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News: This Genetic Defect Could Be Why Typhoid Mary Never Got Typhoid Fever

Whether or not a microbe is successful at establishing an infection depends both on the microbe and the host. Scientists from Duke found that a single DNA change can allow Salmonella typhi, the bacteria that causes typhoid fever, to invade cells. That single genetic variation increased the amount of cholesterol on cell membranes that Salmonella and other bacteria use as a docking station to attach to a cell to invade it. They also found that common cholesterol-lowering drugs protected zebrafi...

News: How Parental Choice Not to Vaccinate Kids Starts and Spreads Pertussis Outbreaks

It's not always easy to get to the root of an infection outbreak. Epidemiologists study infected people, contacts, and carefully examine where the infections happened and when. In the case of a 2012 outbreak of pertussis — whooping cough — in Oregon, scientists just published an analysis of how vaccination status affected when a child became infected during the outbreak.

How to Hack Databases: Running CMD Commands from an Online MS SQL Server

Welcome back, my hacker novitiates! There are many ways to hack databases, and most of these techniques require SQL injection (SQLi), which is a way of sending SQL commands back to the database from a web form or other input. In this tutorial, we will use SQL injection to get access to the underlying server. So instead of getting access to the database and its data, we will use the database as an intermediary to gain access to the underlying server.

How To: The Scientific Methods for Boosting Your Willpower

Willpower is a pretty significant word. It's the difference between sticking with a clean eating diet and diving face-first into a plate of brownies. It's what drags you out of bed on Monday mornings and into work rather than letting you stay snuggled under the covers asleep. And, most importantly, it's the kick in the butt we all require to both accomplish goals and make changes.

How To: 6 Hilarious Anti-Valentine's Day Treats

Valentine's Day can seem like Singles Awareness Day if you're newly broken up, but that's all the more reason to treat yourself on this pink-and-red consumerist holiday. Whether you're happily single or bitter and bitchy, there's definitely something on this list of Anti-Valentine's Day treats to fit your mood. Remember: cake is still cake!

How To: 6 Watermelon Hacks You Have to Try This Summer

Watermelon is the perfect snack for hot temperatures. It's hydrating, crisp, and refreshing, especially when it's chilled. Yet some people aren't content with leaving a good thing alone, which has given us many watermelon-based innovations, some great (vodka-filled watermelons) and some delightfully strange (square watermelons).

Hack Like a Pro: The Basics of the Hexadecimal System

Welcome back, my novice hackers! It has become clear from some of your questions that quite a few of you are unfamiliar with the hexadecimal system, or simply, hex. The hexadecimal system is used throughout computing and if you have never studied this Base16 numering system, it may appear relatively opaque.

How To: Choose Sunglasses

One of the vital fashion accessories is sunglasses. Sunglasses assist in creating a sort of unique identity for you. Your age, the shape of your face and of course your personal taste influences the precise style you decide on. There are some basic factors that must be put into consideration when you are thinking of buying your pair of sunglasses. It is important to be educated about what makes a quality pair of sunglasses. So when you want to choose your next pair of sunglasses, keep the fol...

How To: Walkthrough Shank (co-op mode) for the Xbox 360

This video series covers a complete walkthrough for Shank on the Xbox 360, played on Cooperative Mode. Watch all of these videos to see how you can beat Shank with your trusty sidekick during all the side-scrolling action. The co-op mode has its own unique story, acting as a prequel to the main single-player storyline. Check it out!

How To: Crochet a left handed magic heart potholder

In this tutorial, we learn how to crochet a left handed magic heart potholder. This will only take you a total of around seven rounds to finish from the beginning. Start out with a chain one and then do six half double crochets in the loop and join. For round two, you will do a chain one and then two half double crochets between each previous half double crochet before joining. Round two will be 12 half double crochets in total. For round three, you will chain one and then do two half double ...