Problem: Write an article based on this summary: Add more green with plastic plants. Use novelty items to create a theme. Use ceramic pieces to add art. Use old glass jars or bottles for cheap color.

Answer: While plastic plants may not sound that appealing, many of today's products can actually look quite lifelike. Like live plants, you can use plastic plants to hide your filtration system. You might also try some plants that are about mid-height in the center of the aquarium. Smaller plants can go around rocks and other items. Just make sure you buy plants that are approved for fish tanks. You don't want to place something in the tank that could harm your fish. Most pet stores sell novelty items to add to your tank. You can find anything from treasure chests to plastic divers and mermaids. These items are great for creating a particular feel. You can make your tank feel like the bottom of the ocean with a pirate ship and treasure chest, which also adds a sense of adventure. You could create a fantastical world with tiny fake squid, mermaids, and other fantastical novelty items you can find. Many of these items pertain to an ocean theme, so your choices may be a little limited. Choose items that are made for fish tanks, as other plastics may leach over time. Ceramic pieces can add an artistic touch to the aquarium, as they can be painted in a wide variety of patterns. You can use ceramic pieces to create a color theme or set a certain mood because they come in so many different styles and colors. Try bright Mexican-style pieces for flair and color. You could even pick pieces that have a nautical theme. Add a few plates at the back as a backdrop to your tank or a vase on its side for fish to swim in and out of. For a bit of class and whimsy, consider a few mismatched teacups and saucers or even a whole teapot if your tank is big enough. Mugs and other similar dishes can also create hiding places for your fish. You can purchase ceramic pieces at almost any big box store or decorating store. However, you should check to make sure your pieces are safe. Any unglazed ceramic piece is fine. If it's glazed, it should be labeled "food safe," "dinnerware safe," or be sold as dinnerware. If it's safe for you to eat off of, it should be safe for the aquarium. Another option that you can do for free is to upcycle old jars or bottles. Pick bright colors, like green or blue, which help create a beach-like feeling, as they're reminiscent of beach glass. Clean them out thoroughly, and remove the label. Make sure you get all the glue off. Then you can set the jar on i's side in the aquarium, making another place for the fish to play in. Glass is best because it won't leach chemicals. Try a blue or green jar, which will add color to the aquarium.

Problem: Write an article based on this summary: Understand the relationship between oxygen and the blood. Understand the reasons for the procedure. Understand how the pulse oximeter works. Know the risks of the procedure. Select the appropriate pulse oximeter that fits your needs. Make sure the oximeter is charged.

Answer: Oxygen is breathed into the lungs. The oxygen then passes into the blood where the majority of the oxygen attaches to hemoglobin. Hemoglobin is a protein located inside our red blood cells that transports the oxygen through the bloodstream to the rest of our body and tissues. In this way, our body is given the oxygen and nutrients it needs to function. Pulse oximetry is used to assess oxygen saturation in the blood for a variety of reasons. It is often used in surgeries and other procedures that involve sedation (such as a bronchoscopy) and to make any adjustments of supplemental oxygen. A pulse oximeter may also be used to assess whether an adjustment of supplemental oxygen is needed, whether lung medications are working effectively, and to determine patient tolerance to increased activity levels. Your physician may also recommend pulse oximetry if you use a ventilator to support breathing, suffer from sleep apnea or have a serious medical condition, such as heart attack, congestive heart failure, chronic obstructive pulmonary disease (COPD), anemia, lung cancer, asthma, or pneumonia. Oximeters use the light absorptive characteristics of hemoglobin and the pulsating nature of blood flow in the arteries to measure the level of oxygen in the body. A device called a probe has a light source, light detector, and microprocessor, which compares and calculates the differences in oxygen-rich versus oxygen-poor hemoglobin. One side of the probe contains a light source with two different types of light: infrared and red. These two types of light are transmitted through the body's tissues to the light detector on the other side of the probe. Hemoglobin that is more saturated with oxygen absorbs more of the infrared light, while hemoglobin without oxygen absorbs more of the red light. The microprocessor in the probe calculates the differences and converts the information to a digital value. This value is then assessed to determine the amount of oxygen being carried in the blood. Measurements of relative light absorption are made multiple times every second. These measurements are then processed by the machine to give a new reading every 0.5-1 second. The readings of the last 3 seconds are then averaged out. In general, the risks associated with pulse oximetry are minimal. If using the oximeter for a prolonged time, you may experience tissue breakdown at the site where the probe is applied (e.g., finger, ear). Skin irritation can sometimes occur when using adhesive-containing probes. There may be other risks depending upon your medical health and any specific conditions you may have. Consult your doctor if you have any concerns before beginning the procedure. Several different types of pulse oximeters are available. The most popular are portable handheld and fingertip pulse oximeters. Portable pulse oximeters can be purchased from a wide array of stores, including drugstores like Walgreens and CVS, big-box stores like Walmart, and even online. Most pulse oximeters are clip-like and look like a clothespin. There are also adhesive probes that can be placed on your finger or forehead. Appropriately sized probes should be used for children and infants. Plug oximeter into grounded wall outlet if the unit is not portable. If the unit is portable, ensure sufficient battery charge by turning it on before using.

Problem: Write an article based on this summary: Include the date and the amount being borrowed, or the amount agreed on for the service or product. Include a due date for return of the funds. Include how much interest you will charge. Sign the document yourself. Make sure the other party signs the document. If possible, have a witness (optional).

Answer:
How much did you loan out? When do you expect the borrower to pay you back? If multiple payments will be made, agree on specific dates for the payments. Especially if you're lending money to a friend or family member, it may seem a little extortionate to charge interest. But there are several good reasons why you may want to charge the person you're giving money to a little bit of interest: If you're giving away money without interest, you're losing money. You're losing purchasing power (the ability to buy and invest with the money you're lending) and inflation is outstripping your money. If you charge someone interest, the borrower may be more likely to pay you back quicker than had you not. Think about it: Interest lasts as long as the life of the loan, so if the borrower holds on to the money longer, they'll end up paying more interest. Don't charge more than 15% or 20%. In fact, interest rates above 15% or 20% might not even be allowed under predatory lending laws. So keep the interest rate at something manageable and both parties will be happy. Include your signature along with your legal name. Have them put down a signature along with a legal name. Although a witness does not make or break the IOU, it's helpful if you ever need to go to court. A witness might be able to prove a binding verbal contract took place.