Brain size scaling through development in the whitelined sphinx moth (Hyles lineata) shows mass and cell number comparable to flies, bees, and wasps.

Factors regulating larval growth and determinants of adult body size are described for several holometabolous insects, but less is known about brain size scaling through development. Here we use the isotropic fractionation ("brain soup") method to estimate the number of brain cells and cell density for the whitelined sphinx moth (Lepidoptera: Hyles lineata) from the first instar through the adult stage. We measure mass and brain cell number and find that, during the larval stages, body mass shows an exponential relationship with head width, while the total number of brain cells increases asymptotically.

Not an Impostor After All.

A retired nurse gets up to speed, with a little help from a nursing student.

A symptom-management program for patients undergoing cancer treatment: the Pro-Self Program.

Objective: To describe the development, implementation, and refinement of the Pro-Self Program, a self-care intervention used in randomized clinical trials. The program is designed to provide adult patients undergoing cancer treatment with the information, skill, and support needed to engage effectively and consistently in prescribed self-care symptom management. The aim of the program is to enhance patients' self-care abilities to prevent symptoms or to reduce symptom severity and duration associated with disease and treatment.