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How To: Define an antiderivative in calculus

The relationship and the definition of derivatives and anti-derivatives is described in this video. First, consider a function F(x)=x^3-5x+2 and another with small 'f', f(x)=3x-5. f(x) here is the derivative of F(x). However, on the contrary, F(x) is said to be the anti-derivative of f(x). There is a catch though; even though F(x) has only one derivative in the form of f(x), f(x) here has more than one anti-derivative. This is because f(x)'s anti-derivatives are of the form F(x)=x^3-5x+c, whe...

How To: Define an indefinite integral in calculus

In this video tutorial, viewers learn how to define an indefinite integral in calculus. Finding the anti-derivatives of a function is called anti-differentiation. The f(x) is the derivative of F(x), while F(x) is the anti-derivative of f(x). If F(x) is the anti-derivative of f(x), then F(x) + c are all anti-derivatives of f(x). This video is very descriptive and clearly explains all the functions of this mathematical function. This video will benefit those viewers who are students, and are in...

News: How Gut Bacteria Could Set Off the Immune System in Rheumatoid Arthritis

As if the swollen, painful joints of rheumatoid arthritis weren't enough, the disease is the result of our immune system turning against cells of our own body. Ever since this realization, scientists have worked to find the trigger that sets the immune system off. Scientists believe that gut bacteria may have a role in initiating the abnormal immune response. Now, a team of researchers from Boston has figured out how that might occur.

How To: Remove a rogue anti-virus software from your PC

Trojans, viruses, and malware can be more than a simple nuisance to your computer--they can destroy data and ruin your system. This video tutorial shows how to get rid of malicious software on your computer. When combating a virus, it's best to use multiple applications to insure system extraction.

Put Down the Ointment: Topical Antibacterials Totally Disrupt Your Skin Microbiome

The next time you suffer a cut or abrasion, think twice before you reach for the Neosporin. It's time, and mom, tested — you get a cut, you wash it carefully, then apply some triple-threat antimicrobial ointment. You may or may not slap on a band-aid. We won't cover it here, but so that you know, covering the wound with a sterile dressing or band-aid is a good idea.

News: Sentinel Nerve Cells Spy on the Intestines, Linking Gut & Brain

If the all the fingerlike projections in our gut were flattened out, its surface area would be 100 times bigger than our skin's. It's so large that the actions of just a small part of it can impact our health. A new research study has found that enterochromaffin cells in the intestinal lining alert the nervous system to signs of trouble in the gut — trouble that ranges from bacterial products to inflammatory food molecules.

How To: Make an anti-aging milk, honey & egg facial mask

In this video, we learn how to make a milk, egg and honey facial mask to help achieve younger looking skin. First, take a whole egg and break it into a bowl. After this, place 2 tbsp of powdered milk into the same bowl. Next, place 1 tbsp of honey into the bowl. Now, mix together with a fork until they are all well blended. Make sure you have a clean face, then apply mask to your face. Leave for around 10 minutes or until mask is completely dry. After this, rinse your face with warm water and...

How To: Remove and replace the brake pads on your car

In this tutorial, we learn how to remove and replace the brake pads on your car. First, wash the brake caliper with cleaner, then use a wrench to remove the caliper bolts. After this, remove the assembly and the outer brake pads. Remove the inner brake pads and apply anti-squeal to the backing plates of the pads. Install the pads and then the caliper along with the bolts. From here, you will place the wheel and bolts back onto the car and you will be finished! Make sure everything is tight an...

How To: Antidifferentiate functions with radicals in calculus

This video demonstrates how to do anti-differentiate functions with radicals in calculus. To simply problems, try to substitute. For example, in the problem, the integral of x times the square root of x plus 2 dx. You can substitute w for everything underneath the radical: i.e. x + 2. When you simplify, it becomes: the integral of x times the square root of w dw. Now, you need to get rid of the x, which you can do with a substitution: w – 2 = x. Now, plug in the values and simplify it.

How To: Give a Tanaka face massage

In need of a face massage? Japanese beauty expert, Yukuko Tanaka, presents her anti-aging face contouring massage. In this four-part tutorial, learn about how to apply this routine to add to your skin care regimen, which will reduce wrinkles, prevent sagging skin, improve puffy eyes and under-eye bags.

How To: Create a wavy hair look with extensions

Wavy hair is a classic, glamorous look, but not everyone has the exact hair for it. With this video, we learn a quick and easy way to get that timeless wavy look using extensions. It's entirely easy. Beginning with a spritz of water or your best anti heat damage spray, you then merely use your crimping or curl iron the same way you would with your normal hair, applying a light touch, not going for actual curl, and checking your results often. When done, you can spritz your hair again, and run...

How To: Paint the hood of Axon racing razorback racer

This video is on how to paint the hood of the axon racing razorback anti gravity racer and how to do some basic effects. I use the liquid masking method of Bob Dively and show how to use airbrushes such as Iwata in my other how to paint video. You can use this method with any paint from pactra to spaz stix and any color of black, blue, purple, green, yellow, silver, chrome, etc. I personally prefer Pro line (or proline) shells over their durability but there are other shells out there. Just e...

How To: Use the anti-tank rockets in Battlefield 2

In the PC game, Battlefield 2, you're pit against some of the most talented and dedicated gamers in the world. They know every weapon and all the shortcuts to use against you. So, to compete with them you need to know a few things yourself. In this video tutorial find out how to exactly use the anti-tank rockets. Enjoy!

News: Livestock Antibiotic Use Increases Threat of Resistant Microbes to Humans

Antibiotics used to prevent diseases in livestock are creating a world of hurt for humans and the soil we depend on for food. Bacterial resistance to antibiotics is a global health issue. The overuse, underuse, and poor use of these life-saving drugs is rapidly removing them as a treatment option for serious infections in humans—plus bacteria are naturally adaptive.

How To: Remove fake antivirus applications from your Windows PC

So-called "anti-virus" program doing more harm than good? In this clip, you'll learn how to uninstall fake anti-virus and anti-spyware software from your computer. It's easy! So easy, in fact, that this home-computing how-to from the folks at Britec can present a complete overview of the process in just over five minutes. For more information, including step-by-step instructions, take a look.

News: Flash-Freeze Anything with the Anti-Griddle

Essentially, the Anti-Griddle does exactly what its name promises: it turns things almost instantaneously cold when you drop them on its "grilling" surface. Unlike home methods of flash freezing, its staggeringly low temperatures (-30°F/-34.4°C) allows ingredients that normally can't be frozen—like oil or alcohol—to turn into solids in the wink of an eye. As you might imagine, this allows chefs to play with textures and tastes in a way that was previously unimaginable.