214 research outputs found
Note on the Piezoelectric Constant of PbZrO(3)-PbTiO(3)(PZT)
One of the best known solid solution of perovskites is the PbTiO(3)-PbZrO(3) system which is usually abbreviated as PZT. In the phase diagram of this system, there is a drastic phase change from tetragonal to rhombohedral at the molar ratio around 50:50. The PZT crystals are widely used as a practical piezoelectric material because of its very strong piezoelectric effect near this morphotropic phase boundary. We try to explain this anomaly in piezoelectric constant by a phenomenological theory
Effects of the Copper Content of Orchard Soils on the Mineral Component of Water Sprouts in Japanese Pear Orchards in the Eastern District of Tottori Prefecture
Supersymmetric extension of the sine-Gordon theory with integrable boundary interactions
Integrability and supersymmetry of the supersymmetric extension of the
sine-Gordon theory on a half-line are examined and the boundary potential which
preserves both the integrability and supersymmetry on the bulk is derived. It
appears that unlike the boundary bosonic sine-Gordon theory, integrability and
supersymmetry strongly restrict the form and parameters of the boundary
potential, so that no free parameter in the boundary term is allowed up to a
choice of signs.Comment: Latex 9 pages, submitted to Phys. Lett.
Reflection K-Matrices of the 19-Vertex Model and XXZ Spin-1 Chain with General Boundary Terms
We derive and classify all solutions of the boundary Yang-Baxter equation (or
the reflection equation) for the 19-vertex model associated with
. Integrable spin-1 chain hamiltonian with general
boundary interactions is also obtained.Comment: 14 pages, LaTeX, no figur
Cathepsin G Induces Cell Aggregation of Human Breast Cancer MCF-7 Cells via a 2-Step Mechanism: Catalytic Site-Independent Binding to the Cell Surface and Enzymatic Activity-Dependent Induction of the Cell Aggregation
Natural infection of Plasmodium falciparum induces inhibitory antibodies against gametocyte development in human hosts.
SUMMARY: We identified naturally induced antibodies from malaria patients in Thailand and clarified the effect of the antibodies on gametocyte development. Fifty-nine percent of the Plasmodium falciparum-infected blood samples (17 of 29) fed to female Anopheles mosquitoes showed no oocyst infection. Seventeen percent of the samples (5 of 29) distorted the morphology and hampered the maturity of the gametocytes. A possible mechanism for the gametocyte inhibitory activity was shown by the binding of the plasma antibodies to live, immature, intraerythrocytic gametocytes during the incubation period. One hundred fifty-seven proteins specific to different gametocyte stages were explored to find the targets of the antisera that bound to the live gametocytes. However, no additional gametocyte transmission-blocking vaccine candidate was detected. Therefore, the development of alternative transmission-blocking vaccines in high-transmission areas should focus on the identification of more gametocyte antigens-inducing inhibitory antibodies that reduce gametocytemia
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