Grace Ethel Cecile Rosalie Allen was an American vaudevillian and comedian who became internationally famous as the zany partner and comic foil of husband George Burns, her straight man appearing with her on radio and film as the duo Burns and Allen. For her contributions to the television industry, Gracie Allen was honored with a star on the Hollywood Walk of Fame at 6672 Hollywood Boulevard, while she and Burns were inducted into the Television Hall of Fame in 1988. Co-star Bea Benaderet said of Allen in 1966: "She was one of the greatest actresses of our time." Allen was born in San Francisco, California, to George Allen and Margaret Theresa Allen, who were both of Irish Catholic descent. She made her first appearance on stage at age three and was given her first role on the radio by Eddie Cantor, she was educated at the Star of the Sea Convent School and during that time became a talented dancer. She soon began performing Irish folk dances with her three sisters, who were billed as "The Four Colleens".

In 1909, Allen joined Bessie, as a vaudeville performer. At a performance in 1922, Allen met the two formed a comedy act, they were married on January 1926, in Cleveland, Ohio. Allen was born with heterochromia. There is some discrepancy as to her date of birth. Depending on the source, Allen is alleged to have been born on July 26 in 1895, 1896, 1902 or 1906. All public vital records held by the City and County of San Francisco were destroyed in the earthquake and great fire of April 1906, her husband, George Burns, professed not to know how old she was, though it was he who provided the date July 26, 1902, which appears on her death record. Her crypt marker shows her year of birth as 1902. Among Allen's signature jokes was a dialogue in which Allen would claim that she was born in 1906, her foil would press her for proof or corroborating information; the most reliable information comes from the U. S. Census data collected on June 1, 1900. According to the information in the Census records for the State of California and County of San Francisco, enumeration district 38, family 217, page 11-A, Grace Allen, age 4 was enumerated with her parents, Geo. and Maggie, five siblings.

This indicates that the birthdate 26 July 1895 is correct. However, in the census taken on April 15, 1910, for San Francisco's 39th Assembly District, Enumeration District 216, Page 5A, Grace Allen is listed as being 13, suggesting a birth year of 1896, but this is not definitive and census records do vary from year to year; the Burns and Allen act began with Allen as the straight man, setting up Burns to deliver the punchlines—and get the laughs. In his book Gracie: A Love Story, Burns explained that he noticed Allen's straight lines were getting more laughs than his punchlines, so he cannily flipped the act over—he made himself the straight man and let her get the laughs. Audiences fell in love with Allen's character, who combined the traits of naivete and total innocence; the reformulated team, focusing on Allen, toured the country headlining in major vaudeville houses. Many of their famous routines were preserved in one- and two-reel short films, including Lambchops, made while the couple was still performing onstage.

Burns attributed all of the couple's early success to Allen, modestly ignoring his own brilliance as a straight man. He summed up their act in a classic quip: "All I had to do was say,'Gracie, how's your brother?' and she talked for 38 years. And sometimes I didn't have to remember to say'Gracie, how's your brother?'" In the early 1930s, like many stars of the era and Allen graduated to radio. The show was a continuation of their original "flirtation act". Burns realized that they were too old for that material and changed the show's format in the fall of 1941 into the situation comedy vehicle for which they are best remembered: a working show business married couple negotiating ordinary problems caused by Gracie's "illogical logic," with the help of neighbors Harry and Blanche Morton, their announcer, Bill Goodwin. Burns and Allen used running gags as publicity stunts. During 1932–33, they pulled off one of the most successful in the business: a year-long search for Allen's missing brother, they would make unannounced cameo appearances on other shows, asking if anyone had seen Allen's brother.

Gracie Allen's real-life brother was the only person who did not find the gag funny, he asked them to stop. In 1940, the team launched a similar stunt when Allen announced she was running for President of the United States on the Surprise Party ticket. Burns and Allen did a cross-country whistlestop campaign tour on a private train, performing their live radio show in different cities. In one of her campaign speeches, Gracie said, "I don't know much about the Lend-Lease Bill, but if we owe it we should pay it." Another typical Gracie-ism on the campaign trail went like this: "Everybody knows a woman is better than a man when it comes to i

Ethylbenzene is an organic compound with the formula C6H5CH2CH3. It is a flammable, colorless liquid with an odor similar to that of gasoline; this monocyclic aromatic hydrocarbon is important in the petrochemical industry as an intermediate in the production of styrene, the precursor to polystyrene, a common plastic material. In 2012, more than 99% of ethylbenzene produced was consumed in the production of styrene. Ethylbenzene occurs in coal tar and petroleum; the dominant application of ethylbenzene is role as an intermediate in the production of polystyrene. Catalytic dehydrogenation of ethylbenzene gives hydrogen and styrene: C6H5CH2CH3 → C6H5CH=CH2 + H2As of May 2012, greater than 99% of all the ethylbenzene produced is used for this purpose. Ethylbenzene is added to gasoline as an anti-knock agent, meaning it reduces engine knocking and increases the octane rating. Ethylbenzene is found in other manufactured products, including pesticides, cellulose acetate, synthetic rubber and inks. Used in the recovery of natural gas, ethylbenzene may be injected into the ground.

Ethylbenzene is produced in on a large scale by combining benzene and ethylene in an acid-catalyzed chemical reaction. 24,700,000 tons were produced in 1999. Ethylbenzene is produced in on a large scale by combining benzene and ethylene in an acid-catalyzed chemical reaction: C6H6 + C2H4 → C6H5CH2CH3In 2012, more than 99% of ethylbenzene was produced in this way. Thus, manufacturers of ethylbenzene are the major buyers of benzene, claiming more than half of total output. Small amounts of ethylbenzene are recovered from the mix of xylenes by superfractioning, an extension of the distillation process. In the 1980s a zeolite-based process using vapor phase alkylation offered yield. A liquid phase process was introduced using zeolite catalysts; this offers low benzene-to-ethylene ratios, reducing the size of the required equipment and lowering byproduct production. The acute toxicity of ethylbenzene is low, with an LD50 of about 4 grams per kilogram of body weight; the longer term toxicity and carcinogenicity is ambiguous.

Eye and throat sensitivity can occur. At higher level exposure, ethylbenzene can cause dizziness. Once inside the body, ethylbenzene biodegrades to 1-phenylethanol, phenylglyoxylic acid, mandelic acid, benzoic acid and hippuric acid. Ethylbenzene exposure can be determined by testing for the breakdown products in urine; as of September 2007, the United States Environmental Protection Agency determined that drinking water with a concentration of 30 parts per million for one day or 3 ppm for ten days is not expected to have any adverse effect in children. Lifetime exposure of 0.7 ppm ethylbenzene is not expected to have any adverse effect either. The U. S. Occupational Safety and Health Administration limits exposure to workers to an average 100 ppm for an 8-hour workday, a 40-hour workweek. Ethylbenzene is classified as a possible carcinogen by the International Agency for Research on Cancer however, the EPA has not determined ethylbenzene to be a carcinogen; the National Toxicology Program conducted an inhalation study in mice.

Exposure to ethylbenzene resulted in an increased incidence of kidney and testicular tumors in male rats, trends of increased kidney tumors in female rats, lung tumors in male mice, liver tumors in female mice. As with all organic compounds, ethylbenzene vapors form an explosive mixture with air; when transporting ethylbenzene, it is classified as a flammable liquid in class 3, Packing Group II. Ethylbenzene is found as a vapor in the air since it can move from water and soil. A median concentration of 0.62 parts per billion was found in urban air in 1999. A study conducted in 2012 found that in-country air the median concentration was found to be 0.01 ppb and indoors the median concentration was 1.0 ppb. It can be released into the air through the burning of coal and oil; the use of ethylbenzene in the industry contributes to ethylbenzene vapor in the air. After about three days in the air with the help of sunlight, other chemicals break down ethylbenzene into chemicals that can be found in smog.

Since it does not bind to soil it can easily move into groundwater. In surface water, it breaks down when it reacts with chemicals found in water. Ethylbenzene is not found in drinking water, however it can be found in residential drinking water wells if the wells are near waste sites, underground fuel storage tanks that are leaking, or landfills; as of 2012, according to the EU Dangerous Substances Directive, ethylbenzene is not classified as hazardous to the environment. Ethylbenzene is a constituent of tobacco smoke. Certain strains of the fungus Cladophialophora can grow on ethylbenzene; the bacterium "Aromatoleum aromaticum" EbN1 was discovered due to its ability to grow on ethylbenzene. National Toxicology Program. Toxicology and Carcinogenesis Studies of Ethylbenzene in F344/N Rats and B6C3F1 Mice. TR No. 466. U. S. Department of Health and Human Services, Public Health Service, National Institutes of Health, Bethesda, MD. 1999. National Pollutant Inventory - Ethybenzene Fact Sheet NLM Hazardous Substances Databank – Ethylbenzene EPA Chemical database Intox Chemical database Agency for Toxic Substances and Disease Registry CDC - NIOSH Pocket Guide to Chemical Hazards

Professional Hospital Guaynabo is a private general hospital in Guaynabo, Puerto Rico. It encompasses the Vascular Institute of Puerto Rico—site where the first vascular stent in Puerto Rico was placed; the institution has been treating vascular conditions in Puerto Rico since 1988. The hospital specializes in general surgery procedures, plastic surgery and vascular procedures, becoming the first hospital in Puerto Rico to specialize in blood circulation; the hospital first began as a small community hospital in the city of Manati. It moved, with an initial investment of $65 million, to the city of Guaynabo becoming a 202 licensed-beds project. Professional Hospital Guaynabo, is organized under the laws of the Commonwealth of Puerto Rico to develop health care facilities in Puerto Rico; the organization aims to place special emphasis on minimally invasive surgical procedures to elderly patients and preventive and therapeutic management of circulatory ailments. Puerto Rico has one of the highest incidences of diabetes mellitus in the world and continues to rise.

These conditions have an enormous health and psychological impact on the population, principally on the elderly segment, which reflects the highest relative and absolute growth in this decade. For the advancement of less invasive and newer procedures new technology and modern facilities must be developed. Though the municipality of Guaynabo is surrounded by a large metropolitan area, it had no hospitals within its municipal boundaries prior to Professional Hospital. For this reason, medical facilities in Guaynabo are important centers for providing health care services not only to the adjacent medical community but to sister clinics operating in San Juan, Bayamón and the city of Manatí. A medical office building is being developed by Professional Hospital in Guaynabo which will include an Imaging Center. Professional Hospital, has developed two outpatient circulation clinics, "Clínicas Especializadas en Circulación", in Guaynabo, Manatí to serve a patient population that covers a great portion of the northern part of the Puerto Rico.

Services include preventive and medical treatment procedures