The esophagogastric junction

Article Abstract:

Gastroesophageal reflux disease is now known to be caused by a temporary relaxation of the sphincters at the junction between the esophagus and stomach. The sphincters are made up of the muscles of the esophagus and the diaphragm. Although studies show that the pressure at the junction varies, elevated pressure is not the major cause of gastroesophageal reflux. It is not known why the sphincter relaxes inappropriately, but the presence of a hiatal hernia increases the chance that stomach acid will flow back up the esophagus. Surgery, H2-receptor antagonists and proton pump inhibitors are common treatments for this condition.

Complications and side effects, Physiological aspects, Gastroesophageal reflux, Esophagogastric junction, Hiatal hernia

---

The quirky genius who is changing our world

Article Abstract:

Kary Mullis invented the polymerase chain reaction, a way to make DNA replicate itself quickly. The procedure has advanced the fields of criminology, microbiology, medicine and evolution research. Mullis previously had a bad reputation in the science world.

Biography, Discovery and exploration, Polymerase chain reaction, Geneticists, Mullis, Kary B.

---

What's your "I.Q."?

Article Abstract:

Questions about one's aptitude for being an entrepreneur include such topics as curiosity, tenacity, individuality, tolerance for frustration and more. Score interpretation discusses the traits necessary for success.

Psychological aspects, Entrepreneurship

Similar abstracts:

• Abstracts: Youth art goes to Washington. Australian graffiti
• Abstracts: The supremely risky business of satire. Divine denim
• Abstracts: Verging on the floral. The power touch
• Abstracts: The westerlies are prevailing. Winners and Mainly Losers
• Abstracts: Big move sparks Big Words. More than a bit of a headache

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.