In this paper, extract of papaya leaves are used as a natural dye and combined by variations of solvent concentration applied on DSSC (Dye-Sensitized Solar Cell). Indonesian geographic located on the equator line occasions the magnitude of the potential to develop organic solar cells made from extracts of chlorophyll as a substitute for inorganic materials or synthetic dye on DSSC material. Dye...

introduction: this in vitro study aims to evaluate the coronal and apical sealing ability of gutta-percha (gp) root filling used with either mineral trioxide aggregate (mta), new endodontic cement (nec) or ah26 as filler/sealers. materials and methods: forty eight single-rooted extracted teeth were selected, decoronated and then instrumented. samples were randomly divided into three experimenta...

introduction: this study compared apical dye penetration using lateral condensation technique (lc) and lc technique with a reciprocal handpiece (mechanical lateral condensation or mlc) as a new method. materials and methods: forty-eight human extracted straight canine teeth were used. after crown amputation, the teeth were randomly divided into four experimental groups of 10 teeth each and two ...

introduction: the purpose of this study was to compare the apical sealing ability of lateral and vertical compaction techniques following immediate and delayed post space preparation. materials and methods: seventy-four distal and palatal roots of human extracted molars were instrumented and randomly divided into 4 experimental groups (n=15), two experimental control groups (n=5), and two posit...

JCB • VOLUME 212 • NUMBER 5 • 2016 484 The microtubules of the mitotic spindle apparatus emanate from, and are organized by, the centrosomes: nonmembrane-bound organelles composed of centrioles embedded in a cloud of pericentriolar material (PCM) that persist throughout the cell cycle. In some cell types, including fibroblasts and many cultured cell lines, centrosomes retain their microtubule-o...

The revival of Interest In Automatic Programming Is considered. The research Is divided Into direct efforts and theoretical developments and the successes and prospects of each are described. Note: This paper was solicited for the Communications of the ACM Anniversary Issue, August 1972. Comments received before May 1 may Influence the final version. This research was supported In part by the N...

Of the first 128 patients to receive either heart or heart and lung transplants at Papworth Hospital, four developed Toxoplasma gondii infections acquired from the donor heart and two died. Six patients had passively acquired T gondii antibody as a result of blood transfusions around the time of transplantation. Eight patients developed antibodies against T gondii, which were detectable by chan...