Write an article based on this "Check the determinant of the matrix. Transpose the original matrix. Find the determinant of each of the 2x2 minor matrices. Create the matrix of cofactors. Divide each term of the adjugate matrix by the determinant."
article: You need to calculate the determinant of the matrix as an initial step. If the determinant is 0, then your work is finished, because the matrix has no inverse. The determinant of matrix M can be represented symbolically as det(M).  For a 3x3 matrix, find the determinant by first To review finding the determinant of a matrix, see Find the Determinant of a 3X3 Matrix. Transposing means reflecting the matrix about the main diagonal, or equivalently, swapping the (i,j)th element and the (j,i)th. When you transpose the terms of the matrix, you should see that the main diagonal (from upper left to lower right) is unchanged. Another way to think of transposing is that you rewrite the first row as the first column, the middle row becomes the middle column, and the third row becomes the third column. Notice the colored elements in the diagram above and see where the numbers have changed position. Every item of the newly transposed 3x3 matrix is associated with a corresponding 2x2 “minor” matrix. To find the right minor matrix for each term, first highlight the row and column of the term you begin with. This should include five terms of the matrix. The remaining four terms make up the minor matrix.  In the example shown above, if you want the minor matrix of the term in the second row, first column, you highlight the five terms that are in the second row and the first column. The remaining four terms are the corresponding minor matrix. Find the determinant of each minor matrix by cross-multiplying the diagonals and subtracting, as shown. For more on minor matrices and their uses, see Understand the Basics of Matrices. Place the results of the previous step into a new matrix of cofactors by aligning each minor matrix determinant with the corresponding position in the original matrix. Thus, the determinant that you calculated from item (1,1) of the original matrix goes in position (1,1). You must then reverse the sign of alternating terms of this new matrix, following the “checkerboard” pattern shown.  When assigning signs, the first element of the first row keeps its original sign. The second element is reversed. The third element keeps its original sign. Continue on with the rest of the matrix in this fashion. Note that the (+) or (-) signs in the checkerboard diagram do not suggest that the final term should be positive or negative. They are indicators of keeping (+) or reversing (-) whatever sign the number originally had. For a review of cofactors, see Understand the Basics of Matrices. The final result of this step is called the adjugate matrix of the original. This is sometimes referred to as the adjoint matrix. The adjugate matrix is noted as Adj(M). Recall the determinant of M that you calculated in the first step (to check that the inverse was possible). You now divide every term of the matrix by that value. Place the result of each calculation into the spot of the original term. The result is the inverse of the original matrix.  For the sample matrix shown in the diagram, the determinant is 1. Therefore, dividing every term of the adjugate matrix results in the adjugate matrix itself. (You won’t always be so lucky.) Instead of dividing, some sources represent this step as multiplying each term of M by 1/det(M). Mathematically, these are equivalent.

Write an article based on this "Take responsibility for your thoughts and actions. List negative things in your life and begin to change them. Let go of expectations. Forgive yourself and others. Limit or remove negative people from your life. Respond to change. Keep moving forward."
article: You alone are in control your life and many of the negative situations and negative thoughts you harbor are influenced directly by you. By taking responsibility for your actions, you can begin to remove negativity in your life and create positivity.  Negative thoughts cultivate negative actions. If you decide to have a positive attitude, you’ll cultivate positive changes.  For example, if you are passed over for a promotion at work, it is not because your boss doesn’t like you and probably related to your work performance. Instead of blaming your boss, talk to him about how you can improve at your job and actively make these changes. Acknowledging what is negative in your life will allow you to see what you can control and change. Burn the list to symbolize letting go of negativity.  On a piece of paper, list anything in your life that you consider negative. Read the list and check off what you can change. For example, you can change negative relationships with others by removing them from your life or you can change bad finances by taking steps to save money. Once you’ve thought about how to change the negative influences in your life, burn the paper to symbolize letting go and write a new list with positive things in your life. Negativity often begins with expectations of yourself or others. Letting go of unrealistic or negative expectations will not only help you change your attitude, but will also create a positive environment.  Accept that nothing is perfect. Imperfection adds character and letting go of any expectations of perfection will help you focus on the positive in any person or situation. Whenever something bad happens, forget it as much as possible and then actively imagine things you want to happen. Likewise, if a person says something negative, consider it briefly and then let it go. Dwelling on negativity will only make you feel negative. Holding grudges and dwelling on your imperfections will only emphasize a negative attitude. Being able to forgive and let go will allow you to focus on the positive in yourself and others. The act of forgiveness will remove negative attitudes and create space for positive attitudes. But it will also decrease stress and increase peace and calm in your life. The people with whom we surround ourselves have a significant impact on our attitudes. Limiting or removing negative people from your life will start helping you change your attitude. If you can’t remove a person from your life entirely, or you don’t want to hurt him, you can limit your exposure to him. You can also counteract his negative attitudes and viewpoints by pointing out the positive in what he says or does. This way, you don’t get drawn down his negative path. Negative emotions often accompany change and the best way to handle change is to respond and not react to it. Make the decision to respond positively in every situation and you’ll be able to keep negativity at bay.  You can’t control all situations or people, but you can choose how you’ll respond to them. Meeting a negative situation or person with positivity will keep your attitude positive and may also result in a positive resolution to anything.  For example, if someone sends you a nasty email, don’t react to it immediately. Draft a response and wait 24 hours to send it. Revisit the email the next day and you will likely tone down your response, which can keep a situation from escalating. If something bad happens, such as losing your job, thank your employer for the opportunity and say “this is a change to find something better that I truly love.” You’ll occasionally have negative thoughts, which is normal and acceptable, but learn not to dwell on them. By always moving towards the positive, you will be able to change your negative attitude.

Write an article based on this "Bring a list of your current medications to your doctor. Have your doctor measure your heart rate sitting and standing. Have your blood pressure measured as well. Know that the heart rate criteria are different for children and adolescents. Receive a "tilt table test. Talk to your doctor about other tests. Be aware of the implications that POTS can have on your quality of life."
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As you prepare for your visit with your physician, it is important to have a list of all your current medications on hand, including the names of the medications, the doses, and the reason you are taking each one. It is also important to have a list of your past medical history, including any surgeries or hospitalizations from your past, as well as any ongoing health concerns that you have suffered from. This information will help your doctor to understand your whole health history better, so that he can evaluate your risk of POTS and move forward with diagnostic testing. POTS is a form of "autonomic dysregulation" (a nervous system disorder) in which your heart rate spikes upon standing (among other symptoms). In order to diagnose POTS, your doctor will need to measure your heart rate when you are sitting at rest. You will then stand and, after one or two minutes, your doctor will measure your heart rate again. If your heart rate increases by 30 BPM (beats per minute) or more when you stand, this means that you have POTS. After your doctor measures your heart rate and its variance when you are sitting versus standing, she will also want to measure your blood pressure. The reason for this is to rule out a condition called "orthostatic hypotension" (this is when your blood pressure drops significantly when you stand, leading to a compensatory elevated heart rate). Because your doctor does not want to diagnose you with POTS if you actually have orthostatic hypotension (that is, if your blood pressure is actually more of a problem than your heart rate), she will need to measure your blood pressure while sitting, then again after you stand up.  If you have POTS and not orthostatic hypotension, then your blood pressure should not drop significantly when you stand up versus when you are sitting. Alternatively, if your resting heart rate is above 120 BPM when you stand, this is also in itself diagnostic of POTS. Children and adolescents have naturally faster heart rates than adults; therefore, their heart rate must increase by at least 40 BPM (beats per minute) when they make the transition from sitting to standing, in order to be diagnosed with POTS. " Your doctor can diagnose you with POTS by simply measuring your heart rate sitting and standing; alternatively, he or she may perform what is called the "tilt table test." This is a much lengthier and more detailed exam. In total, it takes between 30-40 minutes to do the simple version, and up to 90 minutes to do the complex version.  The tilt table test is where you lie on a table that changes positions at set time intervals.  As this occurs, you are attached to machines such as an ECG and blood pressure cuff to continuously monitor your vital signs, including heart rate and rhythm, and blood pressure.  Your doctor can evaluate the series of results and use this to diagnose POTS or other heart-related conditions. There are many other tests that can be used to aid in the diagnosis of POTS. Your doctor may suggest a catecholamine test, a cold pressor test, EMG (electromyographic) testing, and sweat tests, among other things. POTS is a heterogeneous disorder, meaning that it can manifest in a variety of ways and have different underlying causes. As a result, the best set of diagnostic tests to confirm the details of your POTS diagnosis will depend upon your doctor's assessment of your particular case. Approximately 25% of people diagnosed with POTS have impaired quality of life similar to someone who is officially categorized as disabled. This includes not being able to work, as well as possible difficulty with day-to-day tasks such as bathing, eating, walking, or standing; however, while some people with POTS suffer from a reduced quality of life, others are able to live normally and you might not know they have a medical condition unless they told you.  The prognosis for POTS is highly variable from case to case. For POTS where the onset follows a viral infection (termed a "post-viral episode"), approximately 50% of patients recover in two to five years time.  If you have been diagnosed with POTS, your doctor can provide you with information that is specific to you in terms of prognosis, as well as working with you to develop a personalized treatment plan. Your prognosis will depend upon the subtype of POTS that you have, your overall health history, the underlying cause of your disorder, and the constellation of symptoms (as well as the symptom severity) that you are experiencing. Non-pharmacological measures for the treatment of POTS include eliminating aggravating factors, addressing dehydration, and and increasing activity. As far as medication goes, there have been no-long term studies on the efficacy of medications to treat POTS and all medication is used off label.