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Biomedical subjects

L R Berger

Publications and source records attributed to L R Berger.

At least 55 records · Page 3Linked to original sources

Child health in the workplace: the Supreme Court in Hammer v. Dagenhart (1918).

Exploitation of children in the labor force at the beginning of this century gave rise to a national campaign leading to congressional passage of the Keating-Owen Act in 1916. The act prohibited from interstate commerce goods produced in factories or mines that employed children who either were under fourteen years of age or who were under sixteen years of age and worked more than eight hours a day. Despite its popular support, the Act was declared unconstitutional by the Supreme Court in Hammer v. Dagenhart (1918). The Court's decision involved several major issues: interpretation of the Fifth and Fourteenth Amendments to the Constitution, freedom of contract, police power of the states, and the interstate commerce clause. Review of previous Court decisions suggests that the justices were on less than solid legal ground in reaching their decision. Examination of the historical context of the decision, however, suggests other factors that may have played a more important role than judicial precedents. The debate prompted by Hammer v. Dagenhart has much relevance to such current issues as young agricultural workers, sex discrimination in industry, and the powers of the federal government vis-a-vis states and individual citizens.

Adolescent↗

Consumer product hazards: setting priorities for research and regulatory action.

Consumer products account for 6.8 million injuries per year. The current method of prioritizing regulation of consumer products and prevention of related injuries is the Hazard Index, developed by the U.S. Consumer Product Safety Commission. This Index, however, is based on an arbitrary weighting scale and fails to include any estimate of a denominator for injuries. A new Index, the Product Injury Index, based on an objective cost-based weighting procedure, and incorporating an injury ratio is proposed and applied to existing data. The relative rankings on the two scales are compared, and the advantages of the new scale are discussed.

Accident Prevention↗

The Winnicott Squiggle Game: a vehicle for communicating with the school-aged child.

The Squiggle Game, described by pediatrician/child psychiatrist D. W. Winnicott, is a pencil-and-paper technique for eliciting children's thoughts and feelings. Unlike drawing tests such as the Goodenough Draw-A-Person Test and the Bender-Gestalt Form Copying Test, the Squiggle Game has an entirely unstructured format. This allows maximal latitude for children to share ideas and feelings. Also, participation by the physician makes the approach fun, rather than simply another test or chore for the child. The Squiggle Game has wide applicability in the general practice of pediatrics. It is ideally suited to communicating with school-aged children who are often too young to articulate perceptions and feelings spontaneously, but are too old to be engrossed in play techniques utilizing doll houses, puppets, or other toys.

Child↗

Mouthwash: a source of acute ethanol intoxication.

Treatment of a 33-month-old girl who sustained severe ethanol intoxication resulting from mouthwash ingestion prompted us to review the ingestions, compositions, and sales of these common household products. Mouthwashes contain up to 26.9% ethanol (53.8 proof), and each of the leading brands markets single containers that can supply a lethal ethanol dose to a toddler. Mouthwashes are particularly hazardous because they are thought to be innocuous, and they are widely available, attractive, and kept within easy reach of children. Parent education, and restrictions on packaging and ethanol concentration are recommended.

Accidents, Home↗

Colorimetric enzyme-linked immunosorbent assay for the identification of strains of Rhizobium in culture and in the nodules of lentils.

An indirect enzyme-linked immunosorbent assay has been developed to identify strains of Rhizobium in culture and in lentil nodules. The test can be used on cells from both fresh and frozen nodules obtained from plants grown either in a growth chamber or in the field. Test results were confirmed by immunofluorescence. The enzyme-linked immunosorbent assay technique can be used for field studies and requires less antisera than other serological techniques.

Journal Article↗

Requesting the autopsy: a pediatric perspective. Psychosocial and professional aspects of the autopsy in caring for the dying child and his family.

Many physicians find the request for autopsy to be one of the most difficult and unpleasant aspects of pediatrics. Lack of preparation, their own emotional reactions, and ambivalence about the necessity of autopsies contribute to this. This article offers an approach to the autopsy that emphasizes its importance to families and to pediatrics, and suggests a role for the physician at the time of the child's death that is both professionally and personally gratifying.

Autopsy↗

Basis of pyruvate inhibition in Thiobacillus thiooxidans.

Addition of 10(-3)m pyruvic acid to cultures of Thiobacillus thiooxidans, at pH 2.3, results in its rapid intracellular accumulation and in the cessation of sulfur oxidation, CO(2) fixation, and oxygen consumption; at pH 7.0, pyruvate neither inhibits oxygen uptake nor accumulates appreciably intracellularly. Pyruvate does not affect CO(2) fixation in cell-free extracts. The data suggest that the cells of T. thiooxidans are passively permeable to pyruvic acid at low pH. Thus entry of pyruvic acid causes accumulation of pyruvate with a concomitant decrease in intracellular pH.

Carbon Dioxide↗