The mifare Classic is a contactless smart card that is used extensively in access control for office buildings, payment systems for public transport, and other applications. We reverse engineered the security mechanisms of this chip: the authentication protocol, the symmetric cipher, and the initialization mechanism. We describe several security vulnerabilities in these mechanisms and exploit t...

This review focuses on the efficacy and safety of Chinese medicine in the treatment of type-2 diabetes. Included were 84 controlled clinical studies of type-2 diabetes treated with Chinese medicine for at least 1 month. Reported outcomes were: symptom relief; improvement in glycemia, insulin resistance and secondary failure, and adverse events. Symptom relief was achieved in most (>80%) of the ...

Objective This review is a general outline to have proper understanding of Japanese Kampo medicine from my point view. Background What the basis medical care? The answer how capture signals emitted by living body. In western medicine, diagnosis with disease name required for therapy acquire insurance reimbursement. contrast, in pathophysiological choosing medication. Western science disease, wh...

introduction: Seminoma comprises ~50% of testicular germ cell tumors. Renal metastases are infrequent and are usually diagnosed at necropsy. Clinical case: A 24-year-old male with a history of left radical orchiectomy and adjuvant radiotherapy due to classic seminoma (stage I) showed elevated levels of b-human chorionic gonadotropin and lactate dehydrogenase during the 11-month follow-up. Compu...

Congenital adrenal hyperplasia is attributed to inherited enzyme defects in the adrenal cortex. The classical form results in reduced production of cortisol and aldosterone, accompanied by an increase in production of adrenal cortical androgens. This causes virilisation in girls, adrenocortical failure and early puberty in both sexes. This article describes the genetics, clinical picture, diagn...

A 57-year-old man presented with increasing respiratory distress. Chest radiography (Figure 1) and computed tomography (Figure 2) confirmed the diagnosis of a huge lung bulla. Bullectomy was performed (Figure 3). Subsequently, the remaining lung expanded fully to fill the hemithorax. On follow-up after 7 years, the patient was asymptomatic with fully expanded lung without any bulla. Asian Cardi...

sented with a four-year history of asymp tomatic lesions on his legs. On examination, he had violaceous infiltrated areas on his feet and below his knees (Figure 1A; Appendix 1, available at www.cmaj.ca /lookup /suppl /doi:10.1503 /cmaj.101646/-/DC1). Histology confirmed a diagnosis of Kaposi sarcoma (Appendix 2, available at www.cmaj.ca /lookup /suppl/doi:10.1503/cmaj.101646/-/DC1), and immuno...

The early 1980s saw the development of some rather sophisticated distributed systems. These were not merely networked file systems: rather, using remote procedure calls, hierarchical naming, and what would now be called middleware, they allowed a collection of systems to operate as a coherent whole. One such system in particular was developed at Newcastle that allowed pre-existing applications ...

Classic galactosemia is an autosomal recessive disorder of galactose metabolism due to deficiency of the enzyme galactose-1phosphate uridyltransferase (GALT). Most affected babies develop severe manifestations such as failure to thrive, vomiting, diarrhea, hypoglycemia, hypotonia, jaundice (which is often unconjugated in the beginning) and cataracts within 1-2 weeks of starting milk feeding [1,...