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Sjögren's syndrome is an autoimmune disease that is characterized by dryness of the mouth and eyes. The loss of salivary and lacrimal gland function is accompanied by lymphocytic infiltration. Because similar symptoms and glandular pathology are observed in certain persons infected with human immunodeficiency virus (HIV), a search was initiated for a(More)
A method for quickly and accurately calculating Rayleigh-and Love-mode group-velocity partial derivatives with respect to model parameters (m) is developed. The method requires computer codes that calculate C, U, and ~-m ~ tO and employs numerical differentiation Of~m to yield The method is O~ 0C fast because ~ and for all the model parameters can be(More)
BACKGROUND Approximately 25% of hemophiliacs that were frequently exposed to blood clotting factor concentrates (CFCs) contaminated with human immunodeficiency virus (HIV) are presently HIV seronegative. In this study, we sought to determine if some of these individuals were at any time transiently HIV seropositive. In the early to mid-1980s the majority of(More)
Sera from a small sample of adult blood donors, healthy school children and patients with lymphoma, leukaemia, non-haematologic cancer, congenital and inflammatory disorders from Ibadan, Nigeria were screened for HTLV-I antibody by an enzyme-linked immunoabsorbent assay and confirmed by investigational Western blot. Seventy-nine of 236 positively screened(More)
The diversity in intracellular signalling downstream of adenosine receptors is dependent on the receptor subtype activated by adenosine. A 1 and A 2A are considered high affinity receptors while A 2B and A 3 are considered as low affinity receptors. Despite the apparent widespread distribution of A 2B in every cell of every species, the receptor number and(More)
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