We demonstrate a new device concept for wavelength division demultiplexing based on
planar photonic crystal waveguides. The filtering of wavelength channels is realized by
shifting the cutoff frequency of the fundamental photonic bandgap mode in consecutive …

Canadian public inquiry into botched estrogen receptor tests has shaken public confidence
in cancer care and raised questions about the oversight of laboratories that perform crucial
tests that often determine which treatment breast cancer patients receive. The public inquiry …

As new antibiotics come on the market (upward arrows), resistance develops (downward
arrows), but the drugs continue to be used. The growing collection of antibiotics over time is offset
by the increasing resistance … Over the past decade, many European countries have gained …

Improving outcomes for advanced gastric cancer patients has been frustratingly difficult to
achieve. Despite many trials, no chemotherapy regimen has provided a median survival
beyond 1 year. That's why many were stunned when results from the first randomized …

populations. The Health Resources and Services Administration will administer $25 million
in pilot funds authorized by the Patient Navigator, Outreach, and Chronic Disease
Prevention Act of 2005, signed by President Bush in June 2005. And the National Cancer …

These small 20-to 23-nucleotide noncoding sequences, dubbed microRNA (miRNA), help
regulate protein production in the cell by binding to a complementary site in protein-coding
messenger RNA (mRNA), effectively preventing it from being translated, and, in some cases …

C ancer patients know that chemobrain is real. The nearly ubiquitous experience of foggy
thinking immediately after chemotherapy treatment has even inspired T-shirts and buttons
emblazoned with “My Name is Chemo Brain.” For some cancer survivors, the cognitive …

Ph. D., Carlos Sonnenschein, MD, and their colleagues reported that the known chemical
carcinogen, N-nitrosomethylurea (NMU), initiates neoplastic transformation by targeting the
tissue stroma, not the epithelial cells that typically develop into tumors. The scientists wanted …

The discovery of RNA interference (RNAi), the endogenous regulatory system that employs
small double-stranded RNA molecules to silence gene expression, has generated
enthusiasm for using small interfering RNA–based molecules (siRNA) to treat a variety of …

The annual ovarian cycle in the toad Bufo bufo bufo (L.) represents a functional pattern that
has been observed in many anuran amphibians of temperate zones. In the mesic climates
that predominate in the temperate zones of the higher latitudes, temperature and day length …