RESUMEN
In Ch. plumosus and Ch. riparius there were revealed various structural hemoglobin variants including monomers, dimers, trimers, tetramers, hexamers, and octamers. The multitude of the protein organization ways seems to be based on diversity of the monomers with the approximately equal molecular weight from 12 to 16 kDa in Ch. plumosus and from 11.8 to 15.2 kDa in C. riparus. In PAGE with 8 M urea, the hemoglobins were aggregated into high molecular complexes with mol. weights about 260 and 180 kDa in Ch. plumosus and about 523 and 174 kDa in C. riparus.
Asunto(s)
Hemoglobinas/química , Multimerización de Proteína , Estructura Cuaternaria de Proteína/genética , Animales , Chironomidae , Electroforesis , Hemoglobinas/clasificación , Hemoglobinas/genética , Multimerización de Proteína/genéticaRESUMEN
The study of polytene chromosomes of Chironomus plumosus from Rybinsk reservoir, its inflows and surrounding water bodies allow to mark out two type's of population. Terminal populations--presented by karyoforms with concrete limited composition of genotype combinations and zygotic arm combinations, which adapted to specific complex of the habitat factors. The immediate exchange of genes between different terminal populations is absent (even they placed in nearness) from allochronie of life cycles and impossibility of larvae-immigrants to finish ontogenesis in unfit for they habitat conditions. Interstitial populations inhabit the biotopes, where the karyoforms of two or more terminal populations can to finish ontogenesis and to reproduce. The genetic exchange between terminal population implement through interstitial populations.
Asunto(s)
Grupos de Población Animal/genética , Chironomidae/genética , Cromosomas Politénicos/ultraestructura , Grupos de Población Animal/clasificación , Animales , Chironomidae/clasificación , Bandeo Cromosómico , Agua Dulce , Genética de Población , Cariotipificación , Larva/genética , Polimorfismo Genético , Federación de RusiaRESUMEN
The authors specified and introduced a system monitoring occupational diseases (fluor intoxication) on aluminium plant. Clinical examination of workers in groups with various risk levels proved design values to be reliable. Suggestions included main principles of risk management to decrease probability of occupational diseases in aluminium production.
Asunto(s)
Aluminio , Monitoreo del Ambiente/métodos , Metalurgia/estadística & datos numéricos , Enfermedades Profesionales/epidemiología , Enfermedades Profesionales/prevención & control , Adulto , Monitoreo Epidemiológico , Femenino , Humanos , Masculino , Medición de Riesgo , Factores de RiesgoRESUMEN
The effect of a combined administration of analgesic droperidol and neuroleptic tramadol (tramal) on the plasma coagulation and platelet aggregation was studied on awake rabbits. Both tramadol and droperidol, as well as their combination, enhance the coagulation of plasma proteins and suppress the thrombocyte deaggregation process.
Asunto(s)
Analgésicos Opioides/efectos adversos , Antipsicóticos/efectos adversos , Droperidol/efectos adversos , Hemostasis/efectos de los fármacos , Tramadol/efectos adversos , Analgésicos Opioides/administración & dosificación , Animales , Antipsicóticos/administración & dosificación , Relación Dosis-Respuesta a Droga , Droperidol/administración & dosificación , Combinación de Medicamentos , Femenino , Masculino , Conejos , Tramadol/administración & dosificaciónRESUMEN
The authors conducted complex evaluation of health risk factors for heat power stations workers--that was a result of long studies specifying measures to optimize work conditions. The calculations covered the factors' biologic doses and critical length of service for various probabilities of occupational diseases.
Asunto(s)
Exposición Profesional/efectos adversos , Centrales Eléctricas , Adulto , Áreas de Influencia de Salud , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Federación de RusiaRESUMEN
The article deals with hygienic evaluation of work conditions for open cast coal miners in Kouzbass. Based on the evaluation, the authors calculated occupational morbidity risk due to noise, local vibration, dust exposure. An occupational diseases index and hygienic criteria helped to specify general characteristics of occupational risk, measures of prophylaxis and social security for the main occupational groups of open cast coal miners in Kouzbass.