Classification of beta-lactamases: groups 1, 2a, 2b, and 2b'
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The 1,2,3-tridehydrobenzene triradical: 2B or not 2B? The answer is 2A!
The molecular and electronic structure of 1,2,3-tridehydrobenzene was investigated by a variety of computational methods. The two lowest electronic states of the triradical are the (2)B(2) and (2)A(1) doublet states characterized by different interactions of the unpaired electrons. Vertically, the two states are well separated in energy-by 4.9 and 1.4 eV, respectively. However, due to different...
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Cerebellar parallel fiber (PF)-Purkinje cell (PC) synapses can undergo postsynaptically expressed long-term depression (LTD) or long-term potentiation (LTP). PF-LTD induction requires the coactivity of the PF and CF (climbing fiber) inputs to PCs and a concomitant calcium transient and activation of protein kinase C (PKC). PF-LTP can be induced by PF activity alone and requires a lower calcium ...
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Hypothesis: Extracorporeal high-intensity focused ultrasound (HIFU) would be used as a non-invasive local ablation for the treatment of patients with various kinds of solid tumor. Methods: A total of 1038 patients with solid tumors underwent HIFU ablation in ten Chinese hospitals. The tumors included primary and metastatic liver cancer, malignant bone tumors, breast cancer, soft tissue sarcomas...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1989
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.33.3.264