The effect of diet water content on energy expenditure by third-instar Manduca sexta larvae (Lepidoptera: Sphingidae)

The Effect of Larval Diet and Sex on Nectar Nicotine Feeding Preferences in Manduca Sexta (Lepidoptera: Sphingidae)

Perception of change in depth in the hummingbird hawkmoth Manduca sexta (Sphingidae, Lepidoptera)

Visual perception of depth change can be mediated monocularly by looming the apparent size increase of an approaching object. In Manduca sexta we recorded intracellularly from cells that detect both approach and retreat of an object. The cells compute looming in two fundamentally di!erent ways: class 1 neurons measure the change of perimeter/edge length of the object; class 2 neurons respond to...

The Juvenile Hormone Binding Protein in the Hemolymph of Manduca sexta Johannson (Lepidoptera: Sphingidae).

C(18):juvenile hormone is quite soluble in water, yielding a monomeric solution greater than 10(-5) M. In vivo injection or addition of aqueous juvenile hormone to the hemolymph in vitro shows the complexation of juvenile hormone to a protein, as demonstrated by gel permeation chromatography and disc-gel electrophoresis. The protein has an apparent molecular weight of 3.4 x 10(4) and is present...

the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests

در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است

Heartbeat reversal after sectioning the dorsal vessel and removal of the brain of diapausing pupae of Manduca sexta (Lepidoptera: Sphingidae)

Reversal of heartbeat was monitored in vivo by noninvasive, multisensor, thermo-cardiographic and pulse-light, optocardiographic techniques. The dorsal vessel was sectioned at the beginning, in the middle and near the end of the abdomen. Changes in the heartbeat were simultaneously monitored in both the disconnected anterior and posterior sections of the heart. The results revealed the existenc...