Questões

The difficult journey to Olympic success

For Jessica Morgan, a young athlete New Zealand, a typical day starts early. Most mornings, she gets up 4:30 a.m., while her family is still bed, and trains before school. As an elite rower, she is one the best in her country, and she aims to compete in the next Olympic Games.

Jessica’s weekly schedule is grueling. She trains twice a day, six days a week, and competes in rowing events on the weekends. However, she’s also a normal schoolgirl, and like every other sixteen-year-old at high school, she regularly does her homework, too. Jessica’s motivation is impressive. She never hangs out with friends or takes a vacation. She isn’t only an amazing athlete – she usually gets good grades in school, too. Of course, it isn’t easy to become successful. Being the best at your sport requires hard work, determination, and the help of family and coaches. Young athletes’ relationships with their family and coaches can influence their success in the future. Jessica’s parents usually spend hours every week taking her to training and competitions, and they help her to eat a healthy diet. Her coach plans her training and enters her for competitions. But both parents and coach must offer emotional support, too – for example, when Jessica loses a competition or she gets an injury. Luckily for Jessica, she has a good relationship with both her coach and family. But in other cases, these relationships can place too much pressure on young athletes. For this reason, some of them lose their motivation to do well. For Jessica, the most important factor in her future success is her own desire to win. “I know talented young athletes who give up because they feel lonely without their friends,” she says. “But I prefer not to think negatively.” Jessica believes she is responsible for securing her future success. “It’s my decision to train every morning and go back to it again every afternoon. It’s my decision not to have a social life, and never to take a vacation.” Not everyone can cope with this kind of lifestyle. But each day Jessica moves one step closer to achieving her Olympic dream.

INSTRUCTIONS: Read the text carefully and then answer the questions from 33 to 38 by choosing the correct alternative.

Brazil corruption scandals: All you need to know

For the past three years, Brazil has been gripped by a scandal which started with a state-owned oil company and grew to encapsulate people at the very top of business - and even presidents.

On the face of it, it is a straightforward corruption scandal - albeit one involving millions of dollars in kickbacks and more than 80 politicians and members of the business elite.

But as the tentacles of the investigation dubbed Operation Car Wash fanned out, other scandals emerged.

It has led to some of those who have found themselves accused claiming they are the victims of political plots, designed to bar them from office.

What is Operation Car Wash?

Operation Car Wash began in March 2014 as an investigation into allegations that Brazil's biggest construction firms overcharged state-oil company Petrobras for building contracts.

Investigators accused directors at the firm - named the world's most ethical oil and gas company in 2008 - of skimming the extra money off the top as a bribe for awarding the contract.

Which is bad enough - but then the Workers' Party found itself dragged into the corruption scandal amid allegations of having funneled some of these funds to pay off politicians and buy their votes and help with political campaigns.

Among those accused in the scandal were dozens of politicians, and Luiz Inacio Lula da Silva - the country's extremely popular former president, known affectionately as "Lula".

            How Telecommuting Works

Telecommuting, which is growing in popularity, allows

employees to avoid long commutes.

“Brring,” the alarm startles you out of a deep sleep. It’s

8 a.m. on Monday morning. Time to head to the office.

You roll out of bed, brush your teeth and stumble your

way to the kitchen to grab some coffee.

Moments later, you head to the office, still wearing

your pajamas and fluffy slippers. Luckily for you, you

don’t have to go far – you work at home.

Telecommuting, or working at home, has grown in

popularity over the last 20 years.

On an increasing basis, workers are saying “no” to

long commutes and opting to work at home. In fact,

the U.S. Census Bureau reports that the number of

employees working from home grew by 23 percent

from 1990 to 2000.

Telecommuting workers revel in making their own

schedule – allowing them to schedule work around

family and personal commitments. With the ready

availability of technology tools, like the Internet and

home computers, companies are more willing to let

employees work from home.

    ( Adaptedfrom : < http: //home.howstuffworks.com/telecommuting.htm>Access on 18th January, 2014) 

A Brief and Simplified Description of Papermaking

The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.

The Wood yard and Wood rooms

The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).

When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.

The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.

The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)

Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 

Pulpmaking

The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.

The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.

^(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. ^(B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na²S), which was termed the “white liquor.” ^(C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. ^(D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. ^(E)

In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.

The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na₂SO₄ ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.

Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.

By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 

All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl₂ ) and chlorine dioxide (CIO₂ ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H₂ O₂ ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO₂ ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.

From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.

It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.

Read the text below and answer the questions that follow.

WELCOME!

And congratulations on your new purchase. You’re now entitled to an unsurpassed service and a number of benefits as part of the Ericsson warranty and service program. Your Ericsson mobile phone was designed to offer you the ultimate in quality, convenience and performance. And of course, we guarantee it. From now on, as the new owner of an Ericsson mobile phone, you’ll have access to a number of exclusive advantages such as: a vast network of Ericsson service centers; a limited 1 year warranty and service agreement, and a toll-free customer service hotline.

WARRANTY CONDITIONS

Dear Customer,

If your Ericsson product needs warranty service, you should send the product to any company authorized service facility. For information contact the store from which you purchased the product. The product in all cases must be accompanied by the following items: your name, address, telephone number, warranty card, bill of sale bearing the serial number, date of delivery, or reasonable proof of these dates, and a detailed description of the problem.

Our warranty

This warranty is extended by Ericsson Inc. (“The Company”) to the original purchaser for use only. Ericsson warrants this product to be free of defects in material and workmanship at the time of its original purchase and for the subsequent period of one (1) year. All accessories for the product are covered for a period of one (1) year from the date of purchase.

What we will do

If, during the period of warranty, this product proves defective under normal use and service due to improper materials or workmanship, the company will repair or replace the defective item with a new or factory rebuilt replacement.

(Taken from Ericsson – One year Warranty and Service Agreement)

TEXT

August 24, 2016 / By Digestive Health Team

Are You Pooping All Wrong?

5 tips to keep your bowels healthy

    When it comes to our bowels — and their movements — we may not give them much thought. Of course, when things are not going well, we notice.

    However, bowel movements don’t just tell us about the health of our digestive system. This may sound strange, but signs of everything from diseases to stress may show up in your bathroom habits. The key is knowing what to look for — and what the signs may mean.

    Here are five tips to encourage healthy bowels:

    1. Don’t ignore rectal bleeding

    The first thing most people worry about when they have minor rectal bleeding is that they have a cancer. Of course, colon cancer is also a concern. But it’s the cause of rectal bleeding only 1 to 2 percent of the time.

     Two problems are usually responsible for blood on the paper, on the stool or in the toilet: hemorrhoids and anal fissures. The good news is that both problems are usually easy to fix.

    2. Be careful not to be overzealous when you wipe

    A lot of people assume they have hemorrhoids. May their bottoms itch and they feel extra skin down there as they wipe. Must be hemorrhoids, right?

    So they treat themselves with medicated wipes or cream. And yet the “hemorrhoids” don’t go away — they itch even more.

    Often, the problem is, ironically, being too clean. What happens is a circular process. Filled with good intentions, you try to keep yourself scrupulously clean by using flushable wipes. But the unexpected result is that this leads to itching and the feeling that you have hemorrhoids.

    3. Don’t treat the bathroom like a library

    Think of your time in the bathroom as a necessity, not an extended escape. If your toilet has stacks of magazines or books on the water tank, consider moving them to another room.

    Why? The more time you spend on the toilet, the more likely you will strain for bowel movements. Also, the seated position puts extra stress on your anal blood vessels. Both of these factors boost your risk of hemorrhoids.

    4. Get enough fiber in your diet

    The goal is to eat 25 to 35 grams of fiber each day. The lack of fiber in the American diet is perhaps the major problem that leads to issues with constipation.

    One of the challenges is that not all natural sources are equal in the amounts of fiber they contain, so you don’t always get a consistent amount of fiber intake every day, depending on what you eat. One day a bowl of oatmeal may do it. Another day a serving of broccoli may not.

    Of course, each person’s needs are different, too, so you have to find what works best for your body.

    5. Avoid dehydration if you have diarrhea

    The biggest danger with a short bout of diarrhea is dehydration, or the loss of water and nutrients from the body’s tissues. You could become dehydrated if you have diarrhea more than three times a day and are not drinking enough fluids. Dehydration can cause serious complications if it is not treated. The best way to guard against dehydration is to drink liquids that contain both salt and sugar.

(Source: https://health.clevelandclinic.org/2016/08/poop/)