The role of tumor cell membrane gangliosides in tumor formation was probed using a series of cloned murine AKR lymphoma cell lines. Tumor formation was directly related to high expression and shedding of membrane gangliosides. In vivo, as little as 1 pmol of purified total gangliosides of highly tumorigenic cells, injected intradermally with poorly tumorigenic cells (which lacked and did not sh...

later risk of breast cancer. A companion project begun in 2008, the Two Sister Study, focusing only on women younger than 50 years with breast cancer, has already yielded preliminary data on the use of fertility drugs and early-onset breast cancer. However, its fi ndings still await publication. Because the women in the Two Sister Study have been diagnosed with cancer, " we can do case – contro...

D emand response, a cornerstone of smart-grid technology, lets consumers participate directly in energy markets by limiting their energy use during periods of emergency or peak demand. In a direct-control demand-response approach, an electricity service provider (ESP) offers consumers discounts or other incentives if they agree to let the ESP send load-shed instructions (LSIs) to specified appl...

Dental pulp stem cells (DPSCs) from permanent teeth and stem cells from human exfoliated deciduous teeth (SHED) have attracted tremendous interest recently by playing a major role in tissue engineering and regenerative medicine. However, since stem cell technology is still in its infancy, interdisciplinary cooperation between medicine, basic biological research, nanotechnology and materials sci...

Australian dinosaurs have played a rare but controversial role in the debate surrounding the effect of Gondwanan break-up on Cretaceous dinosaur distribution. Major spatiotemporal gaps in the Gondwanan Cretaceous fossil record, coupled with taxon incompleteness, have hindered research on this effect, especially in Australia. Here we report on two new sauropod specimens from the early Late Creta...

The South American continent is composed of several biogeographical regions harbouring the highest biodiversity on the globe, encompassing five of the world's biodiversity 'hot spots'. Nonetheless, the patterns and processes responsible for shaping its astonishing species diversity are largely unknown. Here, we present a review of current South American phylogeographical knowledge based on publ...

To isolate high-quality human postnatal stem cells from accessible resources is an important goal for stem-cell research. In this study we found that exfoliated human deciduous tooth contains multipotent stem cells [stem cells from human exfoliated deciduous teeth (SHED)]. SHED were identified to be a population of highly proliferative, clonogenic cells capable of differentiating into a variety...

The classical theory of retarded electromagnetic potentials is usually attributed to Liénard (1898) and Wiechert (1900), who developed a mathematical model based on Euclidean geometry and general signal retardation analogous to that occurring with light propagation. The Liénard-Wiechert model represents the amalgamation of dual concepts: the discrete particle (the source) and the continuous wav...

In order to reinforce the measure of vegetable shed’s safety, the S3C44B0X is taken as the main processor chip. The embedded hardware platform is built with a few outer-ring chips, and the network server is structured under the Linux embedded environment, and MPEG4 compression and real time transmission are carried on. The experiment indicates that the video monitoring system can guarantee good...

It is a most commonly accepted hypothesis that life originated from inanimate matter, somehow being a synthetic product of organic aggregates, and as such, a result of some sort of prebiotic synthetic biology. In the past decades, the newly formed scientific discipline of synthetic biology has set ambitious goals by pursuing the complete design and production of genetic circuits, entire genomes...