Trade relationships built through production chains appear to be lasting due to relation-specific nature of the transactions, compared with the usual transactions of goods sold on the open market. This paper aims to verify such stability of international production networks at the global level, with special emphasis on intra-East Asian trade. A series of survival analyses provide an evidence su...

Background: Advances in medical science and nursing care today have led to the survival of preterm infants. Therefore, it is important to address methods to reduce the duration of hospitalization of preterm infants. Aim of the systematic review on the efficacy of aromatherapy on reducing the duration of hospitalization of preterm infants. Materials an...

Background: Phenol and its derivatives like dinitrophenol and pentachlorophenol (carbolic acid) are widely used as insecticides, but they are very toxic substances. Phenol is a general protoplasmic poison with corrosive local effects that denature proteins. Poisoning with phenol compounds may occur by ingestion, inhalation, and absorption through skin. In this report we presented the toxicity...

Orofacial pain is a common complaint and challenging diagnostic problem. Among numerous causes of orofacial pain, the most common are diseases of teeth and periodontium, followed by various diseases and lesions of the oral mucosa. Pain of the oral mucosa is an accompanying symptom of different mucosal lesions caused by local or systematic factors. This type of pain belongs to the category of su...

The objective of the present investigation was to study the influence of the occupational nickel exposure on the concentration of nickel in nasal mucosa, plasma and urine. Plasma, urine and biopsy specimens of nasal mucosa from 318 nickel workers, 15 retired nickel workers and 57 non-exposed controls were analyzed for nickel by atomic absorption spectrometry. The results showed that nickel expo...

AIMS To assess potential alterations of the nasal mucosa by clinical and histopathological evaluation of workers exposed to sulphuric acid mists at anodising plants, correlating the findings with duration of exposure and sulphuric acid concentrations in the air, and comparing them with a control group. METHODS Fifty two workers from five plants underwent a clinical evaluation (standard questi...

lipoma, a benign tumor of adipose tissue is one of the most common benign neoplasms of the body. however, its occurrence in oral cavity is very rare. it accounts for 1 to 4% of benign neoplasms of mouth affecting predominantly the buccal mucosa, floor of mouth and tongue. we report three cases of intraoral lipoma, two in buccal mucosa and one in labial mucosa. an excisional biopsy was performed...