Zeune's law 맹인의 수는 적도에 가까운 열대지방에서 증가한다.
zidovudin
| sperm crystal | A crystal of spermin phosphate found in the semen; possibly identical to Bottcher's crystal's. (05 Mar 2000) |
|---|---|
| negative crystal | <microscopy> A uniaxial crystal is optically negative if epsilon is less than omega A biaxial crystal is said to be optically negative if gamma minus beta is less than beta is less than beta minus alpha. Otherwise the crystal is positive. (05 Aug 1998) |
| twin crystal | Two crystal's that have grown together along a common face. (05 Mar 2000) |
| knife-rest crystal | A crystal of ammoniomagnesium phosphate found in alkaline urine. (05 Mar 2000) |
| carcinoma, ehrlich tumour | A transplantable, poorly differentiated malignant tumour which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms. (12 Dec 1998) |
| Paul Ehrlich | <person> A brilliant scientist and student, born in Silesia, Germany, who at the age of 23 published his first scientific paper which was on the discovery of the mast cells - a name coined by him (1887). While a resident in medicine at Charite Hospital in Berlin he utilised the newly discovered aniline dyes to develop some of the basic methods of histology. Among his contributions are: The preparation and staining of blood smears, he demonstrated granules in leukocytes, described the neutrophil, basophil, eosinophil, myelocyte, and mononuclear cells (white blood cells), he demonstrated normoblasts, megaloblasts and microblasts of the erythrocytic (red blood cell) series. In 1887, he differentiated lymphocytic leukaemia from "bone marrow leukaemia" (myeloid) on blood smear, in 1888, he described aplastic anaemia, in 1882 the diazo reaction of typhoid urines, in 1882, less than six weeks after Koch described the Tuberculus bacillus, Ehrlich had described its acid-fastness and devised the fuchsin stain to demonstrate the pink rod on a blue background. Ehrlich fell ill with tuberculosis and went to Egypt for 3 years for rest and cure. Following his return, he entered the field of immunology. at Von Behring's request, he developed means of standardising antitoxin dosage (immunization units). at the age of 42, he became director of the "Royal Institute for Standardisation and Investigation of Antitoxic Sera." Here he devised his famous "side-chain" theory of immunisation. It has since been replaced. Paul Ehrlich reinvestigated Bordet's alexin and heat-stable substance and named them "complement" and "immune body". Ehrlich coined the terms and created a new science of chemotherapy. In 1910 he discovered Salvarsan or 606, a therapeutic antiluetic. For his silver bullet (Salvarsan) in 1908, he received the Nobel Prize. This scientist was greatly concerned over the problem of drug fastness which still remains a problem. He died August 20, 1915. Lived: 1854-1915. (18 Nov 1997) |
| Heinz-Ehrlich body | A round oxyphil body found in the red blood cell in case of haemocytolysis due to a specific blood poison. Synonym: Heinz-Ehrlich body. (05 Mar 2000) |
| Ehrlich | Paul, German bacteriologist, immunologist, and Nobel laureate, 1854-1915. See: Ehrlichia, Ehrlich's anaemia, Ehrlich's inner body, Ehrlich's phenomenon, Ehrlich's postulate, Ehrlich's diazo reagent, Ehrlich's theory, Ehrlich-Turk line. See entries under stain; reaction. (05 Mar 2000) |
| Ehrlich, Paul | <person> A brilliant scientist and student, born in Silesia, Germany, who at the age of 23 published his first scientific paper which was on the discovery of the mast cells - a name coined by him (1887). While a resident in medicine at Charite Hospital in Berlin he utilised the newly discovered aniline dyes to develop some of the basic methods of histology. Among his contributions are: The preparation and staining of blood smears, he demonstrated granules in leukocytes, described the neutrophil, basophil, eosinophil, myelocyte, and mononuclear cells (white blood cells), he demonstrated normoblasts, megaloblasts and microblasts of the erythrocytic (red blood cell) series. In 1887, he differentiated lymphocytic leukaemia from "bone marrow leukaemia" (myeloid) on blood smear, in 1888, he described aplastic anaemia, in 1882 the diazo reaction of typhoid urines, in 1882, less than six weeks after Koch described the Tuberculus bacillus, Ehrlich had described its acid-fastness and devised the fuchsin stain to demonstrate the pink rod on a blue background. Ehrlich fell ill with tuberculosis and went to Egypt for 3 years for rest and cure. Following his return, he entered the field of immunology. at Von Behring's request, he developed means of standardising antitoxin dosage (immunization units). at the age of 42, he became director of the "Royal Institute for Standardisation and Investigation of Antitoxic Sera." Here he devised his famous "side-chain" theory of immunisation. It has since been replaced. Paul Ehrlich reinvestigated Bordet's alexin and heat-stable substance and named them "complement" and "immune body". Ehrlich coined the terms and created a new science of chemotherapy. In 1910 he discovered Salvarsan or 606, a therapeutic antiluetic. For his silver bullet (Salvarsan) in 1908, he received the Nobel Prize. This scientist was greatly concerned over the problem of drug fastness which still remains a problem. He died August 20, 1915. Lived: 1854-1915. (18 Nov 1997) |
| Ehrlich reaction | The reaction of the indole derivatives with aromatic aldehydes; e.g., tryptophan and p-dimethylaminobenzaldehyde in H2SO4 give a red-violet colour useful in assaying proteins for tryptophan content. Synonym: Ehrlich reaction. (05 Mar 2000) |
| Ehrlich's anaemia | <haematology> This form of anaemia occurs when the bone marrow ceases sufficient red and white blood cell production. It may be induced by exposures to high levels of toxic chemicals, radiation and certain drugs. It is generally unresponsive to specific therapy, often accompanied by granulocytopenia and thrombocytopenia, in which the bone marrow may not necessarily be hypocellular or hypoplastic but fails to produce adequate numbers of peripheral blood elements. The term actually is all inclusive and most probably encompasses several clinical syndromes. Origin: Gr. Haima = blood (29 Sep 1997) |
| Ehrlich's benzaldehyde reaction | A test for urobilinogen in the urine, by dissolving 2 g of dimethyl-p-aminobenzaldehyde in 100 ml of 5% hydrochloric acid and adding this reagent to urine; a red colour in the cold indicates the presence of an excessive amount of urobilinogen. (05 Mar 2000) |
| Ehrlich's diazo reaction | The reaction of diazotised sulfanilic acid with bilirubin to form azobilirubin, which forms the basis of quantitating the amount of bilirubin in biological fluids. See: van den Bergh's test. Synonym: Ehrlich's diazo reaction. (05 Mar 2000) |
| Ehrlich's diazo reagent | Two solutions, one of sodium nitrite, the other of acidified sulfanilic acid, used in bringing about diazotization. Synonym: Ehrlich's diazo reagent. (05 Mar 2000) |
| Ehrlich's inner body | A round oxyphil body found in the red blood cell in case of haemocytolysis due to a specific blood poison. Synonym: Heinz-Ehrlich body. (05 Mar 2000) |