Investigative and test 588 workers of 9 stone exploit and process companies in Binh Dinh finding out and define 19 of them (occupy 3,23%) get silico-pneumocosiosis main 1/10p type. Most of those workers were young, seniority low (6-20 years). People who working less than 5 years haven’t silico-pneumocosiosis. They were given CT-2002 muffler which according to standard of technical target. Filter performance get 85-87% with output 30l/minute. When ventilate output increase to 95l/minute. Performance reduce to 44-46,9%
Pneumoconiosis ; Occupational Medicine ; Occupational Health

The study included 109 patients (mean age: 28, 52 males and 57 females) having 186 eyes with corticoid-related glaucoma who underwent trabeculectomy between Nov 11 to Jan 2004. The results: preoperate average intraocular pressure was 35.5mmHg. 34% patients have low vision acuity (< 3/10). Most of patients were indicated surgery had dramatic damage in vision field. Rate of decreasing intraoccular pressure during follow-up period met requirements, average intraoccular pressure was under 21mmHg. There were not any complication during surgery. Bleeding during conjunctive and sclera resection were common and treated by stop bleeding. Postoperative complications as hyphaema, flat anterior chamber, choroidal detachment, incision fistula occurred with high rate
Glaucoma ; Trabeculectomy ; Adrenal Cortex Hormones

51 patients with primary liver cell cancer determined by pathological anatomy or with liver tumors determined by ultrasound or CT image and AFP > 500ng/ml were investigated. Triphasic helical CT had detected diffused infiltration on 5 patients, multitumor on 20 and single tumor on 26 patients. On 46 patients with localized damage, there were 121 tumors sized 0.9-12.0 cm. Necrosis was common in > 5 cm tumors with a rate of 53.1%, but 21.5% if its size was not considered. Triphasic helical CT technique had reflexed the hemodynamic nature of the liver parenchyma and the primary liver cancer, therefore it gave prospective information helping the diagnosis and the decision of the treatment strategy.
Liver Neoplasms ; Neoplasms ; liver ; diagnosis ; Tomography, X-Ray Computed

A retrospective study of 200 Kovacs has been applied in 2nd trimester abortion in 1997 and other 200 by MSP in 1998. -MSP could be efficacy in 2nd trimester abortion as Kovacs.-In first 48h, the natural abortion by MSP and Kovacs is the same.-The propotion of MSP abortion is higher than Kovacs, hospitalized stay length of MSP is shorter than Kovacs.-No infection in MSP trials
Misoprostol ; Pregnancy Trimester, Second ; Pregnancy ; Abortion, Induced

Background: Previously, most studies evaluating nutritional status in Vietnam are based on the weight, height indexes or body mass index (BMI). Recently, Ha Huy Tue and his colleagues conducted a study to evaluate body composition in adults in both rural and urban\r\n', u'Objectives: To evaluate nutritional status and body composition and analyze the roleof BMI and percentage body fat (% BF) in determining the status of overweight and obesity\r\n', u'Subjects and method: A cross \u2013sectional study was carried out in 2.671 pupils (male/female: 50.6%/49.4%) aged 11-14 years old of 6 secondary schools in Hanam province Binh Luc district. BMI and %BF are the two indicators used for analyzing. \r\n', u'Results: The prevalence of subjects with BMI\ufffd?5th percentile was less than 1% for both males and females. Mean %BF ranged from 17.4-18.3% and from 13.9-20.2% for males and females, respectively. One unit of BMI corresponds to a large range of %BF. %BF has a goof sensitivity to detect high body fat in males; %BF can be a indicator to identify early overweight and obesity in pupils.\r\n', u'Conclusion: Proportion of overweight and obesity in 11-14 year-old schoolchildren of Binh Luc district, Ha Nam province is low. Therefore, obesity is not significant issue for the public health in the local. % BF can be used for the prevention of overweight, obesity in the community, especially the schoolchildren.\r\n', u'\r\n', u'\r\n', u'
Nutritional Status ; Body Composition ; Child ;

Classical sorting by reversals uses the unit-cost model, that is, each reversal consumes an equal cost. This model limits the biological meaning of sorting by reversal.Bender and his colleagues extended it by assigning a cost function f(l) = lα for all α≥ 0, where l is the length of the reversed subsequence. In this paper, we extend their results by considering a model in which long reversals are prohibited. Using the same cost function above for permitted reversals, we present tight or nearly tight bounds for the worst-case cost of sorting by reversals. Then we develop algorithms to approximate the optimal cost to sort a given 0/1 sequence as well as a given permutation. Our proposed problems are more biologically meaningful and more algorithmically general and challenging than the problem considered by Bender et al. Furthermore, our bounds are tight and nearly tight, whereas our algorithms provide good approximation ratios compared to the optimal cost to sort 0/1 sequences or permutations by reversals.

Introduction: Hepatitis C is a dangerous disease and if left untreated can have serious consequences to the patients. While hepatitis C is difficult to treat, its vaccine is still unavailable. Previous studies have showed that there is a low rate of drug users having HCV tests. This means HCV infections does not have any great importance attached to it amongst the drug user group.\r\n', u'Objectives: To discover the status of HCV infection among drug users in Hanoi and to analyse the associated factors. \r\n', u'Subjects and methods: This crossover descriptive study was conducted in Hanoi. Research objects consisted of only men within the 16 - 25 years old age group, who used heroin from 09/2005 to 12/2006. These participants were interviewed and tested for HIV, HCV and HBV.\r\n', u'Results: HCV prevalence is 35.1 %. Especially, the research has indicated that 100% of HIV infected cases have also contracted HCV. This co - infectious status can be a challenge to subjects when they experience ARV treatment. The mean age of surveyed participants is 19. 83.6% of them have attended secondary school. 30.1 % have taken part in illegal earning activities. \r\n', u'Conclusion: HCV infection was discovered in the early drug injection stage. The proportion of HIV infection among injecting drug users is 28.24 times compared to the smoking drug users.\r\n', u'
HeV ; HIV ; Injecting drug user

Objectives: Vertebral fractures are associated with disability and mortality, but most vertebral fractures are asymptomatic. The present study aimed to determine the incidence of and develop a predictive nomogram for asymptomatic vertebral fractures in Vietnamese adults. Methods: This cohort study as a part of the Vietnam Osteoporosis Study involved 168 men and 287 women aged 50 years and older without a clinically diagnosed vertebral fracture. Their spine x-rays were taken at the recruitment and subsequent 2-year visit. Vertebral fractures were ascertained using the Genant’s semiquantitative method. We employed the Bayesian Model Averaging method to search for the optimal model for predicting asymptomatic vertebral fractures. A predictive nomogram was also developed to facilitate risk prediction. Results: During a median of 2.38 years of follow-up, 13 men and 16 women developed an asymptomatic vertebral fracture, yielding the overall incidence rate of 28 fractures per 1000 person-years, or 33 fractures/1000 personyears in men and 24 fractures/1000 person-years in women, respectively. Most asymptomatic vertebral fractures were moderate, almost 1.5 times more common than mild fractures. The optimal model for predicting incident asymptomatic vertebral fractures included age, male sex and lower femoral neck T-score. The area under the receiver’s operating characteristic curve was 0.91, with 95% CI ranging from 0.86 to 0.96. Conclusions Asymptomatic vertebral fractures were relatively common among adults in Vietnam. A simple model with sex, age and femoral neck T-score is helpful for selective screening of asymptomatic vertebral fractures in Vietnamese individuals.

Objectives: Vertebral fractures are associated with disability and mortality, but most vertebral fractures are asymptomatic. The present study aimed to determine the incidence of and develop a predictive nomogram for asymptomatic vertebral fractures in Vietnamese adults. Methods: This cohort study as a part of the Vietnam Osteoporosis Study involved 168 men and 287 women aged 50 years and older without a clinically diagnosed vertebral fracture. Their spine x-rays were taken at the recruitment and subsequent 2-year visit. Vertebral fractures were ascertained using the Genant’s semiquantitative method. We employed the Bayesian Model Averaging method to search for the optimal model for predicting asymptomatic vertebral fractures. A predictive nomogram was also developed to facilitate risk prediction. Results: During a median of 2.38 years of follow-up, 13 men and 16 women developed an asymptomatic vertebral fracture, yielding the overall incidence rate of 28 fractures per 1000 person-years, or 33 fractures/1000 personyears in men and 24 fractures/1000 person-years in women, respectively. Most asymptomatic vertebral fractures were moderate, almost 1.5 times more common than mild fractures. The optimal model for predicting incident asymptomatic vertebral fractures included age, male sex and lower femoral neck T-score. The area under the receiver’s operating characteristic curve was 0.91, with 95% CI ranging from 0.86 to 0.96. Conclusions Asymptomatic vertebral fractures were relatively common among adults in Vietnam. A simple model with sex, age and femoral neck T-score is helpful for selective screening of asymptomatic vertebral fractures in Vietnamese individuals.

Objectives: Vertebral fractures are associated with disability and mortality, but most vertebral fractures are asymptomatic. The present study aimed to determine the incidence of and develop a predictive nomogram for asymptomatic vertebral fractures in Vietnamese adults. Methods: This cohort study as a part of the Vietnam Osteoporosis Study involved 168 men and 287 women aged 50 years and older without a clinically diagnosed vertebral fracture. Their spine x-rays were taken at the recruitment and subsequent 2-year visit. Vertebral fractures were ascertained using the Genant’s semiquantitative method. We employed the Bayesian Model Averaging method to search for the optimal model for predicting asymptomatic vertebral fractures. A predictive nomogram was also developed to facilitate risk prediction. Results: During a median of 2.38 years of follow-up, 13 men and 16 women developed an asymptomatic vertebral fracture, yielding the overall incidence rate of 28 fractures per 1000 person-years, or 33 fractures/1000 personyears in men and 24 fractures/1000 person-years in women, respectively. Most asymptomatic vertebral fractures were moderate, almost 1.5 times more common than mild fractures. The optimal model for predicting incident asymptomatic vertebral fractures included age, male sex and lower femoral neck T-score. The area under the receiver’s operating characteristic curve was 0.91, with 95% CI ranging from 0.86 to 0.96. Conclusions Asymptomatic vertebral fractures were relatively common among adults in Vietnam. A simple model with sex, age and femoral neck T-score is helpful for selective screening of asymptomatic vertebral fractures in Vietnamese individuals.