ABSTRACT
Background@#During 2011, a study was undertaken to assess safety conditions in Serbian underground coalmines by analysis of injury data. The study covered all Serbian coalmines, identified week spots from the aspect of safety, and recommended possible courses of action. Since then, Serbia has made changes to safety and health legislation; all coalmines introduced new preventive measures, adopted international standards, and made procedures for risk management. After 10 years a new study has been performed to analyze the impact of these changes. @*Materials and methods@#In this study, the injuries that have occurred in the Serbian underground coal mines over the last 20 years were analyzed. Statistical data analysis was performed by IBM SPSS Statistics v23. The injuries that occurred in the last ten years were compared with the results of the previous study (2000–2009). The average values of injury rates for both periods were compared for each of the categories (severity, age, body part, qualification), and the results were presented as absolute difference or percentile difference. @*Results@#The results showed reduction in the number of injuries in the category of 20–30 years old workers, where the new training procedures for workers, which were set by mandatory legal regulations, certainly contributed. They also showed an increase in the number of injuries in the category of old workers, which indicates that the law did not have a positive effect on this category. @*Conclusion@#The total number of injuries is still high; therefore, it is necessary to introduce mechanization and automation in mines and have a better policy for older workers who retire later nowadays.
ABSTRACT
Objetivou-se com este estudo avaliar o processo de cicatrização de feridas de coelhos tratadas com extrato de barbatimão (S. adstringens) associado a células mononucleares autólogas da medula óssea (CMMO). Utilizaram-se 20 coelhos, distribuídos em quatro grupos: B, extrato de barbatimão; CB, CMMO com extrato de barbatimão; CS, CMMO com solução fisiológica; S, solução fisiológica. Foi avaliada a presença de crosta, hiperemia, secreção, hemorragia, reepitelização, área da ferida e tempo de cicatrização. No terceiro, sétimo, 14º e 21º dias pós-operatório, realizou-se a biópsia das feridas e avaliaram-se os indicadores dos processos de inflamação e de reparo, com destaque para o colágeno, na coloração picrosírius, bem como de proliferação celular, na coloração AgNOR. Houve maior deposição de fibras colágenas nos grupos B e CB (P=0,00003) e formação de crostas mais espessas no sétimo dia, com fibras colágenas mais organizadas no 21º dia. Conclui-se que o barbatimão estimula a produção de fibras colágenas e promove a formação de crostas mais espessas sobre a ferida na fase inicial da cicatrização e, na fase de remodelação, favorece a orientação das fibras colágenas. Além disso, a associação desse fitoterápico com CMMO não estimula a cicatrização de feridas.(AU)
This study aimed to evaluate the healing process of wounds of rabbits in response to treatment with barbatiman extract (S. adstringens) associated with autologous mononuclear bone marrow cells (BM-MNC). We used 20 rabbits, divided into four groups: B, 10% barbatiman extract with 9.48% of total tannins; CB, BM-MNC with barbatiman extract; CS, BM-MNC with NaCl 0.9% solution; S, NaCl 0.9% solution. Clinical evaluation was performed by observing the presence of crust, redness, discharge, bleeding, re-epithelialization, the wound area and healing time in days. In the third, seventh, 14th and 21st postoperative days wounds were biopsied for microscopic evaluation of inflammation and repair process indicators, especially collagen, in picrosirius staining, and cell proliferation, in AgNOR staining. There was a greater deposition of collagen fibers in groups B and CB (p=0.00003) on the seventh day and formation of thicker crusts, and more organized collagen fibers on the 21st day in these groups. In conclusion, in the initial phase of healing, barbatiman extract stimulates the production of collagen fibers and promotes the formation of more exuberant crusts on the wounds and remodeling phase favors the orientation of collagen fibers, but when combined with BMMC does not stimulate wound healing in rabbits.(AU)
Subject(s)
Animals , Rabbits , Cell- and Tissue-Based Therapy/veterinary , Collagen/analysis , Fabaceae , Wound Healing , Silver Staining/veterinaryABSTRACT
O ultra-som e um exemplo de recurso utilizado pelos fisioterapeutas para obtencao de analgesia em diversos casos de reabilitacao. Entretanto, na literatura nao ha um consenso quanto a real eficacia desse tipo de procdimento no processo reabilitativo. Nao foram encontrados relatos da utilizacao desse recursos no tratamento de pacientes cardiacos pos-operatorios. Objetivo: verificar a eficacia da ultra-sonoterapia na diminuicao dos niveis de dor e do tempo de permanencia pos-operatorio durante a reabilitacao de pacientes que realizaram revascularizacao do miocardio por meio da abordagem de esternotomia mediana. Metodo: a amostra foi composta por oito pacientes divididos em dois grupos? tratamento e placebo, cujo tratamento de reabilitacao consistiu de 5 procedimentos de ultra-sonoterapia em modo pulsado, com frequencia de 3MHz, intensidade de 0,2 W/cm2 regime de pulso a(20 por cento) durante 5 minutos por sessao, duas vezes por dia...
Subject(s)
General Surgery , Myocardial Revascularization , Pain , Rehabilitation , Ultrasonic TherapyABSTRACT
Soros sanguineos de 100 individuos sadios foram utilizados na determinacao polarografica da atividade ceruloplasminica, com a finalidade de serem detectadas variacoes nas taxas basais desta enzima, ligadas com o sexo, cor e gravidez. Os resultados obtidos mostram variacoes bastante importantes na dependencia destes parametros, as quais deverao ser levadas em conta na utilizacao correta desta enzima como meio de diagnostico e de acompanhamento terapeutico de varias doencas