A report obtained by The Lancet Oncology details a precipitous decline in US Veteran Affairs (VA) reporting of new cancer cases to California registries beginning in late 2004—from 3000 cases in 2003 to almost none by the end of 2005. Inconsistent and incomplete case reporting by VA Hospitals are also long-standing problems for other US states and could mean that cancer rates appear artificially low across the USA.
The omission of veteran data would introduce “uncorrectable bias” in epidemiological studies, and research from the mid-2000s will not be correct, according to Dennis Deapen of the Los Angeles Cancer Surveillance Program. Furthermore, it will hamper efforts to identify quality-of-care issues for VA patients with cancer.
A draft version of the VA policy directive on cancer reporting was obtained by The Lancet Oncology which revealed that the directive will formalise the prohibitions on sharing veteran cancer data between states and forbid the “re-lease” of veteran data to researchers whose studies have not been approved by the VA. “This could become a serious issue for the validity of epidemiological studies” according to Elizabeth Ward of the American Cancer Society. The VA has since posted the final directive on its website.
Tony Kirby | alfa
Finnish research group discovers a new immune system regulator
23.02.2018 | University of Turku
Minimising risks of transplants
22.02.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
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