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Occupational Neurologic Disorders in Korea
김양호,정경숙,윤영훈,오명숙 대한신경과학회 2010 Journal of Clinical Neurology Vol.6 No.2
This article presents a schematic review of the clinical manifestations of occupational neurologic disorders in Korea and discusses the toxicologic implications of these conditions. Vascular encephalopathy, parkinsonism, chronic toxic encephalopathy, cerebellar dysfunction, peripheral neuropathy, and neurodegenerative diseases are common presentations of occupational neurotoxic syndromes in Korea. Few neurotoxins cause patients to present with pathognomic neurologic syndrome. Detailed neurologic examinations and categorization of the clinical manifestations of neurologic disorders will improve the clinical management of occupational neurologic diseases. Physicians must be aware of the typical signs and symptoms of possible exposure to neurotoxins, and they should also pay attention to less-typical, rather-vague symptoms and signs in workers because the toxicologic characteristics of occupational neurologic diseases in Korea have changed from typical patterns to less-typical or equivocal patterns. This shift is likely to be due to several years of lowdose exposure, perhaps combined with the effects of aging, and new types of possibly toxicant-related neurodegenerative diseases. Close collaboration between neurologists and occupational physicians is needed to determine whether neurologic disorders are work-related.
당뇨유발백서에서 피하신경전기자극의 말초신경기능 개선효과
김양호,장미경,신민철,Kim, Yang-Ho,Chang, Mee-Kyung,Shin, Min-Chul 대한물리치료학회 2006 대한물리치료학회지 Vol.18 No.4
Purpose: This study aimed the effects of percutaneous electric nerve stimulation (PENS) applied to different parts of the streptozotocin-induced diabetic rats on the change of glucose and nerve. Methods: rats (ten weeks old) were selected as the subjects; the normal group was five rats, and the diabetes induction group II, III and IV were five rats, respectively, which were randomly sampled from the twenty-five streptozotocin-administered rats with more than $240\;d{\ell}/m{\ell}$ of blood sugar. For PENS, electric current with 2 Hz of stimulation frequency and $200\;{\mu}s$ of pulse duration was applied to the subjects for fifteen minutes a day, six days a week, for three weeks. Calculation of glucose and weight, and nerve conduction test were conducted forty-eight hours and three weeks after streptozotocin administration, respectively. Results: As for change of glucose and weight, the group III with stimulation to the acupoints and the group IV with stimulation to non-acupoints showed significant differences from the control group II (p<0.05). As for MNCV (motor nerve conduction velocity), the group III with stimulation to the acupoints showed significant differences from the group IV with stimulation to non-acupoints and the control group II (p<0.05). Conclusion: PENS had the effects of inhibiting increase of glucose, change of weight and decrease of nerve conductive function between the distal and proximal ends of the peripheral nerve in the STZ-induced diabetic rats.
Iron deficiency increases blood concentrations of neurotoxic metals in children
김양호,박상규 대한소아청소년과학회 2014 Clinical and Experimental Pediatrics (CEP) Vol.57 No.8
Iron deficiency affects approximately one-third of the world’s population, occurring most frequently inchildren aged 6 months to 3 years. Mechanisms of iron absorption are similar to those of other divalentmetals, particularly manganese, lead, and cadmium, and a diet deficient in iron can lead to excessabsorption of manganese, lead, and cadmium. Iron deficiency may lead to cognitive impairmentsresulting from the deficiency itself or from increased metal concentrations caused by the deficiency. Iron deficiency combined with increased manganese or lead concentrations may further affectneurodevelopment. We recently showed that blood manganese and lead concentrations are elevatedamong iron-deficient infants. Increased blood manganese and lead levels are likely associated withprolonged breast-feeding, which is also a risk factor for iron deficiency. Thus, babies who are breastfedfor prolonged periods should be given plain, iron-fortified cereals or other good sources of dietaryiron.
기업윤리의 구성요인과 조직유효성의 관계 및 조직문화 인식의 조절효과에 관한 연구
김양호 한국경영교육학회 2012 경영교육연구 Vol.27 No.2
본 연구에서는 기업윤리의 구성요인이 근로자의 직무만족과 조직몰입에 미치는 영향력을 검증하고, 이들 사이의 관계에서 윤리적 조직문화의 조절효과를 검증하고자 한다. 분석결과 기업윤리의 구성요인은 개인특성에 따라 유의적인 차이를 보이고 있으며, 조직적 요인과 사회적 요인의 순으로 조직유효성에 높은 영향을 미치고 있다. 특히 근로자의 조직몰입이 직무만족에 비해 기업윤리의 영향을 높이 받는 것으로 나타나고 있다. 또한 기업윤리와 조직유효성과의 관계에서 개인적 요인, 조직적 요인 및 사회적 요인의 순으로 조직문화의 조절효과가 인정되고 있다. 특히 직무만족은 개인적 요인과 조직적 요인에서 조직몰입에 비해 높은 조절효과가 나타나고 있으며, 조직몰입은 사회적 요인에서 직무만족에 비해 높은 조절효과가 나타나고 있다. 따라서 기업윤리는 조직의 성과에 중요한 결과를 초래하며, 기업의 윤리적 조직문화는 조절변수로서 영향을 미치기 때문에 기업의 경쟁력 확보와 근로자의 동기부여를 위하여 새로운 차원에서 전략적 접근이 요구되고 있다. The purpose of this study is to analyze the impact of business ethics on employee job satisfaction and organizational commitment. In particular, the study estimates moderating effects of organizational culture in the relationship. Empirical results suggest that business ethics has significant impact on organizational performance; individual characteristics, organizational factors, and social factors had influences on performance. In particular, employees’organizational commitment, contrasted to job satisfaction, has been affected by business ethics significantly. Also, moderating effects of organizational culture are statistically significant in the order of individual characteristics, organizational factors, and social factors. In case of job satisfaction, individual and organizational factors had significant moderating effects, while, in case of organizational commitment, only social factors had significant moderating effects. Hence, this study suggests that business ethics has significant performance effects and organizational culture provides critical platform which warrants further strategic approaches in the contemporary business world.