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Optical image of four tungsten transition-edge sensors for near-infrared single-photon detection. Image credit: NIST. A transition-edge sensor (TES) is a type of cryogenic energy sensor or cryogenic particle detector that exploits the strongly temperature-dependent resistance of the superconducting phase transition.
M2-PK, as measured in feces, is a potential tumor marker for colorectal cancer.When measured in feces with a cutoff value of 4 U/ml, its sensitivity has been estimated to be 85% (with a 95% confidence interval of 65 to 96%) for colon cancer and 56% (confidence interval 41–74%) for rectal cancer. [1]
The gold standard of early detection of colon polyp/cancer is the invasive colonoscopy, but with high expense about $557, while tumor marker M2-PK Test expense only about $15-$25. The invasive colonoscopy makes acceptance of it low among patients, so relatively cheap non-invasive M2-PK Test is a good choice for detection early polyp/cancer. [2]
Marker assisted selection or marker aided selection (MAS) is an indirect selection process where a trait of interest is selected based on a marker (morphological, biochemical or DNA/RNA variation) linked to a trait of interest (e.g. productivity, disease resistance, abiotic stress tolerance, and quality), rather than on the trait itself.
U.S. Army Public Health Center Toxicology Lab technician assessing samples. Toxicology testing, also known as safety assessment, or toxicity testing, is the process of determining the degree to which a substance of interest negatively impacts the normal biological functions of an organism, given a certain exposure duration, route of exposure, and substance concentration.
For batteries, guidance on test requirements is in RCC-Doc-319-99. Note: Surveillance Testing is a periodic repeat of the Acceptance Testing using trending or accelerated aging to authorize shelf life extensions. Trending involves frequent sampling and comparison to previous results to predict degradation.
Questions that can be answered by biomarkers. A cancer biomarker refers to a substance or process that is indicative of the presence of cancer in the body. A biomarker may be a molecule secreted by a tumor or a specific response of the body to the presence of cancer.
The results of this trial demonstrated a stable disease for 10/18 patients ( 56%) and had no immunogenic response. M5A-DOTA was coupled with 225-Ac , which is an alpa emitter, and an in vivo study was performed where cytokine therapy was combined with a-therapy. [30] The result of the study revealed the benefit of combining these two treamtents.