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...
First of all, I would like you all to meet my good friend Iggy. There he is, in all his scaly reptilian glory. As you can see, he spends a lot more time on top of his cage than inside of it. You see, Iggy here doesn't deal well AT ALL with confinement. I don't know if it's possible for a lizard to be claustrophobic, but if it is possible, then Iggy definitely is. When his previous owner gave him to me, I tried to keep him in the cage, but I quickly realized that it was a bad idea. When confin...
Wherever there are people, the party is sure to follow. Well, a party of microbes, at least. That is what scientists at NASA's Jet Propulsion Laboratory have found after a 30-day microbial observation of the inflatable lunar/Mars analog habitat (IMAH).
This two-part tutorial series offers a look at the basics of smoke simulations. This first part looks at setting up a simulation, the fields involved, how to visualise them. It also looks at temperature and bouyancy as well as vortex confinement. Whether you're new to Side Effects Software's popular 3D production program or a seasoned graphic artist just interested in better acquainting yourself with the application, you're sure to be well served by this free video tutorial. For more informat...
Tips If you are taking a relatively uncomplicated flight to post, it may be to your advantage to take your pet along as excess baggage. Ask the travel agent to provide you with a cost comparison of excess baggage versus air freight shipment.(Remember also to save your receipts for shipment as a legitimate "moving expense" for the IRS.)
International Pet Travel: Taking Your Pet Animal to a Foreign Country If you are taking a pet to another country (permanently or for a visit), contact that country's consulate or embassy for information about any requirements that you must meet. A list of consulates can be found at Foreign Consular Offices in the United States
