radio-isotopic dating Be-7 Articles

  • Changes in European precipitation seasonality and in drought frequencies revealed by a four-century-long tree-ring isotopic record from Brittany, western France

    A new paleoclimatic reconstruction for western France is obtained from tree-ring cellulose stable isotopes. Living trees from Rennes Forest and beams from two ancient buildings in Rennes city have been combined to cover the past four centuries with a gap from 1730 to 1750. The cellulose 13C reflects the progressive changes in atmospheric CO2 isotopic composition. The combined 13C and 18O ...


    By Springer

  • Ukas accredited laboratory manages its own configurations of Matrix Gemini LIMS case study

    By working closely with Autoscribe on the upgrade of Matrix 4 to Matrix Gemini, staff at Cavendish Nuclear's environmental laboratory have become so proficient in using Gemini's one-time configuration tools that they manage and implement any updates and developments to their own system as their needs arise. Background Cavendish Nuclear's environmental laboratory is an internationally ...


    By Autoscribe Informatics

  • Interviews: Ken Buesseler, Researcher into marine discharges at Fukushima

    We as scientists do have a responsibility and I hope to be able to contribute in some way“ Ken Buesseler, researcher at the Wood Hoods Oceanographic Institute is investigating the radioactivity leaked from the Fukushima nuclear power station, initially from data facilitated by the TEPCO (Tokyo Electric Power Company) and then from samples gathered in situ. He believes that official bodies ...

  • Stratigraphy of Quaternary inner-shelf sediments in Tai O Bay, Hong Kong, based on ground-truthed seismic profiles

    High-resolution boomer profiles from Tai O Bay, Hong Kong SAR, were ground-truthed using ten discontinuously sampled boreholes penetrating bedrock with a maximum length of 82.1 m. The relationship between depth below seabed and seismic profiles was established through the measurement of two borehole compressional-wave velocity profiles. In departure from previous interpretations, nine Quaternary ...


    By Springer

  • Chromatography plays its part in turning Science Fiction into Science Fact

    Tomek Bagiński’s short film Ambition picks up on a fundamental drive of human kind, a thirst for knowledge and understanding, a thirst that can be sated through projects like Rosetta which are turning science fiction into science fact: Ambition the film Rosetta is an ESA mission with contributions ...


    By Anthias Consulting Ltd.

  • Managing Low-level Radioisotopes as Part of a Company´s Total Lifecycle of Chemicals and Radioactive Materials

    Chiron Corporation is one of the world’s leading biopharmaceutical companies with businesses in biopharmaceuticals, vaccines and blood testing. In addition to manufacturing facilities, Chiron has an extensive research and development organization, which works with chemicals and radioactive materials. Under Federal, State and Local regulations, as well as corporate operating ...


    By Chemical Safety Software

  • Whatever your discipline, there is a liquid scintillation counter in the 300 SL range to suit every need

    Working in life science research, radiochemistry or radiation protection? Then the standard model 300 SL is the perfect solution. Compact, lightweight and easily integrated into small laboratories this model offers optimum counting efficiency of samples without any external or internal standard source of radioactivity. However, if you are dealing with more challenging samples, such as those often ...

  • Some socio-technical aspects of intelligent buildings and pervasive computing research

    Recent reports from the European Parliament Technology Assessment unit and the UK Information Commissioner's Office have highlighted the need for debate on how society should balance the convenience that new technology affords with the need to preserve privacy. To date, most of the debate has addressed the more visible aspects of technology and privacy such as surveillance cameras, ...

  • Sydney Water Environment and Innovation

    The Hydrographic Group within Sydney Water controls and manages the corporate Hydstra/TS licence, which is used throughout Sydney Water Corporation. The central Hydstra archive is held on the Hydrographic server, and contains over 20,000,000 days of archived data for specific parameters. Data subsets are distributed from here via Hydstra exports to 18 network sites, comprising Sydney Water, AWT, ...


    By KISTERS AG

  • Impact of sedimentation on wetland carbon sequestration in an agricultural watershed

    Received for publication January 9, 2008. Landscape redistribution of soil C is common within agricultural ecosystems. Little is known about the effects of upland sediment deposition on C dynamics within riparian wetlands. To assess sedimentation impact, we obtained profile samples of wetland soil and used the combination of 137Cs, 210Pb, and 14C chronological markers to determine rates of C ...

  • Online discharge measurement with OTT SLD

    Background For the economic management of the waterways between Elbe and Oder it is essential to know the discharge of these rivers at defined locks. The authority for water and navigation (WSA) in Lauenburg operates hydrological stations for the measurement of water level and discharge to effectively regulate the water flow at the locks in Plau and Malliß ...


    By OTT HydroMet

  • Dealing with white goods

    The Hemlock Knoll Sanitary Landfill, operated by the South West Solid Waste Commission (SWSWC), is the waste management facility for the South Western portion of New Brunswick. This facility, which opened in the fall of 1997, serves approximately 14,000 households. In the past, when the area was serviced by twenty-two old style dumps, the disposal method for most household trash was fairly ...

  • How Cuba turns early warning into joined-up action

    Cuba's early warning approach holds lessons for other countries, write disaster risk reduction specialists Veronica F. Grasso and José Rubiera. Advances in the early warning of natural hazards could bring great benefits to countries and communities. But early warning needs early action: if political will and coordination are lacking, the advantages could be lost. What a ...


    By SciDev.Net

  • Ontario Regions Invest In Residential Organics Diversion

    The Regions of Peel and Durham have distributed bins and kitchen containers for source separated organics to 460,000 households to receive weekly curbside collection. Starting April 2nd, residents in Caledon, Brampton and Mississauga, Ontario - all in the Region of Peel - began setting out kitchen waste and soiled paper at the curbside for weekly collection. Between February and March, more ...


    By BioCycle Magazine

  • REACH Exposed: Stressing environmental compliance

    In June 2007, I contributed an article to SMT that focused on the emergence of environmentally conscious technologies (ECTs), to address the ever present requirements for greener products and the greening of manufacturing supply chains. The key factors identified when evaluating the use of ECT’s were toxicity, energy, and waste.  Toxicity requirements have been driven by global product ...


    By The GoodBye Chain Group

  • REACH exposed: stressing environmental compliance

    Originally published in SMT May, 2008 In June 2007, I contributed an article to SMT that focused on the emergence of environmentally conscious technologies (ECTs), to address the ever present requirements for greener products and the greening of manufacturing supply chains. The key factors identified when evaluating the use of ECT’s were toxicity, energy, and waste. Toxicity ...


    By Quantum Compliance

  • Increasing efficiency with permanent leakage monitoring - Case study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting the ...


    By Gutermann AG

  • Global: Increasing Efficiency with Permanent Leakage Monitoring - Case Study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting ...


    By Gutermann AG

  • Rt-Ribosyn – A New Method to Measure the Specific Growth Rates of Distinct Microbial Populations in Engineered Systems

    ABSTRACTA molecular biology based method called RT-RiboSyn has been developed to measure the specific growth rate of microbial populations. This method analyzes culture samples that have been exposed to chloramphenicol for defined times. Chloramphenicol disrupts ribosome synthesis, which causes a buildup of the level of precursor 16S rRNA within the cells. Specific microbial populations can be ...

  • Disposal Company Expands Composting Operations

    Since 1997, Texas Disposal Systems, Inc. (TDS) - an independently owned solid waste company located near Austin, Texas - has operated a composting division, Texas Organic Products (TOP). In our previous BioCycle report ( -Composting Is Alive and Well In Central Texas, - October, 1997), we described how TOP evolved after starting an initial grinding and static pile composting operation at our ...


    By BioCycle Magazine

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you