Alternative permanent-magnet materials with intermediate performance, such as K1 , are investigated experimentally. Our focus is on the structural and magnetic properties of bulk YCo5-xFex and on rare-earth-free transition-metal alloys such as TMxCo100-x (TM = Zr, Hf). YCo5-xFex alloys (x = 0 to 0.75), which crystallize in the hexagonal CaCu5-type structure, exhibit an improved of anisotropy an...

There was no increased incidence of HLA-B27 in patients suffering from rubella arthropathy, when compared to both the Westminster controls and a group of patients with arthritis secondary to dysentery who nearly all possessed this allele.

The uncommon conditions in leprosy requiring surgical correction are either the direct result of the disease or secondary to nerve paralysis. They usually occur in the later stages of leprosy and are uncommon today, thanks to early treatment of leprosy by multidrug therapy (MDT). However, in areas where treatment has only started recently, there is a backlog of such deformities needing correcti...

Penile cancer is an uncommon primary genitourinary malignancy, the vast majority representing superficial squamous cell carcinomas. However, less common skin cancers, secondary malignancies, mesenchymal neoplasms, and hematopoietic tumors do affect the penis. Medical history, atypical presentation, and deep epicenter of a penile mass may raise question of a nonepithelial neoplasm. We describe a...

composed of cells that exhibit sebaceous differentiation; these tumors account for less than 0.1% of all salivary gland neoplasms (1, 2). The parotid gland is the most frequently involved of the salivary glands, where sebaceous differentiation is common (3). There is little information available in English literature on the radiologic features of this rare neoplasm, especially that of cystic se...

Unusual manifestations of common diseases are still relatively common events. Crohn's disease may involve the entire gastrointestinal tract from the pharynx to the anus. Although the classic findings of ileocolic disease are well known, the changes described above are less commonly encountered. They may be subject to misdiagnosis unless the protean manifestations of Crohn's disease are kept in ...

Exocrine pancreatic insufficiency (EPI), an important cause of maldigestion and malabsorption, results from primary pancreatic diseases or secondarily impaired exocrine pancreatic function. Besides cystic fibrosis and chronic pancreatitis, the most common etiologies of EPI, other causes of EPI include unresectable pancreatic cancer, metabolic diseases (diabetes); impaired hormonal stimulation o...

Malignant rhabdoid tumors (MRT) of the kidney are rare in children and even less common in adults, with only six previously reported adult cases. We present the case of a 60-year-old man with an MRT arising in the left kidney with extensive pulmonary micrometastases and thromboembolism resulting in thrombotic pulmonary microangiopathy (pulmonary tumor embolism syndrome). MRT is an extremely agg...

Urethral cancer is the only genitourinary neoplasm with a predilection for women, the ratio being 4:1. The histologic type depends on the cells of origin. Squamous-cell carcinoma predominates, with adenocarcinoma and transitional-cell carcinoma being less common and undifferentiated carcinoma, malignant melanoma, mixed tumors, clear-cell carcinoma, and cloacogenic carcinoma accounting for the r...

The circumstances in which pulmonary hypertension is found alone or in association with emphysema, mitral stenosis, or congenital cardiac shunts have been described already (Gilmour and Evans, 1946; Evans, 1951; Evans et al., 1957; Evans and Short, 1957 and 1958). This paper discusses pulmonary hypertension in relation to the less common clinical states that cause a rise in pulmonary arterial p...