RESUMO
A method is presented to obtain normalized high resolution slant path transmittance spectra of the atmosphere. Sample spectra are presented. The spectra are of use in remote sensing applications for various types of atmospheric physics and atmospheric photochemistry research, for validating line parameter compilations, and for modeling slant path radiative transfer. The sample spectra are used to demonstrate improved accuracy of line-by-line transmission models when recently reported water vapor line parameters are substituted for those in the 1986 AFGL line parameter compilation in the region near 1 microm.
RESUMO
An experiment originally done by McElhaney et al. was repeated to obtain additional information about the effects of electrical fields on osteoporosis of disuse. The right femurs of 35 male rats were immobilized in plaster casts. Sixteen rats were treated with transcutaneous electrical fields of 30 Hz and approximately 100 V/cm for periods of 2 or 8 h a day. While the right femurs of the untreated rats were found to be atrophic with respect to the opposite limb, in the treated rats the immobilized femur was made larger than the opposite bone. Longer daily treatments exaggerated this effect. The tumors found in the previous study were not seen in our experiments. Other similarities and differences in the 2 studies are discussed.
Assuntos
Osteoporose/terapia , Animais , Modelos Animais de Doenças , Terapia por Estimulação Elétrica , Fêmur , Masculino , Osteogênese , Osteoporose/etiologia , Osteoporose/fisiopatologia , Ratos , Restrição Física/efeitos adversosRESUMO
The somatic sensory cortex (SI and SII) was mapped in llamas using microelectrode mapping methods developed earlier in a study of SI of the slow loris. Projections to SI from the llama's prehensile browsing lips were differentially enlarged when compared to those reported for sheep. In llama, SII was reversed in its mediolatreal pattern from that reported for SII in most other mammals. Fissural landmarks reliably demarcated different projections within SI, between SI and SII and between SI or SII and other surrounding nonsensory areas. The use of microelectrode mapping methods in different mammals to determine gyral and fissural homologies is discussed.
