Category Archives: Technical Papers

Wet Deposition of Fission-Product Isotopes to North America from the Fukushima Dai-ichi Incident, March 2011

Posted on February 27, 2012 by Camille

2/27/2012 Abstract Using the infrastructure of the National Atmospheric Deposition Program (NADP), numerous measurements of radionuclide wet deposition over North America were made for 167 NADP sites before and after the Fukushima Dai-ichi Nuclear Power Station incident of March 12, … Continue reading →

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Technical note: Interpreting stable carbon isotopes in human tooth enamel: An examination of tissue spacings from South Africa

Posted on January 25, 2012 by Camille

1/25/2012 Abstract Stable isotope analysis of skeletal tissues is widely used in archeology and paleoanthropology to reconstruct diet. In material that is poorly preserved or very old, the tissue of choice is frequently tooth enamel, since this is less susceptible … Continue reading →

Posted in For the Professional, Isotope Research, Naturally Occurring, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment

Isotope effects in high-Tc cuprate superconductors as support for the bipolaron theory of superconductivity

Posted on January 24, 2012 by Camille

1/24/2012 Abstract We provide a unified parameter-free explanation of the observed oxygen-isotope effects on the critical temperature, the magnetic-field penetration depth and on the normal-state pseudogap for underdoped cuprate superconductors within the framework of the multi-(bi)polaron theory with strong Coulomb … Continue reading →

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Measurement of Hepatic Protein Fractional Synthetic Rate with Stable Isotope Labeling Technique in Thapsigargin Stressed HepG2 Cells

Posted on January 24, 2012 by Camille

1/24/2012 Abstract Severe burn-induced liver damage and dysfunction is associated with endoplasmic reticulum (ER) stress. ER stress has been shown to regulate global protein synthesis. In the current study, we induced ER stress in vitro and estimated the effect of … Continue reading →

Posted in For the Professional, Isotope Research, Naturally Occurring, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment

Activities of gamma-ray emitting isotopes in rainwater from Greater Sudbury, Canada following the Fukushima incident

Posted on January 24, 2012 by Camille

1/24/2012 Abstract We report the activity measured in rainwater samples collected in the Greater Sudbury area of eastern Canada on 3, 16, 20, and 26 April 2011. The samples were gamma-ray counted in a germanium detector and the isotopes 131I … Continue reading →

Posted in For the Professional, Industrial, Isotope Research, Radioisotopes, Reactor Produced, Research, Technical Papers, Uses for Isotopes | Leave a comment

Multi-isotope imaging mass spectrometry quantifies stem cell division and metabolism

Posted on January 19, 2012 by Camille

1/19/2012 Mass spectrometry with stable isotope labels has been seminal in discovering the dynamic state of living matter, but is limited to bulk tissues or cells. We developed multi-isotope imaging mass spectrometry (MIMS) that allowed us to view and measure … Continue reading →

Posted in For the Professional, For the Student, Isotope Research, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment

Stable isotopes to detect food-conditioned bears and to evaluate human-bear management

Posted on January 19, 2012 by Camille

1/19/2012 Abstract We used genetic and stable isotope analysis of hair from free-ranging black bears (Ursus americanus) in Yosemite National Park, California, USA to: 1) identify bears that consume human food, 2) estimate the diets of these bears, and 3) … Continue reading →

Posted in For the Professional, For the Student, Isotope Research, Naturally Occurring, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment

Stable carbon isotope composition of the halogenated monoterpene MHC-1 as found in fish and seaweed from different marine regions

Posted on January 19, 2012 by Camille

1/19/2012 Abstract Six samples of the red seaweed Plocamium cartilagineum (two both from Helgoland/Germany, Ireland, and the Antarctic) were analyzed by stable isotope analysis. Compound specific carbon isotope analysis by gas chromatography coupled with isotope ratio mass spectrometry (GC-IRMS) was used … Continue reading →

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Qualitative and Quantitative Analysis of Tumor Cell Metabolism via Stable Isotope Labeling Assisted Microfluidic Chip-Electrospray Ionization-Mass Spectrometry

Posted on January 10, 2012 by Camille

1/10/2012 Abstract In this work, a stable isotope labeling assisted microfluidic chip-electrospray ionization-mass spectrometry (SIL-Chip-ESI-MS) platform for qualitative and quantitative analysis of cell metabolism was developed. Microfluidic cell culture, drug-induced cell apoptosis analysis and cell metabolism measurements were performed simultaneously … Continue reading →

Posted in For the Professional, Isotope Research, Medical, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment

Estimating the Diets of Animals Using Stable Isotopes and a Comprehensive Bayesian Mixing Model

Posted on January 6, 2012 by Camille

1/6/2012 Abstract Using stable isotope mixing models (SIMMs) as a tool to investigate the foraging ecology of animals is gaining popularity among researchers. As a result, statistical methods are rapidly evolving and numerous models have been produced to estimate the … Continue reading →

Posted in For the Professional, Isotope Research, Naturally Occurring, Research, Stable Isotopes, Technical Papers, Uses for Isotopes | Leave a comment