Medicine and Health Sciences Commons^™

31P Nmr Study Of Erythrocytes From A Patient With Hereditary Pyrimidine-5'-Nucleotidase Deficiency, M. S. Swanson, C. R. Angle, S. J. Stohs, S. T. Wu, J. M. Salhany, R. S. Elliot, R. S. Markin

Public Health Resources

The composition of phosphate metabolites and the intracellular pH in erythrocytes from a patient with hereditary pyrimidine-5'-nucleotidase deficiency were examined using ³¹P NMR spectroscopy. Several resonances were identified in spectra from intact cells and from extracts. The 2,3-bisphosphoglycerate line intensities were normal but the NTP resonances were about twice normal due to the presence of millimolar quantities of pyrimidine phosphates. Several intense resonances were also observed in the diphosphodiester region of the spectrum. One compound contributing to these lines has been identified as cytidine diphosphocholine. The resonances of NTPs were in a position indicating that the additional triphosphates were …

Microbiological Water Quality Of Impoundments: A Literature Review, G. Allen Burton Jr.

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Assessing the microbiological water quality of impoundments and the potential for waterborne disease outbreaks is a difficult task when using traditional sampling programs. Problems associated with using fecal coliform bacteria as indicators of human pathogen presence complicates assessments of future water quality in preimpoundment areas. Reliable determination of future and present microbiological water quality requires knowledge of how the chemical, physical, and biological characteristics of the watershed and impoundment interrelate to influence microbial indicator and pathogen densities. Accurate estimates of microbial indicator and pathogen densities, obtainable by using the enumeration methods and their modifications suggested in this report, will allow …

Surveillance Of Legal Abortions In The United States, 1970, Judith Bourne, James Kahn, S. Beach Conger, Carl Tyler Jr.

Public Health Resources

In 1969, a series of epidemiologic studies for abortion in the United States was begun at the Center for Disease Control (CDC) in Atlanta, Georgia. Unwanted pregnancy is one of the most prevalent and potent public health problems in this and many other countries, and in almost all societies abortion is an inevitable concomitant of unwanted pregnancies.

In 1970 we concentrated primarily on three aspects of the rapidly changing phenomenon of abortion in the United States, attempting first to ascertain how many legal abortions are performed and where they are performed; second to describe the population of women who obtain …

Purification And Sanitary Control Of Water (Potable And Waste), Paul W. Kabler

Public Health Resources

Although most of the streams draining inhabited regions are contaminated with human or animal feces, water-borne disease today in the United States is relatively uncommon. Pathogenic enteric microorganisms probably do not multiply in raw water sources under normal conditions. They usually disappear in a relatively short time, with the rates depending on variations in environmental conditions. Urban water supplies have played a diminishing role in the transmission of intestinal disease because of improvements in the detection and enumeration of pollution indicators, water and sewage treatment processes, and t h e sanitary control of water systems.

The Ecology Of Mosquito Borne Viruses, Carl M. Eklund

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The ecology of a mosquito borne virus involves a consideration of the growth of the virus within the vertebrate and arthropod hosts, the reaction of these hosts to the presence of the virus, and the vertebrate-arthropod associations which are necessary for the dissemination and maintenance of the virus. Little is known of the physiological properties of a particular host and virus which permit multiplication of the virus. In this review stress will be laid u pon studies which attempt to discover the mechanisms in nature which maintain these viruses. The first section will relate to the geographical distribution and time …

Science., W. M. James

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Census of Hallucinations

May I ask for the publicity of your pages to aid me in procuring co-operation in a scientific investigation for which I am responsible? I refer to the "Census of Hallucinations," which was begun several years ago by the Society for Psychical Research, and of which the International Congress of Experimental Psychology at Paris, last summer, assumed the future responsibility, naming a committee in each country to carry on the work.

The object of the inquiry is twofold: lst, to get a mass of facts about hallucinations which may serve as a basis for a scientific study …