زاوية خاصة بالأخبار، المقتطفات و الوقفات ( باللغة الأنجليزية) All English

من منطلق اقتراب الأمتحانات عند معظم الطلاب بمختلف المجالات ، حبيت أحط هاي المقالة العلمية قد تساعدك في استغلال و ادارة دماغك بطريقة سليمة ، بأذن الله ................ The Newest Ways to Boost Your Brain Power Slide #1 Stay-sharp secrets Feeling scatterbrained? Simple solutions such as snacking on blueberries can improve your brain health. Here are the latest tips that will amp up your memory. Slide#2 You sleep, you win If you’ve got a big presentation tomorrow, you’ll remember your speech better and dazzle the audience if, instead of cramming until the sun comes up, you get at least six hours of sleep, a study in the journal Learning and Memory suggests. Researchers don’t know exactly why, but they think sleep may help your brain consolidate and organize information so that it comes back to you correctly. Lights out! Slide#3 Snack on some nuts Nuts of all kinds are full of magnesium, a mineral linked to improvements in short- and long-term memory. (A handful of almonds or cashews, in particular, boasts about 25 percent of your daily requirement.) According to research from MIT and Tsinghua University in Beijing, magnesium seems to promote new connections between brain cells. Slide#4 Cook like an Italian Not so much the pizza, but fish, veggies drizzled with olive oil, and a little meat and vino. With age, the brain starts to develop damage that can lead to difficulty with thinking and memory, but research shows that people who eat a Mediterranean diet are 36 percent less likely to have such damage. Slide#5 Go blue(berry) Blueberries may help keep your brain firing. A study in the Journal of Agricultural and Food Chemistry suggests that the fruit’s wealth of anthocyanins—the antioxidants that create the blue hue—foster neuron-to-neuron communication in the brain, which may help delay memory loss. Slide#6 Relax to remember Your busy life can make you so anxious that your brain simply can’t take in new info, let alone remember it, a University of Rochester study found. Frank Felberbaum, president of Memory Training Systems in New York City and developer of memory workshops for major corporations, says regular deep breathing will help. A nature walk or yoga will quiet your mind, too. Slide#7 Play more Scrabble Exercising your word skills might protect against memory loss, a study in Neurology found. Get help with a daily word e-mail—and pick up a book any chance you get

A dozen ways to stretch out a rubber band you might not have guessed At a dinner party this weekend, my host was wrestling with a jar of honey in the kitchen, unable to unscrew the lid. Just as she was about to fetch her boyfriend to have him finish the job, I asked her if she had a rubber band. “What for?” she asked, having never heard of the following trick: For stubborn tops, wrap a rubber band around the perimeter of the the lid a couple times before attempting to open it—the band acts as a grip and makes it about a thousand times easier to undo. This got me thinking about and researching other uses for rubber bands, which led me to a really helpful post on the subject on the blog Marc and Angel Hack Life. Here, some highlights: Paint can marker. If you’re partially finished with a can of paint, wrap a rubber band around its exterior at the same level as the paint that’s inside the can so you can tell at a glance how much you have left. Pencil eraser. Fold a rubber band a few times to rub off pencil doodles. To keep soap output in check. Loop a rubber band around the neck of the pump on a liquid soap dispenser to control how much soap comes out with each use. Bookmarks. Just wrap a band around the page you’ve just finished reading and the cover of the book. You won’t have to worry about losing your place, nor do you have to bend the pages. To manage stray wires—or yarn. Wrap cords and balls of yarn or thread in bands to prevent tangles. Baby-proof cabinets. Bind knobs with rubber bands to keep them firmly shut. Remote control pad. Wrapping the base with a band keeps your remote from sliding off the coffee table—and prevents your furniture from scratching. Make a broom last. When the bristles on a broom get tired and start to splay out, wrap a couple rubber bands close to the base to keep them tight (and cleaning more effectively). Kitty proof your toilet paper. To keep kittens (or puppies) from pawing at the ends, wrap a band around a roll of toilet paper. Bottle gripper. To keep shampoos, conditioners, etc from slipping from your hands in the shower, wrap rubber bands around the middles to make them easier to grip. Keep a sliced apple fresh. Supposedly, after you slice an apple into wedges, if you reassemble the wedges so the apple looks intact again and wrap a (clean!) band around it, it slows down the browning process—a good thing to keep in mind for brown bag lunches. Got anything to add to this list?

Mysteries abound in Jordan’s city of bones DEAD SEA - A little over an hour’s drive south of the sprawling resorts on the Dead Sea lies one of the great puzzles of archaeology, a city of bones. The archaeological site of Bab Ad Dhraa, near Ghor Mazraa, is one of the most studied sites in all of Jordan and retains the most secrets. The area surrounding the four-hectare city near the mouth of Wadi Karak has signs of occupation dating as far back as the Chalcolithic Age and Neolithic times. After its discovery in 1926 by William Albright, successive excavations in the 1960s and 1970s revealed a town with a seven-metre-thick city wall, monumental structures, houses and a marketplace. What has been more interesting to experts lies 500 metres away from the town: A vast cemetery spanning over a millennia, a literal city of the dead. Near the city’s grounds, which may have been home to up to 4,000 residents at its peak, are buried the remains of over 100,000 people - the largest collection of Early Bronze Age tombs in the southern Levant. Large amounts of pottery flooding the antiquities market in the 1950s and early 1960s originated from the area, where vessels and jewellery were buried with the dead. The earliest graves at Bab Ad Dhraa date back to around 3,400BC and were simple underground shaft tombs, according to archaeologists. Some believe that the different rooms were slated for different burial events. However, most were not buried directly after death, and in most cases, groups of bodies were placed in the tombs together. In the early tombs, bones were carefully piled high on reed mats, with skulls placed to the left of the bone heap, leading some to theorise that the bodies were de-fleshed and skelatised before being buried. The odd arrangement of the skeletal remains from the early tombs also posed questions. Rather than signs of trauma, the rearrangement of the bones may have been a sign of secondary interment, indicating that the bodies made long journeys before reaching their final resting place. The secondary burial theory has led experts to believe that most people who roamed the southern Dead Sea area at the time were likely pastoral nomads who may have came to Baab Ad Dhraa on a seasonal basis, grazing the lands with their flocks and reburying their dead. Around 3,000BC, the area saw the addition of the charnel house tombs - above-ground mudbrick structures that contained multiple burials - perhaps for entire extended families and going back several generations. These structures held the remains of anywhere from 15 to up to 2,000 bodies, and coincide with permanent settlement in the town. As the town of Bab Ad Dhraa grew around the third millennium BC, the type of burial system and level of craftsmanship in charnel houses improved and came to include doorways framed with stones, ceilings of interlaced reeds supported by beams and wooden poles, covered with plaster. Some more advanced houses featured the addition of second floor platforms. For some experts, the higher quality of materials indicates a shift from semi-nomadic to a settled population at Bab Ad Dhraa as more permanent and wealthy cities emerged on the Dead Sea plains. The subterranean shaft and chamber tombs reintroduced in around 2,200BC, were more advanced versions of the tombs used nearly a millennia prior to that. The Bab Ad Dhraa cemetery includes differing tomb types during the same period. Some experts believe that distinctively different groups, settlers and nomads, used the cemetery within the same period, coming from nearby towns such as Numeira, to lay their ancestors to rest. Near the end of the Early Bronze Age period, around 2,300BC, the town became deserted over an estimated 50 year period - a fortressed city that had flourished for millennia was abandoned. All signs of commerce, trade and agriculture disappeared. Only the dead remained. Various scans of the remains at Bab Ad Dhraa have revealed scurvy and rickets among young children in the earlier shaft tombs - indicating a society that may have battled malnourishment. But there is still no evidence of widespread disease among later populations to explain the town’s collapse. Bab Ad Dhraa may have been sacked by an invading population, some have theorised, or perhaps economic collapse drove its residents to migrate elsewhere. Equally puzzling as the city’s abandonment, is the abrupt end to the use of the cemetery. Archaeologists and historians wonder what type of shift could have stopped regional peoples from continuing the pilgrimage to one of the Middle East’s largest graveyards as they had done for hundreds of years. Despite decades of studies and reports, questions surrounding Bab Ad Dhraa have only multiplied. The daily lives and rituals of its people mostly remain a mystery - a puzzle locked in time from beyond the grave.

جديد و مفيد و هام للجميع . 8 Foods You Should Never Buy Again With the rising costs of groceries, we'd all love to save a few bucks at the checkout line. Now you can easily slash your bill with some clever shopping moves and DIY recipes. Manufacturers would like to make you think you're getting a good deal in exchange for convenience, but it's really just eating away at your food budget. Don't be fooled any longer. Cross these items off your list for good! 1. Bottled water Bottled water is a bad investment for so many reasons. It's expensive compared to what's coming out of the tap, its cost to the environment is high (it takes a lot of fossil fuel to produce and ship all those bottles), and it's not even better for your health than the stuff running down your drain! Even taking into account the cost of filters, water from home is still much cheaper than bottled water, which can run up to $1 to $3 a pop. If you have well water and it really does not taste good (even with help from a filter), or if you have a baby at home who is bottle-fed and needs to drink safe water, buy jugs of distilled or "nursery" water at big discount stores. They usually cost between 79 cents and 99 cents for 1 gallon (as opposed to $1.50 for 8 ounces of "designer" water). And you can reuse the jugs to store homemade iced tea, flavored waters, or, when their tops are cut off, all sorts of household odds and ends. 2. "Gourmet" frozen vegetables Sure, you can buy an 8-ounce packet of peas in an herbed butter sauce, but why do so when you can make your own? Just cook the peas, add a pat of butter and sprinkle on some herbs that you already have on hand. The same thing goes for carrots with dill sauce and other gourmet veggies. 3. Premium frozen fruit bars. At nearly $2 per bar, frozen "all fruit" or "fruit and juice" bars may not be rich in calories, but they are certainly rich in price. Make your own at home — and get the flavors you want. The only equipment you need is a blender, a plastic reusable ice-pop mold (on sale at discount stores for about 99 cents each), or small paper cups and pop sticks or wooden skewers. To make four pops, just throw 2 cups cut-up fruit, 1 tablespoon sugar, and 1 teaspoon lemon or lime juice into a blender. Cover and blend until smooth. You might wish to add 1 to 2 tablespoons of water so the final mix is a thick slush. Pour into 4-ounce pop molds or paper cups, insert sticks, and freeze until solid. 4. Boxed rice “entree” or side-dish mixes. These consist basically of rice, salt, and spices — yet they're priced way beyond the ingredients sold individually. Yes, there are a few flavorings included, but they're probably ones you have in your pantry already. Buy a bag of rice, measure out what you need, add your own herbs and other seasonings, and cook the rice according to package directions 5. Energy or protein bars These calorie-laden bars are usually stacked at the checkout counter because they depend on impulse buyers who grab them, thinking they are more wholesome than a candy bar. Unfortunately, they can have very high fat and sugar contents and are often as caloric as a regular candy bar. They're also two to three times more expensive than a candy bar at $2 to $3 a bar. If you need a boost, a vitamin-rich piece of fruit, a yogurt, or a small handful of nuts is more satiating and less expensive! 6. Spice mixes Spice mixes like grill seasoning and rib rubs might seem like a good buy because they contain a lot of spices that you would have to buy individually. Well, check the label; we predict the first ingredient you will see on the package is salt, followed by the vague "herbs and spices." Look in your own pantry, and you'll probably be surprised to discover just how many herbs you already have on hand. Many cookbooks today include spice mix recipes, particularly grilling cookbooks. But the great thing about spice mixes is that you can improvise as much as you want. Make your own custom combos and save a fortune 7. Powdered iced tea mixes or prepared flavored iced tea. Powdered and gourmet iced teas are really a rip-off! It's much cheaper to make your own iced tea from actual (inexpensive) tea bags and keep a jug in the fridge. Plus, many mixes and preparations are loaded with high fructose corn syrup and other sugars, along with artificial flavors. So make your own, and get creative! To make 32 ounces of iced tea, it usually takes 8 bags of black tea or 10 bags of herbal, green, or white tea. Most tea-bag boxes have recipes, so just follow along. If you like your tea sweet but want to keep calories down, skip the sugar and add fruit juice instead. 8. Microwave sandwiches When you buy a pre-made sandwich, you're really just paying for its elaborate packaging — plus a whole lot of salt, fat, and unnecessary additives. For the average cost of one of these babies ($2.50 to $3.00 per sandwich), you could make a bigger, better, and more nutritious version yourself I Hope You enjoy

FDA to Examine Cigarette Ingredients If you want to know what’s in your TV dinner or Twinkies—a big if—all you need to do is look on the package. But if you smoke cigarettes and want to know what you’re inhaling, you’re out of luck. For years, tobacco companies have been lacing cigarettes with hundreds of chemicals and additives ranging from ammonia to cocoa, reportedly to heighten the kick of nicotine, improve flavor, and mask the harshness of smoke. Very little is known about the health effects of these ingredients, however, since the tobacco industry isn’t required to disclose them publicly or explain their purpose. The mystery may soon come to an end. On Tuesday, a Food and Drug Administration (FDA) advisory panel will meet to investigate what “harmful or potentially harmful” ingredients are in the more than 300 billion cigarettes smoked in the U.S. each year. After a second meeting this summer, the panel will provide a list of ingredients and recommendations to the FDA, which was granted the authority by Congress to regulate tobacco products in 2009. “Maybe with a new FDA ruling, companies will have to tell us what they put in these products and why,” says Norman Edelman, MD, the chief medical officer of the American Lung Association. “The concern is that these [ingredients] have health risks and we don’t really know what they are.” Sixty years ago cigarettes contained few additives. But as tobacco companies sought to reduce the levels of nicotine and “tar” in cigarettes in response to mounting health concerns, they turned to additives to compensate for the loss of flavor and kick. By the 1990s, additives comprised as much as 10% of a cigarette’s weight, according to industry documents that have been made public as a result of tobacco litigation. Although the recipe of additives in specific cigarette brands remains a heavily guarded industry secret, scientific research, industry documents, and voluntary (though sketchy) disclosure by tobacco companies have shed some light on cigarette ingredients as a whole. Some of the additives—such as sugar, cocoa, and licorice—sound harmless, even tasty. Others sound lethal. Ammonia (a chemical found in household cleaners), butane (a flammable gas often used as lighter fluid), acetone (the main ingredient in nail polish remover), and nitrate (a component of fertilizers) have all been identified as cigarette ingredients. Experts say these chemicals and flavors make cigarettes easier to light and burn, smooth out tobacco smoke, and help the body absorb nicotine more readily—all of which could potentially make cigarettes more addictive and harmful. “We know that cigarettes are not just tobacco rolled in paper,” says Danny McGoldrick, vice president of research at the Campaign for Tobacco-Free Kids, an antismoking advocacy group based in Washington, D.C. “They’re highly engineered drug-delivery devices.”

يعطيك العافية محمد , زاوية جميلة جدا

أهلا و سهلا ينال .

Thank you mohamad

ترقبوا عودة نشاط هذا الموضوع و الزاوية الهامة ، قريبا . Coming Soon ...... Again