IN this paper we are concerned with the problem of classifying compact surfaces immersed in Iw” up to regular homotopyt. This subject started in 1958 when Smale classified the immersions of the 2-sphere [17]. For n 2 4 the problem was then completely solved by Hirsch ([8], theorems 8.2 and 8.4): if M2 is a compact surface then for n 2 5 any two immersions f, g : M2 + R” are regularly homotopic,...

Nonspecific cecal ulcer (NSCU) is a rare entity described by Cruveilhier in 1832. NSCU has no specific presenting features and it can mimic a host of conditions like appendicitis, diverticulosis and colonic carcinoma. Earlier, this terminology was used to depict those ulcers where it was not possible to make the exact diagnosis. There are only a few cases where a specific preoperative diagnosis...

Infectious agents are a major cause of acute exacerbations of chronic bronchitis (AECB) and COPD. Several respiratory viruses are associated with 30% of exacerbations, with or without a superimposed bacterial infection. Atypical bacteria, mostly Chlamydia pneumoniae, have been implicated in < 10% of AECB. The role of bacterial pathogens when isolated from the respiratory tract during AECB has b...

This paper suggests that there is a need, as early as Reception, to implement smoking intervention programmes in the local school curriculum. Findings from a cross-sectional study have shown that primary schoolchildren (4-8 years old) possess negative attitudes and beliefs about smoking, have as yet to establish regular patterns of smoking behaviour, and have a broad understanding of the nature...

A large and continually-growing body of research has explored the ways in which deception might be detected. The area is developing rapidly, opening up new avenues of study. This special issue of the Journal of Investigative Psychology and Offender Profiling brings together an exciting array of papers on the detection of deception within investigative contexts, examining a wide range of issues ...

Pharmacological agents, such as histamine H(2) receptor antagonists and acid pump inhibitors, are now the most frequently used treatment for such acid-related diseases as gastroduodenal ulcers and reflux esophagitis. Based on increased understanding of the precise mechanisms of gastric acid secretion at the level of receptors, enzymes, and cytoplasmic signal transduction systems, further possib...

Epidemiol Community Health 1995;49:563-569 Multiple sclerosis (MS) is a disease of relatively low incidence in the United Kingdom. Because of its long clinical course, however, its prevalence is moderately high and it makes a considerable impact on individuals, families, and on the health and social services. The inclusion in this review of the epidemiology, genetics, and health care of MS is i...

The role of surgery in the management of arthritis begins with prevention, and in the case of osteoarthritis it is important to ensure fractures and injuries are managed appropriately to prevent post-traumatic degenerative changes in joint [1-3]. Pedersen et al. discuss acute osteochondral fractures in the lower extremities and provide an approach to the identification and treatment of these in...

In this paper, we characterize of totally geodesic Kähler immersions by extrinsic shapes of some curves having points of order 2.