Conocimientos, actitudes y prácticas sobre la adherencia al lavado de manos en personal de salud / Knowledge, attitudes and practices related to the adherence of handwashing in health personnel

Introducción: El lavado de manos deficiente, sigue siendo un problema hospitalario. Cumplir con las recomendaciones internacionales ofrece seguridad en el cuidado. Objetivo: Identificar el nivel de conocimiento, actitudes y prácticas en la técnica del lavado de manos en personal de salud en un hospital pediátrico de La Habana. Metodología: Estudio descriptivo a 145 trabajadores (31,7 por ciento médicos, 35,2 por ciento enfermeros, 22,8 por ciento médicos residentes y 10,3 por ciento estudiantes). De 13 servicios el cuerpo de guardia, sala de respiratorio, cirugía, neurocirugía y quemados, fueron los que más participación tuvieron. El estudio se realizó en tres etapas: 1. Observación directa de la técnica del lavado de manos. 2. Observación de la calidad del lavado de manos mediante lámpara fluorescente. 3. Medida del conocimiento acerca del lavado de manos y actitud mediante encuesta. Resultados: En la primera etapa, el 51,7 por ciento calificó de inadecuado, en la segunda etapa el 64,8 por ciento también tuvo una evaluación inadecuada y en las encuestas, el conocimiento alcanzó solo 52,4 por ciento, considerado inapropiado. La actitud ante esta actividad fue calificada de inadecuado en el 53,1 por ciento, con un mejor porcentaje en el personal de enfermería. Conclusiones: Los conocimientos, actitudes y prácticas sobre el lavado de manos es deficiente, por lo que debe diseñarse un programa de capacitación en todos los niveles, sea pregrado, posgrado o formación continua, donde exista responsabilidad individual de cada profesional sanitario, y se insista en ello(AU)

Introduction: Deficient handwashing is still a problem in hospitals. The compliance of the international recommendations on this matter provides security in the care. Objective: To identify the level of knowledge, attitudes and practices in the technique of handwashing in a pediatric hospital in Havana. Methodology: Descriptive study applied to 145 workers (31.7 percent doctors, 35.2 percent nurses, 22.8 percent residents, and 10.3 percent students) of 13 services. Emergencies, Respiratory, Surgery, Neurosurgery and Caumatology were the services with more participation. The study was conducted in three stages: 1. Direct observation of the technique of handwashing. 2. Quality observation of the handwashing using fluorescent lamp. 3. Extent of knowledge on handwashing and attitudes through survey. Results: In the first stage, the 51.7 percent the handwashing was assessed as inappropriate, in the second stage the 64.8 percent was also evaluated as inadequate, and in the surveys, the 52.4 percent had an incorrect knowledge; the attitude towards this activity was described as inappropriate in the 53.1 percent , with a better percentage in the nursing staff. Conclusions: The knowledge, attitudes and practices on handwashing were poor, so it must be designed a training program at all levels, whether undergraduate, graduate or continuing training, where individual responsibility of each healthcare professional exists, and should be highlithed(AU)

Organic and Inorganic Mercury in Biological Samples of Flouresecent Lamp Industries Workers and Health Risks / 生物医学与环境科学（英文）

Objective@#The present study aims to investigate the concentrations of Hg and its aspects methyl mercury (Me-Hg) and inorganic mercury (I-Hg) in the biological samples (BSs) of fluorescent lamp industries workers (FLIWs).@*Methodology@#Different BSs including red blood cells (RBCs), plasma, urine, hair and nails were collected from the workers exposed to Hg and unexposed persons were selected as control group to measure both the T-Hg concentration as well as its species in different biological samples through quantitative analysis. Health data was collected through questionnaire survey.@*Results@#The mean concentrations of T-Hg (31.9 µg/L), Me-Hg (27.7 µg/L), and I-Hg (5.36 µg/L) in RBCs were found significantly ( < 0.001) higher among the workers ( = 40) as compared to the control group ( = 40). Similarly the mean Hg concentrations in plasma, urine, hair and nails were also significantly higher among the workers than the control group. The statistical relation between Hg concentration and demographic characteristics observed that workers experience and fish consumption has increased the Hg concentration while age, weight and smoking found no significant effect on Hg concentration in the BSs.@*Conclusion@#The study observed that the workers were highly exposed to high concentration of Hg and they are at a high health risk.

A study on the application of Romania risk assessment method of occupational accidents and diseases in a certain fluorescent lamp manufacture enterprise / 预防医学

Objective To assess the risk of occupational hazards of a certain fluorescent lamp manufacturing enterprise and to provide the basis for strengthening the industry's occupational health management.Methods To carry out risk assessment by Romania risk assessment method of occupational accidents and diseases in a certain fluorescent lamp manufacture enterprise,and to identify a certain fluorescent lamp manufacturing enterprise occupational hazards risk factors.To analyze the maximum foreseeable consequences of severity and likelihood,and to determine the level of risk.To compare the results of the assessment with the classification for occupational hazards at workplaces.Results The most serious consequences of high temperature and mercury risk level reached level 6,which is the highest level.Mercury concentration,temperature WBGT index exceeded the occupational exposure limits,and it is the primary risk factor for prevention.The most serious consequences of noise risk reached level 3,which is moderate,but noise level positions exceeded with the occupational exposure limits,and it is also the risk factor for prevention.Grilled pipe,taut filament unlock filament,sealing and exhaust inject mercury were the most serious consequences with the risk reached level 5,which is the highest level.Conclusion The enterprises should strengthen high-temperature,noise monitoring,and the prevention of occupational hazards of mercury.Grilled pipe,taut filament unlock filament,sealing and exhaust inject mercury are key positions for occupational hazard risk control.

Cases of acute mercury poisoning by mercury vapor exposure during the demolition of a fluorescent lamp factory

BACKGROUND: In 2015, workers dismantling a fluorescent lamp factory in Korea were affected by mercury poisoning from exposure to mercury vapor. CASE PRESENTATION: Eighteen out of the 21 workers who participated in the demolition project presented with symptoms of poisoning and, of these, 10 had persistent symptoms even at 18 months after the initial exposure to mercury vapor. Early symptoms of 18 workers included a general skin rash, pruritus, myalgia, sleep disturbance, and cough and sputum production. Following alleviation of these initial symptoms, late symptoms, such as easy fatigue, insomnia, bad dreams, and anxiety disorder, began to manifest in 10 out of 18 patients. Seven workers underwent psychiatric care owing to sleep disturbance, anxiety disorder, and depression, and three workers underwent dermatologic treatment for hyperpigmentation, erythematous skin eruption, and chloracne-like skin lesions. Furthermore, three workers developed a coarse jerky movement, two had swan neck deformity of the fingers, and two received care at an anesthesiology clinic for paresthesia, such as burning sensation, cold sensation, and pain. Two workers underwent urologic treatment for dysfunction of the urologic system and impotence. However, symptomatic treatment did not result in satisfactory relief of these symptoms. CONCLUSION: Awareness of the perils of mercury and prevention of mercury exposure are critical for preventing health hazards caused by mercury vapor. Chelation therapy should be performed promptly following mercury poisoning to minimize damage.

Sugarcane micropropagation using light emitting diodes and adjustment in growth-medium sucrose concentration / Micropropagação de cana-de-açúcar com diodos emissores de luz e ajuste da concentração de sacarose do meio de cultivo

The aim of this research was to evaluate the use of light emitting diodes (LEDs) instead of white fluorescent lamps as light source and adequate growth-medium sucrose concentration for sugarcane micropropagation (Saccharum officinarum L.). Sugarcane (RB 872552 variety) bud explants were evaluated during the multiplication and rooting phases under controlled growth-room conditions. Different light sources (blue, red and green LEDs; Growlux and white fluorescent lamps) and different medium sucrose concentrations (0; 15; 30 and 45g L-1) were used, maintaining constant light intensity (20µmol m-2 s-1), photoperiod (16h) and temperature (25+2°C). The experiment was a completely randomized design, and treatments were arranged in a 5x4 factorial (five light sources and four medium sucrose concentrations) with six replications. Sugarcane bud growth was satisfactory under the three LED types studied. The presence of sucrose in growth media was essential for bud multiplication and rooting. Nevertheless, each light source requires the respective medium sucrose concentration adjustment for best results. Red LEDs provided a significantly high multiplication rate (although not the highest) with 8.5 buds per sub-culture and 34.9g L-1 of sucrose; also, the highest bud length (33.3mm) and the best plantlet acclimatization. Therefore, LED sources can advantageously substitute fluorescent lamps in laboratories of sugarcane micropropagation.

O objetivo deste trabalho foi avaliar o uso de diodos emissores de luz (LEDs) em substituição a lâmpadas fluorescentes brancas e adequar a concentração de sacarose na micropropagação de cana-de-açúcar (Saccharum officinarum L.). Brotações da variedade RB 872552 foram avaliadas nas fases de multiplicação e enraizamento, utilizando as fontes de luz LEDs azuis, LEDs vermelhos, LEDs verdes, lâmpadas Growlux e lâmpadas fluorescentes brancas, e as concentrações de sacarose de 0, 15, 30 e 45g L-1, fixando-se a intensidade luminosa em 20µmol m-2 s-1. Os tratamentos foram dispostos em delineamento inteiramente ao acaso, em fatorial 5x4 (fontes de luz x concentrações de sacarose). O desenvolvimento das brotações foi satisfatório sob os três tipos de LEDs estudados. A presença de sacarose no meio de cultivo foi indispensável para multiplicação e enraizamento das brotações, sendo necessário ajuste da concentração para cada fonte de luz. Os LEDs vermelhos não proporcionaram a maior taxa de multiplicação, porém esta foi bastante alta (8,5 brotos por subcultivo, com adição de 34,9g L-1 de sacarose), com maior comprimento dos brotos (33,3mm) e maior eficiência de aclimatização das plantas. Concluiu-se que os LEDs podem ser utilizados como substitutos das lâmpadas fluorescentes em laboratórios de micropropagação de cana-de-açúcar.

Mercury Concentration in air and in Urine of Workers in Fluorescent Lamp Manufacturing Factories in Korea / 대한산업의학회지

This research was conducted to investigate the correlations between urinary mercury concentration and each independent variable related with urinary mercury levels. the urinary mercury concentrations of 543 workers exposed to metal mercury vapor in a total of 11 fluorescent lamp manufacturing factories and at the same time mercury concentrations in air were measured from June 1989 to December 1989. And annually mercury consumption per workers, mercury consumption per lamp, numbers of breakage lamps, frequency of mercury infusion, numbers of droppers, and numbers of vacuum exhaustion pumps were also investigated. The results were as follows: 1. The geometric mean of airborne mercury concentration in a total of 11 factories was 47.9 microgram/m3 (5.8~352.2 microgram/m3), six factories(54.5%) of them were exceed the threshold limit value(50.0 microgram/m3). 2. The geometric mean of urinary mercury concentration among 543 workers was 84.3 microgram/l (1.13~533.9 microgram/l), the distribution of workers by urinary mercury concentration showed that 26 workers(4.8%) were above the mercury posioning level(300 microgram/l). 3. The correlation coefficient between urinary mercury concentration and monthly numbers of breakage lamps was the highest(0.74) and next was mercury consumption per lamp (0.67), annually mercury consumption per worker(0.63) in order.

Mercury Concentration in Air and in Urine of Workers in A Fluorescent Lamp Manufacturing Factory / 대한산업의학회지

In order In interpret the relationship among many variables, urinary mercury and at the same time mercury concentration in air were measured for 254 workers of a fluorescent lamp manufacturing factory. And monthly mercury consumption amounts, numbers of monthly producing fluorescent lamps, numbers of inferior lamps and numbers of breakage lamps, numbers of vacuum exhaustion pumps and frequencies of mercury infusion were also investigated from January 1988 to March in 1989. The results were as follows; 1. On the mercury concentration in air by producing line and by working site, all of them were exceed the threshold limit value (0.05mg/m(2)). 2. The highest mercury concentration in air by sampling point was found at the floor of workplace (0.334mg/m(2)) and next were at vacuum exhaustion pimp (0.183mg/m(2)), and breathing zone of workers (0.103mg/m(2)) in order. 3. The highest mean of the mercury concentration in urine by producing line was the automatic exhausting line (80.8microgram/1) and next were high speed exhausting line (72.4microgram/1), and Manual exhausting line (35.8microgram/1) in order. Distribution of workers of the mercury concentration in urine more than 200microgram/1 by working site was the highest (10%) in the vacuum exhaustion pump part and next were sealing part (6.6%), packing part (4.6%), and stem part (4.1%) in order. 4. The correlation coefficient between mercury concentration in urine and in air was the highest (0.302) and next were numbers of breakage lamps (0.223), frequencies of mercury infusion (0.223), numbers of inferior lamps (0.205) in order.

A Study on the Effect of Improvement in Work Environment and of Segregation in a Fluorescent Lamp Manufacturing Factory / 예방의학회지

This research was conducted to evaluate the effect of improvement in work environment and of segregation in a fluorescent lamp manufacturing factory. Among the total of 80 workers, 8 workers whose mercury concentration in urine reached a hazardous level (200-299 microgram/l) were moved to mercury free workplace. The follow-up examination for their mercury concentration in urine was done three times; on May 3, 1988, September 1, 1988 and April 3, 1989. The results were as follows: 1. Mercury concentration in the air was reduced from 0.140 to 0.107 mg/m3 in 4 months, and to 0.087 mg/m3 in one year after environmental improvement in workplace. However the level still exceeded the Threshold Limit Value. 2. The geometric mean of urinary mercury concentration among 80 workers was 173.0 microgram/l (5.1~458.6 microgram/l). The distribution of workers according to urinary mercury concentration showed that 9 workers (11.2%) were above the mercury poisoning level (300 microgram/l), 24 workers (30.0%) were 200-299 microgram/l, 35 workers (43.8%) were 50-199 microgram/l, and 12 workers (15.0%) were below 50 microgram/l. 3. Among the 24 workers whose urinary mercury concentration was 200-299 microgram/l, 8 were able to be followed up. Their mean urinary mercury concentration before segregation was 244.9 microgram/l, but decreased to 151.4 microgram/l in four months, 128.8 microgram/l in six months, and 46.8 microgram/l in one year after segregation.