This paper performs issues relative to modeling of VBR MPEG coded video sources over ATM B-ISDN networks. Firstly, we analyse the statistical characteristics of the three types of frames, which the MPEG algorithm generates, and we study their autocovariance and probability density functions. Based on the data analysis, we propose two new source models which approximate both the statistical prop...

Poly(L-lactide) (PLLA), a versatile biodegradable polymer, is one of the most commonly-used materials for tissue engineering applications. To improve cell affinity for PLLA, poly(ethylene glycol) (PEG) was used to develop diblock copolymers. Human bone marrow stromal cells (hBMSCs) were cultured on MPEG-b-PLLA copolymer films to determine the effects of modification on the attachment and prolif...

To develop a biodegradable polymer possessing elasticity and flexibility, we synthesized MPEG-b-(PCL-co-PLA) copolymers (PCxLyA), which display specific rates of flexibility and elasticity. We synthesize the PCxLyA copolymers by ring-opening polymerization of ε-caprolactone and l-lactide. PCxLyA copolymers of various compositions were synthesized with 500,000 molecular weight. The PCxLyA copoly...

Zusammenfassung Bewegungskompensierte Prädiktion mit Hilfe mehrerer vergangener oder zukünftiger Referenzbilder, so genannte Multiframe-Prädiktion, kann die Kompression von Videosignalen verbessern. Multiframe-Prädiktion lässt sich in Verbindung mit den von MPEG bekannten P-Bildern, oder auch – durch Multihypothesen-Prädiktion – in Verbindung mit B-Bildern verwenden. Dieser Aufsatz fasst die ak...

Primary cardiac lymphoma (PCL) is a rare entity that leads to fatal symptoms such as serious arrhythmia. The present case was an 80-year-old female with severe dyspnea caused by 30 bpm bradycardia. Computed tomography revealed a tumor invading to the right inferior myocardium. A computed tomographic coronary angiography (CTCA) study revealed the right coronary artery penetrating the tumor with ...

Theorists commonly assume that true or primary psychopathic individuals experience little anxiety or neurotic conflict. This study examined the relationship between psychopathy and anxiety in 104 Caucasian and 113 African American incarcerated men using the Psychopathy Checklist--Revised (PCL-R; R. D. Hare, 1991) and multiple self-report measures to tap diverse interpretations of the anxiety co...

Magnetic cellulose nanocrystals (MCNCs) were prepared and used as an enzyme support for immobilization of Pseudomonas cepacialipase (PCL). PCL was successfully immobilized onto MCNCs (PCL@MCNC) by a precipitation-cross-linking method. The resulting PCL@MCNC with a nanoscale size had high enzyme loading (82.2 mg enzyme/g) and activity recovery (95.9%). Compared with free PCL, PCL@MCNC exhibited ...