RESUMEN
Toxic properties of acetopropyl alcohol were studied. Symptoms of CNS damages predominated in toxicodynamics. A maximal single concentration is 0.2 mg/m3 (4th class of danger).
Asunto(s)
Contaminación del Aire/análisis , Propanoles , Adulto , Animales , Cobayas , Humanos , Higiene , Dosificación Letal Mediana , Concentración Máxima Admisible , Ratones , Persona de Mediana Edad , RatasRESUMEN
The rating system was used to check up students' knowledge in obstetrics at the fourth course of the therapeutic and prophylactic faculty. Comparison of the results of the rating system and the routine one evidence that introduction of the new system has essentially improved the attendance of practical studies by the students, and their mean marks were improved as well. Students' knowledge assessed by the rating system coincided with the assessment made during examinations, thus permitting the use of this system in future without resorting to traditional sessions of examinations.
Asunto(s)
Educación de Postgrado en Medicina , Evaluación Educacional , Obstetricia/educación , Estudios de Evaluación como Asunto , U.R.S.S.RESUMEN
Workers engaged in thin nitric acid manufacturing are exhibited to the combined action of both physical and chemical factors (noise, heating microclimate, nitric oxides, ammonia). Within the working hours, ECG changes and arterial blood pressure instability are displayed in operators and technicians. Influenza, acute respiratory disorders and osseo-muscular diseases present the main causes of morbidity with temporary disability. Technicians are characterized by a markedly greater morbidity rate. Ammonia and nitric oxides, as aggressive media, lead to higher rates of oral mucoid, hard dental tissues and periodontium lesions. Health-related labour conditions improvement measures are proposed.
Asunto(s)
Contaminantes Ocupacionales del Aire/efectos adversos , Nitratos/efectos adversos , Enfermedades Profesionales/inducido químicamente , Amoníaco/efectos adversos , Humanos , Higiene , Ácido Nítrico , Ocupaciones , SaneamientoRESUMEN
The study results show that significant improvement of labour conditions can be achieved due to the introduction of a new distribution pattern of technological equipment, further improvement of equipment supply of the technological process, further mechanization of production operations, rational arrangement and disposition of control desks for technological processes, utilization of possible means of protection against noise, improvement of measuring machines, rational organization of the workplace for packing of stock-produced products and application of the means of small-scale mechanization, rational distribution of the sections of packing, filling and loading.