Video glasses have improved greatly since they were first introduced to the public
. How knowledgeable are you regarding video glasses
? Take this quiz and find out!
Video glasses have improved greatly since they were first introduced to the public
. How knowledgeable are you regarding video glasses
? Take this quiz and find out!
If our TV-watching habits are any indication, people love forensic science. I’m not sure how many “CSI: Crime Scene Investigation” shows have been spawned, but people undoubtedly dig a diet of grisly crime-scene dramas and cheesy David Caruso one-liners. Nothing like a fortuitously obtained DNA sample to right the miscarriage of justice and send a show straight to successful syndication.
Unfortunately, our TV love for the topic isn’t reflected in real life. Surprised? According to a congressionally mandated report drafted by the National Research Council (hint: click on the book to read it free), there are some “serious deficiencies” in the U.S. forensic science system. The science that gives meaning to bite marks, fingerprints, hair follicle DNA and even writing samples is practiced unevenly at the federal, state and local levels.
And while we tend to take nuclear DNA analysis as the bible
, no other forensic methods hold up quite as well, according the report. That’s kind of surprising because, hey, if your fingerprints match those found on the smoking gun, aren’t you headed for the slammer? Well, no, especially if that fingerprint was smudged, improperly preserved or poorly analyzed.
Dr. Michael Baden, the high-profile forensic pathologist for the New York State Police tells New Scientist that he think the report is “long overdue
.” This from the guy who investigated the deaths of people like Sid Vicious and John Belushi.
So let’s put the science back in forensic science, shall we? Suggestions, anyone?
For all you forensic science junkies who have been known to read Ms. Cornwell a time or two, we have plenty more articles: How Body Farms Work How Bloodstain Pattern Analysis Works How DNA Profiling Works
Topics in this Post: Stuff to Blow Your Mind
MV Agusta’s glorious racing background gave rise to numerous street bikes over the years, one of the last exemplified by the 1977 MV Agusta 750S America motorcycle.
The 750S America model was introduced in 1975. It featured blockier styling and a larger engine than previous MV 750s.
The 790-cc double-overhead-cam four-cylinder engine in the 1977 MV Agusta 750S America motorcycle had its roots in a 500-cc racing powerplant.
When shipped from the factory, the stock exhaust system was an odd combination of chrome downtubes with megaphones finished in black crinkle paint.
The exhaust seen on the 1977 MV Agusta 750S America motorcycle pictured with this article is a Magni design and looks more the part. Arturo Magni was the man responsible for nearly all of MV’s racing success. When his designs were put into the hands of champion riders like Mike Hailwood, the competition had little hope of winning.
The sleek half-fairing on this 1977 MV Agusta 750S America motorcycle is another popular Magni accessory and was also available in a full Gran Prix configuration.
Weighing 507 pounds without fluids, the 750S is no lightweight, but its handling at speed belies the mass. The suede-covered racing saddle does its best to keep the pilot in place during the kind of spirited cornering maneuvers the 750S is so adept at performing.
Like previous MVs, the 750S America was expensive
, and the company continued to lose money. A change of ownership in 1977 did little to help matters, and production ceased during 1980.
But the revered MV Agusta name did not die. Nearly 20 years later it was revived by Cagiva, another Italian motorcycle manufacturer, to be used on an ultra-sport model called the F4
Though an initial run of some 200 units sold out quickly at about $40,000 apiece, regular production versions, called F4S, contained fewer exotic materials and sold for about half that amount. In both performance and price, these new machines were true spiritual successors to the MVs of old.
For more pictures of the 1977 MV Agusta 750S America motorcycle, go to the next page.
Push-ups are the ideal exercise for building upper-body strength if you don’t have access to a gym or training equipment, as all you need to perform them is your own body-weight. Even if you are a gym-based trainer, push-ups can still be a useful addition to your chest and triceps workout. It can be frustrating, however, to notice your push-up numbers going down
, as this may make it seem that you’re getting weaker.
As push-ups are a body-weight exercise, they are an excellent indicator of your strength-to-weight ratio. This means though that as you get heavier, push-ups get harder. Performing a push-up at 150 pounds is much easier than performing one at 200 pounds. Push-ups aren’t an indicator of of overall strength at all. A powerlifter might be able to bench press over 400 pounds but struggle to do 30 push-ups, while an intermediate trainer can bench 165 but perform over 80 strict push-ups, according to Donnie Kiernan of Critical Bench.
Your push-ups may drop off as you get older. Standard push-up tests make allowances for age and predict that the older you are the fewer push-ups you’ll be able to perform. An excellent score for a male between 20 and 29 years of age is more than 54 push-ups, while for a female it’s 48. For a man of 60, however, more than 29 push-ups is considered excellent, and 19 ranks as excellent for a 60-year-old woman.
Just because push-ups don’t involve weights or any equipment doesn’t mean technique is any less important. Keep your whole body tensed when performing push-ups, descend until your chest touches the ground and completely extend your elbows in the top position, advises trainer Mark Sisson of Mark’s Daily Apple. Ensure that your elbows don’t flare out to the side and keep your head facing the ground.
Fatigue — from what you’ve done in previous sessions as well as in the same session as your push-ups — can have a huge effect on performance. As they involve a chest-, triceps- and shoulder-dominant movement, performing push-ups the day after working any of these muscles could very well make you weaker. Likewise, because you will have less strength at the end of an upper-body session than at the beginning, push-ups later in the session may be more challenging and less productive.
If you’re approaching menopause or have already entered menopause, you might be concerned about some of the symptoms, such as hot flashes and difficulty sleeping. Although symptoms can vary greatly among women, they may interfere with quality of life and cause other problems. Oil prepared from the evening primrose plant (Oenothera biennis) is a traditional remedy for some of these symptoms that may have benefits during menopause.
The evening primrose is named for its unusual habit of opening new flowers after sunset or on a cloudy, sunless day. When crushed, the plant’s seeds produce an oil with several compounds that have biological activity
. Twenty-five percent of the oil is made of fatty acids and one of these, gamma-linoleic acid or GLA, is an omega-6 fatty acid called essential because you need to obtain it from food. GLA and other compounds in evening primrose oil may also help lessen symptoms of menopause.
Evening primrose oil has been part of herbal medicine for hundreds of years, recommended by practitioners for many reasons, including relief from hot flashes that arise just before and during menopause. Research into the usefulness of the oil for this purpose has had mixed results. A study published in the December 2009 issue of “American Family Physician” reviewed a number of trials involving its use and reported inconclusive results, stating that most studies provided only preliminary findings and were generally inconclusive. A later study published in the November 2013 issue of “Archives of Gynecology and Obstetrics” included 56 menopausal subjects who took either evening primrose oil or a placebo for six weeks. Women who consumed the oil reported hot flashes of lessened severity, compared to the placebo group, leading the authors to conclude that the oil had some positive benefit.
Evening primrose oil is available from health food stores in capsules. The oil is perishable and capsules should be stored out of sunlight and under refrigeration to prevent spoilage. Opt for high-quality oil certified as organic and is standardized to at least 8 percent GLA to minimize differences between batches. No minimal effective dose of the oil has been established, but clinical studies have used doses between 2 to 8 grams daily, sometimes divided into several doses, without negative effects.
Evening primrose oil is generally considered a safe supplement, but may cause mild nausea, stomach pain or headache in some people. Pregnant or breast-feeding women should avoid it, and it shouldn’t be taken by anyone with epilepsy or another seizure disorder. It may raise the risk of bleeding and shouldn’t be combined with blood-thinning medications. Primrose oil could also interact with drugs prescribed for high blood pressure, depression or seizures. If you’re approaching or in menopause and have questions about evening primrose oil, talk to your doctor to decide if the oil might be helpful for you.
In case you missed this news item amid the holiday hustle and bustle, Geraldine Doyle died on the day after Christmas. If that name doesn’t ring a bell, it’s probably because she’s better known to the public as Rosie the Riveter. Doyle is thought to be the well-known face of the female factory worker flexing her bicep in the “We Can Do It” poster. According to her obituary in the New York Times, Doyle didn’t realize that her likeness had been used for the poster until she came across a photo of it in 1982 and recognized Rosie the Riveter’s face as her own.
A 17-year-old Geraldine was working as a metal presser in a Detroit area factory when a United Press photographer snapped her picture on the job. Graphic artist J. Howard Miller then applied her image to the “We Can Do It!” for a Westinghouse Electric and Manufacturing Company campaign to discourage employee strikes and no-shows
. Although Rosie the Riveter is associated with World War II, Miller created the Westinghouse poster in 1932, and it was retired after less than a month. The poster resurfaced in the 1980s and is now one of the most-requested images from the National Archives.
, Doyle — the face of tough-as-nails women on the job — only worked at the metal factory for two weeks. The teenager was worried the labor might damage her hands.
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Topics in this Post: women in the workplace, rosie the riveter
Normally, air travels through the mouth, pass the oropharynx, down the trachea, to the small air passages, and finally to the alveoli. The alveoli are small, inflated, balloon-shaped structures where oxygen is exchanged for carbon dioxide, thus sustaining life. This exchange is interrupted when there is obstruction anywhere along this pathway. Causes of airway obstruction include excess production of mucous, smooth muscle contractions, inflammation, and destruction of the airways themselves. COPD is an umbrella term given to this group of diseases. The Global Initiative on Chronic Obstructive Pulmonary Disease — GOLD — , further defines COPD as chronic limitations to airflow due to obstruction that are partially reversible and more than likely progressive in nature. Asthma, emphysema, and chronic bronchitis are all considered chronic obstructive diseases. Patients may have mild to severe disease occasionally experiencing exacerbations or worsening of symptoms. Stable COPD patients may quickly advance to unstable due to infections, allergens, exercise, stress, chemical exposure, or trauma. This is when emergency relief drugs like Albuterol are necessary to alleviate symptoms during this time. Symptoms may include, difficulty breathing, wheezing, coughing, retention of carbon dioxide, among others.
Albuterol belongs to a class of drugs called beta-agonist. While other drugs are used in the relief of COPD, each drug has a specific role. A beta-agonist’s major role is to work to correct lung obstruction due to smooth muscle constriction. Its mechanism of action is at the cellular level. Albuterol binds with beta2-adrenergic receptors in the lungs’ system, causing smooth muscle relaxation and allowing the airway passages and alveoli to open up. This allows unobstructed air flow leading to a subsequent relief of symptoms. Combining with other drugs, beta-agonists work to prevent the release of inflammatory products, improve clearance of mucous and prevent the leakage of immune response cells into airways.
Delivering the drug to the lungs as efficiently as possible is essential. B-agonist come in different preparations. Albuterol can be delivered by mouth or by inhalation. As an inhaled bronchodilator, the drug is delivered to the lungs as a fine mist from a metered dose inhaler — MDI. Patient response time is also a consideration when using a drug
. When patients with COPD are in emergent need of relief, they need a drug with a quick response time. Albuterol works to help relieve symptoms in a matter of minutes. Albuterol stays in the blood stream for up to 8 hours. Therefore, it is considered a short-acting drug used in the short-term management of COPD. It is both fast and potent, helping to save lives.
If you care about the environment at all, disposing of electronics is seldom a simple task. You can’t just throw them in the trash bin, and recycling them often costs a chunk of cash — if you can even find a place to do it. If you’re lucky, there’s an electronics store near you with promotional free-recycling days, or, if the piece of electronics in question is a cell phone, you can find a nearby donation drop-off for a charity.
Why the hassle? Electronics components, and cell phones especially, are made of dangerous substances. A mobile phone is made of hundreds of different substances, some of which are toxic, including PVC, phthalates, zinc, lead, brominated flame retardants and arsenic [source: Reedy]. When a cell phone ends up in a landfill, it sits there, and sits there, sometimes for hundreds of years, giving those toxic substances lots of time to leach into the ground and water supply.
Thus the focus on recycling or donating your mobile phone — beyond conserving manufacturing resources, it’s crucial keep it out of a landfill. But more than 80 percent of the 150 million phones discarded each year still end up in the trash [source: Wenzel].
In response to heavy criticism, the mobile-phone industry has begun to focus heavily on greening up its product. In 2006, Nokia introduced a whole line of phones and accessories free of PVC
, and in 2008, the company marketed the first phone with no toxic flame retardants [source: Reedy]. LG removed harmful beryllium from its phones and is researching both environmentally friendlier paints and biodegradable plastics for its products [source: Reedy]. It’s not an easy process, since eco-friendly plastics are still a new industry and are not always as sturdy as the traditional stuff [source: Reedy].
All of the top handset makers are getting in on the “green phone” trend to varying degrees. In this article, we’ll look at five of the best examples of eco-friendlier phones and find out what makes them greener than their traditional counterparts.
At No. 5, we’ve got a phone from Sony with a reduced carbon footprint.
Metamucil is a fiber supplement brand that contains psyllium, a source of both soluble and insoluble fiber. Diabetes is a chronic disorder characterized by high blood sugar and cardiovascular complications
. Increasing dietary fiber can help you manage diabetes and reduce your risk of complications. Consult your doctor about the benefits of Metamucil and diabetes.
Psyllium, also called isapgol and ispaghula, comes from the seed of the Plantago ovata plant that grows annually in silty and sandy soils in North Africa, the Mediterranean region and Asia, especially India and Pakistan. India exports over 85 percent of psyllium available on the global market and the United States is the world¡¯s largest importer of the product. Psyllium is promoted as a bulk-fiber laxative that can be used to treat constipation. The soluble fiber content in psyllium may also reduce the amount of cholesterol you absorb from foods. The Food and Drug Administration approves a health claim that states, ¡°Soluble fiber from foods such as psyllium, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease.¡± Metamucil psyllium is sold in powder, capsule, wafer and liquid forms.
Soluble fiber can help you manage your blood sugar. Soluble fiber slows down the absorption of sugars in food into your bloodstream, preventing spikes and enabling you to control your blood sugar. Research published in the “Annals of Pharmacotherapy” in November 2010, reports psyllium supplementation may be a therapeutic option for people with Type 2 diabetes who take medication, but experience elevated concentrations of blood sugar after meals. The results of the research showed 10.2 grams of psyllium daily effectively reduces blood sugar.
High blood cholesterol is a risk factor for heart disease. Increasing dietary intake of soluble fiber can lower blood cholesterol levels and reduce the risk of heart disease in people with diabetes. Research published in the “American Journal of Clinical Nutrition” in June 2000 reports that psyllium lowers blood levels of total and low density lipoprotein cholesterol, the “bad” LDL cholesterol, by 4.7 percent and 6.7 percent, respectively
, in patients with high cholesterol who consume 5.1 grams of psyllium daily for between 24 and 26 weeks.
Diabetics who suffer from constipation can benefit from taking psyllium supplements. Research by scientists at the medical clinic at Krankenhaus Nordwest in Frankfurt, Germany, and published in “MMW Fortschritte der Medizin” in November 2007 discovered that up to 60 percent of patients with diabetes mellitus suffer from gastrointestinal tract symptoms, including constipation, that occur from disturbances of the autonomous nervous system. The scientists report that chronic constipation is a serious problem in diabetics and treatment should include long-term intake of laxatives, adequate amounts of liquids, dietary fiber and exercise.
Brazil nuts are the seeds of fruit that grows on Brazil nut trees, which are common in South America. Although these nuts are technically seeds and not nuts, they do exhibit similar nutritional characteristics to other nuts. Though Brazil nuts are calorie-dense, they do have beneficial characteristics that may encourage weight loss as part of a reduced-calorie diet.
Brazil nuts are high in calories, as each 1-ounce serving of these nuts provides 186 calories, or 9.3 percent of the daily suggested intake of 2,000. While this is a lot of calories for a small serving, you can burn off the calories relatively quickly if you exercise regularly. For example, a 13-minute walk at 4.5 miles per hour, or 8 minutes of running at 5 miles per hour would burn 186 calories, according to Harvard Medical School.
As with other nuts and seeds, Brazil nuts are rich in fat. Each 1-ounce serving provides about 19 grams of fat, of which just 4 grams is saturated. Although fat is calorie-dense, MedlinePlus explains that fat does provide feelings of fullness, so it can be helpful for dieting. Additionally, research published in the February 2006 issue of “Archives of Internal Medicine” suggests that reducing fat intake when dieting can be detrimental for weight loss compared with reducing carbohydrates.
Although high in fat, Brazil nuts are low in carbohydrates. Each 1-ounce serving of these nuts contains just 3.5 grams of carbohydrates. Thus
, Brazil nuts can be beneficial for low-carbohydrate diets, which research published in the March 2010 edition of “Nutrition & Metabolism” found to be more beneficial for fat and weight loss than a standard diet.
Brazil nuts are rich in fiber. Each 1-ounce serving contains 2 grams of fiber, meaning that nearly 60 percent of the carbohydrates in these nuts come from fiber. A research analysis published in the May 2001 issue of “Nutrition Review” concluded that increased fiber intake can promote improved satiety and better weight loss on reduced-calorie diets.
Brazil nuts contain 4 grams of protein per 1-ounce serving, which can be beneficial because protein supplies amino acids. Brazil nuts are particularly rich in arginine, an amino acid that may aid in weight loss. A study published in the July 2010 issue of “Amino Acids” found that arginine may help increase energy expenditure and promote fat loss, making it beneficial for dieting.