Regionalization of surface lipids in insects.

Compactness for Regionalization and its Application in Land-Use Planning

Continuous regionalization for massive surface waves dataset

correlation between r i and each geographical point r j belonging to path j (Fig.1 b) : Continuous regionalization for massive surface waves dataset Eric Debayle 1 and Malcolm Sambridge Institut de physique du globe de Strasbourg, CNRS and Université Louis Pasteur, Strasbourg, France ([email protected]) Research School of Earth Science, Australian National University, Canberra, Aus...

Intra-individual Variation in Cuticular Lipids Studied Using Fourier Transform Infrared Spectroscopy

We report here a method for studying phase transitions in cuticular lipids of insects. This technique, Fourier transform infrared spectroscopy (FTIR), is more sensitive than previous biophysical methods and is applicable to either lipid extracts or lipids in situ (in cast skins or intact wings). We used FTIR to compare biophysical properties of cuticular lipids in different regions of individua...

Membrane lipid dynamics during human sperm capacitation.

Sperm membranes have an unusual lipidic composition which is distinct from those of mammalian somatic cells. They have high levels of plasmalogens, a kind of ether-linked lipids, and a high content of polyunsaturated fatty acyl groups. Plasmalogens may form non-diffusible membrane regions or domains, whereas polyunsaturated ethanolamine plasmalogens are known to destabilize the lipidic bilayer....

Lateral regionalization and diffusion of a maturation-dependent antigen in the ram sperm plasma membrane

We have used a monoclonal antibody ESA 152 in fluorescence recovery after photobleaching (FPR) studies of a maturation-dependent surface antigen of ram sperm. The antibody is an immunoglobulin G secreted by a hybridoma derived from NS1 mouse myeloma cells. The ESA 152 antigen is not detectable in testicular sperm. It is localized on the surface of ejaculated sperm where it is present on all reg...