gazan. When they separated when I was 3, my mom went back to Gaza and raised me there. In those years, I saw how the community mistreated her because she was divorced and raising her kids alone, an unknown thing. In that culture, if you get divorced, mothers aren’t supposed to raise their kids. You leave the kids with their dad. It’s a punishment. And if you don’t, you can’t remarry, by law. My mom didn’t want to remarry because she didn’t want to give away her kids.

It’s always the woman’s fault?

Always. Even when the husband is clearly in the wrong, divorced women are despised — or neglected, or the black sheep in the community — one way or another. You have zero chance of remarrying if you keep the kids. This is because, in a lot of cases, women don’t work. They can’t afford to survive. They can’t afford to raise kids alone. Nowadays, people are questioning this custom.

My mother struggled, but we still managed to travel. If she couldn’t afford much, she went to the poorest countries on Earth, and she dragged us all over the place with her, which was really fun. We visited cities in Romania, Egypt, Turkey, Saudi Arabia. Travel changes everything. When you get exposed to different cultures and places, you just gain a lot of information and a way of thinking that schools don’t teach you. It was life-changing: we got to learn English, we got to learn about a lot of things that normal people in Gaza would not care about.

Meanwhile, my mother sent me to a church school, because it was one of the top schools in the city, then I went to the Islamic University of Gaza, which is owned and operated by Hamas. Both of them were extreme, in a way. It gave me a wider perspective on things.

Palestinian women and children waiting for their turn for a boat ride in Gaza's sea. Photo by Eman Mohammed/Getty Images for WHAT'S NEXT

Palestinian women and children waiting for their turn for a boat ride in Gaza’s sea. Photo by Eman Mohammed/Getty Images for WHAT’S NEXT

You started doing photojournalism as a teen. Did you always know you wanted to be a photographer?

I knew I wanted to be a journalist, but I didn’t know that there were a million fields of journalism to choose from. At university, we don’t have photography as a subject. It doesn’t exist. I knew from the start that it would be hard to get a job in journalism in Gaza. I took internships, starting with radio stations, then newspapers, news channels on TV. Eventually I was trained by a local agency — it was a secular agency, but my boss was Islamic Jihad. He offered me a staff position — amazing considering I was 19, and still in my second year of university — as an editor in English and Arabic, and a producer. I made a condition that I would carry a camera with me, so that I could take photos. But I didn’t say that out loud: as a woman, you can’t say “I want to be a photojournalist” without being heavily criticized for it and in most cases forbidden.

Why would you be allowed an internship but not be allowed to be a photojournalist?

It’s OK to be a reporter as a woman, working in an office. TV reporters are OK, too, because they are only in the field for the final part of the report. As long as you spend most of your time inside the office, it’s fine. But to go into the field full-time with men as your colleagues is different — and you can’t be a photographer and work in the office. As a field photographer, you’d be the only woman with a lot of men. Just the idea was fascinating in a very negative way for me. Why? I didn’t get it, even though I’d lived all my life in Gaza. I know how conservative people can be, and how they mix tradition with religion. Religion has nothing to do with these very conservative, extremist traditions they have.

Sabha Abu Halima and her son Ahmed Abu Halima in their house, which was destroyed by fire from phosphoric bombs dropped by Israel during Gaza War. Photo: Eman Mohammed

Sabha Abu Halima and her son Ahmed Abu Halima in their house, which was destroyed by fire from phosphoric bombs dropped by Israel during Gaza War. Photo: Eman Mohammed

What do you mean?

In Islam, you’re allowed to work, you’re allowed to be in the field. And men have to respect you because you’re a woman, regardless of what you do, as long as it doesn’t go against Islamic rules. You can’t be, say, an escort or something like that. That goes against modesty rules. But you can be anything else, if you want to. Photography doesn’t offend Islam in any way. So it was never an issue religiously speaking, but it was a huge issue culturally speaking. But people don’t discern. I go against these traditions, and then people ask, “Why do you wear your hijab?” But it’s different. This is religion, that is culture.

So I used that job to sneak myself into photography. It made perfect sense to my boss. To get around the cultural stigma, he gave me an old, broken camera, and said, “If you can fix it, you can have it.” Turns out it wasn’t really broken. The shutter was stuck. I thought I was a genius, and I fixed it, and then it worked, and I took it all over the place.

But then he started getting negative comments from his colleagues: “You hired a girl, she wears jeans, she goes to the field, and she jumps all over the place with her camera.” So he took the camera, locked it in the closet, and said, “If you stay in the office, you can have it.” What am I going to photograph in the office? I realized I didn’t have time for this game, because I was 20, and I wanted to go further with my career. I had really big dreams. I was working three jobs with one paycheck, and still, that wasn’t enough.

So I quit. I managed to go into the field as a freelancer, and this was like three weeks before the first war, in 2008. I had saved up, and I got my own gear: one camera, two used lenses. I felt confident enough to freelance with a news agency for written reports, with few photos. But no one knew me, internationally. And locally, no one would hire me.

Eight Palestinian children  in the Jabalia refugee camp, in the northern Gaza strip, look through their window where laundry is being hung, watching a funeral (not shown) process past their house. Photo: Eman Mohammed

Eight Palestinian children in the Jabalia refugee camp, in the northern Gaza strip, look through their window where laundry is hanging, watching a funeral (not shown) process past their house. Photo: Eman Mohammed

You must have had friends in the field who were men. What changed?

They were nice until I decided to go into photojournalism. It became problematic. I became the enemy, in a way. They couldn’t understand why I’d leave a good office job. They thought I was humiliating myself to be acting like a man. To them, photojournalism is a man’s job. But they couldn’t say this in public. The fascinating thing about the culture is, men, they can’t say such things in public, they can’t bail on you. They have to at least treat you like a sister in the eyes of the community, even if you go against them.

Three weeks later, the war started. Air strikes were targeting the whole city, the whole Gaza Strip. We had to move around in groups, in two armored Jeeps that belonged to international wire agencies. When you move in groups, it’s less likely that you get hurt.

But their attitude started to harden. Some said I was a bad person, a bad Palestinian girl who wouldn’t obey the cultural rules. Others insulted me for going around with men. And some saw an opportunity: on the second day, I was sexually harassed by one of my colleagues. That drove me to the edge. The war was a huge dose of unexpected pain. It was a shock to everyone. So to deal with that and then be sexually harassed was something that drove me to break from the group and work on my own.

In the talk you gave at TED2014, you said that you were abandoned on a strike field by your colleagues.

It was the day I was sexually harassed by a chief photographer — so I ran to my other colleagues, who took me into another Jeep. The bombing was north, close to the borders. When we arrived, there were heavy sounds of air strikes — very, very loud and scary. I’d never before heard this whistling sound. It’s bombing, and it’s happening on top of you.

And it was an open area — we call it unprotected, because there are no trees, no big buildings, no nothing — just some houses. When everyone was heading back to the Jeep, I looked back — I was fascinated by where we were. When I looked at the Jeep, everyone was already in, so I thought, “OK, this is no time to freeze.” It was weird, because one of my colleagues gestured at me, but he didn’t say, “Come.” So I was running after them, and by the time I got to the door, it was locked. I knocked on the window, and my colleague was like, “I don’t have time for your shit.” And then I was like, “You’re kidding, right? I can take a joke, but just let me in.” I saw the two people in the back looking at me like they wanted to do something, but they didn’t. And then they drove away.

I was in the most shocking situation in my life, but it wasn’t really the time to be shocked, so I just started walking into neighborhoods really quickly. And there were people there. I walked to a nearby hospital, a place where we regularly visited to check where the injuries were coming from. There,  I saw the colleagues that dumped me in that place. They were all there, and they were really happy about some amazing, powerful photos that they got on the way. I had tears in my eyes. One of them — not the ones who left me, but another man — said, “They left you, right?” They didn’t seem surprised to see me. It’s like they knew I would be back. And what they told others was that I would be back. The person who left me seemed relieved when he saw me.

How could you bear to go on after that kind of abuse? Why didn’t you quit?

The deciding moment was when I broke my nose. I didn’t want to be close to any of my colleagues. It was too emotionally overwhelming. So I decided to venture out and work alone. But I hadn’t been trained to cover war. I didn’t know how close, how far from an event I should I be. I learned the hard way.

A Palestinian man screams in horror outside the Al Saraya police compound after it was shelled twice by Israeli war planes on 28 December 2008. Photo: Eman Mohammed

A Palestinian man screams in horror outside the Al Saraya police compound after it was shelled twice by Israeli war planes in December 2008. Photo: Eman Mohammed

How did you break your nose?

There had been an air strike on a police compound, and I was there afterwards. The thing about the Israeli military, when they start an air strike, they wait for civilians and medical teams to arrive, and then they strike again, so they can have biggest number of casualties. So there were strikes maybe four minutes apart, which was the time it took me to arrive from a very nearby hospital.

The pressure when an air strike happens is enormous. I didn’t know that. My camera pretty much bounced off my face. It wasn’t the same as being hit by a block or a missile, but it was painful. I could hear things crashing — and I could hear it for days after. But in that moment, all I could do, literally, with no previous thinking or anything, was just to keep shooting. I wanted to make sure that, when I later wrote the report, people could see it like they were there. It made me more determined to do what I was doing. I was so scared, I could have flipped and decided, “No, I can’t do this.” When you come closer to death, things change. And it only changed in the positive direction for my work.

Children having a bubble bath in a Jacuzzi tub sitting atop the rubble of their house, destroyed by Israeli forces. Photo: Eman Mohammed

Children taking their daily  bubble bath in a Jacuzzi tub that sits atop the rubble of their house, destroyed by Israeli forces. Photo: Eman Mohammed

That was several years ago. What are you working on now?

I’m still freelancing. I was freelancing with international agencies. The Washington Post, Le Monde, and The Guardian are some of my main clients. I was working with the United Nations in New York, Save the Children and UNICEF. But I also started doing my own long-term projects because, after the war ended, I didn’t know how to capture the aftermath exactly.

One of my projects, “What Lies Beneath the Rubble,” is about the aftermath of the war, but it shows you a totally different face. People aren’t just sad. Some of them are … well, not happy, but moving on. There is one very peaceful story about a guy who used to work in Israel. He didn’t think about revenge or enemies. He sees Israelis as his neighbors. Because he used to work side by side with them for years, he had his retirement dream house built when the first war happened. He lived in the north of Gaza strip, in an area called Izzbet Abed Rabo. His house was one of the first places to be targeted by the Israeli army during their field operation, and the house was blown up by dynamite. Everything was gone but a Jacuzzi tub that he got from Tel Aviv. It was in perfect condition, so he pulled it out and placed it on the top of the rubble. All his memories and life were under the rubble but this tub. He started giving his kids a bubble bath every morning to cheer them up.

Tell us about your most recently project, iWar. What’s it about?

iWar is about the long-term aftermath of war survivors and victims. It’s a series of portraits and a gentle, symbolic way to show that war has happened, and it’s still happening. History has not changed, sadly. It’s a way of saying to the audience, “Even if you’ve moved on, that doesn’t mean the victims did.” Or they did, but they feel the pain at the very same time.

I go to the family, I spend three, four days getting to know them. Sometimes it’s less — it depends. And I share stories with them, until they feel comfortable showing me their sadness. And I ask them, “Show me your sadness, as though I don’t exist. Like I’m not even here.” I get them deep in the details, and then I get the shot. It’s energy consuming and emotionally draining, but it’s very powerful.

Islam Qreqe ,14 months old, sitting on a burned motorcycle. Her father, uncle and 2-year-old brother were riding it when they were targeted, bombed and killed by a rocket fired from an Israeli aircraft drone. Four months later, Islam was born and named after her brother. (Stay tuned for a gallery of Eman's iWar images next week.) Photo: Eman Mohammed

Islam Qreqe, 14 months old, sitting on a burned motorcycle. Her father, uncle and 2-year-old brother were riding it when they were targeted, bombed and killed by a rocket fired from an Israeli aircraft drone. Four months later, Islam was born and named after her brother. (See more of Eman’s powerful iWar images next week.) Photo: Eman Mohammed

I started the project in Gaza, but I plan to photograph different countries with past wars. To show the common things between people who suffer, because pain has no nation. One of the strongest images in the series is of a girl, one-and-a-half years old, sitting on a motorcycle that is really damaged. She was an unborn baby when her dad, his brother, and her 2-year-old brother were all on this motorcycle coming back from the hospital. The boy had walked into something and had gone for stitches. On their way home, an air strike targeted them on the motorcycle. The three of them were killed, but the motorcycle survived. The grandfather rode the motorcycle to the house, and kept it as a reminder. The girl was born six months later and named Islam, her brother’s name, in memory of him.

Another project, “Undercover,” is about empowering women. It’s the same approach — portraits of women in very unusual circumstances, doing unusual things. It’s not typical to see photos of women in the Middle East at all, especially in Gaza. I’ve taken a portrait of Gaza’s only female construction worker. She started working because her dad and brother died, and she was the only breadwinner, so she had to do what they used to do, because it was the only thing she knew. These portraits can be cheerful, very empowering.

Speaking of women in unusual circumstances, are you still Gaza’s only female photojournalist?

So far, yeah. Sadly. I mean, a lot of women might be encouraged to go against their families, but they can’t go against family, community, society, sexual harassment, the Israeli wars on Gaza. There’s only so much one person can take.

You are also now the mother of two young daughters. Given all that you have experienced, what do you hope for them? How do you feel about their future in Gaza, and what are you teaching them about being female in this culture?

Gaza’s old traditions need to change, and the violations against women have to stop. That will never happen by ignoring the problems. Things will only change by talking and raising awareness, along with raising the new generation. That’s exactly what I do with my daughters. There is no: “Because I say so.” Everything comes with a reason, and they have the right to ask questions and do with whatever they wish or like, as long as it’s not hurting them or others. My family is all Muslim, and that’s our real understanding of Islam.

Their lives will not be limited to living in Gaza, but they definitely need to know more about their identity as Palestinians while we continue to live between Gaza and the United States. We encourage them to express themselves and their dreams, and make big plans for their future. No one has to change the world: we can easily create our own. My daughters will not have to be the black sheep as Palestinian women living within a conservative community — I am the only one so far who uses photos to fight discrimination, but not the only woman who believes in changing this extreme way of thinking and living. When it comes to war and conflict, if we stop communicating, nothing will be solved. If I choose the easy life it will be meaningless. The same goes for my family and daughters.

 

TED Prize, by the numbers _ TED Blog - Mozilla Firefox 2014-02-28 07.00.16

National Museum of Natural History Pictures

 

Click Link >    Photos of Museums

Dinosaur Hall

National Museum of Natural History Pictures 2014-04-27 08-57-28

Vegan protein powders

 

By Jolinda Hackett

A friend of mine recently asked for a recommendation of protein powders, since she's trying to eat more vegan meals and is worried about getting enough protein. The truth is, there's lots of high-quality vegetarian and vegan protein powders out there, but there's also plenty that are filled with cheap fillers, and finding protein powders that aren't dairy based and filled with whey (milk protein) can be challenging. When it comes to selecting vegan protein powders, I can't say this enough: read the label to know what you're getting. You might be surprised to find sugar or other cheap fillers listed as one of the top ingredients. This may or may not be a concern for you, but you need to know what's in your protein powder! Here's my personal favorite vegan protein powders.

1. Best for everyday protein: Hemp protein powder

Yes it's green. Get over it. Hemp protein is a great option for vegetarians and vegans, and it's reasonably priced enough to be a good everyday option. As an added bonus, hemp protein is also high in fiber! Though getting enough fiber is definitely not something most vegetarians and vegans need to worry about! I like Nutiva brand hemp protein powder, since it's high-quality (check the ingredients list - nothing in there but 100% hemp protein!) and reasonably priced, compared to other brands, and I keep two of their products on hand. One is their regular hemp protein powder, and, when I can find it, I like to use their hempshake powders, which are perfect for making smoothies and shakes. Hemp protein is a great source of everyday protein for vegetarians and vegans, and, since it's made from cold-pressed hemp seeds, it's also a great source of raw protein for raw foodists.

2. Best for protein and nutrition: The Ultimate Meal

It may seem a bit gimmicky, but The Ultimate Meal really lives up to the hype. This stuff gives me just as much energy as a cup of coffee - but even better. The directions on the can say to blend the powder with an apple for fiber and a banana for flavor and texture, and if you do, the taste is pretty good. As a plus, this mix is all raw vegan protein and sugar-free. It's not cheap, but it's well worth the price, in my opinion. You've been warned - the natural energy this stuff give you can be addicting! You'll feel so good that you'll want to keep coming back for more. Plus, the founder of the company is a pretty amazing person who offered me quite a bit of mentoring and inspiration when I was a young and aimless vegan trying to figure my way in the world years and years ago.

3. Best for superfood power: Green protein powders

I've yet to find a green protein powder that truly tastes good, so I tend use them only rarely or just a little bit in moderation when I feel I need an extra boost. Usually, I'd rather just add fresh raw greens to my smoothies and leave it at that, but green protein powders do provide a host of nutrients that you won't find even in the greenest of kale and reddest of chard, such as barley grass, wheat grass and spirulina.

4. Best for sports performance: Vega's sports protein blend

Vega Sport Performance protein powder is a popular choice amongst vegan athletes, which makes sense, as the company was founded by a vegan athlete, triathlete and Ironman Brendan Brazier. If you're a serious athlete looking for maximum recovery fuel, this may be the protein powder you want to try. Vega also makes a vanilla chai flavored protein powder which I've really got to try!

5. No protein powder? No problem!

Need a high-protein shake right now but don't have any protein powder on hand? No problem! You can blend up a high-protein vegan drink using a few things you might have on hand or can find at just about any corner store. Soak some nuts, then add them to your regular smoothie. Add a container of high-protein soy yogurt or yes, even silken tofu.

 

Quinoa Nutrition Facts - Quinoa and Protein - calories - Quinoa low-fat, gluten-free and healthy 2014-04-27 08-33-40

The ultimate vegan cookie recipe collection

 

Vegan chocolate chip cookies, Christmas cookies, no-bake cookies, and more!

By Jolinda Hackett

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The only vegan cookie recipe collection you'll ever need! Be sure to scroll all the way down to find out what is, in my opinion, the ultimate best vegan cookie ever.

1. Vegan chocolate chip cookies, 8 ways

No collection of vegan cookies would be complete without options for the ultimate all-American cookie: chocolate chip. Whether you like them with nuts, oatmeal, peanut butter or just plain, there's a vegan version here for you:

2. Oatmeal cookies

After chocolate chip cookies, oatmeal or oatmeal raisin cookies are probably the most popular kind of cookie. Of course, vegans can enjoy oatmeal raisin cookies without butter, eggs or dairy. Here's a few traditional oatmeal cookie recipes, veganized:

3. Refined sugar-free vegan cookies

If you're avoiding sugar, there's a number of sugar subsistutes you can use to whip up a delicious batch of vegan cookies - maple syrup, agave nectar, stevia and brown rice syrup, to name just a few. Here's a few of the more popular refined sugar-free vegan cookies on the web:

4. Vegan no-bake cookies

Sometimes you just want a cookie - fast. Sometimes, the kids want to make cookies on their own. No-bake vegan cookies are for those times. I also find that vegan no-bakes can be really simple and help me avoid a trip to the grocery store, as I'm likely to have all the ingredients on hand. Here's a few ways to make vegan cookies, without turning on the oven:

5. Vegan cake mix cookies

There's nothing quite as satisfying as opening a box of cake mix in order to make some "semi-homemade" vegan cookies. Just be sure to check the label on your cake mix to make sure it is indeed dairy-free.

6. The ultimate vegan cookie: Vegan bacon, sea salt and chocolate chips

Wait, what? Yes, that's right. Bacon chocolate chip cookies. These vegan cookies, sprinkled with a bit of sea salt, are the most amazing cookies I've ever had in my life. And they're completely vegan, made with bacon substitute. These are more than just a cookie. This is an experience.

7. Raw food vegan cookies

8. Even more vegan cookies
9. Vegan Christmas cookies
10. Breakfast cookies

Related Articles

Quinoa Nutrition Facts - Quinoa and Protein - calories - Quinoa low-fat, gluten-free and healthy 2014-04-27 08-33-40

Quinoa Nutrition Facts

 

By Jolinda Hackett

Trying to add more healthy whole grains to your diet? Choosing quinoa is a nutritious and easy to prepare whole grain to begin with. Yes, quinoa is healthy, but just how healthy is it? Get the straight nutritional facts and nutrient data about this healthy gluten-free and low-fat grain. Quinoa is a great food not just for vegetarians  and vegans, but for anyone looking to lower their cholesterol or add fiber to their diet. Do be aware, however, that there are several different kinds of quinoa, so their nutrient content will vary slightly.

Protein in Quinoa:

One of the best reasons to enjoy quinoa is because it has a high-protein content, which makes it a great cholesterol-free and low-fat source of protein for vegetarians and vegans. According to the USDA nutrient database, 1 cup of cooked quinoa (185 g) contains 8.14 grams of protein. To put that in reference, the recommended daily protein intake is about 56 grams for most men and 46 for most women. See also: Six Sources of Protein for Vegetarians

Fat in Quinoa:

Quinoa is naturally low in fat, but as a seed, it does have a small amount. One cup of cooked quinoa provides 3.4 grams of fat. By comparison, 185 grams cooked lean ground beef provides 33 grams of fat. Whoa! See also: Fat-free vegan recipes

Calories in Quinoa:

Quinoa is relatively low in calories. One cup of cooked quinoa provides 222 calories. But of course, watch what you add to the quinoa, as it's in the cooking process that most of the calories and fat will be added,depending on how you prepare it. See also: Low-calorie vegetarian recipes

Other Nutrients in Quinoa:

Quinoa is a great source of iron and fiber for vegetarians, vegans, and omnivores alike. One cup of cooked quinoa (185 grams) provides 15% of the recommended daily intake of iron, and 5 grams of fiber, which is 21% the recommended amount. Quinoa is also an excellent source of magnesium, with 118 mg per cup, cooked. According to the USDA nutrient database, one cup of cooked quinoa provides:

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Quinoa Nutrition Facts - Quinoa and Protein - calories - Quinoa low-fat, gluten-free and healthy 2014-04-27 08-33-40

Is Your Home Security System Safe?

Is Your Home Security System Safe?

Tech Talker: Quick and Dirty Tips to Navigate the Digital World

Apr 26, 2014 |By Eric Escobar

Scientific American presents Tech Talker by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies.
I got an email from Tech Talker listener Travis. He was concerned after hearing a news story in which a hacker accessed a home's security camera that was acting as a baby monitor. Travis wants to get a baby monitor for his child, but is unsure on how to secure it so that this doesn't happen to him.
In this week's episode I'll be explaining how to harden your network to make it more secure against invasion.
I feel that the best way to make yourself the most secure is to understand how a hacker could gain access to any given device. This doesn't just pertain to cameras, but to everything tech. The more you understand how certain hacks are done, the better prepared you will be to prevent the attack from happening to you.

> Continue reading on QuickAndDirtyTips.com

More episodes of the Tech Talker available on QuickAndDirtyTips.com

A Happy Life May not be a Meaningful Life - Scientific American - Mozilla Firefox 2014-02-19 18.42.38

Será o Twitter capaz de ajudar fumantes a largar do cigarro?

 

Dados de um estudo clínico conduzido pela Universidade da Califórnia mostram que uma rede de suporte virtual tem impacto positivo sobre pessoas com vício

Fumantes interessados em largar o vício do cigarro tem várias alternativas - adesivos de nicotina, chiclete, e-cigarettes, hipnose e, agora, até o Twitter.

Um estudo clínico recém finalizado pela Universidade da Califórnia, em Irvine (UC-I), testou e comprovou que é possível utilizar uma rede virtual de suporte aos fumantes, via Twitter, para de fato mantê-los longe dos cigarros. O estudo foi financiado por verbas do Instituto Nacional de Saúde (NHI) americano e não teve envolvimento da empresa americana.

Dados preliminares do estudo, segundo a pesquisadora Cornelia Pechmann, mostram que, entre os 280 participantes da experiência, o grupo que tentou abandonar o cigarro com ajuda do Twitter teve o dobro do sucesso do que as pessoas que faziam parte grupo de controle e que não usaram o microblog. Para se qualificar para o estudo os participantes precisavam ter fumado pelo menos 100 cigarros em sua vida e ter fumado pelo menos cinco cigarros por dia.

As pessoas já usam o Twitter para ajudá-las a deixar o cigarro mas, segundo Pechmann, esforços espontâneos tendem a falhar. Muitas pessoas entram no contexto e, nessa situação, é difícil achar na timeline tweets que realmente ofereçam conselhos importantes ou mesmo consolo que ajude a quebrar o ciclo.
Os pesquisadores da UC-Irvine querem utilizar uma rede fechada de suporte via Twitter para conectar pessoas que não se conheçam e acreditam que nesse caso eles possam se ajudar a abandonar o vício e evitar voltar a fumar numa crise. O estudo testou a hipótese de um grupo pequeno formado dentro do Twitter poder ajudar a parar de fumar em cem dias.

Os participantes do estudo foram escolhidos aletoriamente para fazer parte do grupo do Twitter ou do grupo de controle. Participantes de ambos os grupos receberam um fornecimento de adesivos de nicotina sufuciente para oito semanas. Os participantes do grupo experimental foram distribuídos em grupos fechados no Twitter com no máximo 20 pessoas.

As mensagens trocadas apenas podiam ser vistas por eles e pelos pesquisadores. A cada participante foi dada a missão de enviar pelo menos uma mensagem por dia durante um mês via Twitter e uma por semana no mês seguinte. As pessoas aproveitaram para buscar apoio umas das outras e algumas vezes até para "dedurar" quando viram alguém acendendo um cigarro. Mais de 1 mil tweets no total foram trocados e mesmo quando o experimento terminou as pessoas continuaram na rede, diz a pesquisadora.

A pesquisa final não foi publicada ainda com os resultados completos. Os twetts ainda estão sendo analisados e um estudo complementar está sendo planejado para verificar se as pessoas participantes de fato abandonaram o cigarro e isso vai incluir verificação de laboratório utilizando testes de saliva.

Um descritivo do estudo pode ser encontrado no site do NHI em ClinicalTrials.gov site.

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