Wood ant queen has no egg-laying monopoly
...nt species of the genus Formica, and revealed wide spread reproductive endeavours by workers. For example, in species such as Formica cinerea, Formica pratensis, and Formica truncorum approximately one in five workers is fully equipped to lay eggs. Furthermore, genetic analysis of egg parentage showed that ...Damon Runyon names new class of rising stars in cancer research
...ation of the cellular scaffold impacts cancer cell spread or metastasis. Melissa R. Junttila, PhD, with her sponsor Gerard I. Evan, PhD, at the University of California, San Francisco, California, is designing new mouse models to challenge long standing dogma about how p53, the most commonly mutated gene i...Sentinel lymph node biopsy is associated with breast cancer rates
...ary lymph node to which cancer cells are likely to spread from a tumor. Sentinel lymph node biopsies often detect small numbers of tumor cells that do not necessarily indicate that the cancer has spread. While the use of [sentinel lymph node biopsy] in community practice continues to increase, it is expec...Weill Cornell team identifies potential new cancer drug target
...Cornell, and her team. Experts know that cancers spread in two separate ways -- by the uncontrolled proliferation of cells, and by their refusal to undergo normal, healthy, programmed cell death, or "apoptosis." In many cancers, dysfunction in a biochemical cascade called the NF-kappa B pathway causes t...Revealed -- Mosquito genes that could be controlling the spread of killer viruses
... immune systems in other mosquitoes to control the spread of the disease....K-State biochemist contributes to article in Science magazine
...and proteins to study in their efforts to stop the spread of diseases like malaria. The research will benefit scientists like Kristin Michel, also an author of the paper appearing in Science who will join K-State this fall as an assistant professor of biology. Kanost said Michel will be able to build furthe...MU maps course for improving pre-college science education
...za virus and how movement of the avian vectors and spread of the virus are monitored at state, regional and global levels. In the Mapping Cell Fate portion, students will learn how cells get instructions to maintain or change their properties, or their fates, and what health problems occur when these instru...International team to honor 30th anniversary of deep-sea vent discovery in Galpagos
...e marks the area where the Earth's tectonic plates spread apart and new crust forms from hot lava rising from the mantle. In and around the ridge are hydrothermal vents, volcanic structures that look like chimneys and gush super-hot, mineral-rich fluids. About 100 vent sites have so far been discovered, G...CU study reveals why starling females cheat
...widely to produce as many offspring as possible to spread their genes, the reasons behind female infidelity appear more complex. With this study and this species, "we can break down the reasons why superb starling females are not faithful to their mates and see that they have different extra-pair mating str...Researchers demonstrate way to control tree height
... that this trait might be used to help control the spread of exotic and potentially invasive trees that are commonly sold by nurseries. The initial studies were done with poplar, Strauss said. Similar results should be possible in any tree species, but are limited by the lack of research into gene transfe...Promising protein may prevent eye damage in premature babies
...e levels of this protein are normal, blood vessels spread abnormally throughout the retina. But if we can increase the protein to more normal levels in premature babies, it should result in healthier blood vessel growth. The protein insulin-like growth factor binding protein-3, or IGFBP-3 was thought to...How 'memory' T cells curb the spread of viruses throughout the body
...also are the sites where a major fight against the spread of an invading virus occurs. After becoming sick...n may take several days while viruses multiply and spread quicker. Sigals work shows the CD8 T cells can protect from viral disease without the need to migra...The kapok connection -- Study explains rainforest similarities
...l by wind or ocean currents explains how the trees spread from South America to Africa. He plans to continue investigating the role of oceanic dispersal to see if the same is true for other species and for entire plant communities. "This tree has become locally extinct in parts of the Peruvian Amazon as a...In nature, proteins sweep up nanoparticles
...t the nanoscale. Regardless, the process stops the spread of metal nanoparticles in natural environments, which is reason enough to explore it further. If we understand what causes nanoparticles to aggregate, we have the potential to control their mobility in the subsurface by adding constituents that dri...Small, self-controlled planes combine plant pathology and engineering
... Our work has important implications for the rapid spread of invasive plant and animal pathogens in the Unit...hing effective quarantine measures, preventing the spread of plant disease, and mitigating potentially damaging events targeted at our nations agriculture and...Salvage logging, replanting increased biscuit fire severity
...t the effectiveness of fuel breaks for slowing the spread of severe fires. ...Migration alert -- How tumor cells home in on the lymphatic system
...sis therapies. Scientists know that tumor cells spread via the lymphatic system, but they dont understand the details of how this deadly migration takes place. In the June 2007 issue of the journal Cancer Cell, EPFL Professor Melody Swartz and postdoctoral researcher Jacqueline Shields provide an explana...Minister Lunn announces $39.6M for next phase of mountain pine beetle response
...of the province and local communities to fight the spread of the beetle, protect communities and address the...anada (NRCan) this year for efforts to control the spread of the beetle; a further $6.5 million from NRCan this year for actions to protect communities, ...Now playing -- Cell migration LIVE!
...ategies for controlling both normal growth and the spread of cancer, processes that depend on the programmed, organized movement of cells across space The stars of our live show are a cluster of fruit fly cells that literally crawl across the length of an egg chamber while it is maturing, says Denise Mon...New collaborative research reveals chimpanzees can sustain multiple-tradition cultures
... In all, the researchers observed 10 traditions spread throughout the chimpanzee groups at the Yerkes Research Center and the University of Texas. This study nicely summarizes our collaborative work of the last five years, showing we can artificially introduce cultures in chimpanzees, which supports t...