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Presents updates on the American College of Gastroenterology and other medical societies in the U.S. as of December 12, 1955. List of college officers elected by the association; Award given by the association to Doctor Robert S. Kaplan of Los Angeles, California; Details of the 1956 Mississippi Valley Medical Society Essay Contest.

Provides information on the Thirty-Eighth Annual Convention of the American College of Gastroenterology in October 1973 in Los Angeles, California. Details of the convention's scientific sessions from October 22 to 24; Scientific and technical exhibits at the convention.

Focuses on an abstract of a paper on diaphragmatic hiatus hernia that was read before the Eighteenth Annual Convention of the National Gastroenterological Association in Los Angeles, California from October 12 to 14, 1953. Symptoms of the disease such as dysphagia; Advantages of the transthoracic approach to the disease treatment; Comparison of the recurrence rate of the disease between transthoracic and abdominal approaches.

Presents news briefs on the American College of Gastroenterology as of September 1973. Information on the Thirty-Eighth Annual Convention of the American College of Gastroenterology in Los Angeles, California in October 1973; Details of the Annual Course in Postgraduate Gastroenterology from October 25 to 27, 1973; Technical and scientific exhibits included in the annual convention.

Presents information on applications for a fellowship in gastroenterology at the University of Southern California Medical School in Los Angeles, California.

Emphasizes the need for members and guests of the 1959 Convention of the American College of Gastroenterology in Los Angeles, California to make reservations. Required reservation details; Notification of the office concerning the plans following the Convention; Benefits of making reservations to the Convention committees.

Discusses the study "Peritoneoscopy As a Diagnostic Adjunct in Gastroenterology," by Robert B. Hope, presented before the Course in Postgraduate Gastroenterology of the National Gastroenterological Association in Los Angeles, California on October 15-17, 1953. Information on different liver lesions that have been diagnosed by peritoneoscopy; Symptoms of metastatic carcinoma of the liver; Significance of peritoneoscopy in the field of gastroenterology.

Discusses the study "Gastric Cancer: With a Consideration of Total Gastrectomy," by Jack Matthews Farris, presented before the Course in Postgraduate Gastroenterology of the National Gastroenterological Association in Los Angeles, California on October 15-17, 1953. Problems encountered by patients with gastric ulcers; Factors to consider in performing total gastrectomy on patients; Mortality rate of patients who have undergone total gastrectomy.

Discusses the study "Control of Stomach Pain," by Donald C. Balfour Jr., presented before the Course in Postgraduate Gastroenterology of the National Gastroenterological Association in Los Angeles, California on October 15-17, 1953. Types of pain that may arise from the upper gastrointestinal tract; Pathways of pain from the upper gastrointestinal tract; Suggested foods that should be eaten by a patient to control pain.

Presents a panel discussion on developments in cancer of the gastrointestinal tract presented before the 18th Annual Convention of the National Gastroenterological Association in Los Angeles, California from October 12 to 14, 1953. Use of an x-ray examination of a patient suspected of having cancer of the esophagus; Value of gastroscopic examination in diagnosing cancer of the stomach; Surgery to lesions which are distributed in different areas of the colon.

Focuses on a research on antigen therapy in chronic idiopathic diarrhea read before the Eighteenth Annual Convention of the National Gastroenterological Association in Los Angeles, California from October 12 to 14, 2005. Control of antigen dosage by a skin reaction; Method of antigen administration; Types of antigens that are effective in the disease therapy.

Focuses on a clinical study of small bowel tumors presented before the Course in Postgraduate Gastroenterology of the National Gastroenterological Association in Los Angeles, California from October 15 to 17, 1953. Number of small intestinal tumors that were diagnosed at the Los Angeles County Hospital from 1936 to 1952; Types of benign bowel tumors among the patients such as leiomyomas; Symptoms of malignant tumors, including anorexia.

Highlights a statistical review of several case records with a diagnosis of cancer of the pancreas that occurred at the Los Angeles County General Hospital from 1942 to 1947 and presented before the Course in Postgraduate Gastroenterology Association in California from October 15 to 17, 1953. Incidence of nondiabetic diseases of the pancreas; Rate of the occurrence of several malignancy symptoms among various patients; Location of the tumor.

Presents information on the Thirty-Second Annual Convention of the American College of Gastroenterology from October 28 to November 7, 1967 at the Biltmore in Los Angeles, California. Schedule of activities; Exhibitions; Panel discussion.

Highlights a panel discussion on pancreatic disease presented before the Course in Postgraduate Gastroenterology of the American College of Gastroenterology in Los Angeles, California in September 1959. Presentation of an illustration of the biliary and pancreatic duct systems; Enzymes present in the pancreatic juices; Laboratory diagnosis of pancreatitis.

Redistribution relative to metropolitan growth of Negro, other non- white and Spanish name populations is examined in Los Angeles County from 1940 to 1960 for a comparable grid of subareas. The subareas are defined relative to their maturity at different time points in order to partially control for population redistribution effects of neighborhood life histories, the spread of older subareas, and the persistence of neighborhood patterns. Shifts in ethnic concentration are shown for both older and newer subareas. Concurrent changes in neighborhood social structures and ethnic populations are described. Findings are categorized under three themes: First, ethnic population increments and redistribution were generally restricted to expanding older subareas. Ethnic populations did not spatially expand at a rate equal to the spread of the metropolis or of older subareas. Second, segregation is greater in both older and newer neighbor- hoods for Negroes than for other ethnic populations. Negroes experienced the largest proportional increments in both older and newer subareas, as well as the greatest stability in subarea occupancy. Finally, the spatial separation of ethnic populations impedes assimilation in that unique pat- terns of neighborhood structure come to characterize different ethnic populations, and changes in ethnic composition are reflected in changes in neighborhood social structures. [ABSTRACT FROM AUTHOR]