In one sentence, describe what the following article is about: Starches offer a low-fat, simple thickening alternative for sauces that is especially suitable for beginning cooks. You can even add a dash of herbs or spices to starch slurries to make them more flavorful. Starch thickeners are mostly flavorless, but they can give sauces an artificial sheen, making them less popular for stews or meat gravies.  Cornstarch is inexpensive, readily available, and best for dairy-based sauces. Do not use cornstarch if you plan on freezing a sauce for later use, however, as cornstarch creates a spongy texture in sauce upon freezing. Combine 1 tablespoon (8 g) of cornstarch with 1 tablespoon (15 ml) of cold water in a small bowl. With a whisk, blend them together until smooth. Gradually whisk the mixture into your cooked sauce that needs thickening. Continue stirring and cooking the sauce over medium to medium-high heat. Bring it to a boil. Reduce the heat to low, and stir the sauce for an additional two minutes, allowing the cornstarch to completely finish cooking and thickening. If you don’t cook your starches, they can leave an aftertaste in your sauce. The longer you cook your sauce or soups, though, the better the flavor will be. Arrowroot is best for more acidic sauces, but avoid mixing arrowroot with dairy. However, you can use arrowroot when cooking with acidic dairy products like buttermilk. Arrowroot starch gives liquids a glossy appearance, making it especially desirable for dessert sauces or reductions.  In a small bowl, mix equal parts of the arrowroot starch with cold water, whisking thoroughly to beat out any lumps. Add the arrowroot mixture to the already hot liquid and cook for 30 seconds at medium-high heat, stirring constantly. Remove the sauce from the heat, and allow it to finish thickening as it stands. If you are cooking pasta, potatoes, or another type of starch to go with your meal, set aside a cup of the water that you used to cook your starch. Working a spoonful at a time, stir your starch water into your simmering sauce, soup, or other liquid. Continue this process until you get your desired thickness.
Summary: Use cornstarch in sauce. Use arrowroot starch to thicken liquids. Add starch water to sauces and soups.

You need to leave enough room so that you can set up a factor tree below it. You can use other methods to factor a number. Read Factor a Number for more instructions. For example, if you want to know many divisors, or factors, the number 24 has, write 24{\displaystyle 24} at the top of the page. These are two divisors, or factors, of the number. Draw a split branch coming down from the original number, and write the two factors below it. For example, 12 and 2 are factors of 24, so draw a split branch coming down from 24{\displaystyle 24}, and write the numbers 12{\displaystyle 12} and 2{\displaystyle 2} below it. A prime factor is a number that is only evenly divisible by 1 and itself. For example, 7 is a prime number, because the only numbers that evenly divide into 7 are 1 and 7. Circle any prime factors so that you can keep track of them. For example, 2 is a prime number, so you would circle the 2{\displaystyle 2} on your factor tree. Keep drawing branches down from the non-prime factors until all of your factors are prime. Circle the prime numbers to keep track of them. For example, 12 can be factored into 6{\displaystyle 6} and 2{\displaystyle 2}. Since 2{\displaystyle 2} is a prime number, you would circle it. Next, 6{\displaystyle 6} can be factored into 3{\displaystyle 3} and 2{\displaystyle 2}. Since 3{\displaystyle 3} and 2{\displaystyle 2} are prime numbers, you would circle them. To do this, look for multiples of each prime factor in your factor tree. The number of times the factor appears equals the exponent of the factor in your exponential expression. For example, the prime factor 2{\displaystyle 2} appears three times in your factor tree, so the exponential expression is 23{\displaystyle 2^{3}}. The prime factor 3{\displaystyle 3} appears 1 time in your factor tree, so the exponential expression is 31{\displaystyle 3^{1}}. The original number you are working with is equal to the product of the exponential expressions. For example 24=23×31{\displaystyle 24=2^{3}\times 3^{1}}.
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One-sentence summary -- Write the integer at the top of the page. Find two numbers you can multiply together to get the number, not including 1. Look for prime factors. Continue to factor non-prime numbers. Write an exponential expression for each prime factor. Write the equation for the prime factorization of the number.

Problem: Article: Whether a green card is available is determined by 1) the date the labor certification was filed (known as the “Priority Date”); 2) the occupation’s “Preference Category”; and 3) the foreign national’s country of nationality. If the priority date is current for the foreign national’s preference category and country of nationality (marked by a “c”), or the priority date is after the date listed on the visa bulletin, the foreign national may apply for a green card.  A job that requires a Master’s degree or a Bachelor’s degree plus five years of experience will place the foreign national in the EB-2 preference category. All other jobs with lesser requirements will place the foreign national in the EB-3 preference category. The DOS visa bulletin is found here and is updated each month. Additionally, submit these documents or pass these requirement for continued eligibility:  Apply for a work authorization and advance parole document.  Having Form I-485 pending allows the foreign national to file Form I-765 and Form I-131, respectively. Obtain a medical exam by a civil surgeon approved by USCIS.  A list of civil surgeons can be found here. Include a check for the government filing fee of $1,070 Include a copy of your passport, visa, I-94 card, and any USCIS approval notices.  Also include a copy of your birth certificate. You may apply for a green card for your spouse and children under age 21.  To do so, file a form each for your spouse and children under age 21 with their supporting documents.  Include a copy of your marriage certificate. You will be allowed to enter the US with that visa and then will be mailed your green card a few weeks later.  Send original documents to the National Visa Center.  A list of required documents will be mailed to the applicant with instructions. File Form DS-260 online.  This form and its instructions can be accessed here.
Summary:
Determine if there is a green card available by checking the DOS visa bulletin. If the foreign national is present in the United States in valid immigration status, file for an “Adjustment of Status” with USCIS via Form I-485. If the foreign national is not present in the United States, attend an appointment at a US Embassy or Consulate abroad and obtain an immigrant visa.