Robust and efficient video/image transmission

The Internet has become a primary medium for information transmission. The unreliability of channel conditions, limited channel bandwidth and explosive growth of information transmission requests, however, hinder its further development. Hence, research on robust and efficient delivery of video/image content is demanding nowadays. Three aspects of this task, error burst correction, efficient rate allocation and random error protection are investigated in this dissertation. A novel technique, called successive packing, is proposed for combating multi-dimensional (M-D) bursts of errors. A new concept of basis interleaving array is introduced. By combining different basis arrays, effective M-D interleaving can be realized. It has been shown that this algorithm can be implemented only once and yet optimal for a set of error bursts having different sizes for a given two-dimensional (2-D) array. To adapt to variable channel conditions, a novel rate allocation technique is proposed for FineGranular Scalability (FGS) coded video, in which real data based rate-distortion modeling is developed, constant quality constraint is adopted and sliding window approach is proposed to adapt to the variable channel conditions. By using the proposed technique, constant quality is realized among frames by solving a set of linear functions. Thus, significant computational simplification is achieved compared with the state-of-the-art techniques. The reduction of the overall distortion is obtained at the same time. To combat the random error during the transmission, an unequal error protection (UEP) method and a robust error-concealment strategy are proposed for scalable coded video bitstreams

Effect of bioactive whey protein-supplemented paclitaxel on nutritional status and tumor growth in a mouse model of subcutaneously transplanted triple-negative breast cancer

Purpose: To study the effect of bioactive whey protein-supplemented paclitaxel on nutritional status and tumor growth in a mouse model of subcutaneously transplanted triple negative breast cancer (TNBC).Methods: Eighty (80) mice were equally assigned to chemotherapy and control groups. The chemotherapy-treated mice received bioactive whey protein-supplemented paclitaxel chemotherapy, while the control group received paclitaxel chemotherapy only. Differences in body weight, glutathione (GSH) contents in tumor tissue and blood, tumor volume and extent of tumor suppression, serum levels of CA153 and TSGF, and survival time were determined and compared between the two groups.Results: After 4 weeks, tumor tissue GSH was markedly lower in chemotherapy-exposed mice than in control mice, while blood GSH content in the chemotherapy group was significantly higher than that of control group (p < 0.05). After drug administration, volume of transplanted tumor and tumor weight were significantly lower in chemotherapy mice than in control mice, while levels of CA153 and TSGF in serum were down-regulated in chemotherapy-exposed mice, relative to control mice. Moreover, the mean survival time of mice in chemotherapy group was significantly longer than that in control group (p < 0.05).Conclusion: Bioactive whey protein-supplemented paclitaxel improves the nutritional status of mice, slows down weight loss, lowers the levels of tumor growth factors, suppresses tumor growth, prolongs survival period, and improves prognosis of subcutaneously transplanted triple negative breast cancer in mice. This therapeutic strategy can potentially be used. for the management of breast cancer but this requires prior successful clinical trial

2-Phenyl-1H-1,3,7,8-tetra­azacyclo­penta­[l]phenanthrene

There are two molecules in the asymmetric unit of the title compound, C19H12N4. One is almost planar [dihedral angle between the fused-ring system and the phenyl ring = 2.16 (13)°] and one is somewhat twisted [dihedral angle = 13.30 (14)°]. In the crystal, the molecules are linked by N—H⋯N hydrogen bonds to result in chains

Research on Listed Companies Clarification Announcements’ Stock Prices Reaction and its Influencing Factors

Using text analysis, this paper analyzes the textual features of clarification announcements released in the stock market. According to behavioral finance, cognitive psychology, event study and multivariate statistical methods are used to depict the characteristics of texts such as readability, descriptive approach, and structure. From the perspective of the reaction of stock prices, this paper explores whether the listed companies’ clarification announcements are effective and what influences their effectiveness, using investor attention as a moderating factor

N-(1-Naphth­yl)acetoacetamide

The title compound, C14H13NO2, exists in the keto form. An N—H⋯O hydrogen bond helps to establish the packing