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Apoptotic cells in animals are engulfed by phagocytic cells and subsequently degraded inside phagosomes. To study the mechanisms controlling the degradation of apoptotic cells, we developed time-lapse imaging protocols in developing Caenorhabditis elegans embryos and established the temporal order of multiple events during engulfment and phagosome(More)
Phosphatidylinositol 3-phosphate (PtdIns(3)P) is a signaling molecule important for many membrane trafficking events, including phagosome maturation. The level of PtdIns(3)P on phagosomes oscillates in two waves during phagosome maturation. However, the physiological significance of such oscillation remains unknown. Currently, the Class III PI 3-kinase(More)
Apoptotic cells are swiftly engulfed by phagocytes and degraded inside phagosomes. Phagosome maturation requires phosphatidylinositol 3-phosphate [PtdIns(3)P], yet how PtdIns(3)P triggers phagosome maturation remains largely unknown. Through a genomewide PtdIns(3)P effector screen in the nematode Caenorhabditis elegans , we identified LST-4/SNX9, SNX-1, and(More)
object detection is very important for video surveillance. In this paper, we present a new real time motion detection algorithm that is based on the integration of accumulative optical flow and double background filtering method (long-term background and short-term background) to achieve better performance. The accumulative optical flow method is used to(More)
This paper presents the design and simulation of the Sierpinski carpet fractal antenna in third iteration. Fractals have no characteristic size, and are ordinarily made up of many copies of themselves at different scales. These special properties of fractals have been applied in order to create a new group of antenna designs that are multi-band and compact(More)
6LoWPAN protocol has been introduced to connect Wireless Sensor Network with the Internet. LoWPAN_IPHC is an up-to-date IPv6 packet header compression method. But there has been little consideration on the maintenance of IPHC CONTEXT TABLE. This paper analyzes this situation and presents a Dynamic 6LowPAN Context Table Maintaining algorithm to solve this(More)