[Automatic ECG analysis system based on TMS320F206].

An automatic ECG analysis system based on DSP is introduced in this paper. It can fulfill the functions of signal regulation, adaptive filtering, QRS waves positioning, and automatically recognize more than 10 kinds of arrhythmia and report alarm. TI DSP product--TMS320F206 is applied in this system to accomplish the adaptive filtering and automatic diagnosis of arrhythmia for the need of real time signal processing.

Enantiomeric interpenetrating 3D nets with chiral silver helicates.

A new enantiomeric interpenetrating 3D nets with chiral helical coordination silver(i) polymer was achieved via self-assembly using the new ligand modular approach, in which the special helical conformation of the ligand provided the opportunity to translate chirality from one metal center to others.

Fatty acid ethyl esters: markers of alcohol abuse and alcoholism.

Chronic alcoholism, which is associated with hepatic, pancreatic, and myocardial diseases, is one of the major health problems in the United States with high morbidity and mortality. Many individuals who abuse alcohol chronically die even before reaching the clinical stage of the disease. Reliable biomarkers of the diseases induced by chronic alcohol abuse, as well as for alcoholism, currently are not available.

PWT-458, a novel pegylated-17-hydroxywortmannin, inhibits phosphatidylinositol 3-kinase signaling and suppresses growth of solid tumors.

Deregulated phosphatidylinositol 3-kinase (PI3K) signaling pathway is widely implicated in tumor growth and resistance to chemotherapy. While a strong rationale exists for pharmacological targeting of PI3K, only a few proof-of-principle in vivo efficacy studies are currently available. PWT-458, pegylated-17-hydroxywortmannin, is a novel and highly potent inhibitor of PI3K in animal models.

Imidazolidinium-based robust crypt with unique selectivity for fluoride anion.

A new imidazolidinium based receptor exhibiting unique affinity and high selectivity for fluoride anion through steric requirements and the cooperativity of multiple intramolecular binding, has been designed, synthesized and structurally characterized.

Octanuclear metallocyclic Ni4Fc4 compound: synthesis, crystal structure, and electrochemical sensing for Mg2+.

New, neutral octanuclearmacrocyclic compound Ni(4)Fc(4) was achieved via self-assembly from Ni(BF(4))(2) and a ferrocene-containing bis-tridentate ligand. The compound exhibits a channeled structure with cavities inside and senses the Mg(2+) electrochemically in the solid state.

A novel pyramidal multiple alkali metal cluster [K3(H2O)]3+ stabilized within a capsule containing 16-nitrogen donors.

A novel multiple alkali metal cluster K3(H2O)]3+ interior within a high-symmetry cubic capsule containing 16-nitrogen donors is achieved via self-assembly from twenty components.

[Application of alpha-cyanoacrylate medical adhesive in fixation of intratemporal facial nerve within chitin chamber].

Objective: To study the feasibility of alpha-cyanoacrylate medical adhesive in fixation of intratemporal facial nerve when nerve was repaired within chitin chamber, and to investigate the nerve regeneration.

Methods: Nerve defect of 6 mm was made in left intratemporal facial nerves of 48 rabbits. All the defects were bridged with chitin chamber and were fixed by alpha-cyanoacrylate medical adhesive, surgical suture and natural union.

Self-assembly assisted polymerization (SAAP): approaching long multi-block copolymers with an ordered chain sequence and controllable block length.

A combination of polymer physics and synthetic chemistry has enabled us to develop self-assembly assisted polymerization (SAAP), leading to the preparation of long multi-block copolymers with an ordered chain sequence and controllable block lengths.

Toxin Production by Clostridium botulinum Type E in Packaged Channel Catfish.

Channel catfish were inoculated with 3 to 4 log spores/g of a mixed pool of four strains of C. botulinum type E (Beluga, Minnesota, G-5, and 070) and were packaged with an oxygen-permeable overwrap, in an oxygen-barrier bag with a modified atmosphere of CO-N (80:20) or in a master bag with the same modified atmosphere. Packaged fish were stored at either 4°C and sampled at intervals over 30 days or at 10°C and sampled at intervals over 12 days.