منابع مشابه
Hyaline protoplasmic astrocytopathy of neocortex.
Eosinophilic inclusions in the cytoplasm of protoplasmic astrocytes of the neocortex, usually in the clinical setting of epilepsy and/or psychomotor retardation, were first recognized and illustrated by Alois Alzheimer in 1910. Traditional special stains have failed to elucidate the specific nature of these inclusions. Ultrastructurally, the material was composed predominantly of highly electro...
متن کاملProtoplasmic Potentials in Halicystis
The potential difference across the protoplasm of impaled cells of two American species of Halicystis is compared. The mean value for H. Osterhoutii is 68.4 mv.; that for H. ovalis is 79.7 mv., the sea water being positive to the sap in both. The higher potential of H. ovalis is apparently due to the higher concentration of KCl (0.3 M) in its vacuolar sap. When the KCl content of H. Osterhoutii...
متن کاملProtoplasmic Theory of Life
an inaugural address delivered by him in the year 1874, as President of the Microscopical Society of Liverpool. In it he endeavours to prove that the modern views concerning the nature of life were anticipated by the late Dr. John Fletcher, of Edinburgh, in 1835, in his work entitled Rudiments of Physiology. We think, however, that his claim to be the discoverer of the Protoplasmic Theory is as...
متن کاملSome Properties of Protoplasmic Gels
The chloroplast of Spirogyra is a long, spirally coiled ribbon which may contract to form a short, nearly straight rod. This happens under natural conditions and it can also be produced by a variety of inorganic salts and by some organic substances. It also occurs when the chloroplast is freed by centrifugal force from the clear peripheral protoplasm which is in contact with the cellulose wall....
متن کاملSome Aspects of Protoplasmic Motion
In Nitella the protoplasm forms a layer about 15 microns thick surrounding a large central vacuole. The outer part of the protoplasm is a gel, the inner layer is a sol which is in continual motion travelling the entire length of the cell in opposite directions on opposite sides and thus making a complete circuit (cyclosis). If we have a cell devoid of motion and if we regard the protoplasm in a...
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ژورنال
عنوان ژورنال: American Journal of Clinical Pathology
سال: 2016
ISSN: 0002-9173,1943-7722
DOI: 10.1093/ajcp/aqw136