Tag: "cloaking" at biology news
New way to catch cancer's spread, rapid 3-D retinal imaging, more at CLEO/QELS 2007
...on, such as efforts to create a "perfect lens" and cloaking
devices, as well as progress on negative refraction at optical frequencies. Alan Heeger of the University of California at Santa Barbara and recipient of the 2000 Nobel Prize in Chemistry will present "Plastic Electronics and Opto-Electronics." Pl...
Largest physics meeting of the year, in Denver
...T AT THE MEETING making things invisible through cloaking
(papers U44.11, W38.1, X38.3) counting clouds (V7.3) diamonoids (U27.14) glial cell pattern formation in brain tumors (D34.5) colloidal peanuts (D29.6) armored bubbles (B6.3) digital microfluidics (L30.1) ...
Movie spies on malaria parasite's sneaky behavior
...they further protect themselves with a biochemical cloaking
device. They prevent the dying liver cell from broadcasting a chemical "death signal" that would normally tell a macrophage to ingest it. "The parasite did not evolve this complex system for nothing," Mnard commented. "It is probably very importan...
Scientists seek to unwrap the sweet mystery of the sugar coat on bacteria
...ge very quickly during the course of an infection, cloaking
the bacteria from the immune system of their host. Previous techniques for studying the sugars were too slow to catch these rapid changes. "There's a growing recognition of the importance of carbohydrates on bacterial cell surfaces," says Dr. Lara ...
Scientists lift malaria's cloak of invisibility
... have determined how P. falciparum can turn on one cloaking
gene and keep dozens of others silent until each i...te's survival. A DNA sequence near the start of a cloaking
gene, known as the gene's promoter, not only turns up production of its protein, but also keeps all ...
Chlamydia parasite lives off our fat
...where Chlamydia escapes recognition by the host by cloaking
itself in these fat-rich structures." Understanding host lipid transport by Chlamydiae may have further implication for chronic infections, the researchers say. For example, lipid-rich macrophages ("foam cells") are a symptom in chlamydial pneumonia...
In a tiny squid, bacterial toxin governs organ development
...ht-producing organ that acts as a sort of "Klingon cloaking
device," mimicking starlight to confuse hungry predators lurking in the depths. In humans, the same toxic molecule, produced by different species of bacteria, causes massive tissue damage in the lungs in the case of whooping cough, and in the fallopi...