TASK DEFINITION: Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.
PROBLEM: A heart attack can happen to anyone, woman or man, young or old. Some people are more at risk because of certain health problems, family health history, age, and habits. These are called risk factors. You can't change some risk factors, like your age, race or ethnicity, or family history. A Month Before a Heart Attack, Your Body Will Warn You With These 8 Signals! - Duration: 6:24. 7ReMix Healthy Tips TV 189,400 views A heart attack occurs when one or more of your coronary arteries become blocked. Over time, a coronary artery can narrow from the buildup of various substances, including cholesterol (atherosclerosis). This condition, known as coronary artery disease, causes most heart attacks. Although a heart attack is a frightening event, if you learn the signs of a heart attack and what steps to take, you can save a life—perhaps even your own. Many people think that heart attacks are a “man’s problem,” yet heart disease is actually the number one killer of both men and women in the United States. To diagnose a heart attack, an emergency care team will ask you about your symptoms and begin to evaluate you. The diagnosis of the heart attack is based on your symptoms and test results. The goal of treatment is to treat you quickly and limit heart muscle damage. Tests to Diagnose a Heart Attack. ECG . Symptoms of a heart attack may be immediate and intense. More often, though, symptoms start slowly and persist for hours, days or weeks before a heart attack. Unlike with sudden cardiac arrest, the heart usually does not stop beating during a heart attack. The heart attack symptoms in women can be different than men. What is cardiac arrest? About every 40 seconds, someone in the United States has a myocardial infarction (heart attack). Your heart muscle needs oxygen to survive. A heart attack occurs when the blood flow that brings oxygen to the heart muscle is severely reduced or cut off completely (View an animation of blood flow). Several studies have demonstrated that there is seasonal variation in heart attacks. They are most likely to occur in the winter, and least likely to occur in the summer. This is not just true for heart attacks, but also other cardiovascular events. Several explanations have been proposed. Heart attacks may seem like a senior citizen phenomenon, considering that about 82% of people who die of coronary heart disease are at least 65, according to the American Heart Association. But sudden heart problems can occur much earlier in life, too. Every 40 seconds, someone in the United States has a heart attack. 1. A heart attack, also called a myocardial infarction, occurs when a part of the heart muscle doesn’t receive enough blood flow. The more time that passes without treatment to restore blood flow, the greater the damage to the heart muscle. Query: how does a heart attack occur

SOLUTION: A heart attack occurs when one or more of your coronary arteries become blocked.

PROBLEM: Features of C# absent in Java. 1  C# includes more primitive types and the functionality to catch arithmetic exceptions. 2  Includes a large number of notational conveniences over Java, many of which, such as operator overloading and user-defined casts, are already familiar to the large community of C++ programmers. C# namespaces are more similar to those in C++. Unlike Java, the namespace does not specify the location of the source file. (Actually, it's not strictly necessary for a Java source file location to mirror its package directory structure). C# includes delegates, whereas Java does not. Why does C# code folding differ from C++ (self.csharp) submitted 2 years ago by SalizarMarxx This has bothered me for some time but why is the C# cold folding different than say the C++ editor. I miss being able to fold on IF/switch/while... jump to content Where C# is just different from C++. value types and reference types exist (struct is value-type, class is reference-type) value types live on the stack, reference types on the heap; references can point to null (must not be valid) code is packaged in assemblies in C#; no automatic conversion from int to bool in C#; main-function is called Main in C# C#. 1  Rapid client application development. 2  High performance Server development (StackOverflow for example) that benefits from the .NET framework. 3  Applications that require the benefits of the .NET framework in the language it was designed for. Things that i like about C and miss in C++. 1  Polymorphic algorithms by using function pointers. In C, when you are running complex algorithms - some times you can use set of function pointers. 2  Simple threads. When you create threads were pthreads - it is quite simple and manageable. When it comes to comparing C# to C++, it’s important to remember that each is a language useful in its own regard, and each has strengths over the other. When it comes to comparing C# to C++, it’s important to remember that each is a language useful in its own regard, and each has strengths over the other. The difference between C#/Java and C is too big, but the differences between C#/Java and C++ are easier to pick and the most important, other than said updates to the language, are the adoption of a pure OOP approach to programming. Of course, people will complain about C# and Java, saying that it is slower than C++, particularly when using arrays. The speed tradeoff is well worth it, and in reality, is fairly minor anyway. Let C# and Java take the wheel, and ease off the gas pedal just a bit. This code has pretty much the same effect in terms of where the objects are stored as does the above C++ code - the difference is that Myclass is syntactically treated as a reference rather then a pointer. The big difference between C++ and C# is that C# doesn't allow you to Query: how does c++ and c# differ

SOLUTION: C# is just different from C++ in: 1 Value types and reference types exist, 2 Value types live on the stack, reference types on the heap, 3 References can point to null code is packaged in assemblies in C#, 4 No automatic conversion from int to bool in C#; main-function is called Main in C#.

PROBLEM: Testing for the presence of proteins - Biuret test . Show students the available foods for testing. Ask them which ones they expect to contain protein. Demonstrate to students how to perform the test. Put a food item containing protein into a test tubes (i.e. milk or tofu). If it is not a liquid, add some water and mash it well. Also set up a control, a test tube containing a liquid that does not contain protein (i.e. water). Add about 2ml of Biuret reagent to the test tube. 1. If the food to be tested is liquid, go to 2. If the food to be tested is solid, make an extract. Grind crush or chop a small amount and put into a test tube to a depth of about 2cm. Add a similar amount of distilled water and stir with a glass rod. Allow to stand for a few minutes. 2. Draw up some of the clear liquid into a pipette and then First, prepare test solution by grinding vitamin C reagent tablet into a powder using a mortar and pestle or back of a spoon. Pour powder into dropper bottle and add 30ml (1 oz.) of distilled water. If testing more than one liquid, label each test tube with a marker. Fill each with 50 drops of blue vitamin C indicator solution. Nutrient solutions to be tested (made from foods you wish to test for sugar, starch, protein, fat, and vitamin C content). Food Test 1: Sugar test-Benedict's solution Benedict's solution is used to test for simple sugars, such as glucose. Put different food solutions in each cup, e.g. corn starch in water, flour in water, milk, and water. Using the dropper, add a drop or two of the iodine solution to each cup. Place a slice of a potato on a paper towel atop a paper plate and add a drop of the iodine solution to the potato slice. Note the color change. Place foods in separate test tubes. ‐ if the food is liquid, pour enough to just cover the bottom of the glass. ‐ If the food is solid (e.g., banana, apple, potato chips), crush a small amount and add. enough water to cover the bottom of the tube. Iodine test for starch the most followed method to analyze the presence of starch in the given food material. When iodine solution is mixed with starch it turns from brown to dark blue. As this happens with very small amounts of starch, iodine test is a sensitive one. Testing for starch. Glucose is sweet and dissolves in water while starch is not sweet and does not dissolve well in water. A further test to distinguish starch from glucose is to shine a beam of light through ‘solutions’ of each. This is also called the Tyndall Beam Effect. Dispersal only happens in starch as the large starch molecules are big enough to affect the light. This is a physical test. A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solution test. For example, if iodine is added to an peeled potato then it will turn black. You could demonstrate the effect of iodine solution on starch by adding a few drops of solution to a starch powder or starch suspension in a boiling tube. You can then discuss the fact that this colour change might be hard to see in a dark green leaf until the chlorophyll is removed. The iodine turned from a red/yellow colour to a blue-black colour. The iodine turned from a red/yellow colour in certain places to a blue-black colour, where starch is stored. The iodine turned from a red/yellow colour to a blue-black colour. Query: how do you test for starch in a food

SOLUTION:
Put different food solutions in each cup, e.g. corn starch in water, flour in water, milk, and water. Using the dropper, add a drop or two of the iodine solution to each cup. Place a slice of a potato on a paper towel atop a paper plate and add a drop of the iodine solution to the potato slice. Note the color change.

