Longitudinal leaky (LL) waves on YZ-LiNbO3 substrates [1, 2] feature many properties which are unusual for SAW and remain unexplained. Recent demonstration [3] of wideband low-loss filters operating on LL waves in the 2.5–5 GHz frequency range, manufactured with optical lithography, makes these waves of primary practical importance. Filters based on LL waves may become competitors against the F...

Ent-11α-hydroxy-15-oxo-kaur-16-en-19-oic-acid (5F), a compound isolated from Pteris semipinnata L. (PsL), inhibits cell proliferation and induces cell apoptosis in several cancer lines. We found that 5F induced apoptosis and G2 phase cell cycle arrest in the CNE-2Z nasopharyngeal carcinoma (NPC) cells, accompanied by a decrease of NF-κB expression. 5F suppressed the viability of CNE-2Z cells in...

Background and Objectives:Recent studies have shown that transradial coronary intervention (TRI) is feasible for percutaneous revascularization of chronic total occlusion (CTO). We investigated the feasibility and safety of using a 5-French catheter (5F) TRI for CTO and we compared it with that of using a 6F catheter TRI. Subjects and Methods:One hundred fifteen patients (117 lesions) who under...

BACKGROUND Ent-11-hydroxy-15-oxo-kaur-16-en-19-oic acid (5F) is known to exhibit antitumor activity, but its mechanism is not completely understood. 5F has not been tested in laryngeal cancer. METHODS Two laryngeal cancer cell lines were treated with 5F. Cell death was analyzed by MTT [3-(4,5-dimethylthiozol-2-yl)-2,5-diphenyltetrazolium bromide] and Annexin V assay. Nuclear factor kappa beta...

A candidate antitumor agent, 2-(4-amino-3-methylphenyl)-5-fluorobenzothiazole (5F-203), was empirically discovered through the National Cancer Institute's Anticancer Drug Screen from a unique growth inhibitory-response profile, indicating a novel mechanism of action. 5F-203 activates the CYP1 family of cytochrome P450, involving aryl hydrocarbon receptor translocation into the nucleus. To chara...

Lead (Pb) has been shown to perturb cellular calcium (Ca) homeostasis, altering sizes and flux rates of cellular pools of exchangeable Ca and impairing Ca-mediated cell processes. To date, however, a direct effect of Pb on intracellular-free Ca2+ has not yet been demonstrated. Heavy metals bind to the commonly used fluorescent Ca ion indicators with greater affinity than does Ca and thereby int...