ABSTRACT
In order to eliminate the antigen, 168 patients with metal dust allergy made a complete change of occupation, The number of those who were rehabilitated after change of occupation was in inverse proportion to the duration of exposure to the antigen. Subjects with persistent bronchial asthma showed an increase in the complaints which corresponded to the antigen exposure. So as to be able to detect secondary developments deriving from the allergic changes in the mucous membrane, a few parameters were examined after the change of occupation for their relationship to the duration of exposure. Such relationships were found for secondary inflammatory processes in the airways (detection of pathogenic organisms in the sputum, concomitant sinusitis and pleural residues from inflammatory processes). The duration of exposure to the antigen also affects the frequency of persistently increasing bronchospastic irritability after change of occupation.
Subject(s)
Asthma/rehabilitation , Occupational Diseases/rehabilitation , Asthma/complications , Asthma/physiopathology , Bronchitis/etiology , Bronchitis/physiopathology , Bronchitis/rehabilitation , Flour , Follow-Up Studies , Humans , Occupations , Pleural Diseases/etiology , Prognosis , Rhinitis/etiology , Time FactorsABSTRACT
Oil shale was subjected to bioleaching by cultures of thiobacilli. From X-ray, electron microprobe, and thin-section petrographic analysis, the shale matrix was found to contain tightly bonded carbonate minerals. When subjected to the bioproduced acids, these carbonate minerals were removed successively from the shale matrix. This process created pits and cavities which were gradually enlarged as indicated by scanning electron micrographs of samples subjected to leaching for varying lengths of time. At the end of 14 days, essentially all available carbonates had been depleted from the solid matrix. The effected increase in porosity and permeability of the oil shale then enhanced the exposure of fuel precursors, thus facilitating their production and conversion.
Subject(s)
Farmer's Lung/diagnosis , Adult , Diagnosis, Differential , Environmental Exposure , Humans , Male , Middle AgedSubject(s)
Farmer's Lung/diagnosis , Adult , Asthma/diagnosis , Chronic Disease , Dust , Farmer's Lung/complications , Germany, West , Humans , Male , Middle Aged , Pulmonary Emphysema/etiology , Rural Health , Time FactorsSubject(s)
Farmer's Lung/diagnosis , Actinomyces , Acute Disease , Adult , Agriculture , Chronic Disease , Diagnosis, Differential , Farmer's Lung/complications , Farmer's Lung/diagnostic imaging , Farmer's Lung/epidemiology , Female , Germany, West , Humans , Lung Diseases/diagnosis , Precipitin Tests , Pulmonary Heart Disease/etiology , Radiography , Respiratory Insufficiency/etiology , Respiratory Tract Diseases/diagnosis , Sarcoidosis/diagnosis , WorkSubject(s)
Endometrium , Menopause , Uterine Diseases/complications , Uterine Hemorrhage , Age Factors , Angina Pectoris/complications , Arteriosclerosis/complications , Atrophy/complications , Body Weight , Diabetes Complications , Endometrium/blood supply , Endometrium/pathology , Female , Humans , Hypertension/complications , Middle Aged , Myocardial Infarction/complications , Organ Size , Ovarian Cysts/complications , Parity , Uterine Diseases/etiology , Uterine Diseases/pathology , Uterine Prolapse/complications , Uterus/pathology , Vascular Diseases/complications , Veins/pathologyABSTRACT
Compound 4-n-butyl-1,2,4-triazole was demonstrated as an enduring and selective systemic fungicide for the control of wheat leaf rust by foliar and soil applications. Among several species of rust fungi treated, only wheat leaf rust (Puccinia recondita Rob.) was controlled. Wheat stem rust, for example, was unaffected by either soil or foliar applications.
