Tom W Brossard

Learn More
Sugars produced from photosynthesis in leaves are transported through the phloem tissues within veins and delivered to non-photosynthetic organs, such as roots, stems, flowers, and seeds, to support their growth and/or storage of carbohydrates. However, because the phloem is located internally within the veins, it is difficult to access and to study the(More)
The High Arctic summer with its permanent sunlight provides a situation in which one of the natural synchronizers, the light-dark alternation, is minimal. During the summers of 1981 and 1982 three healthy right-handed geographers who were performing field studies in Svalbard as part of their own research volunteered to document, 4-6 times per 24 hr for(More)
Sucrose transporter (SUT) proteins translocate sucrose across cell membranes; however, mechanistic aspects of sucrose binding by SUTs are not well resolved. Specific hydroxyl groups in sucrose participate in hydrogen bonding with SUT proteins. We previously reported that substituting a radioactive fluorine-18 [18F] at the C-6' position within the fructosyl(More)
"After more than a century of decline, noticeable increases in the rural population of France became apparent in the 1982 census. The spatial patterns of these changes are interpreted by comparing a set of demographic variables in the 1968-1975 and 1975-1982 intercensal periods. Migration to rural areas near many of the major cities (rurbanization) and to(More)
  • 1