The purpose of this study is to analyze occupational history of coal miners with pnemoconiosis. In this study, occupational chracteristics of 49 coal miners with pneumoconiosis were compared with those of 45 coal miners without pneumoconiosis but in similar age category (43-52 years of age) based on interview survey. Various indices on occupational characteristics were developed for the following areas: duration of employment, perception of working condition, working density, dust concentration, temperature, humidity, and experience of respirator wearings. Perception of working condition were measured in 5 points scales but experiences of respirator wearing was measured in 3 points scale. Each index was multiplied by duration of employment. From the analysis, only the experience of respirator wearing showed statistically significant difference between the two groups. Therefore, respirator wearing seemed to be effective in reducing occurrence of pneumoconiosis.
Coal* ; Dust ; Employment ; Humidity ; Pneumoconiosis* ; Ventilators, Mechanical ; Weights and Measures

No abstract available.
Central Nervous System* ; Solvents*

Many investigators have shown that computer analysis of exercise induced ST segment changes in feasible and valid. This technique should make it possible to achieve uniformity of interpretation. Though myocardial ischemic response, arrhythmia, R wave amplitude and heart rate changes are documented by CASE exactly, blood pressure change, subjective and objective signs are assessed clinicall only. Therefore, both CASE and clinical analysis are demanded for the precise interpretation of GXT. Two hundred and ten patients, aged 22-68 y/o, were evaluated for comparative analysis between CASE and clinical assessment. The following results were obtained; 1) The sensitiivity of CASE to clinical analysis is 70.2%. 2) Among the 40 cases with ST segment-positive response, 24 cases(60%) had a less than 2mm ST depression and 16 cases(40%) had a more than 2mm ST depression. 3) Among the 40 cases with ST segment-positive response, 30 cases(75%) had a increased in R wave amplitude of 2.8mm in average, while among the 153 cases with GXT-negative response, 61 cases(39.9%) had R wave increase of 1.5mm in average. 4) Increment of systolic blood pressure per MET was 5.6 mmHg. There was no significant difference by age.
Arrhythmias, Cardiac ; Blood Pressure ; Depression ; Heart Rate ; Humans ; Research Personnel

Dyschromatosis symmetrica hereditaria (DSH) is characterized by a symmetrical distribution of hyperpigmented and hypopigmented macules on the extremities, especially over the dorsa of the hands and feet. The pattern of inheritance is believed to be autosomal dominant, but many sporadic cases have been reported. We report one family of DSH, which showed a typical autosomal dominant pattern of inheritance by pedigree analysis.
Extremities ; Foot ; Hand ; Humans ; Pedigree ; Wills

The purpose of this study was to investigate the effect of hospitalization and diagnosis of disease on the mental health of coal workers' pneumoconiosis patient. The study subjects were composed of four groups for comparison; hospitalized coal workers' pneumoconiosis, healthy coal miners, and railroad workers employed by government. About a hundred of respondents in each group were sampled by random. Mental health data were collected by symptom distress checklist 90 (SCL-90), and other characteristics were collected by interview with questionnaire administered trained interviewers in each respondents. Mental health dimension was classified into 9 dimensions; somatization, obsessive-compulsiveness, interpersonal sensitivity, depression, anxiety, hostality, phobic anxiety, paranoid, psychosis. And as total index, global severity index, positive symptoms total, positive symptom distress index were also computed. As a result there is difference of mean score of 9 symptom dimensions among four groups. The mean score of the examinees of depth diagnosis of the impressed coal workers' pneumoconiosis is the highest score in all 9 symptom dimensions. However in the hospitalized coal workers' pneumoconiosis scores of somatization, depression, anxiety, and phobic anxiety were still higher than that of healthy coal miners. And other symptom dimensions were not different from that of healthy coal miners.
Anxiety ; Checklist ; Coal* ; Data Collection ; Depression ; Diagnosis ; Hospitalization ; Humans ; Mental Health ; Pneumoconiosis* ; Psychotic Disorders ; Questionnaires ; Railroads

No abstract available.
Nails, Malformed* ; Pachyonychia Congenita*

No abstract available.
Nails, Malformed* ; Pachyonychia Congenita*

No abstract available.

No abstract available.
Cloning, Molecular* ; DNA* ; Helicobacter pylori* ; Helicobacter* ; Sequence Analysis, DNA* ; Urease*

No abstract available.
Birds* ; Orientia tsutsugamushi* ; Rickettsia*