2012-05-25

Meta Widget Turns Nearly Any Web Page Into a Widget on Android [Video]

Meta Widget Turns Nearly Any Web Page Into a Widget on Android [Video]:
Android: Widgets are awesome, but if you're keeping your eye on a service or web site that doesn't have a widget in the Play Store, you can make your own with Meta Widget. More »








Natural mosquito repellents

Natural mosquito repellents:
Mosquitoes can be a nuisance when trying to enjoy the outdoors, especially if you're trying to host guests. The faint buzzing reminds us of those pesky pricks we receive when we least expect it. Soon thereafter the itching and swelling begins as our bodies react to the...

2012-04-30

Alternative treatments dissolve cataracts, prevent their return, and help to avoid surgery

Alternative treatments dissolve cataracts, prevent their return, and help to avoid surgery:
Surgery is usually the only option offered by conventional medicine to people with cataracts; however, there are alternative treatments that may dissolve cataracts preventing their return. Cataracts occur when the eye's natural lens becomes cloudy, causing vision loss...

Use raw honey for health, skin, hair, and more

Use raw honey for health, skin, hair, and more:
Raw honey is more than just a natural sweetener. Honey has a variety of uses in your beauty regimen and for medicinal purposes. Raw honey, which is not pasteurized or refined, can be especially useful because of its nutritional properties. Although you may have heard...

Six natural remedies for acid reflux

Six natural remedies for acid reflux:
Acid reflux, commonly called heartburn, is caused when digestive acids flow up from the stomach and into the esophagus. The esophagus, located in the heart region of the chest, becomes irritated with a burning sensation.

There are lesser known symptoms other than...

2012-04-26

Medical science and herbalists agree: hawthorn berries are a "great heart food"

Medical science and herbalists agree: hawthorn berries are a "great heart food":
Hloh
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7 medicinal herbs and spices that help lower blood pressure

7 medicinal herbs and spices that help lower blood pressure:

Spice up your life

In a published study featured in the Journal of Medicine, it was revealed that common spices can protect from heart disease and the deterioration brought about by aging. In the said study, researchers discovered a connection between the phenol content of certain herbs and spices and their capacity to prevent glycation and formation of AGE compounds that are responsible for premature aging and heart disease.

As a way to manage your blood pressure, herbs and spices are a fantastic way to increase the medicinal value of your food. Below are some herbs and spices you may have been enjoying with no idea as to their value:

1. Garlic - Garlic contains allicin, a substance which has antibacterial, antioxidant, lipid lowering and anti-hypertension properties. In a pilot study made at Clinical Research Center of New Orleans on whether garlic could lower blood pressure, nine patients with severe hypertension were given a garlic preparation containing 1.3 % allicin. Sitting blood pressure fell with a significant decrease in diastolic blood pressure only five to 14 hours after the dose. Moreover, it was proven in a 2009 study that fresh garlic has more potent cardio-protective properties than processed garlic.

2. Cinnamon - Cinnamon not only prevents heart disease, it can also prevent diabetes. The Center for Applied Health Sciences in Ohio conducted a study of 22 subjects, half of which were given a 250mg of water soluble cinnamon daily while the other half were given placebo. It was discovered that those who drank cinnamon had a 13 to 23 percent increase in antioxidants connected with lowering blood sugar levels.

3. Onions - Onions contain quercetin, an antioxidant flavonol found to prevent heart disease and stroke. In a research study published in the Journal of Nutrition, subjects with hypertension experienced a decrease in their blood pressure by 7mmHg systolic and 5 mmHg diastolic as opposed to those who were taking placebo.

4. Olives - This herb is a significant part of the Mediterranean diet, recognized to be one of the healthiest in the world. Oil made from olives has been found to reduce blood pressure. In a study conducted on the importance of olive oil, Dr. L. Aldo Ferrara, Associate Professor at the Frederico II University of Naples in Italy discovered that the daily use of 40 grams of olive oil reduced the dosage of blood pressure medication in hypertensive patients by about 50 percent. Polyphenols in extra-virgin olive oil was credited for the significant reduction of blood pressure.

5. Oregano - This herb contains the compound carvacrol which has been proven to be effective against blood pressure. In a study conducted on animal subjects, by researchers from Eskisehir Osmangazi University in Turkey, carvacrol was found to reduce heart rate, mean arterial pressure as well as the systolic and diastolic blood pressures.

6. Hawthorn - This herb has been traditionally used to treat high blood pressure. In one study conducted in Reading, UK, 79 type-2 diabetic patients were randomized to receive 1200 mg of hawthorn extract while another group received medication for high blood pressure. Results revealed that patients taking hawthorn by the end of the 16th week showed a reduction in their mean diastolic pressure.

7. Cardamom- In one study published in the Indian Journal of Biochemistry and Biophysics, 20 subjects newly diagnosed with primary hypertension were administered 3 g of cardamom powder. After the end of the 3 months, all the subjects experienced feelings of well-being without any side effects. Moreover, the study was able to demonstrate that blood pressure was effectively reduced. It also improved antioxidant status while breaking down blood clots without significantly altering blood lipids and fibrinogen levels.

Taking advantage of the antioxidant and anti-inflammatory effects of spices and herbs is an excellent way to boost your body's health. Herbs have low calorie content, increase the medicinal value of your food and allow you to use natural forms of lowering blood pressure. Mix them up with your soups, salads, fish and meat and vegetable dishes. It's a healthier and cheaper alternative to keeping bottles of prescription drugs and synthetic supplements.
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2012-04-24

Notes on a Garage Geopolymer Prep

Notes on a Garage Geopolymer Prep:

“Geopolymers” are artifical stone materials that are somewhat like cements, and have interesting applications in many of the same areas. There are, however, some important differences, both practical and theoretical, between a geopolymer, and, say, a mortar or concrete based on Portland cement. Practically speaking, geopolymers show impressive performance, in some tests, above and beyond those of run-of-the-mill cement and concrete mixes. On the theory side, geopolymers are critically different from cements because they don’t depend on the hydration of lime (CaO) to set up. Lime is made by strongly heating limestone to drive off carbon dioxide, a process which, given the huge amounts of lime required by the huge amounts of cement our world consumes, is a major contributor to atmospheric CO2 emissions. Hence, a lot of the excitement about geopolymers, apart from their potential high-performance applications, has to do with reducing our collective carbon footprint.
Anyway, big-picture takeaway: A chunk of cast geopolymer is a very different thing than a chunk of cast cement. If you’re a hands-on type, like me, your first question on hearing about this, or any kind of fancy material, is likely to be how do I get my hands on some? Data, theory, and popular science all have their uses, but ultimately that’s always the best way for me to understand something: Hold it in my hands, maybe poke it with a stick. Best of all, of course, is if can make it myself.
So I started digging for the practical protocols the lab folks were using to make little blocks of geopolymeric stone to run compression tests on. This kind of thing is always frustrating because a lot of the hands-on info is locked away behind academic publishing paywalls, and I have no intention of shelling out $39.95 to download one six page paper from ten years ago, thank you very much Mr. Elsevier. Anyway, perseverance paid, and I eventually found a 2008 Journal of Materials Science paper by Australian researchers J. Davis, et. al., posted (probably illegally) to scribd.
Table 2 is particularly instructive. It includes four formulae for geopolymer compositions, one of which (“SGP”) is both highest-performing, in terms of compressive strength, and simplest to make. Pound for pound, it’s also probably the most expensive, which would be a problem if I wanted to build a viaduct out of it. But all I want to do is cast a couple small pieces. So we’re good.
What follows are my notes on adapting the “SGP” protocol from this paper for garage prep. It is a straightforward formula, and most of the leg-work, as is so often the case in this kind of thing, is in sourcing materials in a way that does not require going through one of the big, expensive chemical supply houses that really doesn’t want to deal with citizen scientists. It’s important to note that I haven’t actually done this, yet, so I can’t vouch for its efficacy or safety. But I wanted to publish the reference and my thoughts about a DIY version before concrete month gets away from me. If you’re interested, read on, and please do comment if you spot anything fishy; if not, stay tuned for a follow-up about how it works out.

Starting Materials
Sodium hydroxide – AKA lye. Available at many hardware stores as drain cleaner, e.g. “Red Devil.” This is strong base and you need to understand how to handle it safely.
Metakaolin – This is a form of kaolin, a common clay, that has been chemically changed by heating at about 750° C for several hours. It is commonly prepared this way in the literature, but most people don’t have a temperature-controlled furnace in the garage for performing this operation. Fortunately, so-called “highly reactive metakaolin” is available commercially, online (in the US, anyway) for use in cement countertops. A 25-lb bag will be well more than we need. If this process works, I may divide up my leftovers for sale in small, cheap portions for those who want to play along at home. The MSDS suggests that it is not particularly hazardous, but as with all fine powders, a dust mask is probably a good idea.
Sodium silicate solution – It is probably possible to prepare a homemade solution of sodium silicate that will work in the geopolymer process by using a procedure like this one from NurdRage, in which finely-crushed silica gel desiccant is dissolved in strong lye solution. In the literature, however, geopolymer samples are seemingly always prepared from a ready-made commercial sodium silicate solution in water. Unfortunately, the “grade O” commercial sodium silicate solution specified is only available from specialty suppliers; however, I think I can fudge it by adjusting the composition of the common “grade N” solution used, e.g. to repair mufflers, by adding lye flakes. So we’ll need some “grade N” sodium silicate, to start. “Grade N” is also called “Grade 40″ and “water glass,” and Googling turns up several online sources.
Step 1: Prepare sodium silicate solution
The easiest way to measure ingredients for this process is by weight. You’ll need a scale with a capacity of at least 1000g. Put a 250 mL beaker on the scale, record its weight, and, taking appropriate precautions for handling strong base, add 4.4 grams of lye flakes. Now add an additional 62 grams “grade N” sodium silicate solution. Remove from scale and stir to dissolve lye. Once this solution is well mixed, cover it and let it stand, at room temperature, for 24 hours before use. Note that this solution is now slightly more dilute than commercial “grade O” sodium silicate, but the Davis SGP recipe actually calls for diluting the commercial solution just a bit, anyway, and the math works out pretty closely.
Step 2: Add metakaolin
Remove the cover, put the beaker back on the scale, and bring the the total weight of the solution up to 100g by adding dry metakaolin powder. You may want to add it in batches, with stirring in between. The metakaolin will not dissolve; you should end up with a paste or slurry. The polymerization reaction will begin as soon as you start adding the metakaolin, but you should have at least an hour’s pot life. If it’s working, the mixture should begin to give off heat.
Step 3: Casting
Transfer the mixture to a small metal mold. I will probably use a steel muffin tin—they’re cheap, about the right size, and if I want to I’ll be able to cast and cure multiple samples in a single pan. Seal it well with aluminum foil. The idea is to keep water from getting out during the curing.
Step 4: Curing
The “SGP” mixture should polymerize at room temperature, but geopolymer samples are generally cured with mild heat, and if you want to experiment with other aluminosilicates besides and/or in addition to metakaolin (e.g. fly ash), the curing step seems to be necessary. Generally, the protocols call for heating to 60° C for 24 hours. That’s 140° F, and I’m comfortable doing that in my kitchen oven, as long as I’m not going to be leaving the house during that time.
Final thoughts
Demolding the cast samples may be a problem that eventually calls for some kind of mold release. But it’s not reported in the literature protocols I’ve seen, so I’m going to start without it. I’ll probably want to experiment with adding aggregates, and sand is convenient and conventional. The Davis paper describes mixtures with 40 wt% and 60 wt% sand additions to the “SGP” formula.
More:
Super cements aka “geopolymers”


Cinnamon: the blood sugar stabilizer

Cinnamon: the blood sugar stabilizer:
Cinnamon is one of the most anti-oxidant rich herbs on the planet. It has been revered by nearly every culture for centuries for its sweet taste and pleasant aroma. Cinnamon has been shown to have remarkable medicinal qualities that enhance blood sugar signaling, reduce...

2012-03-15

Easy homemade remedies relieve arthritis and joint pain

Easy homemade remedies relieve arthritis and joint pain:
Homemade remedies for arthritis, gout and other joint pain are never farther away than the kitchen cupboard or the refrigerator. Joint disease is the result of various causes ranging from aging, to over-use and autoimmune diseases that attack joints and surrounding tissue...

Prevent or reverse hardening of the arteries without deadly pharmaceuticals

Prevent or reverse hardening of the arteries without deadly pharmaceuticals:
It's commonly known that cranberry juice is beneficial for clearing and eliminating infections of urinary tracts. But several studies have recently discovered another benefit for cranberry juice - heart health.

Hardened and obstructed arteries lead to blood vessels...

2012-03-14

Bye-bye allergy head - Six tips for easy breathing this allergy season

Bye-bye allergy head - Six tips for easy breathing this allergy season:

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Back to Nature Vegetable Soup

Back to Nature Vegetable Soup:
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Ellen's Vegetable soupI love big flavors — lemon, saffron, chili, wine. But my trip to Paris reminded how full of flavors vegetables are all by themselves — naturally. This comforting soup lets the vegetables do the talking and is perfect for that in-betweeny time when the calendar says spring but the thermometer still says winter.
Serves: 6
  • 3 tablespoons olive oil
  • 1 leek, chopped
  • 3 cloves garlic, minced
  • 3 carrots, chopped
  • 1/2 pound mushrooms (about 2 cups), sliced
  • 1 red pepper, chopped
  • 2 ribs celery plus celery leaves, chopped
  • 5 cups vegetable broth
  • 1/2 pound green beans (about 2 cups), chopped into bite-sized pieces
  • 1/2 cup noodles
  • Sea salt and fresh ground pepper to taste
  • 1 bunch flat-leaf parsley, chopped fine
Heat olive oil in a large stock pot over medium-high heat until the oil turns lustrous. Add chopped leek, garlic and carrots. Cook about 5 minutes, stirring occasionally, until vegetables relax and start to soften.
Add mushrooms, red pepper and celery and continue to cook, stirring now and again for another 10 minutes, letting vegetables caramelize.
Add broth, bring to boil, then cover, reduce heat to low and let soup simmer for 30 to 45 minutes.
Add green beans and pasta and cook, covered, for another 10 to 15 minutes, until pasta is al dente, the beans are tender yet maintain their bright lively greenness, and the broth slightly thickened.
Season with sea salt and pepper to taste. Sprinkle in the confetti of parsley and serve.
Ellen Kanner writes the Meatless Monday column for The Huffingon Post, is the Edgy Veggie, a syndicated columnist, and Dinner Guest blogger on Culinate. She is also a contributor to Bon Appetit, Relish, Eating Well, Vegetarian Times, More, the Miami Herald and regional publications across the country including Pebble Beach and Palm Beach Illustrated. 

2012-02-29

Play Old DOS Floppy Disk Games on Your Android Tablet [Video]

Play Old DOS Floppy Disk Games on Your Android Tablet [Video]:
Most retro gamers use emulators to play old school games on their Android device, but iIf you still have your old floppy disk games and a USB floppy drive ($11 at Amazon) you can play them on your Android tablet directly using an Android app port of DOSbox. More »

Rinse Berries in a Vinegar Solution to Keep Them Fresh Longer and Mold-Free [Food Hacks]

Rinse Berries in a Vinegar Solution to Keep Them Fresh Longer and Mold-Free [Food Hacks]:

It's pretty disappointing to come home with fresh, scrumptious berries only to find them rotting and covered in mold just a few days later. Cook's Illustrated says a little vinegar solution can keep that fuzzy mold off your delicate berries and extend their life. More »

The vinegar and water solution destroys bacteria and mold spores, helping the berries last longer. Here are the instructions for the best way to wash, dry, and store berries:
1. Wash berries in bowl with 3 cups water mixed with 1 cup white vinegar. Drain in colander and rinse under running water.
2. Place berries in salad spinner lined with 3 layers of paper towels. Spin for 15 seconds or until berries are completely dry.
3. Store berries in paper towel-lined sealable container, keeping lid slightly open to allow excess moisture to escape.
Alternately, you could just dunk berries in hot water to give them a few extra days of mold-free life, but the vinegar rinse might be more effective. Reddit user am4zon reports that using a vinegar rinse helps raspberries last a week or more and strawberries almost two weeks.
If you have any fresh produce hacks of your own, share them with us in the comments.
Caring for Berries | Cook's Illustrated

The Health Hazards of Using Mobile Devices (and What You Can Do About It) [Infographics]

The Health Hazards of Using Mobile Devices (and What You Can Do About It) [Infographics]:
Staring at screens for three hours (or more) a day or having our necks flexed down for extended periods of time while texting surely can't be good for us. Just as a reminder, the "Are Mobile Devices Destroying Your Body?" infographic points out these and other health implications when using mobile devices and things we can do to minimize them. More »