Biomedical subjects

T E Lange

Publications and source records attributed to T E Lange.

3 recordsLinked to original sources

PubMed2003

Accelerator mass spectrometry at Arizona: geochronology of the climate record and connections with the ocean.

There are many diverse uses of accelerator mass spectrometry (AMS). Carbon-14 studies at our laboratory include much research related to paleoclimate, both with 14C as a tracer of past changes in environmental conditions as observed in corals, marine sediments and many terrestrial records. Terrestrial records such as forest fires can also show the influence of oceanic oscillations, whether they are short-term such as ENSO, or on the millennial time scale. In tracer applications, we have developed the use of 129I as well as 14C as tracers for nuclear pollution studies around radioactive waste dump sites, in collaboration with IAEA. We discuss some applications carried out in Tucson for several of these fields and hope to give some idea of the breadth of these studies.

Beryllium↗

PubMed2002

Accelerator mass spectrometry at Arizona: geochronology of the climatic record and connections with the ocean.

There are many diverse uses of accelerator mass spectrometry (AMS). 14C studies at our laboratory include much research related to paleoclimate, with 14C as a tracer of past changes in environmental conditions as observed in corals, marine sediments, and many terrestrial records. Terrestrial records can also show the influence of oceanic oscillations, whether they are short term, such as ENSO (El Niño/Southern Oscillation), or on the millennial time scale. In tracer applications, we have developed the use of 129I as well as 14C as tracers for nuclear pollution studies around radioactive waste dump sites, in collaboration with IAEA. We discuss some applications carried out in Tucson, AZ, for several of these fields and hope to give some idea of the breadth of these studies.

Archaeology↗

PubMed1996

Remote analogical reminding.

Remote analogical reminding is hypothesized to occur when one episode is cued by another sharing similar themes but not similar object, character, or event descriptions. We report three experiments exploring this view. Subjects' remindings in Experiment 1 showed sensitivity to remote analogical similarity even though targets were encoded only briefly in an incidental learning paradigm. Experiment 2 subjects showed reliable remindings of remote analogs with study-test delays of up to 1 week. Experiment 3 demonstrated that remote analogical reminding effects are not an artifact of subjects' editing nonanalogical remindings. All experiments supported the hypothesis that human memory is sensitive to remote analogical similarity. We discuss the implications of these findings for memory models. Future progress requires the development of formal models that quantify factors relevant to reminding performance, such as reminding interference, transfer-appropriate processing, and domain expertise.

Adolescent↗