In one sentence, describe what the following article is about: Its thickness should be at least 0.10 mm (0.0039 of an inch). While calcium oxide is usually used on sailboats for de-humidification, this chemical can go hard on your laptop. Instead, get some silica gel desiccant. Better yet, get a drying agent with a safe organic indicator which changes its color from orange when active to green when saturated. This makes it much easier to know when your laptop has had all the humidity removed from its inner workings. Turn the laptop off. Place in into the plastic bag together with enough desiccant. Leave it like this when not the laptop is not in use. This includes when docked at port because your laptop is still over water. The desiccant usually comes in small paper bags. It is really important the the desiccant does not come into direct contact with the laptop, so if it is not already covered in a bag, add one before placing it in with the laptop. While the laptop is on, humidity is not a problem as moisture accumulates only on surfaces that are at lower temperature than the ambient air is. It is only when it is not being used that moisture becomes a problem. Calculate the amount you'll need to bring with you for the duration of your sailing trip.
Summary: Purchase a drawstring plastic bag. Obtain a drying agent. Prepare the laptop for de-humidifying. Use the laptop as usual onboard without concern. When the desiccant changes its color or has absorbed all that it can, replace it right away.

Be aware that obesity, arthritis, and sore teeth can cause dandruff. Keeping the skin and fur conditioned requires the cat to groom regularly and spread the conditioning oils over the coat. If the cat is overweight or has mobility issues, such as those associated with arthritis, it physically won't be able to reach all parts of its body, which means those places are liable to have flaky skin. If this is the case then you should groom the cat daily until the cat is able to do it itself. If your cat is not grooming itself because it can't reach areas due to its weight, consider putting it on a diet. A leaner cat should be able to more effectively clean itself. A sore mouth can also stop the cat from grooming, and can also impact on its ability to eat. In these circumstances veterinary attention is essential, to extract loose teeth, clean away tartar, and give antibiotics against gum infection. It may not seem like a risk that's worth worrying about, but cats can have their skin damaged by the weather. This is especially true for cats with thin coats or no coats at all. Hot, dry conditions can lead to dried-out skin and even sunburn, so let your cat stay indoors when it's scorching out. Drier winter months can also be a source of flaky skin, even if there's less of a risk of sunburn. An occasional brushing can remove dead skin flakes, reducing dandruff. Use a gentle cat brush and stroke in the direction of the hair. Don't use too much pressure. You want to stroke and not scrub. Regular brushing is a great way to reduce dandruff. It improves the blood circulation to the skin, which carries oxygen and nutrients to the skin and helps condition it. However, expect the dandruff to initially get worse in the first 3 - 4 weeks. You will loosen up sloughed skin cells that are then shed into the coat. Always brush gently and stop right away if you notice irritated skin or signs of pain. Cats aren't like people in terms of bathing needs. They're quite good at keeping themselves clean, so they only need to be bathed very infrequently. Unless your cat's coat is visibly dirty, oily, or matted, you won't usually need to bathe it more than a few times per year. Bathing the cat more often can strip the essential oils from its skin, leaving it dried-out and flaky. Bathing the cat is mainly of benefit to you (rather than the cat) if you are allergic to cat dander, as it will temporarily wash it away. If you decide to bathe the cat then use a moisturizing shampoo, such as one containing oatmeal, and avoid human shampoos, which are too harsh and will strip out natural oils. Believe it or not, there are moisturizing lotions and topical ointments designed for cats with dry skin. Your best chance for finding these will be your local pet store, but if you can't find any there, your vet may be able to recommend some. You can also easily find these products available online.
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One-sentence summary -- Address physical conditions that are making the dandruff worse. Keep your cat out of hot, dry weather. Give the cat a gentle brushing. Avoid bathing your cat too often. Use a gentle ointment.

Q: The variance is a figure that represents how far the data in your sample is clustered around the mean. This figure will give you an idea of how far your data is spread out. Samples with low variance have data that is clustered closely about the mean. Samples with high variance have data that is clustered far from the mean. Variance is often used to compare the distribution of two data sets. This will give you a figure of how much each data point differs from the mean. For example, in our sample of test scores (10, 8, 10, 8, 8, and 4) the mean or mathematical average was 8. 10 - 8 = 2; 8 - 8 = 0, 10 - 8 = 2, 8 - 8 = 0, 8 - 8 = 0, and 4 - 8 = -4. Do this procedure again to check each answer. It is very important you have each of these figures correct as you will need them for the next step. You will need each of these figures to find out the variance in your sample. Remember, in our sample we subtracted the mean (8) from each of the numbers in the sample (10, 8, 10, 8, 8, and 4) and came up with the following: 2, 0, 2, 0, 0 and -4. To do the next calculation in figuring out variance you would perform the following: 22, 02, 22, 02, 02, and (-4)2 = 4, 0, 4, 0, 0, and 16. Check your answers before proceeding to the next step. This figure is called the sum of squares. In our example of test scores, the squares were as follows: 4, 0, 4, 0, 0, and 16. Remember, in the example of test scores we started by subtracting the mean from each of the scores and squaring these figures: (10-8)^2 + (8-8)^2 + (10-8)^2 + (8-8)^2 + (8-8)^2 + (4-8)^2 4 + 0 + 4 + 0 + 0 + 16 = 24. The sum of squares is 24. Remember, n is how many numbers are in your sample. Doing this step will provide the variance. The reason to use n-1 is to have sample variance and population variance unbiased. In our sample of test scores (10, 8, 10, 8, 8, and 4) there are 6 numbers. Therefore, n = 6. n-1 = 5. Remember the sum of squares for this sample was 24. 24 / 5 = 4.8 The variance in this sample is thus 4.8.
A: Find the variance. Subtract the mean from each of your numbers in your sample. Square all of the numbers from each of the subtractions you just did. Add the squared numbers together. Divide the sum of squares by (n-1).

Problem: Article: This is found on the upper-left corner of the screen. You'll be shown all the featured and available channels. This will enable you to view the channel's profile. On the channel's profile page, you can tap "Preview" to read sample posts. Once you've chosen a channel, simply tap on Join, found on the bottom center of the screen. The channel will now be listed in your Subscribed Channels section.
Summary:
Tap on the Channels icon. Tap on a channel. Tap Join.