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Color barcode-based visible light communication (VLC) over screen-camera links has attracted great research interest in recent years due to its many desirable properties, including free of charge, free of interference, free of complex network configuration and well-controlled communication security. To achieve high-throughput barcode streaming, previous systems separately address design challenges such as image blur, imperfect frame synchronization and error correction etc., without being investigated as an interrelated whole. This does not fully exploit the capacity of color barcode streaming, and these solutions all have their own limitations from a practical perspective.This paper proposes RainBar, a new and improved color barcode-based visual communication system, which features a carefully-designed high-capacity barcode layout design to allow flexible frame synchronization and accurate code extraction. A progressive code locator detection and localization scheme and a robust color recognition scheme are proposed to enhance system robustness and hence the decoding rate under various working conditions. An extensive experimental study is presented to demonstrate the effectiveness and flexibility of RainBar. Results on Android smartphones show that our system achieves higher average throughput than previous systems, under various working environments.Index Terms-Visible light communication, color barcode, screen-camera link, robustness, smartphones * Corresponding author. charge and interference. And most importantly, the directionality and extremely short visible range can guarantee wellcontrolled communication security without troublesome link setup or authentication. Such advantages enable wireless users to automatically initiate and set up communication channels, enjoying quick and convenient information sharing.Motivated by the idea of detecting colors for high-rate information transfer, researchers began to investigate speciallydesigned 2D color barcodes [7]-[9], based on which much more information (other than only web links or contact information) can be transmitted in a video of barcodes over screencamera links. To achieve high throughput barcode streaming, previous approaches aimed at increasing the image quality to enhance the per-frame capacity, or exploiting error correction codes to improve transmission reliability, or ameliorating frame synchronization to increase the frame rate, making the barcode-based VLC systems more and more practical.However, previous solutions all have their own and limitations. In [7], COBRA set the screen's display rate to be exact half of the camera's capture rate, which underutilizes the transmitter's capability and therefore limits the communication throughput. Meanwhile, the design of timing reference blocks cannot accurately localize blocks in code area since the captured images may suffer from severe perspective distortion, which affects the decoding accuracy. In [9], the authors proposed a Tri-level error correction scheme to recover lost blocks and frames to furt...

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TEF3-1 (transcriptional enhancer factor 3 isoform 1), also known as TEAD4 (TEA domain family member 4), was recently revealed as an oncogenic character in cancer development. However, the underlying molecular pathogenic mechanisms remain undefined. In this paper, we investigated nuclear TEF3-1 could promote G1/S transition in HUVECs, and the expression levels of cyclins and CDKs were upregulated. Additionally, if TEF3-1 was knocked down, the expression of cyclins and CDKs was downregulated while the expression of P21, a negative regulator of the cell cycle, was upregulated. A microarray analysis also confirmed that TEF3-1 overexpression upregulates genes that are related to cell cycle progression and the promotion of angiogenesis. Moreover, we observed that nuclear TEF3-1 was highly expressed during the formation of vascular structures in gastric cancer (GC). Finally, tumor xenograft experiments indicated that, when TEF3-1 was knocked down, tumor growth and angiogenesis were also suppressed. Taken together, these results demonstrate for the first time that TEF3-1 localization to the nucleus stimulates the cell cycle progression in HUVECs and specifically contributes to tumor angiogenesis. Nuclear TEF3-1 in HUVECs may serve as an oncogenic biomarker, and the suppression of TEF3-1 may be a potential target in anti-tumor therapy.

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Rational scheme of initial allocation of carbon emission rights is the key to the smooth running of carbon trading market. Based on the traditional carbon emission rights allocation mode, this paper combining China’s actual development of power industry and characteristics of the distribution of generation resources, put forward the impact of initial allocation of carbon emission rights on power generation replacement analysis model. By studying the impact of initial allocation of carbon emission rights on power generation rights trade, and comparing the different results of power generation rights trade, respectively, based on installed capacity allocation and power generation allocation, it is found that the mode that based on power generation allocation can better promote the power generation rights trade.