If a person's blood pressure is very low, the heart will be unable to pump blood and oxygen to important parts of the body. Every part of the body needs blood and oxygen to live. Without blood and oxygen, important parts of the body, like the heart and brain, can be damaged.
If a person's blood pressure is low enough that they are feeling dizzy, they should lay down on the ground. Putting their feet up, or bending their knees, is also helpful. This makes it easier for blood and oxygen to get to the brain (because the blood does not have to work against gravity to get up to the brain, like it would if the person were standing). Lying down will also make sure that the person does not hurt themselves by falling if they faint.
Doctors can treat hypotension by treating whatever is causing the low blood pressure. Sometimes, low blood pressure is caused by dehydration. This can be treated by having the patient eat more salt, drink more fluids, or (in serious cases) get fluids through a needle placed into a vein.
If low blood pressure is caused by medicines, doctors can change those medications to others that do not lower blood pressure as much.
There are also medications that increase blood pressure. They work by making it harder for blood vessels to relax. (When blood vessels relax, blood pressure goes down. If the blood vessels cannot relax as easily, blood pressure goes up.)
Race condition
A Race condition (also called race hazard) is a problem with the design of a system. With a race condition, the result of a calculation or the behaviour of the system as a whole is dependent on how long a certain calculation takes, or when it is started. Race conditions occur in logic circuits and computer software, especially with multi-threaded or distributed systems.
It is often difficult to explain what a race condition is, but the metaphor of a horse race can be used as an explanation.
A computer program is like a horse race. The computer program does several things at the same time, similarly to how several horses run at the same time in a horse race. Each horse represents what is usually called a "thread of execution". That way, one such thread may handle network communication, another one may be responsible for redrawing the user interface. In the case of a race condition, the application works properly if a given horse "wins the race". For example, the application may work if horse number five wins, but it will crash if any other horse wins the race. One solution to the problem is to use synchronization. This is like several jockeys teaming up, to make sure horse number five is ahead.
On different computers, or in different situations, computers programs can run at different speeds. Sometimes, they will be faster, other times slower. This may mean that on some systems, the race condition will never show up, even though it may be easy to show it on others. Race conditions can be difficult to find. Bugs caused by race conditions are a frequent source of frustration within the profession of software development.
Mary-Louise Parker
Mary-Louise Parker (born August 2, 1964) is an American television and movie actress.
Parker was born in 1964 in Fort Jackson, South Carolina. Her mother was Swedish and her father was a judge and served in the United States Army. They lived in Thailand where she attended the International School Bangkok. Parker studied drama at the North Carolina School of the Arts. Her first job in television was a small part on the soap opera "Ryan's Hope" in 1975. In the late 1980s, she moved to New York, where she got a job measuring feet at ECCO (a shoe shop). After a few small roles, she had her first part in a Broadway play in 1990. The play was called "Prelude to a Kiss" and she played the main character called Rita. She won the Clarence Derwent Award for this play and was nominated for a Tony Award. Parker dated her co-star Timothy Hutton for a short time.
That same year, Parker was noticed by critics when she appeared in a movie called "Longtime Companion". It was one of the first movies about AIDS. After that, she acted in 1991's "Grand Canyon", which also starred Mary McDonnell, Danny Glover, Alfre Woodard and Kevin Kline. Parker's next film was "Fried Green Tomatoes", with Jessica Tandy, Mary Stuart Masterson, Kathy Bates and Cicely Tyson.
Gay &amp; Lesbian Alliance Against Defamation
The Gay & Lesbian Alliance Against Defamation (GLAAD) is an American group that works to make sure that LGBT are not made to look bad in the media, and works so that the public are more accepting of LGBT people. It was founded in 1985 in New York City after there were a lot of negative reports about LGBT people, after the beginning of the AIDS epidemic. Their policies are for the freedom to be homosexual and not be judged.
The Gay & Lesbian Alliance Against Defamation was started in 1985 in New York City. After the start of the AIDS epidemic, several newspapers, like the "New York Post" wrote reports that some people thought were homophobic and unfair. The Alliance was founded to protest against such negative coverage in the media.
Because of this, a group of people decided to band together and begin a group to change things. They were Vito Russo, Gregory Kolovakos, Darryl Rist, Allen Barnett and Jewelle Gomez. They named their group the Gay & Lesbian Alliance Against Defamation. At first they were more concerned with changing the way that stories about AIDS were reported to the public. As the group grew, they began to work with people in the entertainment industry to change the way that gay and lesbian people were made to look on films and on television.
Every year, GLAAD hosts a ceremony where s are given to people in the media and in entertainment that have represented LGBT people and issues fairly. Since 2009, there have been three ceremonies every year, one each in New York City, Los Angeles, and San Francisco.
Don Carlos
Don Carlos is an opera composed by Giuseppe Verdi. It was composed to a libretto in the French language by Camille du Locle and Joseph Méry. It was based on a famous German play called "Don Carlos, Infante of Spain" by Friedrich Schiller. Schiller’s story is based on the true story of the life of Carlos, Prince of Asturias (1545-1568) who was promised that he could marry Elisabeth of Valois, but then his father,Philip II of Spain, changed his mind and married her himself. It was part of the peace treaty ending the Italian War of 1551-1559 between the Houses of Habsburg and Valois.
The opera was first performed at the Théâtre Impérial de l’Opéra in Paris on 11 March 1867. It has five acts.
Don Carlos was written for performance in Paris. This has made a problem for the reputation of the opera, because it was tradition in France to write very long operas. They always included a lot of ballet music as well as the singing. Verdi’s opera was in five acts, and when it was performed in other countries it was too long for people’s tastes, so many cuts were made, including, at first, the whole of Act I. This is a great pity, because a lot of the music in Act One is very important, with tunes which also come later in the opera. Since the beginning of the 20th century most of the music of Act I is usually performed. There have been many different versions performed, with different parts of the opera cut. When the opera is sung in Italian it is called "Don Carlo".
The story takes place at a time when Spain is just coming to the end of a war with France. It has been agreed between the two countries that Don Carlos, heir to the Spanish throne, will marry Elisabeth, the daughter of the King of France.